diff options
Diffstat (limited to 'arch/sparc64/kernel')
92 files changed, 0 insertions, 43343 deletions
diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile deleted file mode 100644 index b3e0b986bef8..000000000000 --- a/arch/sparc64/kernel/Makefile +++ /dev/null @@ -1,36 +0,0 @@ -# -# Makefile for the linux kernel. -# - -EXTRA_AFLAGS := -ansi -EXTRA_CFLAGS := -Werror - -CFLAGS_REMOVE_ftrace.o = -pg - -extra-y := head.o init_task.o vmlinux.lds - -obj-y := process.o setup.o cpu.o idprom.o reboot.o \ - traps.o auxio.o una_asm.o sysfs.o iommu.o \ - irq.o ptrace.o time.o sys_sparc.o signal.o \ - unaligned.o central.o starfire.o \ - power.o sbus.o sparc64_ksyms.o ebus.o \ - visemul.o prom.o of_device.o hvapi.o sstate.o mdesc.o - -obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o -obj-$(CONFIG_STACKTRACE) += stacktrace.o -obj-$(CONFIG_PCI) += pci.o pci_common.o psycho_common.o \ - pci_psycho.o pci_sabre.o pci_schizo.o \ - pci_sun4v.o pci_sun4v_asm.o pci_fire.o -obj-$(CONFIG_PCI_MSI) += pci_msi.o -obj-$(CONFIG_SMP) += smp.o trampoline.o hvtramp.o -obj-$(CONFIG_COMPAT) += sys32.o sys_sparc32.o signal32.o -obj-$(CONFIG_MODULES) += module.o -obj-$(CONFIG_US3_FREQ) += us3_cpufreq.o -obj-$(CONFIG_US2E_FREQ) += us2e_cpufreq.o -obj-$(CONFIG_US3_MC) += chmc.o -obj-$(CONFIG_KPROBES) += kprobes.o -obj-$(CONFIG_SUN_LDOMS) += ldc.o vio.o viohs.o ds.o -obj-$(CONFIG_AUDIT) += audit.o -obj-$(CONFIG_AUDIT)$(CONFIG_COMPAT) += compat_audit.o -obj-y += $(obj-yy) -obj-$(CONFIG_KGDB) += kgdb.o diff --git a/arch/sparc64/kernel/asm-offsets.c b/arch/sparc64/kernel/asm-offsets.c deleted file mode 100644 index 9e263112a6e2..000000000000 --- a/arch/sparc64/kernel/asm-offsets.c +++ /dev/null @@ -1 +0,0 @@ -/* Dummy asm-offsets.c file. Required by kbuild and ready to be used - hint! */ diff --git a/arch/sparc64/kernel/audit.c b/arch/sparc64/kernel/audit.c deleted file mode 100644 index 8fff0ac63d56..000000000000 --- a/arch/sparc64/kernel/audit.c +++ /dev/null @@ -1,83 +0,0 @@ -#include <linux/init.h> -#include <linux/types.h> -#include <linux/audit.h> -#include <asm/unistd.h> - -static unsigned dir_class[] = { -#include <asm-generic/audit_dir_write.h> -~0U -}; - -static unsigned read_class[] = { -#include <asm-generic/audit_read.h> -~0U -}; - -static unsigned write_class[] = { -#include <asm-generic/audit_write.h> -~0U -}; - -static unsigned chattr_class[] = { -#include <asm-generic/audit_change_attr.h> -~0U -}; - -static unsigned signal_class[] = { -#include <asm-generic/audit_signal.h> -~0U -}; - -int audit_classify_arch(int arch) -{ -#ifdef CONFIG_COMPAT - if (arch == AUDIT_ARCH_SPARC) - return 1; -#endif - return 0; -} - -int audit_classify_syscall(int abi, unsigned syscall) -{ -#ifdef CONFIG_COMPAT - extern int sparc32_classify_syscall(unsigned); - if (abi == AUDIT_ARCH_SPARC) - return sparc32_classify_syscall(syscall); -#endif - switch(syscall) { - case __NR_open: - return 2; - case __NR_openat: - return 3; - case __NR_socketcall: - return 4; - case __NR_execve: - return 5; - default: - return 0; - } -} - -static int __init audit_classes_init(void) -{ -#ifdef CONFIG_COMPAT - extern __u32 sparc32_dir_class[]; - extern __u32 sparc32_write_class[]; - extern __u32 sparc32_read_class[]; - extern __u32 sparc32_chattr_class[]; - extern __u32 sparc32_signal_class[]; - audit_register_class(AUDIT_CLASS_WRITE_32, sparc32_write_class); - audit_register_class(AUDIT_CLASS_READ_32, sparc32_read_class); - audit_register_class(AUDIT_CLASS_DIR_WRITE_32, sparc32_dir_class); - audit_register_class(AUDIT_CLASS_CHATTR_32, sparc32_chattr_class); - audit_register_class(AUDIT_CLASS_SIGNAL_32, sparc32_signal_class); -#endif - audit_register_class(AUDIT_CLASS_WRITE, write_class); - audit_register_class(AUDIT_CLASS_READ, read_class); - audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class); - audit_register_class(AUDIT_CLASS_CHATTR, chattr_class); - audit_register_class(AUDIT_CLASS_SIGNAL, signal_class); - return 0; -} - -__initcall(audit_classes_init); diff --git a/arch/sparc64/kernel/auxio.c b/arch/sparc64/kernel/auxio.c deleted file mode 100644 index 858beda86524..000000000000 --- a/arch/sparc64/kernel/auxio.c +++ /dev/null @@ -1,167 +0,0 @@ -/* auxio.c: Probing for the Sparc AUXIO register at boot time. - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - * - * Refactoring for unified NCR/PCIO support 2002 Eric Brower (ebrower@usa.net) - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/of_device.h> - -#include <asm/prom.h> -#include <asm/io.h> -#include <asm/auxio.h> - -void __iomem *auxio_register = NULL; -EXPORT_SYMBOL(auxio_register); - -enum auxio_type { - AUXIO_TYPE_NODEV, - AUXIO_TYPE_SBUS, - AUXIO_TYPE_EBUS -}; - -static enum auxio_type auxio_devtype = AUXIO_TYPE_NODEV; -static DEFINE_SPINLOCK(auxio_lock); - -static void __auxio_sbus_set(u8 bits_on, u8 bits_off) -{ - if (auxio_register) { - unsigned char regval; - unsigned long flags; - unsigned char newval; - - spin_lock_irqsave(&auxio_lock, flags); - - regval = sbus_readb(auxio_register); - newval = regval | bits_on; - newval &= ~bits_off; - newval &= ~AUXIO_AUX1_MASK; - sbus_writeb(newval, auxio_register); - - spin_unlock_irqrestore(&auxio_lock, flags); - } -} - -static void __auxio_ebus_set(u8 bits_on, u8 bits_off) -{ - if (auxio_register) { - unsigned char regval; - unsigned long flags; - unsigned char newval; - - spin_lock_irqsave(&auxio_lock, flags); - - regval = (u8)readl(auxio_register); - newval = regval | bits_on; - newval &= ~bits_off; - writel((u32)newval, auxio_register); - - spin_unlock_irqrestore(&auxio_lock, flags); - } -} - -static inline void __auxio_ebus_set_led(int on) -{ - (on) ? __auxio_ebus_set(AUXIO_PCIO_LED, 0) : - __auxio_ebus_set(0, AUXIO_PCIO_LED) ; -} - -static inline void __auxio_sbus_set_led(int on) -{ - (on) ? __auxio_sbus_set(AUXIO_AUX1_LED, 0) : - __auxio_sbus_set(0, AUXIO_AUX1_LED) ; -} - -void auxio_set_led(int on) -{ - switch(auxio_devtype) { - case AUXIO_TYPE_SBUS: - __auxio_sbus_set_led(on); - break; - case AUXIO_TYPE_EBUS: - __auxio_ebus_set_led(on); - break; - default: - break; - } -} - -static inline void __auxio_sbus_set_lte(int on) -{ - (on) ? __auxio_sbus_set(AUXIO_AUX1_LTE, 0) : - __auxio_sbus_set(0, AUXIO_AUX1_LTE) ; -} - -void auxio_set_lte(int on) -{ - switch(auxio_devtype) { - case AUXIO_TYPE_SBUS: - __auxio_sbus_set_lte(on); - break; - case AUXIO_TYPE_EBUS: - /* FALL-THROUGH */ - default: - break; - } -} - -static struct of_device_id __initdata auxio_match[] = { - { - .name = "auxio", - }, - {}, -}; - -MODULE_DEVICE_TABLE(of, auxio_match); - -static int __devinit auxio_probe(struct of_device *dev, const struct of_device_id *match) -{ - struct device_node *dp = dev->node; - unsigned long size; - - if (!strcmp(dp->parent->name, "ebus")) { - auxio_devtype = AUXIO_TYPE_EBUS; - size = sizeof(u32); - } else if (!strcmp(dp->parent->name, "sbus")) { - auxio_devtype = AUXIO_TYPE_SBUS; - size = 1; - } else { - printk("auxio: Unknown parent bus type [%s]\n", - dp->parent->name); - return -ENODEV; - } - auxio_register = of_ioremap(&dev->resource[0], 0, size, "auxio"); - if (!auxio_register) - return -ENODEV; - - printk(KERN_INFO "AUXIO: Found device at %s\n", - dp->full_name); - - if (auxio_devtype == AUXIO_TYPE_EBUS) - auxio_set_led(AUXIO_LED_ON); - - return 0; -} - -static struct of_platform_driver auxio_driver = { - .match_table = auxio_match, - .probe = auxio_probe, - .driver = { - .name = "auxio", - }, -}; - -static int __init auxio_init(void) -{ - return of_register_driver(&auxio_driver, &of_platform_bus_type); -} - -/* Must be after subsys_initcall() so that busses are probed. Must - * be before device_initcall() because things like the floppy driver - * need to use the AUXIO register. - */ -fs_initcall(auxio_init); diff --git a/arch/sparc64/kernel/central.c b/arch/sparc64/kernel/central.c deleted file mode 100644 index 05f1c916db06..000000000000 --- a/arch/sparc64/kernel/central.c +++ /dev/null @@ -1,268 +0,0 @@ -/* central.c: Central FHC driver for Sunfire/Starfire/Wildfire. - * - * Copyright (C) 1997, 1999, 2008 David S. Miller (davem@davemloft.net) - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/init.h> -#include <linux/of_device.h> -#include <linux/platform_device.h> - -#include <asm/fhc.h> -#include <asm/upa.h> - -struct clock_board { - void __iomem *clock_freq_regs; - void __iomem *clock_regs; - void __iomem *clock_ver_reg; - int num_slots; - struct resource leds_resource; - struct platform_device leds_pdev; -}; - -struct fhc { - void __iomem *pregs; - bool central; - bool jtag_master; - int board_num; - struct resource leds_resource; - struct platform_device leds_pdev; -}; - -static int __devinit clock_board_calc_nslots(struct clock_board *p) -{ - u8 reg = upa_readb(p->clock_regs + CLOCK_STAT1) & 0xc0; - - switch (reg) { - case 0x40: - return 16; - - case 0xc0: - return 8; - - case 0x80: - reg = 0; - if (p->clock_ver_reg) - reg = upa_readb(p->clock_ver_reg); - if (reg) { - if (reg & 0x80) - return 4; - else - return 5; - } - /* Fallthrough */ - default: - return 4; - } -} - -static int __devinit clock_board_probe(struct of_device *op, - const struct of_device_id *match) -{ - struct clock_board *p = kzalloc(sizeof(*p), GFP_KERNEL); - int err = -ENOMEM; - - if (!p) { - printk(KERN_ERR "clock_board: Cannot allocate struct clock_board\n"); - goto out; - } - - p->clock_freq_regs = of_ioremap(&op->resource[0], 0, - resource_size(&op->resource[0]), - "clock_board_freq"); - if (!p->clock_freq_regs) { - printk(KERN_ERR "clock_board: Cannot map clock_freq_regs\n"); - goto out_free; - } - - p->clock_regs = of_ioremap(&op->resource[1], 0, - resource_size(&op->resource[1]), - "clock_board_regs"); - if (!p->clock_regs) { - printk(KERN_ERR "clock_board: Cannot map clock_regs\n"); - goto out_unmap_clock_freq_regs; - } - - if (op->resource[2].flags) { - p->clock_ver_reg = of_ioremap(&op->resource[2], 0, - resource_size(&op->resource[2]), - "clock_ver_reg"); - if (!p->clock_ver_reg) { - printk(KERN_ERR "clock_board: Cannot map clock_ver_reg\n"); - goto out_unmap_clock_regs; - } - } - - p->num_slots = clock_board_calc_nslots(p); - - p->leds_resource.start = (unsigned long) - (p->clock_regs + CLOCK_CTRL); - p->leds_resource.end = p->leds_resource.end; - p->leds_resource.name = "leds"; - - p->leds_pdev.name = "sunfire-clockboard-leds"; - p->leds_pdev.resource = &p->leds_resource; - p->leds_pdev.num_resources = 1; - p->leds_pdev.dev.parent = &op->dev; - - err = platform_device_register(&p->leds_pdev); - if (err) { - printk(KERN_ERR "clock_board: Could not register LEDS " - "platform device\n"); - goto out_unmap_clock_ver_reg; - } - - printk(KERN_INFO "clock_board: Detected %d slot Enterprise system.\n", - p->num_slots); - - err = 0; -out: - return err; - -out_unmap_clock_ver_reg: - if (p->clock_ver_reg) - of_iounmap(&op->resource[2], p->clock_ver_reg, - resource_size(&op->resource[2])); - -out_unmap_clock_regs: - of_iounmap(&op->resource[1], p->clock_regs, - resource_size(&op->resource[1])); - -out_unmap_clock_freq_regs: - of_iounmap(&op->resource[0], p->clock_freq_regs, - resource_size(&op->resource[0])); - -out_free: - kfree(p); - goto out; -} - -static struct of_device_id __initdata clock_board_match[] = { - { - .name = "clock-board", - }, - {}, -}; - -static struct of_platform_driver clock_board_driver = { - .match_table = clock_board_match, - .probe = clock_board_probe, - .driver = { - .name = "clock_board", - }, -}; - -static int __devinit fhc_probe(struct of_device *op, - const struct of_device_id *match) -{ - struct fhc *p = kzalloc(sizeof(*p), GFP_KERNEL); - int err = -ENOMEM; - u32 reg; - - if (!p) { - printk(KERN_ERR "fhc: Cannot allocate struct fhc\n"); - goto out; - } - - if (!strcmp(op->node->parent->name, "central")) - p->central = true; - - p->pregs = of_ioremap(&op->resource[0], 0, - resource_size(&op->resource[0]), - "fhc_pregs"); - if (!p->pregs) { - printk(KERN_ERR "fhc: Cannot map pregs\n"); - goto out_free; - } - - if (p->central) { - reg = upa_readl(p->pregs + FHC_PREGS_BSR); - p->board_num = ((reg >> 16) & 1) | ((reg >> 12) & 0x0e); - } else { - p->board_num = of_getintprop_default(op->node, "board#", -1); - if (p->board_num == -1) { - printk(KERN_ERR "fhc: No board# property\n"); - goto out_unmap_pregs; - } - if (upa_readl(p->pregs + FHC_PREGS_JCTRL) & FHC_JTAG_CTRL_MENAB) - p->jtag_master = true; - } - - if (!p->central) { - p->leds_resource.start = (unsigned long) - (p->pregs + FHC_PREGS_CTRL); - p->leds_resource.end = p->leds_resource.end; - p->leds_resource.name = "leds"; - - p->leds_pdev.name = "sunfire-fhc-leds"; - p->leds_pdev.resource = &p->leds_resource; - p->leds_pdev.num_resources = 1; - p->leds_pdev.dev.parent = &op->dev; - - err = platform_device_register(&p->leds_pdev); - if (err) { - printk(KERN_ERR "fhc: Could not register LEDS " - "platform device\n"); - goto out_unmap_pregs; - } - } - reg = upa_readl(p->pregs + FHC_PREGS_CTRL); - - if (!p->central) - reg |= FHC_CONTROL_IXIST; - - reg &= ~(FHC_CONTROL_AOFF | - FHC_CONTROL_BOFF | - FHC_CONTROL_SLINE); - - upa_writel(reg, p->pregs + FHC_PREGS_CTRL); - upa_readl(p->pregs + FHC_PREGS_CTRL); - - reg = upa_readl(p->pregs + FHC_PREGS_ID); - printk(KERN_INFO "fhc: Board #%d, Version[%x] PartID[%x] Manuf[%x] %s\n", - p->board_num, - (reg & FHC_ID_VERS) >> 28, - (reg & FHC_ID_PARTID) >> 12, - (reg & FHC_ID_MANUF) >> 1, - (p->jtag_master ? - "(JTAG Master)" : - (p->central ? "(Central)" : ""))); - - err = 0; - -out: - return err; - -out_unmap_pregs: - of_iounmap(&op->resource[0], p->pregs, resource_size(&op->resource[0])); - -out_free: - kfree(p); - goto out; -} - -static struct of_device_id __initdata fhc_match[] = { - { - .name = "fhc", - }, - {}, -}; - -static struct of_platform_driver fhc_driver = { - .match_table = fhc_match, - .probe = fhc_probe, - .driver = { - .name = "fhc", - }, -}; - -static int __init sunfire_init(void) -{ - (void) of_register_driver(&fhc_driver, &of_platform_bus_type); - (void) of_register_driver(&clock_board_driver, &of_platform_bus_type); - return 0; -} - -subsys_initcall(sunfire_init); diff --git a/arch/sparc64/kernel/cherrs.S b/arch/sparc64/kernel/cherrs.S deleted file mode 100644 index 89afebd7eca0..000000000000 --- a/arch/sparc64/kernel/cherrs.S +++ /dev/null @@ -1,579 +0,0 @@ - /* These get patched into the trap table at boot time - * once we know we have a cheetah processor. - */ - .globl cheetah_fecc_trap_vector - .type cheetah_fecc_trap_vector,#function -cheetah_fecc_trap_vector: - membar #Sync - ldxa [%g0] ASI_DCU_CONTROL_REG, %g1 - andn %g1, DCU_DC | DCU_IC, %g1 - stxa %g1, [%g0] ASI_DCU_CONTROL_REG - membar #Sync - sethi %hi(cheetah_fast_ecc), %g2 - jmpl %g2 + %lo(cheetah_fast_ecc), %g0 - mov 0, %g1 - .size cheetah_fecc_trap_vector,.-cheetah_fecc_trap_vector - - .globl cheetah_fecc_trap_vector_tl1 - .type cheetah_fecc_trap_vector_tl1,#function -cheetah_fecc_trap_vector_tl1: - membar #Sync - ldxa [%g0] ASI_DCU_CONTROL_REG, %g1 - andn %g1, DCU_DC | DCU_IC, %g1 - stxa %g1, [%g0] ASI_DCU_CONTROL_REG - membar #Sync - sethi %hi(cheetah_fast_ecc), %g2 - jmpl %g2 + %lo(cheetah_fast_ecc), %g0 - mov 1, %g1 - .size cheetah_fecc_trap_vector_tl1,.-cheetah_fecc_trap_vector_tl1 - - .globl cheetah_cee_trap_vector - .type cheetah_cee_trap_vector,#function -cheetah_cee_trap_vector: - membar #Sync - ldxa [%g0] ASI_DCU_CONTROL_REG, %g1 - andn %g1, DCU_IC, %g1 - stxa %g1, [%g0] ASI_DCU_CONTROL_REG - membar #Sync - sethi %hi(cheetah_cee), %g2 - jmpl %g2 + %lo(cheetah_cee), %g0 - mov 0, %g1 - .size cheetah_cee_trap_vector,.-cheetah_cee_trap_vector - - .globl cheetah_cee_trap_vector_tl1 - .type cheetah_cee_trap_vector_tl1,#function -cheetah_cee_trap_vector_tl1: - membar #Sync - ldxa [%g0] ASI_DCU_CONTROL_REG, %g1 - andn %g1, DCU_IC, %g1 - stxa %g1, [%g0] ASI_DCU_CONTROL_REG - membar #Sync - sethi %hi(cheetah_cee), %g2 - jmpl %g2 + %lo(cheetah_cee), %g0 - mov 1, %g1 - .size cheetah_cee_trap_vector_tl1,.-cheetah_cee_trap_vector_tl1 - - .globl cheetah_deferred_trap_vector - .type cheetah_deferred_trap_vector,#function -cheetah_deferred_trap_vector: - membar #Sync - ldxa [%g0] ASI_DCU_CONTROL_REG, %g1; - andn %g1, DCU_DC | DCU_IC, %g1; - stxa %g1, [%g0] ASI_DCU_CONTROL_REG; - membar #Sync; - sethi %hi(cheetah_deferred_trap), %g2 - jmpl %g2 + %lo(cheetah_deferred_trap), %g0 - mov 0, %g1 - .size cheetah_deferred_trap_vector,.-cheetah_deferred_trap_vector - - .globl cheetah_deferred_trap_vector_tl1 - .type cheetah_deferred_trap_vector_tl1,#function -cheetah_deferred_trap_vector_tl1: - membar #Sync; - ldxa [%g0] ASI_DCU_CONTROL_REG, %g1; - andn %g1, DCU_DC | DCU_IC, %g1; - stxa %g1, [%g0] ASI_DCU_CONTROL_REG; - membar #Sync; - sethi %hi(cheetah_deferred_trap), %g2 - jmpl %g2 + %lo(cheetah_deferred_trap), %g0 - mov 1, %g1 - .size cheetah_deferred_trap_vector_tl1,.-cheetah_deferred_trap_vector_tl1 - - /* Cheetah+ specific traps. These are for the new I/D cache parity - * error traps. The first argument to cheetah_plus_parity_handler - * is encoded as follows: - * - * Bit0: 0=dcache,1=icache - * Bit1: 0=recoverable,1=unrecoverable - */ - .globl cheetah_plus_dcpe_trap_vector - .type cheetah_plus_dcpe_trap_vector,#function -cheetah_plus_dcpe_trap_vector: - membar #Sync - sethi %hi(do_cheetah_plus_data_parity), %g7 - jmpl %g7 + %lo(do_cheetah_plus_data_parity), %g0 - nop - nop - nop - nop - nop - .size cheetah_plus_dcpe_trap_vector,.-cheetah_plus_dcpe_trap_vector - - .type do_cheetah_plus_data_parity,#function -do_cheetah_plus_data_parity: - rdpr %pil, %g2 - wrpr %g0, 15, %pil - ba,pt %xcc, etrap_irq - rd %pc, %g7 -#ifdef CONFIG_TRACE_IRQFLAGS - call trace_hardirqs_off - nop -#endif - mov 0x0, %o0 - call cheetah_plus_parity_error - add %sp, PTREGS_OFF, %o1 - ba,a,pt %xcc, rtrap_irq - .size do_cheetah_plus_data_parity,.-do_cheetah_plus_data_parity - - .globl cheetah_plus_dcpe_trap_vector_tl1 - .type cheetah_plus_dcpe_trap_vector_tl1,#function -cheetah_plus_dcpe_trap_vector_tl1: - membar #Sync - wrpr PSTATE_IG | PSTATE_PEF | PSTATE_PRIV, %pstate - sethi %hi(do_dcpe_tl1), %g3 - jmpl %g3 + %lo(do_dcpe_tl1), %g0 - nop - nop - nop - nop - .size cheetah_plus_dcpe_trap_vector_tl1,.-cheetah_plus_dcpe_trap_vector_tl1 - - .globl cheetah_plus_icpe_trap_vector - .type cheetah_plus_icpe_trap_vector,#function -cheetah_plus_icpe_trap_vector: - membar #Sync - sethi %hi(do_cheetah_plus_insn_parity), %g7 - jmpl %g7 + %lo(do_cheetah_plus_insn_parity), %g0 - nop - nop - nop - nop - nop - .size cheetah_plus_icpe_trap_vector,.-cheetah_plus_icpe_trap_vector - - .type do_cheetah_plus_insn_parity,#function -do_cheetah_plus_insn_parity: - rdpr %pil, %g2 - wrpr %g0, 15, %pil - ba,pt %xcc, etrap_irq - rd %pc, %g7 -#ifdef CONFIG_TRACE_IRQFLAGS - call trace_hardirqs_off - nop -#endif - mov 0x1, %o0 - call cheetah_plus_parity_error - add %sp, PTREGS_OFF, %o1 - ba,a,pt %xcc, rtrap_irq - .size do_cheetah_plus_insn_parity,.-do_cheetah_plus_insn_parity - - .globl cheetah_plus_icpe_trap_vector_tl1 - .type cheetah_plus_icpe_trap_vector_tl1,#function -cheetah_plus_icpe_trap_vector_tl1: - membar #Sync - wrpr PSTATE_IG | PSTATE_PEF | PSTATE_PRIV, %pstate - sethi %hi(do_icpe_tl1), %g3 - jmpl %g3 + %lo(do_icpe_tl1), %g0 - nop - nop - nop - nop - .size cheetah_plus_icpe_trap_vector_tl1,.-cheetah_plus_icpe_trap_vector_tl1 - - /* If we take one of these traps when tl >= 1, then we - * jump to interrupt globals. If some trap level above us - * was also using interrupt globals, we cannot recover. - * We may use all interrupt global registers except %g6. - */ - .globl do_dcpe_tl1 - .type do_dcpe_tl1,#function -do_dcpe_tl1: - rdpr %tl, %g1 ! Save original trap level - mov 1, %g2 ! Setup TSTATE checking loop - sethi %hi(TSTATE_IG), %g3 ! TSTATE mask bit -1: wrpr %g2, %tl ! Set trap level to check - rdpr %tstate, %g4 ! Read TSTATE for this level - andcc %g4, %g3, %g0 ! Interrupt globals in use? - bne,a,pn %xcc, do_dcpe_tl1_fatal ! Yep, irrecoverable - wrpr %g1, %tl ! Restore original trap level - add %g2, 1, %g2 ! Next trap level - cmp %g2, %g1 ! Hit them all yet? - ble,pt %icc, 1b ! Not yet - nop - wrpr %g1, %tl ! Restore original trap level -do_dcpe_tl1_nonfatal: /* Ok we may use interrupt globals safely. */ - sethi %hi(dcache_parity_tl1_occurred), %g2 - lduw [%g2 + %lo(dcache_parity_tl1_occurred)], %g1 - add %g1, 1, %g1 - stw %g1, [%g2 + %lo(dcache_parity_tl1_occurred)] - /* Reset D-cache parity */ - sethi %hi(1 << 16), %g1 ! D-cache size - mov (1 << 5), %g2 ! D-cache line size - sub %g1, %g2, %g1 ! Move down 1 cacheline -1: srl %g1, 14, %g3 ! Compute UTAG - membar #Sync - stxa %g3, [%g1] ASI_DCACHE_UTAG - membar #Sync - sub %g2, 8, %g3 ! 64-bit data word within line -2: membar #Sync - stxa %g0, [%g1 + %g3] ASI_DCACHE_DATA - membar #Sync - subcc %g3, 8, %g3 ! Next 64-bit data word - bge,pt %icc, 2b - nop - subcc %g1, %g2, %g1 ! Next cacheline - bge,pt %icc, 1b - nop - ba,pt %xcc, dcpe_icpe_tl1_common - nop - -do_dcpe_tl1_fatal: - sethi %hi(1f), %g7 - ba,pt %xcc, etraptl1 -1: or %g7, %lo(1b), %g7 - mov 0x2, %o0 - call cheetah_plus_parity_error - add %sp, PTREGS_OFF, %o1 - ba,pt %xcc, rtrap - nop - .size do_dcpe_tl1,.-do_dcpe_tl1 - - .globl do_icpe_tl1 - .type do_icpe_tl1,#function -do_icpe_tl1: - rdpr %tl, %g1 ! Save original trap level - mov 1, %g2 ! Setup TSTATE checking loop - sethi %hi(TSTATE_IG), %g3 ! TSTATE mask bit -1: wrpr %g2, %tl ! Set trap level to check - rdpr %tstate, %g4 ! Read TSTATE for this level - andcc %g4, %g3, %g0 ! Interrupt globals in use? - bne,a,pn %xcc, do_icpe_tl1_fatal ! Yep, irrecoverable - wrpr %g1, %tl ! Restore original trap level - add %g2, 1, %g2 ! Next trap level - cmp %g2, %g1 ! Hit them all yet? - ble,pt %icc, 1b ! Not yet - nop - wrpr %g1, %tl ! Restore original trap level -do_icpe_tl1_nonfatal: /* Ok we may use interrupt globals safely. */ - sethi %hi(icache_parity_tl1_occurred), %g2 - lduw [%g2 + %lo(icache_parity_tl1_occurred)], %g1 - add %g1, 1, %g1 - stw %g1, [%g2 + %lo(icache_parity_tl1_occurred)] - /* Flush I-cache */ - sethi %hi(1 << 15), %g1 ! I-cache size - mov (1 << 5), %g2 ! I-cache line size - sub %g1, %g2, %g1 -1: or %g1, (2 << 3), %g3 - stxa %g0, [%g3] ASI_IC_TAG - membar #Sync - subcc %g1, %g2, %g1 - bge,pt %icc, 1b - nop - ba,pt %xcc, dcpe_icpe_tl1_common - nop - -do_icpe_tl1_fatal: - sethi %hi(1f), %g7 - ba,pt %xcc, etraptl1 -1: or %g7, %lo(1b), %g7 - mov 0x3, %o0 - call cheetah_plus_parity_error - add %sp, PTREGS_OFF, %o1 - ba,pt %xcc, rtrap - nop - .size do_icpe_tl1,.-do_icpe_tl1 - - .type dcpe_icpe_tl1_common,#function -dcpe_icpe_tl1_common: - /* Flush D-cache, re-enable D/I caches in DCU and finally - * retry the trapping instruction. - */ - sethi %hi(1 << 16), %g1 ! D-cache size - mov (1 << 5), %g2 ! D-cache line size - sub %g1, %g2, %g1 -1: stxa %g0, [%g1] ASI_DCACHE_TAG - membar #Sync - subcc %g1, %g2, %g1 - bge,pt %icc, 1b - nop - ldxa [%g0] ASI_DCU_CONTROL_REG, %g1 - or %g1, (DCU_DC | DCU_IC), %g1 - stxa %g1, [%g0] ASI_DCU_CONTROL_REG - membar #Sync - retry - .size dcpe_icpe_tl1_common,.-dcpe_icpe_tl1_common - - /* Capture I/D/E-cache state into per-cpu error scoreboard. - * - * %g1: (TL>=0) ? 1 : 0 - * %g2: scratch - * %g3: scratch - * %g4: AFSR - * %g5: AFAR - * %g6: unused, will have current thread ptr after etrap - * %g7: scratch - */ - .type __cheetah_log_error,#function -__cheetah_log_error: - /* Put "TL1" software bit into AFSR. */ - and %g1, 0x1, %g1 - sllx %g1, 63, %g2 - or %g4, %g2, %g4 - - /* Get log entry pointer for this cpu at this trap level. */ - BRANCH_IF_JALAPENO(g2,g3,50f) - ldxa [%g0] ASI_SAFARI_CONFIG, %g2 - srlx %g2, 17, %g2 - ba,pt %xcc, 60f - and %g2, 0x3ff, %g2 - -50: ldxa [%g0] ASI_JBUS_CONFIG, %g2 - srlx %g2, 17, %g2 - and %g2, 0x1f, %g2 - -60: sllx %g2, 9, %g2 - sethi %hi(cheetah_error_log), %g3 - ldx [%g3 + %lo(cheetah_error_log)], %g3 - brz,pn %g3, 80f - nop - - add %g3, %g2, %g3 - sllx %g1, 8, %g1 - add %g3, %g1, %g1 - - /* %g1 holds pointer to the top of the logging scoreboard */ - ldx [%g1 + 0x0], %g7 - cmp %g7, -1 - bne,pn %xcc, 80f - nop - - stx %g4, [%g1 + 0x0] - stx %g5, [%g1 + 0x8] - add %g1, 0x10, %g1 - - /* %g1 now points to D-cache logging area */ - set 0x3ff8, %g2 /* DC_addr mask */ - and %g5, %g2, %g2 /* DC_addr bits of AFAR */ - srlx %g5, 12, %g3 - or %g3, 1, %g3 /* PHYS tag + valid */ - -10: ldxa [%g2] ASI_DCACHE_TAG, %g7 - cmp %g3, %g7 /* TAG match? */ - bne,pt %xcc, 13f - nop - - /* Yep, what we want, capture state. */ - stx %g2, [%g1 + 0x20] - stx %g7, [%g1 + 0x28] - - /* A membar Sync is required before and after utag access. */ - membar #Sync - ldxa [%g2] ASI_DCACHE_UTAG, %g7 - membar #Sync - stx %g7, [%g1 + 0x30] - ldxa [%g2] ASI_DCACHE_SNOOP_TAG, %g7 - stx %g7, [%g1 + 0x38] - clr %g3 - -12: ldxa [%g2 + %g3] ASI_DCACHE_DATA, %g7 - stx %g7, [%g1] - add %g3, (1 << 5), %g3 - cmp %g3, (4 << 5) - bl,pt %xcc, 12b - add %g1, 0x8, %g1 - - ba,pt %xcc, 20f - add %g1, 0x20, %g1 - -13: sethi %hi(1 << 14), %g7 - add %g2, %g7, %g2 - srlx %g2, 14, %g7 - cmp %g7, 4 - bl,pt %xcc, 10b - nop - - add %g1, 0x40, %g1 - - /* %g1 now points to I-cache logging area */ -20: set 0x1fe0, %g2 /* IC_addr mask */ - and %g5, %g2, %g2 /* IC_addr bits of AFAR */ - sllx %g2, 1, %g2 /* IC_addr[13:6]==VA[12:5] */ - srlx %g5, (13 - 8), %g3 /* Make PTAG */ - andn %g3, 0xff, %g3 /* Mask off undefined bits */ - -21: ldxa [%g2] ASI_IC_TAG, %g7 - andn %g7, 0xff, %g7 - cmp %g3, %g7 - bne,pt %xcc, 23f - nop - - /* Yep, what we want, capture state. */ - stx %g2, [%g1 + 0x40] - stx %g7, [%g1 + 0x48] - add %g2, (1 << 3), %g2 - ldxa [%g2] ASI_IC_TAG, %g7 - add %g2, (1 << 3), %g2 - stx %g7, [%g1 + 0x50] - ldxa [%g2] ASI_IC_TAG, %g7 - add %g2, (1 << 3), %g2 - stx %g7, [%g1 + 0x60] - ldxa [%g2] ASI_IC_TAG, %g7 - stx %g7, [%g1 + 0x68] - sub %g2, (3 << 3), %g2 - ldxa [%g2] ASI_IC_STAG, %g7 - stx %g7, [%g1 + 0x58] - clr %g3 - srlx %g2, 2, %g2 - -22: ldxa [%g2 + %g3] ASI_IC_INSTR, %g7 - stx %g7, [%g1] - add %g3, (1 << 3), %g3 - cmp %g3, (8 << 3) - bl,pt %xcc, 22b - add %g1, 0x8, %g1 - - ba,pt %xcc, 30f - add %g1, 0x30, %g1 - -23: sethi %hi(1 << 14), %g7 - add %g2, %g7, %g2 - srlx %g2, 14, %g7 - cmp %g7, 4 - bl,pt %xcc, 21b - nop - - add %g1, 0x70, %g1 - - /* %g1 now points to E-cache logging area */ -30: andn %g5, (32 - 1), %g2 - stx %g2, [%g1 + 0x20] - ldxa [%g2] ASI_EC_TAG_DATA, %g7 - stx %g7, [%g1 + 0x28] - ldxa [%g2] ASI_EC_R, %g0 - clr %g3 - -31: ldxa [%g3] ASI_EC_DATA, %g7 - stx %g7, [%g1 + %g3] - add %g3, 0x8, %g3 - cmp %g3, 0x20 - - bl,pt %xcc, 31b - nop -80: - rdpr %tt, %g2 - cmp %g2, 0x70 - be c_fast_ecc - cmp %g2, 0x63 - be c_cee - nop - ba,pt %xcc, c_deferred - .size __cheetah_log_error,.-__cheetah_log_error - - /* Cheetah FECC trap handling, we get here from tl{0,1}_fecc - * in the trap table. That code has done a memory barrier - * and has disabled both the I-cache and D-cache in the DCU - * control register. The I-cache is disabled so that we may - * capture the corrupted cache line, and the D-cache is disabled - * because corrupt data may have been placed there and we don't - * want to reference it. - * - * %g1 is one if this trap occurred at %tl >= 1. - * - * Next, we turn off error reporting so that we don't recurse. - */ - .globl cheetah_fast_ecc - .type cheetah_fast_ecc,#function -cheetah_fast_ecc: - ldxa [%g0] ASI_ESTATE_ERROR_EN, %g2 - andn %g2, ESTATE_ERROR_NCEEN | ESTATE_ERROR_CEEN, %g2 - stxa %g2, [%g0] ASI_ESTATE_ERROR_EN - membar #Sync - - /* Fetch and clear AFSR/AFAR */ - ldxa [%g0] ASI_AFSR, %g4 - ldxa [%g0] ASI_AFAR, %g5 - stxa %g4, [%g0] ASI_AFSR - membar #Sync - - ba,pt %xcc, __cheetah_log_error - nop - .size cheetah_fast_ecc,.-cheetah_fast_ecc - - .type c_fast_ecc,#function -c_fast_ecc: - rdpr %pil, %g2 - wrpr %g0, 15, %pil - ba,pt %xcc, etrap_irq - rd %pc, %g7 -#ifdef CONFIG_TRACE_IRQFLAGS - call trace_hardirqs_off - nop -#endif - mov %l4, %o1 - mov %l5, %o2 - call cheetah_fecc_handler - add %sp, PTREGS_OFF, %o0 - ba,a,pt %xcc, rtrap_irq - .size c_fast_ecc,.-c_fast_ecc - - /* Our caller has disabled I-cache and performed membar Sync. */ - .globl cheetah_cee - .type cheetah_cee,#function -cheetah_cee: - ldxa [%g0] ASI_ESTATE_ERROR_EN, %g2 - andn %g2, ESTATE_ERROR_CEEN, %g2 - stxa %g2, [%g0] ASI_ESTATE_ERROR_EN - membar #Sync - - /* Fetch and clear AFSR/AFAR */ - ldxa [%g0] ASI_AFSR, %g4 - ldxa [%g0] ASI_AFAR, %g5 - stxa %g4, [%g0] ASI_AFSR - membar #Sync - - ba,pt %xcc, __cheetah_log_error - nop - .size cheetah_cee,.-cheetah_cee - - .type c_cee,#function -c_cee: - rdpr %pil, %g2 - wrpr %g0, 15, %pil - ba,pt %xcc, etrap_irq - rd %pc, %g7 -#ifdef CONFIG_TRACE_IRQFLAGS - call trace_hardirqs_off - nop -#endif - mov %l4, %o1 - mov %l5, %o2 - call cheetah_cee_handler - add %sp, PTREGS_OFF, %o0 - ba,a,pt %xcc, rtrap_irq - .size c_cee,.-c_cee - - /* Our caller has disabled I-cache+D-cache and performed membar Sync. */ - .globl cheetah_deferred_trap - .type cheetah_deferred_trap,#function -cheetah_deferred_trap: - ldxa [%g0] ASI_ESTATE_ERROR_EN, %g2 - andn %g2, ESTATE_ERROR_NCEEN | ESTATE_ERROR_CEEN, %g2 - stxa %g2, [%g0] ASI_ESTATE_ERROR_EN - membar #Sync - - /* Fetch and clear AFSR/AFAR */ - ldxa [%g0] ASI_AFSR, %g4 - ldxa [%g0] ASI_AFAR, %g5 - stxa %g4, [%g0] ASI_AFSR - membar #Sync - - ba,pt %xcc, __cheetah_log_error - nop - .size cheetah_deferred_trap,.-cheetah_deferred_trap - - .type c_deferred,#function -c_deferred: - rdpr %pil, %g2 - wrpr %g0, 15, %pil - ba,pt %xcc, etrap_irq - rd %pc, %g7 -#ifdef CONFIG_TRACE_IRQFLAGS - call trace_hardirqs_off - nop -#endif - mov %l4, %o1 - mov %l5, %o2 - call cheetah_deferred_handler - add %sp, PTREGS_OFF, %o0 - ba,a,pt %xcc, rtrap_irq - .size c_deferred,.-c_deferred diff --git a/arch/sparc64/kernel/chmc.c b/arch/sparc64/kernel/chmc.c deleted file mode 100644 index 3b9f4d6e14a9..000000000000 --- a/arch/sparc64/kernel/chmc.c +++ /dev/null @@ -1,863 +0,0 @@ -/* chmc.c: Driver for UltraSPARC-III memory controller. - * - * Copyright (C) 2001, 2007, 2008 David S. Miller (davem@davemloft.net) - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/list.h> -#include <linux/string.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/of.h> -#include <linux/of_device.h> -#include <asm/spitfire.h> -#include <asm/chmctrl.h> -#include <asm/cpudata.h> -#include <asm/oplib.h> -#include <asm/prom.h> -#include <asm/head.h> -#include <asm/io.h> -#include <asm/memctrl.h> - -#define DRV_MODULE_NAME "chmc" -#define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "0.2" - -MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); -MODULE_DESCRIPTION("UltraSPARC-III memory controller driver"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(DRV_MODULE_VERSION); - -static int mc_type; -#define MC_TYPE_SAFARI 1 -#define MC_TYPE_JBUS 2 - -static dimm_printer_t us3mc_dimm_printer; - -#define CHMCTRL_NDGRPS 2 -#define CHMCTRL_NDIMMS 4 - -#define CHMC_DIMMS_PER_MC (CHMCTRL_NDGRPS * CHMCTRL_NDIMMS) - -/* OBP memory-layout property format. */ -struct chmc_obp_map { - unsigned char dimm_map[144]; - unsigned char pin_map[576]; -}; - -#define DIMM_LABEL_SZ 8 - -struct chmc_obp_mem_layout { - /* One max 8-byte string label per DIMM. Usually - * this matches the label on the motherboard where - * that DIMM resides. - */ - char dimm_labels[CHMC_DIMMS_PER_MC][DIMM_LABEL_SZ]; - - /* If symmetric use map[0], else it is - * asymmetric and map[1] should be used. - */ - char symmetric; - - struct chmc_obp_map map[2]; -}; - -#define CHMCTRL_NBANKS 4 - -struct chmc_bank_info { - struct chmc *p; - int bank_id; - - u64 raw_reg; - int valid; - int uk; - int um; - int lk; - int lm; - int interleave; - unsigned long base; - unsigned long size; -}; - -struct chmc { - struct list_head list; - int portid; - - struct chmc_obp_mem_layout layout_prop; - int layout_size; - - void __iomem *regs; - - u64 timing_control1; - u64 timing_control2; - u64 timing_control3; - u64 timing_control4; - u64 memaddr_control; - - struct chmc_bank_info logical_banks[CHMCTRL_NBANKS]; -}; - -#define JBUSMC_REGS_SIZE 8 - -#define JB_MC_REG1_DIMM2_BANK3 0x8000000000000000UL -#define JB_MC_REG1_DIMM1_BANK1 0x4000000000000000UL -#define JB_MC_REG1_DIMM2_BANK2 0x2000000000000000UL -#define JB_MC_REG1_DIMM1_BANK0 0x1000000000000000UL -#define JB_MC_REG1_XOR 0x0000010000000000UL -#define JB_MC_REG1_ADDR_GEN_2 0x000000e000000000UL -#define JB_MC_REG1_ADDR_GEN_2_SHIFT 37 -#define JB_MC_REG1_ADDR_GEN_1 0x0000001c00000000UL -#define JB_MC_REG1_ADDR_GEN_1_SHIFT 34 -#define JB_MC_REG1_INTERLEAVE 0x0000000001800000UL -#define JB_MC_REG1_INTERLEAVE_SHIFT 23 -#define JB_MC_REG1_DIMM2_PTYPE 0x0000000000200000UL -#define JB_MC_REG1_DIMM2_PTYPE_SHIFT 21 -#define JB_MC_REG1_DIMM1_PTYPE 0x0000000000100000UL -#define JB_MC_REG1_DIMM1_PTYPE_SHIFT 20 - -#define PART_TYPE_X8 0 -#define PART_TYPE_X4 1 - -#define INTERLEAVE_NONE 0 -#define INTERLEAVE_SAME 1 -#define INTERLEAVE_INTERNAL 2 -#define INTERLEAVE_BOTH 3 - -#define ADDR_GEN_128MB 0 -#define ADDR_GEN_256MB 1 -#define ADDR_GEN_512MB 2 -#define ADDR_GEN_1GB 3 - -#define JB_NUM_DIMM_GROUPS 2 -#define JB_NUM_DIMMS_PER_GROUP 2 -#define JB_NUM_DIMMS (JB_NUM_DIMM_GROUPS * JB_NUM_DIMMS_PER_GROUP) - -struct jbusmc_obp_map { - unsigned char dimm_map[18]; - unsigned char pin_map[144]; -}; - -struct jbusmc_obp_mem_layout { - /* One max 8-byte string label per DIMM. Usually - * this matches the label on the motherboard where - * that DIMM resides. - */ - char dimm_labels[JB_NUM_DIMMS][DIMM_LABEL_SZ]; - - /* If symmetric use map[0], else it is - * asymmetric and map[1] should be used. - */ - char symmetric; - - struct jbusmc_obp_map map; - - char _pad; -}; - -struct jbusmc_dimm_group { - struct jbusmc *controller; - int index; - u64 base_addr; - u64 size; -}; - -struct jbusmc { - void __iomem *regs; - u64 mc_reg_1; - u32 portid; - struct jbusmc_obp_mem_layout layout; - int layout_len; - int num_dimm_groups; - struct jbusmc_dimm_group dimm_groups[JB_NUM_DIMM_GROUPS]; - struct list_head list; -}; - -static DEFINE_SPINLOCK(mctrl_list_lock); -static LIST_HEAD(mctrl_list); - -static void mc_list_add(struct list_head *list) -{ - spin_lock(&mctrl_list_lock); - list_add(list, &mctrl_list); - spin_unlock(&mctrl_list_lock); -} - -static void mc_list_del(struct list_head *list) -{ - spin_lock(&mctrl_list_lock); - list_del_init(list); - spin_unlock(&mctrl_list_lock); -} - -#define SYNDROME_MIN -1 -#define SYNDROME_MAX 144 - -/* Covert syndrome code into the way the bits are positioned - * on the bus. - */ -static int syndrome_to_qword_code(int syndrome_code) -{ - if (syndrome_code < 128) - syndrome_code += 16; - else if (syndrome_code < 128 + 9) - syndrome_code -= (128 - 7); - else if (syndrome_code < (128 + 9 + 3)) - syndrome_code -= (128 + 9 - 4); - else - syndrome_code -= (128 + 9 + 3); - return syndrome_code; -} - -/* All this magic has to do with how a cache line comes over the wire - * on Safari and JBUS. A 64-bit line comes over in 1 or more quadword - * cycles, each of which transmit ECC/MTAG info as well as the actual - * data. - */ -#define L2_LINE_SIZE 64 -#define L2_LINE_ADDR_MSK (L2_LINE_SIZE - 1) -#define QW_PER_LINE 4 -#define QW_BYTES (L2_LINE_SIZE / QW_PER_LINE) -#define QW_BITS 144 -#define SAFARI_LAST_BIT (576 - 1) -#define JBUS_LAST_BIT (144 - 1) - -static void get_pin_and_dimm_str(int syndrome_code, unsigned long paddr, - int *pin_p, char **dimm_str_p, void *_prop, - int base_dimm_offset) -{ - int qword_code = syndrome_to_qword_code(syndrome_code); - int cache_line_offset; - int offset_inverse; - int dimm_map_index; - int map_val; - - if (mc_type == MC_TYPE_JBUS) { - struct jbusmc_obp_mem_layout *p = _prop; - - /* JBUS */ - cache_line_offset = qword_code; - offset_inverse = (JBUS_LAST_BIT - cache_line_offset); - dimm_map_index = offset_inverse / 8; - map_val = p->map.dimm_map[dimm_map_index]; - map_val = ((map_val >> ((7 - (offset_inverse & 7)))) & 1); - *dimm_str_p = p->dimm_labels[base_dimm_offset + map_val]; - *pin_p = p->map.pin_map[cache_line_offset]; - } else { - struct chmc_obp_mem_layout *p = _prop; - struct chmc_obp_map *mp; - int qword; - - /* Safari */ - if (p->symmetric) - mp = &p->map[0]; - else - mp = &p->map[1]; - - qword = (paddr & L2_LINE_ADDR_MSK) / QW_BYTES; - cache_line_offset = ((3 - qword) * QW_BITS) + qword_code; - offset_inverse = (SAFARI_LAST_BIT - cache_line_offset); - dimm_map_index = offset_inverse >> 2; - map_val = mp->dimm_map[dimm_map_index]; - map_val = ((map_val >> ((3 - (offset_inverse & 3)) << 1)) & 0x3); - *dimm_str_p = p->dimm_labels[base_dimm_offset + map_val]; - *pin_p = mp->pin_map[cache_line_offset]; - } -} - -static struct jbusmc_dimm_group *jbusmc_find_dimm_group(unsigned long phys_addr) -{ - struct jbusmc *p; - - list_for_each_entry(p, &mctrl_list, list) { - int i; - - for (i = 0; i < p->num_dimm_groups; i++) { - struct jbusmc_dimm_group *dp = &p->dimm_groups[i]; - - if (phys_addr < dp->base_addr || - (dp->base_addr + dp->size) <= phys_addr) - continue; - - return dp; - } - } - return NULL; -} - -static int jbusmc_print_dimm(int syndrome_code, - unsigned long phys_addr, - char *buf, int buflen) -{ - struct jbusmc_obp_mem_layout *prop; - struct jbusmc_dimm_group *dp; - struct jbusmc *p; - int first_dimm; - - dp = jbusmc_find_dimm_group(phys_addr); - if (dp == NULL || - syndrome_code < SYNDROME_MIN || - syndrome_code > SYNDROME_MAX) { - buf[0] = '?'; - buf[1] = '?'; - buf[2] = '?'; - buf[3] = '\0'; - } - p = dp->controller; - prop = &p->layout; - - first_dimm = dp->index * JB_NUM_DIMMS_PER_GROUP; - - if (syndrome_code != SYNDROME_MIN) { - char *dimm_str; - int pin; - - get_pin_and_dimm_str(syndrome_code, phys_addr, &pin, - &dimm_str, prop, first_dimm); - sprintf(buf, "%s, pin %3d", dimm_str, pin); - } else { - int dimm; - - /* Multi-bit error, we just dump out all the - * dimm labels associated with this dimm group. - */ - for (dimm = 0; dimm < JB_NUM_DIMMS_PER_GROUP; dimm++) { - sprintf(buf, "%s ", - prop->dimm_labels[first_dimm + dimm]); - buf += strlen(buf); - } - } - - return 0; -} - -static u64 __devinit jbusmc_dimm_group_size(u64 base, - const struct linux_prom64_registers *mem_regs, - int num_mem_regs) -{ - u64 max = base + (8UL * 1024 * 1024 * 1024); - u64 max_seen = base; - int i; - - for (i = 0; i < num_mem_regs; i++) { - const struct linux_prom64_registers *ent; - u64 this_base; - u64 this_end; - - ent = &mem_regs[i]; - this_base = ent->phys_addr; - this_end = this_base + ent->reg_size; - if (base < this_base || base >= this_end) - continue; - if (this_end > max) - this_end = max; - if (this_end > max_seen) - max_seen = this_end; - } - - return max_seen - base; -} - -static void __devinit jbusmc_construct_one_dimm_group(struct jbusmc *p, - unsigned long index, - const struct linux_prom64_registers *mem_regs, - int num_mem_regs) -{ - struct jbusmc_dimm_group *dp = &p->dimm_groups[index]; - - dp->controller = p; - dp->index = index; - - dp->base_addr = (p->portid * (64UL * 1024 * 1024 * 1024)); - dp->base_addr += (index * (8UL * 1024 * 1024 * 1024)); - dp->size = jbusmc_dimm_group_size(dp->base_addr, mem_regs, num_mem_regs); -} - -static void __devinit jbusmc_construct_dimm_groups(struct jbusmc *p, - const struct linux_prom64_registers *mem_regs, - int num_mem_regs) -{ - if (p->mc_reg_1 & JB_MC_REG1_DIMM1_BANK0) { - jbusmc_construct_one_dimm_group(p, 0, mem_regs, num_mem_regs); - p->num_dimm_groups++; - } - if (p->mc_reg_1 & JB_MC_REG1_DIMM2_BANK2) { - jbusmc_construct_one_dimm_group(p, 1, mem_regs, num_mem_regs); - p->num_dimm_groups++; - } -} - -static int __devinit jbusmc_probe(struct of_device *op, - const struct of_device_id *match) -{ - const struct linux_prom64_registers *mem_regs; - struct device_node *mem_node; - int err, len, num_mem_regs; - struct jbusmc *p; - const u32 *prop; - const void *ml; - - err = -ENODEV; - mem_node = of_find_node_by_path("/memory"); - if (!mem_node) { - printk(KERN_ERR PFX "Cannot find /memory node.\n"); - goto out; - } - mem_regs = of_get_property(mem_node, "reg", &len); - if (!mem_regs) { - printk(KERN_ERR PFX "Cannot get reg property of /memory node.\n"); - goto out; - } - num_mem_regs = len / sizeof(*mem_regs); - - err = -ENOMEM; - p = kzalloc(sizeof(*p), GFP_KERNEL); - if (!p) { - printk(KERN_ERR PFX "Cannot allocate struct jbusmc.\n"); - goto out; - } - - INIT_LIST_HEAD(&p->list); - - err = -ENODEV; - prop = of_get_property(op->node, "portid", &len); - if (!prop || len != 4) { - printk(KERN_ERR PFX "Cannot find portid.\n"); - goto out_free; - } - - p->portid = *prop; - - prop = of_get_property(op->node, "memory-control-register-1", &len); - if (!prop || len != 8) { - printk(KERN_ERR PFX "Cannot get memory control register 1.\n"); - goto out_free; - } - - p->mc_reg_1 = ((u64)prop[0] << 32) | (u64) prop[1]; - - err = -ENOMEM; - p->regs = of_ioremap(&op->resource[0], 0, JBUSMC_REGS_SIZE, "jbusmc"); - if (!p->regs) { - printk(KERN_ERR PFX "Cannot map jbusmc regs.\n"); - goto out_free; - } - - err = -ENODEV; - ml = of_get_property(op->node, "memory-layout", &p->layout_len); - if (!ml) { - printk(KERN_ERR PFX "Cannot get memory layout property.\n"); - goto out_iounmap; - } - if (p->layout_len > sizeof(p->layout)) { - printk(KERN_ERR PFX "Unexpected memory-layout size %d\n", - p->layout_len); - goto out_iounmap; - } - memcpy(&p->layout, ml, p->layout_len); - - jbusmc_construct_dimm_groups(p, mem_regs, num_mem_regs); - - mc_list_add(&p->list); - - printk(KERN_INFO PFX "UltraSPARC-IIIi memory controller at %s\n", - op->node->full_name); - - dev_set_drvdata(&op->dev, p); - - err = 0; - -out: - return err; - -out_iounmap: - of_iounmap(&op->resource[0], p->regs, JBUSMC_REGS_SIZE); - -out_free: - kfree(p); - goto out; -} - -/* Does BANK decode PHYS_ADDR? */ -static int chmc_bank_match(struct chmc_bank_info *bp, unsigned long phys_addr) -{ - unsigned long upper_bits = (phys_addr & PA_UPPER_BITS) >> PA_UPPER_BITS_SHIFT; - unsigned long lower_bits = (phys_addr & PA_LOWER_BITS) >> PA_LOWER_BITS_SHIFT; - - /* Bank must be enabled to match. */ - if (bp->valid == 0) - return 0; - - /* Would BANK match upper bits? */ - upper_bits ^= bp->um; /* What bits are different? */ - upper_bits = ~upper_bits; /* Invert. */ - upper_bits |= bp->uk; /* What bits don't matter for matching? */ - upper_bits = ~upper_bits; /* Invert. */ - - if (upper_bits) - return 0; - - /* Would BANK match lower bits? */ - lower_bits ^= bp->lm; /* What bits are different? */ - lower_bits = ~lower_bits; /* Invert. */ - lower_bits |= bp->lk; /* What bits don't matter for matching? */ - lower_bits = ~lower_bits; /* Invert. */ - - if (lower_bits) - return 0; - - /* I always knew you'd be the one. */ - return 1; -} - -/* Given PHYS_ADDR, search memory controller banks for a match. */ -static struct chmc_bank_info *chmc_find_bank(unsigned long phys_addr) -{ - struct chmc *p; - - list_for_each_entry(p, &mctrl_list, list) { - int bank_no; - - for (bank_no = 0; bank_no < CHMCTRL_NBANKS; bank_no++) { - struct chmc_bank_info *bp; - - bp = &p->logical_banks[bank_no]; - if (chmc_bank_match(bp, phys_addr)) - return bp; - } - } - - return NULL; -} - -/* This is the main purpose of this driver. */ -static int chmc_print_dimm(int syndrome_code, - unsigned long phys_addr, - char *buf, int buflen) -{ - struct chmc_bank_info *bp; - struct chmc_obp_mem_layout *prop; - int bank_in_controller, first_dimm; - - bp = chmc_find_bank(phys_addr); - if (bp == NULL || - syndrome_code < SYNDROME_MIN || - syndrome_code > SYNDROME_MAX) { - buf[0] = '?'; - buf[1] = '?'; - buf[2] = '?'; - buf[3] = '\0'; - return 0; - } - - prop = &bp->p->layout_prop; - bank_in_controller = bp->bank_id & (CHMCTRL_NBANKS - 1); - first_dimm = (bank_in_controller & (CHMCTRL_NDGRPS - 1)); - first_dimm *= CHMCTRL_NDIMMS; - - if (syndrome_code != SYNDROME_MIN) { - char *dimm_str; - int pin; - - get_pin_and_dimm_str(syndrome_code, phys_addr, &pin, - &dimm_str, prop, first_dimm); - sprintf(buf, "%s, pin %3d", dimm_str, pin); - } else { - int dimm; - - /* Multi-bit error, we just dump out all the - * dimm labels associated with this bank. - */ - for (dimm = 0; dimm < CHMCTRL_NDIMMS; dimm++) { - sprintf(buf, "%s ", - prop->dimm_labels[first_dimm + dimm]); - buf += strlen(buf); - } - } - return 0; -} - -/* Accessing the registers is slightly complicated. If you want - * to get at the memory controller which is on the same processor - * the code is executing, you must use special ASI load/store else - * you go through the global mapping. - */ -static u64 chmc_read_mcreg(struct chmc *p, unsigned long offset) -{ - unsigned long ret, this_cpu; - - preempt_disable(); - - this_cpu = real_hard_smp_processor_id(); - - if (p->portid == this_cpu) { - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=r" (ret) - : "r" (offset), "i" (ASI_MCU_CTRL_REG)); - } else { - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=r" (ret) - : "r" (p->regs + offset), - "i" (ASI_PHYS_BYPASS_EC_E)); - } - - preempt_enable(); - - return ret; -} - -#if 0 /* currently unused */ -static void chmc_write_mcreg(struct chmc *p, unsigned long offset, u64 val) -{ - if (p->portid == smp_processor_id()) { - __asm__ __volatile__("stxa %0, [%1] %2" - : : "r" (val), - "r" (offset), "i" (ASI_MCU_CTRL_REG)); - } else { - __asm__ __volatile__("ldxa %0, [%1] %2" - : : "r" (val), - "r" (p->regs + offset), - "i" (ASI_PHYS_BYPASS_EC_E)); - } -} -#endif - -static void chmc_interpret_one_decode_reg(struct chmc *p, int which_bank, u64 val) -{ - struct chmc_bank_info *bp = &p->logical_banks[which_bank]; - - bp->p = p; - bp->bank_id = (CHMCTRL_NBANKS * p->portid) + which_bank; - bp->raw_reg = val; - bp->valid = (val & MEM_DECODE_VALID) >> MEM_DECODE_VALID_SHIFT; - bp->uk = (val & MEM_DECODE_UK) >> MEM_DECODE_UK_SHIFT; - bp->um = (val & MEM_DECODE_UM) >> MEM_DECODE_UM_SHIFT; - bp->lk = (val & MEM_DECODE_LK) >> MEM_DECODE_LK_SHIFT; - bp->lm = (val & MEM_DECODE_LM) >> MEM_DECODE_LM_SHIFT; - - bp->base = (bp->um); - bp->base &= ~(bp->uk); - bp->base <<= PA_UPPER_BITS_SHIFT; - - switch(bp->lk) { - case 0xf: - default: - bp->interleave = 1; - break; - - case 0xe: - bp->interleave = 2; - break; - - case 0xc: - bp->interleave = 4; - break; - - case 0x8: - bp->interleave = 8; - break; - - case 0x0: - bp->interleave = 16; - break; - }; - - /* UK[10] is reserved, and UK[11] is not set for the SDRAM - * bank size definition. - */ - bp->size = (((unsigned long)bp->uk & - ((1UL << 10UL) - 1UL)) + 1UL) << PA_UPPER_BITS_SHIFT; - bp->size /= bp->interleave; -} - -static void chmc_fetch_decode_regs(struct chmc *p) -{ - if (p->layout_size == 0) - return; - - chmc_interpret_one_decode_reg(p, 0, - chmc_read_mcreg(p, CHMCTRL_DECODE1)); - chmc_interpret_one_decode_reg(p, 1, - chmc_read_mcreg(p, CHMCTRL_DECODE2)); - chmc_interpret_one_decode_reg(p, 2, - chmc_read_mcreg(p, CHMCTRL_DECODE3)); - chmc_interpret_one_decode_reg(p, 3, - chmc_read_mcreg(p, CHMCTRL_DECODE4)); -} - -static int __devinit chmc_probe(struct of_device *op, - const struct of_device_id *match) -{ - struct device_node *dp = op->node; - unsigned long ver; - const void *pval; - int len, portid; - struct chmc *p; - int err; - - err = -ENODEV; - __asm__ ("rdpr %%ver, %0" : "=r" (ver)); - if ((ver >> 32UL) == __JALAPENO_ID || - (ver >> 32UL) == __SERRANO_ID) - goto out; - - portid = of_getintprop_default(dp, "portid", -1); - if (portid == -1) - goto out; - - pval = of_get_property(dp, "memory-layout", &len); - if (pval && len > sizeof(p->layout_prop)) { - printk(KERN_ERR PFX "Unexpected memory-layout property " - "size %d.\n", len); - goto out; - } - - err = -ENOMEM; - p = kzalloc(sizeof(*p), GFP_KERNEL); - if (!p) { - printk(KERN_ERR PFX "Could not allocate struct chmc.\n"); - goto out; - } - - p->portid = portid; - p->layout_size = len; - if (!pval) - p->layout_size = 0; - else - memcpy(&p->layout_prop, pval, len); - - p->regs = of_ioremap(&op->resource[0], 0, 0x48, "chmc"); - if (!p->regs) { - printk(KERN_ERR PFX "Could not map registers.\n"); - goto out_free; - } - - if (p->layout_size != 0UL) { - p->timing_control1 = chmc_read_mcreg(p, CHMCTRL_TCTRL1); - p->timing_control2 = chmc_read_mcreg(p, CHMCTRL_TCTRL2); - p->timing_control3 = chmc_read_mcreg(p, CHMCTRL_TCTRL3); - p->timing_control4 = chmc_read_mcreg(p, CHMCTRL_TCTRL4); - p->memaddr_control = chmc_read_mcreg(p, CHMCTRL_MACTRL); - } - - chmc_fetch_decode_regs(p); - - mc_list_add(&p->list); - - printk(KERN_INFO PFX "UltraSPARC-III memory controller at %s [%s]\n", - dp->full_name, - (p->layout_size ? "ACTIVE" : "INACTIVE")); - - dev_set_drvdata(&op->dev, p); - - err = 0; - -out: - return err; - -out_free: - kfree(p); - goto out; -} - -static int __devinit us3mc_probe(struct of_device *op, - const struct of_device_id *match) -{ - if (mc_type == MC_TYPE_SAFARI) - return chmc_probe(op, match); - else if (mc_type == MC_TYPE_JBUS) - return jbusmc_probe(op, match); - return -ENODEV; -} - -static void __devexit chmc_destroy(struct of_device *op, struct chmc *p) -{ - list_del(&p->list); - of_iounmap(&op->resource[0], p->regs, 0x48); - kfree(p); -} - -static void __devexit jbusmc_destroy(struct of_device *op, struct jbusmc *p) -{ - mc_list_del(&p->list); - of_iounmap(&op->resource[0], p->regs, JBUSMC_REGS_SIZE); - kfree(p); -} - -static int __devexit us3mc_remove(struct of_device *op) -{ - void *p = dev_get_drvdata(&op->dev); - - if (p) { - if (mc_type == MC_TYPE_SAFARI) - chmc_destroy(op, p); - else if (mc_type == MC_TYPE_JBUS) - jbusmc_destroy(op, p); - } - return 0; -} - -static const struct of_device_id us3mc_match[] = { - { - .name = "memory-controller", - }, - {}, -}; -MODULE_DEVICE_TABLE(of, us3mc_match); - -static struct of_platform_driver us3mc_driver = { - .name = "us3mc", - .match_table = us3mc_match, - .probe = us3mc_probe, - .remove = __devexit_p(us3mc_remove), -}; - -static inline bool us3mc_platform(void) -{ - if (tlb_type == cheetah || tlb_type == cheetah_plus) - return true; - return false; -} - -static int __init us3mc_init(void) -{ - unsigned long ver; - int ret; - - if (!us3mc_platform()) - return -ENODEV; - - __asm__ __volatile__("rdpr %%ver, %0" : "=r" (ver)); - if ((ver >> 32UL) == __JALAPENO_ID || - (ver >> 32UL) == __SERRANO_ID) { - mc_type = MC_TYPE_JBUS; - us3mc_dimm_printer = jbusmc_print_dimm; - } else { - mc_type = MC_TYPE_SAFARI; - us3mc_dimm_printer = chmc_print_dimm; - } - - ret = register_dimm_printer(us3mc_dimm_printer); - - if (!ret) { - ret = of_register_driver(&us3mc_driver, &of_bus_type); - if (ret) - unregister_dimm_printer(us3mc_dimm_printer); - } - return ret; -} - -static void __exit us3mc_cleanup(void) -{ - if (us3mc_platform()) { - unregister_dimm_printer(us3mc_dimm_printer); - of_unregister_driver(&us3mc_driver); - } -} - -module_init(us3mc_init); -module_exit(us3mc_cleanup); diff --git a/arch/sparc64/kernel/compat_audit.c b/arch/sparc64/kernel/compat_audit.c deleted file mode 100644 index c831b0a4e660..000000000000 --- a/arch/sparc64/kernel/compat_audit.c +++ /dev/null @@ -1,42 +0,0 @@ -#include <asm/unistd_32.h> - -unsigned sparc32_dir_class[] = { -#include <asm-generic/audit_dir_write.h> -~0U -}; - -unsigned sparc32_chattr_class[] = { -#include <asm-generic/audit_change_attr.h> -~0U -}; - -unsigned sparc32_write_class[] = { -#include <asm-generic/audit_write.h> -~0U -}; - -unsigned sparc32_read_class[] = { -#include <asm-generic/audit_read.h> -~0U -}; - -unsigned sparc32_signal_class[] = { -#include <asm-generic/audit_signal.h> -~0U -}; - -int sparc32_classify_syscall(unsigned syscall) -{ - switch(syscall) { - case __NR_open: - return 2; - case __NR_openat: - return 3; - case __NR_socketcall: - return 4; - case __NR_execve: - return 5; - default: - return 1; - } -} diff --git a/arch/sparc64/kernel/cpu.c b/arch/sparc64/kernel/cpu.c deleted file mode 100644 index 0c9ac83ed0a8..000000000000 --- a/arch/sparc64/kernel/cpu.c +++ /dev/null @@ -1,166 +0,0 @@ -/* cpu.c: Dinky routines to look for the kind of Sparc cpu - * we are on. - * - * Copyright (C) 1996, 2007, 2008 David S. Miller (davem@davemloft.net) - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <asm/asi.h> -#include <asm/system.h> -#include <asm/fpumacro.h> -#include <asm/cpudata.h> -#include <asm/spitfire.h> -#include <asm/oplib.h> - -#include "entry.h" - -DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 }; - -struct cpu_chip_info { - unsigned short manuf; - unsigned short impl; - const char *cpu_name; - const char *fp_name; -}; - -static const struct cpu_chip_info cpu_chips[] = { - { - .manuf = 0x17, - .impl = 0x10, - .cpu_name = "TI UltraSparc I (SpitFire)", - .fp_name = "UltraSparc I integrated FPU", - }, - { - .manuf = 0x22, - .impl = 0x10, - .cpu_name = "TI UltraSparc I (SpitFire)", - .fp_name = "UltraSparc I integrated FPU", - }, - { - .manuf = 0x17, - .impl = 0x11, - .cpu_name = "TI UltraSparc II (BlackBird)", - .fp_name = "UltraSparc II integrated FPU", - }, - { - .manuf = 0x17, - .impl = 0x12, - .cpu_name = "TI UltraSparc IIi (Sabre)", - .fp_name = "UltraSparc IIi integrated FPU", - }, - { - .manuf = 0x17, - .impl = 0x13, - .cpu_name = "TI UltraSparc IIe (Hummingbird)", - .fp_name = "UltraSparc IIe integrated FPU", - }, - { - .manuf = 0x3e, - .impl = 0x14, - .cpu_name = "TI UltraSparc III (Cheetah)", - .fp_name = "UltraSparc III integrated FPU", - }, - { - .manuf = 0x3e, - .impl = 0x15, - .cpu_name = "TI UltraSparc III+ (Cheetah+)", - .fp_name = "UltraSparc III+ integrated FPU", - }, - { - .manuf = 0x3e, - .impl = 0x16, - .cpu_name = "TI UltraSparc IIIi (Jalapeno)", - .fp_name = "UltraSparc IIIi integrated FPU", - }, - { - .manuf = 0x3e, - .impl = 0x18, - .cpu_name = "TI UltraSparc IV (Jaguar)", - .fp_name = "UltraSparc IV integrated FPU", - }, - { - .manuf = 0x3e, - .impl = 0x19, - .cpu_name = "TI UltraSparc IV+ (Panther)", - .fp_name = "UltraSparc IV+ integrated FPU", - }, - { - .manuf = 0x3e, - .impl = 0x22, - .cpu_name = "TI UltraSparc IIIi+ (Serrano)", - .fp_name = "UltraSparc IIIi+ integrated FPU", - }, -}; - -#define NSPARCCHIPS ARRAY_SIZE(linux_sparc_chips) - -const char *sparc_cpu_type; -const char *sparc_fpu_type; - -static void __init sun4v_cpu_probe(void) -{ - switch (sun4v_chip_type) { - case SUN4V_CHIP_NIAGARA1: - sparc_cpu_type = "UltraSparc T1 (Niagara)"; - sparc_fpu_type = "UltraSparc T1 integrated FPU"; - break; - - case SUN4V_CHIP_NIAGARA2: - sparc_cpu_type = "UltraSparc T2 (Niagara2)"; - sparc_fpu_type = "UltraSparc T2 integrated FPU"; - break; - - default: - printk(KERN_WARNING "CPU: Unknown sun4v cpu type [%s]\n", - prom_cpu_compatible); - sparc_cpu_type = "Unknown SUN4V CPU"; - sparc_fpu_type = "Unknown SUN4V FPU"; - break; - } -} - -static const struct cpu_chip_info * __init find_cpu_chip(unsigned short manuf, - unsigned short impl) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(cpu_chips); i++) { - const struct cpu_chip_info *p = &cpu_chips[i]; - - if (p->manuf == manuf && p->impl == impl) - return p; - } - return NULL; -} - -static int __init cpu_type_probe(void) -{ - if (tlb_type == hypervisor) { - sun4v_cpu_probe(); - } else { - unsigned long ver, manuf, impl; - const struct cpu_chip_info *p; - - __asm__ __volatile__("rdpr %%ver, %0" : "=r" (ver)); - - manuf = ((ver >> 48) & 0xffff); - impl = ((ver >> 32) & 0xffff); - - p = find_cpu_chip(manuf, impl); - if (p) { - sparc_cpu_type = p->cpu_name; - sparc_fpu_type = p->fp_name; - } else { - printk(KERN_ERR "CPU: Unknown chip, manuf[%lx] impl[%lx]\n", - manuf, impl); - sparc_cpu_type = "Unknown CPU"; - sparc_fpu_type = "Unknown FPU"; - } - } - return 0; -} - -arch_initcall(cpu_type_probe); diff --git a/arch/sparc64/kernel/ds.c b/arch/sparc64/kernel/ds.c deleted file mode 100644 index f52e0534d91d..000000000000 --- a/arch/sparc64/kernel/ds.c +++ /dev/null @@ -1,1244 +0,0 @@ -/* ds.c: Domain Services driver for Logical Domains - * - * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net> - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/sched.h> -#include <linux/delay.h> -#include <linux/mutex.h> -#include <linux/kthread.h> -#include <linux/reboot.h> -#include <linux/cpu.h> - -#include <asm/ldc.h> -#include <asm/vio.h> -#include <asm/mdesc.h> -#include <asm/head.h> -#include <asm/irq.h> - -#define DRV_MODULE_NAME "ds" -#define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "1.0" -#define DRV_MODULE_RELDATE "Jul 11, 2007" - -static char version[] __devinitdata = - DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; -MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); -MODULE_DESCRIPTION("Sun LDOM domain services driver"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(DRV_MODULE_VERSION); - -struct ds_msg_tag { - __u32 type; -#define DS_INIT_REQ 0x00 -#define DS_INIT_ACK 0x01 -#define DS_INIT_NACK 0x02 -#define DS_REG_REQ 0x03 -#define DS_REG_ACK 0x04 -#define DS_REG_NACK 0x05 -#define DS_UNREG_REQ 0x06 -#define DS_UNREG_ACK 0x07 -#define DS_UNREG_NACK 0x08 -#define DS_DATA 0x09 -#define DS_NACK 0x0a - - __u32 len; -}; - -/* Result codes */ -#define DS_OK 0x00 -#define DS_REG_VER_NACK 0x01 -#define DS_REG_DUP 0x02 -#define DS_INV_HDL 0x03 -#define DS_TYPE_UNKNOWN 0x04 - -struct ds_version { - __u16 major; - __u16 minor; -}; - -struct ds_ver_req { - struct ds_msg_tag tag; - struct ds_version ver; -}; - -struct ds_ver_ack { - struct ds_msg_tag tag; - __u16 minor; -}; - -struct ds_ver_nack { - struct ds_msg_tag tag; - __u16 major; -}; - -struct ds_reg_req { - struct ds_msg_tag tag; - __u64 handle; - __u16 major; - __u16 minor; - char svc_id[0]; -}; - -struct ds_reg_ack { - struct ds_msg_tag tag; - __u64 handle; - __u16 minor; -}; - -struct ds_reg_nack { - struct ds_msg_tag tag; - __u64 handle; - __u16 major; -}; - -struct ds_unreg_req { - struct ds_msg_tag tag; - __u64 handle; -}; - -struct ds_unreg_ack { - struct ds_msg_tag tag; - __u64 handle; -}; - -struct ds_unreg_nack { - struct ds_msg_tag tag; - __u64 handle; -}; - -struct ds_data { - struct ds_msg_tag tag; - __u64 handle; -}; - -struct ds_data_nack { - struct ds_msg_tag tag; - __u64 handle; - __u64 result; -}; - -struct ds_info; -struct ds_cap_state { - __u64 handle; - - void (*data)(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len); - - const char *service_id; - - u8 state; -#define CAP_STATE_UNKNOWN 0x00 -#define CAP_STATE_REG_SENT 0x01 -#define CAP_STATE_REGISTERED 0x02 -}; - -static void md_update_data(struct ds_info *dp, struct ds_cap_state *cp, - void *buf, int len); -static void domain_shutdown_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len); -static void domain_panic_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len); -#ifdef CONFIG_HOTPLUG_CPU -static void dr_cpu_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len); -#endif -static void ds_pri_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len); -static void ds_var_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len); - -static struct ds_cap_state ds_states_template[] = { - { - .service_id = "md-update", - .data = md_update_data, - }, - { - .service_id = "domain-shutdown", - .data = domain_shutdown_data, - }, - { - .service_id = "domain-panic", - .data = domain_panic_data, - }, -#ifdef CONFIG_HOTPLUG_CPU - { - .service_id = "dr-cpu", - .data = dr_cpu_data, - }, -#endif - { - .service_id = "pri", - .data = ds_pri_data, - }, - { - .service_id = "var-config", - .data = ds_var_data, - }, - { - .service_id = "var-config-backup", - .data = ds_var_data, - }, -}; - -static DEFINE_SPINLOCK(ds_lock); - -struct ds_info { - struct ldc_channel *lp; - u8 hs_state; -#define DS_HS_START 0x01 -#define DS_HS_DONE 0x02 - - u64 id; - - void *rcv_buf; - int rcv_buf_len; - - struct ds_cap_state *ds_states; - int num_ds_states; - - struct ds_info *next; -}; - -static struct ds_info *ds_info_list; - -static struct ds_cap_state *find_cap(struct ds_info *dp, u64 handle) -{ - unsigned int index = handle >> 32; - - if (index >= dp->num_ds_states) - return NULL; - return &dp->ds_states[index]; -} - -static struct ds_cap_state *find_cap_by_string(struct ds_info *dp, - const char *name) -{ - int i; - - for (i = 0; i < dp->num_ds_states; i++) { - if (strcmp(dp->ds_states[i].service_id, name)) - continue; - - return &dp->ds_states[i]; - } - return NULL; -} - -static int __ds_send(struct ldc_channel *lp, void *data, int len) -{ - int err, limit = 1000; - - err = -EINVAL; - while (limit-- > 0) { - err = ldc_write(lp, data, len); - if (!err || (err != -EAGAIN)) - break; - udelay(1); - } - - return err; -} - -static int ds_send(struct ldc_channel *lp, void *data, int len) -{ - unsigned long flags; - int err; - - spin_lock_irqsave(&ds_lock, flags); - err = __ds_send(lp, data, len); - spin_unlock_irqrestore(&ds_lock, flags); - - return err; -} - -struct ds_md_update_req { - __u64 req_num; -}; - -struct ds_md_update_res { - __u64 req_num; - __u32 result; -}; - -static void md_update_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len) -{ - struct ldc_channel *lp = dp->lp; - struct ds_data *dpkt = buf; - struct ds_md_update_req *rp; - struct { - struct ds_data data; - struct ds_md_update_res res; - } pkt; - - rp = (struct ds_md_update_req *) (dpkt + 1); - - printk(KERN_INFO "ds-%lu: Machine description update.\n", dp->id); - - mdesc_update(); - - memset(&pkt, 0, sizeof(pkt)); - pkt.data.tag.type = DS_DATA; - pkt.data.tag.len = sizeof(pkt) - sizeof(struct ds_msg_tag); - pkt.data.handle = cp->handle; - pkt.res.req_num = rp->req_num; - pkt.res.result = DS_OK; - - ds_send(lp, &pkt, sizeof(pkt)); -} - -struct ds_shutdown_req { - __u64 req_num; - __u32 ms_delay; -}; - -struct ds_shutdown_res { - __u64 req_num; - __u32 result; - char reason[1]; -}; - -static void domain_shutdown_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len) -{ - struct ldc_channel *lp = dp->lp; - struct ds_data *dpkt = buf; - struct ds_shutdown_req *rp; - struct { - struct ds_data data; - struct ds_shutdown_res res; - } pkt; - - rp = (struct ds_shutdown_req *) (dpkt + 1); - - printk(KERN_ALERT "ds-%lu: Shutdown request from " - "LDOM manager received.\n", dp->id); - - memset(&pkt, 0, sizeof(pkt)); - pkt.data.tag.type = DS_DATA; - pkt.data.tag.len = sizeof(pkt) - sizeof(struct ds_msg_tag); - pkt.data.handle = cp->handle; - pkt.res.req_num = rp->req_num; - pkt.res.result = DS_OK; - pkt.res.reason[0] = 0; - - ds_send(lp, &pkt, sizeof(pkt)); - - orderly_poweroff(true); -} - -struct ds_panic_req { - __u64 req_num; -}; - -struct ds_panic_res { - __u64 req_num; - __u32 result; - char reason[1]; -}; - -static void domain_panic_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len) -{ - struct ldc_channel *lp = dp->lp; - struct ds_data *dpkt = buf; - struct ds_panic_req *rp; - struct { - struct ds_data data; - struct ds_panic_res res; - } pkt; - - rp = (struct ds_panic_req *) (dpkt + 1); - - printk(KERN_ALERT "ds-%lu: Panic request from " - "LDOM manager received.\n", dp->id); - - memset(&pkt, 0, sizeof(pkt)); - pkt.data.tag.type = DS_DATA; - pkt.data.tag.len = sizeof(pkt) - sizeof(struct ds_msg_tag); - pkt.data.handle = cp->handle; - pkt.res.req_num = rp->req_num; - pkt.res.result = DS_OK; - pkt.res.reason[0] = 0; - - ds_send(lp, &pkt, sizeof(pkt)); - - panic("PANIC requested by LDOM manager."); -} - -#ifdef CONFIG_HOTPLUG_CPU -struct dr_cpu_tag { - __u64 req_num; - __u32 type; -#define DR_CPU_CONFIGURE 0x43 -#define DR_CPU_UNCONFIGURE 0x55 -#define DR_CPU_FORCE_UNCONFIGURE 0x46 -#define DR_CPU_STATUS 0x53 - -/* Responses */ -#define DR_CPU_OK 0x6f -#define DR_CPU_ERROR 0x65 - - __u32 num_records; -}; - -struct dr_cpu_resp_entry { - __u32 cpu; - __u32 result; -#define DR_CPU_RES_OK 0x00 -#define DR_CPU_RES_FAILURE 0x01 -#define DR_CPU_RES_BLOCKED 0x02 -#define DR_CPU_RES_CPU_NOT_RESPONDING 0x03 -#define DR_CPU_RES_NOT_IN_MD 0x04 - - __u32 stat; -#define DR_CPU_STAT_NOT_PRESENT 0x00 -#define DR_CPU_STAT_UNCONFIGURED 0x01 -#define DR_CPU_STAT_CONFIGURED 0x02 - - __u32 str_off; -}; - -static void __dr_cpu_send_error(struct ds_info *dp, - struct ds_cap_state *cp, - struct ds_data *data) -{ - struct dr_cpu_tag *tag = (struct dr_cpu_tag *) (data + 1); - struct { - struct ds_data data; - struct dr_cpu_tag tag; - } pkt; - int msg_len; - - memset(&pkt, 0, sizeof(pkt)); - pkt.data.tag.type = DS_DATA; - pkt.data.handle = cp->handle; - pkt.tag.req_num = tag->req_num; - pkt.tag.type = DR_CPU_ERROR; - pkt.tag.num_records = 0; - - msg_len = (sizeof(struct ds_data) + - sizeof(struct dr_cpu_tag)); - - pkt.data.tag.len = msg_len - sizeof(struct ds_msg_tag); - - __ds_send(dp->lp, &pkt, msg_len); -} - -static void dr_cpu_send_error(struct ds_info *dp, - struct ds_cap_state *cp, - struct ds_data *data) -{ - unsigned long flags; - - spin_lock_irqsave(&ds_lock, flags); - __dr_cpu_send_error(dp, cp, data); - spin_unlock_irqrestore(&ds_lock, flags); -} - -#define CPU_SENTINEL 0xffffffff - -static void purge_dups(u32 *list, u32 num_ents) -{ - unsigned int i; - - for (i = 0; i < num_ents; i++) { - u32 cpu = list[i]; - unsigned int j; - - if (cpu == CPU_SENTINEL) - continue; - - for (j = i + 1; j < num_ents; j++) { - if (list[j] == cpu) - list[j] = CPU_SENTINEL; - } - } -} - -static int dr_cpu_size_response(int ncpus) -{ - return (sizeof(struct ds_data) + - sizeof(struct dr_cpu_tag) + - (sizeof(struct dr_cpu_resp_entry) * ncpus)); -} - -static void dr_cpu_init_response(struct ds_data *resp, u64 req_num, - u64 handle, int resp_len, int ncpus, - cpumask_t *mask, u32 default_stat) -{ - struct dr_cpu_resp_entry *ent; - struct dr_cpu_tag *tag; - int i, cpu; - - tag = (struct dr_cpu_tag *) (resp + 1); - ent = (struct dr_cpu_resp_entry *) (tag + 1); - - resp->tag.type = DS_DATA; - resp->tag.len = resp_len - sizeof(struct ds_msg_tag); - resp->handle = handle; - tag->req_num = req_num; - tag->type = DR_CPU_OK; - tag->num_records = ncpus; - - i = 0; - for_each_cpu_mask(cpu, *mask) { - ent[i].cpu = cpu; - ent[i].result = DR_CPU_RES_OK; - ent[i].stat = default_stat; - i++; - } - BUG_ON(i != ncpus); -} - -static void dr_cpu_mark(struct ds_data *resp, int cpu, int ncpus, - u32 res, u32 stat) -{ - struct dr_cpu_resp_entry *ent; - struct dr_cpu_tag *tag; - int i; - - tag = (struct dr_cpu_tag *) (resp + 1); - ent = (struct dr_cpu_resp_entry *) (tag + 1); - - for (i = 0; i < ncpus; i++) { - if (ent[i].cpu != cpu) - continue; - ent[i].result = res; - ent[i].stat = stat; - break; - } -} - -static int __cpuinit dr_cpu_configure(struct ds_info *dp, - struct ds_cap_state *cp, - u64 req_num, - cpumask_t *mask) -{ - struct ds_data *resp; - int resp_len, ncpus, cpu; - unsigned long flags; - - ncpus = cpus_weight(*mask); - resp_len = dr_cpu_size_response(ncpus); - resp = kzalloc(resp_len, GFP_KERNEL); - if (!resp) - return -ENOMEM; - - dr_cpu_init_response(resp, req_num, cp->handle, - resp_len, ncpus, mask, - DR_CPU_STAT_CONFIGURED); - - mdesc_fill_in_cpu_data(*mask); - - for_each_cpu_mask(cpu, *mask) { - int err; - - printk(KERN_INFO "ds-%lu: Starting cpu %d...\n", - dp->id, cpu); - err = cpu_up(cpu); - if (err) { - __u32 res = DR_CPU_RES_FAILURE; - __u32 stat = DR_CPU_STAT_UNCONFIGURED; - - if (!cpu_present(cpu)) { - /* CPU not present in MD */ - res = DR_CPU_RES_NOT_IN_MD; - stat = DR_CPU_STAT_NOT_PRESENT; - } else if (err == -ENODEV) { - /* CPU did not call in successfully */ - res = DR_CPU_RES_CPU_NOT_RESPONDING; - } - - printk(KERN_INFO "ds-%lu: CPU startup failed err=%d\n", - dp->id, err); - dr_cpu_mark(resp, cpu, ncpus, res, stat); - } - } - - spin_lock_irqsave(&ds_lock, flags); - __ds_send(dp->lp, resp, resp_len); - spin_unlock_irqrestore(&ds_lock, flags); - - kfree(resp); - - /* Redistribute IRQs, taking into account the new cpus. */ - fixup_irqs(); - - return 0; -} - -static int dr_cpu_unconfigure(struct ds_info *dp, - struct ds_cap_state *cp, - u64 req_num, - cpumask_t *mask) -{ - struct ds_data *resp; - int resp_len, ncpus, cpu; - unsigned long flags; - - ncpus = cpus_weight(*mask); - resp_len = dr_cpu_size_response(ncpus); - resp = kzalloc(resp_len, GFP_KERNEL); - if (!resp) - return -ENOMEM; - - dr_cpu_init_response(resp, req_num, cp->handle, - resp_len, ncpus, mask, - DR_CPU_STAT_UNCONFIGURED); - - for_each_cpu_mask(cpu, *mask) { - int err; - - printk(KERN_INFO "ds-%lu: Shutting down cpu %d...\n", - dp->id, cpu); - err = cpu_down(cpu); - if (err) - dr_cpu_mark(resp, cpu, ncpus, - DR_CPU_RES_FAILURE, - DR_CPU_STAT_CONFIGURED); - } - - spin_lock_irqsave(&ds_lock, flags); - __ds_send(dp->lp, resp, resp_len); - spin_unlock_irqrestore(&ds_lock, flags); - - kfree(resp); - - return 0; -} - -static void __cpuinit dr_cpu_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len) -{ - struct ds_data *data = buf; - struct dr_cpu_tag *tag = (struct dr_cpu_tag *) (data + 1); - u32 *cpu_list = (u32 *) (tag + 1); - u64 req_num = tag->req_num; - cpumask_t mask; - unsigned int i; - int err; - - switch (tag->type) { - case DR_CPU_CONFIGURE: - case DR_CPU_UNCONFIGURE: - case DR_CPU_FORCE_UNCONFIGURE: - break; - - default: - dr_cpu_send_error(dp, cp, data); - return; - } - - purge_dups(cpu_list, tag->num_records); - - cpus_clear(mask); - for (i = 0; i < tag->num_records; i++) { - if (cpu_list[i] == CPU_SENTINEL) - continue; - - if (cpu_list[i] < NR_CPUS) - cpu_set(cpu_list[i], mask); - } - - if (tag->type == DR_CPU_CONFIGURE) - err = dr_cpu_configure(dp, cp, req_num, &mask); - else - err = dr_cpu_unconfigure(dp, cp, req_num, &mask); - - if (err) - dr_cpu_send_error(dp, cp, data); -} -#endif /* CONFIG_HOTPLUG_CPU */ - -struct ds_pri_msg { - __u64 req_num; - __u64 type; -#define DS_PRI_REQUEST 0x00 -#define DS_PRI_DATA 0x01 -#define DS_PRI_UPDATE 0x02 -}; - -static void ds_pri_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len) -{ - struct ds_data *dpkt = buf; - struct ds_pri_msg *rp; - - rp = (struct ds_pri_msg *) (dpkt + 1); - - printk(KERN_INFO "ds-%lu: PRI REQ [%lx:%lx], len=%d\n", - dp->id, rp->req_num, rp->type, len); -} - -struct ds_var_hdr { - __u32 type; -#define DS_VAR_SET_REQ 0x00 -#define DS_VAR_DELETE_REQ 0x01 -#define DS_VAR_SET_RESP 0x02 -#define DS_VAR_DELETE_RESP 0x03 -}; - -struct ds_var_set_msg { - struct ds_var_hdr hdr; - char name_and_value[0]; -}; - -struct ds_var_delete_msg { - struct ds_var_hdr hdr; - char name[0]; -}; - -struct ds_var_resp { - struct ds_var_hdr hdr; - __u32 result; -#define DS_VAR_SUCCESS 0x00 -#define DS_VAR_NO_SPACE 0x01 -#define DS_VAR_INVALID_VAR 0x02 -#define DS_VAR_INVALID_VAL 0x03 -#define DS_VAR_NOT_PRESENT 0x04 -}; - -static DEFINE_MUTEX(ds_var_mutex); -static int ds_var_doorbell; -static int ds_var_response; - -static void ds_var_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len) -{ - struct ds_data *dpkt = buf; - struct ds_var_resp *rp; - - rp = (struct ds_var_resp *) (dpkt + 1); - - if (rp->hdr.type != DS_VAR_SET_RESP && - rp->hdr.type != DS_VAR_DELETE_RESP) - return; - - ds_var_response = rp->result; - wmb(); - ds_var_doorbell = 1; -} - -void ldom_set_var(const char *var, const char *value) -{ - struct ds_cap_state *cp; - struct ds_info *dp; - unsigned long flags; - - spin_lock_irqsave(&ds_lock, flags); - cp = NULL; - for (dp = ds_info_list; dp; dp = dp->next) { - struct ds_cap_state *tmp; - - tmp = find_cap_by_string(dp, "var-config"); - if (tmp && tmp->state == CAP_STATE_REGISTERED) { - cp = tmp; - break; - } - } - if (!cp) { - for (dp = ds_info_list; dp; dp = dp->next) { - struct ds_cap_state *tmp; - - tmp = find_cap_by_string(dp, "var-config-backup"); - if (tmp && tmp->state == CAP_STATE_REGISTERED) { - cp = tmp; - break; - } - } - } - spin_unlock_irqrestore(&ds_lock, flags); - - if (cp) { - union { - struct { - struct ds_data data; - struct ds_var_set_msg msg; - } header; - char all[512]; - } pkt; - char *base, *p; - int msg_len, loops; - - memset(&pkt, 0, sizeof(pkt)); - pkt.header.data.tag.type = DS_DATA; - pkt.header.data.handle = cp->handle; - pkt.header.msg.hdr.type = DS_VAR_SET_REQ; - base = p = &pkt.header.msg.name_and_value[0]; - strcpy(p, var); - p += strlen(var) + 1; - strcpy(p, value); - p += strlen(value) + 1; - - msg_len = (sizeof(struct ds_data) + - sizeof(struct ds_var_set_msg) + - (p - base)); - msg_len = (msg_len + 3) & ~3; - pkt.header.data.tag.len = msg_len - sizeof(struct ds_msg_tag); - - mutex_lock(&ds_var_mutex); - - spin_lock_irqsave(&ds_lock, flags); - ds_var_doorbell = 0; - ds_var_response = -1; - - __ds_send(dp->lp, &pkt, msg_len); - spin_unlock_irqrestore(&ds_lock, flags); - - loops = 1000; - while (ds_var_doorbell == 0) { - if (loops-- < 0) - break; - barrier(); - udelay(100); - } - - mutex_unlock(&ds_var_mutex); - - if (ds_var_doorbell == 0 || - ds_var_response != DS_VAR_SUCCESS) - printk(KERN_ERR "ds-%lu: var-config [%s:%s] " - "failed, response(%d).\n", - dp->id, var, value, - ds_var_response); - } else { - printk(KERN_ERR PFX "var-config not registered so " - "could not set (%s) variable to (%s).\n", - var, value); - } -} - -void ldom_reboot(const char *boot_command) -{ - /* Don't bother with any of this if the boot_command - * is empty. - */ - if (boot_command && strlen(boot_command)) { - char full_boot_str[256]; - - strcpy(full_boot_str, "boot "); - strcpy(full_boot_str + strlen("boot "), boot_command); - - ldom_set_var("reboot-command", full_boot_str); - } - sun4v_mach_sir(); -} - -void ldom_power_off(void) -{ - sun4v_mach_exit(0); -} - -static void ds_conn_reset(struct ds_info *dp) -{ - printk(KERN_ERR "ds-%lu: ds_conn_reset() from %p\n", - dp->id, __builtin_return_address(0)); -} - -static int register_services(struct ds_info *dp) -{ - struct ldc_channel *lp = dp->lp; - int i; - - for (i = 0; i < dp->num_ds_states; i++) { - struct { - struct ds_reg_req req; - u8 id_buf[256]; - } pbuf; - struct ds_cap_state *cp = &dp->ds_states[i]; - int err, msg_len; - u64 new_count; - - if (cp->state == CAP_STATE_REGISTERED) - continue; - - new_count = sched_clock() & 0xffffffff; - cp->handle = ((u64) i << 32) | new_count; - - msg_len = (sizeof(struct ds_reg_req) + - strlen(cp->service_id)); - - memset(&pbuf, 0, sizeof(pbuf)); - pbuf.req.tag.type = DS_REG_REQ; - pbuf.req.tag.len = (msg_len - sizeof(struct ds_msg_tag)); - pbuf.req.handle = cp->handle; - pbuf.req.major = 1; - pbuf.req.minor = 0; - strcpy(pbuf.req.svc_id, cp->service_id); - - err = __ds_send(lp, &pbuf, msg_len); - if (err > 0) - cp->state = CAP_STATE_REG_SENT; - } - return 0; -} - -static int ds_handshake(struct ds_info *dp, struct ds_msg_tag *pkt) -{ - - if (dp->hs_state == DS_HS_START) { - if (pkt->type != DS_INIT_ACK) - goto conn_reset; - - dp->hs_state = DS_HS_DONE; - - return register_services(dp); - } - - if (dp->hs_state != DS_HS_DONE) - goto conn_reset; - - if (pkt->type == DS_REG_ACK) { - struct ds_reg_ack *ap = (struct ds_reg_ack *) pkt; - struct ds_cap_state *cp = find_cap(dp, ap->handle); - - if (!cp) { - printk(KERN_ERR "ds-%lu: REG ACK for unknown " - "handle %lx\n", dp->id, ap->handle); - return 0; - } - printk(KERN_INFO "ds-%lu: Registered %s service.\n", - dp->id, cp->service_id); - cp->state = CAP_STATE_REGISTERED; - } else if (pkt->type == DS_REG_NACK) { - struct ds_reg_nack *np = (struct ds_reg_nack *) pkt; - struct ds_cap_state *cp = find_cap(dp, np->handle); - - if (!cp) { - printk(KERN_ERR "ds-%lu: REG NACK for " - "unknown handle %lx\n", - dp->id, np->handle); - return 0; - } - cp->state = CAP_STATE_UNKNOWN; - } - - return 0; - -conn_reset: - ds_conn_reset(dp); - return -ECONNRESET; -} - -static void __send_ds_nack(struct ds_info *dp, u64 handle) -{ - struct ds_data_nack nack = { - .tag = { - .type = DS_NACK, - .len = (sizeof(struct ds_data_nack) - - sizeof(struct ds_msg_tag)), - }, - .handle = handle, - .result = DS_INV_HDL, - }; - - __ds_send(dp->lp, &nack, sizeof(nack)); -} - -static LIST_HEAD(ds_work_list); -static DECLARE_WAIT_QUEUE_HEAD(ds_wait); - -struct ds_queue_entry { - struct list_head list; - struct ds_info *dp; - int req_len; - int __pad; - u64 req[0]; -}; - -static void process_ds_work(void) -{ - struct ds_queue_entry *qp, *tmp; - unsigned long flags; - LIST_HEAD(todo); - - spin_lock_irqsave(&ds_lock, flags); - list_splice_init(&ds_work_list, &todo); - spin_unlock_irqrestore(&ds_lock, flags); - - list_for_each_entry_safe(qp, tmp, &todo, list) { - struct ds_data *dpkt = (struct ds_data *) qp->req; - struct ds_info *dp = qp->dp; - struct ds_cap_state *cp = find_cap(dp, dpkt->handle); - int req_len = qp->req_len; - - if (!cp) { - printk(KERN_ERR "ds-%lu: Data for unknown " - "handle %lu\n", - dp->id, dpkt->handle); - - spin_lock_irqsave(&ds_lock, flags); - __send_ds_nack(dp, dpkt->handle); - spin_unlock_irqrestore(&ds_lock, flags); - } else { - cp->data(dp, cp, dpkt, req_len); - } - - list_del(&qp->list); - kfree(qp); - } -} - -static int ds_thread(void *__unused) -{ - DEFINE_WAIT(wait); - - while (1) { - prepare_to_wait(&ds_wait, &wait, TASK_INTERRUPTIBLE); - if (list_empty(&ds_work_list)) - schedule(); - finish_wait(&ds_wait, &wait); - - if (kthread_should_stop()) - break; - - process_ds_work(); - } - - return 0; -} - -static int ds_data(struct ds_info *dp, struct ds_msg_tag *pkt, int len) -{ - struct ds_data *dpkt = (struct ds_data *) pkt; - struct ds_queue_entry *qp; - - qp = kmalloc(sizeof(struct ds_queue_entry) + len, GFP_ATOMIC); - if (!qp) { - __send_ds_nack(dp, dpkt->handle); - } else { - qp->dp = dp; - memcpy(&qp->req, pkt, len); - list_add_tail(&qp->list, &ds_work_list); - wake_up(&ds_wait); - } - return 0; -} - -static void ds_up(struct ds_info *dp) -{ - struct ldc_channel *lp = dp->lp; - struct ds_ver_req req; - int err; - - req.tag.type = DS_INIT_REQ; - req.tag.len = sizeof(req) - sizeof(struct ds_msg_tag); - req.ver.major = 1; - req.ver.minor = 0; - - err = __ds_send(lp, &req, sizeof(req)); - if (err > 0) - dp->hs_state = DS_HS_START; -} - -static void ds_reset(struct ds_info *dp) -{ - int i; - - dp->hs_state = 0; - - for (i = 0; i < dp->num_ds_states; i++) { - struct ds_cap_state *cp = &dp->ds_states[i]; - - cp->state = CAP_STATE_UNKNOWN; - } -} - -static void ds_event(void *arg, int event) -{ - struct ds_info *dp = arg; - struct ldc_channel *lp = dp->lp; - unsigned long flags; - int err; - - spin_lock_irqsave(&ds_lock, flags); - - if (event == LDC_EVENT_UP) { - ds_up(dp); - spin_unlock_irqrestore(&ds_lock, flags); - return; - } - - if (event == LDC_EVENT_RESET) { - ds_reset(dp); - spin_unlock_irqrestore(&ds_lock, flags); - return; - } - - if (event != LDC_EVENT_DATA_READY) { - printk(KERN_WARNING "ds-%lu: Unexpected LDC event %d\n", - dp->id, event); - spin_unlock_irqrestore(&ds_lock, flags); - return; - } - - err = 0; - while (1) { - struct ds_msg_tag *tag; - - err = ldc_read(lp, dp->rcv_buf, sizeof(*tag)); - - if (unlikely(err < 0)) { - if (err == -ECONNRESET) - ds_conn_reset(dp); - break; - } - if (err == 0) - break; - - tag = dp->rcv_buf; - err = ldc_read(lp, tag + 1, tag->len); - - if (unlikely(err < 0)) { - if (err == -ECONNRESET) - ds_conn_reset(dp); - break; - } - if (err < tag->len) - break; - - if (tag->type < DS_DATA) - err = ds_handshake(dp, dp->rcv_buf); - else - err = ds_data(dp, dp->rcv_buf, - sizeof(*tag) + err); - if (err == -ECONNRESET) - break; - } - - spin_unlock_irqrestore(&ds_lock, flags); -} - -static int __devinit ds_probe(struct vio_dev *vdev, - const struct vio_device_id *id) -{ - static int ds_version_printed; - struct ldc_channel_config ds_cfg = { - .event = ds_event, - .mtu = 4096, - .mode = LDC_MODE_STREAM, - }; - struct mdesc_handle *hp; - struct ldc_channel *lp; - struct ds_info *dp; - const u64 *val; - int err, i; - - if (ds_version_printed++ == 0) - printk(KERN_INFO "%s", version); - - dp = kzalloc(sizeof(*dp), GFP_KERNEL); - err = -ENOMEM; - if (!dp) - goto out_err; - - hp = mdesc_grab(); - val = mdesc_get_property(hp, vdev->mp, "id", NULL); - if (val) - dp->id = *val; - mdesc_release(hp); - - dp->rcv_buf = kzalloc(4096, GFP_KERNEL); - if (!dp->rcv_buf) - goto out_free_dp; - - dp->rcv_buf_len = 4096; - - dp->ds_states = kzalloc(sizeof(ds_states_template), - GFP_KERNEL); - if (!dp->ds_states) - goto out_free_rcv_buf; - - memcpy(dp->ds_states, ds_states_template, - sizeof(ds_states_template)); - dp->num_ds_states = ARRAY_SIZE(ds_states_template); - - for (i = 0; i < dp->num_ds_states; i++) - dp->ds_states[i].handle = ((u64)i << 32); - - ds_cfg.tx_irq = vdev->tx_irq; - ds_cfg.rx_irq = vdev->rx_irq; - - lp = ldc_alloc(vdev->channel_id, &ds_cfg, dp); - if (IS_ERR(lp)) { - err = PTR_ERR(lp); - goto out_free_ds_states; - } - dp->lp = lp; - - err = ldc_bind(lp, "DS"); - if (err) - goto out_free_ldc; - - spin_lock_irq(&ds_lock); - dp->next = ds_info_list; - ds_info_list = dp; - spin_unlock_irq(&ds_lock); - - return err; - -out_free_ldc: - ldc_free(dp->lp); - -out_free_ds_states: - kfree(dp->ds_states); - -out_free_rcv_buf: - kfree(dp->rcv_buf); - -out_free_dp: - kfree(dp); - -out_err: - return err; -} - -static int ds_remove(struct vio_dev *vdev) -{ - return 0; -} - -static struct vio_device_id __initdata ds_match[] = { - { - .type = "domain-services-port", - }, - {}, -}; - -static struct vio_driver ds_driver = { - .id_table = ds_match, - .probe = ds_probe, - .remove = ds_remove, - .driver = { - .name = "ds", - .owner = THIS_MODULE, - } -}; - -static int __init ds_init(void) -{ - kthread_run(ds_thread, NULL, "kldomd"); - - return vio_register_driver(&ds_driver); -} - -subsys_initcall(ds_init); diff --git a/arch/sparc64/kernel/dtlb_miss.S b/arch/sparc64/kernel/dtlb_miss.S deleted file mode 100644 index 09a6a15a7105..000000000000 --- a/arch/sparc64/kernel/dtlb_miss.S +++ /dev/null @@ -1,39 +0,0 @@ -/* DTLB ** ICACHE line 1: Context 0 check and TSB load */ - ldxa [%g0] ASI_DMMU_TSB_8KB_PTR, %g1 ! Get TSB 8K pointer - ldxa [%g0] ASI_DMMU, %g6 ! Get TAG TARGET - srlx %g6, 48, %g5 ! Get context - sllx %g6, 22, %g6 ! Zero out context - brz,pn %g5, kvmap_dtlb ! Context 0 processing - srlx %g6, 22, %g6 ! Delay slot - TSB_LOAD_QUAD(%g1, %g4) ! Load TSB entry - cmp %g4, %g6 ! Compare TAG - -/* DTLB ** ICACHE line 2: TSB compare and TLB load */ - bne,pn %xcc, tsb_miss_dtlb ! Miss - mov FAULT_CODE_DTLB, %g3 - stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Load TLB - retry ! Trap done - nop - nop - nop - nop - -/* DTLB ** ICACHE line 3: */ - nop - nop - nop - nop - nop - nop - nop - nop - -/* DTLB ** ICACHE line 4: */ - nop - nop - nop - nop - nop - nop - nop - nop diff --git a/arch/sparc64/kernel/dtlb_prot.S b/arch/sparc64/kernel/dtlb_prot.S deleted file mode 100644 index b2c2c5be281c..000000000000 --- a/arch/sparc64/kernel/dtlb_prot.S +++ /dev/null @@ -1,54 +0,0 @@ -/* - * dtlb_prot.S: DTLB protection trap strategy. - * This is included directly into the trap table. - * - * Copyright (C) 1996,1998 David S. Miller (davem@redhat.com) - * Copyright (C) 1997,1998 Jakub Jelinek (jj@ultra.linux.cz) - */ - -/* Ways we can get here: - * - * [TL == 0] 1) User stores to readonly pages. - * [TL == 0] 2) Nucleus stores to user readonly pages. - * [TL > 0] 3) Nucleus stores to user readonly stack frame. - */ - -/* PROT ** ICACHE line 1: User DTLB protection trap */ - mov TLB_SFSR, %g1 - stxa %g0, [%g1] ASI_DMMU ! Clear FaultValid bit - membar #Sync ! Synchronize stores - rdpr %pstate, %g5 ! Move into alt-globals - wrpr %g5, PSTATE_AG|PSTATE_MG, %pstate - rdpr %tl, %g1 ! Need a winfixup? - cmp %g1, 1 ! Trap level >1? - mov TLB_TAG_ACCESS, %g4 ! For reload of vaddr - -/* PROT ** ICACHE line 2: More real fault processing */ - bgu,pn %xcc, winfix_trampoline ! Yes, perform winfixup - ldxa [%g4] ASI_DMMU, %g5 ! Put tagaccess in %g5 - ba,pt %xcc, sparc64_realfault_common ! Nope, normal fault - mov FAULT_CODE_DTLB | FAULT_CODE_WRITE, %g4 - nop - nop - nop - nop - -/* PROT ** ICACHE line 3: Unused... */ - nop - nop - nop - nop - nop - nop - nop - nop - -/* PROT ** ICACHE line 4: Unused... */ - nop - nop - nop - nop - nop - nop - nop - nop diff --git a/arch/sparc64/kernel/ebus.c b/arch/sparc64/kernel/ebus.c deleted file mode 100644 index 77dbf6d45faf..000000000000 --- a/arch/sparc64/kernel/ebus.c +++ /dev/null @@ -1,257 +0,0 @@ -/* ebus.c: EBUS DMA library code. - * - * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 1999 David S. Miller (davem@redhat.com) - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/delay.h> - -#include <asm/ebus_dma.h> -#include <asm/io.h> - -#define EBDMA_CSR 0x00UL /* Control/Status */ -#define EBDMA_ADDR 0x04UL /* DMA Address */ -#define EBDMA_COUNT 0x08UL /* DMA Count */ - -#define EBDMA_CSR_INT_PEND 0x00000001 -#define EBDMA_CSR_ERR_PEND 0x00000002 -#define EBDMA_CSR_DRAIN 0x00000004 -#define EBDMA_CSR_INT_EN 0x00000010 -#define EBDMA_CSR_RESET 0x00000080 -#define EBDMA_CSR_WRITE 0x00000100 -#define EBDMA_CSR_EN_DMA 0x00000200 -#define EBDMA_CSR_CYC_PEND 0x00000400 -#define EBDMA_CSR_DIAG_RD_DONE 0x00000800 -#define EBDMA_CSR_DIAG_WR_DONE 0x00001000 -#define EBDMA_CSR_EN_CNT 0x00002000 -#define EBDMA_CSR_TC 0x00004000 -#define EBDMA_CSR_DIS_CSR_DRN 0x00010000 -#define EBDMA_CSR_BURST_SZ_MASK 0x000c0000 -#define EBDMA_CSR_BURST_SZ_1 0x00080000 -#define EBDMA_CSR_BURST_SZ_4 0x00000000 -#define EBDMA_CSR_BURST_SZ_8 0x00040000 -#define EBDMA_CSR_BURST_SZ_16 0x000c0000 -#define EBDMA_CSR_DIAG_EN 0x00100000 -#define EBDMA_CSR_DIS_ERR_PEND 0x00400000 -#define EBDMA_CSR_TCI_DIS 0x00800000 -#define EBDMA_CSR_EN_NEXT 0x01000000 -#define EBDMA_CSR_DMA_ON 0x02000000 -#define EBDMA_CSR_A_LOADED 0x04000000 -#define EBDMA_CSR_NA_LOADED 0x08000000 -#define EBDMA_CSR_DEV_ID_MASK 0xf0000000 - -#define EBUS_DMA_RESET_TIMEOUT 10000 - -static void __ebus_dma_reset(struct ebus_dma_info *p, int no_drain) -{ - int i; - u32 val = 0; - - writel(EBDMA_CSR_RESET, p->regs + EBDMA_CSR); - udelay(1); - - if (no_drain) - return; - - for (i = EBUS_DMA_RESET_TIMEOUT; i > 0; i--) { - val = readl(p->regs + EBDMA_CSR); - - if (!(val & (EBDMA_CSR_DRAIN | EBDMA_CSR_CYC_PEND))) - break; - udelay(10); - } -} - -static irqreturn_t ebus_dma_irq(int irq, void *dev_id) -{ - struct ebus_dma_info *p = dev_id; - unsigned long flags; - u32 csr = 0; - - spin_lock_irqsave(&p->lock, flags); - csr = readl(p->regs + EBDMA_CSR); - writel(csr, p->regs + EBDMA_CSR); - spin_unlock_irqrestore(&p->lock, flags); - - if (csr & EBDMA_CSR_ERR_PEND) { - printk(KERN_CRIT "ebus_dma(%s): DMA error!\n", p->name); - p->callback(p, EBUS_DMA_EVENT_ERROR, p->client_cookie); - return IRQ_HANDLED; - } else if (csr & EBDMA_CSR_INT_PEND) { - p->callback(p, - (csr & EBDMA_CSR_TC) ? - EBUS_DMA_EVENT_DMA : EBUS_DMA_EVENT_DEVICE, - p->client_cookie); - return IRQ_HANDLED; - } - - return IRQ_NONE; - -} - -int ebus_dma_register(struct ebus_dma_info *p) -{ - u32 csr; - - if (!p->regs) - return -EINVAL; - if (p->flags & ~(EBUS_DMA_FLAG_USE_EBDMA_HANDLER | - EBUS_DMA_FLAG_TCI_DISABLE)) - return -EINVAL; - if ((p->flags & EBUS_DMA_FLAG_USE_EBDMA_HANDLER) && !p->callback) - return -EINVAL; - if (!strlen(p->name)) - return -EINVAL; - - __ebus_dma_reset(p, 1); - - csr = EBDMA_CSR_BURST_SZ_16 | EBDMA_CSR_EN_CNT; - - if (p->flags & EBUS_DMA_FLAG_TCI_DISABLE) - csr |= EBDMA_CSR_TCI_DIS; - - writel(csr, p->regs + EBDMA_CSR); - - return 0; -} -EXPORT_SYMBOL(ebus_dma_register); - -int ebus_dma_irq_enable(struct ebus_dma_info *p, int on) -{ - unsigned long flags; - u32 csr; - - if (on) { - if (p->flags & EBUS_DMA_FLAG_USE_EBDMA_HANDLER) { - if (request_irq(p->irq, ebus_dma_irq, IRQF_SHARED, p->name, p)) - return -EBUSY; - } - - spin_lock_irqsave(&p->lock, flags); - csr = readl(p->regs + EBDMA_CSR); - csr |= EBDMA_CSR_INT_EN; - writel(csr, p->regs + EBDMA_CSR); - spin_unlock_irqrestore(&p->lock, flags); - } else { - spin_lock_irqsave(&p->lock, flags); - csr = readl(p->regs + EBDMA_CSR); - csr &= ~EBDMA_CSR_INT_EN; - writel(csr, p->regs + EBDMA_CSR); - spin_unlock_irqrestore(&p->lock, flags); - - if (p->flags & EBUS_DMA_FLAG_USE_EBDMA_HANDLER) { - free_irq(p->irq, p); - } - } - - return 0; -} -EXPORT_SYMBOL(ebus_dma_irq_enable); - -void ebus_dma_unregister(struct ebus_dma_info *p) -{ - unsigned long flags; - u32 csr; - int irq_on = 0; - - spin_lock_irqsave(&p->lock, flags); - csr = readl(p->regs + EBDMA_CSR); - if (csr & EBDMA_CSR_INT_EN) { - csr &= ~EBDMA_CSR_INT_EN; - writel(csr, p->regs + EBDMA_CSR); - irq_on = 1; - } - spin_unlock_irqrestore(&p->lock, flags); - - if (irq_on) - free_irq(p->irq, p); -} -EXPORT_SYMBOL(ebus_dma_unregister); - -int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr, size_t len) -{ - unsigned long flags; - u32 csr; - int err; - - if (len >= (1 << 24)) - return -EINVAL; - - spin_lock_irqsave(&p->lock, flags); - csr = readl(p->regs + EBDMA_CSR); - err = -EINVAL; - if (!(csr & EBDMA_CSR_EN_DMA)) - goto out; - err = -EBUSY; - if (csr & EBDMA_CSR_NA_LOADED) - goto out; - - writel(len, p->regs + EBDMA_COUNT); - writel(bus_addr, p->regs + EBDMA_ADDR); - err = 0; - -out: - spin_unlock_irqrestore(&p->lock, flags); - - return err; -} -EXPORT_SYMBOL(ebus_dma_request); - -void ebus_dma_prepare(struct ebus_dma_info *p, int write) -{ - unsigned long flags; - u32 csr; - - spin_lock_irqsave(&p->lock, flags); - __ebus_dma_reset(p, 0); - - csr = (EBDMA_CSR_INT_EN | - EBDMA_CSR_EN_CNT | - EBDMA_CSR_BURST_SZ_16 | - EBDMA_CSR_EN_NEXT); - - if (write) - csr |= EBDMA_CSR_WRITE; - if (p->flags & EBUS_DMA_FLAG_TCI_DISABLE) - csr |= EBDMA_CSR_TCI_DIS; - - writel(csr, p->regs + EBDMA_CSR); - - spin_unlock_irqrestore(&p->lock, flags); -} -EXPORT_SYMBOL(ebus_dma_prepare); - -unsigned int ebus_dma_residue(struct ebus_dma_info *p) -{ - return readl(p->regs + EBDMA_COUNT); -} -EXPORT_SYMBOL(ebus_dma_residue); - -unsigned int ebus_dma_addr(struct ebus_dma_info *p) -{ - return readl(p->regs + EBDMA_ADDR); -} -EXPORT_SYMBOL(ebus_dma_addr); - -void ebus_dma_enable(struct ebus_dma_info *p, int on) -{ - unsigned long flags; - u32 orig_csr, csr; - - spin_lock_irqsave(&p->lock, flags); - orig_csr = csr = readl(p->regs + EBDMA_CSR); - if (on) - csr |= EBDMA_CSR_EN_DMA; - else - csr &= ~EBDMA_CSR_EN_DMA; - if ((orig_csr & EBDMA_CSR_EN_DMA) != - (csr & EBDMA_CSR_EN_DMA)) - writel(csr, p->regs + EBDMA_CSR); - spin_unlock_irqrestore(&p->lock, flags); -} -EXPORT_SYMBOL(ebus_dma_enable); diff --git a/arch/sparc64/kernel/entry.h b/arch/sparc64/kernel/entry.h deleted file mode 100644 index 34d7ab5e10d2..000000000000 --- a/arch/sparc64/kernel/entry.h +++ /dev/null @@ -1,195 +0,0 @@ -#ifndef _ENTRY_H -#define _ENTRY_H - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/init.h> - -extern const char *sparc_cpu_type; -extern const char *sparc_fpu_type; - -extern void __init per_cpu_patch(void); -extern void __init sun4v_patch(void); -extern void __init boot_cpu_id_too_large(int cpu); -extern unsigned int dcache_parity_tl1_occurred; -extern unsigned int icache_parity_tl1_occurred; - -extern asmlinkage void update_perfctrs(void); -extern asmlinkage void sparc_breakpoint(struct pt_regs *regs); -extern void timer_interrupt(int irq, struct pt_regs *regs); - -extern void do_notify_resume(struct pt_regs *regs, - unsigned long orig_i0, - unsigned long thread_info_flags); - -extern asmlinkage int syscall_trace_enter(struct pt_regs *regs); -extern asmlinkage void syscall_trace_leave(struct pt_regs *regs); - -extern void bad_trap_tl1(struct pt_regs *regs, long lvl); - -extern void do_fpe_common(struct pt_regs *regs); -extern void do_fpieee(struct pt_regs *regs); -extern void do_fpother(struct pt_regs *regs); -extern void do_tof(struct pt_regs *regs); -extern void do_div0(struct pt_regs *regs); -extern void do_illegal_instruction(struct pt_regs *regs); -extern void mem_address_unaligned(struct pt_regs *regs, - unsigned long sfar, - unsigned long sfsr); -extern void sun4v_do_mna(struct pt_regs *regs, - unsigned long addr, - unsigned long type_ctx); -extern void do_privop(struct pt_regs *regs); -extern void do_privact(struct pt_regs *regs); -extern void do_cee(struct pt_regs *regs); -extern void do_cee_tl1(struct pt_regs *regs); -extern void do_dae_tl1(struct pt_regs *regs); -extern void do_iae_tl1(struct pt_regs *regs); -extern void do_div0_tl1(struct pt_regs *regs); -extern void do_fpdis_tl1(struct pt_regs *regs); -extern void do_fpieee_tl1(struct pt_regs *regs); -extern void do_fpother_tl1(struct pt_regs *regs); -extern void do_ill_tl1(struct pt_regs *regs); -extern void do_irq_tl1(struct pt_regs *regs); -extern void do_lddfmna_tl1(struct pt_regs *regs); -extern void do_stdfmna_tl1(struct pt_regs *regs); -extern void do_paw(struct pt_regs *regs); -extern void do_paw_tl1(struct pt_regs *regs); -extern void do_vaw(struct pt_regs *regs); -extern void do_vaw_tl1(struct pt_regs *regs); -extern void do_tof_tl1(struct pt_regs *regs); -extern void do_getpsr(struct pt_regs *regs); - -extern void spitfire_insn_access_exception(struct pt_regs *regs, - unsigned long sfsr, - unsigned long sfar); -extern void spitfire_insn_access_exception_tl1(struct pt_regs *regs, - unsigned long sfsr, - unsigned long sfar); -extern void spitfire_data_access_exception(struct pt_regs *regs, - unsigned long sfsr, - unsigned long sfar); -extern void spitfire_data_access_exception_tl1(struct pt_regs *regs, - unsigned long sfsr, - unsigned long sfar); -extern void spitfire_access_error(struct pt_regs *regs, - unsigned long status_encoded, - unsigned long afar); - -extern void cheetah_fecc_handler(struct pt_regs *regs, - unsigned long afsr, - unsigned long afar); -extern void cheetah_cee_handler(struct pt_regs *regs, - unsigned long afsr, - unsigned long afar); -extern void cheetah_deferred_handler(struct pt_regs *regs, - unsigned long afsr, - unsigned long afar); -extern void cheetah_plus_parity_error(int type, struct pt_regs *regs); - -extern void sun4v_insn_access_exception(struct pt_regs *regs, - unsigned long addr, - unsigned long type_ctx); -extern void sun4v_insn_access_exception_tl1(struct pt_regs *regs, - unsigned long addr, - unsigned long type_ctx); -extern void sun4v_data_access_exception(struct pt_regs *regs, - unsigned long addr, - unsigned long type_ctx); -extern void sun4v_data_access_exception_tl1(struct pt_regs *regs, - unsigned long addr, - unsigned long type_ctx); -extern void sun4v_resum_error(struct pt_regs *regs, - unsigned long offset); -extern void sun4v_resum_overflow(struct pt_regs *regs); -extern void sun4v_nonresum_error(struct pt_regs *regs, - unsigned long offset); -extern void sun4v_nonresum_overflow(struct pt_regs *regs); - -extern unsigned long sun4v_err_itlb_vaddr; -extern unsigned long sun4v_err_itlb_ctx; -extern unsigned long sun4v_err_itlb_pte; -extern unsigned long sun4v_err_itlb_error; - -extern void sun4v_itlb_error_report(struct pt_regs *regs, int tl); - -extern unsigned long sun4v_err_dtlb_vaddr; -extern unsigned long sun4v_err_dtlb_ctx; -extern unsigned long sun4v_err_dtlb_pte; -extern unsigned long sun4v_err_dtlb_error; - -extern void sun4v_dtlb_error_report(struct pt_regs *regs, int tl); -extern void hypervisor_tlbop_error(unsigned long err, - unsigned long op); -extern void hypervisor_tlbop_error_xcall(unsigned long err, - unsigned long op); - -/* WARNING: The error trap handlers in assembly know the precise - * layout of the following structure. - * - * C-level handlers in traps.c use this information to log the - * error and then determine how to recover (if possible). - */ -struct cheetah_err_info { -/*0x00*/u64 afsr; -/*0x08*/u64 afar; - - /* D-cache state */ -/*0x10*/u64 dcache_data[4]; /* The actual data */ -/*0x30*/u64 dcache_index; /* D-cache index */ -/*0x38*/u64 dcache_tag; /* D-cache tag/valid */ -/*0x40*/u64 dcache_utag; /* D-cache microtag */ -/*0x48*/u64 dcache_stag; /* D-cache snooptag */ - - /* I-cache state */ -/*0x50*/u64 icache_data[8]; /* The actual insns + predecode */ -/*0x90*/u64 icache_index; /* I-cache index */ -/*0x98*/u64 icache_tag; /* I-cache phys tag */ -/*0xa0*/u64 icache_utag; /* I-cache microtag */ -/*0xa8*/u64 icache_stag; /* I-cache snooptag */ -/*0xb0*/u64 icache_upper; /* I-cache upper-tag */ -/*0xb8*/u64 icache_lower; /* I-cache lower-tag */ - - /* E-cache state */ -/*0xc0*/u64 ecache_data[4]; /* 32 bytes from staging registers */ -/*0xe0*/u64 ecache_index; /* E-cache index */ -/*0xe8*/u64 ecache_tag; /* E-cache tag/state */ - -/*0xf0*/u64 __pad[32 - 30]; -}; -#define CHAFSR_INVALID ((u64)-1L) - -/* This is allocated at boot time based upon the largest hardware - * cpu ID in the system. We allocate two entries per cpu, one for - * TL==0 logging and one for TL >= 1 logging. - */ -extern struct cheetah_err_info *cheetah_error_log; - -/* UPA nodes send interrupt packet to UltraSparc with first data reg - * value low 5 (7 on Starfire) bits holding the IRQ identifier being - * delivered. We must translate this into a non-vector IRQ so we can - * set the softint on this cpu. - * - * To make processing these packets efficient and race free we use - * an array of irq buckets below. The interrupt vector handler in - * entry.S feeds incoming packets into per-cpu pil-indexed lists. - * - * If you make changes to ino_bucket, please update hand coded assembler - * of the vectored interrupt trap handler(s) in entry.S and sun4v_ivec.S - */ -struct ino_bucket { -/*0x00*/unsigned long __irq_chain_pa; - - /* Virtual interrupt number assigned to this INO. */ -/*0x08*/unsigned int __virt_irq; -/*0x0c*/unsigned int __pad; -}; - -extern struct ino_bucket *ivector_table; -extern unsigned long ivector_table_pa; - -extern void handler_irq(int irq, struct pt_regs *regs); -extern void init_irqwork_curcpu(void); -extern void __cpuinit sun4v_register_mondo_queues(int this_cpu); - -#endif /* _ENTRY_H */ diff --git a/arch/sparc64/kernel/etrap.S b/arch/sparc64/kernel/etrap.S deleted file mode 100644 index 29ce489bc188..000000000000 --- a/arch/sparc64/kernel/etrap.S +++ /dev/null @@ -1,236 +0,0 @@ -/* - * etrap.S: Preparing for entry into the kernel on Sparc V9. - * - * Copyright (C) 1996, 1997 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1997, 1998, 1999 Jakub Jelinek (jj@ultra.linux.cz) - */ - - -#include <asm/asi.h> -#include <asm/pstate.h> -#include <asm/ptrace.h> -#include <asm/page.h> -#include <asm/spitfire.h> -#include <asm/head.h> -#include <asm/processor.h> -#include <asm/mmu.h> - -#define TASK_REGOFF (THREAD_SIZE-TRACEREG_SZ-STACKFRAME_SZ) -#define ETRAP_PSTATE1 (PSTATE_RMO | PSTATE_PRIV) -#define ETRAP_PSTATE2 \ - (PSTATE_RMO | PSTATE_PEF | PSTATE_PRIV | PSTATE_IE) - -/* - * On entry, %g7 is return address - 0x4. - * %g4 and %g5 will be preserved %l4 and %l5 respectively. - */ - - .text - .align 64 - .globl etrap_syscall, etrap, etrap_irq, etraptl1 -etrap: rdpr %pil, %g2 -etrap_irq: clr %g3 -etrap_syscall: TRAP_LOAD_THREAD_REG(%g6, %g1) - rdpr %tstate, %g1 - or %g1, %g3, %g1 - sllx %g2, 20, %g3 - andcc %g1, TSTATE_PRIV, %g0 - or %g1, %g3, %g1 - bne,pn %xcc, 1f - sub %sp, STACKFRAME_SZ+TRACEREG_SZ-STACK_BIAS, %g2 - wrpr %g0, 7, %cleanwin - - sethi %hi(TASK_REGOFF), %g2 - sethi %hi(TSTATE_PEF), %g3 - or %g2, %lo(TASK_REGOFF), %g2 - and %g1, %g3, %g3 - brnz,pn %g3, 1f - add %g6, %g2, %g2 - wr %g0, 0, %fprs -1: rdpr %tpc, %g3 - - stx %g1, [%g2 + STACKFRAME_SZ + PT_V9_TSTATE] - rdpr %tnpc, %g1 - stx %g3, [%g2 + STACKFRAME_SZ + PT_V9_TPC] - rd %y, %g3 - stx %g1, [%g2 + STACKFRAME_SZ + PT_V9_TNPC] - rdpr %tt, %g1 - st %g3, [%g2 + STACKFRAME_SZ + PT_V9_Y] - sethi %hi(PT_REGS_MAGIC), %g3 - or %g3, %g1, %g1 - st %g1, [%g2 + STACKFRAME_SZ + PT_V9_MAGIC] - - rdpr %cansave, %g1 - brnz,pt %g1, etrap_save - nop - - rdpr %cwp, %g1 - add %g1, 2, %g1 - wrpr %g1, %cwp - be,pt %xcc, etrap_user_spill - mov ASI_AIUP, %g3 - - rdpr %otherwin, %g3 - brz %g3, etrap_kernel_spill - mov ASI_AIUS, %g3 - -etrap_user_spill: - - wr %g3, 0x0, %asi - ldx [%g6 + TI_FLAGS], %g3 - and %g3, _TIF_32BIT, %g3 - brnz,pt %g3, etrap_user_spill_32bit - nop - ba,a,pt %xcc, etrap_user_spill_64bit - -etrap_save: save %g2, -STACK_BIAS, %sp - mov %g6, %l6 - - bne,pn %xcc, 3f - mov PRIMARY_CONTEXT, %l4 - rdpr %canrestore, %g3 - rdpr %wstate, %g2 - wrpr %g0, 0, %canrestore - sll %g2, 3, %g2 - mov 1, %l5 - stb %l5, [%l6 + TI_FPDEPTH] - - wrpr %g3, 0, %otherwin - wrpr %g2, 0, %wstate - sethi %hi(sparc64_kern_pri_context), %g2 - ldx [%g2 + %lo(sparc64_kern_pri_context)], %g3 - -661: stxa %g3, [%l4] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %g3, [%l4] ASI_MMU - .previous - - sethi %hi(KERNBASE), %l4 - flush %l4 - mov ASI_AIUS, %l7 -2: mov %g4, %l4 - mov %g5, %l5 - add %g7, 4, %l2 - - /* Go to trap time globals so we can save them. */ -661: wrpr %g0, ETRAP_PSTATE1, %pstate - .section .sun4v_1insn_patch, "ax" - .word 661b - SET_GL(0) - .previous - - stx %g1, [%sp + PTREGS_OFF + PT_V9_G1] - stx %g2, [%sp + PTREGS_OFF + PT_V9_G2] - sllx %l7, 24, %l7 - stx %g3, [%sp + PTREGS_OFF + PT_V9_G3] - rdpr %cwp, %l0 - stx %g4, [%sp + PTREGS_OFF + PT_V9_G4] - stx %g5, [%sp + PTREGS_OFF + PT_V9_G5] - stx %g6, [%sp + PTREGS_OFF + PT_V9_G6] - stx %g7, [%sp + PTREGS_OFF + PT_V9_G7] - or %l7, %l0, %l7 - sethi %hi(TSTATE_RMO | TSTATE_PEF), %l0 - or %l7, %l0, %l7 - wrpr %l2, %tnpc - wrpr %l7, (TSTATE_PRIV | TSTATE_IE), %tstate - stx %i0, [%sp + PTREGS_OFF + PT_V9_I0] - stx %i1, [%sp + PTREGS_OFF + PT_V9_I1] - stx %i2, [%sp + PTREGS_OFF + PT_V9_I2] - stx %i3, [%sp + PTREGS_OFF + PT_V9_I3] - stx %i4, [%sp + PTREGS_OFF + PT_V9_I4] - stx %i5, [%sp + PTREGS_OFF + PT_V9_I5] - stx %i6, [%sp + PTREGS_OFF + PT_V9_I6] - mov %l6, %g6 - stx %i7, [%sp + PTREGS_OFF + PT_V9_I7] - LOAD_PER_CPU_BASE(%g5, %g6, %g4, %g3, %l1) - ldx [%g6 + TI_TASK], %g4 - done - -3: mov ASI_P, %l7 - ldub [%l6 + TI_FPDEPTH], %l5 - add %l6, TI_FPSAVED + 1, %l4 - srl %l5, 1, %l3 - add %l5, 2, %l5 - stb %l5, [%l6 + TI_FPDEPTH] - ba,pt %xcc, 2b - stb %g0, [%l4 + %l3] - nop - -etraptl1: /* Save tstate/tpc/tnpc of TL 1-->4 and the tl register itself. - * We place this right after pt_regs on the trap stack. - * The layout is: - * 0x00 TL1's TSTATE - * 0x08 TL1's TPC - * 0x10 TL1's TNPC - * 0x18 TL1's TT - * ... - * 0x58 TL4's TT - * 0x60 TL - */ - TRAP_LOAD_THREAD_REG(%g6, %g1) - sub %sp, ((4 * 8) * 4) + 8, %g2 - rdpr %tl, %g1 - - wrpr %g0, 1, %tl - rdpr %tstate, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x00] - rdpr %tpc, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x08] - rdpr %tnpc, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x10] - rdpr %tt, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x18] - - wrpr %g0, 2, %tl - rdpr %tstate, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x20] - rdpr %tpc, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x28] - rdpr %tnpc, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x30] - rdpr %tt, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x38] - - sethi %hi(is_sun4v), %g3 - lduw [%g3 + %lo(is_sun4v)], %g3 - brnz,pn %g3, finish_tl1_capture - nop - - wrpr %g0, 3, %tl - rdpr %tstate, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x40] - rdpr %tpc, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x48] - rdpr %tnpc, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x50] - rdpr %tt, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x58] - - wrpr %g0, 4, %tl - rdpr %tstate, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x60] - rdpr %tpc, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x68] - rdpr %tnpc, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x70] - rdpr %tt, %g3 - stx %g3, [%g2 + STACK_BIAS + 0x78] - - stx %g1, [%g2 + STACK_BIAS + 0x80] - -finish_tl1_capture: - wrpr %g0, 1, %tl -661: nop - .section .sun4v_1insn_patch, "ax" - .word 661b - SET_GL(1) - .previous - - rdpr %tstate, %g1 - sub %g2, STACKFRAME_SZ + TRACEREG_SZ - STACK_BIAS, %g2 - ba,pt %xcc, 1b - andcc %g1, TSTATE_PRIV, %g0 - -#undef TASK_REGOFF -#undef ETRAP_PSTATE1 diff --git a/arch/sparc64/kernel/fpu_traps.S b/arch/sparc64/kernel/fpu_traps.S deleted file mode 100644 index a6864826a4bd..000000000000 --- a/arch/sparc64/kernel/fpu_traps.S +++ /dev/null @@ -1,384 +0,0 @@ - /* This is trivial with the new code... */ - .globl do_fpdis - .type do_fpdis,#function -do_fpdis: - sethi %hi(TSTATE_PEF), %g4 - rdpr %tstate, %g5 - andcc %g5, %g4, %g0 - be,pt %xcc, 1f - nop - rd %fprs, %g5 - andcc %g5, FPRS_FEF, %g0 - be,pt %xcc, 1f - nop - - /* Legal state when DCR_IFPOE is set in Cheetah %dcr. */ - sethi %hi(109f), %g7 - ba,pt %xcc, etrap -109: or %g7, %lo(109b), %g7 - add %g0, %g0, %g0 - ba,a,pt %xcc, rtrap - -1: TRAP_LOAD_THREAD_REG(%g6, %g1) - ldub [%g6 + TI_FPSAVED], %g5 - wr %g0, FPRS_FEF, %fprs - andcc %g5, FPRS_FEF, %g0 - be,a,pt %icc, 1f - clr %g7 - ldx [%g6 + TI_GSR], %g7 -1: andcc %g5, FPRS_DL, %g0 - bne,pn %icc, 2f - fzero %f0 - andcc %g5, FPRS_DU, %g0 - bne,pn %icc, 1f - fzero %f2 - faddd %f0, %f2, %f4 - fmuld %f0, %f2, %f6 - faddd %f0, %f2, %f8 - fmuld %f0, %f2, %f10 - faddd %f0, %f2, %f12 - fmuld %f0, %f2, %f14 - faddd %f0, %f2, %f16 - fmuld %f0, %f2, %f18 - faddd %f0, %f2, %f20 - fmuld %f0, %f2, %f22 - faddd %f0, %f2, %f24 - fmuld %f0, %f2, %f26 - faddd %f0, %f2, %f28 - fmuld %f0, %f2, %f30 - faddd %f0, %f2, %f32 - fmuld %f0, %f2, %f34 - faddd %f0, %f2, %f36 - fmuld %f0, %f2, %f38 - faddd %f0, %f2, %f40 - fmuld %f0, %f2, %f42 - faddd %f0, %f2, %f44 - fmuld %f0, %f2, %f46 - faddd %f0, %f2, %f48 - fmuld %f0, %f2, %f50 - faddd %f0, %f2, %f52 - fmuld %f0, %f2, %f54 - faddd %f0, %f2, %f56 - fmuld %f0, %f2, %f58 - b,pt %xcc, fpdis_exit2 - faddd %f0, %f2, %f60 -1: mov SECONDARY_CONTEXT, %g3 - add %g6, TI_FPREGS + 0x80, %g1 - faddd %f0, %f2, %f4 - fmuld %f0, %f2, %f6 - -661: ldxa [%g3] ASI_DMMU, %g5 - .section .sun4v_1insn_patch, "ax" - .word 661b - ldxa [%g3] ASI_MMU, %g5 - .previous - - sethi %hi(sparc64_kern_sec_context), %g2 - ldx [%g2 + %lo(sparc64_kern_sec_context)], %g2 - -661: stxa %g2, [%g3] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %g2, [%g3] ASI_MMU - .previous - - membar #Sync - add %g6, TI_FPREGS + 0xc0, %g2 - faddd %f0, %f2, %f8 - fmuld %f0, %f2, %f10 - membar #Sync - ldda [%g1] ASI_BLK_S, %f32 - ldda [%g2] ASI_BLK_S, %f48 - membar #Sync - faddd %f0, %f2, %f12 - fmuld %f0, %f2, %f14 - faddd %f0, %f2, %f16 - fmuld %f0, %f2, %f18 - faddd %f0, %f2, %f20 - fmuld %f0, %f2, %f22 - faddd %f0, %f2, %f24 - fmuld %f0, %f2, %f26 - faddd %f0, %f2, %f28 - fmuld %f0, %f2, %f30 - b,pt %xcc, fpdis_exit - nop -2: andcc %g5, FPRS_DU, %g0 - bne,pt %icc, 3f - fzero %f32 - mov SECONDARY_CONTEXT, %g3 - fzero %f34 - -661: ldxa [%g3] ASI_DMMU, %g5 - .section .sun4v_1insn_patch, "ax" - .word 661b - ldxa [%g3] ASI_MMU, %g5 - .previous - - add %g6, TI_FPREGS, %g1 - sethi %hi(sparc64_kern_sec_context), %g2 - ldx [%g2 + %lo(sparc64_kern_sec_context)], %g2 - -661: stxa %g2, [%g3] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %g2, [%g3] ASI_MMU - .previous - - membar #Sync - add %g6, TI_FPREGS + 0x40, %g2 - faddd %f32, %f34, %f36 - fmuld %f32, %f34, %f38 - membar #Sync - ldda [%g1] ASI_BLK_S, %f0 - ldda [%g2] ASI_BLK_S, %f16 - membar #Sync - faddd %f32, %f34, %f40 - fmuld %f32, %f34, %f42 - faddd %f32, %f34, %f44 - fmuld %f32, %f34, %f46 - faddd %f32, %f34, %f48 - fmuld %f32, %f34, %f50 - faddd %f32, %f34, %f52 - fmuld %f32, %f34, %f54 - faddd %f32, %f34, %f56 - fmuld %f32, %f34, %f58 - faddd %f32, %f34, %f60 - fmuld %f32, %f34, %f62 - ba,pt %xcc, fpdis_exit - nop -3: mov SECONDARY_CONTEXT, %g3 - add %g6, TI_FPREGS, %g1 - -661: ldxa [%g3] ASI_DMMU, %g5 - .section .sun4v_1insn_patch, "ax" - .word 661b - ldxa [%g3] ASI_MMU, %g5 - .previous - - sethi %hi(sparc64_kern_sec_context), %g2 - ldx [%g2 + %lo(sparc64_kern_sec_context)], %g2 - -661: stxa %g2, [%g3] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %g2, [%g3] ASI_MMU - .previous - - membar #Sync - mov 0x40, %g2 - membar #Sync - ldda [%g1] ASI_BLK_S, %f0 - ldda [%g1 + %g2] ASI_BLK_S, %f16 - add %g1, 0x80, %g1 - ldda [%g1] ASI_BLK_S, %f32 - ldda [%g1 + %g2] ASI_BLK_S, %f48 - membar #Sync -fpdis_exit: - -661: stxa %g5, [%g3] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %g5, [%g3] ASI_MMU - .previous - - membar #Sync -fpdis_exit2: - wr %g7, 0, %gsr - ldx [%g6 + TI_XFSR], %fsr - rdpr %tstate, %g3 - or %g3, %g4, %g3 ! anal... - wrpr %g3, %tstate - wr %g0, FPRS_FEF, %fprs ! clean DU/DL bits - retry - .size do_fpdis,.-do_fpdis - - .align 32 - .type fp_other_bounce,#function -fp_other_bounce: - call do_fpother - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - .size fp_other_bounce,.-fp_other_bounce - - .align 32 - .globl do_fpother_check_fitos - .type do_fpother_check_fitos,#function -do_fpother_check_fitos: - TRAP_LOAD_THREAD_REG(%g6, %g1) - sethi %hi(fp_other_bounce - 4), %g7 - or %g7, %lo(fp_other_bounce - 4), %g7 - - /* NOTE: Need to preserve %g7 until we fully commit - * to the fitos fixup. - */ - stx %fsr, [%g6 + TI_XFSR] - rdpr %tstate, %g3 - andcc %g3, TSTATE_PRIV, %g0 - bne,pn %xcc, do_fptrap_after_fsr - nop - ldx [%g6 + TI_XFSR], %g3 - srlx %g3, 14, %g1 - and %g1, 7, %g1 - cmp %g1, 2 ! Unfinished FP-OP - bne,pn %xcc, do_fptrap_after_fsr - sethi %hi(1 << 23), %g1 ! Inexact - andcc %g3, %g1, %g0 - bne,pn %xcc, do_fptrap_after_fsr - rdpr %tpc, %g1 - lduwa [%g1] ASI_AIUP, %g3 ! This cannot ever fail -#define FITOS_MASK 0xc1f83fe0 -#define FITOS_COMPARE 0x81a01880 - sethi %hi(FITOS_MASK), %g1 - or %g1, %lo(FITOS_MASK), %g1 - and %g3, %g1, %g1 - sethi %hi(FITOS_COMPARE), %g2 - or %g2, %lo(FITOS_COMPARE), %g2 - cmp %g1, %g2 - bne,pn %xcc, do_fptrap_after_fsr - nop - std %f62, [%g6 + TI_FPREGS + (62 * 4)] - sethi %hi(fitos_table_1), %g1 - and %g3, 0x1f, %g2 - or %g1, %lo(fitos_table_1), %g1 - sllx %g2, 2, %g2 - jmpl %g1 + %g2, %g0 - ba,pt %xcc, fitos_emul_continue - -fitos_table_1: - fitod %f0, %f62 - fitod %f1, %f62 - fitod %f2, %f62 - fitod %f3, %f62 - fitod %f4, %f62 - fitod %f5, %f62 - fitod %f6, %f62 - fitod %f7, %f62 - fitod %f8, %f62 - fitod %f9, %f62 - fitod %f10, %f62 - fitod %f11, %f62 - fitod %f12, %f62 - fitod %f13, %f62 - fitod %f14, %f62 - fitod %f15, %f62 - fitod %f16, %f62 - fitod %f17, %f62 - fitod %f18, %f62 - fitod %f19, %f62 - fitod %f20, %f62 - fitod %f21, %f62 - fitod %f22, %f62 - fitod %f23, %f62 - fitod %f24, %f62 - fitod %f25, %f62 - fitod %f26, %f62 - fitod %f27, %f62 - fitod %f28, %f62 - fitod %f29, %f62 - fitod %f30, %f62 - fitod %f31, %f62 - -fitos_emul_continue: - sethi %hi(fitos_table_2), %g1 - srl %g3, 25, %g2 - or %g1, %lo(fitos_table_2), %g1 - and %g2, 0x1f, %g2 - sllx %g2, 2, %g2 - jmpl %g1 + %g2, %g0 - ba,pt %xcc, fitos_emul_fini - -fitos_table_2: - fdtos %f62, %f0 - fdtos %f62, %f1 - fdtos %f62, %f2 - fdtos %f62, %f3 - fdtos %f62, %f4 - fdtos %f62, %f5 - fdtos %f62, %f6 - fdtos %f62, %f7 - fdtos %f62, %f8 - fdtos %f62, %f9 - fdtos %f62, %f10 - fdtos %f62, %f11 - fdtos %f62, %f12 - fdtos %f62, %f13 - fdtos %f62, %f14 - fdtos %f62, %f15 - fdtos %f62, %f16 - fdtos %f62, %f17 - fdtos %f62, %f18 - fdtos %f62, %f19 - fdtos %f62, %f20 - fdtos %f62, %f21 - fdtos %f62, %f22 - fdtos %f62, %f23 - fdtos %f62, %f24 - fdtos %f62, %f25 - fdtos %f62, %f26 - fdtos %f62, %f27 - fdtos %f62, %f28 - fdtos %f62, %f29 - fdtos %f62, %f30 - fdtos %f62, %f31 - -fitos_emul_fini: - ldd [%g6 + TI_FPREGS + (62 * 4)], %f62 - done - .size do_fpother_check_fitos,.-do_fpother_check_fitos - - .align 32 - .globl do_fptrap - .type do_fptrap,#function -do_fptrap: - TRAP_LOAD_THREAD_REG(%g6, %g1) - stx %fsr, [%g6 + TI_XFSR] -do_fptrap_after_fsr: - ldub [%g6 + TI_FPSAVED], %g3 - rd %fprs, %g1 - or %g3, %g1, %g3 - stb %g3, [%g6 + TI_FPSAVED] - rd %gsr, %g3 - stx %g3, [%g6 + TI_GSR] - mov SECONDARY_CONTEXT, %g3 - -661: ldxa [%g3] ASI_DMMU, %g5 - .section .sun4v_1insn_patch, "ax" - .word 661b - ldxa [%g3] ASI_MMU, %g5 - .previous - - sethi %hi(sparc64_kern_sec_context), %g2 - ldx [%g2 + %lo(sparc64_kern_sec_context)], %g2 - -661: stxa %g2, [%g3] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %g2, [%g3] ASI_MMU - .previous - - membar #Sync - add %g6, TI_FPREGS, %g2 - andcc %g1, FPRS_DL, %g0 - be,pn %icc, 4f - mov 0x40, %g3 - stda %f0, [%g2] ASI_BLK_S - stda %f16, [%g2 + %g3] ASI_BLK_S - andcc %g1, FPRS_DU, %g0 - be,pn %icc, 5f -4: add %g2, 128, %g2 - stda %f32, [%g2] ASI_BLK_S - stda %f48, [%g2 + %g3] ASI_BLK_S -5: mov SECONDARY_CONTEXT, %g1 - membar #Sync - -661: stxa %g5, [%g1] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %g5, [%g1] ASI_MMU - .previous - - membar #Sync - ba,pt %xcc, etrap - wr %g0, 0, %fprs - .size do_fptrap,.-do_fptrap diff --git a/arch/sparc64/kernel/ftrace.c b/arch/sparc64/kernel/ftrace.c deleted file mode 100644 index d0218e73f982..000000000000 --- a/arch/sparc64/kernel/ftrace.c +++ /dev/null @@ -1,76 +0,0 @@ -#include <linux/spinlock.h> -#include <linux/hardirq.h> -#include <linux/ftrace.h> -#include <linux/percpu.h> -#include <linux/init.h> -#include <linux/list.h> - -#include <asm/ftrace.h> - -static const u32 ftrace_nop = 0x01000000; - -unsigned char *ftrace_nop_replace(void) -{ - return (char *)&ftrace_nop; -} - -unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr) -{ - static u32 call; - s32 off; - - off = ((s32)addr - (s32)ip); - call = 0x40000000 | ((u32)off >> 2); - - return (unsigned char *) &call; -} - -int -ftrace_modify_code(unsigned long ip, unsigned char *old_code, - unsigned char *new_code) -{ - u32 old = *(u32 *)old_code; - u32 new = *(u32 *)new_code; - u32 replaced; - int faulted; - - __asm__ __volatile__( - "1: cas [%[ip]], %[old], %[new]\n" - " flush %[ip]\n" - " mov 0, %[faulted]\n" - "2:\n" - " .section .fixup,#alloc,#execinstr\n" - " .align 4\n" - "3: sethi %%hi(2b), %[faulted]\n" - " jmpl %[faulted] + %%lo(2b), %%g0\n" - " mov 1, %[faulted]\n" - " .previous\n" - " .section __ex_table,\"a\"\n" - " .align 4\n" - " .word 1b, 3b\n" - " .previous\n" - : "=r" (replaced), [faulted] "=r" (faulted) - : [new] "0" (new), [old] "r" (old), [ip] "r" (ip) - : "memory"); - - if (replaced != old && replaced != new) - faulted = 2; - - return faulted; -} - -int ftrace_update_ftrace_func(ftrace_func_t func) -{ - unsigned long ip = (unsigned long)(&ftrace_call); - unsigned char old[MCOUNT_INSN_SIZE], *new; - - memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE); - new = ftrace_call_replace(ip, (unsigned long)func); - return ftrace_modify_code(ip, old, new); -} - -int __init ftrace_dyn_arch_init(void *data) -{ - ftrace_mcount_set(data); - return 0; -} diff --git a/arch/sparc64/kernel/getsetcc.S b/arch/sparc64/kernel/getsetcc.S deleted file mode 100644 index a14d272d2061..000000000000 --- a/arch/sparc64/kernel/getsetcc.S +++ /dev/null @@ -1,24 +0,0 @@ - .globl getcc - .type getcc,#function -getcc: - ldx [%o0 + PT_V9_TSTATE], %o1 - srlx %o1, 32, %o1 - and %o1, 0xf, %o1 - retl - stx %o1, [%o0 + PT_V9_G1] - .size getcc,.-getcc - - .globl setcc - .type setcc,#function -setcc: - ldx [%o0 + PT_V9_TSTATE], %o1 - ldx [%o0 + PT_V9_G1], %o2 - or %g0, %ulo(TSTATE_ICC), %o3 - sllx %o3, 32, %o3 - andn %o1, %o3, %o1 - sllx %o2, 32, %o2 - and %o2, %o3, %o2 - or %o1, %o2, %o1 - retl - stx %o1, [%o0 + PT_V9_TSTATE] - .size setcc,.-setcc diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S deleted file mode 100644 index 353226fa0239..000000000000 --- a/arch/sparc64/kernel/head.S +++ /dev/null @@ -1,900 +0,0 @@ -/* head.S: Initial boot code for the Sparc64 port of Linux. - * - * Copyright (C) 1996, 1997, 2007 David S. Miller (davem@davemloft.net) - * Copyright (C) 1996 David Sitsky (David.Sitsky@anu.edu.au) - * Copyright (C) 1997, 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - * Copyright (C) 1997 Miguel de Icaza (miguel@nuclecu.unam.mx) - */ - -#include <linux/version.h> -#include <linux/errno.h> -#include <linux/threads.h> -#include <linux/init.h> -#include <linux/linkage.h> -#include <asm/thread_info.h> -#include <asm/asi.h> -#include <asm/pstate.h> -#include <asm/ptrace.h> -#include <asm/spitfire.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/errno.h> -#include <asm/signal.h> -#include <asm/processor.h> -#include <asm/lsu.h> -#include <asm/dcr.h> -#include <asm/dcu.h> -#include <asm/head.h> -#include <asm/ttable.h> -#include <asm/mmu.h> -#include <asm/cpudata.h> -#include <asm/pil.h> -#include <asm/estate.h> -#include <asm/sfafsr.h> -#include <asm/unistd.h> - -/* This section from from _start to sparc64_boot_end should fit into - * 0x0000000000404000 to 0x0000000000408000. - */ - .text - .globl start, _start, stext, _stext -_start: -start: -_stext: -stext: -! 0x0000000000404000 - b sparc64_boot - flushw /* Flush register file. */ - -/* This stuff has to be in sync with SILO and other potential boot loaders - * Fields should be kept upward compatible and whenever any change is made, - * HdrS version should be incremented. - */ - .global root_flags, ram_flags, root_dev - .global sparc_ramdisk_image, sparc_ramdisk_size - .global sparc_ramdisk_image64 - - .ascii "HdrS" - .word LINUX_VERSION_CODE - - /* History: - * - * 0x0300 : Supports being located at other than 0x4000 - * 0x0202 : Supports kernel params string - * 0x0201 : Supports reboot_command - */ - .half 0x0301 /* HdrS version */ - -root_flags: - .half 1 -root_dev: - .half 0 -ram_flags: - .half 0 -sparc_ramdisk_image: - .word 0 -sparc_ramdisk_size: - .word 0 - .xword reboot_command - .xword bootstr_info -sparc_ramdisk_image64: - .xword 0 - .word _end - - /* PROM cif handler code address is in %o4. */ -sparc64_boot: - mov %o4, %l7 - - /* We need to remap the kernel. Use position independant - * code to remap us to KERNBASE. - * - * SILO can invoke us with 32-bit address masking enabled, - * so make sure that's clear. - */ - rdpr %pstate, %g1 - andn %g1, PSTATE_AM, %g1 - wrpr %g1, 0x0, %pstate - ba,a,pt %xcc, 1f - - .globl prom_finddev_name, prom_chosen_path, prom_root_node - .globl prom_getprop_name, prom_mmu_name, prom_peer_name - .globl prom_callmethod_name, prom_translate_name, prom_root_compatible - .globl prom_map_name, prom_unmap_name, prom_mmu_ihandle_cache - .globl prom_boot_mapped_pc, prom_boot_mapping_mode - .globl prom_boot_mapping_phys_high, prom_boot_mapping_phys_low - .globl prom_compatible_name, prom_cpu_path, prom_cpu_compatible - .globl is_sun4v, sun4v_chip_type, prom_set_trap_table_name -prom_peer_name: - .asciz "peer" -prom_compatible_name: - .asciz "compatible" -prom_finddev_name: - .asciz "finddevice" -prom_chosen_path: - .asciz "/chosen" -prom_cpu_path: - .asciz "/cpu" -prom_getprop_name: - .asciz "getprop" -prom_mmu_name: - .asciz "mmu" -prom_callmethod_name: - .asciz "call-method" -prom_translate_name: - .asciz "translate" -prom_map_name: - .asciz "map" -prom_unmap_name: - .asciz "unmap" -prom_set_trap_table_name: - .asciz "SUNW,set-trap-table" -prom_sun4v_name: - .asciz "sun4v" -prom_niagara_prefix: - .asciz "SUNW,UltraSPARC-T" - .align 4 -prom_root_compatible: - .skip 64 -prom_cpu_compatible: - .skip 64 -prom_root_node: - .word 0 -prom_mmu_ihandle_cache: - .word 0 -prom_boot_mapped_pc: - .word 0 -prom_boot_mapping_mode: - .word 0 - .align 8 -prom_boot_mapping_phys_high: - .xword 0 -prom_boot_mapping_phys_low: - .xword 0 -is_sun4v: - .word 0 -sun4v_chip_type: - .word SUN4V_CHIP_INVALID -1: - rd %pc, %l0 - - mov (1b - prom_peer_name), %l1 - sub %l0, %l1, %l1 - mov 0, %l2 - - /* prom_root_node = prom_peer(0) */ - stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "peer" - mov 1, %l3 - stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 1 - stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1 - stx %l2, [%sp + 2047 + 128 + 0x18] ! arg1, 0 - stx %g0, [%sp + 2047 + 128 + 0x20] ! ret1 - call %l7 - add %sp, (2047 + 128), %o0 ! argument array - - ldx [%sp + 2047 + 128 + 0x20], %l4 ! prom root node - mov (1b - prom_root_node), %l1 - sub %l0, %l1, %l1 - stw %l4, [%l1] - - mov (1b - prom_getprop_name), %l1 - mov (1b - prom_compatible_name), %l2 - mov (1b - prom_root_compatible), %l5 - sub %l0, %l1, %l1 - sub %l0, %l2, %l2 - sub %l0, %l5, %l5 - - /* prom_getproperty(prom_root_node, "compatible", - * &prom_root_compatible, 64) - */ - stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "getprop" - mov 4, %l3 - stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 4 - mov 1, %l3 - stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1 - stx %l4, [%sp + 2047 + 128 + 0x18] ! arg1, prom_root_node - stx %l2, [%sp + 2047 + 128 + 0x20] ! arg2, "compatible" - stx %l5, [%sp + 2047 + 128 + 0x28] ! arg3, &prom_root_compatible - mov 64, %l3 - stx %l3, [%sp + 2047 + 128 + 0x30] ! arg4, size - stx %g0, [%sp + 2047 + 128 + 0x38] ! ret1 - call %l7 - add %sp, (2047 + 128), %o0 ! argument array - - mov (1b - prom_finddev_name), %l1 - mov (1b - prom_chosen_path), %l2 - mov (1b - prom_boot_mapped_pc), %l3 - sub %l0, %l1, %l1 - sub %l0, %l2, %l2 - sub %l0, %l3, %l3 - stw %l0, [%l3] - sub %sp, (192 + 128), %sp - - /* chosen_node = prom_finddevice("/chosen") */ - stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "finddevice" - mov 1, %l3 - stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 1 - stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1 - stx %l2, [%sp + 2047 + 128 + 0x18] ! arg1, "/chosen" - stx %g0, [%sp + 2047 + 128 + 0x20] ! ret1 - call %l7 - add %sp, (2047 + 128), %o0 ! argument array - - ldx [%sp + 2047 + 128 + 0x20], %l4 ! chosen device node - - mov (1b - prom_getprop_name), %l1 - mov (1b - prom_mmu_name), %l2 - mov (1b - prom_mmu_ihandle_cache), %l5 - sub %l0, %l1, %l1 - sub %l0, %l2, %l2 - sub %l0, %l5, %l5 - - /* prom_mmu_ihandle_cache = prom_getint(chosen_node, "mmu") */ - stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "getprop" - mov 4, %l3 - stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 4 - mov 1, %l3 - stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1 - stx %l4, [%sp + 2047 + 128 + 0x18] ! arg1, chosen_node - stx %l2, [%sp + 2047 + 128 + 0x20] ! arg2, "mmu" - stx %l5, [%sp + 2047 + 128 + 0x28] ! arg3, &prom_mmu_ihandle_cache - mov 4, %l3 - stx %l3, [%sp + 2047 + 128 + 0x30] ! arg4, sizeof(arg3) - stx %g0, [%sp + 2047 + 128 + 0x38] ! ret1 - call %l7 - add %sp, (2047 + 128), %o0 ! argument array - - mov (1b - prom_callmethod_name), %l1 - mov (1b - prom_translate_name), %l2 - sub %l0, %l1, %l1 - sub %l0, %l2, %l2 - lduw [%l5], %l5 ! prom_mmu_ihandle_cache - - stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "call-method" - mov 3, %l3 - stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 3 - mov 5, %l3 - stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 5 - stx %l2, [%sp + 2047 + 128 + 0x18] ! arg1: "translate" - stx %l5, [%sp + 2047 + 128 + 0x20] ! arg2: prom_mmu_ihandle_cache - /* PAGE align */ - srlx %l0, 13, %l3 - sllx %l3, 13, %l3 - stx %l3, [%sp + 2047 + 128 + 0x28] ! arg3: vaddr, our PC - stx %g0, [%sp + 2047 + 128 + 0x30] ! res1 - stx %g0, [%sp + 2047 + 128 + 0x38] ! res2 - stx %g0, [%sp + 2047 + 128 + 0x40] ! res3 - stx %g0, [%sp + 2047 + 128 + 0x48] ! res4 - stx %g0, [%sp + 2047 + 128 + 0x50] ! res5 - call %l7 - add %sp, (2047 + 128), %o0 ! argument array - - ldx [%sp + 2047 + 128 + 0x40], %l1 ! translation mode - mov (1b - prom_boot_mapping_mode), %l4 - sub %l0, %l4, %l4 - stw %l1, [%l4] - mov (1b - prom_boot_mapping_phys_high), %l4 - sub %l0, %l4, %l4 - ldx [%sp + 2047 + 128 + 0x48], %l2 ! physaddr high - stx %l2, [%l4 + 0x0] - ldx [%sp + 2047 + 128 + 0x50], %l3 ! physaddr low - /* 4MB align */ - srlx %l3, 22, %l3 - sllx %l3, 22, %l3 - stx %l3, [%l4 + 0x8] - - /* Leave service as-is, "call-method" */ - mov 7, %l3 - stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 7 - mov 1, %l3 - stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1 - mov (1b - prom_map_name), %l3 - sub %l0, %l3, %l3 - stx %l3, [%sp + 2047 + 128 + 0x18] ! arg1: "map" - /* Leave arg2 as-is, prom_mmu_ihandle_cache */ - mov -1, %l3 - stx %l3, [%sp + 2047 + 128 + 0x28] ! arg3: mode (-1 default) - /* 4MB align the kernel image size. */ - set (_end - KERNBASE), %l3 - set ((4 * 1024 * 1024) - 1), %l4 - add %l3, %l4, %l3 - andn %l3, %l4, %l3 - stx %l3, [%sp + 2047 + 128 + 0x30] ! arg4: roundup(ksize, 4MB) - sethi %hi(KERNBASE), %l3 - stx %l3, [%sp + 2047 + 128 + 0x38] ! arg5: vaddr (KERNBASE) - stx %g0, [%sp + 2047 + 128 + 0x40] ! arg6: empty - mov (1b - prom_boot_mapping_phys_low), %l3 - sub %l0, %l3, %l3 - ldx [%l3], %l3 - stx %l3, [%sp + 2047 + 128 + 0x48] ! arg7: phys addr - call %l7 - add %sp, (2047 + 128), %o0 ! argument array - - add %sp, (192 + 128), %sp - - sethi %hi(prom_root_compatible), %g1 - or %g1, %lo(prom_root_compatible), %g1 - sethi %hi(prom_sun4v_name), %g7 - or %g7, %lo(prom_sun4v_name), %g7 - mov 5, %g3 -90: ldub [%g7], %g2 - ldub [%g1], %g4 - cmp %g2, %g4 - bne,pn %icc, 80f - add %g7, 1, %g7 - subcc %g3, 1, %g3 - bne,pt %xcc, 90b - add %g1, 1, %g1 - - sethi %hi(is_sun4v), %g1 - or %g1, %lo(is_sun4v), %g1 - mov 1, %g7 - stw %g7, [%g1] - - /* cpu_node = prom_finddevice("/cpu") */ - mov (1b - prom_finddev_name), %l1 - mov (1b - prom_cpu_path), %l2 - sub %l0, %l1, %l1 - sub %l0, %l2, %l2 - sub %sp, (192 + 128), %sp - - stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "finddevice" - mov 1, %l3 - stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 1 - stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1 - stx %l2, [%sp + 2047 + 128 + 0x18] ! arg1, "/cpu" - stx %g0, [%sp + 2047 + 128 + 0x20] ! ret1 - call %l7 - add %sp, (2047 + 128), %o0 ! argument array - - ldx [%sp + 2047 + 128 + 0x20], %l4 ! cpu device node - - mov (1b - prom_getprop_name), %l1 - mov (1b - prom_compatible_name), %l2 - mov (1b - prom_cpu_compatible), %l5 - sub %l0, %l1, %l1 - sub %l0, %l2, %l2 - sub %l0, %l5, %l5 - - /* prom_getproperty(cpu_node, "compatible", - * &prom_cpu_compatible, 64) - */ - stx %l1, [%sp + 2047 + 128 + 0x00] ! service, "getprop" - mov 4, %l3 - stx %l3, [%sp + 2047 + 128 + 0x08] ! num_args, 4 - mov 1, %l3 - stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 1 - stx %l4, [%sp + 2047 + 128 + 0x18] ! arg1, cpu_node - stx %l2, [%sp + 2047 + 128 + 0x20] ! arg2, "compatible" - stx %l5, [%sp + 2047 + 128 + 0x28] ! arg3, &prom_cpu_compatible - mov 64, %l3 - stx %l3, [%sp + 2047 + 128 + 0x30] ! arg4, size - stx %g0, [%sp + 2047 + 128 + 0x38] ! ret1 - call %l7 - add %sp, (2047 + 128), %o0 ! argument array - - add %sp, (192 + 128), %sp - - sethi %hi(prom_cpu_compatible), %g1 - or %g1, %lo(prom_cpu_compatible), %g1 - sethi %hi(prom_niagara_prefix), %g7 - or %g7, %lo(prom_niagara_prefix), %g7 - mov 17, %g3 -90: ldub [%g7], %g2 - ldub [%g1], %g4 - cmp %g2, %g4 - bne,pn %icc, 4f - add %g7, 1, %g7 - subcc %g3, 1, %g3 - bne,pt %xcc, 90b - add %g1, 1, %g1 - - sethi %hi(prom_cpu_compatible), %g1 - or %g1, %lo(prom_cpu_compatible), %g1 - ldub [%g1 + 17], %g2 - cmp %g2, '1' - be,pt %xcc, 5f - mov SUN4V_CHIP_NIAGARA1, %g4 - cmp %g2, '2' - be,pt %xcc, 5f - mov SUN4V_CHIP_NIAGARA2, %g4 -4: - mov SUN4V_CHIP_UNKNOWN, %g4 -5: sethi %hi(sun4v_chip_type), %g2 - or %g2, %lo(sun4v_chip_type), %g2 - stw %g4, [%g2] - -80: - BRANCH_IF_SUN4V(g1, jump_to_sun4u_init) - BRANCH_IF_CHEETAH_BASE(g1,g7,cheetah_boot) - BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1,g7,cheetah_plus_boot) - ba,pt %xcc, spitfire_boot - nop - -cheetah_plus_boot: - /* Preserve OBP chosen DCU and DCR register settings. */ - ba,pt %xcc, cheetah_generic_boot - nop - -cheetah_boot: - mov DCR_BPE | DCR_RPE | DCR_SI | DCR_IFPOE | DCR_MS, %g1 - wr %g1, %asr18 - - sethi %uhi(DCU_ME|DCU_RE|DCU_HPE|DCU_SPE|DCU_SL|DCU_WE), %g7 - or %g7, %ulo(DCU_ME|DCU_RE|DCU_HPE|DCU_SPE|DCU_SL|DCU_WE), %g7 - sllx %g7, 32, %g7 - or %g7, DCU_DM | DCU_IM | DCU_DC | DCU_IC, %g7 - stxa %g7, [%g0] ASI_DCU_CONTROL_REG - membar #Sync - -cheetah_generic_boot: - mov TSB_EXTENSION_P, %g3 - stxa %g0, [%g3] ASI_DMMU - stxa %g0, [%g3] ASI_IMMU - membar #Sync - - mov TSB_EXTENSION_S, %g3 - stxa %g0, [%g3] ASI_DMMU - membar #Sync - - mov TSB_EXTENSION_N, %g3 - stxa %g0, [%g3] ASI_DMMU - stxa %g0, [%g3] ASI_IMMU - membar #Sync - - ba,a,pt %xcc, jump_to_sun4u_init - -spitfire_boot: - /* Typically PROM has already enabled both MMU's and both on-chip - * caches, but we do it here anyway just to be paranoid. - */ - mov (LSU_CONTROL_IC|LSU_CONTROL_DC|LSU_CONTROL_IM|LSU_CONTROL_DM), %g1 - stxa %g1, [%g0] ASI_LSU_CONTROL - membar #Sync - -jump_to_sun4u_init: - /* - * Make sure we are in privileged mode, have address masking, - * using the ordinary globals and have enabled floating - * point. - * - * Again, typically PROM has left %pil at 13 or similar, and - * (PSTATE_PRIV | PSTATE_PEF | PSTATE_IE) in %pstate. - */ - wrpr %g0, (PSTATE_PRIV|PSTATE_PEF|PSTATE_IE), %pstate - wr %g0, 0, %fprs - - set sun4u_init, %g2 - jmpl %g2 + %g0, %g0 - nop - - .section .text.init.refok -sun4u_init: - BRANCH_IF_SUN4V(g1, sun4v_init) - - /* Set ctx 0 */ - mov PRIMARY_CONTEXT, %g7 - stxa %g0, [%g7] ASI_DMMU - membar #Sync - - mov SECONDARY_CONTEXT, %g7 - stxa %g0, [%g7] ASI_DMMU - membar #Sync - - ba,pt %xcc, sun4u_continue - nop - -sun4v_init: - /* Set ctx 0 */ - mov PRIMARY_CONTEXT, %g7 - stxa %g0, [%g7] ASI_MMU - membar #Sync - - mov SECONDARY_CONTEXT, %g7 - stxa %g0, [%g7] ASI_MMU - membar #Sync - ba,pt %xcc, niagara_tlb_fixup - nop - -sun4u_continue: - BRANCH_IF_ANY_CHEETAH(g1, g7, cheetah_tlb_fixup) - - ba,pt %xcc, spitfire_tlb_fixup - nop - -niagara_tlb_fixup: - mov 3, %g2 /* Set TLB type to hypervisor. */ - sethi %hi(tlb_type), %g1 - stw %g2, [%g1 + %lo(tlb_type)] - - /* Patch copy/clear ops. */ - sethi %hi(sun4v_chip_type), %g1 - lduw [%g1 + %lo(sun4v_chip_type)], %g1 - cmp %g1, SUN4V_CHIP_NIAGARA1 - be,pt %xcc, niagara_patch - cmp %g1, SUN4V_CHIP_NIAGARA2 - be,pt %xcc, niagara2_patch - nop - - call generic_patch_copyops - nop - call generic_patch_bzero - nop - call generic_patch_pageops - nop - - ba,a,pt %xcc, 80f -niagara2_patch: - call niagara2_patch_copyops - nop - call niagara_patch_bzero - nop - call niagara2_patch_pageops - nop - - ba,a,pt %xcc, 80f - -niagara_patch: - call niagara_patch_copyops - nop - call niagara_patch_bzero - nop - call niagara_patch_pageops - nop - -80: - /* Patch TLB/cache ops. */ - call hypervisor_patch_cachetlbops - nop - - ba,pt %xcc, tlb_fixup_done - nop - -cheetah_tlb_fixup: - mov 2, %g2 /* Set TLB type to cheetah+. */ - BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1,g7,1f) - - mov 1, %g2 /* Set TLB type to cheetah. */ - -1: sethi %hi(tlb_type), %g1 - stw %g2, [%g1 + %lo(tlb_type)] - - /* Patch copy/page operations to cheetah optimized versions. */ - call cheetah_patch_copyops - nop - call cheetah_patch_copy_page - nop - call cheetah_patch_cachetlbops - nop - - ba,pt %xcc, tlb_fixup_done - nop - -spitfire_tlb_fixup: - /* Set TLB type to spitfire. */ - mov 0, %g2 - sethi %hi(tlb_type), %g1 - stw %g2, [%g1 + %lo(tlb_type)] - -tlb_fixup_done: - sethi %hi(init_thread_union), %g6 - or %g6, %lo(init_thread_union), %g6 - ldx [%g6 + TI_TASK], %g4 - mov %sp, %l6 - - wr %g0, ASI_P, %asi - mov 1, %g1 - sllx %g1, THREAD_SHIFT, %g1 - sub %g1, (STACKFRAME_SZ + STACK_BIAS), %g1 - add %g6, %g1, %sp - mov 0, %fp - - /* Set per-cpu pointer initially to zero, this makes - * the boot-cpu use the in-kernel-image per-cpu areas - * before setup_per_cpu_area() is invoked. - */ - clr %g5 - - wrpr %g0, 0, %wstate - wrpr %g0, 0x0, %tl - - /* Clear the bss */ - sethi %hi(__bss_start), %o0 - or %o0, %lo(__bss_start), %o0 - sethi %hi(_end), %o1 - or %o1, %lo(_end), %o1 - call __bzero - sub %o1, %o0, %o1 - -#ifdef CONFIG_LOCKDEP - /* We have this call this super early, as even prom_init can grab - * spinlocks and thus call into the lockdep code. - */ - call lockdep_init - nop -#endif - - mov %l6, %o1 ! OpenPROM stack - call prom_init - mov %l7, %o0 ! OpenPROM cif handler - - /* Initialize current_thread_info()->cpu as early as possible. - * In order to do that accurately we have to patch up the get_cpuid() - * assembler sequences. And that, in turn, requires that we know - * if we are on a Starfire box or not. While we're here, patch up - * the sun4v sequences as well. - */ - call check_if_starfire - nop - call per_cpu_patch - nop - call sun4v_patch - nop - -#ifdef CONFIG_SMP - call hard_smp_processor_id - nop - cmp %o0, NR_CPUS - blu,pt %xcc, 1f - nop - call boot_cpu_id_too_large - nop - /* Not reached... */ - -1: - /* If we boot on a non-zero cpu, all of the per-cpu - * variable references we make before setting up the - * per-cpu areas will use a bogus offset. Put a - * compensating factor into __per_cpu_base to handle - * this cleanly. - * - * What the per-cpu code calculates is: - * - * __per_cpu_base + (cpu << __per_cpu_shift) - * - * These two variables are zero initially, so to - * make it all cancel out to zero we need to put - * "0 - (cpu << 0)" into __per_cpu_base so that the - * above formula evaluates to zero. - * - * We cannot even perform a printk() until this stuff - * is setup as that calls cpu_clock() which uses - * per-cpu variables. - */ - sub %g0, %o0, %o1 - sethi %hi(__per_cpu_base), %o2 - stx %o1, [%o2 + %lo(__per_cpu_base)] -#else - mov 0, %o0 -#endif - sth %o0, [%g6 + TI_CPU] - - call prom_init_report - nop - - /* Off we go.... */ - call start_kernel - nop - /* Not reached... */ - - .previous - - /* This is meant to allow the sharing of this code between - * boot processor invocation (via setup_tba() below) and - * secondary processor startup (via trampoline.S). The - * former does use this code, the latter does not yet due - * to some complexities. That should be fixed up at some - * point. - * - * There used to be enormous complexity wrt. transferring - * over from the firwmare's trap table to the Linux kernel's. - * For example, there was a chicken & egg problem wrt. building - * the OBP page tables, yet needing to be on the Linux kernel - * trap table (to translate PAGE_OFFSET addresses) in order to - * do that. - * - * We now handle OBP tlb misses differently, via linear lookups - * into the prom_trans[] array. So that specific problem no - * longer exists. Yet, unfortunately there are still some issues - * preventing trampoline.S from using this code... ho hum. - */ - .globl setup_trap_table -setup_trap_table: - save %sp, -192, %sp - - /* Force interrupts to be disabled. */ - rdpr %pstate, %l0 - andn %l0, PSTATE_IE, %o1 - wrpr %o1, 0x0, %pstate - rdpr %pil, %l1 - wrpr %g0, 15, %pil - - /* Make the firmware call to jump over to the Linux trap table. */ - sethi %hi(is_sun4v), %o0 - lduw [%o0 + %lo(is_sun4v)], %o0 - brz,pt %o0, 1f - nop - - TRAP_LOAD_TRAP_BLOCK(%g2, %g3) - add %g2, TRAP_PER_CPU_FAULT_INFO, %g2 - stxa %g2, [%g0] ASI_SCRATCHPAD - - /* Compute physical address: - * - * paddr = kern_base + (mmfsa_vaddr - KERNBASE) - */ - sethi %hi(KERNBASE), %g3 - sub %g2, %g3, %g2 - sethi %hi(kern_base), %g3 - ldx [%g3 + %lo(kern_base)], %g3 - add %g2, %g3, %o1 - sethi %hi(sparc64_ttable_tl0), %o0 - - set prom_set_trap_table_name, %g2 - stx %g2, [%sp + 2047 + 128 + 0x00] - mov 2, %g2 - stx %g2, [%sp + 2047 + 128 + 0x08] - mov 0, %g2 - stx %g2, [%sp + 2047 + 128 + 0x10] - stx %o0, [%sp + 2047 + 128 + 0x18] - stx %o1, [%sp + 2047 + 128 + 0x20] - sethi %hi(p1275buf), %g2 - or %g2, %lo(p1275buf), %g2 - ldx [%g2 + 0x08], %o1 - call %o1 - add %sp, (2047 + 128), %o0 - - ba,pt %xcc, 2f - nop - -1: sethi %hi(sparc64_ttable_tl0), %o0 - set prom_set_trap_table_name, %g2 - stx %g2, [%sp + 2047 + 128 + 0x00] - mov 1, %g2 - stx %g2, [%sp + 2047 + 128 + 0x08] - mov 0, %g2 - stx %g2, [%sp + 2047 + 128 + 0x10] - stx %o0, [%sp + 2047 + 128 + 0x18] - sethi %hi(p1275buf), %g2 - or %g2, %lo(p1275buf), %g2 - ldx [%g2 + 0x08], %o1 - call %o1 - add %sp, (2047 + 128), %o0 - - /* Start using proper page size encodings in ctx register. */ -2: sethi %hi(sparc64_kern_pri_context), %g3 - ldx [%g3 + %lo(sparc64_kern_pri_context)], %g2 - - mov PRIMARY_CONTEXT, %g1 - -661: stxa %g2, [%g1] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %g2, [%g1] ASI_MMU - .previous - - membar #Sync - - BRANCH_IF_SUN4V(o2, 1f) - - /* Kill PROM timer */ - sethi %hi(0x80000000), %o2 - sllx %o2, 32, %o2 - wr %o2, 0, %tick_cmpr - - BRANCH_IF_ANY_CHEETAH(o2, o3, 1f) - - ba,pt %xcc, 2f - nop - - /* Disable STICK_INT interrupts. */ -1: - sethi %hi(0x80000000), %o2 - sllx %o2, 32, %o2 - wr %o2, %asr25 - -2: - wrpr %g0, %g0, %wstate - - call init_irqwork_curcpu - nop - - /* Now we can restore interrupt state. */ - wrpr %l0, 0, %pstate - wrpr %l1, 0x0, %pil - - ret - restore - - .globl setup_tba -setup_tba: - save %sp, -192, %sp - - /* The boot processor is the only cpu which invokes this - * routine, the other cpus set things up via trampoline.S. - * So save the OBP trap table address here. - */ - rdpr %tba, %g7 - sethi %hi(prom_tba), %o1 - or %o1, %lo(prom_tba), %o1 - stx %g7, [%o1] - - call setup_trap_table - nop - - ret - restore -sparc64_boot_end: - -#include "etrap.S" -#include "rtrap.S" -#include "winfixup.S" -#include "fpu_traps.S" -#include "ivec.S" -#include "getsetcc.S" -#include "utrap.S" -#include "spiterrs.S" -#include "cherrs.S" -#include "misctrap.S" -#include "syscalls.S" -#include "helpers.S" -#include "hvcalls.S" -#include "sun4v_tlb_miss.S" -#include "sun4v_ivec.S" -#include "ktlb.S" -#include "tsb.S" - -/* - * The following skip makes sure the trap table in ttable.S is aligned - * on a 32K boundary as required by the v9 specs for TBA register. - * - * We align to a 32K boundary, then we have the 32K kernel TSB, - * the 64K kernel 4MB TSB, and then the 32K aligned trap table. - */ -1: - .skip 0x4000 + _start - 1b - -! 0x0000000000408000 - - .globl swapper_tsb -swapper_tsb: - .skip (32 * 1024) - - .globl swapper_4m_tsb -swapper_4m_tsb: - .skip (64 * 1024) - -! 0x0000000000420000 - - /* Some care needs to be exercised if you try to move the - * location of the trap table relative to other things. For - * one thing there are br* instructions in some of the - * trap table entires which branch back to code in ktlb.S - * Those instructions can only handle a signed 16-bit - * displacement. - * - * There is a binutils bug (bugzilla #4558) which causes - * the relocation overflow checks for such instructions to - * not be done correctly. So bintuils will not notice the - * error and will instead write junk into the relocation and - * you'll have an unbootable kernel. - */ -#include "ttable.S" - -! 0x0000000000428000 - -#include "systbls.S" - - .data - .align 8 - .globl prom_tba, tlb_type -prom_tba: .xword 0 -tlb_type: .word 0 /* Must NOT end up in BSS */ - .section ".fixup",#alloc,#execinstr - - .globl __ret_efault, __retl_efault -__ret_efault: - ret - restore %g0, -EFAULT, %o0 -__retl_efault: - retl - mov -EFAULT, %o0 diff --git a/arch/sparc64/kernel/helpers.S b/arch/sparc64/kernel/helpers.S deleted file mode 100644 index 314dd0c9fc5b..000000000000 --- a/arch/sparc64/kernel/helpers.S +++ /dev/null @@ -1,63 +0,0 @@ - .align 32 - .globl __flushw_user - .type __flushw_user,#function -__flushw_user: - rdpr %otherwin, %g1 - brz,pn %g1, 2f - clr %g2 -1: save %sp, -128, %sp - rdpr %otherwin, %g1 - brnz,pt %g1, 1b - add %g2, 1, %g2 -1: sub %g2, 1, %g2 - brnz,pt %g2, 1b - restore %g0, %g0, %g0 -2: retl - nop - .size __flushw_user,.-__flushw_user - - /* Flush %fp and %i7 to the stack for all register - * windows active inside of the cpu. This allows - * show_stack_trace() to avoid using an expensive - * 'flushw'. - */ - .globl stack_trace_flush - .type stack_trace_flush,#function -stack_trace_flush: - rdpr %pstate, %o0 - wrpr %o0, PSTATE_IE, %pstate - - rdpr %cwp, %g1 - rdpr %canrestore, %g2 - sub %g1, 1, %g3 - -1: brz,pn %g2, 2f - sub %g2, 1, %g2 - wrpr %g3, %cwp - stx %fp, [%sp + STACK_BIAS + RW_V9_I6] - stx %i7, [%sp + STACK_BIAS + RW_V9_I7] - ba,pt %xcc, 1b - sub %g3, 1, %g3 - -2: wrpr %g1, %cwp - wrpr %o0, %pstate - - retl - nop - .size stack_trace_flush,.-stack_trace_flush - -#ifdef CONFIG_SMP - .globl hard_smp_processor_id - .type hard_smp_processor_id,#function -hard_smp_processor_id: -#endif - .globl real_hard_smp_processor_id - .type real_hard_smp_processor_id,#function -real_hard_smp_processor_id: - __GET_CPUID(%o0) - retl - nop -#ifdef CONFIG_SMP - .size hard_smp_processor_id,.-hard_smp_processor_id -#endif - .size real_hard_smp_processor_id,.-real_hard_smp_processor_id diff --git a/arch/sparc64/kernel/hvapi.c b/arch/sparc64/kernel/hvapi.c deleted file mode 100644 index 1d272c3b5740..000000000000 --- a/arch/sparc64/kernel/hvapi.c +++ /dev/null @@ -1,193 +0,0 @@ -/* hvapi.c: Hypervisor API management. - * - * Copyright (C) 2007 David S. Miller <davem@davemloft.net> - */ -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/slab.h> - -#include <asm/hypervisor.h> -#include <asm/oplib.h> - -/* If the hypervisor indicates that the API setting - * calls are unsupported, by returning HV_EBADTRAP or - * HV_ENOTSUPPORTED, we assume that API groups with the - * PRE_API flag set are major 1 minor 0. - */ -struct api_info { - unsigned long group; - unsigned long major; - unsigned long minor; - unsigned int refcnt; - unsigned int flags; -#define FLAG_PRE_API 0x00000001 -}; - -static struct api_info api_table[] = { - { .group = HV_GRP_SUN4V, .flags = FLAG_PRE_API }, - { .group = HV_GRP_CORE, .flags = FLAG_PRE_API }, - { .group = HV_GRP_INTR, }, - { .group = HV_GRP_SOFT_STATE, }, - { .group = HV_GRP_PCI, .flags = FLAG_PRE_API }, - { .group = HV_GRP_LDOM, }, - { .group = HV_GRP_SVC_CHAN, .flags = FLAG_PRE_API }, - { .group = HV_GRP_NCS, .flags = FLAG_PRE_API }, - { .group = HV_GRP_RNG, }, - { .group = HV_GRP_NIAG_PERF, .flags = FLAG_PRE_API }, - { .group = HV_GRP_FIRE_PERF, }, - { .group = HV_GRP_N2_CPU, }, - { .group = HV_GRP_NIU, }, - { .group = HV_GRP_VF_CPU, }, - { .group = HV_GRP_DIAG, .flags = FLAG_PRE_API }, -}; - -static DEFINE_SPINLOCK(hvapi_lock); - -static struct api_info *__get_info(unsigned long group) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(api_table); i++) { - if (api_table[i].group == group) - return &api_table[i]; - } - return NULL; -} - -static void __get_ref(struct api_info *p) -{ - p->refcnt++; -} - -static void __put_ref(struct api_info *p) -{ - if (--p->refcnt == 0) { - unsigned long ignore; - - sun4v_set_version(p->group, 0, 0, &ignore); - p->major = p->minor = 0; - } -} - -/* Register a hypervisor API specification. It indicates the - * API group and desired major+minor. - * - * If an existing API registration exists '0' (success) will - * be returned if it is compatible with the one being registered. - * Otherwise a negative error code will be returned. - * - * Otherwise an attempt will be made to negotiate the requested - * API group/major/minor with the hypervisor, and errors returned - * if that does not succeed. - */ -int sun4v_hvapi_register(unsigned long group, unsigned long major, - unsigned long *minor) -{ - struct api_info *p; - unsigned long flags; - int ret; - - spin_lock_irqsave(&hvapi_lock, flags); - p = __get_info(group); - ret = -EINVAL; - if (p) { - if (p->refcnt) { - ret = -EINVAL; - if (p->major == major) { - *minor = p->minor; - ret = 0; - } - } else { - unsigned long actual_minor; - unsigned long hv_ret; - - hv_ret = sun4v_set_version(group, major, *minor, - &actual_minor); - ret = -EINVAL; - if (hv_ret == HV_EOK) { - *minor = actual_minor; - p->major = major; - p->minor = actual_minor; - ret = 0; - } else if (hv_ret == HV_EBADTRAP || - hv_ret == HV_ENOTSUPPORTED) { - if (p->flags & FLAG_PRE_API) { - if (major == 1) { - p->major = 1; - p->minor = 0; - *minor = 0; - ret = 0; - } - } - } - } - - if (ret == 0) - __get_ref(p); - } - spin_unlock_irqrestore(&hvapi_lock, flags); - - return ret; -} -EXPORT_SYMBOL(sun4v_hvapi_register); - -void sun4v_hvapi_unregister(unsigned long group) -{ - struct api_info *p; - unsigned long flags; - - spin_lock_irqsave(&hvapi_lock, flags); - p = __get_info(group); - if (p) - __put_ref(p); - spin_unlock_irqrestore(&hvapi_lock, flags); -} -EXPORT_SYMBOL(sun4v_hvapi_unregister); - -int sun4v_hvapi_get(unsigned long group, - unsigned long *major, - unsigned long *minor) -{ - struct api_info *p; - unsigned long flags; - int ret; - - spin_lock_irqsave(&hvapi_lock, flags); - ret = -EINVAL; - p = __get_info(group); - if (p && p->refcnt) { - *major = p->major; - *minor = p->minor; - ret = 0; - } - spin_unlock_irqrestore(&hvapi_lock, flags); - - return ret; -} -EXPORT_SYMBOL(sun4v_hvapi_get); - -void __init sun4v_hvapi_init(void) -{ - unsigned long group, major, minor; - - group = HV_GRP_SUN4V; - major = 1; - minor = 0; - if (sun4v_hvapi_register(group, major, &minor)) - goto bad; - - group = HV_GRP_CORE; - major = 1; - minor = 1; - if (sun4v_hvapi_register(group, major, &minor)) - goto bad; - - return; - -bad: - prom_printf("HVAPI: Cannot register API group " - "%lx with major(%u) minor(%u)\n", - group, major, minor); - prom_halt(); -} diff --git a/arch/sparc64/kernel/hvcalls.S b/arch/sparc64/kernel/hvcalls.S deleted file mode 100644 index e066269d1594..000000000000 --- a/arch/sparc64/kernel/hvcalls.S +++ /dev/null @@ -1,768 +0,0 @@ - /* %o0: devhandle - * %o1: devino - * - * returns %o0: sysino - */ -ENTRY(sun4v_devino_to_sysino) - mov HV_FAST_INTR_DEVINO2SYSINO, %o5 - ta HV_FAST_TRAP - retl - mov %o1, %o0 -ENDPROC(sun4v_devino_to_sysino) - - /* %o0: sysino - * - * returns %o0: intr_enabled (HV_INTR_{DISABLED,ENABLED}) - */ -ENTRY(sun4v_intr_getenabled) - mov HV_FAST_INTR_GETENABLED, %o5 - ta HV_FAST_TRAP - retl - mov %o1, %o0 -ENDPROC(sun4v_intr_getenabled) - - /* %o0: sysino - * %o1: intr_enabled (HV_INTR_{DISABLED,ENABLED}) - */ -ENTRY(sun4v_intr_setenabled) - mov HV_FAST_INTR_SETENABLED, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_intr_setenabled) - - /* %o0: sysino - * - * returns %o0: intr_state (HV_INTR_STATE_*) - */ -ENTRY(sun4v_intr_getstate) - mov HV_FAST_INTR_GETSTATE, %o5 - ta HV_FAST_TRAP - retl - mov %o1, %o0 -ENDPROC(sun4v_intr_getstate) - - /* %o0: sysino - * %o1: intr_state (HV_INTR_STATE_*) - */ -ENTRY(sun4v_intr_setstate) - mov HV_FAST_INTR_SETSTATE, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_intr_setstate) - - /* %o0: sysino - * - * returns %o0: cpuid - */ -ENTRY(sun4v_intr_gettarget) - mov HV_FAST_INTR_GETTARGET, %o5 - ta HV_FAST_TRAP - retl - mov %o1, %o0 -ENDPROC(sun4v_intr_gettarget) - - /* %o0: sysino - * %o1: cpuid - */ -ENTRY(sun4v_intr_settarget) - mov HV_FAST_INTR_SETTARGET, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_intr_settarget) - - /* %o0: cpuid - * %o1: pc - * %o2: rtba - * %o3: arg0 - * - * returns %o0: status - */ -ENTRY(sun4v_cpu_start) - mov HV_FAST_CPU_START, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_cpu_start) - - /* %o0: cpuid - * - * returns %o0: status - */ -ENTRY(sun4v_cpu_stop) - mov HV_FAST_CPU_STOP, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_cpu_stop) - - /* returns %o0: status */ -ENTRY(sun4v_cpu_yield) - mov HV_FAST_CPU_YIELD, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_cpu_yield) - - /* %o0: type - * %o1: queue paddr - * %o2: num queue entries - * - * returns %o0: status - */ -ENTRY(sun4v_cpu_qconf) - mov HV_FAST_CPU_QCONF, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_cpu_qconf) - - /* %o0: num cpus in cpu list - * %o1: cpu list paddr - * %o2: mondo block paddr - * - * returns %o0: status - */ -ENTRY(sun4v_cpu_mondo_send) - mov HV_FAST_CPU_MONDO_SEND, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_cpu_mondo_send) - - /* %o0: CPU ID - * - * returns %o0: -status if status non-zero, else - * %o0: cpu state as HV_CPU_STATE_* - */ -ENTRY(sun4v_cpu_state) - mov HV_FAST_CPU_STATE, %o5 - ta HV_FAST_TRAP - brnz,pn %o0, 1f - sub %g0, %o0, %o0 - mov %o1, %o0 -1: retl - nop -ENDPROC(sun4v_cpu_state) - - /* %o0: virtual address - * %o1: must be zero - * %o2: TTE - * %o3: HV_MMU_* flags - * - * returns %o0: status - */ -ENTRY(sun4v_mmu_map_perm_addr) - mov HV_FAST_MMU_MAP_PERM_ADDR, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_mmu_map_perm_addr) - - /* %o0: number of TSB descriptions - * %o1: TSB descriptions real address - * - * returns %o0: status - */ -ENTRY(sun4v_mmu_tsb_ctx0) - mov HV_FAST_MMU_TSB_CTX0, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_mmu_tsb_ctx0) - - /* %o0: API group number - * %o1: pointer to unsigned long major number storage - * %o2: pointer to unsigned long minor number storage - * - * returns %o0: status - */ -ENTRY(sun4v_get_version) - mov HV_CORE_GET_VER, %o5 - mov %o1, %o3 - mov %o2, %o4 - ta HV_CORE_TRAP - stx %o1, [%o3] - retl - stx %o2, [%o4] -ENDPROC(sun4v_get_version) - - /* %o0: API group number - * %o1: desired major number - * %o2: desired minor number - * %o3: pointer to unsigned long actual minor number storage - * - * returns %o0: status - */ -ENTRY(sun4v_set_version) - mov HV_CORE_SET_VER, %o5 - mov %o3, %o4 - ta HV_CORE_TRAP - retl - stx %o1, [%o4] -ENDPROC(sun4v_set_version) - - /* %o0: pointer to unsigned long time - * - * returns %o0: status - */ -ENTRY(sun4v_tod_get) - mov %o0, %o4 - mov HV_FAST_TOD_GET, %o5 - ta HV_FAST_TRAP - stx %o1, [%o4] - retl - nop -ENDPROC(sun4v_tod_get) - - /* %o0: time - * - * returns %o0: status - */ -ENTRY(sun4v_tod_set) - mov HV_FAST_TOD_SET, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_tod_set) - - /* %o0: pointer to unsigned long status - * - * returns %o0: signed character - */ -ENTRY(sun4v_con_getchar) - mov %o0, %o4 - mov HV_FAST_CONS_GETCHAR, %o5 - clr %o0 - clr %o1 - ta HV_FAST_TRAP - stx %o0, [%o4] - retl - sra %o1, 0, %o0 -ENDPROC(sun4v_con_getchar) - - /* %o0: signed long character - * - * returns %o0: status - */ -ENTRY(sun4v_con_putchar) - mov HV_FAST_CONS_PUTCHAR, %o5 - ta HV_FAST_TRAP - retl - sra %o0, 0, %o0 -ENDPROC(sun4v_con_putchar) - - /* %o0: buffer real address - * %o1: buffer size - * %o2: pointer to unsigned long bytes_read - * - * returns %o0: status - */ -ENTRY(sun4v_con_read) - mov %o2, %o4 - mov HV_FAST_CONS_READ, %o5 - ta HV_FAST_TRAP - brnz %o0, 1f - cmp %o1, -1 /* break */ - be,a,pn %icc, 1f - mov %o1, %o0 - cmp %o1, -2 /* hup */ - be,a,pn %icc, 1f - mov %o1, %o0 - stx %o1, [%o4] -1: retl - nop -ENDPROC(sun4v_con_read) - - /* %o0: buffer real address - * %o1: buffer size - * %o2: pointer to unsigned long bytes_written - * - * returns %o0: status - */ -ENTRY(sun4v_con_write) - mov %o2, %o4 - mov HV_FAST_CONS_WRITE, %o5 - ta HV_FAST_TRAP - stx %o1, [%o4] - retl - nop -ENDPROC(sun4v_con_write) - - /* %o0: soft state - * %o1: address of description string - * - * returns %o0: status - */ -ENTRY(sun4v_mach_set_soft_state) - mov HV_FAST_MACH_SET_SOFT_STATE, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_mach_set_soft_state) - - /* %o0: exit code - * - * Does not return. - */ -ENTRY(sun4v_mach_exit) - mov HV_FAST_MACH_EXIT, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_mach_exit) - - /* %o0: buffer real address - * %o1: buffer length - * %o2: pointer to unsigned long real_buf_len - * - * returns %o0: status - */ -ENTRY(sun4v_mach_desc) - mov %o2, %o4 - mov HV_FAST_MACH_DESC, %o5 - ta HV_FAST_TRAP - stx %o1, [%o4] - retl - nop -ENDPROC(sun4v_mach_desc) - - /* %o0: new timeout in milliseconds - * %o1: pointer to unsigned long orig_timeout - * - * returns %o0: status - */ -ENTRY(sun4v_mach_set_watchdog) - mov %o1, %o4 - mov HV_FAST_MACH_SET_WATCHDOG, %o5 - ta HV_FAST_TRAP - stx %o1, [%o4] - retl - nop -ENDPROC(sun4v_mach_set_watchdog) - - /* No inputs and does not return. */ -ENTRY(sun4v_mach_sir) - mov %o1, %o4 - mov HV_FAST_MACH_SIR, %o5 - ta HV_FAST_TRAP - stx %o1, [%o4] - retl - nop -ENDPROC(sun4v_mach_sir) - - /* %o0: channel - * %o1: ra - * %o2: num_entries - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_tx_qconf) - mov HV_FAST_LDC_TX_QCONF, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_ldc_tx_qconf) - - /* %o0: channel - * %o1: pointer to unsigned long ra - * %o2: pointer to unsigned long num_entries - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_tx_qinfo) - mov %o1, %g1 - mov %o2, %g2 - mov HV_FAST_LDC_TX_QINFO, %o5 - ta HV_FAST_TRAP - stx %o1, [%g1] - stx %o2, [%g2] - retl - nop -ENDPROC(sun4v_ldc_tx_qinfo) - - /* %o0: channel - * %o1: pointer to unsigned long head_off - * %o2: pointer to unsigned long tail_off - * %o2: pointer to unsigned long chan_state - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_tx_get_state) - mov %o1, %g1 - mov %o2, %g2 - mov %o3, %g3 - mov HV_FAST_LDC_TX_GET_STATE, %o5 - ta HV_FAST_TRAP - stx %o1, [%g1] - stx %o2, [%g2] - stx %o3, [%g3] - retl - nop -ENDPROC(sun4v_ldc_tx_get_state) - - /* %o0: channel - * %o1: tail_off - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_tx_set_qtail) - mov HV_FAST_LDC_TX_SET_QTAIL, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_ldc_tx_set_qtail) - - /* %o0: channel - * %o1: ra - * %o2: num_entries - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_rx_qconf) - mov HV_FAST_LDC_RX_QCONF, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_ldc_rx_qconf) - - /* %o0: channel - * %o1: pointer to unsigned long ra - * %o2: pointer to unsigned long num_entries - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_rx_qinfo) - mov %o1, %g1 - mov %o2, %g2 - mov HV_FAST_LDC_RX_QINFO, %o5 - ta HV_FAST_TRAP - stx %o1, [%g1] - stx %o2, [%g2] - retl - nop -ENDPROC(sun4v_ldc_rx_qinfo) - - /* %o0: channel - * %o1: pointer to unsigned long head_off - * %o2: pointer to unsigned long tail_off - * %o2: pointer to unsigned long chan_state - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_rx_get_state) - mov %o1, %g1 - mov %o2, %g2 - mov %o3, %g3 - mov HV_FAST_LDC_RX_GET_STATE, %o5 - ta HV_FAST_TRAP - stx %o1, [%g1] - stx %o2, [%g2] - stx %o3, [%g3] - retl - nop -ENDPROC(sun4v_ldc_rx_get_state) - - /* %o0: channel - * %o1: head_off - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_rx_set_qhead) - mov HV_FAST_LDC_RX_SET_QHEAD, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_ldc_rx_set_qhead) - - /* %o0: channel - * %o1: ra - * %o2: num_entries - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_set_map_table) - mov HV_FAST_LDC_SET_MAP_TABLE, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_ldc_set_map_table) - - /* %o0: channel - * %o1: pointer to unsigned long ra - * %o2: pointer to unsigned long num_entries - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_get_map_table) - mov %o1, %g1 - mov %o2, %g2 - mov HV_FAST_LDC_GET_MAP_TABLE, %o5 - ta HV_FAST_TRAP - stx %o1, [%g1] - stx %o2, [%g2] - retl - nop -ENDPROC(sun4v_ldc_get_map_table) - - /* %o0: channel - * %o1: dir_code - * %o2: tgt_raddr - * %o3: lcl_raddr - * %o4: len - * %o5: pointer to unsigned long actual_len - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_copy) - mov %o5, %g1 - mov HV_FAST_LDC_COPY, %o5 - ta HV_FAST_TRAP - stx %o1, [%g1] - retl - nop -ENDPROC(sun4v_ldc_copy) - - /* %o0: channel - * %o1: cookie - * %o2: pointer to unsigned long ra - * %o3: pointer to unsigned long perm - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_mapin) - mov %o2, %g1 - mov %o3, %g2 - mov HV_FAST_LDC_MAPIN, %o5 - ta HV_FAST_TRAP - stx %o1, [%g1] - stx %o2, [%g2] - retl - nop -ENDPROC(sun4v_ldc_mapin) - - /* %o0: ra - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_unmap) - mov HV_FAST_LDC_UNMAP, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_ldc_unmap) - - /* %o0: channel - * %o1: cookie - * %o2: mte_cookie - * - * returns %o0: status - */ -ENTRY(sun4v_ldc_revoke) - mov HV_FAST_LDC_REVOKE, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_ldc_revoke) - - /* %o0: device handle - * %o1: device INO - * %o2: pointer to unsigned long cookie - * - * returns %o0: status - */ -ENTRY(sun4v_vintr_get_cookie) - mov %o2, %g1 - mov HV_FAST_VINTR_GET_COOKIE, %o5 - ta HV_FAST_TRAP - stx %o1, [%g1] - retl - nop -ENDPROC(sun4v_vintr_get_cookie) - - /* %o0: device handle - * %o1: device INO - * %o2: cookie - * - * returns %o0: status - */ -ENTRY(sun4v_vintr_set_cookie) - mov HV_FAST_VINTR_SET_COOKIE, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_vintr_set_cookie) - - /* %o0: device handle - * %o1: device INO - * %o2: pointer to unsigned long valid_state - * - * returns %o0: status - */ -ENTRY(sun4v_vintr_get_valid) - mov %o2, %g1 - mov HV_FAST_VINTR_GET_VALID, %o5 - ta HV_FAST_TRAP - stx %o1, [%g1] - retl - nop -ENDPROC(sun4v_vintr_get_valid) - - /* %o0: device handle - * %o1: device INO - * %o2: valid_state - * - * returns %o0: status - */ -ENTRY(sun4v_vintr_set_valid) - mov HV_FAST_VINTR_SET_VALID, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_vintr_set_valid) - - /* %o0: device handle - * %o1: device INO - * %o2: pointer to unsigned long state - * - * returns %o0: status - */ -ENTRY(sun4v_vintr_get_state) - mov %o2, %g1 - mov HV_FAST_VINTR_GET_STATE, %o5 - ta HV_FAST_TRAP - stx %o1, [%g1] - retl - nop -ENDPROC(sun4v_vintr_get_state) - - /* %o0: device handle - * %o1: device INO - * %o2: state - * - * returns %o0: status - */ -ENTRY(sun4v_vintr_set_state) - mov HV_FAST_VINTR_SET_STATE, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_vintr_set_state) - - /* %o0: device handle - * %o1: device INO - * %o2: pointer to unsigned long cpuid - * - * returns %o0: status - */ -ENTRY(sun4v_vintr_get_target) - mov %o2, %g1 - mov HV_FAST_VINTR_GET_TARGET, %o5 - ta HV_FAST_TRAP - stx %o1, [%g1] - retl - nop -ENDPROC(sun4v_vintr_get_target) - - /* %o0: device handle - * %o1: device INO - * %o2: cpuid - * - * returns %o0: status - */ -ENTRY(sun4v_vintr_set_target) - mov HV_FAST_VINTR_SET_TARGET, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_vintr_set_target) - - /* %o0: NCS sub-function - * %o1: sub-function arg real-address - * %o2: sub-function arg size - * - * returns %o0: status - */ -ENTRY(sun4v_ncs_request) - mov HV_FAST_NCS_REQUEST, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_ncs_request) - -ENTRY(sun4v_svc_send) - save %sp, -192, %sp - mov %i0, %o0 - mov %i1, %o1 - mov %i2, %o2 - mov HV_FAST_SVC_SEND, %o5 - ta HV_FAST_TRAP - stx %o1, [%i3] - ret - restore -ENDPROC(sun4v_svc_send) - -ENTRY(sun4v_svc_recv) - save %sp, -192, %sp - mov %i0, %o0 - mov %i1, %o1 - mov %i2, %o2 - mov HV_FAST_SVC_RECV, %o5 - ta HV_FAST_TRAP - stx %o1, [%i3] - ret - restore -ENDPROC(sun4v_svc_recv) - -ENTRY(sun4v_svc_getstatus) - mov HV_FAST_SVC_GETSTATUS, %o5 - mov %o1, %o4 - ta HV_FAST_TRAP - stx %o1, [%o4] - retl - nop -ENDPROC(sun4v_svc_getstatus) - -ENTRY(sun4v_svc_setstatus) - mov HV_FAST_SVC_SETSTATUS, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_svc_setstatus) - -ENTRY(sun4v_svc_clrstatus) - mov HV_FAST_SVC_CLRSTATUS, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_svc_clrstatus) - -ENTRY(sun4v_mmustat_conf) - mov %o1, %o4 - mov HV_FAST_MMUSTAT_CONF, %o5 - ta HV_FAST_TRAP - stx %o1, [%o4] - retl - nop -ENDPROC(sun4v_mmustat_conf) - -ENTRY(sun4v_mmustat_info) - mov %o0, %o4 - mov HV_FAST_MMUSTAT_INFO, %o5 - ta HV_FAST_TRAP - stx %o1, [%o4] - retl - nop -ENDPROC(sun4v_mmustat_info) - -ENTRY(sun4v_mmu_demap_all) - clr %o0 - clr %o1 - mov HV_MMU_ALL, %o2 - mov HV_FAST_MMU_DEMAP_ALL, %o5 - ta HV_FAST_TRAP - retl - nop -ENDPROC(sun4v_mmu_demap_all) diff --git a/arch/sparc64/kernel/hvtramp.S b/arch/sparc64/kernel/hvtramp.S deleted file mode 100644 index 0236c43772fa..000000000000 --- a/arch/sparc64/kernel/hvtramp.S +++ /dev/null @@ -1,139 +0,0 @@ -/* hvtramp.S: Hypervisor start-cpu trampoline code. - * - * Copyright (C) 2007 David S. Miller <davem@davemloft.net> - */ - -#include <linux/init.h> - -#include <asm/thread_info.h> -#include <asm/hypervisor.h> -#include <asm/scratchpad.h> -#include <asm/spitfire.h> -#include <asm/hvtramp.h> -#include <asm/pstate.h> -#include <asm/ptrace.h> -#include <asm/head.h> -#include <asm/asi.h> - - __CPUINIT - .align 8 - .globl hv_cpu_startup, hv_cpu_startup_end - - /* This code executes directly out of the hypervisor - * with physical addressing (va==pa). %o0 contains - * our client argument which for Linux points to - * a descriptor data structure which defines the - * MMU entries we need to load up. - * - * After we set things up we enable the MMU and call - * into the kernel. - * - * First setup basic privileged cpu state. - */ -hv_cpu_startup: - SET_GL(0) - wrpr %g0, 15, %pil - wrpr %g0, 0, %canrestore - wrpr %g0, 0, %otherwin - wrpr %g0, 6, %cansave - wrpr %g0, 6, %cleanwin - wrpr %g0, 0, %cwp - wrpr %g0, 0, %wstate - wrpr %g0, 0, %tl - - sethi %hi(sparc64_ttable_tl0), %g1 - wrpr %g1, %tba - - mov %o0, %l0 - - lduw [%l0 + HVTRAMP_DESCR_CPU], %g1 - mov SCRATCHPAD_CPUID, %g2 - stxa %g1, [%g2] ASI_SCRATCHPAD - - ldx [%l0 + HVTRAMP_DESCR_FAULT_INFO_VA], %g2 - stxa %g2, [%g0] ASI_SCRATCHPAD - - mov 0, %l1 - lduw [%l0 + HVTRAMP_DESCR_NUM_MAPPINGS], %l2 - add %l0, HVTRAMP_DESCR_MAPS, %l3 - -1: ldx [%l3 + HVTRAMP_MAPPING_VADDR], %o0 - clr %o1 - ldx [%l3 + HVTRAMP_MAPPING_TTE], %o2 - mov HV_MMU_IMMU | HV_MMU_DMMU, %o3 - mov HV_FAST_MMU_MAP_PERM_ADDR, %o5 - ta HV_FAST_TRAP - - brnz,pn %o0, 80f - nop - - add %l1, 1, %l1 - cmp %l1, %l2 - blt,a,pt %xcc, 1b - add %l3, HVTRAMP_MAPPING_SIZE, %l3 - - ldx [%l0 + HVTRAMP_DESCR_FAULT_INFO_PA], %o0 - mov HV_FAST_MMU_FAULT_AREA_CONF, %o5 - ta HV_FAST_TRAP - - brnz,pn %o0, 80f - nop - - wrpr %g0, (PSTATE_PRIV | PSTATE_PEF), %pstate - - ldx [%l0 + HVTRAMP_DESCR_THREAD_REG], %l6 - - mov 1, %o0 - set 1f, %o1 - mov HV_FAST_MMU_ENABLE, %o5 - ta HV_FAST_TRAP - - ba,pt %xcc, 80f - nop - -1: - wr %g0, 0, %fprs - wr %g0, ASI_P, %asi - - mov PRIMARY_CONTEXT, %g7 - stxa %g0, [%g7] ASI_MMU - membar #Sync - - mov SECONDARY_CONTEXT, %g7 - stxa %g0, [%g7] ASI_MMU - membar #Sync - - mov %l6, %g6 - ldx [%g6 + TI_TASK], %g4 - - mov 1, %g5 - sllx %g5, THREAD_SHIFT, %g5 - sub %g5, (STACKFRAME_SZ + STACK_BIAS), %g5 - add %g6, %g5, %sp - mov 0, %fp - - call init_irqwork_curcpu - nop - call hard_smp_processor_id - nop - - call sun4v_register_mondo_queues - nop - - call init_cur_cpu_trap - mov %g6, %o0 - - wrpr %g0, (PSTATE_PRIV | PSTATE_PEF | PSTATE_IE), %pstate - - call smp_callin - nop - call cpu_idle - mov 0, %o0 - call cpu_panic - nop - -80: ba,pt %xcc, 80b - nop - - .align 8 -hv_cpu_startup_end: diff --git a/arch/sparc64/kernel/idprom.c b/arch/sparc64/kernel/idprom.c deleted file mode 100644 index a62ff83337cd..000000000000 --- a/arch/sparc64/kernel/idprom.c +++ /dev/null @@ -1,46 +0,0 @@ -/* - * idprom.c: Routines to load the idprom into kernel addresses and - * interpret the data contained within. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/init.h> - -#include <asm/oplib.h> -#include <asm/idprom.h> - -struct idprom *idprom; -static struct idprom idprom_buffer; - -/* Calculate the IDPROM checksum (xor of the data bytes). */ -static unsigned char __init calc_idprom_cksum(struct idprom *idprom) -{ - unsigned char cksum, i, *ptr = (unsigned char *)idprom; - - for (i = cksum = 0; i <= 0x0E; i++) - cksum ^= *ptr++; - - return cksum; -} - -/* Create a local IDPROM copy and verify integrity. */ -void __init idprom_init(void) -{ - prom_get_idprom((char *) &idprom_buffer, sizeof(idprom_buffer)); - - idprom = &idprom_buffer; - - if (idprom->id_format != 0x01) { - prom_printf("IDPROM: Warning, unknown format type!\n"); - } - - if (idprom->id_cksum != calc_idprom_cksum(idprom)) { - prom_printf("IDPROM: Warning, checksum failure (nvram=%x, calc=%x)!\n", - idprom->id_cksum, calc_idprom_cksum(idprom)); - } - - printk("Ethernet address: %pM\n", idprom->id_ethaddr); -} diff --git a/arch/sparc64/kernel/init_task.c b/arch/sparc64/kernel/init_task.c deleted file mode 100644 index d2b312381c19..000000000000 --- a/arch/sparc64/kernel/init_task.c +++ /dev/null @@ -1,35 +0,0 @@ -#include <linux/mm.h> -#include <linux/fs.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/init_task.h> -#include <linux/mqueue.h> - -#include <asm/pgtable.h> -#include <asm/uaccess.h> -#include <asm/processor.h> - -static struct fs_struct init_fs = INIT_FS; -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -struct mm_struct init_mm = INIT_MM(init_mm); - -EXPORT_SYMBOL(init_mm); - -/* .text section in head.S is aligned at 2 page boundary and this gets linked - * right after that so that the init_thread_union is aligned properly as well. - * We really don't need this special alignment like the Intel does, but - * I do it anyways for completeness. - */ -__asm__ (".text"); -union thread_union init_thread_union = { INIT_THREAD_INFO(init_task) }; - -/* - * Initial task structure. - * - * All other task structs will be allocated on slabs in fork.c - */ -EXPORT_SYMBOL(init_task); - -__asm__(".data"); -struct task_struct init_task = INIT_TASK(init_task); diff --git a/arch/sparc64/kernel/iommu.c b/arch/sparc64/kernel/iommu.c deleted file mode 100644 index 1cc1995531e2..000000000000 --- a/arch/sparc64/kernel/iommu.c +++ /dev/null @@ -1,866 +0,0 @@ -/* iommu.c: Generic sparc64 IOMMU support. - * - * Copyright (C) 1999, 2007, 2008 David S. Miller (davem@davemloft.net) - * Copyright (C) 1999, 2000 Jakub Jelinek (jakub@redhat.com) - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/device.h> -#include <linux/dma-mapping.h> -#include <linux/errno.h> -#include <linux/iommu-helper.h> - -#ifdef CONFIG_PCI -#include <linux/pci.h> -#endif - -#include <asm/iommu.h> - -#include "iommu_common.h" - -#define STC_CTXMATCH_ADDR(STC, CTX) \ - ((STC)->strbuf_ctxmatch_base + ((CTX) << 3)) -#define STC_FLUSHFLAG_INIT(STC) \ - (*((STC)->strbuf_flushflag) = 0UL) -#define STC_FLUSHFLAG_SET(STC) \ - (*((STC)->strbuf_flushflag) != 0UL) - -#define iommu_read(__reg) \ -({ u64 __ret; \ - __asm__ __volatile__("ldxa [%1] %2, %0" \ - : "=r" (__ret) \ - : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \ - : "memory"); \ - __ret; \ -}) -#define iommu_write(__reg, __val) \ - __asm__ __volatile__("stxa %0, [%1] %2" \ - : /* no outputs */ \ - : "r" (__val), "r" (__reg), \ - "i" (ASI_PHYS_BYPASS_EC_E)) - -/* Must be invoked under the IOMMU lock. */ -static void iommu_flushall(struct iommu *iommu) -{ - if (iommu->iommu_flushinv) { - iommu_write(iommu->iommu_flushinv, ~(u64)0); - } else { - unsigned long tag; - int entry; - - tag = iommu->iommu_tags; - for (entry = 0; entry < 16; entry++) { - iommu_write(tag, 0); - tag += 8; - } - - /* Ensure completion of previous PIO writes. */ - (void) iommu_read(iommu->write_complete_reg); - } -} - -#define IOPTE_CONSISTENT(CTX) \ - (IOPTE_VALID | IOPTE_CACHE | \ - (((CTX) << 47) & IOPTE_CONTEXT)) - -#define IOPTE_STREAMING(CTX) \ - (IOPTE_CONSISTENT(CTX) | IOPTE_STBUF) - -/* Existing mappings are never marked invalid, instead they - * are pointed to a dummy page. - */ -#define IOPTE_IS_DUMMY(iommu, iopte) \ - ((iopte_val(*iopte) & IOPTE_PAGE) == (iommu)->dummy_page_pa) - -static inline void iopte_make_dummy(struct iommu *iommu, iopte_t *iopte) -{ - unsigned long val = iopte_val(*iopte); - - val &= ~IOPTE_PAGE; - val |= iommu->dummy_page_pa; - - iopte_val(*iopte) = val; -} - -/* Based almost entirely upon the ppc64 iommu allocator. If you use the 'handle' - * facility it must all be done in one pass while under the iommu lock. - * - * On sun4u platforms, we only flush the IOMMU once every time we've passed - * over the entire page table doing allocations. Therefore we only ever advance - * the hint and cannot backtrack it. - */ -unsigned long iommu_range_alloc(struct device *dev, - struct iommu *iommu, - unsigned long npages, - unsigned long *handle) -{ - unsigned long n, end, start, limit, boundary_size; - struct iommu_arena *arena = &iommu->arena; - int pass = 0; - - /* This allocator was derived from x86_64's bit string search */ - - /* Sanity check */ - if (unlikely(npages == 0)) { - if (printk_ratelimit()) - WARN_ON(1); - return DMA_ERROR_CODE; - } - - if (handle && *handle) - start = *handle; - else - start = arena->hint; - - limit = arena->limit; - - /* The case below can happen if we have a small segment appended - * to a large, or when the previous alloc was at the very end of - * the available space. If so, go back to the beginning and flush. - */ - if (start >= limit) { - start = 0; - if (iommu->flush_all) - iommu->flush_all(iommu); - } - - again: - - if (dev) - boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, - 1 << IO_PAGE_SHIFT); - else - boundary_size = ALIGN(1UL << 32, 1 << IO_PAGE_SHIFT); - - n = iommu_area_alloc(arena->map, limit, start, npages, - iommu->page_table_map_base >> IO_PAGE_SHIFT, - boundary_size >> IO_PAGE_SHIFT, 0); - if (n == -1) { - if (likely(pass < 1)) { - /* First failure, rescan from the beginning. */ - start = 0; - if (iommu->flush_all) - iommu->flush_all(iommu); - pass++; - goto again; - } else { - /* Second failure, give up */ - return DMA_ERROR_CODE; - } - } - - end = n + npages; - - arena->hint = end; - - /* Update handle for SG allocations */ - if (handle) - *handle = end; - - return n; -} - -void iommu_range_free(struct iommu *iommu, dma_addr_t dma_addr, unsigned long npages) -{ - struct iommu_arena *arena = &iommu->arena; - unsigned long entry; - - entry = (dma_addr - iommu->page_table_map_base) >> IO_PAGE_SHIFT; - - iommu_area_free(arena->map, entry, npages); -} - -int iommu_table_init(struct iommu *iommu, int tsbsize, - u32 dma_offset, u32 dma_addr_mask, - int numa_node) -{ - unsigned long i, order, sz, num_tsb_entries; - struct page *page; - - num_tsb_entries = tsbsize / sizeof(iopte_t); - - /* Setup initial software IOMMU state. */ - spin_lock_init(&iommu->lock); - iommu->ctx_lowest_free = 1; - iommu->page_table_map_base = dma_offset; - iommu->dma_addr_mask = dma_addr_mask; - - /* Allocate and initialize the free area map. */ - sz = num_tsb_entries / 8; - sz = (sz + 7UL) & ~7UL; - iommu->arena.map = kmalloc_node(sz, GFP_KERNEL, numa_node); - if (!iommu->arena.map) { - printk(KERN_ERR "IOMMU: Error, kmalloc(arena.map) failed.\n"); - return -ENOMEM; - } - memset(iommu->arena.map, 0, sz); - iommu->arena.limit = num_tsb_entries; - - if (tlb_type != hypervisor) - iommu->flush_all = iommu_flushall; - - /* Allocate and initialize the dummy page which we - * set inactive IO PTEs to point to. - */ - page = alloc_pages_node(numa_node, GFP_KERNEL, 0); - if (!page) { - printk(KERN_ERR "IOMMU: Error, gfp(dummy_page) failed.\n"); - goto out_free_map; - } - iommu->dummy_page = (unsigned long) page_address(page); - memset((void *)iommu->dummy_page, 0, PAGE_SIZE); - iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page); - - /* Now allocate and setup the IOMMU page table itself. */ - order = get_order(tsbsize); - page = alloc_pages_node(numa_node, GFP_KERNEL, order); - if (!page) { - printk(KERN_ERR "IOMMU: Error, gfp(tsb) failed.\n"); - goto out_free_dummy_page; - } - iommu->page_table = (iopte_t *)page_address(page); - - for (i = 0; i < num_tsb_entries; i++) - iopte_make_dummy(iommu, &iommu->page_table[i]); - - return 0; - -out_free_dummy_page: - free_page(iommu->dummy_page); - iommu->dummy_page = 0UL; - -out_free_map: - kfree(iommu->arena.map); - iommu->arena.map = NULL; - - return -ENOMEM; -} - -static inline iopte_t *alloc_npages(struct device *dev, struct iommu *iommu, - unsigned long npages) -{ - unsigned long entry; - - entry = iommu_range_alloc(dev, iommu, npages, NULL); - if (unlikely(entry == DMA_ERROR_CODE)) - return NULL; - - return iommu->page_table + entry; -} - -static int iommu_alloc_ctx(struct iommu *iommu) -{ - int lowest = iommu->ctx_lowest_free; - int sz = IOMMU_NUM_CTXS - lowest; - int n = find_next_zero_bit(iommu->ctx_bitmap, sz, lowest); - - if (unlikely(n == sz)) { - n = find_next_zero_bit(iommu->ctx_bitmap, lowest, 1); - if (unlikely(n == lowest)) { - printk(KERN_WARNING "IOMMU: Ran out of contexts.\n"); - n = 0; - } - } - if (n) - __set_bit(n, iommu->ctx_bitmap); - - return n; -} - -static inline void iommu_free_ctx(struct iommu *iommu, int ctx) -{ - if (likely(ctx)) { - __clear_bit(ctx, iommu->ctx_bitmap); - if (ctx < iommu->ctx_lowest_free) - iommu->ctx_lowest_free = ctx; - } -} - -static void *dma_4u_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addrp, gfp_t gfp) -{ - unsigned long flags, order, first_page; - struct iommu *iommu; - struct page *page; - int npages, nid; - iopte_t *iopte; - void *ret; - - size = IO_PAGE_ALIGN(size); - order = get_order(size); - if (order >= 10) - return NULL; - - nid = dev->archdata.numa_node; - page = alloc_pages_node(nid, gfp, order); - if (unlikely(!page)) - return NULL; - - first_page = (unsigned long) page_address(page); - memset((char *)first_page, 0, PAGE_SIZE << order); - - iommu = dev->archdata.iommu; - - spin_lock_irqsave(&iommu->lock, flags); - iopte = alloc_npages(dev, iommu, size >> IO_PAGE_SHIFT); - spin_unlock_irqrestore(&iommu->lock, flags); - - if (unlikely(iopte == NULL)) { - free_pages(first_page, order); - return NULL; - } - - *dma_addrp = (iommu->page_table_map_base + - ((iopte - iommu->page_table) << IO_PAGE_SHIFT)); - ret = (void *) first_page; - npages = size >> IO_PAGE_SHIFT; - first_page = __pa(first_page); - while (npages--) { - iopte_val(*iopte) = (IOPTE_CONSISTENT(0UL) | - IOPTE_WRITE | - (first_page & IOPTE_PAGE)); - iopte++; - first_page += IO_PAGE_SIZE; - } - - return ret; -} - -static void dma_4u_free_coherent(struct device *dev, size_t size, - void *cpu, dma_addr_t dvma) -{ - struct iommu *iommu; - iopte_t *iopte; - unsigned long flags, order, npages; - - npages = IO_PAGE_ALIGN(size) >> IO_PAGE_SHIFT; - iommu = dev->archdata.iommu; - iopte = iommu->page_table + - ((dvma - iommu->page_table_map_base) >> IO_PAGE_SHIFT); - - spin_lock_irqsave(&iommu->lock, flags); - - iommu_range_free(iommu, dvma, npages); - - spin_unlock_irqrestore(&iommu->lock, flags); - - order = get_order(size); - if (order < 10) - free_pages((unsigned long)cpu, order); -} - -static dma_addr_t dma_4u_map_single(struct device *dev, void *ptr, size_t sz, - enum dma_data_direction direction) -{ - struct iommu *iommu; - struct strbuf *strbuf; - iopte_t *base; - unsigned long flags, npages, oaddr; - unsigned long i, base_paddr, ctx; - u32 bus_addr, ret; - unsigned long iopte_protection; - - iommu = dev->archdata.iommu; - strbuf = dev->archdata.stc; - - if (unlikely(direction == DMA_NONE)) - goto bad_no_ctx; - - oaddr = (unsigned long)ptr; - npages = IO_PAGE_ALIGN(oaddr + sz) - (oaddr & IO_PAGE_MASK); - npages >>= IO_PAGE_SHIFT; - - spin_lock_irqsave(&iommu->lock, flags); - base = alloc_npages(dev, iommu, npages); - ctx = 0; - if (iommu->iommu_ctxflush) - ctx = iommu_alloc_ctx(iommu); - spin_unlock_irqrestore(&iommu->lock, flags); - - if (unlikely(!base)) - goto bad; - - bus_addr = (iommu->page_table_map_base + - ((base - iommu->page_table) << IO_PAGE_SHIFT)); - ret = bus_addr | (oaddr & ~IO_PAGE_MASK); - base_paddr = __pa(oaddr & IO_PAGE_MASK); - if (strbuf->strbuf_enabled) - iopte_protection = IOPTE_STREAMING(ctx); - else - iopte_protection = IOPTE_CONSISTENT(ctx); - if (direction != DMA_TO_DEVICE) - iopte_protection |= IOPTE_WRITE; - - for (i = 0; i < npages; i++, base++, base_paddr += IO_PAGE_SIZE) - iopte_val(*base) = iopte_protection | base_paddr; - - return ret; - -bad: - iommu_free_ctx(iommu, ctx); -bad_no_ctx: - if (printk_ratelimit()) - WARN_ON(1); - return DMA_ERROR_CODE; -} - -static void strbuf_flush(struct strbuf *strbuf, struct iommu *iommu, - u32 vaddr, unsigned long ctx, unsigned long npages, - enum dma_data_direction direction) -{ - int limit; - - if (strbuf->strbuf_ctxflush && - iommu->iommu_ctxflush) { - unsigned long matchreg, flushreg; - u64 val; - - flushreg = strbuf->strbuf_ctxflush; - matchreg = STC_CTXMATCH_ADDR(strbuf, ctx); - - iommu_write(flushreg, ctx); - val = iommu_read(matchreg); - val &= 0xffff; - if (!val) - goto do_flush_sync; - - while (val) { - if (val & 0x1) - iommu_write(flushreg, ctx); - val >>= 1; - } - val = iommu_read(matchreg); - if (unlikely(val)) { - printk(KERN_WARNING "strbuf_flush: ctx flush " - "timeout matchreg[%lx] ctx[%lx]\n", - val, ctx); - goto do_page_flush; - } - } else { - unsigned long i; - - do_page_flush: - for (i = 0; i < npages; i++, vaddr += IO_PAGE_SIZE) - iommu_write(strbuf->strbuf_pflush, vaddr); - } - -do_flush_sync: - /* If the device could not have possibly put dirty data into - * the streaming cache, no flush-flag synchronization needs - * to be performed. - */ - if (direction == DMA_TO_DEVICE) - return; - - STC_FLUSHFLAG_INIT(strbuf); - iommu_write(strbuf->strbuf_fsync, strbuf->strbuf_flushflag_pa); - (void) iommu_read(iommu->write_complete_reg); - - limit = 100000; - while (!STC_FLUSHFLAG_SET(strbuf)) { - limit--; - if (!limit) - break; - udelay(1); - rmb(); - } - if (!limit) - printk(KERN_WARNING "strbuf_flush: flushflag timeout " - "vaddr[%08x] ctx[%lx] npages[%ld]\n", - vaddr, ctx, npages); -} - -static void dma_4u_unmap_single(struct device *dev, dma_addr_t bus_addr, - size_t sz, enum dma_data_direction direction) -{ - struct iommu *iommu; - struct strbuf *strbuf; - iopte_t *base; - unsigned long flags, npages, ctx, i; - - if (unlikely(direction == DMA_NONE)) { - if (printk_ratelimit()) - WARN_ON(1); - return; - } - - iommu = dev->archdata.iommu; - strbuf = dev->archdata.stc; - - npages = IO_PAGE_ALIGN(bus_addr + sz) - (bus_addr & IO_PAGE_MASK); - npages >>= IO_PAGE_SHIFT; - base = iommu->page_table + - ((bus_addr - iommu->page_table_map_base) >> IO_PAGE_SHIFT); - bus_addr &= IO_PAGE_MASK; - - spin_lock_irqsave(&iommu->lock, flags); - - /* Record the context, if any. */ - ctx = 0; - if (iommu->iommu_ctxflush) - ctx = (iopte_val(*base) & IOPTE_CONTEXT) >> 47UL; - - /* Step 1: Kick data out of streaming buffers if necessary. */ - if (strbuf->strbuf_enabled) - strbuf_flush(strbuf, iommu, bus_addr, ctx, - npages, direction); - - /* Step 2: Clear out TSB entries. */ - for (i = 0; i < npages; i++) - iopte_make_dummy(iommu, base + i); - - iommu_range_free(iommu, bus_addr, npages); - - iommu_free_ctx(iommu, ctx); - - spin_unlock_irqrestore(&iommu->lock, flags); -} - -static int dma_4u_map_sg(struct device *dev, struct scatterlist *sglist, - int nelems, enum dma_data_direction direction) -{ - struct scatterlist *s, *outs, *segstart; - unsigned long flags, handle, prot, ctx; - dma_addr_t dma_next = 0, dma_addr; - unsigned int max_seg_size; - unsigned long seg_boundary_size; - int outcount, incount, i; - struct strbuf *strbuf; - struct iommu *iommu; - unsigned long base_shift; - - BUG_ON(direction == DMA_NONE); - - iommu = dev->archdata.iommu; - strbuf = dev->archdata.stc; - if (nelems == 0 || !iommu) - return 0; - - spin_lock_irqsave(&iommu->lock, flags); - - ctx = 0; - if (iommu->iommu_ctxflush) - ctx = iommu_alloc_ctx(iommu); - - if (strbuf->strbuf_enabled) - prot = IOPTE_STREAMING(ctx); - else - prot = IOPTE_CONSISTENT(ctx); - if (direction != DMA_TO_DEVICE) - prot |= IOPTE_WRITE; - - outs = s = segstart = &sglist[0]; - outcount = 1; - incount = nelems; - handle = 0; - - /* Init first segment length for backout at failure */ - outs->dma_length = 0; - - max_seg_size = dma_get_max_seg_size(dev); - seg_boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, - IO_PAGE_SIZE) >> IO_PAGE_SHIFT; - base_shift = iommu->page_table_map_base >> IO_PAGE_SHIFT; - for_each_sg(sglist, s, nelems, i) { - unsigned long paddr, npages, entry, out_entry = 0, slen; - iopte_t *base; - - slen = s->length; - /* Sanity check */ - if (slen == 0) { - dma_next = 0; - continue; - } - /* Allocate iommu entries for that segment */ - paddr = (unsigned long) SG_ENT_PHYS_ADDRESS(s); - npages = iommu_num_pages(paddr, slen, IO_PAGE_SIZE); - entry = iommu_range_alloc(dev, iommu, npages, &handle); - - /* Handle failure */ - if (unlikely(entry == DMA_ERROR_CODE)) { - if (printk_ratelimit()) - printk(KERN_INFO "iommu_alloc failed, iommu %p paddr %lx" - " npages %lx\n", iommu, paddr, npages); - goto iommu_map_failed; - } - - base = iommu->page_table + entry; - - /* Convert entry to a dma_addr_t */ - dma_addr = iommu->page_table_map_base + - (entry << IO_PAGE_SHIFT); - dma_addr |= (s->offset & ~IO_PAGE_MASK); - - /* Insert into HW table */ - paddr &= IO_PAGE_MASK; - while (npages--) { - iopte_val(*base) = prot | paddr; - base++; - paddr += IO_PAGE_SIZE; - } - - /* If we are in an open segment, try merging */ - if (segstart != s) { - /* We cannot merge if: - * - allocated dma_addr isn't contiguous to previous allocation - */ - if ((dma_addr != dma_next) || - (outs->dma_length + s->length > max_seg_size) || - (is_span_boundary(out_entry, base_shift, - seg_boundary_size, outs, s))) { - /* Can't merge: create a new segment */ - segstart = s; - outcount++; - outs = sg_next(outs); - } else { - outs->dma_length += s->length; - } - } - - if (segstart == s) { - /* This is a new segment, fill entries */ - outs->dma_address = dma_addr; - outs->dma_length = slen; - out_entry = entry; - } - - /* Calculate next page pointer for contiguous check */ - dma_next = dma_addr + slen; - } - - spin_unlock_irqrestore(&iommu->lock, flags); - - if (outcount < incount) { - outs = sg_next(outs); - outs->dma_address = DMA_ERROR_CODE; - outs->dma_length = 0; - } - - return outcount; - -iommu_map_failed: - for_each_sg(sglist, s, nelems, i) { - if (s->dma_length != 0) { - unsigned long vaddr, npages, entry, j; - iopte_t *base; - - vaddr = s->dma_address & IO_PAGE_MASK; - npages = iommu_num_pages(s->dma_address, s->dma_length, - IO_PAGE_SIZE); - iommu_range_free(iommu, vaddr, npages); - - entry = (vaddr - iommu->page_table_map_base) - >> IO_PAGE_SHIFT; - base = iommu->page_table + entry; - - for (j = 0; j < npages; j++) - iopte_make_dummy(iommu, base + j); - - s->dma_address = DMA_ERROR_CODE; - s->dma_length = 0; - } - if (s == outs) - break; - } - spin_unlock_irqrestore(&iommu->lock, flags); - - return 0; -} - -/* If contexts are being used, they are the same in all of the mappings - * we make for a particular SG. - */ -static unsigned long fetch_sg_ctx(struct iommu *iommu, struct scatterlist *sg) -{ - unsigned long ctx = 0; - - if (iommu->iommu_ctxflush) { - iopte_t *base; - u32 bus_addr; - - bus_addr = sg->dma_address & IO_PAGE_MASK; - base = iommu->page_table + - ((bus_addr - iommu->page_table_map_base) >> IO_PAGE_SHIFT); - - ctx = (iopte_val(*base) & IOPTE_CONTEXT) >> 47UL; - } - return ctx; -} - -static void dma_4u_unmap_sg(struct device *dev, struct scatterlist *sglist, - int nelems, enum dma_data_direction direction) -{ - unsigned long flags, ctx; - struct scatterlist *sg; - struct strbuf *strbuf; - struct iommu *iommu; - - BUG_ON(direction == DMA_NONE); - - iommu = dev->archdata.iommu; - strbuf = dev->archdata.stc; - - ctx = fetch_sg_ctx(iommu, sglist); - - spin_lock_irqsave(&iommu->lock, flags); - - sg = sglist; - while (nelems--) { - dma_addr_t dma_handle = sg->dma_address; - unsigned int len = sg->dma_length; - unsigned long npages, entry; - iopte_t *base; - int i; - - if (!len) - break; - npages = iommu_num_pages(dma_handle, len, IO_PAGE_SIZE); - iommu_range_free(iommu, dma_handle, npages); - - entry = ((dma_handle - iommu->page_table_map_base) - >> IO_PAGE_SHIFT); - base = iommu->page_table + entry; - - dma_handle &= IO_PAGE_MASK; - if (strbuf->strbuf_enabled) - strbuf_flush(strbuf, iommu, dma_handle, ctx, - npages, direction); - - for (i = 0; i < npages; i++) - iopte_make_dummy(iommu, base + i); - - sg = sg_next(sg); - } - - iommu_free_ctx(iommu, ctx); - - spin_unlock_irqrestore(&iommu->lock, flags); -} - -static void dma_4u_sync_single_for_cpu(struct device *dev, - dma_addr_t bus_addr, size_t sz, - enum dma_data_direction direction) -{ - struct iommu *iommu; - struct strbuf *strbuf; - unsigned long flags, ctx, npages; - - iommu = dev->archdata.iommu; - strbuf = dev->archdata.stc; - - if (!strbuf->strbuf_enabled) - return; - - spin_lock_irqsave(&iommu->lock, flags); - - npages = IO_PAGE_ALIGN(bus_addr + sz) - (bus_addr & IO_PAGE_MASK); - npages >>= IO_PAGE_SHIFT; - bus_addr &= IO_PAGE_MASK; - - /* Step 1: Record the context, if any. */ - ctx = 0; - if (iommu->iommu_ctxflush && - strbuf->strbuf_ctxflush) { - iopte_t *iopte; - - iopte = iommu->page_table + - ((bus_addr - iommu->page_table_map_base)>>IO_PAGE_SHIFT); - ctx = (iopte_val(*iopte) & IOPTE_CONTEXT) >> 47UL; - } - - /* Step 2: Kick data out of streaming buffers. */ - strbuf_flush(strbuf, iommu, bus_addr, ctx, npages, direction); - - spin_unlock_irqrestore(&iommu->lock, flags); -} - -static void dma_4u_sync_sg_for_cpu(struct device *dev, - struct scatterlist *sglist, int nelems, - enum dma_data_direction direction) -{ - struct iommu *iommu; - struct strbuf *strbuf; - unsigned long flags, ctx, npages, i; - struct scatterlist *sg, *sgprv; - u32 bus_addr; - - iommu = dev->archdata.iommu; - strbuf = dev->archdata.stc; - - if (!strbuf->strbuf_enabled) - return; - - spin_lock_irqsave(&iommu->lock, flags); - - /* Step 1: Record the context, if any. */ - ctx = 0; - if (iommu->iommu_ctxflush && - strbuf->strbuf_ctxflush) { - iopte_t *iopte; - - iopte = iommu->page_table + - ((sglist[0].dma_address - iommu->page_table_map_base) >> IO_PAGE_SHIFT); - ctx = (iopte_val(*iopte) & IOPTE_CONTEXT) >> 47UL; - } - - /* Step 2: Kick data out of streaming buffers. */ - bus_addr = sglist[0].dma_address & IO_PAGE_MASK; - sgprv = NULL; - for_each_sg(sglist, sg, nelems, i) { - if (sg->dma_length == 0) - break; - sgprv = sg; - } - - npages = (IO_PAGE_ALIGN(sgprv->dma_address + sgprv->dma_length) - - bus_addr) >> IO_PAGE_SHIFT; - strbuf_flush(strbuf, iommu, bus_addr, ctx, npages, direction); - - spin_unlock_irqrestore(&iommu->lock, flags); -} - -static const struct dma_ops sun4u_dma_ops = { - .alloc_coherent = dma_4u_alloc_coherent, - .free_coherent = dma_4u_free_coherent, - .map_single = dma_4u_map_single, - .unmap_single = dma_4u_unmap_single, - .map_sg = dma_4u_map_sg, - .unmap_sg = dma_4u_unmap_sg, - .sync_single_for_cpu = dma_4u_sync_single_for_cpu, - .sync_sg_for_cpu = dma_4u_sync_sg_for_cpu, -}; - -const struct dma_ops *dma_ops = &sun4u_dma_ops; -EXPORT_SYMBOL(dma_ops); - -int dma_supported(struct device *dev, u64 device_mask) -{ - struct iommu *iommu = dev->archdata.iommu; - u64 dma_addr_mask = iommu->dma_addr_mask; - - if (device_mask >= (1UL << 32UL)) - return 0; - - if ((device_mask & dma_addr_mask) == dma_addr_mask) - return 1; - -#ifdef CONFIG_PCI - if (dev->bus == &pci_bus_type) - return pci_dma_supported(to_pci_dev(dev), device_mask); -#endif - - return 0; -} -EXPORT_SYMBOL(dma_supported); - -int dma_set_mask(struct device *dev, u64 dma_mask) -{ -#ifdef CONFIG_PCI - if (dev->bus == &pci_bus_type) - return pci_set_dma_mask(to_pci_dev(dev), dma_mask); -#endif - return -EINVAL; -} -EXPORT_SYMBOL(dma_set_mask); diff --git a/arch/sparc64/kernel/iommu_common.h b/arch/sparc64/kernel/iommu_common.h deleted file mode 100644 index 591f5879039c..000000000000 --- a/arch/sparc64/kernel/iommu_common.h +++ /dev/null @@ -1,59 +0,0 @@ -/* iommu_common.h: UltraSparc SBUS/PCI common iommu declarations. - * - * Copyright (C) 1999, 2008 David S. Miller (davem@davemloft.net) - */ - -#ifndef _IOMMU_COMMON_H -#define _IOMMU_COMMON_H - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/scatterlist.h> -#include <linux/device.h> -#include <linux/iommu-helper.h> - -#include <asm/iommu.h> -#include <asm/scatterlist.h> - -/* - * These give mapping size of each iommu pte/tlb. - */ -#define IO_PAGE_SHIFT 13 -#define IO_PAGE_SIZE (1UL << IO_PAGE_SHIFT) -#define IO_PAGE_MASK (~(IO_PAGE_SIZE-1)) -#define IO_PAGE_ALIGN(addr) ALIGN(addr, IO_PAGE_SIZE) - -#define IO_TSB_ENTRIES (128*1024) -#define IO_TSB_SIZE (IO_TSB_ENTRIES * 8) - -/* - * This is the hardwired shift in the iotlb tag/data parts. - */ -#define IOMMU_PAGE_SHIFT 13 - -#define SG_ENT_PHYS_ADDRESS(SG) (__pa(sg_virt((SG)))) - -static inline int is_span_boundary(unsigned long entry, - unsigned long shift, - unsigned long boundary_size, - struct scatterlist *outs, - struct scatterlist *sg) -{ - unsigned long paddr = SG_ENT_PHYS_ADDRESS(outs); - int nr = iommu_num_pages(paddr, outs->dma_length + sg->length, - IO_PAGE_SIZE); - - return iommu_is_span_boundary(entry, nr, shift, boundary_size); -} - -extern unsigned long iommu_range_alloc(struct device *dev, - struct iommu *iommu, - unsigned long npages, - unsigned long *handle); -extern void iommu_range_free(struct iommu *iommu, - dma_addr_t dma_addr, - unsigned long npages); - -#endif /* _IOMMU_COMMON_H */ diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c deleted file mode 100644 index 52fc836f464d..000000000000 --- a/arch/sparc64/kernel/irq.c +++ /dev/null @@ -1,1038 +0,0 @@ -/* irq.c: UltraSparc IRQ handling/init/registry. - * - * Copyright (C) 1997, 2007, 2008 David S. Miller (davem@davemloft.net) - * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) - */ - -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/linkage.h> -#include <linux/ptrace.h> -#include <linux/errno.h> -#include <linux/kernel_stat.h> -#include <linux/signal.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/slab.h> -#include <linux/random.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <linux/bootmem.h> -#include <linux/irq.h> - -#include <asm/ptrace.h> -#include <asm/processor.h> -#include <asm/atomic.h> -#include <asm/system.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/iommu.h> -#include <asm/upa.h> -#include <asm/oplib.h> -#include <asm/prom.h> -#include <asm/timer.h> -#include <asm/smp.h> -#include <asm/starfire.h> -#include <asm/uaccess.h> -#include <asm/cache.h> -#include <asm/cpudata.h> -#include <asm/auxio.h> -#include <asm/head.h> -#include <asm/hypervisor.h> -#include <asm/cacheflush.h> - -#include "entry.h" - -#define NUM_IVECS (IMAP_INR + 1) - -struct ino_bucket *ivector_table; -unsigned long ivector_table_pa; - -/* On several sun4u processors, it is illegal to mix bypass and - * non-bypass accesses. Therefore we access all INO buckets - * using bypass accesses only. - */ -static unsigned long bucket_get_chain_pa(unsigned long bucket_pa) -{ - unsigned long ret; - - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=&r" (ret) - : "r" (bucket_pa + - offsetof(struct ino_bucket, - __irq_chain_pa)), - "i" (ASI_PHYS_USE_EC)); - - return ret; -} - -static void bucket_clear_chain_pa(unsigned long bucket_pa) -{ - __asm__ __volatile__("stxa %%g0, [%0] %1" - : /* no outputs */ - : "r" (bucket_pa + - offsetof(struct ino_bucket, - __irq_chain_pa)), - "i" (ASI_PHYS_USE_EC)); -} - -static unsigned int bucket_get_virt_irq(unsigned long bucket_pa) -{ - unsigned int ret; - - __asm__ __volatile__("lduwa [%1] %2, %0" - : "=&r" (ret) - : "r" (bucket_pa + - offsetof(struct ino_bucket, - __virt_irq)), - "i" (ASI_PHYS_USE_EC)); - - return ret; -} - -static void bucket_set_virt_irq(unsigned long bucket_pa, - unsigned int virt_irq) -{ - __asm__ __volatile__("stwa %0, [%1] %2" - : /* no outputs */ - : "r" (virt_irq), - "r" (bucket_pa + - offsetof(struct ino_bucket, - __virt_irq)), - "i" (ASI_PHYS_USE_EC)); -} - -#define irq_work_pa(__cpu) &(trap_block[(__cpu)].irq_worklist_pa) - -static struct { - unsigned int dev_handle; - unsigned int dev_ino; - unsigned int in_use; -} virt_irq_table[NR_IRQS]; -static DEFINE_SPINLOCK(virt_irq_alloc_lock); - -unsigned char virt_irq_alloc(unsigned int dev_handle, - unsigned int dev_ino) -{ - unsigned long flags; - unsigned char ent; - - BUILD_BUG_ON(NR_IRQS >= 256); - - spin_lock_irqsave(&virt_irq_alloc_lock, flags); - - for (ent = 1; ent < NR_IRQS; ent++) { - if (!virt_irq_table[ent].in_use) - break; - } - if (ent >= NR_IRQS) { - printk(KERN_ERR "IRQ: Out of virtual IRQs.\n"); - ent = 0; - } else { - virt_irq_table[ent].dev_handle = dev_handle; - virt_irq_table[ent].dev_ino = dev_ino; - virt_irq_table[ent].in_use = 1; - } - - spin_unlock_irqrestore(&virt_irq_alloc_lock, flags); - - return ent; -} - -#ifdef CONFIG_PCI_MSI -void virt_irq_free(unsigned int virt_irq) -{ - unsigned long flags; - - if (virt_irq >= NR_IRQS) - return; - - spin_lock_irqsave(&virt_irq_alloc_lock, flags); - - virt_irq_table[virt_irq].in_use = 0; - - spin_unlock_irqrestore(&virt_irq_alloc_lock, flags); -} -#endif - -/* - * /proc/interrupts printing: - */ - -int show_interrupts(struct seq_file *p, void *v) -{ - int i = *(loff_t *) v, j; - struct irqaction * action; - unsigned long flags; - - if (i == 0) { - seq_printf(p, " "); - for_each_online_cpu(j) - seq_printf(p, "CPU%d ",j); - seq_putc(p, '\n'); - } - - if (i < NR_IRQS) { - spin_lock_irqsave(&irq_desc[i].lock, flags); - action = irq_desc[i].action; - if (!action) - goto skip; - seq_printf(p, "%3d: ",i); -#ifndef CONFIG_SMP - seq_printf(p, "%10u ", kstat_irqs(i)); -#else - for_each_online_cpu(j) - seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]); -#endif - seq_printf(p, " %9s", irq_desc[i].chip->typename); - seq_printf(p, " %s", action->name); - - for (action=action->next; action; action = action->next) - seq_printf(p, ", %s", action->name); - - seq_putc(p, '\n'); -skip: - spin_unlock_irqrestore(&irq_desc[i].lock, flags); - } - return 0; -} - -static unsigned int sun4u_compute_tid(unsigned long imap, unsigned long cpuid) -{ - unsigned int tid; - - if (this_is_starfire) { - tid = starfire_translate(imap, cpuid); - tid <<= IMAP_TID_SHIFT; - tid &= IMAP_TID_UPA; - } else { - if (tlb_type == cheetah || tlb_type == cheetah_plus) { - unsigned long ver; - - __asm__ ("rdpr %%ver, %0" : "=r" (ver)); - if ((ver >> 32UL) == __JALAPENO_ID || - (ver >> 32UL) == __SERRANO_ID) { - tid = cpuid << IMAP_TID_SHIFT; - tid &= IMAP_TID_JBUS; - } else { - unsigned int a = cpuid & 0x1f; - unsigned int n = (cpuid >> 5) & 0x1f; - - tid = ((a << IMAP_AID_SHIFT) | - (n << IMAP_NID_SHIFT)); - tid &= (IMAP_AID_SAFARI | - IMAP_NID_SAFARI);; - } - } else { - tid = cpuid << IMAP_TID_SHIFT; - tid &= IMAP_TID_UPA; - } - } - - return tid; -} - -struct irq_handler_data { - unsigned long iclr; - unsigned long imap; - - void (*pre_handler)(unsigned int, void *, void *); - void *arg1; - void *arg2; -}; - -#ifdef CONFIG_SMP -static int irq_choose_cpu(unsigned int virt_irq) -{ - cpumask_t mask = irq_desc[virt_irq].affinity; - int cpuid; - - if (cpus_equal(mask, CPU_MASK_ALL)) { - static int irq_rover; - static DEFINE_SPINLOCK(irq_rover_lock); - unsigned long flags; - - /* Round-robin distribution... */ - do_round_robin: - spin_lock_irqsave(&irq_rover_lock, flags); - - while (!cpu_online(irq_rover)) { - if (++irq_rover >= NR_CPUS) - irq_rover = 0; - } - cpuid = irq_rover; - do { - if (++irq_rover >= NR_CPUS) - irq_rover = 0; - } while (!cpu_online(irq_rover)); - - spin_unlock_irqrestore(&irq_rover_lock, flags); - } else { - cpumask_t tmp; - - cpus_and(tmp, cpu_online_map, mask); - - if (cpus_empty(tmp)) - goto do_round_robin; - - cpuid = first_cpu(tmp); - } - - return cpuid; -} -#else -static int irq_choose_cpu(unsigned int virt_irq) -{ - return real_hard_smp_processor_id(); -} -#endif - -static void sun4u_irq_enable(unsigned int virt_irq) -{ - struct irq_handler_data *data = get_irq_chip_data(virt_irq); - - if (likely(data)) { - unsigned long cpuid, imap, val; - unsigned int tid; - - cpuid = irq_choose_cpu(virt_irq); - imap = data->imap; - - tid = sun4u_compute_tid(imap, cpuid); - - val = upa_readq(imap); - val &= ~(IMAP_TID_UPA | IMAP_TID_JBUS | - IMAP_AID_SAFARI | IMAP_NID_SAFARI); - val |= tid | IMAP_VALID; - upa_writeq(val, imap); - upa_writeq(ICLR_IDLE, data->iclr); - } -} - -static void sun4u_set_affinity(unsigned int virt_irq, cpumask_t mask) -{ - sun4u_irq_enable(virt_irq); -} - -static void sun4u_irq_disable(unsigned int virt_irq) -{ - struct irq_handler_data *data = get_irq_chip_data(virt_irq); - - if (likely(data)) { - unsigned long imap = data->imap; - unsigned long tmp = upa_readq(imap); - - tmp &= ~IMAP_VALID; - upa_writeq(tmp, imap); - } -} - -static void sun4u_irq_eoi(unsigned int virt_irq) -{ - struct irq_handler_data *data = get_irq_chip_data(virt_irq); - struct irq_desc *desc = irq_desc + virt_irq; - - if (unlikely(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS))) - return; - - if (likely(data)) - upa_writeq(ICLR_IDLE, data->iclr); -} - -static void sun4v_irq_enable(unsigned int virt_irq) -{ - unsigned int ino = virt_irq_table[virt_irq].dev_ino; - unsigned long cpuid = irq_choose_cpu(virt_irq); - int err; - - err = sun4v_intr_settarget(ino, cpuid); - if (err != HV_EOK) - printk(KERN_ERR "sun4v_intr_settarget(%x,%lu): " - "err(%d)\n", ino, cpuid, err); - err = sun4v_intr_setstate(ino, HV_INTR_STATE_IDLE); - if (err != HV_EOK) - printk(KERN_ERR "sun4v_intr_setstate(%x): " - "err(%d)\n", ino, err); - err = sun4v_intr_setenabled(ino, HV_INTR_ENABLED); - if (err != HV_EOK) - printk(KERN_ERR "sun4v_intr_setenabled(%x): err(%d)\n", - ino, err); -} - -static void sun4v_set_affinity(unsigned int virt_irq, cpumask_t mask) -{ - unsigned int ino = virt_irq_table[virt_irq].dev_ino; - unsigned long cpuid = irq_choose_cpu(virt_irq); - int err; - - err = sun4v_intr_settarget(ino, cpuid); - if (err != HV_EOK) - printk(KERN_ERR "sun4v_intr_settarget(%x,%lu): " - "err(%d)\n", ino, cpuid, err); -} - -static void sun4v_irq_disable(unsigned int virt_irq) -{ - unsigned int ino = virt_irq_table[virt_irq].dev_ino; - int err; - - err = sun4v_intr_setenabled(ino, HV_INTR_DISABLED); - if (err != HV_EOK) - printk(KERN_ERR "sun4v_intr_setenabled(%x): " - "err(%d)\n", ino, err); -} - -static void sun4v_irq_eoi(unsigned int virt_irq) -{ - unsigned int ino = virt_irq_table[virt_irq].dev_ino; - struct irq_desc *desc = irq_desc + virt_irq; - int err; - - if (unlikely(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS))) - return; - - err = sun4v_intr_setstate(ino, HV_INTR_STATE_IDLE); - if (err != HV_EOK) - printk(KERN_ERR "sun4v_intr_setstate(%x): " - "err(%d)\n", ino, err); -} - -static void sun4v_virq_enable(unsigned int virt_irq) -{ - unsigned long cpuid, dev_handle, dev_ino; - int err; - - cpuid = irq_choose_cpu(virt_irq); - - dev_handle = virt_irq_table[virt_irq].dev_handle; - dev_ino = virt_irq_table[virt_irq].dev_ino; - - err = sun4v_vintr_set_target(dev_handle, dev_ino, cpuid); - if (err != HV_EOK) - printk(KERN_ERR "sun4v_vintr_set_target(%lx,%lx,%lu): " - "err(%d)\n", - dev_handle, dev_ino, cpuid, err); - err = sun4v_vintr_set_state(dev_handle, dev_ino, - HV_INTR_STATE_IDLE); - if (err != HV_EOK) - printk(KERN_ERR "sun4v_vintr_set_state(%lx,%lx," - "HV_INTR_STATE_IDLE): err(%d)\n", - dev_handle, dev_ino, err); - err = sun4v_vintr_set_valid(dev_handle, dev_ino, - HV_INTR_ENABLED); - if (err != HV_EOK) - printk(KERN_ERR "sun4v_vintr_set_state(%lx,%lx," - "HV_INTR_ENABLED): err(%d)\n", - dev_handle, dev_ino, err); -} - -static void sun4v_virt_set_affinity(unsigned int virt_irq, cpumask_t mask) -{ - unsigned long cpuid, dev_handle, dev_ino; - int err; - - cpuid = irq_choose_cpu(virt_irq); - - dev_handle = virt_irq_table[virt_irq].dev_handle; - dev_ino = virt_irq_table[virt_irq].dev_ino; - - err = sun4v_vintr_set_target(dev_handle, dev_ino, cpuid); - if (err != HV_EOK) - printk(KERN_ERR "sun4v_vintr_set_target(%lx,%lx,%lu): " - "err(%d)\n", - dev_handle, dev_ino, cpuid, err); -} - -static void sun4v_virq_disable(unsigned int virt_irq) -{ - unsigned long dev_handle, dev_ino; - int err; - - dev_handle = virt_irq_table[virt_irq].dev_handle; - dev_ino = virt_irq_table[virt_irq].dev_ino; - - err = sun4v_vintr_set_valid(dev_handle, dev_ino, - HV_INTR_DISABLED); - if (err != HV_EOK) - printk(KERN_ERR "sun4v_vintr_set_state(%lx,%lx," - "HV_INTR_DISABLED): err(%d)\n", - dev_handle, dev_ino, err); -} - -static void sun4v_virq_eoi(unsigned int virt_irq) -{ - struct irq_desc *desc = irq_desc + virt_irq; - unsigned long dev_handle, dev_ino; - int err; - - if (unlikely(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS))) - return; - - dev_handle = virt_irq_table[virt_irq].dev_handle; - dev_ino = virt_irq_table[virt_irq].dev_ino; - - err = sun4v_vintr_set_state(dev_handle, dev_ino, - HV_INTR_STATE_IDLE); - if (err != HV_EOK) - printk(KERN_ERR "sun4v_vintr_set_state(%lx,%lx," - "HV_INTR_STATE_IDLE): err(%d)\n", - dev_handle, dev_ino, err); -} - -static struct irq_chip sun4u_irq = { - .typename = "sun4u", - .enable = sun4u_irq_enable, - .disable = sun4u_irq_disable, - .eoi = sun4u_irq_eoi, - .set_affinity = sun4u_set_affinity, -}; - -static struct irq_chip sun4v_irq = { - .typename = "sun4v", - .enable = sun4v_irq_enable, - .disable = sun4v_irq_disable, - .eoi = sun4v_irq_eoi, - .set_affinity = sun4v_set_affinity, -}; - -static struct irq_chip sun4v_virq = { - .typename = "vsun4v", - .enable = sun4v_virq_enable, - .disable = sun4v_virq_disable, - .eoi = sun4v_virq_eoi, - .set_affinity = sun4v_virt_set_affinity, -}; - -static void pre_flow_handler(unsigned int virt_irq, - struct irq_desc *desc) -{ - struct irq_handler_data *data = get_irq_chip_data(virt_irq); - unsigned int ino = virt_irq_table[virt_irq].dev_ino; - - data->pre_handler(ino, data->arg1, data->arg2); - - handle_fasteoi_irq(virt_irq, desc); -} - -void irq_install_pre_handler(int virt_irq, - void (*func)(unsigned int, void *, void *), - void *arg1, void *arg2) -{ - struct irq_handler_data *data = get_irq_chip_data(virt_irq); - struct irq_desc *desc = irq_desc + virt_irq; - - data->pre_handler = func; - data->arg1 = arg1; - data->arg2 = arg2; - - desc->handle_irq = pre_flow_handler; -} - -unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap) -{ - struct ino_bucket *bucket; - struct irq_handler_data *data; - unsigned int virt_irq; - int ino; - - BUG_ON(tlb_type == hypervisor); - - ino = (upa_readq(imap) & (IMAP_IGN | IMAP_INO)) + inofixup; - bucket = &ivector_table[ino]; - virt_irq = bucket_get_virt_irq(__pa(bucket)); - if (!virt_irq) { - virt_irq = virt_irq_alloc(0, ino); - bucket_set_virt_irq(__pa(bucket), virt_irq); - set_irq_chip_and_handler_name(virt_irq, - &sun4u_irq, - handle_fasteoi_irq, - "IVEC"); - } - - data = get_irq_chip_data(virt_irq); - if (unlikely(data)) - goto out; - - data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC); - if (unlikely(!data)) { - prom_printf("IRQ: kzalloc(irq_handler_data) failed.\n"); - prom_halt(); - } - set_irq_chip_data(virt_irq, data); - - data->imap = imap; - data->iclr = iclr; - -out: - return virt_irq; -} - -static unsigned int sun4v_build_common(unsigned long sysino, - struct irq_chip *chip) -{ - struct ino_bucket *bucket; - struct irq_handler_data *data; - unsigned int virt_irq; - - BUG_ON(tlb_type != hypervisor); - - bucket = &ivector_table[sysino]; - virt_irq = bucket_get_virt_irq(__pa(bucket)); - if (!virt_irq) { - virt_irq = virt_irq_alloc(0, sysino); - bucket_set_virt_irq(__pa(bucket), virt_irq); - set_irq_chip_and_handler_name(virt_irq, chip, - handle_fasteoi_irq, - "IVEC"); - } - - data = get_irq_chip_data(virt_irq); - if (unlikely(data)) - goto out; - - data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC); - if (unlikely(!data)) { - prom_printf("IRQ: kzalloc(irq_handler_data) failed.\n"); - prom_halt(); - } - set_irq_chip_data(virt_irq, data); - - /* Catch accidental accesses to these things. IMAP/ICLR handling - * is done by hypervisor calls on sun4v platforms, not by direct - * register accesses. - */ - data->imap = ~0UL; - data->iclr = ~0UL; - -out: - return virt_irq; -} - -unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino) -{ - unsigned long sysino = sun4v_devino_to_sysino(devhandle, devino); - - return sun4v_build_common(sysino, &sun4v_irq); -} - -unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino) -{ - struct irq_handler_data *data; - unsigned long hv_err, cookie; - struct ino_bucket *bucket; - struct irq_desc *desc; - unsigned int virt_irq; - - bucket = kzalloc(sizeof(struct ino_bucket), GFP_ATOMIC); - if (unlikely(!bucket)) - return 0; - __flush_dcache_range((unsigned long) bucket, - ((unsigned long) bucket + - sizeof(struct ino_bucket))); - - virt_irq = virt_irq_alloc(devhandle, devino); - bucket_set_virt_irq(__pa(bucket), virt_irq); - - set_irq_chip_and_handler_name(virt_irq, &sun4v_virq, - handle_fasteoi_irq, - "IVEC"); - - data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC); - if (unlikely(!data)) - return 0; - - /* In order to make the LDC channel startup sequence easier, - * especially wrt. locking, we do not let request_irq() enable - * the interrupt. - */ - desc = irq_desc + virt_irq; - desc->status |= IRQ_NOAUTOEN; - - set_irq_chip_data(virt_irq, data); - - /* Catch accidental accesses to these things. IMAP/ICLR handling - * is done by hypervisor calls on sun4v platforms, not by direct - * register accesses. - */ - data->imap = ~0UL; - data->iclr = ~0UL; - - cookie = ~__pa(bucket); - hv_err = sun4v_vintr_set_cookie(devhandle, devino, cookie); - if (hv_err) { - prom_printf("IRQ: Fatal, cannot set cookie for [%x:%x] " - "err=%lu\n", devhandle, devino, hv_err); - prom_halt(); - } - - return virt_irq; -} - -void ack_bad_irq(unsigned int virt_irq) -{ - unsigned int ino = virt_irq_table[virt_irq].dev_ino; - - if (!ino) - ino = 0xdeadbeef; - - printk(KERN_CRIT "Unexpected IRQ from ino[%x] virt_irq[%u]\n", - ino, virt_irq); -} - -void *hardirq_stack[NR_CPUS]; -void *softirq_stack[NR_CPUS]; - -static __attribute__((always_inline)) void *set_hardirq_stack(void) -{ - void *orig_sp, *sp = hardirq_stack[smp_processor_id()]; - - __asm__ __volatile__("mov %%sp, %0" : "=r" (orig_sp)); - if (orig_sp < sp || - orig_sp > (sp + THREAD_SIZE)) { - sp += THREAD_SIZE - 192 - STACK_BIAS; - __asm__ __volatile__("mov %0, %%sp" : : "r" (sp)); - } - - return orig_sp; -} -static __attribute__((always_inline)) void restore_hardirq_stack(void *orig_sp) -{ - __asm__ __volatile__("mov %0, %%sp" : : "r" (orig_sp)); -} - -void handler_irq(int irq, struct pt_regs *regs) -{ - unsigned long pstate, bucket_pa; - struct pt_regs *old_regs; - void *orig_sp; - - clear_softint(1 << irq); - - old_regs = set_irq_regs(regs); - irq_enter(); - - /* Grab an atomic snapshot of the pending IVECs. */ - __asm__ __volatile__("rdpr %%pstate, %0\n\t" - "wrpr %0, %3, %%pstate\n\t" - "ldx [%2], %1\n\t" - "stx %%g0, [%2]\n\t" - "wrpr %0, 0x0, %%pstate\n\t" - : "=&r" (pstate), "=&r" (bucket_pa) - : "r" (irq_work_pa(smp_processor_id())), - "i" (PSTATE_IE) - : "memory"); - - orig_sp = set_hardirq_stack(); - - while (bucket_pa) { - struct irq_desc *desc; - unsigned long next_pa; - unsigned int virt_irq; - - next_pa = bucket_get_chain_pa(bucket_pa); - virt_irq = bucket_get_virt_irq(bucket_pa); - bucket_clear_chain_pa(bucket_pa); - - desc = irq_desc + virt_irq; - - desc->handle_irq(virt_irq, desc); - - bucket_pa = next_pa; - } - - restore_hardirq_stack(orig_sp); - - irq_exit(); - set_irq_regs(old_regs); -} - -void do_softirq(void) -{ - unsigned long flags; - - if (in_interrupt()) - return; - - local_irq_save(flags); - - if (local_softirq_pending()) { - void *orig_sp, *sp = softirq_stack[smp_processor_id()]; - - sp += THREAD_SIZE - 192 - STACK_BIAS; - - __asm__ __volatile__("mov %%sp, %0\n\t" - "mov %1, %%sp" - : "=&r" (orig_sp) - : "r" (sp)); - __do_softirq(); - __asm__ __volatile__("mov %0, %%sp" - : : "r" (orig_sp)); - } - - local_irq_restore(flags); -} - -#ifdef CONFIG_HOTPLUG_CPU -void fixup_irqs(void) -{ - unsigned int irq; - - for (irq = 0; irq < NR_IRQS; irq++) { - unsigned long flags; - - spin_lock_irqsave(&irq_desc[irq].lock, flags); - if (irq_desc[irq].action && - !(irq_desc[irq].status & IRQ_PER_CPU)) { - if (irq_desc[irq].chip->set_affinity) - irq_desc[irq].chip->set_affinity(irq, - irq_desc[irq].affinity); - } - spin_unlock_irqrestore(&irq_desc[irq].lock, flags); - } - - tick_ops->disable_irq(); -} -#endif - -struct sun5_timer { - u64 count0; - u64 limit0; - u64 count1; - u64 limit1; -}; - -static struct sun5_timer *prom_timers; -static u64 prom_limit0, prom_limit1; - -static void map_prom_timers(void) -{ - struct device_node *dp; - const unsigned int *addr; - - /* PROM timer node hangs out in the top level of device siblings... */ - dp = of_find_node_by_path("/"); - dp = dp->child; - while (dp) { - if (!strcmp(dp->name, "counter-timer")) - break; - dp = dp->sibling; - } - - /* Assume if node is not present, PROM uses different tick mechanism - * which we should not care about. - */ - if (!dp) { - prom_timers = (struct sun5_timer *) 0; - return; - } - - /* If PROM is really using this, it must be mapped by him. */ - addr = of_get_property(dp, "address", NULL); - if (!addr) { - prom_printf("PROM does not have timer mapped, trying to continue.\n"); - prom_timers = (struct sun5_timer *) 0; - return; - } - prom_timers = (struct sun5_timer *) ((unsigned long)addr[0]); -} - -static void kill_prom_timer(void) -{ - if (!prom_timers) - return; - - /* Save them away for later. */ - prom_limit0 = prom_timers->limit0; - prom_limit1 = prom_timers->limit1; - - /* Just as in sun4c/sun4m PROM uses timer which ticks at IRQ 14. - * We turn both off here just to be paranoid. - */ - prom_timers->limit0 = 0; - prom_timers->limit1 = 0; - - /* Wheee, eat the interrupt packet too... */ - __asm__ __volatile__( -" mov 0x40, %%g2\n" -" ldxa [%%g0] %0, %%g1\n" -" ldxa [%%g2] %1, %%g1\n" -" stxa %%g0, [%%g0] %0\n" -" membar #Sync\n" - : /* no outputs */ - : "i" (ASI_INTR_RECEIVE), "i" (ASI_INTR_R) - : "g1", "g2"); -} - -void notrace init_irqwork_curcpu(void) -{ - int cpu = hard_smp_processor_id(); - - trap_block[cpu].irq_worklist_pa = 0UL; -} - -/* Please be very careful with register_one_mondo() and - * sun4v_register_mondo_queues(). - * - * On SMP this gets invoked from the CPU trampoline before - * the cpu has fully taken over the trap table from OBP, - * and it's kernel stack + %g6 thread register state is - * not fully cooked yet. - * - * Therefore you cannot make any OBP calls, not even prom_printf, - * from these two routines. - */ -static void __cpuinit register_one_mondo(unsigned long paddr, unsigned long type, unsigned long qmask) -{ - unsigned long num_entries = (qmask + 1) / 64; - unsigned long status; - - status = sun4v_cpu_qconf(type, paddr, num_entries); - if (status != HV_EOK) { - prom_printf("SUN4V: sun4v_cpu_qconf(%lu:%lx:%lu) failed, " - "err %lu\n", type, paddr, num_entries, status); - prom_halt(); - } -} - -void __cpuinit notrace sun4v_register_mondo_queues(int this_cpu) -{ - struct trap_per_cpu *tb = &trap_block[this_cpu]; - - register_one_mondo(tb->cpu_mondo_pa, HV_CPU_QUEUE_CPU_MONDO, - tb->cpu_mondo_qmask); - register_one_mondo(tb->dev_mondo_pa, HV_CPU_QUEUE_DEVICE_MONDO, - tb->dev_mondo_qmask); - register_one_mondo(tb->resum_mondo_pa, HV_CPU_QUEUE_RES_ERROR, - tb->resum_qmask); - register_one_mondo(tb->nonresum_mondo_pa, HV_CPU_QUEUE_NONRES_ERROR, - tb->nonresum_qmask); -} - -static void __init alloc_one_mondo(unsigned long *pa_ptr, unsigned long qmask) -{ - unsigned long size = PAGE_ALIGN(qmask + 1); - void *p = __alloc_bootmem(size, size, 0); - if (!p) { - prom_printf("SUN4V: Error, cannot allocate mondo queue.\n"); - prom_halt(); - } - - *pa_ptr = __pa(p); -} - -static void __init alloc_one_kbuf(unsigned long *pa_ptr, unsigned long qmask) -{ - unsigned long size = PAGE_ALIGN(qmask + 1); - void *p = __alloc_bootmem(size, size, 0); - - if (!p) { - prom_printf("SUN4V: Error, cannot allocate kbuf page.\n"); - prom_halt(); - } - - *pa_ptr = __pa(p); -} - -static void __init init_cpu_send_mondo_info(struct trap_per_cpu *tb) -{ -#ifdef CONFIG_SMP - void *page; - - BUILD_BUG_ON((NR_CPUS * sizeof(u16)) > (PAGE_SIZE - 64)); - - page = alloc_bootmem_pages(PAGE_SIZE); - if (!page) { - prom_printf("SUN4V: Error, cannot allocate cpu mondo page.\n"); - prom_halt(); - } - - tb->cpu_mondo_block_pa = __pa(page); - tb->cpu_list_pa = __pa(page + 64); -#endif -} - -/* Allocate mondo and error queues for all possible cpus. */ -static void __init sun4v_init_mondo_queues(void) -{ - int cpu; - - for_each_possible_cpu(cpu) { - struct trap_per_cpu *tb = &trap_block[cpu]; - - alloc_one_mondo(&tb->cpu_mondo_pa, tb->cpu_mondo_qmask); - alloc_one_mondo(&tb->dev_mondo_pa, tb->dev_mondo_qmask); - alloc_one_mondo(&tb->resum_mondo_pa, tb->resum_qmask); - alloc_one_kbuf(&tb->resum_kernel_buf_pa, tb->resum_qmask); - alloc_one_mondo(&tb->nonresum_mondo_pa, tb->nonresum_qmask); - alloc_one_kbuf(&tb->nonresum_kernel_buf_pa, - tb->nonresum_qmask); - } -} - -static void __init init_send_mondo_info(void) -{ - int cpu; - - for_each_possible_cpu(cpu) { - struct trap_per_cpu *tb = &trap_block[cpu]; - - init_cpu_send_mondo_info(tb); - } -} - -static struct irqaction timer_irq_action = { - .name = "timer", -}; - -/* Only invoked on boot processor. */ -void __init init_IRQ(void) -{ - unsigned long size; - - map_prom_timers(); - kill_prom_timer(); - - size = sizeof(struct ino_bucket) * NUM_IVECS; - ivector_table = alloc_bootmem(size); - if (!ivector_table) { - prom_printf("Fatal error, cannot allocate ivector_table\n"); - prom_halt(); - } - __flush_dcache_range((unsigned long) ivector_table, - ((unsigned long) ivector_table) + size); - - ivector_table_pa = __pa(ivector_table); - - if (tlb_type == hypervisor) - sun4v_init_mondo_queues(); - - init_send_mondo_info(); - - if (tlb_type == hypervisor) { - /* Load up the boot cpu's entries. */ - sun4v_register_mondo_queues(hard_smp_processor_id()); - } - - /* We need to clear any IRQ's pending in the soft interrupt - * registers, a spurious one could be left around from the - * PROM timer which we just disabled. - */ - clear_softint(get_softint()); - - /* Now that ivector table is initialized, it is safe - * to receive IRQ vector traps. We will normally take - * one or two right now, in case some device PROM used - * to boot us wants to speak to us. We just ignore them. - */ - __asm__ __volatile__("rdpr %%pstate, %%g1\n\t" - "or %%g1, %0, %%g1\n\t" - "wrpr %%g1, 0x0, %%pstate" - : /* No outputs */ - : "i" (PSTATE_IE) - : "g1"); - - irq_desc[0].action = &timer_irq_action; -} diff --git a/arch/sparc64/kernel/itlb_miss.S b/arch/sparc64/kernel/itlb_miss.S deleted file mode 100644 index 5a8377b54955..000000000000 --- a/arch/sparc64/kernel/itlb_miss.S +++ /dev/null @@ -1,39 +0,0 @@ -/* ITLB ** ICACHE line 1: Context 0 check and TSB load */ - ldxa [%g0] ASI_IMMU_TSB_8KB_PTR, %g1 ! Get TSB 8K pointer - ldxa [%g0] ASI_IMMU, %g6 ! Get TAG TARGET - srlx %g6, 48, %g5 ! Get context - sllx %g6, 22, %g6 ! Zero out context - brz,pn %g5, kvmap_itlb ! Context 0 processing - srlx %g6, 22, %g6 ! Delay slot - TSB_LOAD_QUAD(%g1, %g4) ! Load TSB entry - cmp %g4, %g6 ! Compare TAG - -/* ITLB ** ICACHE line 2: TSB compare and TLB load */ - bne,pn %xcc, tsb_miss_itlb ! Miss - mov FAULT_CODE_ITLB, %g3 - sethi %hi(_PAGE_EXEC_4U), %g4 - andcc %g5, %g4, %g0 ! Executable? - be,pn %xcc, tsb_do_fault - nop ! Delay slot, fill me - stxa %g5, [%g0] ASI_ITLB_DATA_IN ! Load TLB - retry ! Trap done - -/* ITLB ** ICACHE line 3: */ - nop - nop - nop - nop - nop - nop - nop - nop - -/* ITLB ** ICACHE line 4: */ - nop - nop - nop - nop - nop - nop - nop - nop diff --git a/arch/sparc64/kernel/ivec.S b/arch/sparc64/kernel/ivec.S deleted file mode 100644 index d29f92ebca5e..000000000000 --- a/arch/sparc64/kernel/ivec.S +++ /dev/null @@ -1,51 +0,0 @@ - /* The registers for cross calls will be: - * - * DATA 0: [low 32-bits] Address of function to call, jmp to this - * [high 32-bits] MMU Context Argument 0, place in %g5 - * DATA 1: Address Argument 1, place in %g1 - * DATA 2: Address Argument 2, place in %g7 - * - * With this method we can do most of the cross-call tlb/cache - * flushing very quickly. - */ - .align 32 - .globl do_ivec - .type do_ivec,#function -do_ivec: - mov 0x40, %g3 - ldxa [%g3 + %g0] ASI_INTR_R, %g3 - sethi %hi(KERNBASE), %g4 - cmp %g3, %g4 - bgeu,pn %xcc, do_ivec_xcall - srlx %g3, 32, %g5 - stxa %g0, [%g0] ASI_INTR_RECEIVE - membar #Sync - - sethi %hi(ivector_table_pa), %g2 - ldx [%g2 + %lo(ivector_table_pa)], %g2 - sllx %g3, 4, %g3 - add %g2, %g3, %g3 - - TRAP_LOAD_IRQ_WORK_PA(%g6, %g1) - - ldx [%g6], %g5 - stxa %g5, [%g3] ASI_PHYS_USE_EC - stx %g3, [%g6] - wr %g0, 1 << PIL_DEVICE_IRQ, %set_softint - retry -do_ivec_xcall: - mov 0x50, %g1 - ldxa [%g1 + %g0] ASI_INTR_R, %g1 - srl %g3, 0, %g3 - - mov 0x60, %g7 - ldxa [%g7 + %g0] ASI_INTR_R, %g7 - stxa %g0, [%g0] ASI_INTR_RECEIVE - membar #Sync - ba,pt %xcc, 1f - nop - - .align 32 -1: jmpl %g3, %g0 - nop - .size do_ivec,.-do_ivec diff --git a/arch/sparc64/kernel/kgdb.c b/arch/sparc64/kernel/kgdb.c deleted file mode 100644 index fefbe6dc51be..000000000000 --- a/arch/sparc64/kernel/kgdb.c +++ /dev/null @@ -1,186 +0,0 @@ -/* kgdb.c: KGDB support for 64-bit sparc. - * - * Copyright (C) 2008 David S. Miller <davem@davemloft.net> - */ - -#include <linux/kgdb.h> -#include <linux/kdebug.h> - -#include <asm/kdebug.h> -#include <asm/ptrace.h> -#include <asm/irq.h> - -void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs) -{ - struct reg_window *win; - int i; - - gdb_regs[GDB_G0] = 0; - for (i = 0; i < 15; i++) - gdb_regs[GDB_G1 + i] = regs->u_regs[UREG_G1 + i]; - - win = (struct reg_window *) (regs->u_regs[UREG_FP] + STACK_BIAS); - for (i = 0; i < 8; i++) - gdb_regs[GDB_L0 + i] = win->locals[i]; - for (i = 0; i < 8; i++) - gdb_regs[GDB_I0 + i] = win->ins[i]; - - for (i = GDB_F0; i <= GDB_F62; i++) - gdb_regs[i] = 0; - - gdb_regs[GDB_PC] = regs->tpc; - gdb_regs[GDB_NPC] = regs->tnpc; - gdb_regs[GDB_STATE] = regs->tstate; - gdb_regs[GDB_FSR] = 0; - gdb_regs[GDB_FPRS] = 0; - gdb_regs[GDB_Y] = regs->y; -} - -void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p) -{ - struct thread_info *t = task_thread_info(p); - extern unsigned int switch_to_pc; - extern unsigned int ret_from_syscall; - struct reg_window *win; - unsigned long pc, cwp; - int i; - - for (i = GDB_G0; i < GDB_G6; i++) - gdb_regs[i] = 0; - gdb_regs[GDB_G6] = (unsigned long) t; - gdb_regs[GDB_G7] = (unsigned long) p; - for (i = GDB_O0; i < GDB_SP; i++) - gdb_regs[i] = 0; - gdb_regs[GDB_SP] = t->ksp; - gdb_regs[GDB_O7] = 0; - - win = (struct reg_window *) (t->ksp + STACK_BIAS); - for (i = 0; i < 8; i++) - gdb_regs[GDB_L0 + i] = win->locals[i]; - for (i = 0; i < 8; i++) - gdb_regs[GDB_I0 + i] = win->ins[i]; - - for (i = GDB_F0; i <= GDB_F62; i++) - gdb_regs[i] = 0; - - if (t->new_child) - pc = (unsigned long) &ret_from_syscall; - else - pc = (unsigned long) &switch_to_pc; - - gdb_regs[GDB_PC] = pc; - gdb_regs[GDB_NPC] = pc + 4; - - cwp = __thread_flag_byte_ptr(t)[TI_FLAG_BYTE_CWP]; - - gdb_regs[GDB_STATE] = (TSTATE_PRIV | TSTATE_IE | cwp); - gdb_regs[GDB_FSR] = 0; - gdb_regs[GDB_FPRS] = 0; - gdb_regs[GDB_Y] = 0; -} - -void gdb_regs_to_pt_regs(unsigned long *gdb_regs, struct pt_regs *regs) -{ - struct reg_window *win; - int i; - - for (i = 0; i < 15; i++) - regs->u_regs[UREG_G1 + i] = gdb_regs[GDB_G1 + i]; - - /* If the TSTATE register is changing, we have to preserve - * the CWP field, otherwise window save/restore explodes. - */ - if (regs->tstate != gdb_regs[GDB_STATE]) { - unsigned long cwp = regs->tstate & TSTATE_CWP; - - regs->tstate = (gdb_regs[GDB_STATE] & ~TSTATE_CWP) | cwp; - } - - regs->tpc = gdb_regs[GDB_PC]; - regs->tnpc = gdb_regs[GDB_NPC]; - regs->y = gdb_regs[GDB_Y]; - - win = (struct reg_window *) (regs->u_regs[UREG_FP] + STACK_BIAS); - for (i = 0; i < 8; i++) - win->locals[i] = gdb_regs[GDB_L0 + i]; - for (i = 0; i < 8; i++) - win->ins[i] = gdb_regs[GDB_I0 + i]; -} - -#ifdef CONFIG_SMP -void smp_kgdb_capture_client(struct pt_regs *regs) -{ - unsigned long flags; - - __asm__ __volatile__("rdpr %%pstate, %0\n\t" - "wrpr %0, %1, %%pstate" - : "=r" (flags) - : "i" (PSTATE_IE)); - - flushw_all(); - - if (atomic_read(&kgdb_active) != -1) - kgdb_nmicallback(raw_smp_processor_id(), regs); - - __asm__ __volatile__("wrpr %0, 0, %%pstate" - : : "r" (flags)); -} -#endif - -int kgdb_arch_handle_exception(int e_vector, int signo, int err_code, - char *remcomInBuffer, char *remcomOutBuffer, - struct pt_regs *linux_regs) -{ - unsigned long addr; - char *ptr; - - switch (remcomInBuffer[0]) { - case 'c': - /* try to read optional parameter, pc unchanged if no parm */ - ptr = &remcomInBuffer[1]; - if (kgdb_hex2long(&ptr, &addr)) { - linux_regs->tpc = addr; - linux_regs->tnpc = addr + 4; - } - /* fallthru */ - - case 'D': - case 'k': - if (linux_regs->tpc == (unsigned long) arch_kgdb_breakpoint) { - linux_regs->tpc = linux_regs->tnpc; - linux_regs->tnpc += 4; - } - return 0; - } - return -1; -} - -asmlinkage void kgdb_trap(unsigned long trap_level, struct pt_regs *regs) -{ - unsigned long flags; - - if (user_mode(regs)) { - bad_trap(regs, trap_level); - return; - } - - flushw_all(); - - local_irq_save(flags); - kgdb_handle_exception(0x172, SIGTRAP, 0, regs); - local_irq_restore(flags); -} - -int kgdb_arch_init(void) -{ - return 0; -} - -void kgdb_arch_exit(void) -{ -} - -struct kgdb_arch arch_kgdb_ops = { - /* Breakpoint instruction: ta 0x72 */ - .gdb_bpt_instr = { 0x91, 0xd0, 0x20, 0x72 }, -}; diff --git a/arch/sparc64/kernel/kprobes.c b/arch/sparc64/kernel/kprobes.c deleted file mode 100644 index 201a6e547e4a..000000000000 --- a/arch/sparc64/kernel/kprobes.c +++ /dev/null @@ -1,593 +0,0 @@ -/* arch/sparc64/kernel/kprobes.c - * - * Copyright (C) 2004 David S. Miller <davem@davemloft.net> - */ - -#include <linux/kernel.h> -#include <linux/kprobes.h> -#include <linux/module.h> -#include <linux/kdebug.h> -#include <asm/signal.h> -#include <asm/cacheflush.h> -#include <asm/uaccess.h> - -/* We do not have hardware single-stepping on sparc64. - * So we implement software single-stepping with breakpoint - * traps. The top-level scheme is similar to that used - * in the x86 kprobes implementation. - * - * In the kprobe->ainsn.insn[] array we store the original - * instruction at index zero and a break instruction at - * index one. - * - * When we hit a kprobe we: - * - Run the pre-handler - * - Remember "regs->tnpc" and interrupt level stored in - * "regs->tstate" so we can restore them later - * - Disable PIL interrupts - * - Set regs->tpc to point to kprobe->ainsn.insn[0] - * - Set regs->tnpc to point to kprobe->ainsn.insn[1] - * - Mark that we are actively in a kprobe - * - * At this point we wait for the second breakpoint at - * kprobe->ainsn.insn[1] to hit. When it does we: - * - Run the post-handler - * - Set regs->tpc to "remembered" regs->tnpc stored above, - * restore the PIL interrupt level in "regs->tstate" as well - * - Make any adjustments necessary to regs->tnpc in order - * to handle relative branches correctly. See below. - * - Mark that we are no longer actively in a kprobe. - */ - -DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL; -DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); - -struct kretprobe_blackpoint kretprobe_blacklist[] = {{NULL, NULL}}; - -int __kprobes arch_prepare_kprobe(struct kprobe *p) -{ - p->ainsn.insn[0] = *p->addr; - flushi(&p->ainsn.insn[0]); - - p->ainsn.insn[1] = BREAKPOINT_INSTRUCTION_2; - flushi(&p->ainsn.insn[1]); - - p->opcode = *p->addr; - return 0; -} - -void __kprobes arch_arm_kprobe(struct kprobe *p) -{ - *p->addr = BREAKPOINT_INSTRUCTION; - flushi(p->addr); -} - -void __kprobes arch_disarm_kprobe(struct kprobe *p) -{ - *p->addr = p->opcode; - flushi(p->addr); -} - -static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb) -{ - kcb->prev_kprobe.kp = kprobe_running(); - kcb->prev_kprobe.status = kcb->kprobe_status; - kcb->prev_kprobe.orig_tnpc = kcb->kprobe_orig_tnpc; - kcb->prev_kprobe.orig_tstate_pil = kcb->kprobe_orig_tstate_pil; -} - -static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb) -{ - __get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp; - kcb->kprobe_status = kcb->prev_kprobe.status; - kcb->kprobe_orig_tnpc = kcb->prev_kprobe.orig_tnpc; - kcb->kprobe_orig_tstate_pil = kcb->prev_kprobe.orig_tstate_pil; -} - -static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs, - struct kprobe_ctlblk *kcb) -{ - __get_cpu_var(current_kprobe) = p; - kcb->kprobe_orig_tnpc = regs->tnpc; - kcb->kprobe_orig_tstate_pil = (regs->tstate & TSTATE_PIL); -} - -static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs, - struct kprobe_ctlblk *kcb) -{ - regs->tstate |= TSTATE_PIL; - - /*single step inline, if it a breakpoint instruction*/ - if (p->opcode == BREAKPOINT_INSTRUCTION) { - regs->tpc = (unsigned long) p->addr; - regs->tnpc = kcb->kprobe_orig_tnpc; - } else { - regs->tpc = (unsigned long) &p->ainsn.insn[0]; - regs->tnpc = (unsigned long) &p->ainsn.insn[1]; - } -} - -static int __kprobes kprobe_handler(struct pt_regs *regs) -{ - struct kprobe *p; - void *addr = (void *) regs->tpc; - int ret = 0; - struct kprobe_ctlblk *kcb; - - /* - * We don't want to be preempted for the entire - * duration of kprobe processing - */ - preempt_disable(); - kcb = get_kprobe_ctlblk(); - - if (kprobe_running()) { - p = get_kprobe(addr); - if (p) { - if (kcb->kprobe_status == KPROBE_HIT_SS) { - regs->tstate = ((regs->tstate & ~TSTATE_PIL) | - kcb->kprobe_orig_tstate_pil); - goto no_kprobe; - } - /* We have reentered the kprobe_handler(), since - * another probe was hit while within the handler. - * We here save the original kprobes variables and - * just single step on the instruction of the new probe - * without calling any user handlers. - */ - save_previous_kprobe(kcb); - set_current_kprobe(p, regs, kcb); - kprobes_inc_nmissed_count(p); - kcb->kprobe_status = KPROBE_REENTER; - prepare_singlestep(p, regs, kcb); - return 1; - } else { - if (*(u32 *)addr != BREAKPOINT_INSTRUCTION) { - /* The breakpoint instruction was removed by - * another cpu right after we hit, no further - * handling of this interrupt is appropriate - */ - ret = 1; - goto no_kprobe; - } - p = __get_cpu_var(current_kprobe); - if (p->break_handler && p->break_handler(p, regs)) - goto ss_probe; - } - goto no_kprobe; - } - - p = get_kprobe(addr); - if (!p) { - if (*(u32 *)addr != BREAKPOINT_INSTRUCTION) { - /* - * The breakpoint instruction was removed right - * after we hit it. Another cpu has removed - * either a probepoint or a debugger breakpoint - * at this address. In either case, no further - * handling of this interrupt is appropriate. - */ - ret = 1; - } - /* Not one of ours: let kernel handle it */ - goto no_kprobe; - } - - set_current_kprobe(p, regs, kcb); - kcb->kprobe_status = KPROBE_HIT_ACTIVE; - if (p->pre_handler && p->pre_handler(p, regs)) - return 1; - -ss_probe: - prepare_singlestep(p, regs, kcb); - kcb->kprobe_status = KPROBE_HIT_SS; - return 1; - -no_kprobe: - preempt_enable_no_resched(); - return ret; -} - -/* If INSN is a relative control transfer instruction, - * return the corrected branch destination value. - * - * regs->tpc and regs->tnpc still hold the values of the - * program counters at the time of trap due to the execution - * of the BREAKPOINT_INSTRUCTION_2 at p->ainsn.insn[1] - * - */ -static unsigned long __kprobes relbranch_fixup(u32 insn, struct kprobe *p, - struct pt_regs *regs) -{ - unsigned long real_pc = (unsigned long) p->addr; - - /* Branch not taken, no mods necessary. */ - if (regs->tnpc == regs->tpc + 0x4UL) - return real_pc + 0x8UL; - - /* The three cases are call, branch w/prediction, - * and traditional branch. - */ - if ((insn & 0xc0000000) == 0x40000000 || - (insn & 0xc1c00000) == 0x00400000 || - (insn & 0xc1c00000) == 0x00800000) { - unsigned long ainsn_addr; - - ainsn_addr = (unsigned long) &p->ainsn.insn[0]; - - /* The instruction did all the work for us - * already, just apply the offset to the correct - * instruction location. - */ - return (real_pc + (regs->tnpc - ainsn_addr)); - } - - /* It is jmpl or some other absolute PC modification instruction, - * leave NPC as-is. - */ - return regs->tnpc; -} - -/* If INSN is an instruction which writes it's PC location - * into a destination register, fix that up. - */ -static void __kprobes retpc_fixup(struct pt_regs *regs, u32 insn, - unsigned long real_pc) -{ - unsigned long *slot = NULL; - - /* Simplest case is 'call', which always uses %o7 */ - if ((insn & 0xc0000000) == 0x40000000) { - slot = ®s->u_regs[UREG_I7]; - } - - /* 'jmpl' encodes the register inside of the opcode */ - if ((insn & 0xc1f80000) == 0x81c00000) { - unsigned long rd = ((insn >> 25) & 0x1f); - - if (rd <= 15) { - slot = ®s->u_regs[rd]; - } else { - /* Hard case, it goes onto the stack. */ - flushw_all(); - - rd -= 16; - slot = (unsigned long *) - (regs->u_regs[UREG_FP] + STACK_BIAS); - slot += rd; - } - } - if (slot != NULL) - *slot = real_pc; -} - -/* - * Called after single-stepping. p->addr is the address of the - * instruction which has been replaced by the breakpoint - * instruction. To avoid the SMP problems that can occur when we - * temporarily put back the original opcode to single-step, we - * single-stepped a copy of the instruction. The address of this - * copy is &p->ainsn.insn[0]. - * - * This function prepares to return from the post-single-step - * breakpoint trap. - */ -static void __kprobes resume_execution(struct kprobe *p, - struct pt_regs *regs, struct kprobe_ctlblk *kcb) -{ - u32 insn = p->ainsn.insn[0]; - - regs->tnpc = relbranch_fixup(insn, p, regs); - - /* This assignment must occur after relbranch_fixup() */ - regs->tpc = kcb->kprobe_orig_tnpc; - - retpc_fixup(regs, insn, (unsigned long) p->addr); - - regs->tstate = ((regs->tstate & ~TSTATE_PIL) | - kcb->kprobe_orig_tstate_pil); -} - -static int __kprobes post_kprobe_handler(struct pt_regs *regs) -{ - struct kprobe *cur = kprobe_running(); - struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); - - if (!cur) - return 0; - - if ((kcb->kprobe_status != KPROBE_REENTER) && cur->post_handler) { - kcb->kprobe_status = KPROBE_HIT_SSDONE; - cur->post_handler(cur, regs, 0); - } - - resume_execution(cur, regs, kcb); - - /*Restore back the original saved kprobes variables and continue. */ - if (kcb->kprobe_status == KPROBE_REENTER) { - restore_previous_kprobe(kcb); - goto out; - } - reset_current_kprobe(); -out: - preempt_enable_no_resched(); - - return 1; -} - -int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) -{ - struct kprobe *cur = kprobe_running(); - struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); - const struct exception_table_entry *entry; - - switch(kcb->kprobe_status) { - case KPROBE_HIT_SS: - case KPROBE_REENTER: - /* - * We are here because the instruction being single - * stepped caused a page fault. We reset the current - * kprobe and the tpc points back to the probe address - * and allow the page fault handler to continue as a - * normal page fault. - */ - regs->tpc = (unsigned long)cur->addr; - regs->tnpc = kcb->kprobe_orig_tnpc; - regs->tstate = ((regs->tstate & ~TSTATE_PIL) | - kcb->kprobe_orig_tstate_pil); - if (kcb->kprobe_status == KPROBE_REENTER) - restore_previous_kprobe(kcb); - else - reset_current_kprobe(); - preempt_enable_no_resched(); - break; - case KPROBE_HIT_ACTIVE: - case KPROBE_HIT_SSDONE: - /* - * We increment the nmissed count for accounting, - * we can also use npre/npostfault count for accouting - * these specific fault cases. - */ - kprobes_inc_nmissed_count(cur); - - /* - * We come here because instructions in the pre/post - * handler caused the page_fault, this could happen - * if handler tries to access user space by - * copy_from_user(), get_user() etc. Let the - * user-specified handler try to fix it first. - */ - if (cur->fault_handler && cur->fault_handler(cur, regs, trapnr)) - return 1; - - /* - * In case the user-specified fault handler returned - * zero, try to fix up. - */ - - entry = search_exception_tables(regs->tpc); - if (entry) { - regs->tpc = entry->fixup; - regs->tnpc = regs->tpc + 4; - return 1; - } - - /* - * fixup_exception() could not handle it, - * Let do_page_fault() fix it. - */ - break; - default: - break; - } - - return 0; -} - -/* - * Wrapper routine to for handling exceptions. - */ -int __kprobes kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data) -{ - struct die_args *args = (struct die_args *)data; - int ret = NOTIFY_DONE; - - if (args->regs && user_mode(args->regs)) - return ret; - - switch (val) { - case DIE_DEBUG: - if (kprobe_handler(args->regs)) - ret = NOTIFY_STOP; - break; - case DIE_DEBUG_2: - if (post_kprobe_handler(args->regs)) - ret = NOTIFY_STOP; - break; - default: - break; - } - return ret; -} - -asmlinkage void __kprobes kprobe_trap(unsigned long trap_level, - struct pt_regs *regs) -{ - BUG_ON(trap_level != 0x170 && trap_level != 0x171); - - if (user_mode(regs)) { - local_irq_enable(); - bad_trap(regs, trap_level); - return; - } - - /* trap_level == 0x170 --> ta 0x70 - * trap_level == 0x171 --> ta 0x71 - */ - if (notify_die((trap_level == 0x170) ? DIE_DEBUG : DIE_DEBUG_2, - (trap_level == 0x170) ? "debug" : "debug_2", - regs, 0, trap_level, SIGTRAP) != NOTIFY_STOP) - bad_trap(regs, trap_level); -} - -/* Jprobes support. */ -int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) -{ - struct jprobe *jp = container_of(p, struct jprobe, kp); - struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); - - memcpy(&(kcb->jprobe_saved_regs), regs, sizeof(*regs)); - - regs->tpc = (unsigned long) jp->entry; - regs->tnpc = ((unsigned long) jp->entry) + 0x4UL; - regs->tstate |= TSTATE_PIL; - - return 1; -} - -void __kprobes jprobe_return(void) -{ - struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); - register unsigned long orig_fp asm("g1"); - - orig_fp = kcb->jprobe_saved_regs.u_regs[UREG_FP]; - __asm__ __volatile__("\n" -"1: cmp %%sp, %0\n\t" - "blu,a,pt %%xcc, 1b\n\t" - " restore\n\t" - ".globl jprobe_return_trap_instruction\n" -"jprobe_return_trap_instruction:\n\t" - "ta 0x70" - : /* no outputs */ - : "r" (orig_fp)); -} - -extern void jprobe_return_trap_instruction(void); - -int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) -{ - u32 *addr = (u32 *) regs->tpc; - struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); - - if (addr == (u32 *) jprobe_return_trap_instruction) { - memcpy(regs, &(kcb->jprobe_saved_regs), sizeof(*regs)); - preempt_enable_no_resched(); - return 1; - } - return 0; -} - -/* The value stored in the return address register is actually 2 - * instructions before where the callee will return to. - * Sequences usually look something like this - * - * call some_function <--- return register points here - * nop <--- call delay slot - * whatever <--- where callee returns to - * - * To keep trampoline_probe_handler logic simpler, we normalize the - * value kept in ri->ret_addr so we don't need to keep adjusting it - * back and forth. - */ -void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri, - struct pt_regs *regs) -{ - ri->ret_addr = (kprobe_opcode_t *)(regs->u_regs[UREG_RETPC] + 8); - - /* Replace the return addr with trampoline addr */ - regs->u_regs[UREG_RETPC] = - ((unsigned long)kretprobe_trampoline) - 8; -} - -/* - * Called when the probe at kretprobe trampoline is hit - */ -int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs) -{ - struct kretprobe_instance *ri = NULL; - struct hlist_head *head, empty_rp; - struct hlist_node *node, *tmp; - unsigned long flags, orig_ret_address = 0; - unsigned long trampoline_address =(unsigned long)&kretprobe_trampoline; - - INIT_HLIST_HEAD(&empty_rp); - kretprobe_hash_lock(current, &head, &flags); - - /* - * It is possible to have multiple instances associated with a given - * task either because an multiple functions in the call path - * have a return probe installed on them, and/or more then one return - * return probe was registered for a target function. - * - * We can handle this because: - * - instances are always inserted at the head of the list - * - when multiple return probes are registered for the same - * function, the first instance's ret_addr will point to the - * real return address, and all the rest will point to - * kretprobe_trampoline - */ - hlist_for_each_entry_safe(ri, node, tmp, head, hlist) { - if (ri->task != current) - /* another task is sharing our hash bucket */ - continue; - - if (ri->rp && ri->rp->handler) - ri->rp->handler(ri, regs); - - orig_ret_address = (unsigned long)ri->ret_addr; - recycle_rp_inst(ri, &empty_rp); - - if (orig_ret_address != trampoline_address) - /* - * This is the real return address. Any other - * instances associated with this task are for - * other calls deeper on the call stack - */ - break; - } - - kretprobe_assert(ri, orig_ret_address, trampoline_address); - regs->tpc = orig_ret_address; - regs->tnpc = orig_ret_address + 4; - - reset_current_kprobe(); - kretprobe_hash_unlock(current, &flags); - preempt_enable_no_resched(); - - hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) { - hlist_del(&ri->hlist); - kfree(ri); - } - /* - * By returning a non-zero value, we are telling - * kprobe_handler() that we don't want the post_handler - * to run (and have re-enabled preemption) - */ - return 1; -} - -void kretprobe_trampoline_holder(void) -{ - asm volatile(".global kretprobe_trampoline\n" - "kretprobe_trampoline:\n" - "\tnop\n" - "\tnop\n"); -} -static struct kprobe trampoline_p = { - .addr = (kprobe_opcode_t *) &kretprobe_trampoline, - .pre_handler = trampoline_probe_handler -}; - -int __init arch_init_kprobes(void) -{ - return register_kprobe(&trampoline_p); -} - -int __kprobes arch_trampoline_kprobe(struct kprobe *p) -{ - if (p->addr == (kprobe_opcode_t *)&kretprobe_trampoline) - return 1; - - return 0; -} diff --git a/arch/sparc64/kernel/kstack.h b/arch/sparc64/kernel/kstack.h deleted file mode 100644 index 4248d969272f..000000000000 --- a/arch/sparc64/kernel/kstack.h +++ /dev/null @@ -1,60 +0,0 @@ -#ifndef _KSTACK_H -#define _KSTACK_H - -#include <linux/thread_info.h> -#include <linux/sched.h> -#include <asm/ptrace.h> -#include <asm/irq.h> - -/* SP must be STACK_BIAS adjusted already. */ -static inline bool kstack_valid(struct thread_info *tp, unsigned long sp) -{ - unsigned long base = (unsigned long) tp; - - if (sp >= (base + sizeof(struct thread_info)) && - sp <= (base + THREAD_SIZE - sizeof(struct sparc_stackf))) - return true; - - if (hardirq_stack[tp->cpu]) { - base = (unsigned long) hardirq_stack[tp->cpu]; - if (sp >= base && - sp <= (base + THREAD_SIZE - sizeof(struct sparc_stackf))) - return true; - base = (unsigned long) softirq_stack[tp->cpu]; - if (sp >= base && - sp <= (base + THREAD_SIZE - sizeof(struct sparc_stackf))) - return true; - } - return false; -} - -/* Does "regs" point to a valid pt_regs trap frame? */ -static inline bool kstack_is_trap_frame(struct thread_info *tp, struct pt_regs *regs) -{ - unsigned long base = (unsigned long) tp; - unsigned long addr = (unsigned long) regs; - - if (addr >= base && - addr <= (base + THREAD_SIZE - sizeof(*regs))) - goto check_magic; - - if (hardirq_stack[tp->cpu]) { - base = (unsigned long) hardirq_stack[tp->cpu]; - if (addr >= base && - addr <= (base + THREAD_SIZE - sizeof(*regs))) - goto check_magic; - base = (unsigned long) softirq_stack[tp->cpu]; - if (addr >= base && - addr <= (base + THREAD_SIZE - sizeof(*regs))) - goto check_magic; - } - return false; - -check_magic: - if ((regs->magic & ~0x1ff) == PT_REGS_MAGIC) - return true; - return false; - -} - -#endif /* _KSTACK_H */ diff --git a/arch/sparc64/kernel/ktlb.S b/arch/sparc64/kernel/ktlb.S deleted file mode 100644 index cef8defcd7a9..000000000000 --- a/arch/sparc64/kernel/ktlb.S +++ /dev/null @@ -1,304 +0,0 @@ -/* arch/sparc64/kernel/ktlb.S: Kernel mapping TLB miss handling. - * - * Copyright (C) 1995, 1997, 2005, 2008 David S. Miller <davem@davemloft.net> - * Copyright (C) 1996 Eddie C. Dost (ecd@brainaid.de) - * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) - * Copyright (C) 1996,98,99 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#include <asm/head.h> -#include <asm/asi.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/tsb.h> - - .text - .align 32 - -kvmap_itlb: - /* g6: TAG TARGET */ - mov TLB_TAG_ACCESS, %g4 - ldxa [%g4] ASI_IMMU, %g4 - - /* sun4v_itlb_miss branches here with the missing virtual - * address already loaded into %g4 - */ -kvmap_itlb_4v: - -kvmap_itlb_nonlinear: - /* Catch kernel NULL pointer calls. */ - sethi %hi(PAGE_SIZE), %g5 - cmp %g4, %g5 - bleu,pn %xcc, kvmap_dtlb_longpath - nop - - KERN_TSB_LOOKUP_TL1(%g4, %g6, %g5, %g1, %g2, %g3, kvmap_itlb_load) - -kvmap_itlb_tsb_miss: - sethi %hi(LOW_OBP_ADDRESS), %g5 - cmp %g4, %g5 - blu,pn %xcc, kvmap_itlb_vmalloc_addr - mov 0x1, %g5 - sllx %g5, 32, %g5 - cmp %g4, %g5 - blu,pn %xcc, kvmap_itlb_obp - nop - -kvmap_itlb_vmalloc_addr: - KERN_PGTABLE_WALK(%g4, %g5, %g2, kvmap_itlb_longpath) - - KTSB_LOCK_TAG(%g1, %g2, %g7) - - /* Load and check PTE. */ - ldxa [%g5] ASI_PHYS_USE_EC, %g5 - mov 1, %g7 - sllx %g7, TSB_TAG_INVALID_BIT, %g7 - brgez,a,pn %g5, kvmap_itlb_longpath - KTSB_STORE(%g1, %g7) - - KTSB_WRITE(%g1, %g5, %g6) - - /* fallthrough to TLB load */ - -kvmap_itlb_load: - -661: stxa %g5, [%g0] ASI_ITLB_DATA_IN - retry - .section .sun4v_2insn_patch, "ax" - .word 661b - nop - nop - .previous - - /* For sun4v the ASI_ITLB_DATA_IN store and the retry - * instruction get nop'd out and we get here to branch - * to the sun4v tlb load code. The registers are setup - * as follows: - * - * %g4: vaddr - * %g5: PTE - * %g6: TAG - * - * The sun4v TLB load wants the PTE in %g3 so we fix that - * up here. - */ - ba,pt %xcc, sun4v_itlb_load - mov %g5, %g3 - -kvmap_itlb_longpath: - -661: rdpr %pstate, %g5 - wrpr %g5, PSTATE_AG | PSTATE_MG, %pstate - .section .sun4v_2insn_patch, "ax" - .word 661b - SET_GL(1) - nop - .previous - - rdpr %tpc, %g5 - ba,pt %xcc, sparc64_realfault_common - mov FAULT_CODE_ITLB, %g4 - -kvmap_itlb_obp: - OBP_TRANS_LOOKUP(%g4, %g5, %g2, %g3, kvmap_itlb_longpath) - - KTSB_LOCK_TAG(%g1, %g2, %g7) - - KTSB_WRITE(%g1, %g5, %g6) - - ba,pt %xcc, kvmap_itlb_load - nop - -kvmap_dtlb_obp: - OBP_TRANS_LOOKUP(%g4, %g5, %g2, %g3, kvmap_dtlb_longpath) - - KTSB_LOCK_TAG(%g1, %g2, %g7) - - KTSB_WRITE(%g1, %g5, %g6) - - ba,pt %xcc, kvmap_dtlb_load - nop - - .align 32 -kvmap_dtlb_tsb4m_load: - KTSB_LOCK_TAG(%g1, %g2, %g7) - KTSB_WRITE(%g1, %g5, %g6) - ba,pt %xcc, kvmap_dtlb_load - nop - -kvmap_dtlb: - /* %g6: TAG TARGET */ - mov TLB_TAG_ACCESS, %g4 - ldxa [%g4] ASI_DMMU, %g4 - - /* sun4v_dtlb_miss branches here with the missing virtual - * address already loaded into %g4 - */ -kvmap_dtlb_4v: - brgez,pn %g4, kvmap_dtlb_nonlinear - nop - -#ifdef CONFIG_DEBUG_PAGEALLOC - /* Index through the base page size TSB even for linear - * mappings when using page allocation debugging. - */ - KERN_TSB_LOOKUP_TL1(%g4, %g6, %g5, %g1, %g2, %g3, kvmap_dtlb_load) -#else - /* Correct TAG_TARGET is already in %g6, check 4mb TSB. */ - KERN_TSB4M_LOOKUP_TL1(%g6, %g5, %g1, %g2, %g3, kvmap_dtlb_load) -#endif - /* TSB entry address left in %g1, lookup linear PTE. - * Must preserve %g1 and %g6 (TAG). - */ -kvmap_dtlb_tsb4m_miss: - sethi %hi(kpte_linear_bitmap), %g2 - or %g2, %lo(kpte_linear_bitmap), %g2 - - /* Clear the PAGE_OFFSET top virtual bits, then shift - * down to get a 256MB physical address index. - */ - sllx %g4, 21, %g5 - mov 1, %g7 - srlx %g5, 21 + 28, %g5 - - /* Don't try this at home kids... this depends upon srlx - * only taking the low 6 bits of the shift count in %g5. - */ - sllx %g7, %g5, %g7 - - /* Divide by 64 to get the offset into the bitmask. */ - srlx %g5, 6, %g5 - sllx %g5, 3, %g5 - - /* kern_linear_pte_xor[((mask & bit) ? 1 : 0)] */ - ldx [%g2 + %g5], %g2 - andcc %g2, %g7, %g0 - sethi %hi(kern_linear_pte_xor), %g5 - or %g5, %lo(kern_linear_pte_xor), %g5 - bne,a,pt %xcc, 1f - add %g5, 8, %g5 - -1: ldx [%g5], %g2 - - .globl kvmap_linear_patch -kvmap_linear_patch: - ba,pt %xcc, kvmap_dtlb_tsb4m_load - xor %g2, %g4, %g5 - -kvmap_dtlb_vmalloc_addr: - KERN_PGTABLE_WALK(%g4, %g5, %g2, kvmap_dtlb_longpath) - - KTSB_LOCK_TAG(%g1, %g2, %g7) - - /* Load and check PTE. */ - ldxa [%g5] ASI_PHYS_USE_EC, %g5 - mov 1, %g7 - sllx %g7, TSB_TAG_INVALID_BIT, %g7 - brgez,a,pn %g5, kvmap_dtlb_longpath - KTSB_STORE(%g1, %g7) - - KTSB_WRITE(%g1, %g5, %g6) - - /* fallthrough to TLB load */ - -kvmap_dtlb_load: - -661: stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Reload TLB - retry - .section .sun4v_2insn_patch, "ax" - .word 661b - nop - nop - .previous - - /* For sun4v the ASI_DTLB_DATA_IN store and the retry - * instruction get nop'd out and we get here to branch - * to the sun4v tlb load code. The registers are setup - * as follows: - * - * %g4: vaddr - * %g5: PTE - * %g6: TAG - * - * The sun4v TLB load wants the PTE in %g3 so we fix that - * up here. - */ - ba,pt %xcc, sun4v_dtlb_load - mov %g5, %g3 - -#ifdef CONFIG_SPARSEMEM_VMEMMAP -kvmap_vmemmap: - sub %g4, %g5, %g5 - srlx %g5, 22, %g5 - sethi %hi(vmemmap_table), %g1 - sllx %g5, 3, %g5 - or %g1, %lo(vmemmap_table), %g1 - ba,pt %xcc, kvmap_dtlb_load - ldx [%g1 + %g5], %g5 -#endif - -kvmap_dtlb_nonlinear: - /* Catch kernel NULL pointer derefs. */ - sethi %hi(PAGE_SIZE), %g5 - cmp %g4, %g5 - bleu,pn %xcc, kvmap_dtlb_longpath - nop - -#ifdef CONFIG_SPARSEMEM_VMEMMAP - /* Do not use the TSB for vmemmap. */ - mov (VMEMMAP_BASE >> 24), %g5 - sllx %g5, 24, %g5 - cmp %g4,%g5 - bgeu,pn %xcc, kvmap_vmemmap - nop -#endif - - KERN_TSB_LOOKUP_TL1(%g4, %g6, %g5, %g1, %g2, %g3, kvmap_dtlb_load) - -kvmap_dtlb_tsbmiss: - sethi %hi(MODULES_VADDR), %g5 - cmp %g4, %g5 - blu,pn %xcc, kvmap_dtlb_longpath - mov (VMALLOC_END >> 24), %g5 - sllx %g5, 24, %g5 - cmp %g4, %g5 - bgeu,pn %xcc, kvmap_dtlb_longpath - nop - -kvmap_check_obp: - sethi %hi(LOW_OBP_ADDRESS), %g5 - cmp %g4, %g5 - blu,pn %xcc, kvmap_dtlb_vmalloc_addr - mov 0x1, %g5 - sllx %g5, 32, %g5 - cmp %g4, %g5 - blu,pn %xcc, kvmap_dtlb_obp - nop - ba,pt %xcc, kvmap_dtlb_vmalloc_addr - nop - -kvmap_dtlb_longpath: - -661: rdpr %pstate, %g5 - wrpr %g5, PSTATE_AG | PSTATE_MG, %pstate - .section .sun4v_2insn_patch, "ax" - .word 661b - SET_GL(1) - ldxa [%g0] ASI_SCRATCHPAD, %g5 - .previous - - rdpr %tl, %g3 - cmp %g3, 1 - -661: mov TLB_TAG_ACCESS, %g4 - ldxa [%g4] ASI_DMMU, %g5 - .section .sun4v_2insn_patch, "ax" - .word 661b - ldx [%g5 + HV_FAULT_D_ADDR_OFFSET], %g5 - nop - .previous - - be,pt %xcc, sparc64_realfault_common - mov FAULT_CODE_DTLB, %g4 - ba,pt %xcc, winfix_trampoline - nop diff --git a/arch/sparc64/kernel/ldc.c b/arch/sparc64/kernel/ldc.c deleted file mode 100644 index d68982330f66..000000000000 --- a/arch/sparc64/kernel/ldc.c +++ /dev/null @@ -1,2378 +0,0 @@ -/* ldc.c: Logical Domain Channel link-layer protocol driver. - * - * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net> - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/spinlock.h> -#include <linux/delay.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/scatterlist.h> -#include <linux/interrupt.h> -#include <linux/list.h> -#include <linux/init.h> - -#include <asm/hypervisor.h> -#include <asm/iommu.h> -#include <asm/page.h> -#include <asm/ldc.h> -#include <asm/mdesc.h> - -#define DRV_MODULE_NAME "ldc" -#define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "1.1" -#define DRV_MODULE_RELDATE "July 22, 2008" - -static char version[] __devinitdata = - DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; -#define LDC_PACKET_SIZE 64 - -/* Packet header layout for unreliable and reliable mode frames. - * When in RAW mode, packets are simply straight 64-byte payloads - * with no headers. - */ -struct ldc_packet { - u8 type; -#define LDC_CTRL 0x01 -#define LDC_DATA 0x02 -#define LDC_ERR 0x10 - - u8 stype; -#define LDC_INFO 0x01 -#define LDC_ACK 0x02 -#define LDC_NACK 0x04 - - u8 ctrl; -#define LDC_VERS 0x01 /* Link Version */ -#define LDC_RTS 0x02 /* Request To Send */ -#define LDC_RTR 0x03 /* Ready To Receive */ -#define LDC_RDX 0x04 /* Ready for Data eXchange */ -#define LDC_CTRL_MSK 0x0f - - u8 env; -#define LDC_LEN 0x3f -#define LDC_FRAG_MASK 0xc0 -#define LDC_START 0x40 -#define LDC_STOP 0x80 - - u32 seqid; - - union { - u8 u_data[LDC_PACKET_SIZE - 8]; - struct { - u32 pad; - u32 ackid; - u8 r_data[LDC_PACKET_SIZE - 8 - 8]; - } r; - } u; -}; - -struct ldc_version { - u16 major; - u16 minor; -}; - -/* Ordered from largest major to lowest. */ -static struct ldc_version ver_arr[] = { - { .major = 1, .minor = 0 }, -}; - -#define LDC_DEFAULT_MTU (4 * LDC_PACKET_SIZE) -#define LDC_DEFAULT_NUM_ENTRIES (PAGE_SIZE / LDC_PACKET_SIZE) - -struct ldc_channel; - -struct ldc_mode_ops { - int (*write)(struct ldc_channel *, const void *, unsigned int); - int (*read)(struct ldc_channel *, void *, unsigned int); -}; - -static const struct ldc_mode_ops raw_ops; -static const struct ldc_mode_ops nonraw_ops; -static const struct ldc_mode_ops stream_ops; - -int ldom_domaining_enabled; - -struct ldc_iommu { - /* Protects arena alloc/free. */ - spinlock_t lock; - struct iommu_arena arena; - struct ldc_mtable_entry *page_table; -}; - -struct ldc_channel { - /* Protects all operations that depend upon channel state. */ - spinlock_t lock; - - unsigned long id; - - u8 *mssbuf; - u32 mssbuf_len; - u32 mssbuf_off; - - struct ldc_packet *tx_base; - unsigned long tx_head; - unsigned long tx_tail; - unsigned long tx_num_entries; - unsigned long tx_ra; - - unsigned long tx_acked; - - struct ldc_packet *rx_base; - unsigned long rx_head; - unsigned long rx_tail; - unsigned long rx_num_entries; - unsigned long rx_ra; - - u32 rcv_nxt; - u32 snd_nxt; - - unsigned long chan_state; - - struct ldc_channel_config cfg; - void *event_arg; - - const struct ldc_mode_ops *mops; - - struct ldc_iommu iommu; - - struct ldc_version ver; - - u8 hs_state; -#define LDC_HS_CLOSED 0x00 -#define LDC_HS_OPEN 0x01 -#define LDC_HS_GOTVERS 0x02 -#define LDC_HS_SENTRTR 0x03 -#define LDC_HS_GOTRTR 0x04 -#define LDC_HS_COMPLETE 0x10 - - u8 flags; -#define LDC_FLAG_ALLOCED_QUEUES 0x01 -#define LDC_FLAG_REGISTERED_QUEUES 0x02 -#define LDC_FLAG_REGISTERED_IRQS 0x04 -#define LDC_FLAG_RESET 0x10 - - u8 mss; - u8 state; - -#define LDC_IRQ_NAME_MAX 32 - char rx_irq_name[LDC_IRQ_NAME_MAX]; - char tx_irq_name[LDC_IRQ_NAME_MAX]; - - struct hlist_head mh_list; - - struct hlist_node list; -}; - -#define ldcdbg(TYPE, f, a...) \ -do { if (lp->cfg.debug & LDC_DEBUG_##TYPE) \ - printk(KERN_INFO PFX "ID[%lu] " f, lp->id, ## a); \ -} while (0) - -static const char *state_to_str(u8 state) -{ - switch (state) { - case LDC_STATE_INVALID: - return "INVALID"; - case LDC_STATE_INIT: - return "INIT"; - case LDC_STATE_BOUND: - return "BOUND"; - case LDC_STATE_READY: - return "READY"; - case LDC_STATE_CONNECTED: - return "CONNECTED"; - default: - return "<UNKNOWN>"; - } -} - -static void ldc_set_state(struct ldc_channel *lp, u8 state) -{ - ldcdbg(STATE, "STATE (%s) --> (%s)\n", - state_to_str(lp->state), - state_to_str(state)); - - lp->state = state; -} - -static unsigned long __advance(unsigned long off, unsigned long num_entries) -{ - off += LDC_PACKET_SIZE; - if (off == (num_entries * LDC_PACKET_SIZE)) - off = 0; - - return off; -} - -static unsigned long rx_advance(struct ldc_channel *lp, unsigned long off) -{ - return __advance(off, lp->rx_num_entries); -} - -static unsigned long tx_advance(struct ldc_channel *lp, unsigned long off) -{ - return __advance(off, lp->tx_num_entries); -} - -static struct ldc_packet *handshake_get_tx_packet(struct ldc_channel *lp, - unsigned long *new_tail) -{ - struct ldc_packet *p; - unsigned long t; - - t = tx_advance(lp, lp->tx_tail); - if (t == lp->tx_head) - return NULL; - - *new_tail = t; - - p = lp->tx_base; - return p + (lp->tx_tail / LDC_PACKET_SIZE); -} - -/* When we are in reliable or stream mode, have to track the next packet - * we haven't gotten an ACK for in the TX queue using tx_acked. We have - * to be careful not to stomp over the queue past that point. During - * the handshake, we don't have TX data packets pending in the queue - * and that's why handshake_get_tx_packet() need not be mindful of - * lp->tx_acked. - */ -static unsigned long head_for_data(struct ldc_channel *lp) -{ - if (lp->cfg.mode == LDC_MODE_STREAM) - return lp->tx_acked; - return lp->tx_head; -} - -static int tx_has_space_for(struct ldc_channel *lp, unsigned int size) -{ - unsigned long limit, tail, new_tail, diff; - unsigned int mss; - - limit = head_for_data(lp); - tail = lp->tx_tail; - new_tail = tx_advance(lp, tail); - if (new_tail == limit) - return 0; - - if (limit > new_tail) - diff = limit - new_tail; - else - diff = (limit + - ((lp->tx_num_entries * LDC_PACKET_SIZE) - new_tail)); - diff /= LDC_PACKET_SIZE; - mss = lp->mss; - - if (diff * mss < size) - return 0; - - return 1; -} - -static struct ldc_packet *data_get_tx_packet(struct ldc_channel *lp, - unsigned long *new_tail) -{ - struct ldc_packet *p; - unsigned long h, t; - - h = head_for_data(lp); - t = tx_advance(lp, lp->tx_tail); - if (t == h) - return NULL; - - *new_tail = t; - - p = lp->tx_base; - return p + (lp->tx_tail / LDC_PACKET_SIZE); -} - -static int set_tx_tail(struct ldc_channel *lp, unsigned long tail) -{ - unsigned long orig_tail = lp->tx_tail; - int limit = 1000; - - lp->tx_tail = tail; - while (limit-- > 0) { - unsigned long err; - - err = sun4v_ldc_tx_set_qtail(lp->id, tail); - if (!err) - return 0; - - if (err != HV_EWOULDBLOCK) { - lp->tx_tail = orig_tail; - return -EINVAL; - } - udelay(1); - } - - lp->tx_tail = orig_tail; - return -EBUSY; -} - -/* This just updates the head value in the hypervisor using - * a polling loop with a timeout. The caller takes care of - * upating software state representing the head change, if any. - */ -static int __set_rx_head(struct ldc_channel *lp, unsigned long head) -{ - int limit = 1000; - - while (limit-- > 0) { - unsigned long err; - - err = sun4v_ldc_rx_set_qhead(lp->id, head); - if (!err) - return 0; - - if (err != HV_EWOULDBLOCK) - return -EINVAL; - - udelay(1); - } - - return -EBUSY; -} - -static int send_tx_packet(struct ldc_channel *lp, - struct ldc_packet *p, - unsigned long new_tail) -{ - BUG_ON(p != (lp->tx_base + (lp->tx_tail / LDC_PACKET_SIZE))); - - return set_tx_tail(lp, new_tail); -} - -static struct ldc_packet *handshake_compose_ctrl(struct ldc_channel *lp, - u8 stype, u8 ctrl, - void *data, int dlen, - unsigned long *new_tail) -{ - struct ldc_packet *p = handshake_get_tx_packet(lp, new_tail); - - if (p) { - memset(p, 0, sizeof(*p)); - p->type = LDC_CTRL; - p->stype = stype; - p->ctrl = ctrl; - if (data) - memcpy(p->u.u_data, data, dlen); - } - return p; -} - -static int start_handshake(struct ldc_channel *lp) -{ - struct ldc_packet *p; - struct ldc_version *ver; - unsigned long new_tail; - - ver = &ver_arr[0]; - - ldcdbg(HS, "SEND VER INFO maj[%u] min[%u]\n", - ver->major, ver->minor); - - p = handshake_compose_ctrl(lp, LDC_INFO, LDC_VERS, - ver, sizeof(*ver), &new_tail); - if (p) { - int err = send_tx_packet(lp, p, new_tail); - if (!err) - lp->flags &= ~LDC_FLAG_RESET; - return err; - } - return -EBUSY; -} - -static int send_version_nack(struct ldc_channel *lp, - u16 major, u16 minor) -{ - struct ldc_packet *p; - struct ldc_version ver; - unsigned long new_tail; - - ver.major = major; - ver.minor = minor; - - p = handshake_compose_ctrl(lp, LDC_NACK, LDC_VERS, - &ver, sizeof(ver), &new_tail); - if (p) { - ldcdbg(HS, "SEND VER NACK maj[%u] min[%u]\n", - ver.major, ver.minor); - - return send_tx_packet(lp, p, new_tail); - } - return -EBUSY; -} - -static int send_version_ack(struct ldc_channel *lp, - struct ldc_version *vp) -{ - struct ldc_packet *p; - unsigned long new_tail; - - p = handshake_compose_ctrl(lp, LDC_ACK, LDC_VERS, - vp, sizeof(*vp), &new_tail); - if (p) { - ldcdbg(HS, "SEND VER ACK maj[%u] min[%u]\n", - vp->major, vp->minor); - - return send_tx_packet(lp, p, new_tail); - } - return -EBUSY; -} - -static int send_rts(struct ldc_channel *lp) -{ - struct ldc_packet *p; - unsigned long new_tail; - - p = handshake_compose_ctrl(lp, LDC_INFO, LDC_RTS, NULL, 0, - &new_tail); - if (p) { - p->env = lp->cfg.mode; - p->seqid = 0; - lp->rcv_nxt = 0; - - ldcdbg(HS, "SEND RTS env[0x%x] seqid[0x%x]\n", - p->env, p->seqid); - - return send_tx_packet(lp, p, new_tail); - } - return -EBUSY; -} - -static int send_rtr(struct ldc_channel *lp) -{ - struct ldc_packet *p; - unsigned long new_tail; - - p = handshake_compose_ctrl(lp, LDC_INFO, LDC_RTR, NULL, 0, - &new_tail); - if (p) { - p->env = lp->cfg.mode; - p->seqid = 0; - - ldcdbg(HS, "SEND RTR env[0x%x] seqid[0x%x]\n", - p->env, p->seqid); - - return send_tx_packet(lp, p, new_tail); - } - return -EBUSY; -} - -static int send_rdx(struct ldc_channel *lp) -{ - struct ldc_packet *p; - unsigned long new_tail; - - p = handshake_compose_ctrl(lp, LDC_INFO, LDC_RDX, NULL, 0, - &new_tail); - if (p) { - p->env = 0; - p->seqid = ++lp->snd_nxt; - p->u.r.ackid = lp->rcv_nxt; - - ldcdbg(HS, "SEND RDX env[0x%x] seqid[0x%x] ackid[0x%x]\n", - p->env, p->seqid, p->u.r.ackid); - - return send_tx_packet(lp, p, new_tail); - } - return -EBUSY; -} - -static int send_data_nack(struct ldc_channel *lp, struct ldc_packet *data_pkt) -{ - struct ldc_packet *p; - unsigned long new_tail; - int err; - - p = data_get_tx_packet(lp, &new_tail); - if (!p) - return -EBUSY; - memset(p, 0, sizeof(*p)); - p->type = data_pkt->type; - p->stype = LDC_NACK; - p->ctrl = data_pkt->ctrl & LDC_CTRL_MSK; - p->seqid = lp->snd_nxt + 1; - p->u.r.ackid = lp->rcv_nxt; - - ldcdbg(HS, "SEND DATA NACK type[0x%x] ctl[0x%x] seq[0x%x] ack[0x%x]\n", - p->type, p->ctrl, p->seqid, p->u.r.ackid); - - err = send_tx_packet(lp, p, new_tail); - if (!err) - lp->snd_nxt++; - - return err; -} - -static int ldc_abort(struct ldc_channel *lp) -{ - unsigned long hv_err; - - ldcdbg(STATE, "ABORT\n"); - - /* We report but do not act upon the hypervisor errors because - * there really isn't much we can do if they fail at this point. - */ - hv_err = sun4v_ldc_tx_qconf(lp->id, lp->tx_ra, lp->tx_num_entries); - if (hv_err) - printk(KERN_ERR PFX "ldc_abort: " - "sun4v_ldc_tx_qconf(%lx,%lx,%lx) failed, err=%lu\n", - lp->id, lp->tx_ra, lp->tx_num_entries, hv_err); - - hv_err = sun4v_ldc_tx_get_state(lp->id, - &lp->tx_head, - &lp->tx_tail, - &lp->chan_state); - if (hv_err) - printk(KERN_ERR PFX "ldc_abort: " - "sun4v_ldc_tx_get_state(%lx,...) failed, err=%lu\n", - lp->id, hv_err); - - hv_err = sun4v_ldc_rx_qconf(lp->id, lp->rx_ra, lp->rx_num_entries); - if (hv_err) - printk(KERN_ERR PFX "ldc_abort: " - "sun4v_ldc_rx_qconf(%lx,%lx,%lx) failed, err=%lu\n", - lp->id, lp->rx_ra, lp->rx_num_entries, hv_err); - - /* Refetch the RX queue state as well, because we could be invoked - * here in the queue processing context. - */ - hv_err = sun4v_ldc_rx_get_state(lp->id, - &lp->rx_head, - &lp->rx_tail, - &lp->chan_state); - if (hv_err) - printk(KERN_ERR PFX "ldc_abort: " - "sun4v_ldc_rx_get_state(%lx,...) failed, err=%lu\n", - lp->id, hv_err); - - return -ECONNRESET; -} - -static struct ldc_version *find_by_major(u16 major) -{ - struct ldc_version *ret = NULL; - int i; - - for (i = 0; i < ARRAY_SIZE(ver_arr); i++) { - struct ldc_version *v = &ver_arr[i]; - if (v->major <= major) { - ret = v; - break; - } - } - return ret; -} - -static int process_ver_info(struct ldc_channel *lp, struct ldc_version *vp) -{ - struct ldc_version *vap; - int err; - - ldcdbg(HS, "GOT VERSION INFO major[%x] minor[%x]\n", - vp->major, vp->minor); - - if (lp->hs_state == LDC_HS_GOTVERS) { - lp->hs_state = LDC_HS_OPEN; - memset(&lp->ver, 0, sizeof(lp->ver)); - } - - vap = find_by_major(vp->major); - if (!vap) { - err = send_version_nack(lp, 0, 0); - } else if (vap->major != vp->major) { - err = send_version_nack(lp, vap->major, vap->minor); - } else { - struct ldc_version ver = *vp; - if (ver.minor > vap->minor) - ver.minor = vap->minor; - err = send_version_ack(lp, &ver); - if (!err) { - lp->ver = ver; - lp->hs_state = LDC_HS_GOTVERS; - } - } - if (err) - return ldc_abort(lp); - - return 0; -} - -static int process_ver_ack(struct ldc_channel *lp, struct ldc_version *vp) -{ - ldcdbg(HS, "GOT VERSION ACK major[%x] minor[%x]\n", - vp->major, vp->minor); - - if (lp->hs_state == LDC_HS_GOTVERS) { - if (lp->ver.major != vp->major || - lp->ver.minor != vp->minor) - return ldc_abort(lp); - } else { - lp->ver = *vp; - lp->hs_state = LDC_HS_GOTVERS; - } - if (send_rts(lp)) - return ldc_abort(lp); - return 0; -} - -static int process_ver_nack(struct ldc_channel *lp, struct ldc_version *vp) -{ - struct ldc_version *vap; - - if ((vp->major == 0 && vp->minor == 0) || - !(vap = find_by_major(vp->major))) { - return ldc_abort(lp); - } else { - struct ldc_packet *p; - unsigned long new_tail; - - p = handshake_compose_ctrl(lp, LDC_INFO, LDC_VERS, - vap, sizeof(*vap), - &new_tail); - if (p) - return send_tx_packet(lp, p, new_tail); - else - return ldc_abort(lp); - } -} - -static int process_version(struct ldc_channel *lp, - struct ldc_packet *p) -{ - struct ldc_version *vp; - - vp = (struct ldc_version *) p->u.u_data; - - switch (p->stype) { - case LDC_INFO: - return process_ver_info(lp, vp); - - case LDC_ACK: - return process_ver_ack(lp, vp); - - case LDC_NACK: - return process_ver_nack(lp, vp); - - default: - return ldc_abort(lp); - } -} - -static int process_rts(struct ldc_channel *lp, - struct ldc_packet *p) -{ - ldcdbg(HS, "GOT RTS stype[%x] seqid[%x] env[%x]\n", - p->stype, p->seqid, p->env); - - if (p->stype != LDC_INFO || - lp->hs_state != LDC_HS_GOTVERS || - p->env != lp->cfg.mode) - return ldc_abort(lp); - - lp->snd_nxt = p->seqid; - lp->rcv_nxt = p->seqid; - lp->hs_state = LDC_HS_SENTRTR; - if (send_rtr(lp)) - return ldc_abort(lp); - - return 0; -} - -static int process_rtr(struct ldc_channel *lp, - struct ldc_packet *p) -{ - ldcdbg(HS, "GOT RTR stype[%x] seqid[%x] env[%x]\n", - p->stype, p->seqid, p->env); - - if (p->stype != LDC_INFO || - p->env != lp->cfg.mode) - return ldc_abort(lp); - - lp->snd_nxt = p->seqid; - lp->hs_state = LDC_HS_COMPLETE; - ldc_set_state(lp, LDC_STATE_CONNECTED); - send_rdx(lp); - - return LDC_EVENT_UP; -} - -static int rx_seq_ok(struct ldc_channel *lp, u32 seqid) -{ - return lp->rcv_nxt + 1 == seqid; -} - -static int process_rdx(struct ldc_channel *lp, - struct ldc_packet *p) -{ - ldcdbg(HS, "GOT RDX stype[%x] seqid[%x] env[%x] ackid[%x]\n", - p->stype, p->seqid, p->env, p->u.r.ackid); - - if (p->stype != LDC_INFO || - !(rx_seq_ok(lp, p->seqid))) - return ldc_abort(lp); - - lp->rcv_nxt = p->seqid; - - lp->hs_state = LDC_HS_COMPLETE; - ldc_set_state(lp, LDC_STATE_CONNECTED); - - return LDC_EVENT_UP; -} - -static int process_control_frame(struct ldc_channel *lp, - struct ldc_packet *p) -{ - switch (p->ctrl) { - case LDC_VERS: - return process_version(lp, p); - - case LDC_RTS: - return process_rts(lp, p); - - case LDC_RTR: - return process_rtr(lp, p); - - case LDC_RDX: - return process_rdx(lp, p); - - default: - return ldc_abort(lp); - } -} - -static int process_error_frame(struct ldc_channel *lp, - struct ldc_packet *p) -{ - return ldc_abort(lp); -} - -static int process_data_ack(struct ldc_channel *lp, - struct ldc_packet *ack) -{ - unsigned long head = lp->tx_acked; - u32 ackid = ack->u.r.ackid; - - while (1) { - struct ldc_packet *p = lp->tx_base + (head / LDC_PACKET_SIZE); - - head = tx_advance(lp, head); - - if (p->seqid == ackid) { - lp->tx_acked = head; - return 0; - } - if (head == lp->tx_tail) - return ldc_abort(lp); - } - - return 0; -} - -static void send_events(struct ldc_channel *lp, unsigned int event_mask) -{ - if (event_mask & LDC_EVENT_RESET) - lp->cfg.event(lp->event_arg, LDC_EVENT_RESET); - if (event_mask & LDC_EVENT_UP) - lp->cfg.event(lp->event_arg, LDC_EVENT_UP); - if (event_mask & LDC_EVENT_DATA_READY) - lp->cfg.event(lp->event_arg, LDC_EVENT_DATA_READY); -} - -static irqreturn_t ldc_rx(int irq, void *dev_id) -{ - struct ldc_channel *lp = dev_id; - unsigned long orig_state, hv_err, flags; - unsigned int event_mask; - - spin_lock_irqsave(&lp->lock, flags); - - orig_state = lp->chan_state; - hv_err = sun4v_ldc_rx_get_state(lp->id, - &lp->rx_head, - &lp->rx_tail, - &lp->chan_state); - - ldcdbg(RX, "RX state[0x%02lx:0x%02lx] head[0x%04lx] tail[0x%04lx]\n", - orig_state, lp->chan_state, lp->rx_head, lp->rx_tail); - - event_mask = 0; - - if (lp->cfg.mode == LDC_MODE_RAW && - lp->chan_state == LDC_CHANNEL_UP) { - lp->hs_state = LDC_HS_COMPLETE; - ldc_set_state(lp, LDC_STATE_CONNECTED); - - event_mask |= LDC_EVENT_UP; - - orig_state = lp->chan_state; - } - - /* If we are in reset state, flush the RX queue and ignore - * everything. - */ - if (lp->flags & LDC_FLAG_RESET) { - (void) __set_rx_head(lp, lp->rx_tail); - goto out; - } - - /* Once we finish the handshake, we let the ldc_read() - * paths do all of the control frame and state management. - * Just trigger the callback. - */ - if (lp->hs_state == LDC_HS_COMPLETE) { -handshake_complete: - if (lp->chan_state != orig_state) { - unsigned int event = LDC_EVENT_RESET; - - if (lp->chan_state == LDC_CHANNEL_UP) - event = LDC_EVENT_UP; - - event_mask |= event; - } - if (lp->rx_head != lp->rx_tail) - event_mask |= LDC_EVENT_DATA_READY; - - goto out; - } - - if (lp->chan_state != orig_state) - goto out; - - while (lp->rx_head != lp->rx_tail) { - struct ldc_packet *p; - unsigned long new; - int err; - - p = lp->rx_base + (lp->rx_head / LDC_PACKET_SIZE); - - switch (p->type) { - case LDC_CTRL: - err = process_control_frame(lp, p); - if (err > 0) - event_mask |= err; - break; - - case LDC_DATA: - event_mask |= LDC_EVENT_DATA_READY; - err = 0; - break; - - case LDC_ERR: - err = process_error_frame(lp, p); - break; - - default: - err = ldc_abort(lp); - break; - } - - if (err < 0) - break; - - new = lp->rx_head; - new += LDC_PACKET_SIZE; - if (new == (lp->rx_num_entries * LDC_PACKET_SIZE)) - new = 0; - lp->rx_head = new; - - err = __set_rx_head(lp, new); - if (err < 0) { - (void) ldc_abort(lp); - break; - } - if (lp->hs_state == LDC_HS_COMPLETE) - goto handshake_complete; - } - -out: - spin_unlock_irqrestore(&lp->lock, flags); - - send_events(lp, event_mask); - - return IRQ_HANDLED; -} - -static irqreturn_t ldc_tx(int irq, void *dev_id) -{ - struct ldc_channel *lp = dev_id; - unsigned long flags, hv_err, orig_state; - unsigned int event_mask = 0; - - spin_lock_irqsave(&lp->lock, flags); - - orig_state = lp->chan_state; - hv_err = sun4v_ldc_tx_get_state(lp->id, - &lp->tx_head, - &lp->tx_tail, - &lp->chan_state); - - ldcdbg(TX, " TX state[0x%02lx:0x%02lx] head[0x%04lx] tail[0x%04lx]\n", - orig_state, lp->chan_state, lp->tx_head, lp->tx_tail); - - if (lp->cfg.mode == LDC_MODE_RAW && - lp->chan_state == LDC_CHANNEL_UP) { - lp->hs_state = LDC_HS_COMPLETE; - ldc_set_state(lp, LDC_STATE_CONNECTED); - - event_mask |= LDC_EVENT_UP; - } - - spin_unlock_irqrestore(&lp->lock, flags); - - send_events(lp, event_mask); - - return IRQ_HANDLED; -} - -/* XXX ldc_alloc() and ldc_free() needs to run under a mutex so - * XXX that addition and removal from the ldc_channel_list has - * XXX atomicity, otherwise the __ldc_channel_exists() check is - * XXX totally pointless as another thread can slip into ldc_alloc() - * XXX and add a channel with the same ID. There also needs to be - * XXX a spinlock for ldc_channel_list. - */ -static HLIST_HEAD(ldc_channel_list); - -static int __ldc_channel_exists(unsigned long id) -{ - struct ldc_channel *lp; - struct hlist_node *n; - - hlist_for_each_entry(lp, n, &ldc_channel_list, list) { - if (lp->id == id) - return 1; - } - return 0; -} - -static int alloc_queue(const char *name, unsigned long num_entries, - struct ldc_packet **base, unsigned long *ra) -{ - unsigned long size, order; - void *q; - - size = num_entries * LDC_PACKET_SIZE; - order = get_order(size); - - q = (void *) __get_free_pages(GFP_KERNEL, order); - if (!q) { - printk(KERN_ERR PFX "Alloc of %s queue failed with " - "size=%lu order=%lu\n", name, size, order); - return -ENOMEM; - } - - memset(q, 0, PAGE_SIZE << order); - - *base = q; - *ra = __pa(q); - - return 0; -} - -static void free_queue(unsigned long num_entries, struct ldc_packet *q) -{ - unsigned long size, order; - - if (!q) - return; - - size = num_entries * LDC_PACKET_SIZE; - order = get_order(size); - - free_pages((unsigned long)q, order); -} - -/* XXX Make this configurable... XXX */ -#define LDC_IOTABLE_SIZE (8 * 1024) - -static int ldc_iommu_init(struct ldc_channel *lp) -{ - unsigned long sz, num_tsb_entries, tsbsize, order; - struct ldc_iommu *iommu = &lp->iommu; - struct ldc_mtable_entry *table; - unsigned long hv_err; - int err; - - num_tsb_entries = LDC_IOTABLE_SIZE; - tsbsize = num_tsb_entries * sizeof(struct ldc_mtable_entry); - - spin_lock_init(&iommu->lock); - - sz = num_tsb_entries / 8; - sz = (sz + 7UL) & ~7UL; - iommu->arena.map = kzalloc(sz, GFP_KERNEL); - if (!iommu->arena.map) { - printk(KERN_ERR PFX "Alloc of arena map failed, sz=%lu\n", sz); - return -ENOMEM; - } - - iommu->arena.limit = num_tsb_entries; - - order = get_order(tsbsize); - - table = (struct ldc_mtable_entry *) - __get_free_pages(GFP_KERNEL, order); - err = -ENOMEM; - if (!table) { - printk(KERN_ERR PFX "Alloc of MTE table failed, " - "size=%lu order=%lu\n", tsbsize, order); - goto out_free_map; - } - - memset(table, 0, PAGE_SIZE << order); - - iommu->page_table = table; - - hv_err = sun4v_ldc_set_map_table(lp->id, __pa(table), - num_tsb_entries); - err = -EINVAL; - if (hv_err) - goto out_free_table; - - return 0; - -out_free_table: - free_pages((unsigned long) table, order); - iommu->page_table = NULL; - -out_free_map: - kfree(iommu->arena.map); - iommu->arena.map = NULL; - - return err; -} - -static void ldc_iommu_release(struct ldc_channel *lp) -{ - struct ldc_iommu *iommu = &lp->iommu; - unsigned long num_tsb_entries, tsbsize, order; - - (void) sun4v_ldc_set_map_table(lp->id, 0, 0); - - num_tsb_entries = iommu->arena.limit; - tsbsize = num_tsb_entries * sizeof(struct ldc_mtable_entry); - order = get_order(tsbsize); - - free_pages((unsigned long) iommu->page_table, order); - iommu->page_table = NULL; - - kfree(iommu->arena.map); - iommu->arena.map = NULL; -} - -struct ldc_channel *ldc_alloc(unsigned long id, - const struct ldc_channel_config *cfgp, - void *event_arg) -{ - struct ldc_channel *lp; - const struct ldc_mode_ops *mops; - unsigned long dummy1, dummy2, hv_err; - u8 mss, *mssbuf; - int err; - - err = -ENODEV; - if (!ldom_domaining_enabled) - goto out_err; - - err = -EINVAL; - if (!cfgp) - goto out_err; - - switch (cfgp->mode) { - case LDC_MODE_RAW: - mops = &raw_ops; - mss = LDC_PACKET_SIZE; - break; - - case LDC_MODE_UNRELIABLE: - mops = &nonraw_ops; - mss = LDC_PACKET_SIZE - 8; - break; - - case LDC_MODE_STREAM: - mops = &stream_ops; - mss = LDC_PACKET_SIZE - 8 - 8; - break; - - default: - goto out_err; - } - - if (!cfgp->event || !event_arg || !cfgp->rx_irq || !cfgp->tx_irq) - goto out_err; - - hv_err = sun4v_ldc_tx_qinfo(id, &dummy1, &dummy2); - err = -ENODEV; - if (hv_err == HV_ECHANNEL) - goto out_err; - - err = -EEXIST; - if (__ldc_channel_exists(id)) - goto out_err; - - mssbuf = NULL; - - lp = kzalloc(sizeof(*lp), GFP_KERNEL); - err = -ENOMEM; - if (!lp) - goto out_err; - - spin_lock_init(&lp->lock); - - lp->id = id; - - err = ldc_iommu_init(lp); - if (err) - goto out_free_ldc; - - lp->mops = mops; - lp->mss = mss; - - lp->cfg = *cfgp; - if (!lp->cfg.mtu) - lp->cfg.mtu = LDC_DEFAULT_MTU; - - if (lp->cfg.mode == LDC_MODE_STREAM) { - mssbuf = kzalloc(lp->cfg.mtu, GFP_KERNEL); - if (!mssbuf) { - err = -ENOMEM; - goto out_free_iommu; - } - lp->mssbuf = mssbuf; - } - - lp->event_arg = event_arg; - - /* XXX allow setting via ldc_channel_config to override defaults - * XXX or use some formula based upon mtu - */ - lp->tx_num_entries = LDC_DEFAULT_NUM_ENTRIES; - lp->rx_num_entries = LDC_DEFAULT_NUM_ENTRIES; - - err = alloc_queue("TX", lp->tx_num_entries, - &lp->tx_base, &lp->tx_ra); - if (err) - goto out_free_mssbuf; - - err = alloc_queue("RX", lp->rx_num_entries, - &lp->rx_base, &lp->rx_ra); - if (err) - goto out_free_txq; - - lp->flags |= LDC_FLAG_ALLOCED_QUEUES; - - lp->hs_state = LDC_HS_CLOSED; - ldc_set_state(lp, LDC_STATE_INIT); - - INIT_HLIST_NODE(&lp->list); - hlist_add_head(&lp->list, &ldc_channel_list); - - INIT_HLIST_HEAD(&lp->mh_list); - - return lp; - -out_free_txq: - free_queue(lp->tx_num_entries, lp->tx_base); - -out_free_mssbuf: - if (mssbuf) - kfree(mssbuf); - -out_free_iommu: - ldc_iommu_release(lp); - -out_free_ldc: - kfree(lp); - -out_err: - return ERR_PTR(err); -} -EXPORT_SYMBOL(ldc_alloc); - -void ldc_free(struct ldc_channel *lp) -{ - if (lp->flags & LDC_FLAG_REGISTERED_IRQS) { - free_irq(lp->cfg.rx_irq, lp); - free_irq(lp->cfg.tx_irq, lp); - } - - if (lp->flags & LDC_FLAG_REGISTERED_QUEUES) { - sun4v_ldc_tx_qconf(lp->id, 0, 0); - sun4v_ldc_rx_qconf(lp->id, 0, 0); - lp->flags &= ~LDC_FLAG_REGISTERED_QUEUES; - } - if (lp->flags & LDC_FLAG_ALLOCED_QUEUES) { - free_queue(lp->tx_num_entries, lp->tx_base); - free_queue(lp->rx_num_entries, lp->rx_base); - lp->flags &= ~LDC_FLAG_ALLOCED_QUEUES; - } - - hlist_del(&lp->list); - - if (lp->mssbuf) - kfree(lp->mssbuf); - - ldc_iommu_release(lp); - - kfree(lp); -} -EXPORT_SYMBOL(ldc_free); - -/* Bind the channel. This registers the LDC queues with - * the hypervisor and puts the channel into a pseudo-listening - * state. This does not initiate a handshake, ldc_connect() does - * that. - */ -int ldc_bind(struct ldc_channel *lp, const char *name) -{ - unsigned long hv_err, flags; - int err = -EINVAL; - - if (!name || - (lp->state != LDC_STATE_INIT)) - return -EINVAL; - - snprintf(lp->rx_irq_name, LDC_IRQ_NAME_MAX, "%s RX", name); - snprintf(lp->tx_irq_name, LDC_IRQ_NAME_MAX, "%s TX", name); - - err = request_irq(lp->cfg.rx_irq, ldc_rx, - IRQF_SAMPLE_RANDOM | IRQF_SHARED, - lp->rx_irq_name, lp); - if (err) - return err; - - err = request_irq(lp->cfg.tx_irq, ldc_tx, - IRQF_SAMPLE_RANDOM | IRQF_SHARED, - lp->tx_irq_name, lp); - if (err) { - free_irq(lp->cfg.rx_irq, lp); - return err; - } - - - spin_lock_irqsave(&lp->lock, flags); - - enable_irq(lp->cfg.rx_irq); - enable_irq(lp->cfg.tx_irq); - - lp->flags |= LDC_FLAG_REGISTERED_IRQS; - - err = -ENODEV; - hv_err = sun4v_ldc_tx_qconf(lp->id, 0, 0); - if (hv_err) - goto out_free_irqs; - - hv_err = sun4v_ldc_tx_qconf(lp->id, lp->tx_ra, lp->tx_num_entries); - if (hv_err) - goto out_free_irqs; - - hv_err = sun4v_ldc_rx_qconf(lp->id, 0, 0); - if (hv_err) - goto out_unmap_tx; - - hv_err = sun4v_ldc_rx_qconf(lp->id, lp->rx_ra, lp->rx_num_entries); - if (hv_err) - goto out_unmap_tx; - - lp->flags |= LDC_FLAG_REGISTERED_QUEUES; - - hv_err = sun4v_ldc_tx_get_state(lp->id, - &lp->tx_head, - &lp->tx_tail, - &lp->chan_state); - err = -EBUSY; - if (hv_err) - goto out_unmap_rx; - - lp->tx_acked = lp->tx_head; - - lp->hs_state = LDC_HS_OPEN; - ldc_set_state(lp, LDC_STATE_BOUND); - - spin_unlock_irqrestore(&lp->lock, flags); - - return 0; - -out_unmap_rx: - lp->flags &= ~LDC_FLAG_REGISTERED_QUEUES; - sun4v_ldc_rx_qconf(lp->id, 0, 0); - -out_unmap_tx: - sun4v_ldc_tx_qconf(lp->id, 0, 0); - -out_free_irqs: - lp->flags &= ~LDC_FLAG_REGISTERED_IRQS; - free_irq(lp->cfg.tx_irq, lp); - free_irq(lp->cfg.rx_irq, lp); - - spin_unlock_irqrestore(&lp->lock, flags); - - return err; -} -EXPORT_SYMBOL(ldc_bind); - -int ldc_connect(struct ldc_channel *lp) -{ - unsigned long flags; - int err; - - if (lp->cfg.mode == LDC_MODE_RAW) - return -EINVAL; - - spin_lock_irqsave(&lp->lock, flags); - - if (!(lp->flags & LDC_FLAG_ALLOCED_QUEUES) || - !(lp->flags & LDC_FLAG_REGISTERED_QUEUES) || - lp->hs_state != LDC_HS_OPEN) - err = -EINVAL; - else - err = start_handshake(lp); - - spin_unlock_irqrestore(&lp->lock, flags); - - return err; -} -EXPORT_SYMBOL(ldc_connect); - -int ldc_disconnect(struct ldc_channel *lp) -{ - unsigned long hv_err, flags; - int err; - - if (lp->cfg.mode == LDC_MODE_RAW) - return -EINVAL; - - if (!(lp->flags & LDC_FLAG_ALLOCED_QUEUES) || - !(lp->flags & LDC_FLAG_REGISTERED_QUEUES)) - return -EINVAL; - - spin_lock_irqsave(&lp->lock, flags); - - err = -ENODEV; - hv_err = sun4v_ldc_tx_qconf(lp->id, 0, 0); - if (hv_err) - goto out_err; - - hv_err = sun4v_ldc_tx_qconf(lp->id, lp->tx_ra, lp->tx_num_entries); - if (hv_err) - goto out_err; - - hv_err = sun4v_ldc_rx_qconf(lp->id, 0, 0); - if (hv_err) - goto out_err; - - hv_err = sun4v_ldc_rx_qconf(lp->id, lp->rx_ra, lp->rx_num_entries); - if (hv_err) - goto out_err; - - ldc_set_state(lp, LDC_STATE_BOUND); - lp->hs_state = LDC_HS_OPEN; - lp->flags |= LDC_FLAG_RESET; - - spin_unlock_irqrestore(&lp->lock, flags); - - return 0; - -out_err: - sun4v_ldc_tx_qconf(lp->id, 0, 0); - sun4v_ldc_rx_qconf(lp->id, 0, 0); - free_irq(lp->cfg.tx_irq, lp); - free_irq(lp->cfg.rx_irq, lp); - lp->flags &= ~(LDC_FLAG_REGISTERED_IRQS | - LDC_FLAG_REGISTERED_QUEUES); - ldc_set_state(lp, LDC_STATE_INIT); - - spin_unlock_irqrestore(&lp->lock, flags); - - return err; -} -EXPORT_SYMBOL(ldc_disconnect); - -int ldc_state(struct ldc_channel *lp) -{ - return lp->state; -} -EXPORT_SYMBOL(ldc_state); - -static int write_raw(struct ldc_channel *lp, const void *buf, unsigned int size) -{ - struct ldc_packet *p; - unsigned long new_tail; - int err; - - if (size > LDC_PACKET_SIZE) - return -EMSGSIZE; - - p = data_get_tx_packet(lp, &new_tail); - if (!p) - return -EAGAIN; - - memcpy(p, buf, size); - - err = send_tx_packet(lp, p, new_tail); - if (!err) - err = size; - - return err; -} - -static int read_raw(struct ldc_channel *lp, void *buf, unsigned int size) -{ - struct ldc_packet *p; - unsigned long hv_err, new; - int err; - - if (size < LDC_PACKET_SIZE) - return -EINVAL; - - hv_err = sun4v_ldc_rx_get_state(lp->id, - &lp->rx_head, - &lp->rx_tail, - &lp->chan_state); - if (hv_err) - return ldc_abort(lp); - - if (lp->chan_state == LDC_CHANNEL_DOWN || - lp->chan_state == LDC_CHANNEL_RESETTING) - return -ECONNRESET; - - if (lp->rx_head == lp->rx_tail) - return 0; - - p = lp->rx_base + (lp->rx_head / LDC_PACKET_SIZE); - memcpy(buf, p, LDC_PACKET_SIZE); - - new = rx_advance(lp, lp->rx_head); - lp->rx_head = new; - - err = __set_rx_head(lp, new); - if (err < 0) - err = -ECONNRESET; - else - err = LDC_PACKET_SIZE; - - return err; -} - -static const struct ldc_mode_ops raw_ops = { - .write = write_raw, - .read = read_raw, -}; - -static int write_nonraw(struct ldc_channel *lp, const void *buf, - unsigned int size) -{ - unsigned long hv_err, tail; - unsigned int copied; - u32 seq; - int err; - - hv_err = sun4v_ldc_tx_get_state(lp->id, &lp->tx_head, &lp->tx_tail, - &lp->chan_state); - if (unlikely(hv_err)) - return -EBUSY; - - if (unlikely(lp->chan_state != LDC_CHANNEL_UP)) - return ldc_abort(lp); - - if (!tx_has_space_for(lp, size)) - return -EAGAIN; - - seq = lp->snd_nxt; - copied = 0; - tail = lp->tx_tail; - while (copied < size) { - struct ldc_packet *p = lp->tx_base + (tail / LDC_PACKET_SIZE); - u8 *data = ((lp->cfg.mode == LDC_MODE_UNRELIABLE) ? - p->u.u_data : - p->u.r.r_data); - int data_len; - - p->type = LDC_DATA; - p->stype = LDC_INFO; - p->ctrl = 0; - - data_len = size - copied; - if (data_len > lp->mss) - data_len = lp->mss; - - BUG_ON(data_len > LDC_LEN); - - p->env = (data_len | - (copied == 0 ? LDC_START : 0) | - (data_len == size - copied ? LDC_STOP : 0)); - - p->seqid = ++seq; - - ldcdbg(DATA, "SENT DATA [%02x:%02x:%02x:%02x:%08x]\n", - p->type, - p->stype, - p->ctrl, - p->env, - p->seqid); - - memcpy(data, buf, data_len); - buf += data_len; - copied += data_len; - - tail = tx_advance(lp, tail); - } - - err = set_tx_tail(lp, tail); - if (!err) { - lp->snd_nxt = seq; - err = size; - } - - return err; -} - -static int rx_bad_seq(struct ldc_channel *lp, struct ldc_packet *p, - struct ldc_packet *first_frag) -{ - int err; - - if (first_frag) - lp->rcv_nxt = first_frag->seqid - 1; - - err = send_data_nack(lp, p); - if (err) - return err; - - err = __set_rx_head(lp, lp->rx_tail); - if (err < 0) - return ldc_abort(lp); - - return 0; -} - -static int data_ack_nack(struct ldc_channel *lp, struct ldc_packet *p) -{ - if (p->stype & LDC_ACK) { - int err = process_data_ack(lp, p); - if (err) - return err; - } - if (p->stype & LDC_NACK) - return ldc_abort(lp); - - return 0; -} - -static int rx_data_wait(struct ldc_channel *lp, unsigned long cur_head) -{ - unsigned long dummy; - int limit = 1000; - - ldcdbg(DATA, "DATA WAIT cur_head[%lx] rx_head[%lx] rx_tail[%lx]\n", - cur_head, lp->rx_head, lp->rx_tail); - while (limit-- > 0) { - unsigned long hv_err; - - hv_err = sun4v_ldc_rx_get_state(lp->id, - &dummy, - &lp->rx_tail, - &lp->chan_state); - if (hv_err) - return ldc_abort(lp); - - if (lp->chan_state == LDC_CHANNEL_DOWN || - lp->chan_state == LDC_CHANNEL_RESETTING) - return -ECONNRESET; - - if (cur_head != lp->rx_tail) { - ldcdbg(DATA, "DATA WAIT DONE " - "head[%lx] tail[%lx] chan_state[%lx]\n", - dummy, lp->rx_tail, lp->chan_state); - return 0; - } - - udelay(1); - } - return -EAGAIN; -} - -static int rx_set_head(struct ldc_channel *lp, unsigned long head) -{ - int err = __set_rx_head(lp, head); - - if (err < 0) - return ldc_abort(lp); - - lp->rx_head = head; - return 0; -} - -static void send_data_ack(struct ldc_channel *lp) -{ - unsigned long new_tail; - struct ldc_packet *p; - - p = data_get_tx_packet(lp, &new_tail); - if (likely(p)) { - int err; - - memset(p, 0, sizeof(*p)); - p->type = LDC_DATA; - p->stype = LDC_ACK; - p->ctrl = 0; - p->seqid = lp->snd_nxt + 1; - p->u.r.ackid = lp->rcv_nxt; - - err = send_tx_packet(lp, p, new_tail); - if (!err) - lp->snd_nxt++; - } -} - -static int read_nonraw(struct ldc_channel *lp, void *buf, unsigned int size) -{ - struct ldc_packet *first_frag; - unsigned long hv_err, new; - int err, copied; - - hv_err = sun4v_ldc_rx_get_state(lp->id, - &lp->rx_head, - &lp->rx_tail, - &lp->chan_state); - if (hv_err) - return ldc_abort(lp); - - if (lp->chan_state == LDC_CHANNEL_DOWN || - lp->chan_state == LDC_CHANNEL_RESETTING) - return -ECONNRESET; - - if (lp->rx_head == lp->rx_tail) - return 0; - - first_frag = NULL; - copied = err = 0; - new = lp->rx_head; - while (1) { - struct ldc_packet *p; - int pkt_len; - - BUG_ON(new == lp->rx_tail); - p = lp->rx_base + (new / LDC_PACKET_SIZE); - - ldcdbg(RX, "RX read pkt[%02x:%02x:%02x:%02x:%08x:%08x] " - "rcv_nxt[%08x]\n", - p->type, - p->stype, - p->ctrl, - p->env, - p->seqid, - p->u.r.ackid, - lp->rcv_nxt); - - if (unlikely(!rx_seq_ok(lp, p->seqid))) { - err = rx_bad_seq(lp, p, first_frag); - copied = 0; - break; - } - - if (p->type & LDC_CTRL) { - err = process_control_frame(lp, p); - if (err < 0) - break; - err = 0; - } - - lp->rcv_nxt = p->seqid; - - if (!(p->type & LDC_DATA)) { - new = rx_advance(lp, new); - goto no_data; - } - if (p->stype & (LDC_ACK | LDC_NACK)) { - err = data_ack_nack(lp, p); - if (err) - break; - } - if (!(p->stype & LDC_INFO)) { - new = rx_advance(lp, new); - err = rx_set_head(lp, new); - if (err) - break; - goto no_data; - } - - pkt_len = p->env & LDC_LEN; - - /* Every initial packet starts with the START bit set. - * - * Singleton packets will have both START+STOP set. - * - * Fragments will have START set in the first frame, STOP - * set in the last frame, and neither bit set in middle - * frames of the packet. - * - * Therefore if we are at the beginning of a packet and - * we don't see START, or we are in the middle of a fragmented - * packet and do see START, we are unsynchronized and should - * flush the RX queue. - */ - if ((first_frag == NULL && !(p->env & LDC_START)) || - (first_frag != NULL && (p->env & LDC_START))) { - if (!first_frag) - new = rx_advance(lp, new); - - err = rx_set_head(lp, new); - if (err) - break; - - if (!first_frag) - goto no_data; - } - if (!first_frag) - first_frag = p; - - if (pkt_len > size - copied) { - /* User didn't give us a big enough buffer, - * what to do? This is a pretty serious error. - * - * Since we haven't updated the RX ring head to - * consume any of the packets, signal the error - * to the user and just leave the RX ring alone. - * - * This seems the best behavior because this allows - * a user of the LDC layer to start with a small - * RX buffer for ldc_read() calls and use -EMSGSIZE - * as a cue to enlarge it's read buffer. - */ - err = -EMSGSIZE; - break; - } - - /* Ok, we are gonna eat this one. */ - new = rx_advance(lp, new); - - memcpy(buf, - (lp->cfg.mode == LDC_MODE_UNRELIABLE ? - p->u.u_data : p->u.r.r_data), pkt_len); - buf += pkt_len; - copied += pkt_len; - - if (p->env & LDC_STOP) - break; - -no_data: - if (new == lp->rx_tail) { - err = rx_data_wait(lp, new); - if (err) - break; - } - } - - if (!err) - err = rx_set_head(lp, new); - - if (err && first_frag) - lp->rcv_nxt = first_frag->seqid - 1; - - if (!err) { - err = copied; - if (err > 0 && lp->cfg.mode != LDC_MODE_UNRELIABLE) - send_data_ack(lp); - } - - return err; -} - -static const struct ldc_mode_ops nonraw_ops = { - .write = write_nonraw, - .read = read_nonraw, -}; - -static int write_stream(struct ldc_channel *lp, const void *buf, - unsigned int size) -{ - if (size > lp->cfg.mtu) - size = lp->cfg.mtu; - return write_nonraw(lp, buf, size); -} - -static int read_stream(struct ldc_channel *lp, void *buf, unsigned int size) -{ - if (!lp->mssbuf_len) { - int err = read_nonraw(lp, lp->mssbuf, lp->cfg.mtu); - if (err < 0) - return err; - - lp->mssbuf_len = err; - lp->mssbuf_off = 0; - } - - if (size > lp->mssbuf_len) - size = lp->mssbuf_len; - memcpy(buf, lp->mssbuf + lp->mssbuf_off, size); - - lp->mssbuf_off += size; - lp->mssbuf_len -= size; - - return size; -} - -static const struct ldc_mode_ops stream_ops = { - .write = write_stream, - .read = read_stream, -}; - -int ldc_write(struct ldc_channel *lp, const void *buf, unsigned int size) -{ - unsigned long flags; - int err; - - if (!buf) - return -EINVAL; - - if (!size) - return 0; - - spin_lock_irqsave(&lp->lock, flags); - - if (lp->hs_state != LDC_HS_COMPLETE) - err = -ENOTCONN; - else - err = lp->mops->write(lp, buf, size); - - spin_unlock_irqrestore(&lp->lock, flags); - - return err; -} -EXPORT_SYMBOL(ldc_write); - -int ldc_read(struct ldc_channel *lp, void *buf, unsigned int size) -{ - unsigned long flags; - int err; - - if (!buf) - return -EINVAL; - - if (!size) - return 0; - - spin_lock_irqsave(&lp->lock, flags); - - if (lp->hs_state != LDC_HS_COMPLETE) - err = -ENOTCONN; - else - err = lp->mops->read(lp, buf, size); - - spin_unlock_irqrestore(&lp->lock, flags); - - return err; -} -EXPORT_SYMBOL(ldc_read); - -static long arena_alloc(struct ldc_iommu *iommu, unsigned long npages) -{ - struct iommu_arena *arena = &iommu->arena; - unsigned long n, i, start, end, limit; - int pass; - - limit = arena->limit; - start = arena->hint; - pass = 0; - -again: - n = find_next_zero_bit(arena->map, limit, start); - end = n + npages; - if (unlikely(end >= limit)) { - if (likely(pass < 1)) { - limit = start; - start = 0; - pass++; - goto again; - } else { - /* Scanned the whole thing, give up. */ - return -1; - } - } - - for (i = n; i < end; i++) { - if (test_bit(i, arena->map)) { - start = i + 1; - goto again; - } - } - - for (i = n; i < end; i++) - __set_bit(i, arena->map); - - arena->hint = end; - - return n; -} - -#define COOKIE_PGSZ_CODE 0xf000000000000000ULL -#define COOKIE_PGSZ_CODE_SHIFT 60ULL - -static u64 pagesize_code(void) -{ - switch (PAGE_SIZE) { - default: - case (8ULL * 1024ULL): - return 0; - case (64ULL * 1024ULL): - return 1; - case (512ULL * 1024ULL): - return 2; - case (4ULL * 1024ULL * 1024ULL): - return 3; - case (32ULL * 1024ULL * 1024ULL): - return 4; - case (256ULL * 1024ULL * 1024ULL): - return 5; - } -} - -static u64 make_cookie(u64 index, u64 pgsz_code, u64 page_offset) -{ - return ((pgsz_code << COOKIE_PGSZ_CODE_SHIFT) | - (index << PAGE_SHIFT) | - page_offset); -} - -static u64 cookie_to_index(u64 cookie, unsigned long *shift) -{ - u64 szcode = cookie >> COOKIE_PGSZ_CODE_SHIFT; - - cookie &= ~COOKIE_PGSZ_CODE; - - *shift = szcode * 3; - - return (cookie >> (13ULL + (szcode * 3ULL))); -} - -static struct ldc_mtable_entry *alloc_npages(struct ldc_iommu *iommu, - unsigned long npages) -{ - long entry; - - entry = arena_alloc(iommu, npages); - if (unlikely(entry < 0)) - return NULL; - - return iommu->page_table + entry; -} - -static u64 perm_to_mte(unsigned int map_perm) -{ - u64 mte_base; - - mte_base = pagesize_code(); - - if (map_perm & LDC_MAP_SHADOW) { - if (map_perm & LDC_MAP_R) - mte_base |= LDC_MTE_COPY_R; - if (map_perm & LDC_MAP_W) - mte_base |= LDC_MTE_COPY_W; - } - if (map_perm & LDC_MAP_DIRECT) { - if (map_perm & LDC_MAP_R) - mte_base |= LDC_MTE_READ; - if (map_perm & LDC_MAP_W) - mte_base |= LDC_MTE_WRITE; - if (map_perm & LDC_MAP_X) - mte_base |= LDC_MTE_EXEC; - } - if (map_perm & LDC_MAP_IO) { - if (map_perm & LDC_MAP_R) - mte_base |= LDC_MTE_IOMMU_R; - if (map_perm & LDC_MAP_W) - mte_base |= LDC_MTE_IOMMU_W; - } - - return mte_base; -} - -static int pages_in_region(unsigned long base, long len) -{ - int count = 0; - - do { - unsigned long new = (base + PAGE_SIZE) & PAGE_MASK; - - len -= (new - base); - base = new; - count++; - } while (len > 0); - - return count; -} - -struct cookie_state { - struct ldc_mtable_entry *page_table; - struct ldc_trans_cookie *cookies; - u64 mte_base; - u64 prev_cookie; - u32 pte_idx; - u32 nc; -}; - -static void fill_cookies(struct cookie_state *sp, unsigned long pa, - unsigned long off, unsigned long len) -{ - do { - unsigned long tlen, new = pa + PAGE_SIZE; - u64 this_cookie; - - sp->page_table[sp->pte_idx].mte = sp->mte_base | pa; - - tlen = PAGE_SIZE; - if (off) - tlen = PAGE_SIZE - off; - if (tlen > len) - tlen = len; - - this_cookie = make_cookie(sp->pte_idx, - pagesize_code(), off); - - off = 0; - - if (this_cookie == sp->prev_cookie) { - sp->cookies[sp->nc - 1].cookie_size += tlen; - } else { - sp->cookies[sp->nc].cookie_addr = this_cookie; - sp->cookies[sp->nc].cookie_size = tlen; - sp->nc++; - } - sp->prev_cookie = this_cookie + tlen; - - sp->pte_idx++; - - len -= tlen; - pa = new; - } while (len > 0); -} - -static int sg_count_one(struct scatterlist *sg) -{ - unsigned long base = page_to_pfn(sg_page(sg)) << PAGE_SHIFT; - long len = sg->length; - - if ((sg->offset | len) & (8UL - 1)) - return -EFAULT; - - return pages_in_region(base + sg->offset, len); -} - -static int sg_count_pages(struct scatterlist *sg, int num_sg) -{ - int count; - int i; - - count = 0; - for (i = 0; i < num_sg; i++) { - int err = sg_count_one(sg + i); - if (err < 0) - return err; - count += err; - } - - return count; -} - -int ldc_map_sg(struct ldc_channel *lp, - struct scatterlist *sg, int num_sg, - struct ldc_trans_cookie *cookies, int ncookies, - unsigned int map_perm) -{ - unsigned long i, npages, flags; - struct ldc_mtable_entry *base; - struct cookie_state state; - struct ldc_iommu *iommu; - int err; - - if (map_perm & ~LDC_MAP_ALL) - return -EINVAL; - - err = sg_count_pages(sg, num_sg); - if (err < 0) - return err; - - npages = err; - if (err > ncookies) - return -EMSGSIZE; - - iommu = &lp->iommu; - - spin_lock_irqsave(&iommu->lock, flags); - base = alloc_npages(iommu, npages); - spin_unlock_irqrestore(&iommu->lock, flags); - - if (!base) - return -ENOMEM; - - state.page_table = iommu->page_table; - state.cookies = cookies; - state.mte_base = perm_to_mte(map_perm); - state.prev_cookie = ~(u64)0; - state.pte_idx = (base - iommu->page_table); - state.nc = 0; - - for (i = 0; i < num_sg; i++) - fill_cookies(&state, page_to_pfn(sg_page(&sg[i])) << PAGE_SHIFT, - sg[i].offset, sg[i].length); - - return state.nc; -} -EXPORT_SYMBOL(ldc_map_sg); - -int ldc_map_single(struct ldc_channel *lp, - void *buf, unsigned int len, - struct ldc_trans_cookie *cookies, int ncookies, - unsigned int map_perm) -{ - unsigned long npages, pa, flags; - struct ldc_mtable_entry *base; - struct cookie_state state; - struct ldc_iommu *iommu; - - if ((map_perm & ~LDC_MAP_ALL) || (ncookies < 1)) - return -EINVAL; - - pa = __pa(buf); - if ((pa | len) & (8UL - 1)) - return -EFAULT; - - npages = pages_in_region(pa, len); - - iommu = &lp->iommu; - - spin_lock_irqsave(&iommu->lock, flags); - base = alloc_npages(iommu, npages); - spin_unlock_irqrestore(&iommu->lock, flags); - - if (!base) - return -ENOMEM; - - state.page_table = iommu->page_table; - state.cookies = cookies; - state.mte_base = perm_to_mte(map_perm); - state.prev_cookie = ~(u64)0; - state.pte_idx = (base - iommu->page_table); - state.nc = 0; - fill_cookies(&state, (pa & PAGE_MASK), (pa & ~PAGE_MASK), len); - BUG_ON(state.nc != 1); - - return state.nc; -} -EXPORT_SYMBOL(ldc_map_single); - -static void free_npages(unsigned long id, struct ldc_iommu *iommu, - u64 cookie, u64 size) -{ - struct iommu_arena *arena = &iommu->arena; - unsigned long i, shift, index, npages; - struct ldc_mtable_entry *base; - - npages = PAGE_ALIGN(((cookie & ~PAGE_MASK) + size)) >> PAGE_SHIFT; - index = cookie_to_index(cookie, &shift); - base = iommu->page_table + index; - - BUG_ON(index > arena->limit || - (index + npages) > arena->limit); - - for (i = 0; i < npages; i++) { - if (base->cookie) - sun4v_ldc_revoke(id, cookie + (i << shift), - base->cookie); - base->mte = 0; - __clear_bit(index + i, arena->map); - } -} - -void ldc_unmap(struct ldc_channel *lp, struct ldc_trans_cookie *cookies, - int ncookies) -{ - struct ldc_iommu *iommu = &lp->iommu; - unsigned long flags; - int i; - - spin_lock_irqsave(&iommu->lock, flags); - for (i = 0; i < ncookies; i++) { - u64 addr = cookies[i].cookie_addr; - u64 size = cookies[i].cookie_size; - - free_npages(lp->id, iommu, addr, size); - } - spin_unlock_irqrestore(&iommu->lock, flags); -} -EXPORT_SYMBOL(ldc_unmap); - -int ldc_copy(struct ldc_channel *lp, int copy_dir, - void *buf, unsigned int len, unsigned long offset, - struct ldc_trans_cookie *cookies, int ncookies) -{ - unsigned int orig_len; - unsigned long ra; - int i; - - if (copy_dir != LDC_COPY_IN && copy_dir != LDC_COPY_OUT) { - printk(KERN_ERR PFX "ldc_copy: ID[%lu] Bad copy_dir[%d]\n", - lp->id, copy_dir); - return -EINVAL; - } - - ra = __pa(buf); - if ((ra | len | offset) & (8UL - 1)) { - printk(KERN_ERR PFX "ldc_copy: ID[%lu] Unaligned buffer " - "ra[%lx] len[%x] offset[%lx]\n", - lp->id, ra, len, offset); - return -EFAULT; - } - - if (lp->hs_state != LDC_HS_COMPLETE || - (lp->flags & LDC_FLAG_RESET)) { - printk(KERN_ERR PFX "ldc_copy: ID[%lu] Link down hs_state[%x] " - "flags[%x]\n", lp->id, lp->hs_state, lp->flags); - return -ECONNRESET; - } - - orig_len = len; - for (i = 0; i < ncookies; i++) { - unsigned long cookie_raddr = cookies[i].cookie_addr; - unsigned long this_len = cookies[i].cookie_size; - unsigned long actual_len; - - if (unlikely(offset)) { - unsigned long this_off = offset; - - if (this_off > this_len) - this_off = this_len; - - offset -= this_off; - this_len -= this_off; - if (!this_len) - continue; - cookie_raddr += this_off; - } - - if (this_len > len) - this_len = len; - - while (1) { - unsigned long hv_err; - - hv_err = sun4v_ldc_copy(lp->id, copy_dir, - cookie_raddr, ra, - this_len, &actual_len); - if (unlikely(hv_err)) { - printk(KERN_ERR PFX "ldc_copy: ID[%lu] " - "HV error %lu\n", - lp->id, hv_err); - if (lp->hs_state != LDC_HS_COMPLETE || - (lp->flags & LDC_FLAG_RESET)) - return -ECONNRESET; - else - return -EFAULT; - } - - cookie_raddr += actual_len; - ra += actual_len; - len -= actual_len; - if (actual_len == this_len) - break; - - this_len -= actual_len; - } - - if (!len) - break; - } - - /* It is caller policy what to do about short copies. - * For example, a networking driver can declare the - * packet a runt and drop it. - */ - - return orig_len - len; -} -EXPORT_SYMBOL(ldc_copy); - -void *ldc_alloc_exp_dring(struct ldc_channel *lp, unsigned int len, - struct ldc_trans_cookie *cookies, int *ncookies, - unsigned int map_perm) -{ - void *buf; - int err; - - if (len & (8UL - 1)) - return ERR_PTR(-EINVAL); - - buf = kzalloc(len, GFP_KERNEL); - if (!buf) - return ERR_PTR(-ENOMEM); - - err = ldc_map_single(lp, buf, len, cookies, *ncookies, map_perm); - if (err < 0) { - kfree(buf); - return ERR_PTR(err); - } - *ncookies = err; - - return buf; -} -EXPORT_SYMBOL(ldc_alloc_exp_dring); - -void ldc_free_exp_dring(struct ldc_channel *lp, void *buf, unsigned int len, - struct ldc_trans_cookie *cookies, int ncookies) -{ - ldc_unmap(lp, cookies, ncookies); - kfree(buf); -} -EXPORT_SYMBOL(ldc_free_exp_dring); - -static int __init ldc_init(void) -{ - unsigned long major, minor; - struct mdesc_handle *hp; - const u64 *v; - int err; - u64 mp; - - hp = mdesc_grab(); - if (!hp) - return -ENODEV; - - mp = mdesc_node_by_name(hp, MDESC_NODE_NULL, "platform"); - err = -ENODEV; - if (mp == MDESC_NODE_NULL) - goto out; - - v = mdesc_get_property(hp, mp, "domaining-enabled", NULL); - if (!v) - goto out; - - major = 1; - minor = 0; - if (sun4v_hvapi_register(HV_GRP_LDOM, major, &minor)) { - printk(KERN_INFO PFX "Could not register LDOM hvapi.\n"); - goto out; - } - - printk(KERN_INFO "%s", version); - - if (!*v) { - printk(KERN_INFO PFX "Domaining disabled.\n"); - goto out; - } - ldom_domaining_enabled = 1; - err = 0; - -out: - mdesc_release(hp); - return err; -} - -core_initcall(ldc_init); diff --git a/arch/sparc64/kernel/mdesc.c b/arch/sparc64/kernel/mdesc.c deleted file mode 100644 index dde52bcf5c64..000000000000 --- a/arch/sparc64/kernel/mdesc.c +++ /dev/null @@ -1,916 +0,0 @@ -/* mdesc.c: Sun4V machine description handling. - * - * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net> - */ -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/lmb.h> -#include <linux/log2.h> -#include <linux/list.h> -#include <linux/slab.h> -#include <linux/mm.h> -#include <linux/miscdevice.h> - -#include <asm/hypervisor.h> -#include <asm/mdesc.h> -#include <asm/prom.h> -#include <asm/oplib.h> -#include <asm/smp.h> - -/* Unlike the OBP device tree, the machine description is a full-on - * DAG. An arbitrary number of ARCs are possible from one - * node to other nodes and thus we can't use the OBP device_node - * data structure to represent these nodes inside of the kernel. - * - * Actually, it isn't even a DAG, because there are back pointers - * which create cycles in the graph. - * - * mdesc_hdr and mdesc_elem describe the layout of the data structure - * we get from the Hypervisor. - */ -struct mdesc_hdr { - u32 version; /* Transport version */ - u32 node_sz; /* node block size */ - u32 name_sz; /* name block size */ - u32 data_sz; /* data block size */ -} __attribute__((aligned(16))); - -struct mdesc_elem { - u8 tag; -#define MD_LIST_END 0x00 -#define MD_NODE 0x4e -#define MD_NODE_END 0x45 -#define MD_NOOP 0x20 -#define MD_PROP_ARC 0x61 -#define MD_PROP_VAL 0x76 -#define MD_PROP_STR 0x73 -#define MD_PROP_DATA 0x64 - u8 name_len; - u16 resv; - u32 name_offset; - union { - struct { - u32 data_len; - u32 data_offset; - } data; - u64 val; - } d; -}; - -struct mdesc_mem_ops { - struct mdesc_handle *(*alloc)(unsigned int mdesc_size); - void (*free)(struct mdesc_handle *handle); -}; - -struct mdesc_handle { - struct list_head list; - struct mdesc_mem_ops *mops; - void *self_base; - atomic_t refcnt; - unsigned int handle_size; - struct mdesc_hdr mdesc; -}; - -static void mdesc_handle_init(struct mdesc_handle *hp, - unsigned int handle_size, - void *base) -{ - BUG_ON(((unsigned long)&hp->mdesc) & (16UL - 1)); - - memset(hp, 0, handle_size); - INIT_LIST_HEAD(&hp->list); - hp->self_base = base; - atomic_set(&hp->refcnt, 1); - hp->handle_size = handle_size; -} - -static struct mdesc_handle * __init mdesc_lmb_alloc(unsigned int mdesc_size) -{ - unsigned int handle_size, alloc_size; - struct mdesc_handle *hp; - unsigned long paddr; - - handle_size = (sizeof(struct mdesc_handle) - - sizeof(struct mdesc_hdr) + - mdesc_size); - alloc_size = PAGE_ALIGN(handle_size); - - paddr = lmb_alloc(alloc_size, PAGE_SIZE); - - hp = NULL; - if (paddr) { - hp = __va(paddr); - mdesc_handle_init(hp, handle_size, hp); - } - return hp; -} - -static void mdesc_lmb_free(struct mdesc_handle *hp) -{ - unsigned int alloc_size, handle_size = hp->handle_size; - unsigned long start, end; - - BUG_ON(atomic_read(&hp->refcnt) != 0); - BUG_ON(!list_empty(&hp->list)); - - alloc_size = PAGE_ALIGN(handle_size); - - start = (unsigned long) hp; - end = start + alloc_size; - - while (start < end) { - struct page *p; - - p = virt_to_page(start); - ClearPageReserved(p); - __free_page(p); - start += PAGE_SIZE; - } -} - -static struct mdesc_mem_ops lmb_mdesc_ops = { - .alloc = mdesc_lmb_alloc, - .free = mdesc_lmb_free, -}; - -static struct mdesc_handle *mdesc_kmalloc(unsigned int mdesc_size) -{ - unsigned int handle_size; - void *base; - - handle_size = (sizeof(struct mdesc_handle) - - sizeof(struct mdesc_hdr) + - mdesc_size); - - base = kmalloc(handle_size + 15, GFP_KERNEL | __GFP_NOFAIL); - if (base) { - struct mdesc_handle *hp; - unsigned long addr; - - addr = (unsigned long)base; - addr = (addr + 15UL) & ~15UL; - hp = (struct mdesc_handle *) addr; - - mdesc_handle_init(hp, handle_size, base); - return hp; - } - - return NULL; -} - -static void mdesc_kfree(struct mdesc_handle *hp) -{ - BUG_ON(atomic_read(&hp->refcnt) != 0); - BUG_ON(!list_empty(&hp->list)); - - kfree(hp->self_base); -} - -static struct mdesc_mem_ops kmalloc_mdesc_memops = { - .alloc = mdesc_kmalloc, - .free = mdesc_kfree, -}; - -static struct mdesc_handle *mdesc_alloc(unsigned int mdesc_size, - struct mdesc_mem_ops *mops) -{ - struct mdesc_handle *hp = mops->alloc(mdesc_size); - - if (hp) - hp->mops = mops; - - return hp; -} - -static void mdesc_free(struct mdesc_handle *hp) -{ - hp->mops->free(hp); -} - -static struct mdesc_handle *cur_mdesc; -static LIST_HEAD(mdesc_zombie_list); -static DEFINE_SPINLOCK(mdesc_lock); - -struct mdesc_handle *mdesc_grab(void) -{ - struct mdesc_handle *hp; - unsigned long flags; - - spin_lock_irqsave(&mdesc_lock, flags); - hp = cur_mdesc; - if (hp) - atomic_inc(&hp->refcnt); - spin_unlock_irqrestore(&mdesc_lock, flags); - - return hp; -} -EXPORT_SYMBOL(mdesc_grab); - -void mdesc_release(struct mdesc_handle *hp) -{ - unsigned long flags; - - spin_lock_irqsave(&mdesc_lock, flags); - if (atomic_dec_and_test(&hp->refcnt)) { - list_del_init(&hp->list); - hp->mops->free(hp); - } - spin_unlock_irqrestore(&mdesc_lock, flags); -} -EXPORT_SYMBOL(mdesc_release); - -static DEFINE_MUTEX(mdesc_mutex); -static struct mdesc_notifier_client *client_list; - -void mdesc_register_notifier(struct mdesc_notifier_client *client) -{ - u64 node; - - mutex_lock(&mdesc_mutex); - client->next = client_list; - client_list = client; - - mdesc_for_each_node_by_name(cur_mdesc, node, client->node_name) - client->add(cur_mdesc, node); - - mutex_unlock(&mdesc_mutex); -} - -static const u64 *parent_cfg_handle(struct mdesc_handle *hp, u64 node) -{ - const u64 *id; - u64 a; - - id = NULL; - mdesc_for_each_arc(a, hp, node, MDESC_ARC_TYPE_BACK) { - u64 target; - - target = mdesc_arc_target(hp, a); - id = mdesc_get_property(hp, target, - "cfg-handle", NULL); - if (id) - break; - } - - return id; -} - -/* Run 'func' on nodes which are in A but not in B. */ -static void invoke_on_missing(const char *name, - struct mdesc_handle *a, - struct mdesc_handle *b, - void (*func)(struct mdesc_handle *, u64)) -{ - u64 node; - - mdesc_for_each_node_by_name(a, node, name) { - int found = 0, is_vdc_port = 0; - const char *name_prop; - const u64 *id; - u64 fnode; - - name_prop = mdesc_get_property(a, node, "name", NULL); - if (name_prop && !strcmp(name_prop, "vdc-port")) { - is_vdc_port = 1; - id = parent_cfg_handle(a, node); - } else - id = mdesc_get_property(a, node, "id", NULL); - - if (!id) { - printk(KERN_ERR "MD: Cannot find ID for %s node.\n", - (name_prop ? name_prop : name)); - continue; - } - - mdesc_for_each_node_by_name(b, fnode, name) { - const u64 *fid; - - if (is_vdc_port) { - name_prop = mdesc_get_property(b, fnode, - "name", NULL); - if (!name_prop || - strcmp(name_prop, "vdc-port")) - continue; - fid = parent_cfg_handle(b, fnode); - if (!fid) { - printk(KERN_ERR "MD: Cannot find ID " - "for vdc-port node.\n"); - continue; - } - } else - fid = mdesc_get_property(b, fnode, - "id", NULL); - - if (*id == *fid) { - found = 1; - break; - } - } - if (!found) - func(a, node); - } -} - -static void notify_one(struct mdesc_notifier_client *p, - struct mdesc_handle *old_hp, - struct mdesc_handle *new_hp) -{ - invoke_on_missing(p->node_name, old_hp, new_hp, p->remove); - invoke_on_missing(p->node_name, new_hp, old_hp, p->add); -} - -static void mdesc_notify_clients(struct mdesc_handle *old_hp, - struct mdesc_handle *new_hp) -{ - struct mdesc_notifier_client *p = client_list; - - while (p) { - notify_one(p, old_hp, new_hp); - p = p->next; - } -} - -void mdesc_update(void) -{ - unsigned long len, real_len, status; - struct mdesc_handle *hp, *orig_hp; - unsigned long flags; - - mutex_lock(&mdesc_mutex); - - (void) sun4v_mach_desc(0UL, 0UL, &len); - - hp = mdesc_alloc(len, &kmalloc_mdesc_memops); - if (!hp) { - printk(KERN_ERR "MD: mdesc alloc fails\n"); - goto out; - } - - status = sun4v_mach_desc(__pa(&hp->mdesc), len, &real_len); - if (status != HV_EOK || real_len > len) { - printk(KERN_ERR "MD: mdesc reread fails with %lu\n", - status); - atomic_dec(&hp->refcnt); - mdesc_free(hp); - goto out; - } - - spin_lock_irqsave(&mdesc_lock, flags); - orig_hp = cur_mdesc; - cur_mdesc = hp; - spin_unlock_irqrestore(&mdesc_lock, flags); - - mdesc_notify_clients(orig_hp, hp); - - spin_lock_irqsave(&mdesc_lock, flags); - if (atomic_dec_and_test(&orig_hp->refcnt)) - mdesc_free(orig_hp); - else - list_add(&orig_hp->list, &mdesc_zombie_list); - spin_unlock_irqrestore(&mdesc_lock, flags); - -out: - mutex_unlock(&mdesc_mutex); -} - -static struct mdesc_elem *node_block(struct mdesc_hdr *mdesc) -{ - return (struct mdesc_elem *) (mdesc + 1); -} - -static void *name_block(struct mdesc_hdr *mdesc) -{ - return ((void *) node_block(mdesc)) + mdesc->node_sz; -} - -static void *data_block(struct mdesc_hdr *mdesc) -{ - return ((void *) name_block(mdesc)) + mdesc->name_sz; -} - -u64 mdesc_node_by_name(struct mdesc_handle *hp, - u64 from_node, const char *name) -{ - struct mdesc_elem *ep = node_block(&hp->mdesc); - const char *names = name_block(&hp->mdesc); - u64 last_node = hp->mdesc.node_sz / 16; - u64 ret; - - if (from_node == MDESC_NODE_NULL) { - ret = from_node = 0; - } else if (from_node >= last_node) { - return MDESC_NODE_NULL; - } else { - ret = ep[from_node].d.val; - } - - while (ret < last_node) { - if (ep[ret].tag != MD_NODE) - return MDESC_NODE_NULL; - if (!strcmp(names + ep[ret].name_offset, name)) - break; - ret = ep[ret].d.val; - } - if (ret >= last_node) - ret = MDESC_NODE_NULL; - return ret; -} -EXPORT_SYMBOL(mdesc_node_by_name); - -const void *mdesc_get_property(struct mdesc_handle *hp, u64 node, - const char *name, int *lenp) -{ - const char *names = name_block(&hp->mdesc); - u64 last_node = hp->mdesc.node_sz / 16; - void *data = data_block(&hp->mdesc); - struct mdesc_elem *ep; - - if (node == MDESC_NODE_NULL || node >= last_node) - return NULL; - - ep = node_block(&hp->mdesc) + node; - ep++; - for (; ep->tag != MD_NODE_END; ep++) { - void *val = NULL; - int len = 0; - - switch (ep->tag) { - case MD_PROP_VAL: - val = &ep->d.val; - len = 8; - break; - - case MD_PROP_STR: - case MD_PROP_DATA: - val = data + ep->d.data.data_offset; - len = ep->d.data.data_len; - break; - - default: - break; - } - if (!val) - continue; - - if (!strcmp(names + ep->name_offset, name)) { - if (lenp) - *lenp = len; - return val; - } - } - - return NULL; -} -EXPORT_SYMBOL(mdesc_get_property); - -u64 mdesc_next_arc(struct mdesc_handle *hp, u64 from, const char *arc_type) -{ - struct mdesc_elem *ep, *base = node_block(&hp->mdesc); - const char *names = name_block(&hp->mdesc); - u64 last_node = hp->mdesc.node_sz / 16; - - if (from == MDESC_NODE_NULL || from >= last_node) - return MDESC_NODE_NULL; - - ep = base + from; - - ep++; - for (; ep->tag != MD_NODE_END; ep++) { - if (ep->tag != MD_PROP_ARC) - continue; - - if (strcmp(names + ep->name_offset, arc_type)) - continue; - - return ep - base; - } - - return MDESC_NODE_NULL; -} -EXPORT_SYMBOL(mdesc_next_arc); - -u64 mdesc_arc_target(struct mdesc_handle *hp, u64 arc) -{ - struct mdesc_elem *ep, *base = node_block(&hp->mdesc); - - ep = base + arc; - - return ep->d.val; -} -EXPORT_SYMBOL(mdesc_arc_target); - -const char *mdesc_node_name(struct mdesc_handle *hp, u64 node) -{ - struct mdesc_elem *ep, *base = node_block(&hp->mdesc); - const char *names = name_block(&hp->mdesc); - u64 last_node = hp->mdesc.node_sz / 16; - - if (node == MDESC_NODE_NULL || node >= last_node) - return NULL; - - ep = base + node; - if (ep->tag != MD_NODE) - return NULL; - - return names + ep->name_offset; -} -EXPORT_SYMBOL(mdesc_node_name); - -static void __init report_platform_properties(void) -{ - struct mdesc_handle *hp = mdesc_grab(); - u64 pn = mdesc_node_by_name(hp, MDESC_NODE_NULL, "platform"); - const char *s; - const u64 *v; - - if (pn == MDESC_NODE_NULL) { - prom_printf("No platform node in machine-description.\n"); - prom_halt(); - } - - s = mdesc_get_property(hp, pn, "banner-name", NULL); - printk("PLATFORM: banner-name [%s]\n", s); - s = mdesc_get_property(hp, pn, "name", NULL); - printk("PLATFORM: name [%s]\n", s); - - v = mdesc_get_property(hp, pn, "hostid", NULL); - if (v) - printk("PLATFORM: hostid [%08lx]\n", *v); - v = mdesc_get_property(hp, pn, "serial#", NULL); - if (v) - printk("PLATFORM: serial# [%08lx]\n", *v); - v = mdesc_get_property(hp, pn, "stick-frequency", NULL); - printk("PLATFORM: stick-frequency [%08lx]\n", *v); - v = mdesc_get_property(hp, pn, "mac-address", NULL); - if (v) - printk("PLATFORM: mac-address [%lx]\n", *v); - v = mdesc_get_property(hp, pn, "watchdog-resolution", NULL); - if (v) - printk("PLATFORM: watchdog-resolution [%lu ms]\n", *v); - v = mdesc_get_property(hp, pn, "watchdog-max-timeout", NULL); - if (v) - printk("PLATFORM: watchdog-max-timeout [%lu ms]\n", *v); - v = mdesc_get_property(hp, pn, "max-cpus", NULL); - if (v) - printk("PLATFORM: max-cpus [%lu]\n", *v); - -#ifdef CONFIG_SMP - { - int max_cpu, i; - - if (v) { - max_cpu = *v; - if (max_cpu > NR_CPUS) - max_cpu = NR_CPUS; - } else { - max_cpu = NR_CPUS; - } - for (i = 0; i < max_cpu; i++) - cpu_set(i, cpu_possible_map); - } -#endif - - mdesc_release(hp); -} - -static void __devinit fill_in_one_cache(cpuinfo_sparc *c, - struct mdesc_handle *hp, - u64 mp) -{ - const u64 *level = mdesc_get_property(hp, mp, "level", NULL); - const u64 *size = mdesc_get_property(hp, mp, "size", NULL); - const u64 *line_size = mdesc_get_property(hp, mp, "line-size", NULL); - const char *type; - int type_len; - - type = mdesc_get_property(hp, mp, "type", &type_len); - - switch (*level) { - case 1: - if (of_find_in_proplist(type, "instn", type_len)) { - c->icache_size = *size; - c->icache_line_size = *line_size; - } else if (of_find_in_proplist(type, "data", type_len)) { - c->dcache_size = *size; - c->dcache_line_size = *line_size; - } - break; - - case 2: - c->ecache_size = *size; - c->ecache_line_size = *line_size; - break; - - default: - break; - } - - if (*level == 1) { - u64 a; - - mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_FWD) { - u64 target = mdesc_arc_target(hp, a); - const char *name = mdesc_node_name(hp, target); - - if (!strcmp(name, "cache")) - fill_in_one_cache(c, hp, target); - } - } -} - -static void __devinit mark_core_ids(struct mdesc_handle *hp, u64 mp, - int core_id) -{ - u64 a; - - mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_BACK) { - u64 t = mdesc_arc_target(hp, a); - const char *name; - const u64 *id; - - name = mdesc_node_name(hp, t); - if (!strcmp(name, "cpu")) { - id = mdesc_get_property(hp, t, "id", NULL); - if (*id < NR_CPUS) - cpu_data(*id).core_id = core_id; - } else { - u64 j; - - mdesc_for_each_arc(j, hp, t, MDESC_ARC_TYPE_BACK) { - u64 n = mdesc_arc_target(hp, j); - const char *n_name; - - n_name = mdesc_node_name(hp, n); - if (strcmp(n_name, "cpu")) - continue; - - id = mdesc_get_property(hp, n, "id", NULL); - if (*id < NR_CPUS) - cpu_data(*id).core_id = core_id; - } - } - } -} - -static void __devinit set_core_ids(struct mdesc_handle *hp) -{ - int idx; - u64 mp; - - idx = 1; - mdesc_for_each_node_by_name(hp, mp, "cache") { - const u64 *level; - const char *type; - int len; - - level = mdesc_get_property(hp, mp, "level", NULL); - if (*level != 1) - continue; - - type = mdesc_get_property(hp, mp, "type", &len); - if (!of_find_in_proplist(type, "instn", len)) - continue; - - mark_core_ids(hp, mp, idx); - - idx++; - } -} - -static void __devinit mark_proc_ids(struct mdesc_handle *hp, u64 mp, - int proc_id) -{ - u64 a; - - mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_BACK) { - u64 t = mdesc_arc_target(hp, a); - const char *name; - const u64 *id; - - name = mdesc_node_name(hp, t); - if (strcmp(name, "cpu")) - continue; - - id = mdesc_get_property(hp, t, "id", NULL); - if (*id < NR_CPUS) - cpu_data(*id).proc_id = proc_id; - } -} - -static void __devinit __set_proc_ids(struct mdesc_handle *hp, - const char *exec_unit_name) -{ - int idx; - u64 mp; - - idx = 0; - mdesc_for_each_node_by_name(hp, mp, exec_unit_name) { - const char *type; - int len; - - type = mdesc_get_property(hp, mp, "type", &len); - if (!of_find_in_proplist(type, "int", len) && - !of_find_in_proplist(type, "integer", len)) - continue; - - mark_proc_ids(hp, mp, idx); - - idx++; - } -} - -static void __devinit set_proc_ids(struct mdesc_handle *hp) -{ - __set_proc_ids(hp, "exec_unit"); - __set_proc_ids(hp, "exec-unit"); -} - -static void __devinit get_one_mondo_bits(const u64 *p, unsigned int *mask, - unsigned char def) -{ - u64 val; - - if (!p) - goto use_default; - val = *p; - - if (!val || val >= 64) - goto use_default; - - *mask = ((1U << val) * 64U) - 1U; - return; - -use_default: - *mask = ((1U << def) * 64U) - 1U; -} - -static void __devinit get_mondo_data(struct mdesc_handle *hp, u64 mp, - struct trap_per_cpu *tb) -{ - const u64 *val; - - val = mdesc_get_property(hp, mp, "q-cpu-mondo-#bits", NULL); - get_one_mondo_bits(val, &tb->cpu_mondo_qmask, 7); - - val = mdesc_get_property(hp, mp, "q-dev-mondo-#bits", NULL); - get_one_mondo_bits(val, &tb->dev_mondo_qmask, 7); - - val = mdesc_get_property(hp, mp, "q-resumable-#bits", NULL); - get_one_mondo_bits(val, &tb->resum_qmask, 6); - - val = mdesc_get_property(hp, mp, "q-nonresumable-#bits", NULL); - get_one_mondo_bits(val, &tb->nonresum_qmask, 2); -} - -void __cpuinit mdesc_fill_in_cpu_data(cpumask_t mask) -{ - struct mdesc_handle *hp = mdesc_grab(); - u64 mp; - - ncpus_probed = 0; - mdesc_for_each_node_by_name(hp, mp, "cpu") { - const u64 *id = mdesc_get_property(hp, mp, "id", NULL); - const u64 *cfreq = mdesc_get_property(hp, mp, "clock-frequency", NULL); - struct trap_per_cpu *tb; - cpuinfo_sparc *c; - int cpuid; - u64 a; - - ncpus_probed++; - - cpuid = *id; - -#ifdef CONFIG_SMP - if (cpuid >= NR_CPUS) { - printk(KERN_WARNING "Ignoring CPU %d which is " - ">= NR_CPUS (%d)\n", - cpuid, NR_CPUS); - continue; - } - if (!cpu_isset(cpuid, mask)) - continue; -#else - /* On uniprocessor we only want the values for the - * real physical cpu the kernel booted onto, however - * cpu_data() only has one entry at index 0. - */ - if (cpuid != real_hard_smp_processor_id()) - continue; - cpuid = 0; -#endif - - c = &cpu_data(cpuid); - c->clock_tick = *cfreq; - - tb = &trap_block[cpuid]; - get_mondo_data(hp, mp, tb); - - mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_FWD) { - u64 j, t = mdesc_arc_target(hp, a); - const char *t_name; - - t_name = mdesc_node_name(hp, t); - if (!strcmp(t_name, "cache")) { - fill_in_one_cache(c, hp, t); - continue; - } - - mdesc_for_each_arc(j, hp, t, MDESC_ARC_TYPE_FWD) { - u64 n = mdesc_arc_target(hp, j); - const char *n_name; - - n_name = mdesc_node_name(hp, n); - if (!strcmp(n_name, "cache")) - fill_in_one_cache(c, hp, n); - } - } - -#ifdef CONFIG_SMP - cpu_set(cpuid, cpu_present_map); -#endif - - c->core_id = 0; - c->proc_id = -1; - } - -#ifdef CONFIG_SMP - sparc64_multi_core = 1; -#endif - - set_core_ids(hp); - set_proc_ids(hp); - - smp_fill_in_sib_core_maps(); - - mdesc_release(hp); -} - -static ssize_t mdesc_read(struct file *file, char __user *buf, - size_t len, loff_t *offp) -{ - struct mdesc_handle *hp = mdesc_grab(); - int err; - - if (!hp) - return -ENODEV; - - err = hp->handle_size; - if (len < hp->handle_size) - err = -EMSGSIZE; - else if (copy_to_user(buf, &hp->mdesc, hp->handle_size)) - err = -EFAULT; - mdesc_release(hp); - - return err; -} - -static const struct file_operations mdesc_fops = { - .read = mdesc_read, - .owner = THIS_MODULE, -}; - -static struct miscdevice mdesc_misc = { - .minor = MISC_DYNAMIC_MINOR, - .name = "mdesc", - .fops = &mdesc_fops, -}; - -static int __init mdesc_misc_init(void) -{ - return misc_register(&mdesc_misc); -} - -__initcall(mdesc_misc_init); - -void __init sun4v_mdesc_init(void) -{ - struct mdesc_handle *hp; - unsigned long len, real_len, status; - cpumask_t mask; - - (void) sun4v_mach_desc(0UL, 0UL, &len); - - printk("MDESC: Size is %lu bytes.\n", len); - - hp = mdesc_alloc(len, &lmb_mdesc_ops); - if (hp == NULL) { - prom_printf("MDESC: alloc of %lu bytes failed.\n", len); - prom_halt(); - } - - status = sun4v_mach_desc(__pa(&hp->mdesc), len, &real_len); - if (status != HV_EOK || real_len > len) { - prom_printf("sun4v_mach_desc fails, err(%lu), " - "len(%lu), real_len(%lu)\n", - status, len, real_len); - mdesc_free(hp); - prom_halt(); - } - - cur_mdesc = hp; - - report_platform_properties(); - - cpus_setall(mask); - mdesc_fill_in_cpu_data(mask); -} diff --git a/arch/sparc64/kernel/misctrap.S b/arch/sparc64/kernel/misctrap.S deleted file mode 100644 index 753b4f031bfb..000000000000 --- a/arch/sparc64/kernel/misctrap.S +++ /dev/null @@ -1,97 +0,0 @@ -#ifdef CONFIG_KGDB - .globl arch_kgdb_breakpoint - .type arch_kgdb_breakpoint,#function -arch_kgdb_breakpoint: - ta 0x72 - retl - nop - .size arch_kgdb_breakpoint,.-arch_kgdb_breakpoint -#endif - - .type __do_privact,#function -__do_privact: - mov TLB_SFSR, %g3 - stxa %g0, [%g3] ASI_DMMU ! Clear FaultValid bit - membar #Sync - sethi %hi(109f), %g7 - ba,pt %xcc, etrap -109: or %g7, %lo(109b), %g7 - call do_privact - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - .size __do_privact,.-__do_privact - - .type do_mna,#function -do_mna: - rdpr %tl, %g3 - cmp %g3, 1 - - /* Setup %g4/%g5 now as they are used in the - * winfixup code. - */ - mov TLB_SFSR, %g3 - mov DMMU_SFAR, %g4 - ldxa [%g4] ASI_DMMU, %g4 - ldxa [%g3] ASI_DMMU, %g5 - stxa %g0, [%g3] ASI_DMMU ! Clear FaultValid bit - membar #Sync - bgu,pn %icc, winfix_mna - rdpr %tpc, %g3 - -1: sethi %hi(109f), %g7 - ba,pt %xcc, etrap -109: or %g7, %lo(109b), %g7 - mov %l4, %o1 - mov %l5, %o2 - call mem_address_unaligned - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - .size do_mna,.-do_mna - - .type do_lddfmna,#function -do_lddfmna: - sethi %hi(109f), %g7 - mov TLB_SFSR, %g4 - ldxa [%g4] ASI_DMMU, %g5 - stxa %g0, [%g4] ASI_DMMU ! Clear FaultValid bit - membar #Sync - mov DMMU_SFAR, %g4 - ldxa [%g4] ASI_DMMU, %g4 - ba,pt %xcc, etrap -109: or %g7, %lo(109b), %g7 - mov %l4, %o1 - mov %l5, %o2 - call handle_lddfmna - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - .size do_lddfmna,.-do_lddfmna - - .type do_stdfmna,#function -do_stdfmna: - sethi %hi(109f), %g7 - mov TLB_SFSR, %g4 - ldxa [%g4] ASI_DMMU, %g5 - stxa %g0, [%g4] ASI_DMMU ! Clear FaultValid bit - membar #Sync - mov DMMU_SFAR, %g4 - ldxa [%g4] ASI_DMMU, %g4 - ba,pt %xcc, etrap -109: or %g7, %lo(109b), %g7 - mov %l4, %o1 - mov %l5, %o2 - call handle_stdfmna - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - .size do_stdfmna,.-do_stdfmna - - .type breakpoint_trap,#function -breakpoint_trap: - call sparc_breakpoint - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - .size breakpoint_trap,.-breakpoint_trap diff --git a/arch/sparc64/kernel/module.c b/arch/sparc64/kernel/module.c deleted file mode 100644 index 158484bf5999..000000000000 --- a/arch/sparc64/kernel/module.c +++ /dev/null @@ -1,213 +0,0 @@ -/* Kernel module help for sparc64. - * - * Copyright (C) 2001 Rusty Russell. - * Copyright (C) 2002 David S. Miller. - */ - -#include <linux/moduleloader.h> -#include <linux/kernel.h> -#include <linux/elf.h> -#include <linux/vmalloc.h> -#include <linux/fs.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/mm.h> - -#include <asm/processor.h> -#include <asm/spitfire.h> - -static void *module_map(unsigned long size) -{ - struct vm_struct *area; - - size = PAGE_ALIGN(size); - if (!size || size > MODULES_LEN) - return NULL; - - area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END); - if (!area) - return NULL; - - return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL); -} - -void *module_alloc(unsigned long size) -{ - void *ret; - - /* We handle the zero case fine, unlike vmalloc */ - if (size == 0) - return NULL; - - ret = module_map(size); - if (!ret) - ret = ERR_PTR(-ENOMEM); - else - memset(ret, 0, size); - - return ret; -} - -/* Free memory returned from module_core_alloc/module_init_alloc */ -void module_free(struct module *mod, void *module_region) -{ - vfree(module_region); - /* FIXME: If module_region == mod->init_region, trim exception - table entries. */ -} - -/* Make generic code ignore STT_REGISTER dummy undefined symbols. */ -int module_frob_arch_sections(Elf_Ehdr *hdr, - Elf_Shdr *sechdrs, - char *secstrings, - struct module *mod) -{ - unsigned int symidx; - Elf64_Sym *sym; - const char *strtab; - int i; - - for (symidx = 0; sechdrs[symidx].sh_type != SHT_SYMTAB; symidx++) { - if (symidx == hdr->e_shnum-1) { - printk("%s: no symtab found.\n", mod->name); - return -ENOEXEC; - } - } - sym = (Elf64_Sym *)sechdrs[symidx].sh_addr; - strtab = (char *)sechdrs[sechdrs[symidx].sh_link].sh_addr; - - for (i = 1; i < sechdrs[symidx].sh_size / sizeof(Elf_Sym); i++) { - if (sym[i].st_shndx == SHN_UNDEF && - ELF64_ST_TYPE(sym[i].st_info) == STT_REGISTER) - sym[i].st_shndx = SHN_ABS; - } - return 0; -} - -int apply_relocate(Elf64_Shdr *sechdrs, - const char *strtab, - unsigned int symindex, - unsigned int relsec, - struct module *me) -{ - printk(KERN_ERR "module %s: non-ADD RELOCATION unsupported\n", - me->name); - return -ENOEXEC; -} - -int apply_relocate_add(Elf64_Shdr *sechdrs, - const char *strtab, - unsigned int symindex, - unsigned int relsec, - struct module *me) -{ - unsigned int i; - Elf64_Rela *rel = (void *)sechdrs[relsec].sh_addr; - Elf64_Sym *sym; - u8 *location; - u32 *loc32; - - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { - Elf64_Addr v; - - /* This is where to make the change */ - location = (u8 *)sechdrs[sechdrs[relsec].sh_info].sh_addr - + rel[i].r_offset; - loc32 = (u32 *) location; - - BUG_ON(((u64)location >> (u64)32) != (u64)0); - - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - sym = (Elf64_Sym *)sechdrs[symindex].sh_addr - + ELF64_R_SYM(rel[i].r_info); - v = sym->st_value + rel[i].r_addend; - - switch (ELF64_R_TYPE(rel[i].r_info) & 0xff) { - case R_SPARC_64: - location[0] = v >> 56; - location[1] = v >> 48; - location[2] = v >> 40; - location[3] = v >> 32; - location[4] = v >> 24; - location[5] = v >> 16; - location[6] = v >> 8; - location[7] = v >> 0; - break; - - case R_SPARC_32: - location[0] = v >> 24; - location[1] = v >> 16; - location[2] = v >> 8; - location[3] = v >> 0; - break; - - case R_SPARC_DISP32: - v -= (Elf64_Addr) location; - *loc32 = v; - break; - - case R_SPARC_WDISP30: - v -= (Elf64_Addr) location; - *loc32 = (*loc32 & ~0x3fffffff) | - ((v >> 2) & 0x3fffffff); - break; - - case R_SPARC_WDISP22: - v -= (Elf64_Addr) location; - *loc32 = (*loc32 & ~0x3fffff) | - ((v >> 2) & 0x3fffff); - break; - - case R_SPARC_WDISP19: - v -= (Elf64_Addr) location; - *loc32 = (*loc32 & ~0x7ffff) | - ((v >> 2) & 0x7ffff); - break; - - case R_SPARC_LO10: - *loc32 = (*loc32 & ~0x3ff) | (v & 0x3ff); - break; - - case R_SPARC_HI22: - *loc32 = (*loc32 & ~0x3fffff) | - ((v >> 10) & 0x3fffff); - break; - - case R_SPARC_OLO10: - *loc32 = (*loc32 & ~0x1fff) | - (((v & 0x3ff) + - (ELF64_R_TYPE(rel[i].r_info) >> 8)) - & 0x1fff); - break; - - default: - printk(KERN_ERR "module %s: Unknown relocation: %x\n", - me->name, - (int) (ELF64_R_TYPE(rel[i].r_info) & 0xff)); - return -ENOEXEC; - }; - } - return 0; -} - -int module_finalize(const Elf_Ehdr *hdr, - const Elf_Shdr *sechdrs, - struct module *me) -{ - /* Cheetah's I-cache is fully coherent. */ - if (tlb_type == spitfire) { - unsigned long va; - - flushw_all(); - for (va = 0; va < (PAGE_SIZE << 1); va += 32) - spitfire_put_icache_tag(va, 0x0); - __asm__ __volatile__("flush %g6"); - } - - return 0; -} - -void module_arch_cleanup(struct module *mod) -{ -} diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c deleted file mode 100644 index 0f616ae3246c..000000000000 --- a/arch/sparc64/kernel/of_device.c +++ /dev/null @@ -1,898 +0,0 @@ -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/of.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/mod_devicetable.h> -#include <linux/slab.h> -#include <linux/errno.h> -#include <linux/irq.h> -#include <linux/of_device.h> -#include <linux/of_platform.h> - -void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name) -{ - unsigned long ret = res->start + offset; - struct resource *r; - - if (res->flags & IORESOURCE_MEM) - r = request_mem_region(ret, size, name); - else - r = request_region(ret, size, name); - if (!r) - ret = 0; - - return (void __iomem *) ret; -} -EXPORT_SYMBOL(of_ioremap); - -void of_iounmap(struct resource *res, void __iomem *base, unsigned long size) -{ - if (res->flags & IORESOURCE_MEM) - release_mem_region((unsigned long) base, size); - else - release_region((unsigned long) base, size); -} -EXPORT_SYMBOL(of_iounmap); - -static int node_match(struct device *dev, void *data) -{ - struct of_device *op = to_of_device(dev); - struct device_node *dp = data; - - return (op->node == dp); -} - -struct of_device *of_find_device_by_node(struct device_node *dp) -{ - struct device *dev = bus_find_device(&of_platform_bus_type, NULL, - dp, node_match); - - if (dev) - return to_of_device(dev); - - return NULL; -} -EXPORT_SYMBOL(of_find_device_by_node); - -unsigned int irq_of_parse_and_map(struct device_node *node, int index) -{ - struct of_device *op = of_find_device_by_node(node); - - if (!op || index >= op->num_irqs) - return 0; - - return op->irqs[index]; -} -EXPORT_SYMBOL(irq_of_parse_and_map); - -/* Take the archdata values for IOMMU, STC, and HOSTDATA found in - * BUS and propagate to all child of_device objects. - */ -void of_propagate_archdata(struct of_device *bus) -{ - struct dev_archdata *bus_sd = &bus->dev.archdata; - struct device_node *bus_dp = bus->node; - struct device_node *dp; - - for (dp = bus_dp->child; dp; dp = dp->sibling) { - struct of_device *op = of_find_device_by_node(dp); - - op->dev.archdata.iommu = bus_sd->iommu; - op->dev.archdata.stc = bus_sd->stc; - op->dev.archdata.host_controller = bus_sd->host_controller; - op->dev.archdata.numa_node = bus_sd->numa_node; - - if (dp->child) - of_propagate_archdata(op); - } -} - -struct bus_type of_platform_bus_type; -EXPORT_SYMBOL(of_platform_bus_type); - -static inline u64 of_read_addr(const u32 *cell, int size) -{ - u64 r = 0; - while (size--) - r = (r << 32) | *(cell++); - return r; -} - -static void __init get_cells(struct device_node *dp, - int *addrc, int *sizec) -{ - if (addrc) - *addrc = of_n_addr_cells(dp); - if (sizec) - *sizec = of_n_size_cells(dp); -} - -/* Max address size we deal with */ -#define OF_MAX_ADDR_CELLS 4 - -struct of_bus { - const char *name; - const char *addr_prop_name; - int (*match)(struct device_node *parent); - void (*count_cells)(struct device_node *child, - int *addrc, int *sizec); - int (*map)(u32 *addr, const u32 *range, - int na, int ns, int pna); - unsigned long (*get_flags)(const u32 *addr, unsigned long); -}; - -/* - * Default translator (generic bus) - */ - -static void of_bus_default_count_cells(struct device_node *dev, - int *addrc, int *sizec) -{ - get_cells(dev, addrc, sizec); -} - -/* Make sure the least significant 64-bits are in-range. Even - * for 3 or 4 cell values it is a good enough approximation. - */ -static int of_out_of_range(const u32 *addr, const u32 *base, - const u32 *size, int na, int ns) -{ - u64 a = of_read_addr(addr, na); - u64 b = of_read_addr(base, na); - - if (a < b) - return 1; - - b += of_read_addr(size, ns); - if (a >= b) - return 1; - - return 0; -} - -static int of_bus_default_map(u32 *addr, const u32 *range, - int na, int ns, int pna) -{ - u32 result[OF_MAX_ADDR_CELLS]; - int i; - - if (ns > 2) { - printk("of_device: Cannot handle size cells (%d) > 2.", ns); - return -EINVAL; - } - - if (of_out_of_range(addr, range, range + na + pna, na, ns)) - return -EINVAL; - - /* Start with the parent range base. */ - memcpy(result, range + na, pna * 4); - - /* Add in the child address offset. */ - for (i = 0; i < na; i++) - result[pna - 1 - i] += - (addr[na - 1 - i] - - range[na - 1 - i]); - - memcpy(addr, result, pna * 4); - - return 0; -} - -static unsigned long of_bus_default_get_flags(const u32 *addr, unsigned long flags) -{ - if (flags) - return flags; - return IORESOURCE_MEM; -} - -/* - * PCI bus specific translator - */ - -static int of_bus_pci_match(struct device_node *np) -{ - if (!strcmp(np->name, "pci")) { - const char *model = of_get_property(np, "model", NULL); - - if (model && !strcmp(model, "SUNW,simba")) - return 0; - - /* Do not do PCI specific frobbing if the - * PCI bridge lacks a ranges property. We - * want to pass it through up to the next - * parent as-is, not with the PCI translate - * method which chops off the top address cell. - */ - if (!of_find_property(np, "ranges", NULL)) - return 0; - - return 1; - } - - return 0; -} - -static int of_bus_simba_match(struct device_node *np) -{ - const char *model = of_get_property(np, "model", NULL); - - if (model && !strcmp(model, "SUNW,simba")) - return 1; - - /* Treat PCI busses lacking ranges property just like - * simba. - */ - if (!strcmp(np->name, "pci")) { - if (!of_find_property(np, "ranges", NULL)) - return 1; - } - - return 0; -} - -static int of_bus_simba_map(u32 *addr, const u32 *range, - int na, int ns, int pna) -{ - return 0; -} - -static void of_bus_pci_count_cells(struct device_node *np, - int *addrc, int *sizec) -{ - if (addrc) - *addrc = 3; - if (sizec) - *sizec = 2; -} - -static int of_bus_pci_map(u32 *addr, const u32 *range, - int na, int ns, int pna) -{ - u32 result[OF_MAX_ADDR_CELLS]; - int i; - - /* Check address type match */ - if ((addr[0] ^ range[0]) & 0x03000000) - return -EINVAL; - - if (of_out_of_range(addr + 1, range + 1, range + na + pna, - na - 1, ns)) - return -EINVAL; - - /* Start with the parent range base. */ - memcpy(result, range + na, pna * 4); - - /* Add in the child address offset, skipping high cell. */ - for (i = 0; i < na - 1; i++) - result[pna - 1 - i] += - (addr[na - 1 - i] - - range[na - 1 - i]); - - memcpy(addr, result, pna * 4); - - return 0; -} - -static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags) -{ - u32 w = addr[0]; - - /* For PCI, we override whatever child busses may have used. */ - flags = 0; - switch((w >> 24) & 0x03) { - case 0x01: - flags |= IORESOURCE_IO; - break; - - case 0x02: /* 32 bits */ - case 0x03: /* 64 bits */ - flags |= IORESOURCE_MEM; - break; - } - if (w & 0x40000000) - flags |= IORESOURCE_PREFETCH; - return flags; -} - -/* - * SBUS bus specific translator - */ - -static int of_bus_sbus_match(struct device_node *np) -{ - return !strcmp(np->name, "sbus") || - !strcmp(np->name, "sbi"); -} - -static void of_bus_sbus_count_cells(struct device_node *child, - int *addrc, int *sizec) -{ - if (addrc) - *addrc = 2; - if (sizec) - *sizec = 1; -} - -/* - * FHC/Central bus specific translator. - * - * This is just needed to hard-code the address and size cell - * counts. 'fhc' and 'central' nodes lack the #address-cells and - * #size-cells properties, and if you walk to the root on such - * Enterprise boxes all you'll get is a #size-cells of 2 which is - * not what we want to use. - */ -static int of_bus_fhc_match(struct device_node *np) -{ - return !strcmp(np->name, "fhc") || - !strcmp(np->name, "central"); -} - -#define of_bus_fhc_count_cells of_bus_sbus_count_cells - -/* - * Array of bus specific translators - */ - -static struct of_bus of_busses[] = { - /* PCI */ - { - .name = "pci", - .addr_prop_name = "assigned-addresses", - .match = of_bus_pci_match, - .count_cells = of_bus_pci_count_cells, - .map = of_bus_pci_map, - .get_flags = of_bus_pci_get_flags, - }, - /* SIMBA */ - { - .name = "simba", - .addr_prop_name = "assigned-addresses", - .match = of_bus_simba_match, - .count_cells = of_bus_pci_count_cells, - .map = of_bus_simba_map, - .get_flags = of_bus_pci_get_flags, - }, - /* SBUS */ - { - .name = "sbus", - .addr_prop_name = "reg", - .match = of_bus_sbus_match, - .count_cells = of_bus_sbus_count_cells, - .map = of_bus_default_map, - .get_flags = of_bus_default_get_flags, - }, - /* FHC */ - { - .name = "fhc", - .addr_prop_name = "reg", - .match = of_bus_fhc_match, - .count_cells = of_bus_fhc_count_cells, - .map = of_bus_default_map, - .get_flags = of_bus_default_get_flags, - }, - /* Default */ - { - .name = "default", - .addr_prop_name = "reg", - .match = NULL, - .count_cells = of_bus_default_count_cells, - .map = of_bus_default_map, - .get_flags = of_bus_default_get_flags, - }, -}; - -static struct of_bus *of_match_bus(struct device_node *np) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(of_busses); i ++) - if (!of_busses[i].match || of_busses[i].match(np)) - return &of_busses[i]; - BUG(); - return NULL; -} - -static int __init build_one_resource(struct device_node *parent, - struct of_bus *bus, - struct of_bus *pbus, - u32 *addr, - int na, int ns, int pna) -{ - const u32 *ranges; - int rone, rlen; - - ranges = of_get_property(parent, "ranges", &rlen); - if (ranges == NULL || rlen == 0) { - u32 result[OF_MAX_ADDR_CELLS]; - int i; - - memset(result, 0, pna * 4); - for (i = 0; i < na; i++) - result[pna - 1 - i] = - addr[na - 1 - i]; - - memcpy(addr, result, pna * 4); - return 0; - } - - /* Now walk through the ranges */ - rlen /= 4; - rone = na + pna + ns; - for (; rlen >= rone; rlen -= rone, ranges += rone) { - if (!bus->map(addr, ranges, na, ns, pna)) - return 0; - } - - /* When we miss an I/O space match on PCI, just pass it up - * to the next PCI bridge and/or controller. - */ - if (!strcmp(bus->name, "pci") && - (addr[0] & 0x03000000) == 0x01000000) - return 0; - - return 1; -} - -static int __init use_1to1_mapping(struct device_node *pp) -{ - /* If we have a ranges property in the parent, use it. */ - if (of_find_property(pp, "ranges", NULL) != NULL) - return 0; - - /* If the parent is the dma node of an ISA bus, pass - * the translation up to the root. - * - * Some SBUS devices use intermediate nodes to express - * hierarchy within the device itself. These aren't - * real bus nodes, and don't have a 'ranges' property. - * But, we should still pass the translation work up - * to the SBUS itself. - */ - if (!strcmp(pp->name, "dma") || - !strcmp(pp->name, "espdma") || - !strcmp(pp->name, "ledma") || - !strcmp(pp->name, "lebuffer")) - return 0; - - /* Similarly for all PCI bridges, if we get this far - * it lacks a ranges property, and this will include - * cases like Simba. - */ - if (!strcmp(pp->name, "pci")) - return 0; - - return 1; -} - -static int of_resource_verbose; - -static void __init build_device_resources(struct of_device *op, - struct device *parent) -{ - struct of_device *p_op; - struct of_bus *bus; - int na, ns; - int index, num_reg; - const void *preg; - - if (!parent) - return; - - p_op = to_of_device(parent); - bus = of_match_bus(p_op->node); - bus->count_cells(op->node, &na, &ns); - - preg = of_get_property(op->node, bus->addr_prop_name, &num_reg); - if (!preg || num_reg == 0) - return; - - /* Convert to num-cells. */ - num_reg /= 4; - - /* Convert to num-entries. */ - num_reg /= na + ns; - - /* Prevent overrunning the op->resources[] array. */ - if (num_reg > PROMREG_MAX) { - printk(KERN_WARNING "%s: Too many regs (%d), " - "limiting to %d.\n", - op->node->full_name, num_reg, PROMREG_MAX); - num_reg = PROMREG_MAX; - } - - for (index = 0; index < num_reg; index++) { - struct resource *r = &op->resource[index]; - u32 addr[OF_MAX_ADDR_CELLS]; - const u32 *reg = (preg + (index * ((na + ns) * 4))); - struct device_node *dp = op->node; - struct device_node *pp = p_op->node; - struct of_bus *pbus, *dbus; - u64 size, result = OF_BAD_ADDR; - unsigned long flags; - int dna, dns; - int pna, pns; - - size = of_read_addr(reg + na, ns); - memcpy(addr, reg, na * 4); - - flags = bus->get_flags(addr, 0); - - if (use_1to1_mapping(pp)) { - result = of_read_addr(addr, na); - goto build_res; - } - - dna = na; - dns = ns; - dbus = bus; - - while (1) { - dp = pp; - pp = dp->parent; - if (!pp) { - result = of_read_addr(addr, dna); - break; - } - - pbus = of_match_bus(pp); - pbus->count_cells(dp, &pna, &pns); - - if (build_one_resource(dp, dbus, pbus, addr, - dna, dns, pna)) - break; - - flags = pbus->get_flags(addr, flags); - - dna = pna; - dns = pns; - dbus = pbus; - } - - build_res: - memset(r, 0, sizeof(*r)); - - if (of_resource_verbose) - printk("%s reg[%d] -> %lx\n", - op->node->full_name, index, - result); - - if (result != OF_BAD_ADDR) { - if (tlb_type == hypervisor) - result &= 0x0fffffffffffffffUL; - - r->start = result; - r->end = result + size - 1; - r->flags = flags; - } - r->name = op->node->name; - } -} - -static struct device_node * __init -apply_interrupt_map(struct device_node *dp, struct device_node *pp, - const u32 *imap, int imlen, const u32 *imask, - unsigned int *irq_p) -{ - struct device_node *cp; - unsigned int irq = *irq_p; - struct of_bus *bus; - phandle handle; - const u32 *reg; - int na, num_reg, i; - - bus = of_match_bus(pp); - bus->count_cells(dp, &na, NULL); - - reg = of_get_property(dp, "reg", &num_reg); - if (!reg || !num_reg) - return NULL; - - imlen /= ((na + 3) * 4); - handle = 0; - for (i = 0; i < imlen; i++) { - int j; - - for (j = 0; j < na; j++) { - if ((reg[j] & imask[j]) != imap[j]) - goto next; - } - if (imap[na] == irq) { - handle = imap[na + 1]; - irq = imap[na + 2]; - break; - } - - next: - imap += (na + 3); - } - if (i == imlen) { - /* Psycho and Sabre PCI controllers can have 'interrupt-map' - * properties that do not include the on-board device - * interrupts. Instead, the device's 'interrupts' property - * is already a fully specified INO value. - * - * Handle this by deciding that, if we didn't get a - * match in the parent's 'interrupt-map', and the - * parent is an IRQ translater, then use the parent as - * our IRQ controller. - */ - if (pp->irq_trans) - return pp; - - return NULL; - } - - *irq_p = irq; - cp = of_find_node_by_phandle(handle); - - return cp; -} - -static unsigned int __init pci_irq_swizzle(struct device_node *dp, - struct device_node *pp, - unsigned int irq) -{ - const struct linux_prom_pci_registers *regs; - unsigned int bus, devfn, slot, ret; - - if (irq < 1 || irq > 4) - return irq; - - regs = of_get_property(dp, "reg", NULL); - if (!regs) - return irq; - - bus = (regs->phys_hi >> 16) & 0xff; - devfn = (regs->phys_hi >> 8) & 0xff; - slot = (devfn >> 3) & 0x1f; - - if (pp->irq_trans) { - /* Derived from Table 8-3, U2P User's Manual. This branch - * is handling a PCI controller that lacks a proper set of - * interrupt-map and interrupt-map-mask properties. The - * Ultra-E450 is one example. - * - * The bit layout is BSSLL, where: - * B: 0 on bus A, 1 on bus B - * D: 2-bit slot number, derived from PCI device number as - * (dev - 1) for bus A, or (dev - 2) for bus B - * L: 2-bit line number - */ - if (bus & 0x80) { - /* PBM-A */ - bus = 0x00; - slot = (slot - 1) << 2; - } else { - /* PBM-B */ - bus = 0x10; - slot = (slot - 2) << 2; - } - irq -= 1; - - ret = (bus | slot | irq); - } else { - /* Going through a PCI-PCI bridge that lacks a set of - * interrupt-map and interrupt-map-mask properties. - */ - ret = ((irq - 1 + (slot & 3)) & 3) + 1; - } - - return ret; -} - -static int of_irq_verbose; - -static unsigned int __init build_one_device_irq(struct of_device *op, - struct device *parent, - unsigned int irq) -{ - struct device_node *dp = op->node; - struct device_node *pp, *ip; - unsigned int orig_irq = irq; - int nid; - - if (irq == 0xffffffff) - return irq; - - if (dp->irq_trans) { - irq = dp->irq_trans->irq_build(dp, irq, - dp->irq_trans->data); - - if (of_irq_verbose) - printk("%s: direct translate %x --> %x\n", - dp->full_name, orig_irq, irq); - - goto out; - } - - /* Something more complicated. Walk up to the root, applying - * interrupt-map or bus specific translations, until we hit - * an IRQ translator. - * - * If we hit a bus type or situation we cannot handle, we - * stop and assume that the original IRQ number was in a - * format which has special meaning to it's immediate parent. - */ - pp = dp->parent; - ip = NULL; - while (pp) { - const void *imap, *imsk; - int imlen; - - imap = of_get_property(pp, "interrupt-map", &imlen); - imsk = of_get_property(pp, "interrupt-map-mask", NULL); - if (imap && imsk) { - struct device_node *iret; - int this_orig_irq = irq; - - iret = apply_interrupt_map(dp, pp, - imap, imlen, imsk, - &irq); - - if (of_irq_verbose) - printk("%s: Apply [%s:%x] imap --> [%s:%x]\n", - op->node->full_name, - pp->full_name, this_orig_irq, - (iret ? iret->full_name : "NULL"), irq); - - if (!iret) - break; - - if (iret->irq_trans) { - ip = iret; - break; - } - } else { - if (!strcmp(pp->name, "pci")) { - unsigned int this_orig_irq = irq; - - irq = pci_irq_swizzle(dp, pp, irq); - if (of_irq_verbose) - printk("%s: PCI swizzle [%s] " - "%x --> %x\n", - op->node->full_name, - pp->full_name, this_orig_irq, - irq); - - } - - if (pp->irq_trans) { - ip = pp; - break; - } - } - dp = pp; - pp = pp->parent; - } - if (!ip) - return orig_irq; - - irq = ip->irq_trans->irq_build(op->node, irq, - ip->irq_trans->data); - if (of_irq_verbose) - printk("%s: Apply IRQ trans [%s] %x --> %x\n", - op->node->full_name, ip->full_name, orig_irq, irq); - -out: - nid = of_node_to_nid(dp); - if (nid != -1) { - cpumask_t numa_mask = node_to_cpumask(nid); - - irq_set_affinity(irq, numa_mask); - } - - return irq; -} - -static struct of_device * __init scan_one_device(struct device_node *dp, - struct device *parent) -{ - struct of_device *op = kzalloc(sizeof(*op), GFP_KERNEL); - const unsigned int *irq; - struct dev_archdata *sd; - int len, i; - - if (!op) - return NULL; - - sd = &op->dev.archdata; - sd->prom_node = dp; - sd->op = op; - - op->node = dp; - - op->clock_freq = of_getintprop_default(dp, "clock-frequency", - (25*1000*1000)); - op->portid = of_getintprop_default(dp, "upa-portid", -1); - if (op->portid == -1) - op->portid = of_getintprop_default(dp, "portid", -1); - - irq = of_get_property(dp, "interrupts", &len); - if (irq) { - memcpy(op->irqs, irq, len); - op->num_irqs = len / 4; - } else { - op->num_irqs = 0; - } - - /* Prevent overrunning the op->irqs[] array. */ - if (op->num_irqs > PROMINTR_MAX) { - printk(KERN_WARNING "%s: Too many irqs (%d), " - "limiting to %d.\n", - dp->full_name, op->num_irqs, PROMINTR_MAX); - op->num_irqs = PROMINTR_MAX; - } - - build_device_resources(op, parent); - for (i = 0; i < op->num_irqs; i++) - op->irqs[i] = build_one_device_irq(op, parent, op->irqs[i]); - - op->dev.parent = parent; - op->dev.bus = &of_platform_bus_type; - if (!parent) - dev_set_name(&op->dev, "root"); - else - dev_set_name(&op->dev, "%08x", dp->node); - - if (of_device_register(op)) { - printk("%s: Could not register of device.\n", - dp->full_name); - kfree(op); - op = NULL; - } - - return op; -} - -static void __init scan_tree(struct device_node *dp, struct device *parent) -{ - while (dp) { - struct of_device *op = scan_one_device(dp, parent); - - if (op) - scan_tree(dp->child, &op->dev); - - dp = dp->sibling; - } -} - -static void __init scan_of_devices(void) -{ - struct device_node *root = of_find_node_by_path("/"); - struct of_device *parent; - - parent = scan_one_device(root, NULL); - if (!parent) - return; - - scan_tree(root->child, &parent->dev); -} - -static int __init of_bus_driver_init(void) -{ - int err; - - err = of_bus_type_init(&of_platform_bus_type, "of"); - if (!err) - scan_of_devices(); - - return err; -} - -postcore_initcall(of_bus_driver_init); - -static int __init of_debug(char *str) -{ - int val = 0; - - get_option(&str, &val); - if (val & 1) - of_resource_verbose = 1; - if (val & 2) - of_irq_verbose = 1; - return 1; -} - -__setup("of_debug=", of_debug); diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c deleted file mode 100644 index bdb7c0a6d83d..000000000000 --- a/arch/sparc64/kernel/pci.c +++ /dev/null @@ -1,1095 +0,0 @@ -/* pci.c: UltraSparc PCI controller support. - * - * Copyright (C) 1997, 1998, 1999 David S. Miller (davem@redhat.com) - * Copyright (C) 1998, 1999 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz) - * - * OF tree based PCI bus probing taken from the PowerPC port - * with minor modifications, see there for credits. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/sched.h> -#include <linux/capability.h> -#include <linux/errno.h> -#include <linux/pci.h> -#include <linux/msi.h> -#include <linux/irq.h> -#include <linux/init.h> -#include <linux/of.h> -#include <linux/of_device.h> - -#include <asm/uaccess.h> -#include <asm/pgtable.h> -#include <asm/irq.h> -#include <asm/prom.h> -#include <asm/apb.h> - -#include "pci_impl.h" - -/* List of all PCI controllers found in the system. */ -struct pci_pbm_info *pci_pbm_root = NULL; - -/* Each PBM found gets a unique index. */ -int pci_num_pbms = 0; - -volatile int pci_poke_in_progress; -volatile int pci_poke_cpu = -1; -volatile int pci_poke_faulted; - -static DEFINE_SPINLOCK(pci_poke_lock); - -void pci_config_read8(u8 *addr, u8 *ret) -{ - unsigned long flags; - u8 byte; - - spin_lock_irqsave(&pci_poke_lock, flags); - pci_poke_cpu = smp_processor_id(); - pci_poke_in_progress = 1; - pci_poke_faulted = 0; - __asm__ __volatile__("membar #Sync\n\t" - "lduba [%1] %2, %0\n\t" - "membar #Sync" - : "=r" (byte) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - pci_poke_in_progress = 0; - pci_poke_cpu = -1; - if (!pci_poke_faulted) - *ret = byte; - spin_unlock_irqrestore(&pci_poke_lock, flags); -} - -void pci_config_read16(u16 *addr, u16 *ret) -{ - unsigned long flags; - u16 word; - - spin_lock_irqsave(&pci_poke_lock, flags); - pci_poke_cpu = smp_processor_id(); - pci_poke_in_progress = 1; - pci_poke_faulted = 0; - __asm__ __volatile__("membar #Sync\n\t" - "lduha [%1] %2, %0\n\t" - "membar #Sync" - : "=r" (word) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - pci_poke_in_progress = 0; - pci_poke_cpu = -1; - if (!pci_poke_faulted) - *ret = word; - spin_unlock_irqrestore(&pci_poke_lock, flags); -} - -void pci_config_read32(u32 *addr, u32 *ret) -{ - unsigned long flags; - u32 dword; - - spin_lock_irqsave(&pci_poke_lock, flags); - pci_poke_cpu = smp_processor_id(); - pci_poke_in_progress = 1; - pci_poke_faulted = 0; - __asm__ __volatile__("membar #Sync\n\t" - "lduwa [%1] %2, %0\n\t" - "membar #Sync" - : "=r" (dword) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - pci_poke_in_progress = 0; - pci_poke_cpu = -1; - if (!pci_poke_faulted) - *ret = dword; - spin_unlock_irqrestore(&pci_poke_lock, flags); -} - -void pci_config_write8(u8 *addr, u8 val) -{ - unsigned long flags; - - spin_lock_irqsave(&pci_poke_lock, flags); - pci_poke_cpu = smp_processor_id(); - pci_poke_in_progress = 1; - pci_poke_faulted = 0; - __asm__ __volatile__("membar #Sync\n\t" - "stba %0, [%1] %2\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (val), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - pci_poke_in_progress = 0; - pci_poke_cpu = -1; - spin_unlock_irqrestore(&pci_poke_lock, flags); -} - -void pci_config_write16(u16 *addr, u16 val) -{ - unsigned long flags; - - spin_lock_irqsave(&pci_poke_lock, flags); - pci_poke_cpu = smp_processor_id(); - pci_poke_in_progress = 1; - pci_poke_faulted = 0; - __asm__ __volatile__("membar #Sync\n\t" - "stha %0, [%1] %2\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (val), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - pci_poke_in_progress = 0; - pci_poke_cpu = -1; - spin_unlock_irqrestore(&pci_poke_lock, flags); -} - -void pci_config_write32(u32 *addr, u32 val) -{ - unsigned long flags; - - spin_lock_irqsave(&pci_poke_lock, flags); - pci_poke_cpu = smp_processor_id(); - pci_poke_in_progress = 1; - pci_poke_faulted = 0; - __asm__ __volatile__("membar #Sync\n\t" - "stwa %0, [%1] %2\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (val), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - pci_poke_in_progress = 0; - pci_poke_cpu = -1; - spin_unlock_irqrestore(&pci_poke_lock, flags); -} - -static int ofpci_verbose; - -static int __init ofpci_debug(char *str) -{ - int val = 0; - - get_option(&str, &val); - if (val) - ofpci_verbose = 1; - return 1; -} - -__setup("ofpci_debug=", ofpci_debug); - -static unsigned long pci_parse_of_flags(u32 addr0) -{ - unsigned long flags = 0; - - if (addr0 & 0x02000000) { - flags = IORESOURCE_MEM | PCI_BASE_ADDRESS_SPACE_MEMORY; - flags |= (addr0 >> 22) & PCI_BASE_ADDRESS_MEM_TYPE_64; - flags |= (addr0 >> 28) & PCI_BASE_ADDRESS_MEM_TYPE_1M; - if (addr0 & 0x40000000) - flags |= IORESOURCE_PREFETCH - | PCI_BASE_ADDRESS_MEM_PREFETCH; - } else if (addr0 & 0x01000000) - flags = IORESOURCE_IO | PCI_BASE_ADDRESS_SPACE_IO; - return flags; -} - -/* The of_device layer has translated all of the assigned-address properties - * into physical address resources, we only have to figure out the register - * mapping. - */ -static void pci_parse_of_addrs(struct of_device *op, - struct device_node *node, - struct pci_dev *dev) -{ - struct resource *op_res; - const u32 *addrs; - int proplen; - - addrs = of_get_property(node, "assigned-addresses", &proplen); - if (!addrs) - return; - if (ofpci_verbose) - printk(" parse addresses (%d bytes) @ %p\n", - proplen, addrs); - op_res = &op->resource[0]; - for (; proplen >= 20; proplen -= 20, addrs += 5, op_res++) { - struct resource *res; - unsigned long flags; - int i; - - flags = pci_parse_of_flags(addrs[0]); - if (!flags) - continue; - i = addrs[0] & 0xff; - if (ofpci_verbose) - printk(" start: %lx, end: %lx, i: %x\n", - op_res->start, op_res->end, i); - - if (PCI_BASE_ADDRESS_0 <= i && i <= PCI_BASE_ADDRESS_5) { - res = &dev->resource[(i - PCI_BASE_ADDRESS_0) >> 2]; - } else if (i == dev->rom_base_reg) { - res = &dev->resource[PCI_ROM_RESOURCE]; - flags |= IORESOURCE_READONLY | IORESOURCE_CACHEABLE; - } else { - printk(KERN_ERR "PCI: bad cfg reg num 0x%x\n", i); - continue; - } - res->start = op_res->start; - res->end = op_res->end; - res->flags = flags; - res->name = pci_name(dev); - } -} - -static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_bus *bus, int devfn) -{ - struct dev_archdata *sd; - struct of_device *op; - struct pci_dev *dev; - const char *type; - u32 class; - - dev = alloc_pci_dev(); - if (!dev) - return NULL; - - sd = &dev->dev.archdata; - sd->iommu = pbm->iommu; - sd->stc = &pbm->stc; - sd->host_controller = pbm; - sd->prom_node = node; - sd->op = op = of_find_device_by_node(node); - sd->numa_node = pbm->numa_node; - - sd = &op->dev.archdata; - sd->iommu = pbm->iommu; - sd->stc = &pbm->stc; - sd->numa_node = pbm->numa_node; - - if (!strcmp(node->name, "ebus")) - of_propagate_archdata(op); - - type = of_get_property(node, "device_type", NULL); - if (type == NULL) - type = ""; - - if (ofpci_verbose) - printk(" create device, devfn: %x, type: %s\n", - devfn, type); - - dev->bus = bus; - dev->sysdata = node; - dev->dev.parent = bus->bridge; - dev->dev.bus = &pci_bus_type; - dev->devfn = devfn; - dev->multifunction = 0; /* maybe a lie? */ - - dev->vendor = of_getintprop_default(node, "vendor-id", 0xffff); - dev->device = of_getintprop_default(node, "device-id", 0xffff); - dev->subsystem_vendor = - of_getintprop_default(node, "subsystem-vendor-id", 0); - dev->subsystem_device = - of_getintprop_default(node, "subsystem-id", 0); - - dev->cfg_size = pci_cfg_space_size(dev); - - /* We can't actually use the firmware value, we have - * to read what is in the register right now. One - * reason is that in the case of IDE interfaces the - * firmware can sample the value before the the IDE - * interface is programmed into native mode. - */ - pci_read_config_dword(dev, PCI_CLASS_REVISION, &class); - dev->class = class >> 8; - dev->revision = class & 0xff; - - dev_set_name(&dev->dev, "%04x:%02x:%02x.%d", pci_domain_nr(bus), - dev->bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn)); - - if (ofpci_verbose) - printk(" class: 0x%x device name: %s\n", - dev->class, pci_name(dev)); - - /* I have seen IDE devices which will not respond to - * the bmdma simplex check reads if bus mastering is - * disabled. - */ - if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) - pci_set_master(dev); - - dev->current_state = 4; /* unknown power state */ - dev->error_state = pci_channel_io_normal; - - if (!strcmp(node->name, "pci")) { - /* a PCI-PCI bridge */ - dev->hdr_type = PCI_HEADER_TYPE_BRIDGE; - dev->rom_base_reg = PCI_ROM_ADDRESS1; - } else if (!strcmp(type, "cardbus")) { - dev->hdr_type = PCI_HEADER_TYPE_CARDBUS; - } else { - dev->hdr_type = PCI_HEADER_TYPE_NORMAL; - dev->rom_base_reg = PCI_ROM_ADDRESS; - - dev->irq = sd->op->irqs[0]; - if (dev->irq == 0xffffffff) - dev->irq = PCI_IRQ_NONE; - } - - pci_parse_of_addrs(sd->op, node, dev); - - if (ofpci_verbose) - printk(" adding to system ...\n"); - - pci_device_add(dev, bus); - - return dev; -} - -static void __devinit apb_calc_first_last(u8 map, u32 *first_p, u32 *last_p) -{ - u32 idx, first, last; - - first = 8; - last = 0; - for (idx = 0; idx < 8; idx++) { - if ((map & (1 << idx)) != 0) { - if (first > idx) - first = idx; - if (last < idx) - last = idx; - } - } - - *first_p = first; - *last_p = last; -} - -static void pci_resource_adjust(struct resource *res, - struct resource *root) -{ - res->start += root->start; - res->end += root->start; -} - -/* For PCI bus devices which lack a 'ranges' property we interrogate - * the config space values to set the resources, just like the generic - * Linux PCI probing code does. - */ -static void __devinit pci_cfg_fake_ranges(struct pci_dev *dev, - struct pci_bus *bus, - struct pci_pbm_info *pbm) -{ - struct resource *res; - u8 io_base_lo, io_limit_lo; - u16 mem_base_lo, mem_limit_lo; - unsigned long base, limit; - - pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo); - pci_read_config_byte(dev, PCI_IO_LIMIT, &io_limit_lo); - base = (io_base_lo & PCI_IO_RANGE_MASK) << 8; - limit = (io_limit_lo & PCI_IO_RANGE_MASK) << 8; - - if ((io_base_lo & PCI_IO_RANGE_TYPE_MASK) == PCI_IO_RANGE_TYPE_32) { - u16 io_base_hi, io_limit_hi; - - pci_read_config_word(dev, PCI_IO_BASE_UPPER16, &io_base_hi); - pci_read_config_word(dev, PCI_IO_LIMIT_UPPER16, &io_limit_hi); - base |= (io_base_hi << 16); - limit |= (io_limit_hi << 16); - } - - res = bus->resource[0]; - if (base <= limit) { - res->flags = (io_base_lo & PCI_IO_RANGE_TYPE_MASK) | IORESOURCE_IO; - if (!res->start) - res->start = base; - if (!res->end) - res->end = limit + 0xfff; - pci_resource_adjust(res, &pbm->io_space); - } - - pci_read_config_word(dev, PCI_MEMORY_BASE, &mem_base_lo); - pci_read_config_word(dev, PCI_MEMORY_LIMIT, &mem_limit_lo); - base = (mem_base_lo & PCI_MEMORY_RANGE_MASK) << 16; - limit = (mem_limit_lo & PCI_MEMORY_RANGE_MASK) << 16; - - res = bus->resource[1]; - if (base <= limit) { - res->flags = ((mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | - IORESOURCE_MEM); - res->start = base; - res->end = limit + 0xfffff; - pci_resource_adjust(res, &pbm->mem_space); - } - - pci_read_config_word(dev, PCI_PREF_MEMORY_BASE, &mem_base_lo); - pci_read_config_word(dev, PCI_PREF_MEMORY_LIMIT, &mem_limit_lo); - base = (mem_base_lo & PCI_PREF_RANGE_MASK) << 16; - limit = (mem_limit_lo & PCI_PREF_RANGE_MASK) << 16; - - if ((mem_base_lo & PCI_PREF_RANGE_TYPE_MASK) == PCI_PREF_RANGE_TYPE_64) { - u32 mem_base_hi, mem_limit_hi; - - pci_read_config_dword(dev, PCI_PREF_BASE_UPPER32, &mem_base_hi); - pci_read_config_dword(dev, PCI_PREF_LIMIT_UPPER32, &mem_limit_hi); - - /* - * Some bridges set the base > limit by default, and some - * (broken) BIOSes do not initialize them. If we find - * this, just assume they are not being used. - */ - if (mem_base_hi <= mem_limit_hi) { - base |= ((long) mem_base_hi) << 32; - limit |= ((long) mem_limit_hi) << 32; - } - } - - res = bus->resource[2]; - if (base <= limit) { - res->flags = ((mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | - IORESOURCE_MEM | IORESOURCE_PREFETCH); - res->start = base; - res->end = limit + 0xfffff; - pci_resource_adjust(res, &pbm->mem_space); - } -} - -/* Cook up fake bus resources for SUNW,simba PCI bridges which lack - * a proper 'ranges' property. - */ -static void __devinit apb_fake_ranges(struct pci_dev *dev, - struct pci_bus *bus, - struct pci_pbm_info *pbm) -{ - struct resource *res; - u32 first, last; - u8 map; - - pci_read_config_byte(dev, APB_IO_ADDRESS_MAP, &map); - apb_calc_first_last(map, &first, &last); - res = bus->resource[0]; - res->start = (first << 21); - res->end = (last << 21) + ((1 << 21) - 1); - res->flags = IORESOURCE_IO; - pci_resource_adjust(res, &pbm->io_space); - - pci_read_config_byte(dev, APB_MEM_ADDRESS_MAP, &map); - apb_calc_first_last(map, &first, &last); - res = bus->resource[1]; - res->start = (first << 21); - res->end = (last << 21) + ((1 << 21) - 1); - res->flags = IORESOURCE_MEM; - pci_resource_adjust(res, &pbm->mem_space); -} - -static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_bus *bus); - -#define GET_64BIT(prop, i) ((((u64) (prop)[(i)]) << 32) | (prop)[(i)+1]) - -static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_dev *dev) -{ - struct pci_bus *bus; - const u32 *busrange, *ranges; - int len, i, simba; - struct resource *res; - unsigned int flags; - u64 size; - - if (ofpci_verbose) - printk("of_scan_pci_bridge(%s)\n", node->full_name); - - /* parse bus-range property */ - busrange = of_get_property(node, "bus-range", &len); - if (busrange == NULL || len != 8) { - printk(KERN_DEBUG "Can't get bus-range for PCI-PCI bridge %s\n", - node->full_name); - return; - } - ranges = of_get_property(node, "ranges", &len); - simba = 0; - if (ranges == NULL) { - const char *model = of_get_property(node, "model", NULL); - if (model && !strcmp(model, "SUNW,simba")) - simba = 1; - } - - bus = pci_add_new_bus(dev->bus, dev, busrange[0]); - if (!bus) { - printk(KERN_ERR "Failed to create pci bus for %s\n", - node->full_name); - return; - } - - bus->primary = dev->bus->number; - bus->subordinate = busrange[1]; - bus->bridge_ctl = 0; - - /* parse ranges property, or cook one up by hand for Simba */ - /* PCI #address-cells == 3 and #size-cells == 2 always */ - res = &dev->resource[PCI_BRIDGE_RESOURCES]; - for (i = 0; i < PCI_NUM_RESOURCES - PCI_BRIDGE_RESOURCES; ++i) { - res->flags = 0; - bus->resource[i] = res; - ++res; - } - if (simba) { - apb_fake_ranges(dev, bus, pbm); - goto after_ranges; - } else if (ranges == NULL) { - pci_cfg_fake_ranges(dev, bus, pbm); - goto after_ranges; - } - i = 1; - for (; len >= 32; len -= 32, ranges += 8) { - struct resource *root; - - flags = pci_parse_of_flags(ranges[0]); - size = GET_64BIT(ranges, 6); - if (flags == 0 || size == 0) - continue; - if (flags & IORESOURCE_IO) { - res = bus->resource[0]; - if (res->flags) { - printk(KERN_ERR "PCI: ignoring extra I/O range" - " for bridge %s\n", node->full_name); - continue; - } - root = &pbm->io_space; - } else { - if (i >= PCI_NUM_RESOURCES - PCI_BRIDGE_RESOURCES) { - printk(KERN_ERR "PCI: too many memory ranges" - " for bridge %s\n", node->full_name); - continue; - } - res = bus->resource[i]; - ++i; - root = &pbm->mem_space; - } - - res->start = GET_64BIT(ranges, 1); - res->end = res->start + size - 1; - res->flags = flags; - - /* Another way to implement this would be to add an of_device - * layer routine that can calculate a resource for a given - * range property value in a PCI device. - */ - pci_resource_adjust(res, root); - } -after_ranges: - sprintf(bus->name, "PCI Bus %04x:%02x", pci_domain_nr(bus), - bus->number); - if (ofpci_verbose) - printk(" bus name: %s\n", bus->name); - - pci_of_scan_bus(pbm, node, bus); -} - -static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_bus *bus) -{ - struct device_node *child; - const u32 *reg; - int reglen, devfn, prev_devfn; - struct pci_dev *dev; - - if (ofpci_verbose) - printk("PCI: scan_bus[%s] bus no %d\n", - node->full_name, bus->number); - - child = NULL; - prev_devfn = -1; - while ((child = of_get_next_child(node, child)) != NULL) { - if (ofpci_verbose) - printk(" * %s\n", child->full_name); - reg = of_get_property(child, "reg", ®len); - if (reg == NULL || reglen < 20) - continue; - - devfn = (reg[0] >> 8) & 0xff; - - /* This is a workaround for some device trees - * which list PCI devices twice. On the V100 - * for example, device number 3 is listed twice. - * Once as "pm" and once again as "lomp". - */ - if (devfn == prev_devfn) - continue; - prev_devfn = devfn; - - /* create a new pci_dev for this device */ - dev = of_create_pci_dev(pbm, child, bus, devfn); - if (!dev) - continue; - if (ofpci_verbose) - printk("PCI: dev header type: %x\n", - dev->hdr_type); - - if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || - dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) - of_scan_pci_bridge(pbm, child, dev); - } -} - -static ssize_t -show_pciobppath_attr(struct device * dev, struct device_attribute * attr, char * buf) -{ - struct pci_dev *pdev; - struct device_node *dp; - - pdev = to_pci_dev(dev); - dp = pdev->dev.archdata.prom_node; - - return snprintf (buf, PAGE_SIZE, "%s\n", dp->full_name); -} - -static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH, show_pciobppath_attr, NULL); - -static void __devinit pci_bus_register_of_sysfs(struct pci_bus *bus) -{ - struct pci_dev *dev; - struct pci_bus *child_bus; - int err; - - list_for_each_entry(dev, &bus->devices, bus_list) { - /* we don't really care if we can create this file or - * not, but we need to assign the result of the call - * or the world will fall under alien invasion and - * everybody will be frozen on a spaceship ready to be - * eaten on alpha centauri by some green and jelly - * humanoid. - */ - err = sysfs_create_file(&dev->dev.kobj, &dev_attr_obppath.attr); - } - list_for_each_entry(child_bus, &bus->children, node) - pci_bus_register_of_sysfs(child_bus); -} - -struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm, - struct device *parent) -{ - struct device_node *node = pbm->op->node; - struct pci_bus *bus; - - printk("PCI: Scanning PBM %s\n", node->full_name); - - bus = pci_create_bus(parent, pbm->pci_first_busno, pbm->pci_ops, pbm); - if (!bus) { - printk(KERN_ERR "Failed to create bus for %s\n", - node->full_name); - return NULL; - } - bus->secondary = pbm->pci_first_busno; - bus->subordinate = pbm->pci_last_busno; - - bus->resource[0] = &pbm->io_space; - bus->resource[1] = &pbm->mem_space; - - pci_of_scan_bus(pbm, node, bus); - pci_bus_add_devices(bus); - pci_bus_register_of_sysfs(bus); - - return bus; -} - -void __devinit pcibios_fixup_bus(struct pci_bus *pbus) -{ - struct pci_pbm_info *pbm = pbus->sysdata; - - /* Generic PCI bus probing sets these to point at - * &io{port,mem}_resouce which is wrong for us. - */ - pbus->resource[0] = &pbm->io_space; - pbus->resource[1] = &pbm->mem_space; -} - -struct resource *pcibios_select_root(struct pci_dev *pdev, struct resource *r) -{ - struct pci_pbm_info *pbm = pdev->bus->sysdata; - struct resource *root = NULL; - - if (r->flags & IORESOURCE_IO) - root = &pbm->io_space; - if (r->flags & IORESOURCE_MEM) - root = &pbm->mem_space; - - return root; -} - -void pcibios_update_irq(struct pci_dev *pdev, int irq) -{ -} - -void pcibios_align_resource(void *data, struct resource *res, - resource_size_t size, resource_size_t align) -{ -} - -int pcibios_enable_device(struct pci_dev *dev, int mask) -{ - u16 cmd, oldcmd; - int i; - - pci_read_config_word(dev, PCI_COMMAND, &cmd); - oldcmd = cmd; - - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *res = &dev->resource[i]; - - /* Only set up the requested stuff */ - if (!(mask & (1<<i))) - continue; - - if (res->flags & IORESOURCE_IO) - cmd |= PCI_COMMAND_IO; - if (res->flags & IORESOURCE_MEM) - cmd |= PCI_COMMAND_MEMORY; - } - - if (cmd != oldcmd) { - printk(KERN_DEBUG "PCI: Enabling device: (%s), cmd %x\n", - pci_name(dev), cmd); - /* Enable the appropriate bits in the PCI command register. */ - pci_write_config_word(dev, PCI_COMMAND, cmd); - } - return 0; -} - -void pcibios_resource_to_bus(struct pci_dev *pdev, struct pci_bus_region *region, - struct resource *res) -{ - struct pci_pbm_info *pbm = pdev->bus->sysdata; - struct resource zero_res, *root; - - zero_res.start = 0; - zero_res.end = 0; - zero_res.flags = res->flags; - - if (res->flags & IORESOURCE_IO) - root = &pbm->io_space; - else - root = &pbm->mem_space; - - pci_resource_adjust(&zero_res, root); - - region->start = res->start - zero_res.start; - region->end = res->end - zero_res.start; -} -EXPORT_SYMBOL(pcibios_resource_to_bus); - -void pcibios_bus_to_resource(struct pci_dev *pdev, struct resource *res, - struct pci_bus_region *region) -{ - struct pci_pbm_info *pbm = pdev->bus->sysdata; - struct resource *root; - - res->start = region->start; - res->end = region->end; - - if (res->flags & IORESOURCE_IO) - root = &pbm->io_space; - else - root = &pbm->mem_space; - - pci_resource_adjust(res, root); -} -EXPORT_SYMBOL(pcibios_bus_to_resource); - -char * __devinit pcibios_setup(char *str) -{ - return str; -} - -/* Platform support for /proc/bus/pci/X/Y mmap()s. */ - -/* If the user uses a host-bridge as the PCI device, he may use - * this to perform a raw mmap() of the I/O or MEM space behind - * that controller. - * - * This can be useful for execution of x86 PCI bios initialization code - * on a PCI card, like the xfree86 int10 stuff does. - */ -static int __pci_mmap_make_offset_bus(struct pci_dev *pdev, struct vm_area_struct *vma, - enum pci_mmap_state mmap_state) -{ - struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; - unsigned long space_size, user_offset, user_size; - - if (mmap_state == pci_mmap_io) { - space_size = (pbm->io_space.end - - pbm->io_space.start) + 1; - } else { - space_size = (pbm->mem_space.end - - pbm->mem_space.start) + 1; - } - - /* Make sure the request is in range. */ - user_offset = vma->vm_pgoff << PAGE_SHIFT; - user_size = vma->vm_end - vma->vm_start; - - if (user_offset >= space_size || - (user_offset + user_size) > space_size) - return -EINVAL; - - if (mmap_state == pci_mmap_io) { - vma->vm_pgoff = (pbm->io_space.start + - user_offset) >> PAGE_SHIFT; - } else { - vma->vm_pgoff = (pbm->mem_space.start + - user_offset) >> PAGE_SHIFT; - } - - return 0; -} - -/* Adjust vm_pgoff of VMA such that it is the physical page offset - * corresponding to the 32-bit pci bus offset for DEV requested by the user. - * - * Basically, the user finds the base address for his device which he wishes - * to mmap. They read the 32-bit value from the config space base register, - * add whatever PAGE_SIZE multiple offset they wish, and feed this into the - * offset parameter of mmap on /proc/bus/pci/XXX for that device. - * - * Returns negative error code on failure, zero on success. - */ -static int __pci_mmap_make_offset(struct pci_dev *pdev, - struct vm_area_struct *vma, - enum pci_mmap_state mmap_state) -{ - unsigned long user_paddr, user_size; - int i, err; - - /* First compute the physical address in vma->vm_pgoff, - * making sure the user offset is within range in the - * appropriate PCI space. - */ - err = __pci_mmap_make_offset_bus(pdev, vma, mmap_state); - if (err) - return err; - - /* If this is a mapping on a host bridge, any address - * is OK. - */ - if ((pdev->class >> 8) == PCI_CLASS_BRIDGE_HOST) - return err; - - /* Otherwise make sure it's in the range for one of the - * device's resources. - */ - user_paddr = vma->vm_pgoff << PAGE_SHIFT; - user_size = vma->vm_end - vma->vm_start; - - for (i = 0; i <= PCI_ROM_RESOURCE; i++) { - struct resource *rp = &pdev->resource[i]; - resource_size_t aligned_end; - - /* Active? */ - if (!rp->flags) - continue; - - /* Same type? */ - if (i == PCI_ROM_RESOURCE) { - if (mmap_state != pci_mmap_mem) - continue; - } else { - if ((mmap_state == pci_mmap_io && - (rp->flags & IORESOURCE_IO) == 0) || - (mmap_state == pci_mmap_mem && - (rp->flags & IORESOURCE_MEM) == 0)) - continue; - } - - /* Align the resource end to the next page address. - * PAGE_SIZE intentionally added instead of (PAGE_SIZE - 1), - * because actually we need the address of the next byte - * after rp->end. - */ - aligned_end = (rp->end + PAGE_SIZE) & PAGE_MASK; - - if ((rp->start <= user_paddr) && - (user_paddr + user_size) <= aligned_end) - break; - } - - if (i > PCI_ROM_RESOURCE) - return -EINVAL; - - return 0; -} - -/* Set vm_flags of VMA, as appropriate for this architecture, for a pci device - * mapping. - */ -static void __pci_mmap_set_flags(struct pci_dev *dev, struct vm_area_struct *vma, - enum pci_mmap_state mmap_state) -{ - vma->vm_flags |= (VM_IO | VM_RESERVED); -} - -/* Set vm_page_prot of VMA, as appropriate for this architecture, for a pci - * device mapping. - */ -static void __pci_mmap_set_pgprot(struct pci_dev *dev, struct vm_area_struct *vma, - enum pci_mmap_state mmap_state) -{ - /* Our io_remap_pfn_range takes care of this, do nothing. */ -} - -/* Perform the actual remap of the pages for a PCI device mapping, as appropriate - * for this architecture. The region in the process to map is described by vm_start - * and vm_end members of VMA, the base physical address is found in vm_pgoff. - * The pci device structure is provided so that architectures may make mapping - * decisions on a per-device or per-bus basis. - * - * Returns a negative error code on failure, zero on success. - */ -int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, - enum pci_mmap_state mmap_state, - int write_combine) -{ - int ret; - - ret = __pci_mmap_make_offset(dev, vma, mmap_state); - if (ret < 0) - return ret; - - __pci_mmap_set_flags(dev, vma, mmap_state); - __pci_mmap_set_pgprot(dev, vma, mmap_state); - - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - ret = io_remap_pfn_range(vma, vma->vm_start, - vma->vm_pgoff, - vma->vm_end - vma->vm_start, - vma->vm_page_prot); - if (ret) - return ret; - - return 0; -} - -#ifdef CONFIG_NUMA -int pcibus_to_node(struct pci_bus *pbus) -{ - struct pci_pbm_info *pbm = pbus->sysdata; - - return pbm->numa_node; -} -EXPORT_SYMBOL(pcibus_to_node); -#endif - -/* Return the domain number for this pci bus */ - -int pci_domain_nr(struct pci_bus *pbus) -{ - struct pci_pbm_info *pbm = pbus->sysdata; - int ret; - - if (!pbm) { - ret = -ENXIO; - } else { - ret = pbm->index; - } - - return ret; -} -EXPORT_SYMBOL(pci_domain_nr); - -#ifdef CONFIG_PCI_MSI -int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc) -{ - struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; - unsigned int virt_irq; - - if (!pbm->setup_msi_irq) - return -EINVAL; - - return pbm->setup_msi_irq(&virt_irq, pdev, desc); -} - -void arch_teardown_msi_irq(unsigned int virt_irq) -{ - struct msi_desc *entry = get_irq_msi(virt_irq); - struct pci_dev *pdev = entry->dev; - struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; - - if (pbm->teardown_msi_irq) - pbm->teardown_msi_irq(virt_irq, pdev); -} -#endif /* !(CONFIG_PCI_MSI) */ - -struct device_node *pci_device_to_OF_node(struct pci_dev *pdev) -{ - return pdev->dev.archdata.prom_node; -} -EXPORT_SYMBOL(pci_device_to_OF_node); - -static void ali_sound_dma_hack(struct pci_dev *pdev, int set_bit) -{ - struct pci_dev *ali_isa_bridge; - u8 val; - - /* ALI sound chips generate 31-bits of DMA, a special register - * determines what bit 31 is emitted as. - */ - ali_isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, - PCI_DEVICE_ID_AL_M1533, - NULL); - - pci_read_config_byte(ali_isa_bridge, 0x7e, &val); - if (set_bit) - val |= 0x01; - else - val &= ~0x01; - pci_write_config_byte(ali_isa_bridge, 0x7e, val); - pci_dev_put(ali_isa_bridge); -} - -int pci_dma_supported(struct pci_dev *pdev, u64 device_mask) -{ - u64 dma_addr_mask; - - if (pdev == NULL) { - dma_addr_mask = 0xffffffff; - } else { - struct iommu *iommu = pdev->dev.archdata.iommu; - - dma_addr_mask = iommu->dma_addr_mask; - - if (pdev->vendor == PCI_VENDOR_ID_AL && - pdev->device == PCI_DEVICE_ID_AL_M5451 && - device_mask == 0x7fffffff) { - ali_sound_dma_hack(pdev, - (dma_addr_mask & 0x80000000) != 0); - return 1; - } - } - - if (device_mask >= (1UL << 32UL)) - return 0; - - return (device_mask & dma_addr_mask) == dma_addr_mask; -} - -void pci_resource_to_user(const struct pci_dev *pdev, int bar, - const struct resource *rp, resource_size_t *start, - resource_size_t *end) -{ - struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; - unsigned long offset; - - if (rp->flags & IORESOURCE_IO) - offset = pbm->io_space.start; - else - offset = pbm->mem_space.start; - - *start = rp->start - offset; - *end = rp->end - offset; -} diff --git a/arch/sparc64/kernel/pci_common.c b/arch/sparc64/kernel/pci_common.c deleted file mode 100644 index 23b88082d0b2..000000000000 --- a/arch/sparc64/kernel/pci_common.c +++ /dev/null @@ -1,545 +0,0 @@ -/* pci_common.c: PCI controller common support. - * - * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net) - */ - -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/device.h> -#include <linux/of_device.h> - -#include <asm/prom.h> -#include <asm/oplib.h> - -#include "pci_impl.h" -#include "pci_sun4v.h" - -static int config_out_of_range(struct pci_pbm_info *pbm, - unsigned long bus, - unsigned long devfn, - unsigned long reg) -{ - if (bus < pbm->pci_first_busno || - bus > pbm->pci_last_busno) - return 1; - return 0; -} - -static void *sun4u_config_mkaddr(struct pci_pbm_info *pbm, - unsigned long bus, - unsigned long devfn, - unsigned long reg) -{ - unsigned long rbits = pbm->config_space_reg_bits; - - if (config_out_of_range(pbm, bus, devfn, reg)) - return NULL; - - reg = (reg & ((1 << rbits) - 1)); - devfn <<= rbits; - bus <<= rbits + 8; - - return (void *) (pbm->config_space | bus | devfn | reg); -} - -/* At least on Sabre, it is necessary to access all PCI host controller - * registers at their natural size, otherwise zeros are returned. - * Strange but true, and I see no language in the UltraSPARC-IIi - * programmer's manual that mentions this even indirectly. - */ -static int sun4u_read_pci_cfg_host(struct pci_pbm_info *pbm, - unsigned char bus, unsigned int devfn, - int where, int size, u32 *value) -{ - u32 tmp32, *addr; - u16 tmp16; - u8 tmp8; - - addr = sun4u_config_mkaddr(pbm, bus, devfn, where); - if (!addr) - return PCIBIOS_SUCCESSFUL; - - switch (size) { - case 1: - if (where < 8) { - unsigned long align = (unsigned long) addr; - - align &= ~1; - pci_config_read16((u16 *)align, &tmp16); - if (where & 1) - *value = tmp16 >> 8; - else - *value = tmp16 & 0xff; - } else { - pci_config_read8((u8 *)addr, &tmp8); - *value = (u32) tmp8; - } - break; - - case 2: - if (where < 8) { - pci_config_read16((u16 *)addr, &tmp16); - *value = (u32) tmp16; - } else { - pci_config_read8((u8 *)addr, &tmp8); - *value = (u32) tmp8; - pci_config_read8(((u8 *)addr) + 1, &tmp8); - *value |= ((u32) tmp8) << 8; - } - break; - - case 4: - tmp32 = 0xffffffff; - sun4u_read_pci_cfg_host(pbm, bus, devfn, - where, 2, &tmp32); - *value = tmp32; - - tmp32 = 0xffffffff; - sun4u_read_pci_cfg_host(pbm, bus, devfn, - where + 2, 2, &tmp32); - *value |= tmp32 << 16; - break; - } - return PCIBIOS_SUCCESSFUL; -} - -static int sun4u_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn, - int where, int size, u32 *value) -{ - struct pci_pbm_info *pbm = bus_dev->sysdata; - unsigned char bus = bus_dev->number; - u32 *addr; - u16 tmp16; - u8 tmp8; - - switch (size) { - case 1: - *value = 0xff; - break; - case 2: - *value = 0xffff; - break; - case 4: - *value = 0xffffffff; - break; - } - - if (!bus_dev->number && !PCI_SLOT(devfn)) - return sun4u_read_pci_cfg_host(pbm, bus, devfn, where, - size, value); - - addr = sun4u_config_mkaddr(pbm, bus, devfn, where); - if (!addr) - return PCIBIOS_SUCCESSFUL; - - switch (size) { - case 1: - pci_config_read8((u8 *)addr, &tmp8); - *value = (u32) tmp8; - break; - - case 2: - if (where & 0x01) { - printk("pci_read_config_word: misaligned reg [%x]\n", - where); - return PCIBIOS_SUCCESSFUL; - } - pci_config_read16((u16 *)addr, &tmp16); - *value = (u32) tmp16; - break; - - case 4: - if (where & 0x03) { - printk("pci_read_config_dword: misaligned reg [%x]\n", - where); - return PCIBIOS_SUCCESSFUL; - } - pci_config_read32(addr, value); - break; - } - return PCIBIOS_SUCCESSFUL; -} - -static int sun4u_write_pci_cfg_host(struct pci_pbm_info *pbm, - unsigned char bus, unsigned int devfn, - int where, int size, u32 value) -{ - u32 *addr; - - addr = sun4u_config_mkaddr(pbm, bus, devfn, where); - if (!addr) - return PCIBIOS_SUCCESSFUL; - - switch (size) { - case 1: - if (where < 8) { - unsigned long align = (unsigned long) addr; - u16 tmp16; - - align &= ~1; - pci_config_read16((u16 *)align, &tmp16); - if (where & 1) { - tmp16 &= 0x00ff; - tmp16 |= value << 8; - } else { - tmp16 &= 0xff00; - tmp16 |= value; - } - pci_config_write16((u16 *)align, tmp16); - } else - pci_config_write8((u8 *)addr, value); - break; - case 2: - if (where < 8) { - pci_config_write16((u16 *)addr, value); - } else { - pci_config_write8((u8 *)addr, value & 0xff); - pci_config_write8(((u8 *)addr) + 1, value >> 8); - } - break; - case 4: - sun4u_write_pci_cfg_host(pbm, bus, devfn, - where, 2, value & 0xffff); - sun4u_write_pci_cfg_host(pbm, bus, devfn, - where + 2, 2, value >> 16); - break; - } - return PCIBIOS_SUCCESSFUL; -} - -static int sun4u_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn, - int where, int size, u32 value) -{ - struct pci_pbm_info *pbm = bus_dev->sysdata; - unsigned char bus = bus_dev->number; - u32 *addr; - - if (!bus_dev->number && !PCI_SLOT(devfn)) - return sun4u_write_pci_cfg_host(pbm, bus, devfn, where, - size, value); - - addr = sun4u_config_mkaddr(pbm, bus, devfn, where); - if (!addr) - return PCIBIOS_SUCCESSFUL; - - switch (size) { - case 1: - pci_config_write8((u8 *)addr, value); - break; - - case 2: - if (where & 0x01) { - printk("pci_write_config_word: misaligned reg [%x]\n", - where); - return PCIBIOS_SUCCESSFUL; - } - pci_config_write16((u16 *)addr, value); - break; - - case 4: - if (where & 0x03) { - printk("pci_write_config_dword: misaligned reg [%x]\n", - where); - return PCIBIOS_SUCCESSFUL; - } - pci_config_write32(addr, value); - } - return PCIBIOS_SUCCESSFUL; -} - -struct pci_ops sun4u_pci_ops = { - .read = sun4u_read_pci_cfg, - .write = sun4u_write_pci_cfg, -}; - -static int sun4v_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn, - int where, int size, u32 *value) -{ - struct pci_pbm_info *pbm = bus_dev->sysdata; - u32 devhandle = pbm->devhandle; - unsigned int bus = bus_dev->number; - unsigned int device = PCI_SLOT(devfn); - unsigned int func = PCI_FUNC(devfn); - unsigned long ret; - - if (config_out_of_range(pbm, bus, devfn, where)) { - ret = ~0UL; - } else { - ret = pci_sun4v_config_get(devhandle, - HV_PCI_DEVICE_BUILD(bus, device, func), - where, size); - } - switch (size) { - case 1: - *value = ret & 0xff; - break; - case 2: - *value = ret & 0xffff; - break; - case 4: - *value = ret & 0xffffffff; - break; - }; - - - return PCIBIOS_SUCCESSFUL; -} - -static int sun4v_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn, - int where, int size, u32 value) -{ - struct pci_pbm_info *pbm = bus_dev->sysdata; - u32 devhandle = pbm->devhandle; - unsigned int bus = bus_dev->number; - unsigned int device = PCI_SLOT(devfn); - unsigned int func = PCI_FUNC(devfn); - unsigned long ret; - - if (config_out_of_range(pbm, bus, devfn, where)) { - /* Do nothing. */ - } else { - ret = pci_sun4v_config_put(devhandle, - HV_PCI_DEVICE_BUILD(bus, device, func), - where, size, value); - } - return PCIBIOS_SUCCESSFUL; -} - -struct pci_ops sun4v_pci_ops = { - .read = sun4v_read_pci_cfg, - .write = sun4v_write_pci_cfg, -}; - -void pci_get_pbm_props(struct pci_pbm_info *pbm) -{ - const u32 *val = of_get_property(pbm->op->node, "bus-range", NULL); - - pbm->pci_first_busno = val[0]; - pbm->pci_last_busno = val[1]; - - val = of_get_property(pbm->op->node, "ino-bitmap", NULL); - if (val) { - pbm->ino_bitmap = (((u64)val[1] << 32UL) | - ((u64)val[0] << 0UL)); - } -} - -static void pci_register_legacy_regions(struct resource *io_res, - struct resource *mem_res) -{ - struct resource *p; - - /* VGA Video RAM. */ - p = kzalloc(sizeof(*p), GFP_KERNEL); - if (!p) - return; - - p->name = "Video RAM area"; - p->start = mem_res->start + 0xa0000UL; - p->end = p->start + 0x1ffffUL; - p->flags = IORESOURCE_BUSY; - request_resource(mem_res, p); - - p = kzalloc(sizeof(*p), GFP_KERNEL); - if (!p) - return; - - p->name = "System ROM"; - p->start = mem_res->start + 0xf0000UL; - p->end = p->start + 0xffffUL; - p->flags = IORESOURCE_BUSY; - request_resource(mem_res, p); - - p = kzalloc(sizeof(*p), GFP_KERNEL); - if (!p) - return; - - p->name = "Video ROM"; - p->start = mem_res->start + 0xc0000UL; - p->end = p->start + 0x7fffUL; - p->flags = IORESOURCE_BUSY; - request_resource(mem_res, p); -} - -static void pci_register_iommu_region(struct pci_pbm_info *pbm) -{ - const u32 *vdma = of_get_property(pbm->op->node, "virtual-dma", NULL); - - if (vdma) { - struct resource *rp = kmalloc(sizeof(*rp), GFP_KERNEL); - - if (!rp) { - prom_printf("Cannot allocate IOMMU resource.\n"); - prom_halt(); - } - rp->name = "IOMMU"; - rp->start = pbm->mem_space.start + (unsigned long) vdma[0]; - rp->end = rp->start + (unsigned long) vdma[1] - 1UL; - rp->flags = IORESOURCE_BUSY; - request_resource(&pbm->mem_space, rp); - } -} - -void pci_determine_mem_io_space(struct pci_pbm_info *pbm) -{ - const struct linux_prom_pci_ranges *pbm_ranges; - int i, saw_mem, saw_io; - int num_pbm_ranges; - - saw_mem = saw_io = 0; - pbm_ranges = of_get_property(pbm->op->node, "ranges", &i); - if (!pbm_ranges) { - prom_printf("PCI: Fatal error, missing PBM ranges property " - " for %s\n", - pbm->name); - prom_halt(); - } - - num_pbm_ranges = i / sizeof(*pbm_ranges); - - for (i = 0; i < num_pbm_ranges; i++) { - const struct linux_prom_pci_ranges *pr = &pbm_ranges[i]; - unsigned long a, size; - u32 parent_phys_hi, parent_phys_lo; - u32 size_hi, size_lo; - int type; - - parent_phys_hi = pr->parent_phys_hi; - parent_phys_lo = pr->parent_phys_lo; - if (tlb_type == hypervisor) - parent_phys_hi &= 0x0fffffff; - - size_hi = pr->size_hi; - size_lo = pr->size_lo; - - type = (pr->child_phys_hi >> 24) & 0x3; - a = (((unsigned long)parent_phys_hi << 32UL) | - ((unsigned long)parent_phys_lo << 0UL)); - size = (((unsigned long)size_hi << 32UL) | - ((unsigned long)size_lo << 0UL)); - - switch (type) { - case 0: - /* PCI config space, 16MB */ - pbm->config_space = a; - break; - - case 1: - /* 16-bit IO space, 16MB */ - pbm->io_space.start = a; - pbm->io_space.end = a + size - 1UL; - pbm->io_space.flags = IORESOURCE_IO; - saw_io = 1; - break; - - case 2: - /* 32-bit MEM space, 2GB */ - pbm->mem_space.start = a; - pbm->mem_space.end = a + size - 1UL; - pbm->mem_space.flags = IORESOURCE_MEM; - saw_mem = 1; - break; - - case 3: - /* XXX 64-bit MEM handling XXX */ - - default: - break; - }; - } - - if (!saw_io || !saw_mem) { - prom_printf("%s: Fatal error, missing %s PBM range.\n", - pbm->name, - (!saw_io ? "IO" : "MEM")); - prom_halt(); - } - - printk("%s: PCI IO[%lx] MEM[%lx]\n", - pbm->name, - pbm->io_space.start, - pbm->mem_space.start); - - pbm->io_space.name = pbm->mem_space.name = pbm->name; - - request_resource(&ioport_resource, &pbm->io_space); - request_resource(&iomem_resource, &pbm->mem_space); - - pci_register_legacy_regions(&pbm->io_space, - &pbm->mem_space); - pci_register_iommu_region(pbm); -} - -/* Generic helper routines for PCI error reporting. */ -void pci_scan_for_target_abort(struct pci_pbm_info *pbm, - struct pci_bus *pbus) -{ - struct pci_dev *pdev; - struct pci_bus *bus; - - list_for_each_entry(pdev, &pbus->devices, bus_list) { - u16 status, error_bits; - - pci_read_config_word(pdev, PCI_STATUS, &status); - error_bits = - (status & (PCI_STATUS_SIG_TARGET_ABORT | - PCI_STATUS_REC_TARGET_ABORT)); - if (error_bits) { - pci_write_config_word(pdev, PCI_STATUS, error_bits); - printk("%s: Device %s saw Target Abort [%016x]\n", - pbm->name, pci_name(pdev), status); - } - } - - list_for_each_entry(bus, &pbus->children, node) - pci_scan_for_target_abort(pbm, bus); -} - -void pci_scan_for_master_abort(struct pci_pbm_info *pbm, - struct pci_bus *pbus) -{ - struct pci_dev *pdev; - struct pci_bus *bus; - - list_for_each_entry(pdev, &pbus->devices, bus_list) { - u16 status, error_bits; - - pci_read_config_word(pdev, PCI_STATUS, &status); - error_bits = - (status & (PCI_STATUS_REC_MASTER_ABORT)); - if (error_bits) { - pci_write_config_word(pdev, PCI_STATUS, error_bits); - printk("%s: Device %s received Master Abort [%016x]\n", - pbm->name, pci_name(pdev), status); - } - } - - list_for_each_entry(bus, &pbus->children, node) - pci_scan_for_master_abort(pbm, bus); -} - -void pci_scan_for_parity_error(struct pci_pbm_info *pbm, - struct pci_bus *pbus) -{ - struct pci_dev *pdev; - struct pci_bus *bus; - - list_for_each_entry(pdev, &pbus->devices, bus_list) { - u16 status, error_bits; - - pci_read_config_word(pdev, PCI_STATUS, &status); - error_bits = - (status & (PCI_STATUS_PARITY | - PCI_STATUS_DETECTED_PARITY)); - if (error_bits) { - pci_write_config_word(pdev, PCI_STATUS, error_bits); - printk("%s: Device %s saw Parity Error [%016x]\n", - pbm->name, pci_name(pdev), status); - } - } - - list_for_each_entry(bus, &pbus->children, node) - pci_scan_for_parity_error(pbm, bus); -} diff --git a/arch/sparc64/kernel/pci_fire.c b/arch/sparc64/kernel/pci_fire.c deleted file mode 100644 index 9462b68f4894..000000000000 --- a/arch/sparc64/kernel/pci_fire.c +++ /dev/null @@ -1,521 +0,0 @@ -/* pci_fire.c: Sun4u platform PCI-E controller support. - * - * Copyright (C) 2007 David S. Miller (davem@davemloft.net) - */ -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/msi.h> -#include <linux/irq.h> -#include <linux/of_device.h> - -#include <asm/prom.h> -#include <asm/irq.h> -#include <asm/upa.h> - -#include "pci_impl.h" - -#define DRIVER_NAME "fire" -#define PFX DRIVER_NAME ": " - -#define FIRE_IOMMU_CONTROL 0x40000UL -#define FIRE_IOMMU_TSBBASE 0x40008UL -#define FIRE_IOMMU_FLUSH 0x40100UL -#define FIRE_IOMMU_FLUSHINV 0x40108UL - -static int pci_fire_pbm_iommu_init(struct pci_pbm_info *pbm) -{ - struct iommu *iommu = pbm->iommu; - u32 vdma[2], dma_mask; - u64 control; - int tsbsize, err; - - /* No virtual-dma property on these guys, use largest size. */ - vdma[0] = 0xc0000000; /* base */ - vdma[1] = 0x40000000; /* size */ - dma_mask = 0xffffffff; - tsbsize = 128; - - /* Register addresses. */ - iommu->iommu_control = pbm->pbm_regs + FIRE_IOMMU_CONTROL; - iommu->iommu_tsbbase = pbm->pbm_regs + FIRE_IOMMU_TSBBASE; - iommu->iommu_flush = pbm->pbm_regs + FIRE_IOMMU_FLUSH; - iommu->iommu_flushinv = pbm->pbm_regs + FIRE_IOMMU_FLUSHINV; - - /* We use the main control/status register of FIRE as the write - * completion register. - */ - iommu->write_complete_reg = pbm->controller_regs + 0x410000UL; - - /* - * Invalidate TLB Entries. - */ - upa_writeq(~(u64)0, iommu->iommu_flushinv); - - err = iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask, - pbm->numa_node); - if (err) - return err; - - upa_writeq(__pa(iommu->page_table) | 0x7UL, iommu->iommu_tsbbase); - - control = upa_readq(iommu->iommu_control); - control |= (0x00000400 /* TSB cache snoop enable */ | - 0x00000300 /* Cache mode */ | - 0x00000002 /* Bypass enable */ | - 0x00000001 /* Translation enable */); - upa_writeq(control, iommu->iommu_control); - - return 0; -} - -#ifdef CONFIG_PCI_MSI -struct pci_msiq_entry { - u64 word0; -#define MSIQ_WORD0_RESV 0x8000000000000000UL -#define MSIQ_WORD0_FMT_TYPE 0x7f00000000000000UL -#define MSIQ_WORD0_FMT_TYPE_SHIFT 56 -#define MSIQ_WORD0_LEN 0x00ffc00000000000UL -#define MSIQ_WORD0_LEN_SHIFT 46 -#define MSIQ_WORD0_ADDR0 0x00003fff00000000UL -#define MSIQ_WORD0_ADDR0_SHIFT 32 -#define MSIQ_WORD0_RID 0x00000000ffff0000UL -#define MSIQ_WORD0_RID_SHIFT 16 -#define MSIQ_WORD0_DATA0 0x000000000000ffffUL -#define MSIQ_WORD0_DATA0_SHIFT 0 - -#define MSIQ_TYPE_MSG 0x6 -#define MSIQ_TYPE_MSI32 0xb -#define MSIQ_TYPE_MSI64 0xf - - u64 word1; -#define MSIQ_WORD1_ADDR1 0xffffffffffff0000UL -#define MSIQ_WORD1_ADDR1_SHIFT 16 -#define MSIQ_WORD1_DATA1 0x000000000000ffffUL -#define MSIQ_WORD1_DATA1_SHIFT 0 - - u64 resv[6]; -}; - -/* All MSI registers are offset from pbm->pbm_regs */ -#define EVENT_QUEUE_BASE_ADDR_REG 0x010000UL -#define EVENT_QUEUE_BASE_ADDR_ALL_ONES 0xfffc000000000000UL - -#define EVENT_QUEUE_CONTROL_SET(EQ) (0x011000UL + (EQ) * 0x8UL) -#define EVENT_QUEUE_CONTROL_SET_OFLOW 0x0200000000000000UL -#define EVENT_QUEUE_CONTROL_SET_EN 0x0000100000000000UL - -#define EVENT_QUEUE_CONTROL_CLEAR(EQ) (0x011200UL + (EQ) * 0x8UL) -#define EVENT_QUEUE_CONTROL_CLEAR_OF 0x0200000000000000UL -#define EVENT_QUEUE_CONTROL_CLEAR_E2I 0x0000800000000000UL -#define EVENT_QUEUE_CONTROL_CLEAR_DIS 0x0000100000000000UL - -#define EVENT_QUEUE_STATE(EQ) (0x011400UL + (EQ) * 0x8UL) -#define EVENT_QUEUE_STATE_MASK 0x0000000000000007UL -#define EVENT_QUEUE_STATE_IDLE 0x0000000000000001UL -#define EVENT_QUEUE_STATE_ACTIVE 0x0000000000000002UL -#define EVENT_QUEUE_STATE_ERROR 0x0000000000000004UL - -#define EVENT_QUEUE_TAIL(EQ) (0x011600UL + (EQ) * 0x8UL) -#define EVENT_QUEUE_TAIL_OFLOW 0x0200000000000000UL -#define EVENT_QUEUE_TAIL_VAL 0x000000000000007fUL - -#define EVENT_QUEUE_HEAD(EQ) (0x011800UL + (EQ) * 0x8UL) -#define EVENT_QUEUE_HEAD_VAL 0x000000000000007fUL - -#define MSI_MAP(MSI) (0x020000UL + (MSI) * 0x8UL) -#define MSI_MAP_VALID 0x8000000000000000UL -#define MSI_MAP_EQWR_N 0x4000000000000000UL -#define MSI_MAP_EQNUM 0x000000000000003fUL - -#define MSI_CLEAR(MSI) (0x028000UL + (MSI) * 0x8UL) -#define MSI_CLEAR_EQWR_N 0x4000000000000000UL - -#define IMONDO_DATA0 0x02C000UL -#define IMONDO_DATA0_DATA 0xffffffffffffffc0UL - -#define IMONDO_DATA1 0x02C008UL -#define IMONDO_DATA1_DATA 0xffffffffffffffffUL - -#define MSI_32BIT_ADDR 0x034000UL -#define MSI_32BIT_ADDR_VAL 0x00000000ffff0000UL - -#define MSI_64BIT_ADDR 0x034008UL -#define MSI_64BIT_ADDR_VAL 0xffffffffffff0000UL - -static int pci_fire_get_head(struct pci_pbm_info *pbm, unsigned long msiqid, - unsigned long *head) -{ - *head = upa_readq(pbm->pbm_regs + EVENT_QUEUE_HEAD(msiqid)); - return 0; -} - -static int pci_fire_dequeue_msi(struct pci_pbm_info *pbm, unsigned long msiqid, - unsigned long *head, unsigned long *msi) -{ - unsigned long type_fmt, type, msi_num; - struct pci_msiq_entry *base, *ep; - - base = (pbm->msi_queues + ((msiqid - pbm->msiq_first) * 8192)); - ep = &base[*head]; - - if ((ep->word0 & MSIQ_WORD0_FMT_TYPE) == 0) - return 0; - - type_fmt = ((ep->word0 & MSIQ_WORD0_FMT_TYPE) >> - MSIQ_WORD0_FMT_TYPE_SHIFT); - type = (type_fmt >> 3); - if (unlikely(type != MSIQ_TYPE_MSI32 && - type != MSIQ_TYPE_MSI64)) - return -EINVAL; - - *msi = msi_num = ((ep->word0 & MSIQ_WORD0_DATA0) >> - MSIQ_WORD0_DATA0_SHIFT); - - upa_writeq(MSI_CLEAR_EQWR_N, pbm->pbm_regs + MSI_CLEAR(msi_num)); - - /* Clear the entry. */ - ep->word0 &= ~MSIQ_WORD0_FMT_TYPE; - - /* Go to next entry in ring. */ - (*head)++; - if (*head >= pbm->msiq_ent_count) - *head = 0; - - return 1; -} - -static int pci_fire_set_head(struct pci_pbm_info *pbm, unsigned long msiqid, - unsigned long head) -{ - upa_writeq(head, pbm->pbm_regs + EVENT_QUEUE_HEAD(msiqid)); - return 0; -} - -static int pci_fire_msi_setup(struct pci_pbm_info *pbm, unsigned long msiqid, - unsigned long msi, int is_msi64) -{ - u64 val; - - val = upa_readq(pbm->pbm_regs + MSI_MAP(msi)); - val &= ~(MSI_MAP_EQNUM); - val |= msiqid; - upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi)); - - upa_writeq(MSI_CLEAR_EQWR_N, pbm->pbm_regs + MSI_CLEAR(msi)); - - val = upa_readq(pbm->pbm_regs + MSI_MAP(msi)); - val |= MSI_MAP_VALID; - upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi)); - - return 0; -} - -static int pci_fire_msi_teardown(struct pci_pbm_info *pbm, unsigned long msi) -{ - unsigned long msiqid; - u64 val; - - val = upa_readq(pbm->pbm_regs + MSI_MAP(msi)); - msiqid = (val & MSI_MAP_EQNUM); - - val &= ~MSI_MAP_VALID; - - upa_writeq(val, pbm->pbm_regs + MSI_MAP(msi)); - - return 0; -} - -static int pci_fire_msiq_alloc(struct pci_pbm_info *pbm) -{ - unsigned long pages, order, i; - - order = get_order(512 * 1024); - pages = __get_free_pages(GFP_KERNEL | __GFP_COMP, order); - if (pages == 0UL) { - printk(KERN_ERR "MSI: Cannot allocate MSI queues (o=%lu).\n", - order); - return -ENOMEM; - } - memset((char *)pages, 0, PAGE_SIZE << order); - pbm->msi_queues = (void *) pages; - - upa_writeq((EVENT_QUEUE_BASE_ADDR_ALL_ONES | - __pa(pbm->msi_queues)), - pbm->pbm_regs + EVENT_QUEUE_BASE_ADDR_REG); - - upa_writeq(pbm->portid << 6, pbm->pbm_regs + IMONDO_DATA0); - upa_writeq(0, pbm->pbm_regs + IMONDO_DATA1); - - upa_writeq(pbm->msi32_start, pbm->pbm_regs + MSI_32BIT_ADDR); - upa_writeq(pbm->msi64_start, pbm->pbm_regs + MSI_64BIT_ADDR); - - for (i = 0; i < pbm->msiq_num; i++) { - upa_writeq(0, pbm->pbm_regs + EVENT_QUEUE_HEAD(i)); - upa_writeq(0, pbm->pbm_regs + EVENT_QUEUE_TAIL(i)); - } - - return 0; -} - -static void pci_fire_msiq_free(struct pci_pbm_info *pbm) -{ - unsigned long pages, order; - - order = get_order(512 * 1024); - pages = (unsigned long) pbm->msi_queues; - - free_pages(pages, order); - - pbm->msi_queues = NULL; -} - -static int pci_fire_msiq_build_irq(struct pci_pbm_info *pbm, - unsigned long msiqid, - unsigned long devino) -{ - unsigned long cregs = (unsigned long) pbm->pbm_regs; - unsigned long imap_reg, iclr_reg, int_ctrlr; - unsigned int virt_irq; - int fixup; - u64 val; - - imap_reg = cregs + (0x001000UL + (devino * 0x08UL)); - iclr_reg = cregs + (0x001400UL + (devino * 0x08UL)); - - /* XXX iterate amongst the 4 IRQ controllers XXX */ - int_ctrlr = (1UL << 6); - - val = upa_readq(imap_reg); - val |= (1UL << 63) | int_ctrlr; - upa_writeq(val, imap_reg); - - fixup = ((pbm->portid << 6) | devino) - int_ctrlr; - - virt_irq = build_irq(fixup, iclr_reg, imap_reg); - if (!virt_irq) - return -ENOMEM; - - upa_writeq(EVENT_QUEUE_CONTROL_SET_EN, - pbm->pbm_regs + EVENT_QUEUE_CONTROL_SET(msiqid)); - - return virt_irq; -} - -static const struct sparc64_msiq_ops pci_fire_msiq_ops = { - .get_head = pci_fire_get_head, - .dequeue_msi = pci_fire_dequeue_msi, - .set_head = pci_fire_set_head, - .msi_setup = pci_fire_msi_setup, - .msi_teardown = pci_fire_msi_teardown, - .msiq_alloc = pci_fire_msiq_alloc, - .msiq_free = pci_fire_msiq_free, - .msiq_build_irq = pci_fire_msiq_build_irq, -}; - -static void pci_fire_msi_init(struct pci_pbm_info *pbm) -{ - sparc64_pbm_msi_init(pbm, &pci_fire_msiq_ops); -} -#else /* CONFIG_PCI_MSI */ -static void pci_fire_msi_init(struct pci_pbm_info *pbm) -{ -} -#endif /* !(CONFIG_PCI_MSI) */ - -/* Based at pbm->controller_regs */ -#define FIRE_PARITY_CONTROL 0x470010UL -#define FIRE_PARITY_ENAB 0x8000000000000000UL -#define FIRE_FATAL_RESET_CTL 0x471028UL -#define FIRE_FATAL_RESET_SPARE 0x0000000004000000UL -#define FIRE_FATAL_RESET_MB 0x0000000002000000UL -#define FIRE_FATAL_RESET_CPE 0x0000000000008000UL -#define FIRE_FATAL_RESET_APE 0x0000000000004000UL -#define FIRE_FATAL_RESET_PIO 0x0000000000000040UL -#define FIRE_FATAL_RESET_JW 0x0000000000000004UL -#define FIRE_FATAL_RESET_JI 0x0000000000000002UL -#define FIRE_FATAL_RESET_JR 0x0000000000000001UL -#define FIRE_CORE_INTR_ENABLE 0x471800UL - -/* Based at pbm->pbm_regs */ -#define FIRE_TLU_CTRL 0x80000UL -#define FIRE_TLU_CTRL_TIM 0x00000000da000000UL -#define FIRE_TLU_CTRL_QDET 0x0000000000000100UL -#define FIRE_TLU_CTRL_CFG 0x0000000000000001UL -#define FIRE_TLU_DEV_CTRL 0x90008UL -#define FIRE_TLU_LINK_CTRL 0x90020UL -#define FIRE_TLU_LINK_CTRL_CLK 0x0000000000000040UL -#define FIRE_LPU_RESET 0xe2008UL -#define FIRE_LPU_LLCFG 0xe2200UL -#define FIRE_LPU_LLCFG_VC0 0x0000000000000100UL -#define FIRE_LPU_FCTRL_UCTRL 0xe2240UL -#define FIRE_LPU_FCTRL_UCTRL_N 0x0000000000000002UL -#define FIRE_LPU_FCTRL_UCTRL_P 0x0000000000000001UL -#define FIRE_LPU_TXL_FIFOP 0xe2430UL -#define FIRE_LPU_LTSSM_CFG2 0xe2788UL -#define FIRE_LPU_LTSSM_CFG3 0xe2790UL -#define FIRE_LPU_LTSSM_CFG4 0xe2798UL -#define FIRE_LPU_LTSSM_CFG5 0xe27a0UL -#define FIRE_DMC_IENAB 0x31800UL -#define FIRE_DMC_DBG_SEL_A 0x53000UL -#define FIRE_DMC_DBG_SEL_B 0x53008UL -#define FIRE_PEC_IENAB 0x51800UL - -static void pci_fire_hw_init(struct pci_pbm_info *pbm) -{ - u64 val; - - upa_writeq(FIRE_PARITY_ENAB, - pbm->controller_regs + FIRE_PARITY_CONTROL); - - upa_writeq((FIRE_FATAL_RESET_SPARE | - FIRE_FATAL_RESET_MB | - FIRE_FATAL_RESET_CPE | - FIRE_FATAL_RESET_APE | - FIRE_FATAL_RESET_PIO | - FIRE_FATAL_RESET_JW | - FIRE_FATAL_RESET_JI | - FIRE_FATAL_RESET_JR), - pbm->controller_regs + FIRE_FATAL_RESET_CTL); - - upa_writeq(~(u64)0, pbm->controller_regs + FIRE_CORE_INTR_ENABLE); - - val = upa_readq(pbm->pbm_regs + FIRE_TLU_CTRL); - val |= (FIRE_TLU_CTRL_TIM | - FIRE_TLU_CTRL_QDET | - FIRE_TLU_CTRL_CFG); - upa_writeq(val, pbm->pbm_regs + FIRE_TLU_CTRL); - upa_writeq(0, pbm->pbm_regs + FIRE_TLU_DEV_CTRL); - upa_writeq(FIRE_TLU_LINK_CTRL_CLK, - pbm->pbm_regs + FIRE_TLU_LINK_CTRL); - - upa_writeq(0, pbm->pbm_regs + FIRE_LPU_RESET); - upa_writeq(FIRE_LPU_LLCFG_VC0, pbm->pbm_regs + FIRE_LPU_LLCFG); - upa_writeq((FIRE_LPU_FCTRL_UCTRL_N | FIRE_LPU_FCTRL_UCTRL_P), - pbm->pbm_regs + FIRE_LPU_FCTRL_UCTRL); - upa_writeq(((0xffff << 16) | (0x0000 << 0)), - pbm->pbm_regs + FIRE_LPU_TXL_FIFOP); - upa_writeq(3000000, pbm->pbm_regs + FIRE_LPU_LTSSM_CFG2); - upa_writeq(500000, pbm->pbm_regs + FIRE_LPU_LTSSM_CFG3); - upa_writeq((2 << 16) | (140 << 8), - pbm->pbm_regs + FIRE_LPU_LTSSM_CFG4); - upa_writeq(0, pbm->pbm_regs + FIRE_LPU_LTSSM_CFG5); - - upa_writeq(~(u64)0, pbm->pbm_regs + FIRE_DMC_IENAB); - upa_writeq(0, pbm->pbm_regs + FIRE_DMC_DBG_SEL_A); - upa_writeq(0, pbm->pbm_regs + FIRE_DMC_DBG_SEL_B); - - upa_writeq(~(u64)0, pbm->pbm_regs + FIRE_PEC_IENAB); -} - -static int __init pci_fire_pbm_init(struct pci_pbm_info *pbm, - struct of_device *op, u32 portid) -{ - const struct linux_prom64_registers *regs; - struct device_node *dp = op->node; - int err; - - pbm->numa_node = -1; - - pbm->pci_ops = &sun4u_pci_ops; - pbm->config_space_reg_bits = 12; - - pbm->index = pci_num_pbms++; - - pbm->portid = portid; - pbm->op = op; - pbm->name = dp->full_name; - - regs = of_get_property(dp, "reg", NULL); - pbm->pbm_regs = regs[0].phys_addr; - pbm->controller_regs = regs[1].phys_addr - 0x410000UL; - - printk("%s: SUN4U PCIE Bus Module\n", pbm->name); - - pci_determine_mem_io_space(pbm); - - pci_get_pbm_props(pbm); - - pci_fire_hw_init(pbm); - - err = pci_fire_pbm_iommu_init(pbm); - if (err) - return err; - - pci_fire_msi_init(pbm); - - pbm->pci_bus = pci_scan_one_pbm(pbm, &op->dev); - - /* XXX register error interrupt handlers XXX */ - - pbm->next = pci_pbm_root; - pci_pbm_root = pbm; - - return 0; -} - -static int __devinit fire_probe(struct of_device *op, - const struct of_device_id *match) -{ - struct device_node *dp = op->node; - struct pci_pbm_info *pbm; - struct iommu *iommu; - u32 portid; - int err; - - portid = of_getintprop_default(dp, "portid", 0xff); - - err = -ENOMEM; - pbm = kzalloc(sizeof(*pbm), GFP_KERNEL); - if (!pbm) { - printk(KERN_ERR PFX "Cannot allocate pci_pbminfo.\n"); - goto out_err; - } - - iommu = kzalloc(sizeof(struct iommu), GFP_KERNEL); - if (!iommu) { - printk(KERN_ERR PFX "Cannot allocate PBM iommu.\n"); - goto out_free_controller; - } - - pbm->iommu = iommu; - - err = pci_fire_pbm_init(pbm, op, portid); - if (err) - goto out_free_iommu; - - dev_set_drvdata(&op->dev, pbm); - - return 0; - -out_free_iommu: - kfree(pbm->iommu); - -out_free_controller: - kfree(pbm); - -out_err: - return err; -} - -static struct of_device_id __initdata fire_match[] = { - { - .name = "pci", - .compatible = "pciex108e,80f0", - }, - {}, -}; - -static struct of_platform_driver fire_driver = { - .name = DRIVER_NAME, - .match_table = fire_match, - .probe = fire_probe, -}; - -static int __init fire_init(void) -{ - return of_register_driver(&fire_driver, &of_bus_type); -} - -subsys_initcall(fire_init); diff --git a/arch/sparc64/kernel/pci_impl.h b/arch/sparc64/kernel/pci_impl.h deleted file mode 100644 index 03186824327e..000000000000 --- a/arch/sparc64/kernel/pci_impl.h +++ /dev/null @@ -1,185 +0,0 @@ -/* pci_impl.h: Helper definitions for PCI controller support. - * - * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net) - */ - -#ifndef PCI_IMPL_H -#define PCI_IMPL_H - -#include <linux/types.h> -#include <linux/spinlock.h> -#include <linux/pci.h> -#include <linux/msi.h> -#include <linux/of_device.h> -#include <asm/io.h> -#include <asm/prom.h> -#include <asm/iommu.h> - -/* The abstraction used here is that there are PCI controllers, - * each with one (Sabre) or two (PSYCHO/SCHIZO) PCI bus modules - * underneath. Each PCI bus module uses an IOMMU (shared by both - * PBMs of a controller, or per-PBM), and if a streaming buffer - * is present, each PCI bus module has it's own. (ie. the IOMMU - * might be shared between PBMs, the STC is never shared) - * Furthermore, each PCI bus module controls it's own autonomous - * PCI bus. - */ - -#define PCI_STC_FLUSHFLAG_INIT(STC) \ - (*((STC)->strbuf_flushflag) = 0UL) -#define PCI_STC_FLUSHFLAG_SET(STC) \ - (*((STC)->strbuf_flushflag) != 0UL) - -#ifdef CONFIG_PCI_MSI -struct pci_pbm_info; -struct sparc64_msiq_ops { - int (*get_head)(struct pci_pbm_info *pbm, unsigned long msiqid, - unsigned long *head); - int (*dequeue_msi)(struct pci_pbm_info *pbm, unsigned long msiqid, - unsigned long *head, unsigned long *msi); - int (*set_head)(struct pci_pbm_info *pbm, unsigned long msiqid, - unsigned long head); - int (*msi_setup)(struct pci_pbm_info *pbm, unsigned long msiqid, - unsigned long msi, int is_msi64); - int (*msi_teardown)(struct pci_pbm_info *pbm, unsigned long msi); - int (*msiq_alloc)(struct pci_pbm_info *pbm); - void (*msiq_free)(struct pci_pbm_info *pbm); - int (*msiq_build_irq)(struct pci_pbm_info *pbm, unsigned long msiqid, - unsigned long devino); -}; - -extern void sparc64_pbm_msi_init(struct pci_pbm_info *pbm, - const struct sparc64_msiq_ops *ops); - -struct sparc64_msiq_cookie { - struct pci_pbm_info *pbm; - unsigned long msiqid; -}; -#endif - -struct pci_pbm_info { - struct pci_pbm_info *next; - struct pci_pbm_info *sibling; - int index; - - /* Physical address base of controller registers. */ - unsigned long controller_regs; - - /* Physical address base of PBM registers. */ - unsigned long pbm_regs; - - /* Physical address of DMA sync register, if any. */ - unsigned long sync_reg; - - /* Opaque 32-bit system bus Port ID. */ - u32 portid; - - /* Opaque 32-bit handle used for hypervisor calls. */ - u32 devhandle; - - /* Chipset version information. */ - int chip_type; -#define PBM_CHIP_TYPE_SABRE 1 -#define PBM_CHIP_TYPE_PSYCHO 2 -#define PBM_CHIP_TYPE_SCHIZO 3 -#define PBM_CHIP_TYPE_SCHIZO_PLUS 4 -#define PBM_CHIP_TYPE_TOMATILLO 5 - int chip_version; - int chip_revision; - - /* Name used for top-level resources. */ - char *name; - - /* OBP specific information. */ - struct of_device *op; - u64 ino_bitmap; - - /* PBM I/O and Memory space resources. */ - struct resource io_space; - struct resource mem_space; - - /* Base of PCI Config space, can be per-PBM or shared. */ - unsigned long config_space; - - /* This will be 12 on PCI-E controllers, 8 elsewhere. */ - unsigned long config_space_reg_bits; - - unsigned long pci_afsr; - unsigned long pci_afar; - unsigned long pci_csr; - - /* State of 66MHz capabilities on this PBM. */ - int is_66mhz_capable; - int all_devs_66mhz; - -#ifdef CONFIG_PCI_MSI - /* MSI info. */ - u32 msiq_num; - u32 msiq_ent_count; - u32 msiq_first; - u32 msiq_first_devino; - u32 msiq_rotor; - struct sparc64_msiq_cookie *msiq_irq_cookies; - u32 msi_num; - u32 msi_first; - u32 msi_data_mask; - u32 msix_data_width; - u64 msi32_start; - u64 msi64_start; - u32 msi32_len; - u32 msi64_len; - void *msi_queues; - unsigned long *msi_bitmap; - unsigned int *msi_irq_table; - int (*setup_msi_irq)(unsigned int *virt_irq_p, struct pci_dev *pdev, - struct msi_desc *entry); - void (*teardown_msi_irq)(unsigned int virt_irq, struct pci_dev *pdev); - const struct sparc64_msiq_ops *msi_ops; -#endif /* !(CONFIG_PCI_MSI) */ - - /* This PBM's streaming buffer. */ - struct strbuf stc; - - /* IOMMU state, potentially shared by both PBM segments. */ - struct iommu *iommu; - - /* Now things for the actual PCI bus probes. */ - unsigned int pci_first_busno; - unsigned int pci_last_busno; - struct pci_bus *pci_bus; - struct pci_ops *pci_ops; - - int numa_node; -}; - -extern struct pci_pbm_info *pci_pbm_root; - -extern int pci_num_pbms; - -/* PCI bus scanning and fixup support. */ -extern void pci_get_pbm_props(struct pci_pbm_info *pbm); -extern struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm, - struct device *parent); -extern void pci_determine_mem_io_space(struct pci_pbm_info *pbm); - -/* Error reporting support. */ -extern void pci_scan_for_target_abort(struct pci_pbm_info *, struct pci_bus *); -extern void pci_scan_for_master_abort(struct pci_pbm_info *, struct pci_bus *); -extern void pci_scan_for_parity_error(struct pci_pbm_info *, struct pci_bus *); - -/* Configuration space access. */ -extern void pci_config_read8(u8 *addr, u8 *ret); -extern void pci_config_read16(u16 *addr, u16 *ret); -extern void pci_config_read32(u32 *addr, u32 *ret); -extern void pci_config_write8(u8 *addr, u8 val); -extern void pci_config_write16(u16 *addr, u16 val); -extern void pci_config_write32(u32 *addr, u32 val); - -extern struct pci_ops sun4u_pci_ops; -extern struct pci_ops sun4v_pci_ops; - -extern volatile int pci_poke_in_progress; -extern volatile int pci_poke_cpu; -extern volatile int pci_poke_faulted; - -#endif /* !(PCI_IMPL_H) */ diff --git a/arch/sparc64/kernel/pci_msi.c b/arch/sparc64/kernel/pci_msi.c deleted file mode 100644 index 2e680f34f727..000000000000 --- a/arch/sparc64/kernel/pci_msi.c +++ /dev/null @@ -1,447 +0,0 @@ -/* pci_msi.c: Sparc64 MSI support common layer. - * - * Copyright (C) 2007 David S. Miller (davem@davemloft.net) - */ -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/irq.h> - -#include "pci_impl.h" - -static irqreturn_t sparc64_msiq_interrupt(int irq, void *cookie) -{ - struct sparc64_msiq_cookie *msiq_cookie = cookie; - struct pci_pbm_info *pbm = msiq_cookie->pbm; - unsigned long msiqid = msiq_cookie->msiqid; - const struct sparc64_msiq_ops *ops; - unsigned long orig_head, head; - int err; - - ops = pbm->msi_ops; - - err = ops->get_head(pbm, msiqid, &head); - if (unlikely(err < 0)) - goto err_get_head; - - orig_head = head; - for (;;) { - unsigned long msi; - - err = ops->dequeue_msi(pbm, msiqid, &head, &msi); - if (likely(err > 0)) { - struct irq_desc *desc; - unsigned int virt_irq; - - virt_irq = pbm->msi_irq_table[msi - pbm->msi_first]; - desc = irq_desc + virt_irq; - - desc->handle_irq(virt_irq, desc); - } - - if (unlikely(err < 0)) - goto err_dequeue; - - if (err == 0) - break; - } - if (likely(head != orig_head)) { - err = ops->set_head(pbm, msiqid, head); - if (unlikely(err < 0)) - goto err_set_head; - } - return IRQ_HANDLED; - -err_get_head: - printk(KERN_EMERG "MSI: Get head on msiqid[%lu] gives error %d\n", - msiqid, err); - goto err_out; - -err_dequeue: - printk(KERN_EMERG "MSI: Dequeue head[%lu] from msiqid[%lu] " - "gives error %d\n", - head, msiqid, err); - goto err_out; - -err_set_head: - printk(KERN_EMERG "MSI: Set head[%lu] on msiqid[%lu] " - "gives error %d\n", - head, msiqid, err); - goto err_out; - -err_out: - return IRQ_NONE; -} - -static u32 pick_msiq(struct pci_pbm_info *pbm) -{ - static DEFINE_SPINLOCK(rotor_lock); - unsigned long flags; - u32 ret, rotor; - - spin_lock_irqsave(&rotor_lock, flags); - - rotor = pbm->msiq_rotor; - ret = pbm->msiq_first + rotor; - - if (++rotor >= pbm->msiq_num) - rotor = 0; - pbm->msiq_rotor = rotor; - - spin_unlock_irqrestore(&rotor_lock, flags); - - return ret; -} - - -static int alloc_msi(struct pci_pbm_info *pbm) -{ - int i; - - for (i = 0; i < pbm->msi_num; i++) { - if (!test_and_set_bit(i, pbm->msi_bitmap)) - return i + pbm->msi_first; - } - - return -ENOENT; -} - -static void free_msi(struct pci_pbm_info *pbm, int msi_num) -{ - msi_num -= pbm->msi_first; - clear_bit(msi_num, pbm->msi_bitmap); -} - -static struct irq_chip msi_irq = { - .typename = "PCI-MSI", - .mask = mask_msi_irq, - .unmask = unmask_msi_irq, - .enable = unmask_msi_irq, - .disable = mask_msi_irq, - /* XXX affinity XXX */ -}; - -static int sparc64_setup_msi_irq(unsigned int *virt_irq_p, - struct pci_dev *pdev, - struct msi_desc *entry) -{ - struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; - const struct sparc64_msiq_ops *ops = pbm->msi_ops; - struct msi_msg msg; - int msi, err; - u32 msiqid; - - *virt_irq_p = virt_irq_alloc(0, 0); - err = -ENOMEM; - if (!*virt_irq_p) - goto out_err; - - set_irq_chip_and_handler_name(*virt_irq_p, &msi_irq, - handle_simple_irq, "MSI"); - - err = alloc_msi(pbm); - if (unlikely(err < 0)) - goto out_virt_irq_free; - - msi = err; - - msiqid = pick_msiq(pbm); - - err = ops->msi_setup(pbm, msiqid, msi, - (entry->msi_attrib.is_64 ? 1 : 0)); - if (err) - goto out_msi_free; - - pbm->msi_irq_table[msi - pbm->msi_first] = *virt_irq_p; - - if (entry->msi_attrib.is_64) { - msg.address_hi = pbm->msi64_start >> 32; - msg.address_lo = pbm->msi64_start & 0xffffffff; - } else { - msg.address_hi = 0; - msg.address_lo = pbm->msi32_start; - } - msg.data = msi; - - set_irq_msi(*virt_irq_p, entry); - write_msi_msg(*virt_irq_p, &msg); - - return 0; - -out_msi_free: - free_msi(pbm, msi); - -out_virt_irq_free: - set_irq_chip(*virt_irq_p, NULL); - virt_irq_free(*virt_irq_p); - *virt_irq_p = 0; - -out_err: - return err; -} - -static void sparc64_teardown_msi_irq(unsigned int virt_irq, - struct pci_dev *pdev) -{ - struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; - const struct sparc64_msiq_ops *ops = pbm->msi_ops; - unsigned int msi_num; - int i, err; - - for (i = 0; i < pbm->msi_num; i++) { - if (pbm->msi_irq_table[i] == virt_irq) - break; - } - if (i >= pbm->msi_num) { - printk(KERN_ERR "%s: teardown: No MSI for irq %u\n", - pbm->name, virt_irq); - return; - } - - msi_num = pbm->msi_first + i; - pbm->msi_irq_table[i] = ~0U; - - err = ops->msi_teardown(pbm, msi_num); - if (err) { - printk(KERN_ERR "%s: teardown: ops->teardown() on MSI %u, " - "irq %u, gives error %d\n", - pbm->name, msi_num, virt_irq, err); - return; - } - - free_msi(pbm, msi_num); - - set_irq_chip(virt_irq, NULL); - virt_irq_free(virt_irq); -} - -static int msi_bitmap_alloc(struct pci_pbm_info *pbm) -{ - unsigned long size, bits_per_ulong; - - bits_per_ulong = sizeof(unsigned long) * 8; - size = (pbm->msi_num + (bits_per_ulong - 1)) & ~(bits_per_ulong - 1); - size /= 8; - BUG_ON(size % sizeof(unsigned long)); - - pbm->msi_bitmap = kzalloc(size, GFP_KERNEL); - if (!pbm->msi_bitmap) - return -ENOMEM; - - return 0; -} - -static void msi_bitmap_free(struct pci_pbm_info *pbm) -{ - kfree(pbm->msi_bitmap); - pbm->msi_bitmap = NULL; -} - -static int msi_table_alloc(struct pci_pbm_info *pbm) -{ - int size, i; - - size = pbm->msiq_num * sizeof(struct sparc64_msiq_cookie); - pbm->msiq_irq_cookies = kzalloc(size, GFP_KERNEL); - if (!pbm->msiq_irq_cookies) - return -ENOMEM; - - for (i = 0; i < pbm->msiq_num; i++) { - struct sparc64_msiq_cookie *p; - - p = &pbm->msiq_irq_cookies[i]; - p->pbm = pbm; - p->msiqid = pbm->msiq_first + i; - } - - size = pbm->msi_num * sizeof(unsigned int); - pbm->msi_irq_table = kzalloc(size, GFP_KERNEL); - if (!pbm->msi_irq_table) { - kfree(pbm->msiq_irq_cookies); - pbm->msiq_irq_cookies = NULL; - return -ENOMEM; - } - - return 0; -} - -static void msi_table_free(struct pci_pbm_info *pbm) -{ - kfree(pbm->msiq_irq_cookies); - pbm->msiq_irq_cookies = NULL; - - kfree(pbm->msi_irq_table); - pbm->msi_irq_table = NULL; -} - -static int bringup_one_msi_queue(struct pci_pbm_info *pbm, - const struct sparc64_msiq_ops *ops, - unsigned long msiqid, - unsigned long devino) -{ - int irq = ops->msiq_build_irq(pbm, msiqid, devino); - int err, nid; - - if (irq < 0) - return irq; - - nid = pbm->numa_node; - if (nid != -1) { - cpumask_t numa_mask = node_to_cpumask(nid); - - irq_set_affinity(irq, numa_mask); - } - err = request_irq(irq, sparc64_msiq_interrupt, 0, - "MSIQ", - &pbm->msiq_irq_cookies[msiqid - pbm->msiq_first]); - if (err) - return err; - - return 0; -} - -static int sparc64_bringup_msi_queues(struct pci_pbm_info *pbm, - const struct sparc64_msiq_ops *ops) -{ - int i; - - for (i = 0; i < pbm->msiq_num; i++) { - unsigned long msiqid = i + pbm->msiq_first; - unsigned long devino = i + pbm->msiq_first_devino; - int err; - - err = bringup_one_msi_queue(pbm, ops, msiqid, devino); - if (err) - return err; - } - - return 0; -} - -void sparc64_pbm_msi_init(struct pci_pbm_info *pbm, - const struct sparc64_msiq_ops *ops) -{ - const u32 *val; - int len; - - val = of_get_property(pbm->op->node, "#msi-eqs", &len); - if (!val || len != 4) - goto no_msi; - pbm->msiq_num = *val; - if (pbm->msiq_num) { - const struct msiq_prop { - u32 first_msiq; - u32 num_msiq; - u32 first_devino; - } *mqp; - const struct msi_range_prop { - u32 first_msi; - u32 num_msi; - } *mrng; - const struct addr_range_prop { - u32 msi32_high; - u32 msi32_low; - u32 msi32_len; - u32 msi64_high; - u32 msi64_low; - u32 msi64_len; - } *arng; - - val = of_get_property(pbm->op->node, "msi-eq-size", &len); - if (!val || len != 4) - goto no_msi; - - pbm->msiq_ent_count = *val; - - mqp = of_get_property(pbm->op->node, - "msi-eq-to-devino", &len); - if (!mqp) - mqp = of_get_property(pbm->op->node, - "msi-eq-devino", &len); - if (!mqp || len != sizeof(struct msiq_prop)) - goto no_msi; - - pbm->msiq_first = mqp->first_msiq; - pbm->msiq_first_devino = mqp->first_devino; - - val = of_get_property(pbm->op->node, "#msi", &len); - if (!val || len != 4) - goto no_msi; - pbm->msi_num = *val; - - mrng = of_get_property(pbm->op->node, "msi-ranges", &len); - if (!mrng || len != sizeof(struct msi_range_prop)) - goto no_msi; - pbm->msi_first = mrng->first_msi; - - val = of_get_property(pbm->op->node, "msi-data-mask", &len); - if (!val || len != 4) - goto no_msi; - pbm->msi_data_mask = *val; - - val = of_get_property(pbm->op->node, "msix-data-width", &len); - if (!val || len != 4) - goto no_msi; - pbm->msix_data_width = *val; - - arng = of_get_property(pbm->op->node, "msi-address-ranges", - &len); - if (!arng || len != sizeof(struct addr_range_prop)) - goto no_msi; - pbm->msi32_start = ((u64)arng->msi32_high << 32) | - (u64) arng->msi32_low; - pbm->msi64_start = ((u64)arng->msi64_high << 32) | - (u64) arng->msi64_low; - pbm->msi32_len = arng->msi32_len; - pbm->msi64_len = arng->msi64_len; - - if (msi_bitmap_alloc(pbm)) - goto no_msi; - - if (msi_table_alloc(pbm)) { - msi_bitmap_free(pbm); - goto no_msi; - } - - if (ops->msiq_alloc(pbm)) { - msi_table_free(pbm); - msi_bitmap_free(pbm); - goto no_msi; - } - - if (sparc64_bringup_msi_queues(pbm, ops)) { - ops->msiq_free(pbm); - msi_table_free(pbm); - msi_bitmap_free(pbm); - goto no_msi; - } - - printk(KERN_INFO "%s: MSI Queue first[%u] num[%u] count[%u] " - "devino[0x%x]\n", - pbm->name, - pbm->msiq_first, pbm->msiq_num, - pbm->msiq_ent_count, - pbm->msiq_first_devino); - printk(KERN_INFO "%s: MSI first[%u] num[%u] mask[0x%x] " - "width[%u]\n", - pbm->name, - pbm->msi_first, pbm->msi_num, pbm->msi_data_mask, - pbm->msix_data_width); - printk(KERN_INFO "%s: MSI addr32[0x%lx:0x%x] " - "addr64[0x%lx:0x%x]\n", - pbm->name, - pbm->msi32_start, pbm->msi32_len, - pbm->msi64_start, pbm->msi64_len); - printk(KERN_INFO "%s: MSI queues at RA [%016lx]\n", - pbm->name, - __pa(pbm->msi_queues)); - - pbm->msi_ops = ops; - pbm->setup_msi_irq = sparc64_setup_msi_irq; - pbm->teardown_msi_irq = sparc64_teardown_msi_irq; - } - return; - -no_msi: - pbm->msiq_num = 0; - printk(KERN_INFO "%s: No MSI support.\n", pbm->name); -} diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c deleted file mode 100644 index dfb3ec892987..000000000000 --- a/arch/sparc64/kernel/pci_psycho.c +++ /dev/null @@ -1,618 +0,0 @@ -/* pci_psycho.c: PSYCHO/U2P specific PCI controller support. - * - * Copyright (C) 1997, 1998, 1999, 2007 David S. Miller (davem@davemloft.net) - * Copyright (C) 1998, 1999 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 1999 Jakub Jelinek (jakub@redhat.com) - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/of_device.h> - -#include <asm/iommu.h> -#include <asm/irq.h> -#include <asm/starfire.h> -#include <asm/prom.h> -#include <asm/upa.h> - -#include "pci_impl.h" -#include "iommu_common.h" -#include "psycho_common.h" - -#define DRIVER_NAME "psycho" -#define PFX DRIVER_NAME ": " - -/* Misc. PSYCHO PCI controller register offsets and definitions. */ -#define PSYCHO_CONTROL 0x0010UL -#define PSYCHO_CONTROL_IMPL 0xf000000000000000UL /* Implementation of this PSYCHO*/ -#define PSYCHO_CONTROL_VER 0x0f00000000000000UL /* Version of this PSYCHO */ -#define PSYCHO_CONTROL_MID 0x00f8000000000000UL /* UPA Module ID of PSYCHO */ -#define PSYCHO_CONTROL_IGN 0x0007c00000000000UL /* Interrupt Group Number */ -#define PSYCHO_CONTROL_RESV 0x00003ffffffffff0UL /* Reserved */ -#define PSYCHO_CONTROL_APCKEN 0x0000000000000008UL /* Address Parity Check Enable */ -#define PSYCHO_CONTROL_APERR 0x0000000000000004UL /* Incoming System Addr Parerr */ -#define PSYCHO_CONTROL_IAP 0x0000000000000002UL /* Invert UPA Parity */ -#define PSYCHO_CONTROL_MODE 0x0000000000000001UL /* PSYCHO clock mode */ -#define PSYCHO_PCIA_CTRL 0x2000UL -#define PSYCHO_PCIB_CTRL 0x4000UL -#define PSYCHO_PCICTRL_RESV1 0xfffffff000000000UL /* Reserved */ -#define PSYCHO_PCICTRL_SBH_ERR 0x0000000800000000UL /* Streaming byte hole error */ -#define PSYCHO_PCICTRL_SERR 0x0000000400000000UL /* SERR signal asserted */ -#define PSYCHO_PCICTRL_SPEED 0x0000000200000000UL /* PCI speed (1 is U2P clock) */ -#define PSYCHO_PCICTRL_RESV2 0x00000001ffc00000UL /* Reserved */ -#define PSYCHO_PCICTRL_ARB_PARK 0x0000000000200000UL /* PCI arbitration parking */ -#define PSYCHO_PCICTRL_RESV3 0x00000000001ff800UL /* Reserved */ -#define PSYCHO_PCICTRL_SBH_INT 0x0000000000000400UL /* Streaming byte hole int enab */ -#define PSYCHO_PCICTRL_WEN 0x0000000000000200UL /* Power Mgmt Wake Enable */ -#define PSYCHO_PCICTRL_EEN 0x0000000000000100UL /* PCI Error Interrupt Enable */ -#define PSYCHO_PCICTRL_RESV4 0x00000000000000c0UL /* Reserved */ -#define PSYCHO_PCICTRL_AEN 0x000000000000003fUL /* PCI DVMA Arbitration Enable */ - -/* PSYCHO error handling support. */ - -/* Helper function of IOMMU error checking, which checks out - * the state of the streaming buffers. The IOMMU lock is - * held when this is called. - * - * For the PCI error case we know which PBM (and thus which - * streaming buffer) caused the error, but for the uncorrectable - * error case we do not. So we always check both streaming caches. - */ -#define PSYCHO_STRBUF_CONTROL_A 0x2800UL -#define PSYCHO_STRBUF_CONTROL_B 0x4800UL -#define PSYCHO_STRBUF_CTRL_LPTR 0x00000000000000f0UL /* LRU Lock Pointer */ -#define PSYCHO_STRBUF_CTRL_LENAB 0x0000000000000008UL /* LRU Lock Enable */ -#define PSYCHO_STRBUF_CTRL_RRDIS 0x0000000000000004UL /* Rerun Disable */ -#define PSYCHO_STRBUF_CTRL_DENAB 0x0000000000000002UL /* Diagnostic Mode Enable */ -#define PSYCHO_STRBUF_CTRL_ENAB 0x0000000000000001UL /* Streaming Buffer Enable */ -#define PSYCHO_STRBUF_FLUSH_A 0x2808UL -#define PSYCHO_STRBUF_FLUSH_B 0x4808UL -#define PSYCHO_STRBUF_FSYNC_A 0x2810UL -#define PSYCHO_STRBUF_FSYNC_B 0x4810UL -#define PSYCHO_STC_DATA_A 0xb000UL -#define PSYCHO_STC_DATA_B 0xc000UL -#define PSYCHO_STC_ERR_A 0xb400UL -#define PSYCHO_STC_ERR_B 0xc400UL -#define PSYCHO_STC_TAG_A 0xb800UL -#define PSYCHO_STC_TAG_B 0xc800UL -#define PSYCHO_STC_LINE_A 0xb900UL -#define PSYCHO_STC_LINE_B 0xc900UL - -/* When an Uncorrectable Error or a PCI Error happens, we - * interrogate the IOMMU state to see if it is the cause. - */ -#define PSYCHO_IOMMU_CONTROL 0x0200UL -#define PSYCHO_IOMMU_CTRL_RESV 0xfffffffff9000000UL /* Reserved */ -#define PSYCHO_IOMMU_CTRL_XLTESTAT 0x0000000006000000UL /* Translation Error Status */ -#define PSYCHO_IOMMU_CTRL_XLTEERR 0x0000000001000000UL /* Translation Error encountered */ -#define PSYCHO_IOMMU_CTRL_LCKEN 0x0000000000800000UL /* Enable translation locking */ -#define PSYCHO_IOMMU_CTRL_LCKPTR 0x0000000000780000UL /* Translation lock pointer */ -#define PSYCHO_IOMMU_CTRL_TSBSZ 0x0000000000070000UL /* TSB Size */ -#define PSYCHO_IOMMU_TSBSZ_1K 0x0000000000000000UL /* TSB Table 1024 8-byte entries */ -#define PSYCHO_IOMMU_TSBSZ_2K 0x0000000000010000UL /* TSB Table 2048 8-byte entries */ -#define PSYCHO_IOMMU_TSBSZ_4K 0x0000000000020000UL /* TSB Table 4096 8-byte entries */ -#define PSYCHO_IOMMU_TSBSZ_8K 0x0000000000030000UL /* TSB Table 8192 8-byte entries */ -#define PSYCHO_IOMMU_TSBSZ_16K 0x0000000000040000UL /* TSB Table 16k 8-byte entries */ -#define PSYCHO_IOMMU_TSBSZ_32K 0x0000000000050000UL /* TSB Table 32k 8-byte entries */ -#define PSYCHO_IOMMU_TSBSZ_64K 0x0000000000060000UL /* TSB Table 64k 8-byte entries */ -#define PSYCHO_IOMMU_TSBSZ_128K 0x0000000000070000UL /* TSB Table 128k 8-byte entries */ -#define PSYCHO_IOMMU_CTRL_RESV2 0x000000000000fff8UL /* Reserved */ -#define PSYCHO_IOMMU_CTRL_TBWSZ 0x0000000000000004UL /* Assumed page size, 0=8k 1=64k */ -#define PSYCHO_IOMMU_CTRL_DENAB 0x0000000000000002UL /* Diagnostic mode enable */ -#define PSYCHO_IOMMU_CTRL_ENAB 0x0000000000000001UL /* IOMMU Enable */ -#define PSYCHO_IOMMU_TSBBASE 0x0208UL -#define PSYCHO_IOMMU_FLUSH 0x0210UL -#define PSYCHO_IOMMU_TAG 0xa580UL -#define PSYCHO_IOMMU_DATA 0xa600UL - -/* Uncorrectable Errors. Cause of the error and the address are - * recorded in the UE_AFSR and UE_AFAR of PSYCHO. They are errors - * relating to UPA interface transactions. - */ -#define PSYCHO_UE_AFSR 0x0030UL -#define PSYCHO_UEAFSR_PPIO 0x8000000000000000UL /* Primary PIO is cause */ -#define PSYCHO_UEAFSR_PDRD 0x4000000000000000UL /* Primary DVMA read is cause */ -#define PSYCHO_UEAFSR_PDWR 0x2000000000000000UL /* Primary DVMA write is cause */ -#define PSYCHO_UEAFSR_SPIO 0x1000000000000000UL /* Secondary PIO is cause */ -#define PSYCHO_UEAFSR_SDRD 0x0800000000000000UL /* Secondary DVMA read is cause */ -#define PSYCHO_UEAFSR_SDWR 0x0400000000000000UL /* Secondary DVMA write is cause*/ -#define PSYCHO_UEAFSR_RESV1 0x03ff000000000000UL /* Reserved */ -#define PSYCHO_UEAFSR_BMSK 0x0000ffff00000000UL /* Bytemask of failed transfer */ -#define PSYCHO_UEAFSR_DOFF 0x00000000e0000000UL /* Doubleword Offset */ -#define PSYCHO_UEAFSR_MID 0x000000001f000000UL /* UPA MID causing the fault */ -#define PSYCHO_UEAFSR_BLK 0x0000000000800000UL /* Trans was block operation */ -#define PSYCHO_UEAFSR_RESV2 0x00000000007fffffUL /* Reserved */ -#define PSYCHO_UE_AFAR 0x0038UL - -static irqreturn_t psycho_ue_intr(int irq, void *dev_id) -{ - struct pci_pbm_info *pbm = dev_id; - unsigned long afsr_reg = pbm->controller_regs + PSYCHO_UE_AFSR; - unsigned long afar_reg = pbm->controller_regs + PSYCHO_UE_AFAR; - unsigned long afsr, afar, error_bits; - int reported; - - /* Latch uncorrectable error status. */ - afar = upa_readq(afar_reg); - afsr = upa_readq(afsr_reg); - - /* Clear the primary/secondary error status bits. */ - error_bits = afsr & - (PSYCHO_UEAFSR_PPIO | PSYCHO_UEAFSR_PDRD | PSYCHO_UEAFSR_PDWR | - PSYCHO_UEAFSR_SPIO | PSYCHO_UEAFSR_SDRD | PSYCHO_UEAFSR_SDWR); - if (!error_bits) - return IRQ_NONE; - upa_writeq(error_bits, afsr_reg); - - /* Log the error. */ - printk("%s: Uncorrectable Error, primary error type[%s]\n", - pbm->name, - (((error_bits & PSYCHO_UEAFSR_PPIO) ? - "PIO" : - ((error_bits & PSYCHO_UEAFSR_PDRD) ? - "DMA Read" : - ((error_bits & PSYCHO_UEAFSR_PDWR) ? - "DMA Write" : "???"))))); - printk("%s: bytemask[%04lx] dword_offset[%lx] UPA_MID[%02lx] was_block(%d)\n", - pbm->name, - (afsr & PSYCHO_UEAFSR_BMSK) >> 32UL, - (afsr & PSYCHO_UEAFSR_DOFF) >> 29UL, - (afsr & PSYCHO_UEAFSR_MID) >> 24UL, - ((afsr & PSYCHO_UEAFSR_BLK) ? 1 : 0)); - printk("%s: UE AFAR [%016lx]\n", pbm->name, afar); - printk("%s: UE Secondary errors [", pbm->name); - reported = 0; - if (afsr & PSYCHO_UEAFSR_SPIO) { - reported++; - printk("(PIO)"); - } - if (afsr & PSYCHO_UEAFSR_SDRD) { - reported++; - printk("(DMA Read)"); - } - if (afsr & PSYCHO_UEAFSR_SDWR) { - reported++; - printk("(DMA Write)"); - } - if (!reported) - printk("(none)"); - printk("]\n"); - - /* Interrogate both IOMMUs for error status. */ - psycho_check_iommu_error(pbm, afsr, afar, UE_ERR); - if (pbm->sibling) - psycho_check_iommu_error(pbm->sibling, afsr, afar, UE_ERR); - - return IRQ_HANDLED; -} - -/* Correctable Errors. */ -#define PSYCHO_CE_AFSR 0x0040UL -#define PSYCHO_CEAFSR_PPIO 0x8000000000000000UL /* Primary PIO is cause */ -#define PSYCHO_CEAFSR_PDRD 0x4000000000000000UL /* Primary DVMA read is cause */ -#define PSYCHO_CEAFSR_PDWR 0x2000000000000000UL /* Primary DVMA write is cause */ -#define PSYCHO_CEAFSR_SPIO 0x1000000000000000UL /* Secondary PIO is cause */ -#define PSYCHO_CEAFSR_SDRD 0x0800000000000000UL /* Secondary DVMA read is cause */ -#define PSYCHO_CEAFSR_SDWR 0x0400000000000000UL /* Secondary DVMA write is cause*/ -#define PSYCHO_CEAFSR_RESV1 0x0300000000000000UL /* Reserved */ -#define PSYCHO_CEAFSR_ESYND 0x00ff000000000000UL /* Syndrome Bits */ -#define PSYCHO_CEAFSR_BMSK 0x0000ffff00000000UL /* Bytemask of failed transfer */ -#define PSYCHO_CEAFSR_DOFF 0x00000000e0000000UL /* Double Offset */ -#define PSYCHO_CEAFSR_MID 0x000000001f000000UL /* UPA MID causing the fault */ -#define PSYCHO_CEAFSR_BLK 0x0000000000800000UL /* Trans was block operation */ -#define PSYCHO_CEAFSR_RESV2 0x00000000007fffffUL /* Reserved */ -#define PSYCHO_CE_AFAR 0x0040UL - -static irqreturn_t psycho_ce_intr(int irq, void *dev_id) -{ - struct pci_pbm_info *pbm = dev_id; - unsigned long afsr_reg = pbm->controller_regs + PSYCHO_CE_AFSR; - unsigned long afar_reg = pbm->controller_regs + PSYCHO_CE_AFAR; - unsigned long afsr, afar, error_bits; - int reported; - - /* Latch error status. */ - afar = upa_readq(afar_reg); - afsr = upa_readq(afsr_reg); - - /* Clear primary/secondary error status bits. */ - error_bits = afsr & - (PSYCHO_CEAFSR_PPIO | PSYCHO_CEAFSR_PDRD | PSYCHO_CEAFSR_PDWR | - PSYCHO_CEAFSR_SPIO | PSYCHO_CEAFSR_SDRD | PSYCHO_CEAFSR_SDWR); - if (!error_bits) - return IRQ_NONE; - upa_writeq(error_bits, afsr_reg); - - /* Log the error. */ - printk("%s: Correctable Error, primary error type[%s]\n", - pbm->name, - (((error_bits & PSYCHO_CEAFSR_PPIO) ? - "PIO" : - ((error_bits & PSYCHO_CEAFSR_PDRD) ? - "DMA Read" : - ((error_bits & PSYCHO_CEAFSR_PDWR) ? - "DMA Write" : "???"))))); - - /* XXX Use syndrome and afar to print out module string just like - * XXX UDB CE trap handler does... -DaveM - */ - printk("%s: syndrome[%02lx] bytemask[%04lx] dword_offset[%lx] " - "UPA_MID[%02lx] was_block(%d)\n", - pbm->name, - (afsr & PSYCHO_CEAFSR_ESYND) >> 48UL, - (afsr & PSYCHO_CEAFSR_BMSK) >> 32UL, - (afsr & PSYCHO_CEAFSR_DOFF) >> 29UL, - (afsr & PSYCHO_CEAFSR_MID) >> 24UL, - ((afsr & PSYCHO_CEAFSR_BLK) ? 1 : 0)); - printk("%s: CE AFAR [%016lx]\n", pbm->name, afar); - printk("%s: CE Secondary errors [", pbm->name); - reported = 0; - if (afsr & PSYCHO_CEAFSR_SPIO) { - reported++; - printk("(PIO)"); - } - if (afsr & PSYCHO_CEAFSR_SDRD) { - reported++; - printk("(DMA Read)"); - } - if (afsr & PSYCHO_CEAFSR_SDWR) { - reported++; - printk("(DMA Write)"); - } - if (!reported) - printk("(none)"); - printk("]\n"); - - return IRQ_HANDLED; -} - -/* PCI Errors. They are signalled by the PCI bus module since they - * are associated with a specific bus segment. - */ -#define PSYCHO_PCI_AFSR_A 0x2010UL -#define PSYCHO_PCI_AFSR_B 0x4010UL -#define PSYCHO_PCI_AFAR_A 0x2018UL -#define PSYCHO_PCI_AFAR_B 0x4018UL - -/* XXX What about PowerFail/PowerManagement??? -DaveM */ -#define PSYCHO_ECC_CTRL 0x0020 -#define PSYCHO_ECCCTRL_EE 0x8000000000000000UL /* Enable ECC Checking */ -#define PSYCHO_ECCCTRL_UE 0x4000000000000000UL /* Enable UE Interrupts */ -#define PSYCHO_ECCCTRL_CE 0x2000000000000000UL /* Enable CE INterrupts */ -static void psycho_register_error_handlers(struct pci_pbm_info *pbm) -{ - struct of_device *op = of_find_device_by_node(pbm->op->node); - unsigned long base = pbm->controller_regs; - u64 tmp; - int err; - - if (!op) - return; - - /* Psycho interrupt property order is: - * 0: PCIERR INO for this PBM - * 1: UE ERR - * 2: CE ERR - * 3: POWER FAIL - * 4: SPARE HARDWARE - * 5: POWER MANAGEMENT - */ - - if (op->num_irqs < 6) - return; - - /* We really mean to ignore the return result here. Two - * PCI controller share the same interrupt numbers and - * drive the same front-end hardware. Whichever of the - * two get in here first will register the IRQ handler - * the second will just error out since we do not pass in - * IRQF_SHARED. - */ - err = request_irq(op->irqs[1], psycho_ue_intr, IRQF_SHARED, - "PSYCHO_UE", pbm); - err = request_irq(op->irqs[2], psycho_ce_intr, IRQF_SHARED, - "PSYCHO_CE", pbm); - - /* This one, however, ought not to fail. We can just warn - * about it since the system can still operate properly even - * if this fails. - */ - err = request_irq(op->irqs[0], psycho_pcierr_intr, IRQF_SHARED, - "PSYCHO_PCIERR", pbm); - if (err) - printk(KERN_WARNING "%s: Could not register PCIERR, " - "err=%d\n", pbm->name, err); - - /* Enable UE and CE interrupts for controller. */ - upa_writeq((PSYCHO_ECCCTRL_EE | - PSYCHO_ECCCTRL_UE | - PSYCHO_ECCCTRL_CE), base + PSYCHO_ECC_CTRL); - - /* Enable PCI Error interrupts and clear error - * bits for each PBM. - */ - tmp = upa_readq(base + PSYCHO_PCIA_CTRL); - tmp |= (PSYCHO_PCICTRL_SERR | - PSYCHO_PCICTRL_SBH_ERR | - PSYCHO_PCICTRL_EEN); - tmp &= ~(PSYCHO_PCICTRL_SBH_INT); - upa_writeq(tmp, base + PSYCHO_PCIA_CTRL); - - tmp = upa_readq(base + PSYCHO_PCIB_CTRL); - tmp |= (PSYCHO_PCICTRL_SERR | - PSYCHO_PCICTRL_SBH_ERR | - PSYCHO_PCICTRL_EEN); - tmp &= ~(PSYCHO_PCICTRL_SBH_INT); - upa_writeq(tmp, base + PSYCHO_PCIB_CTRL); -} - -/* PSYCHO boot time probing and initialization. */ -static void pbm_config_busmastering(struct pci_pbm_info *pbm) -{ - u8 *addr; - - /* Set cache-line size to 64 bytes, this is actually - * a nop but I do it for completeness. - */ - addr = psycho_pci_config_mkaddr(pbm, pbm->pci_first_busno, - 0, PCI_CACHE_LINE_SIZE); - pci_config_write8(addr, 64 / sizeof(u32)); - - /* Set PBM latency timer to 64 PCI clocks. */ - addr = psycho_pci_config_mkaddr(pbm, pbm->pci_first_busno, - 0, PCI_LATENCY_TIMER); - pci_config_write8(addr, 64); -} - -static void __init psycho_scan_bus(struct pci_pbm_info *pbm, - struct device *parent) -{ - pbm_config_busmastering(pbm); - pbm->is_66mhz_capable = 0; - pbm->pci_bus = pci_scan_one_pbm(pbm, parent); - - /* After the PCI bus scan is complete, we can register - * the error interrupt handlers. - */ - psycho_register_error_handlers(pbm); -} - -#define PSYCHO_IRQ_RETRY 0x1a00UL -#define PSYCHO_PCIA_DIAG 0x2020UL -#define PSYCHO_PCIB_DIAG 0x4020UL -#define PSYCHO_PCIDIAG_RESV 0xffffffffffffff80UL /* Reserved */ -#define PSYCHO_PCIDIAG_DRETRY 0x0000000000000040UL /* Disable retry limit */ -#define PSYCHO_PCIDIAG_DISYNC 0x0000000000000020UL /* Disable DMA wr / irq sync */ -#define PSYCHO_PCIDIAG_DDWSYNC 0x0000000000000010UL /* Disable DMA wr / PIO rd sync */ -#define PSYCHO_PCIDIAG_IDDPAR 0x0000000000000008UL /* Invert DMA data parity */ -#define PSYCHO_PCIDIAG_IPDPAR 0x0000000000000004UL /* Invert PIO data parity */ -#define PSYCHO_PCIDIAG_IPAPAR 0x0000000000000002UL /* Invert PIO address parity */ -#define PSYCHO_PCIDIAG_LPBACK 0x0000000000000001UL /* Enable loopback mode */ - -static void psycho_controller_hwinit(struct pci_pbm_info *pbm) -{ - u64 tmp; - - upa_writeq(5, pbm->controller_regs + PSYCHO_IRQ_RETRY); - - /* Enable arbiter for all PCI slots. */ - tmp = upa_readq(pbm->controller_regs + PSYCHO_PCIA_CTRL); - tmp |= PSYCHO_PCICTRL_AEN; - upa_writeq(tmp, pbm->controller_regs + PSYCHO_PCIA_CTRL); - - tmp = upa_readq(pbm->controller_regs + PSYCHO_PCIB_CTRL); - tmp |= PSYCHO_PCICTRL_AEN; - upa_writeq(tmp, pbm->controller_regs + PSYCHO_PCIB_CTRL); - - /* Disable DMA write / PIO read synchronization on - * both PCI bus segments. - * [ U2P Erratum 1243770, STP2223BGA data sheet ] - */ - tmp = upa_readq(pbm->controller_regs + PSYCHO_PCIA_DIAG); - tmp |= PSYCHO_PCIDIAG_DDWSYNC; - upa_writeq(tmp, pbm->controller_regs + PSYCHO_PCIA_DIAG); - - tmp = upa_readq(pbm->controller_regs + PSYCHO_PCIB_DIAG); - tmp |= PSYCHO_PCIDIAG_DDWSYNC; - upa_writeq(tmp, pbm->controller_regs + PSYCHO_PCIB_DIAG); -} - -static void psycho_pbm_strbuf_init(struct pci_pbm_info *pbm, - int is_pbm_a) -{ - unsigned long base = pbm->controller_regs; - u64 control; - - if (is_pbm_a) { - pbm->stc.strbuf_control = base + PSYCHO_STRBUF_CONTROL_A; - pbm->stc.strbuf_pflush = base + PSYCHO_STRBUF_FLUSH_A; - pbm->stc.strbuf_fsync = base + PSYCHO_STRBUF_FSYNC_A; - pbm->stc.strbuf_err_stat = base + PSYCHO_STC_ERR_A; - pbm->stc.strbuf_tag_diag = base + PSYCHO_STC_TAG_A; - pbm->stc.strbuf_line_diag= base + PSYCHO_STC_LINE_A; - } else { - pbm->stc.strbuf_control = base + PSYCHO_STRBUF_CONTROL_B; - pbm->stc.strbuf_pflush = base + PSYCHO_STRBUF_FLUSH_B; - pbm->stc.strbuf_fsync = base + PSYCHO_STRBUF_FSYNC_B; - pbm->stc.strbuf_err_stat = base + PSYCHO_STC_ERR_B; - pbm->stc.strbuf_tag_diag = base + PSYCHO_STC_TAG_B; - pbm->stc.strbuf_line_diag= base + PSYCHO_STC_LINE_B; - } - /* PSYCHO's streaming buffer lacks ctx flushing. */ - pbm->stc.strbuf_ctxflush = 0; - pbm->stc.strbuf_ctxmatch_base = 0; - - pbm->stc.strbuf_flushflag = (volatile unsigned long *) - ((((unsigned long)&pbm->stc.__flushflag_buf[0]) - + 63UL) - & ~63UL); - pbm->stc.strbuf_flushflag_pa = (unsigned long) - __pa(pbm->stc.strbuf_flushflag); - - /* Enable the streaming buffer. We have to be careful - * just in case OBP left it with LRU locking enabled. - * - * It is possible to control if PBM will be rerun on - * line misses. Currently I just retain whatever setting - * OBP left us with. All checks so far show it having - * a value of zero. - */ -#undef PSYCHO_STRBUF_RERUN_ENABLE -#undef PSYCHO_STRBUF_RERUN_DISABLE - control = upa_readq(pbm->stc.strbuf_control); - control |= PSYCHO_STRBUF_CTRL_ENAB; - control &= ~(PSYCHO_STRBUF_CTRL_LENAB | PSYCHO_STRBUF_CTRL_LPTR); -#ifdef PSYCHO_STRBUF_RERUN_ENABLE - control &= ~(PSYCHO_STRBUF_CTRL_RRDIS); -#else -#ifdef PSYCHO_STRBUF_RERUN_DISABLE - control |= PSYCHO_STRBUF_CTRL_RRDIS; -#endif -#endif - upa_writeq(control, pbm->stc.strbuf_control); - - pbm->stc.strbuf_enabled = 1; -} - -#define PSYCHO_IOSPACE_A 0x002000000UL -#define PSYCHO_IOSPACE_B 0x002010000UL -#define PSYCHO_IOSPACE_SIZE 0x00000ffffUL -#define PSYCHO_MEMSPACE_A 0x100000000UL -#define PSYCHO_MEMSPACE_B 0x180000000UL -#define PSYCHO_MEMSPACE_SIZE 0x07fffffffUL - -static void __init psycho_pbm_init(struct pci_pbm_info *pbm, - struct of_device *op, int is_pbm_a) -{ - psycho_pbm_init_common(pbm, op, "PSYCHO", PBM_CHIP_TYPE_PSYCHO); - psycho_pbm_strbuf_init(pbm, is_pbm_a); - psycho_scan_bus(pbm, &op->dev); -} - -static struct pci_pbm_info * __devinit psycho_find_sibling(u32 upa_portid) -{ - struct pci_pbm_info *pbm; - - for (pbm = pci_pbm_root; pbm; pbm = pbm->next) { - if (pbm->portid == upa_portid) - return pbm; - } - return NULL; -} - -#define PSYCHO_CONFIGSPACE 0x001000000UL - -static int __devinit psycho_probe(struct of_device *op, - const struct of_device_id *match) -{ - const struct linux_prom64_registers *pr_regs; - struct device_node *dp = op->node; - struct pci_pbm_info *pbm; - struct iommu *iommu; - int is_pbm_a, err; - u32 upa_portid; - - upa_portid = of_getintprop_default(dp, "upa-portid", 0xff); - - err = -ENOMEM; - pbm = kzalloc(sizeof(*pbm), GFP_KERNEL); - if (!pbm) { - printk(KERN_ERR PFX "Cannot allocate pci_pbm_info.\n"); - goto out_err; - } - - pbm->sibling = psycho_find_sibling(upa_portid); - if (pbm->sibling) { - iommu = pbm->sibling->iommu; - } else { - iommu = kzalloc(sizeof(struct iommu), GFP_KERNEL); - if (!iommu) { - printk(KERN_ERR PFX "Cannot allocate PBM iommu.\n"); - goto out_free_controller; - } - } - - pbm->iommu = iommu; - pbm->portid = upa_portid; - - pr_regs = of_get_property(dp, "reg", NULL); - err = -ENODEV; - if (!pr_regs) { - printk(KERN_ERR PFX "No reg property.\n"); - goto out_free_iommu; - } - - is_pbm_a = ((pr_regs[0].phys_addr & 0x6000) == 0x2000); - - pbm->controller_regs = pr_regs[2].phys_addr; - pbm->config_space = (pr_regs[2].phys_addr + PSYCHO_CONFIGSPACE); - - if (is_pbm_a) { - pbm->pci_afsr = pbm->controller_regs + PSYCHO_PCI_AFSR_A; - pbm->pci_afar = pbm->controller_regs + PSYCHO_PCI_AFAR_A; - pbm->pci_csr = pbm->controller_regs + PSYCHO_PCIA_CTRL; - } else { - pbm->pci_afsr = pbm->controller_regs + PSYCHO_PCI_AFSR_B; - pbm->pci_afar = pbm->controller_regs + PSYCHO_PCI_AFAR_B; - pbm->pci_csr = pbm->controller_regs + PSYCHO_PCIB_CTRL; - } - - psycho_controller_hwinit(pbm); - if (!pbm->sibling) { - err = psycho_iommu_init(pbm, 128, 0xc0000000, - 0xffffffff, PSYCHO_CONTROL); - if (err) - goto out_free_iommu; - - /* If necessary, hook us up for starfire IRQ translations. */ - if (this_is_starfire) - starfire_hookup(pbm->portid); - } - - psycho_pbm_init(pbm, op, is_pbm_a); - - pbm->next = pci_pbm_root; - pci_pbm_root = pbm; - - if (pbm->sibling) - pbm->sibling->sibling = pbm; - - dev_set_drvdata(&op->dev, pbm); - - return 0; - -out_free_iommu: - if (!pbm->sibling) - kfree(pbm->iommu); - -out_free_controller: - kfree(pbm); - -out_err: - return err; -} - -static struct of_device_id __initdata psycho_match[] = { - { - .name = "pci", - .compatible = "pci108e,8000", - }, - {}, -}; - -static struct of_platform_driver psycho_driver = { - .name = DRIVER_NAME, - .match_table = psycho_match, - .probe = psycho_probe, -}; - -static int __init psycho_init(void) -{ - return of_register_driver(&psycho_driver, &of_bus_type); -} - -subsys_initcall(psycho_init); diff --git a/arch/sparc64/kernel/pci_sabre.c b/arch/sparc64/kernel/pci_sabre.c deleted file mode 100644 index 713257b6963c..000000000000 --- a/arch/sparc64/kernel/pci_sabre.c +++ /dev/null @@ -1,609 +0,0 @@ -/* pci_sabre.c: Sabre specific PCI controller support. - * - * Copyright (C) 1997, 1998, 1999, 2007 David S. Miller (davem@davemloft.net) - * Copyright (C) 1998, 1999 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 1999 Jakub Jelinek (jakub@redhat.com) - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/of_device.h> - -#include <asm/apb.h> -#include <asm/iommu.h> -#include <asm/irq.h> -#include <asm/prom.h> -#include <asm/upa.h> - -#include "pci_impl.h" -#include "iommu_common.h" -#include "psycho_common.h" - -#define DRIVER_NAME "sabre" -#define PFX DRIVER_NAME ": " - -/* SABRE PCI controller register offsets and definitions. */ -#define SABRE_UE_AFSR 0x0030UL -#define SABRE_UEAFSR_PDRD 0x4000000000000000UL /* Primary PCI DMA Read */ -#define SABRE_UEAFSR_PDWR 0x2000000000000000UL /* Primary PCI DMA Write */ -#define SABRE_UEAFSR_SDRD 0x0800000000000000UL /* Secondary PCI DMA Read */ -#define SABRE_UEAFSR_SDWR 0x0400000000000000UL /* Secondary PCI DMA Write */ -#define SABRE_UEAFSR_SDTE 0x0200000000000000UL /* Secondary DMA Translation Error */ -#define SABRE_UEAFSR_PDTE 0x0100000000000000UL /* Primary DMA Translation Error */ -#define SABRE_UEAFSR_BMSK 0x0000ffff00000000UL /* Bytemask */ -#define SABRE_UEAFSR_OFF 0x00000000e0000000UL /* Offset (AFAR bits [5:3] */ -#define SABRE_UEAFSR_BLK 0x0000000000800000UL /* Was block operation */ -#define SABRE_UECE_AFAR 0x0038UL -#define SABRE_CE_AFSR 0x0040UL -#define SABRE_CEAFSR_PDRD 0x4000000000000000UL /* Primary PCI DMA Read */ -#define SABRE_CEAFSR_PDWR 0x2000000000000000UL /* Primary PCI DMA Write */ -#define SABRE_CEAFSR_SDRD 0x0800000000000000UL /* Secondary PCI DMA Read */ -#define SABRE_CEAFSR_SDWR 0x0400000000000000UL /* Secondary PCI DMA Write */ -#define SABRE_CEAFSR_ESYND 0x00ff000000000000UL /* ECC Syndrome */ -#define SABRE_CEAFSR_BMSK 0x0000ffff00000000UL /* Bytemask */ -#define SABRE_CEAFSR_OFF 0x00000000e0000000UL /* Offset */ -#define SABRE_CEAFSR_BLK 0x0000000000800000UL /* Was block operation */ -#define SABRE_UECE_AFAR_ALIAS 0x0048UL /* Aliases to 0x0038 */ -#define SABRE_IOMMU_CONTROL 0x0200UL -#define SABRE_IOMMUCTRL_ERRSTS 0x0000000006000000UL /* Error status bits */ -#define SABRE_IOMMUCTRL_ERR 0x0000000001000000UL /* Error present in IOTLB */ -#define SABRE_IOMMUCTRL_LCKEN 0x0000000000800000UL /* IOTLB lock enable */ -#define SABRE_IOMMUCTRL_LCKPTR 0x0000000000780000UL /* IOTLB lock pointer */ -#define SABRE_IOMMUCTRL_TSBSZ 0x0000000000070000UL /* TSB Size */ -#define SABRE_IOMMU_TSBSZ_1K 0x0000000000000000 -#define SABRE_IOMMU_TSBSZ_2K 0x0000000000010000 -#define SABRE_IOMMU_TSBSZ_4K 0x0000000000020000 -#define SABRE_IOMMU_TSBSZ_8K 0x0000000000030000 -#define SABRE_IOMMU_TSBSZ_16K 0x0000000000040000 -#define SABRE_IOMMU_TSBSZ_32K 0x0000000000050000 -#define SABRE_IOMMU_TSBSZ_64K 0x0000000000060000 -#define SABRE_IOMMU_TSBSZ_128K 0x0000000000070000 -#define SABRE_IOMMUCTRL_TBWSZ 0x0000000000000004UL /* TSB assumed page size */ -#define SABRE_IOMMUCTRL_DENAB 0x0000000000000002UL /* Diagnostic Mode Enable */ -#define SABRE_IOMMUCTRL_ENAB 0x0000000000000001UL /* IOMMU Enable */ -#define SABRE_IOMMU_TSBBASE 0x0208UL -#define SABRE_IOMMU_FLUSH 0x0210UL -#define SABRE_IMAP_A_SLOT0 0x0c00UL -#define SABRE_IMAP_B_SLOT0 0x0c20UL -#define SABRE_IMAP_SCSI 0x1000UL -#define SABRE_IMAP_ETH 0x1008UL -#define SABRE_IMAP_BPP 0x1010UL -#define SABRE_IMAP_AU_REC 0x1018UL -#define SABRE_IMAP_AU_PLAY 0x1020UL -#define SABRE_IMAP_PFAIL 0x1028UL -#define SABRE_IMAP_KMS 0x1030UL -#define SABRE_IMAP_FLPY 0x1038UL -#define SABRE_IMAP_SHW 0x1040UL -#define SABRE_IMAP_KBD 0x1048UL -#define SABRE_IMAP_MS 0x1050UL -#define SABRE_IMAP_SER 0x1058UL -#define SABRE_IMAP_UE 0x1070UL -#define SABRE_IMAP_CE 0x1078UL -#define SABRE_IMAP_PCIERR 0x1080UL -#define SABRE_IMAP_GFX 0x1098UL -#define SABRE_IMAP_EUPA 0x10a0UL -#define SABRE_ICLR_A_SLOT0 0x1400UL -#define SABRE_ICLR_B_SLOT0 0x1480UL -#define SABRE_ICLR_SCSI 0x1800UL -#define SABRE_ICLR_ETH 0x1808UL -#define SABRE_ICLR_BPP 0x1810UL -#define SABRE_ICLR_AU_REC 0x1818UL -#define SABRE_ICLR_AU_PLAY 0x1820UL -#define SABRE_ICLR_PFAIL 0x1828UL -#define SABRE_ICLR_KMS 0x1830UL -#define SABRE_ICLR_FLPY 0x1838UL -#define SABRE_ICLR_SHW 0x1840UL -#define SABRE_ICLR_KBD 0x1848UL -#define SABRE_ICLR_MS 0x1850UL -#define SABRE_ICLR_SER 0x1858UL -#define SABRE_ICLR_UE 0x1870UL -#define SABRE_ICLR_CE 0x1878UL -#define SABRE_ICLR_PCIERR 0x1880UL -#define SABRE_WRSYNC 0x1c20UL -#define SABRE_PCICTRL 0x2000UL -#define SABRE_PCICTRL_MRLEN 0x0000001000000000UL /* Use MemoryReadLine for block loads/stores */ -#define SABRE_PCICTRL_SERR 0x0000000400000000UL /* Set when SERR asserted on PCI bus */ -#define SABRE_PCICTRL_ARBPARK 0x0000000000200000UL /* Bus Parking 0=Ultra-IIi 1=prev-bus-owner */ -#define SABRE_PCICTRL_CPUPRIO 0x0000000000100000UL /* Ultra-IIi granted every other bus cycle */ -#define SABRE_PCICTRL_ARBPRIO 0x00000000000f0000UL /* Slot which is granted every other bus cycle */ -#define SABRE_PCICTRL_ERREN 0x0000000000000100UL /* PCI Error Interrupt Enable */ -#define SABRE_PCICTRL_RTRYWE 0x0000000000000080UL /* DMA Flow Control 0=wait-if-possible 1=retry */ -#define SABRE_PCICTRL_AEN 0x000000000000000fUL /* Slot PCI arbitration enables */ -#define SABRE_PIOAFSR 0x2010UL -#define SABRE_PIOAFSR_PMA 0x8000000000000000UL /* Primary Master Abort */ -#define SABRE_PIOAFSR_PTA 0x4000000000000000UL /* Primary Target Abort */ -#define SABRE_PIOAFSR_PRTRY 0x2000000000000000UL /* Primary Excessive Retries */ -#define SABRE_PIOAFSR_PPERR 0x1000000000000000UL /* Primary Parity Error */ -#define SABRE_PIOAFSR_SMA 0x0800000000000000UL /* Secondary Master Abort */ -#define SABRE_PIOAFSR_STA 0x0400000000000000UL /* Secondary Target Abort */ -#define SABRE_PIOAFSR_SRTRY 0x0200000000000000UL /* Secondary Excessive Retries */ -#define SABRE_PIOAFSR_SPERR 0x0100000000000000UL /* Secondary Parity Error */ -#define SABRE_PIOAFSR_BMSK 0x0000ffff00000000UL /* Byte Mask */ -#define SABRE_PIOAFSR_BLK 0x0000000080000000UL /* Was Block Operation */ -#define SABRE_PIOAFAR 0x2018UL -#define SABRE_PCIDIAG 0x2020UL -#define SABRE_PCIDIAG_DRTRY 0x0000000000000040UL /* Disable PIO Retry Limit */ -#define SABRE_PCIDIAG_IPAPAR 0x0000000000000008UL /* Invert PIO Address Parity */ -#define SABRE_PCIDIAG_IPDPAR 0x0000000000000004UL /* Invert PIO Data Parity */ -#define SABRE_PCIDIAG_IDDPAR 0x0000000000000002UL /* Invert DMA Data Parity */ -#define SABRE_PCIDIAG_ELPBK 0x0000000000000001UL /* Loopback Enable - not supported */ -#define SABRE_PCITASR 0x2028UL -#define SABRE_PCITASR_EF 0x0000000000000080UL /* Respond to 0xe0000000-0xffffffff */ -#define SABRE_PCITASR_CD 0x0000000000000040UL /* Respond to 0xc0000000-0xdfffffff */ -#define SABRE_PCITASR_AB 0x0000000000000020UL /* Respond to 0xa0000000-0xbfffffff */ -#define SABRE_PCITASR_89 0x0000000000000010UL /* Respond to 0x80000000-0x9fffffff */ -#define SABRE_PCITASR_67 0x0000000000000008UL /* Respond to 0x60000000-0x7fffffff */ -#define SABRE_PCITASR_45 0x0000000000000004UL /* Respond to 0x40000000-0x5fffffff */ -#define SABRE_PCITASR_23 0x0000000000000002UL /* Respond to 0x20000000-0x3fffffff */ -#define SABRE_PCITASR_01 0x0000000000000001UL /* Respond to 0x00000000-0x1fffffff */ -#define SABRE_PIOBUF_DIAG 0x5000UL -#define SABRE_DMABUF_DIAGLO 0x5100UL -#define SABRE_DMABUF_DIAGHI 0x51c0UL -#define SABRE_IMAP_GFX_ALIAS 0x6000UL /* Aliases to 0x1098 */ -#define SABRE_IMAP_EUPA_ALIAS 0x8000UL /* Aliases to 0x10a0 */ -#define SABRE_IOMMU_VADIAG 0xa400UL -#define SABRE_IOMMU_TCDIAG 0xa408UL -#define SABRE_IOMMU_TAG 0xa580UL -#define SABRE_IOMMUTAG_ERRSTS 0x0000000001800000UL /* Error status bits */ -#define SABRE_IOMMUTAG_ERR 0x0000000000400000UL /* Error present */ -#define SABRE_IOMMUTAG_WRITE 0x0000000000200000UL /* Page is writable */ -#define SABRE_IOMMUTAG_STREAM 0x0000000000100000UL /* Streamable bit - unused */ -#define SABRE_IOMMUTAG_SIZE 0x0000000000080000UL /* 0=8k 1=16k */ -#define SABRE_IOMMUTAG_VPN 0x000000000007ffffUL /* Virtual Page Number [31:13] */ -#define SABRE_IOMMU_DATA 0xa600UL -#define SABRE_IOMMUDATA_VALID 0x0000000040000000UL /* Valid */ -#define SABRE_IOMMUDATA_USED 0x0000000020000000UL /* Used (for LRU algorithm) */ -#define SABRE_IOMMUDATA_CACHE 0x0000000010000000UL /* Cacheable */ -#define SABRE_IOMMUDATA_PPN 0x00000000001fffffUL /* Physical Page Number [33:13] */ -#define SABRE_PCI_IRQSTATE 0xa800UL -#define SABRE_OBIO_IRQSTATE 0xa808UL -#define SABRE_FFBCFG 0xf000UL -#define SABRE_FFBCFG_SPRQS 0x000000000f000000 /* Slave P_RQST queue size */ -#define SABRE_FFBCFG_ONEREAD 0x0000000000004000 /* Slave supports one outstanding read */ -#define SABRE_MCCTRL0 0xf010UL -#define SABRE_MCCTRL0_RENAB 0x0000000080000000 /* Refresh Enable */ -#define SABRE_MCCTRL0_EENAB 0x0000000010000000 /* Enable all ECC functions */ -#define SABRE_MCCTRL0_11BIT 0x0000000000001000 /* Enable 11-bit column addressing */ -#define SABRE_MCCTRL0_DPP 0x0000000000000f00 /* DIMM Pair Present Bits */ -#define SABRE_MCCTRL0_RINTVL 0x00000000000000ff /* Refresh Interval */ -#define SABRE_MCCTRL1 0xf018UL -#define SABRE_MCCTRL1_AMDC 0x0000000038000000 /* Advance Memdata Clock */ -#define SABRE_MCCTRL1_ARDC 0x0000000007000000 /* Advance DRAM Read Data Clock */ -#define SABRE_MCCTRL1_CSR 0x0000000000e00000 /* CAS to RAS delay for CBR refresh */ -#define SABRE_MCCTRL1_CASRW 0x00000000001c0000 /* CAS length for read/write */ -#define SABRE_MCCTRL1_RCD 0x0000000000038000 /* RAS to CAS delay */ -#define SABRE_MCCTRL1_CP 0x0000000000007000 /* CAS Precharge */ -#define SABRE_MCCTRL1_RP 0x0000000000000e00 /* RAS Precharge */ -#define SABRE_MCCTRL1_RAS 0x00000000000001c0 /* Length of RAS for refresh */ -#define SABRE_MCCTRL1_CASRW2 0x0000000000000038 /* Must be same as CASRW */ -#define SABRE_MCCTRL1_RSC 0x0000000000000007 /* RAS after CAS hold time */ -#define SABRE_RESETCTRL 0xf020UL - -#define SABRE_CONFIGSPACE 0x001000000UL -#define SABRE_IOSPACE 0x002000000UL -#define SABRE_IOSPACE_SIZE 0x000ffffffUL -#define SABRE_MEMSPACE 0x100000000UL -#define SABRE_MEMSPACE_SIZE 0x07fffffffUL - -static int hummingbird_p; -static struct pci_bus *sabre_root_bus; - -static irqreturn_t sabre_ue_intr(int irq, void *dev_id) -{ - struct pci_pbm_info *pbm = dev_id; - unsigned long afsr_reg = pbm->controller_regs + SABRE_UE_AFSR; - unsigned long afar_reg = pbm->controller_regs + SABRE_UECE_AFAR; - unsigned long afsr, afar, error_bits; - int reported; - - /* Latch uncorrectable error status. */ - afar = upa_readq(afar_reg); - afsr = upa_readq(afsr_reg); - - /* Clear the primary/secondary error status bits. */ - error_bits = afsr & - (SABRE_UEAFSR_PDRD | SABRE_UEAFSR_PDWR | - SABRE_UEAFSR_SDRD | SABRE_UEAFSR_SDWR | - SABRE_UEAFSR_SDTE | SABRE_UEAFSR_PDTE); - if (!error_bits) - return IRQ_NONE; - upa_writeq(error_bits, afsr_reg); - - /* Log the error. */ - printk("%s: Uncorrectable Error, primary error type[%s%s]\n", - pbm->name, - ((error_bits & SABRE_UEAFSR_PDRD) ? - "DMA Read" : - ((error_bits & SABRE_UEAFSR_PDWR) ? - "DMA Write" : "???")), - ((error_bits & SABRE_UEAFSR_PDTE) ? - ":Translation Error" : "")); - printk("%s: bytemask[%04lx] dword_offset[%lx] was_block(%d)\n", - pbm->name, - (afsr & SABRE_UEAFSR_BMSK) >> 32UL, - (afsr & SABRE_UEAFSR_OFF) >> 29UL, - ((afsr & SABRE_UEAFSR_BLK) ? 1 : 0)); - printk("%s: UE AFAR [%016lx]\n", pbm->name, afar); - printk("%s: UE Secondary errors [", pbm->name); - reported = 0; - if (afsr & SABRE_UEAFSR_SDRD) { - reported++; - printk("(DMA Read)"); - } - if (afsr & SABRE_UEAFSR_SDWR) { - reported++; - printk("(DMA Write)"); - } - if (afsr & SABRE_UEAFSR_SDTE) { - reported++; - printk("(Translation Error)"); - } - if (!reported) - printk("(none)"); - printk("]\n"); - - /* Interrogate IOMMU for error status. */ - psycho_check_iommu_error(pbm, afsr, afar, UE_ERR); - - return IRQ_HANDLED; -} - -static irqreturn_t sabre_ce_intr(int irq, void *dev_id) -{ - struct pci_pbm_info *pbm = dev_id; - unsigned long afsr_reg = pbm->controller_regs + SABRE_CE_AFSR; - unsigned long afar_reg = pbm->controller_regs + SABRE_UECE_AFAR; - unsigned long afsr, afar, error_bits; - int reported; - - /* Latch error status. */ - afar = upa_readq(afar_reg); - afsr = upa_readq(afsr_reg); - - /* Clear primary/secondary error status bits. */ - error_bits = afsr & - (SABRE_CEAFSR_PDRD | SABRE_CEAFSR_PDWR | - SABRE_CEAFSR_SDRD | SABRE_CEAFSR_SDWR); - if (!error_bits) - return IRQ_NONE; - upa_writeq(error_bits, afsr_reg); - - /* Log the error. */ - printk("%s: Correctable Error, primary error type[%s]\n", - pbm->name, - ((error_bits & SABRE_CEAFSR_PDRD) ? - "DMA Read" : - ((error_bits & SABRE_CEAFSR_PDWR) ? - "DMA Write" : "???"))); - - /* XXX Use syndrome and afar to print out module string just like - * XXX UDB CE trap handler does... -DaveM - */ - printk("%s: syndrome[%02lx] bytemask[%04lx] dword_offset[%lx] " - "was_block(%d)\n", - pbm->name, - (afsr & SABRE_CEAFSR_ESYND) >> 48UL, - (afsr & SABRE_CEAFSR_BMSK) >> 32UL, - (afsr & SABRE_CEAFSR_OFF) >> 29UL, - ((afsr & SABRE_CEAFSR_BLK) ? 1 : 0)); - printk("%s: CE AFAR [%016lx]\n", pbm->name, afar); - printk("%s: CE Secondary errors [", pbm->name); - reported = 0; - if (afsr & SABRE_CEAFSR_SDRD) { - reported++; - printk("(DMA Read)"); - } - if (afsr & SABRE_CEAFSR_SDWR) { - reported++; - printk("(DMA Write)"); - } - if (!reported) - printk("(none)"); - printk("]\n"); - - return IRQ_HANDLED; -} - -static void sabre_register_error_handlers(struct pci_pbm_info *pbm) -{ - struct device_node *dp = pbm->op->node; - struct of_device *op; - unsigned long base = pbm->controller_regs; - u64 tmp; - int err; - - if (pbm->chip_type == PBM_CHIP_TYPE_SABRE) - dp = dp->parent; - - op = of_find_device_by_node(dp); - if (!op) - return; - - /* Sabre/Hummingbird IRQ property layout is: - * 0: PCI ERR - * 1: UE ERR - * 2: CE ERR - * 3: POWER FAIL - */ - if (op->num_irqs < 4) - return; - - /* We clear the error bits in the appropriate AFSR before - * registering the handler so that we don't get spurious - * interrupts. - */ - upa_writeq((SABRE_UEAFSR_PDRD | SABRE_UEAFSR_PDWR | - SABRE_UEAFSR_SDRD | SABRE_UEAFSR_SDWR | - SABRE_UEAFSR_SDTE | SABRE_UEAFSR_PDTE), - base + SABRE_UE_AFSR); - - err = request_irq(op->irqs[1], sabre_ue_intr, 0, "SABRE_UE", pbm); - if (err) - printk(KERN_WARNING "%s: Couldn't register UE, err=%d.\n", - pbm->name, err); - - upa_writeq((SABRE_CEAFSR_PDRD | SABRE_CEAFSR_PDWR | - SABRE_CEAFSR_SDRD | SABRE_CEAFSR_SDWR), - base + SABRE_CE_AFSR); - - - err = request_irq(op->irqs[2], sabre_ce_intr, 0, "SABRE_CE", pbm); - if (err) - printk(KERN_WARNING "%s: Couldn't register CE, err=%d.\n", - pbm->name, err); - err = request_irq(op->irqs[0], psycho_pcierr_intr, 0, - "SABRE_PCIERR", pbm); - if (err) - printk(KERN_WARNING "%s: Couldn't register PCIERR, err=%d.\n", - pbm->name, err); - - tmp = upa_readq(base + SABRE_PCICTRL); - tmp |= SABRE_PCICTRL_ERREN; - upa_writeq(tmp, base + SABRE_PCICTRL); -} - -static void apb_init(struct pci_bus *sabre_bus) -{ - struct pci_dev *pdev; - - list_for_each_entry(pdev, &sabre_bus->devices, bus_list) { - if (pdev->vendor == PCI_VENDOR_ID_SUN && - pdev->device == PCI_DEVICE_ID_SUN_SIMBA) { - u16 word16; - - pci_read_config_word(pdev, PCI_COMMAND, &word16); - word16 |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY | - PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | - PCI_COMMAND_IO; - pci_write_config_word(pdev, PCI_COMMAND, word16); - - /* Status register bits are "write 1 to clear". */ - pci_write_config_word(pdev, PCI_STATUS, 0xffff); - pci_write_config_word(pdev, PCI_SEC_STATUS, 0xffff); - - /* Use a primary/seconday latency timer value - * of 64. - */ - pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64); - pci_write_config_byte(pdev, PCI_SEC_LATENCY_TIMER, 64); - - /* Enable reporting/forwarding of master aborts, - * parity, and SERR. - */ - pci_write_config_byte(pdev, PCI_BRIDGE_CONTROL, - (PCI_BRIDGE_CTL_PARITY | - PCI_BRIDGE_CTL_SERR | - PCI_BRIDGE_CTL_MASTER_ABORT)); - } - } -} - -static void __init sabre_scan_bus(struct pci_pbm_info *pbm, - struct device *parent) -{ - static int once; - - /* The APB bridge speaks to the Sabre host PCI bridge - * at 66Mhz, but the front side of APB runs at 33Mhz - * for both segments. - * - * Hummingbird systems do not use APB, so they run - * at 66MHZ. - */ - if (hummingbird_p) - pbm->is_66mhz_capable = 1; - else - pbm->is_66mhz_capable = 0; - - /* This driver has not been verified to handle - * multiple SABREs yet, so trap this. - * - * Also note that the SABRE host bridge is hardwired - * to live at bus 0. - */ - if (once != 0) { - printk(KERN_ERR PFX "Multiple controllers unsupported.\n"); - return; - } - once++; - - pbm->pci_bus = pci_scan_one_pbm(pbm, parent); - if (!pbm->pci_bus) - return; - - sabre_root_bus = pbm->pci_bus; - - apb_init(pbm->pci_bus); - - sabre_register_error_handlers(pbm); -} - -static void __init sabre_pbm_init(struct pci_pbm_info *pbm, - struct of_device *op) -{ - psycho_pbm_init_common(pbm, op, "SABRE", PBM_CHIP_TYPE_SABRE); - pbm->pci_afsr = pbm->controller_regs + SABRE_PIOAFSR; - pbm->pci_afar = pbm->controller_regs + SABRE_PIOAFAR; - pbm->pci_csr = pbm->controller_regs + SABRE_PCICTRL; - sabre_scan_bus(pbm, &op->dev); -} - -static int __devinit sabre_probe(struct of_device *op, - const struct of_device_id *match) -{ - const struct linux_prom64_registers *pr_regs; - struct device_node *dp = op->node; - struct pci_pbm_info *pbm; - u32 upa_portid, dma_mask; - struct iommu *iommu; - int tsbsize, err; - const u32 *vdma; - u64 clear_irq; - - hummingbird_p = (match->data != NULL); - if (!hummingbird_p) { - struct device_node *cpu_dp; - - /* Of course, Sun has to encode things a thousand - * different ways, inconsistently. - */ - for_each_node_by_type(cpu_dp, "cpu") { - if (!strcmp(cpu_dp->name, "SUNW,UltraSPARC-IIe")) - hummingbird_p = 1; - } - } - - err = -ENOMEM; - pbm = kzalloc(sizeof(*pbm), GFP_KERNEL); - if (!pbm) { - printk(KERN_ERR PFX "Cannot allocate pci_pbm_info.\n"); - goto out_err; - } - - iommu = kzalloc(sizeof(*iommu), GFP_KERNEL); - if (!iommu) { - printk(KERN_ERR PFX "Cannot allocate PBM iommu.\n"); - goto out_free_controller; - } - - pbm->iommu = iommu; - - upa_portid = of_getintprop_default(dp, "upa-portid", 0xff); - - pbm->portid = upa_portid; - - /* - * Map in SABRE register set and report the presence of this SABRE. - */ - - pr_regs = of_get_property(dp, "reg", NULL); - err = -ENODEV; - if (!pr_regs) { - printk(KERN_ERR PFX "No reg property\n"); - goto out_free_iommu; - } - - /* - * First REG in property is base of entire SABRE register space. - */ - pbm->controller_regs = pr_regs[0].phys_addr; - - /* Clear interrupts */ - - /* PCI first */ - for (clear_irq = SABRE_ICLR_A_SLOT0; clear_irq < SABRE_ICLR_B_SLOT0 + 0x80; clear_irq += 8) - upa_writeq(0x0UL, pbm->controller_regs + clear_irq); - - /* Then OBIO */ - for (clear_irq = SABRE_ICLR_SCSI; clear_irq < SABRE_ICLR_SCSI + 0x80; clear_irq += 8) - upa_writeq(0x0UL, pbm->controller_regs + clear_irq); - - /* Error interrupts are enabled later after the bus scan. */ - upa_writeq((SABRE_PCICTRL_MRLEN | SABRE_PCICTRL_SERR | - SABRE_PCICTRL_ARBPARK | SABRE_PCICTRL_AEN), - pbm->controller_regs + SABRE_PCICTRL); - - /* Now map in PCI config space for entire SABRE. */ - pbm->config_space = pbm->controller_regs + SABRE_CONFIGSPACE; - - vdma = of_get_property(dp, "virtual-dma", NULL); - if (!vdma) { - printk(KERN_ERR PFX "No virtual-dma property\n"); - goto out_free_iommu; - } - - dma_mask = vdma[0]; - switch(vdma[1]) { - case 0x20000000: - dma_mask |= 0x1fffffff; - tsbsize = 64; - break; - case 0x40000000: - dma_mask |= 0x3fffffff; - tsbsize = 128; - break; - - case 0x80000000: - dma_mask |= 0x7fffffff; - tsbsize = 128; - break; - default: - printk(KERN_ERR PFX "Strange virtual-dma size.\n"); - goto out_free_iommu; - } - - err = psycho_iommu_init(pbm, tsbsize, vdma[0], dma_mask, SABRE_WRSYNC); - if (err) - goto out_free_iommu; - - /* - * Look for APB underneath. - */ - sabre_pbm_init(pbm, op); - - pbm->next = pci_pbm_root; - pci_pbm_root = pbm; - - dev_set_drvdata(&op->dev, pbm); - - return 0; - -out_free_iommu: - kfree(pbm->iommu); - -out_free_controller: - kfree(pbm); - -out_err: - return err; -} - -static struct of_device_id __initdata sabre_match[] = { - { - .name = "pci", - .compatible = "pci108e,a001", - .data = (void *) 1, - }, - { - .name = "pci", - .compatible = "pci108e,a000", - }, - {}, -}; - -static struct of_platform_driver sabre_driver = { - .name = DRIVER_NAME, - .match_table = sabre_match, - .probe = sabre_probe, -}; - -static int __init sabre_init(void) -{ - return of_register_driver(&sabre_driver, &of_bus_type); -} - -subsys_initcall(sabre_init); diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c deleted file mode 100644 index 45d9dba1ba11..000000000000 --- a/arch/sparc64/kernel/pci_schizo.c +++ /dev/null @@ -1,1504 +0,0 @@ -/* pci_schizo.c: SCHIZO/TOMATILLO specific PCI controller support. - * - * Copyright (C) 2001, 2002, 2003, 2007, 2008 David S. Miller (davem@davemloft.net) - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/of_device.h> - -#include <asm/iommu.h> -#include <asm/irq.h> -#include <asm/pstate.h> -#include <asm/prom.h> -#include <asm/upa.h> - -#include "pci_impl.h" -#include "iommu_common.h" - -#define DRIVER_NAME "schizo" -#define PFX DRIVER_NAME ": " - -/* This is a convention that at least Excalibur and Merlin - * follow. I suppose the SCHIZO used in Starcat and friends - * will do similar. - * - * The only way I could see this changing is if the newlink - * block requires more space in Schizo's address space than - * they predicted, thus requiring an address space reorg when - * the newer Schizo is taped out. - */ - -/* Streaming buffer control register. */ -#define SCHIZO_STRBUF_CTRL_LPTR 0x00000000000000f0UL /* LRU Lock Pointer */ -#define SCHIZO_STRBUF_CTRL_LENAB 0x0000000000000008UL /* LRU Lock Enable */ -#define SCHIZO_STRBUF_CTRL_RRDIS 0x0000000000000004UL /* Rerun Disable */ -#define SCHIZO_STRBUF_CTRL_DENAB 0x0000000000000002UL /* Diagnostic Mode Enable */ -#define SCHIZO_STRBUF_CTRL_ENAB 0x0000000000000001UL /* Streaming Buffer Enable */ - -/* IOMMU control register. */ -#define SCHIZO_IOMMU_CTRL_RESV 0xfffffffff9000000UL /* Reserved */ -#define SCHIZO_IOMMU_CTRL_XLTESTAT 0x0000000006000000UL /* Translation Error Status */ -#define SCHIZO_IOMMU_CTRL_XLTEERR 0x0000000001000000UL /* Translation Error encountered */ -#define SCHIZO_IOMMU_CTRL_LCKEN 0x0000000000800000UL /* Enable translation locking */ -#define SCHIZO_IOMMU_CTRL_LCKPTR 0x0000000000780000UL /* Translation lock pointer */ -#define SCHIZO_IOMMU_CTRL_TSBSZ 0x0000000000070000UL /* TSB Size */ -#define SCHIZO_IOMMU_TSBSZ_1K 0x0000000000000000UL /* TSB Table 1024 8-byte entries */ -#define SCHIZO_IOMMU_TSBSZ_2K 0x0000000000010000UL /* TSB Table 2048 8-byte entries */ -#define SCHIZO_IOMMU_TSBSZ_4K 0x0000000000020000UL /* TSB Table 4096 8-byte entries */ -#define SCHIZO_IOMMU_TSBSZ_8K 0x0000000000030000UL /* TSB Table 8192 8-byte entries */ -#define SCHIZO_IOMMU_TSBSZ_16K 0x0000000000040000UL /* TSB Table 16k 8-byte entries */ -#define SCHIZO_IOMMU_TSBSZ_32K 0x0000000000050000UL /* TSB Table 32k 8-byte entries */ -#define SCHIZO_IOMMU_TSBSZ_64K 0x0000000000060000UL /* TSB Table 64k 8-byte entries */ -#define SCHIZO_IOMMU_TSBSZ_128K 0x0000000000070000UL /* TSB Table 128k 8-byte entries */ -#define SCHIZO_IOMMU_CTRL_RESV2 0x000000000000fff8UL /* Reserved */ -#define SCHIZO_IOMMU_CTRL_TBWSZ 0x0000000000000004UL /* Assumed page size, 0=8k 1=64k */ -#define SCHIZO_IOMMU_CTRL_DENAB 0x0000000000000002UL /* Diagnostic mode enable */ -#define SCHIZO_IOMMU_CTRL_ENAB 0x0000000000000001UL /* IOMMU Enable */ - -/* Schizo config space address format is nearly identical to - * that of PSYCHO: - * - * 32 24 23 16 15 11 10 8 7 2 1 0 - * --------------------------------------------------------- - * |0 0 0 0 0 0 0 0 0| bus | device | function | reg | 0 0 | - * --------------------------------------------------------- - */ -#define SCHIZO_CONFIG_BASE(PBM) ((PBM)->config_space) -#define SCHIZO_CONFIG_ENCODE(BUS, DEVFN, REG) \ - (((unsigned long)(BUS) << 16) | \ - ((unsigned long)(DEVFN) << 8) | \ - ((unsigned long)(REG))) - -static void *schizo_pci_config_mkaddr(struct pci_pbm_info *pbm, - unsigned char bus, - unsigned int devfn, - int where) -{ - if (!pbm) - return NULL; - bus -= pbm->pci_first_busno; - return (void *) - (SCHIZO_CONFIG_BASE(pbm) | - SCHIZO_CONFIG_ENCODE(bus, devfn, where)); -} - -/* SCHIZO error handling support. */ -enum schizo_error_type { - UE_ERR, CE_ERR, PCI_ERR, SAFARI_ERR -}; - -static DEFINE_SPINLOCK(stc_buf_lock); -static unsigned long stc_error_buf[128]; -static unsigned long stc_tag_buf[16]; -static unsigned long stc_line_buf[16]; - -#define SCHIZO_UE_INO 0x30 /* Uncorrectable ECC error */ -#define SCHIZO_CE_INO 0x31 /* Correctable ECC error */ -#define SCHIZO_PCIERR_A_INO 0x32 /* PBM A PCI bus error */ -#define SCHIZO_PCIERR_B_INO 0x33 /* PBM B PCI bus error */ -#define SCHIZO_SERR_INO 0x34 /* Safari interface error */ - -#define SCHIZO_STC_ERR 0xb800UL /* --> 0xba00 */ -#define SCHIZO_STC_TAG 0xba00UL /* --> 0xba80 */ -#define SCHIZO_STC_LINE 0xbb00UL /* --> 0xbb80 */ - -#define SCHIZO_STCERR_WRITE 0x2UL -#define SCHIZO_STCERR_READ 0x1UL - -#define SCHIZO_STCTAG_PPN 0x3fffffff00000000UL -#define SCHIZO_STCTAG_VPN 0x00000000ffffe000UL -#define SCHIZO_STCTAG_VALID 0x8000000000000000UL -#define SCHIZO_STCTAG_READ 0x4000000000000000UL - -#define SCHIZO_STCLINE_LINDX 0x0000000007800000UL -#define SCHIZO_STCLINE_SPTR 0x000000000007e000UL -#define SCHIZO_STCLINE_LADDR 0x0000000000001fc0UL -#define SCHIZO_STCLINE_EPTR 0x000000000000003fUL -#define SCHIZO_STCLINE_VALID 0x0000000000600000UL -#define SCHIZO_STCLINE_FOFN 0x0000000000180000UL - -static void __schizo_check_stc_error_pbm(struct pci_pbm_info *pbm, - enum schizo_error_type type) -{ - struct strbuf *strbuf = &pbm->stc; - unsigned long regbase = pbm->pbm_regs; - unsigned long err_base, tag_base, line_base; - u64 control; - int i; - - err_base = regbase + SCHIZO_STC_ERR; - tag_base = regbase + SCHIZO_STC_TAG; - line_base = regbase + SCHIZO_STC_LINE; - - spin_lock(&stc_buf_lock); - - /* This is __REALLY__ dangerous. When we put the - * streaming buffer into diagnostic mode to probe - * it's tags and error status, we _must_ clear all - * of the line tag valid bits before re-enabling - * the streaming buffer. If any dirty data lives - * in the STC when we do this, we will end up - * invalidating it before it has a chance to reach - * main memory. - */ - control = upa_readq(strbuf->strbuf_control); - upa_writeq((control | SCHIZO_STRBUF_CTRL_DENAB), - strbuf->strbuf_control); - for (i = 0; i < 128; i++) { - unsigned long val; - - val = upa_readq(err_base + (i * 8UL)); - upa_writeq(0UL, err_base + (i * 8UL)); - stc_error_buf[i] = val; - } - for (i = 0; i < 16; i++) { - stc_tag_buf[i] = upa_readq(tag_base + (i * 8UL)); - stc_line_buf[i] = upa_readq(line_base + (i * 8UL)); - upa_writeq(0UL, tag_base + (i * 8UL)); - upa_writeq(0UL, line_base + (i * 8UL)); - } - - /* OK, state is logged, exit diagnostic mode. */ - upa_writeq(control, strbuf->strbuf_control); - - for (i = 0; i < 16; i++) { - int j, saw_error, first, last; - - saw_error = 0; - first = i * 8; - last = first + 8; - for (j = first; j < last; j++) { - unsigned long errval = stc_error_buf[j]; - if (errval != 0) { - saw_error++; - printk("%s: STC_ERR(%d)[wr(%d)rd(%d)]\n", - pbm->name, - j, - (errval & SCHIZO_STCERR_WRITE) ? 1 : 0, - (errval & SCHIZO_STCERR_READ) ? 1 : 0); - } - } - if (saw_error != 0) { - unsigned long tagval = stc_tag_buf[i]; - unsigned long lineval = stc_line_buf[i]; - printk("%s: STC_TAG(%d)[PA(%016lx)VA(%08lx)V(%d)R(%d)]\n", - pbm->name, - i, - ((tagval & SCHIZO_STCTAG_PPN) >> 19UL), - (tagval & SCHIZO_STCTAG_VPN), - ((tagval & SCHIZO_STCTAG_VALID) ? 1 : 0), - ((tagval & SCHIZO_STCTAG_READ) ? 1 : 0)); - - /* XXX Should spit out per-bank error information... -DaveM */ - printk("%s: STC_LINE(%d)[LIDX(%lx)SP(%lx)LADDR(%lx)EP(%lx)" - "V(%d)FOFN(%d)]\n", - pbm->name, - i, - ((lineval & SCHIZO_STCLINE_LINDX) >> 23UL), - ((lineval & SCHIZO_STCLINE_SPTR) >> 13UL), - ((lineval & SCHIZO_STCLINE_LADDR) >> 6UL), - ((lineval & SCHIZO_STCLINE_EPTR) >> 0UL), - ((lineval & SCHIZO_STCLINE_VALID) ? 1 : 0), - ((lineval & SCHIZO_STCLINE_FOFN) ? 1 : 0)); - } - } - - spin_unlock(&stc_buf_lock); -} - -/* IOMMU is per-PBM in Schizo, so interrogate both for anonymous - * controller level errors. - */ - -#define SCHIZO_IOMMU_TAG 0xa580UL -#define SCHIZO_IOMMU_DATA 0xa600UL - -#define SCHIZO_IOMMU_TAG_CTXT 0x0000001ffe000000UL -#define SCHIZO_IOMMU_TAG_ERRSTS 0x0000000001800000UL -#define SCHIZO_IOMMU_TAG_ERR 0x0000000000400000UL -#define SCHIZO_IOMMU_TAG_WRITE 0x0000000000200000UL -#define SCHIZO_IOMMU_TAG_STREAM 0x0000000000100000UL -#define SCHIZO_IOMMU_TAG_SIZE 0x0000000000080000UL -#define SCHIZO_IOMMU_TAG_VPAGE 0x000000000007ffffUL - -#define SCHIZO_IOMMU_DATA_VALID 0x0000000100000000UL -#define SCHIZO_IOMMU_DATA_CACHE 0x0000000040000000UL -#define SCHIZO_IOMMU_DATA_PPAGE 0x000000003fffffffUL - -static void schizo_check_iommu_error_pbm(struct pci_pbm_info *pbm, - enum schizo_error_type type) -{ - struct iommu *iommu = pbm->iommu; - unsigned long iommu_tag[16]; - unsigned long iommu_data[16]; - unsigned long flags; - u64 control; - int i; - - spin_lock_irqsave(&iommu->lock, flags); - control = upa_readq(iommu->iommu_control); - if (control & SCHIZO_IOMMU_CTRL_XLTEERR) { - unsigned long base; - char *type_string; - - /* Clear the error encountered bit. */ - control &= ~SCHIZO_IOMMU_CTRL_XLTEERR; - upa_writeq(control, iommu->iommu_control); - - switch((control & SCHIZO_IOMMU_CTRL_XLTESTAT) >> 25UL) { - case 0: - type_string = "Protection Error"; - break; - case 1: - type_string = "Invalid Error"; - break; - case 2: - type_string = "TimeOut Error"; - break; - case 3: - default: - type_string = "ECC Error"; - break; - }; - printk("%s: IOMMU Error, type[%s]\n", - pbm->name, type_string); - - /* Put the IOMMU into diagnostic mode and probe - * it's TLB for entries with error status. - * - * It is very possible for another DVMA to occur - * while we do this probe, and corrupt the system - * further. But we are so screwed at this point - * that we are likely to crash hard anyways, so - * get as much diagnostic information to the - * console as we can. - */ - upa_writeq(control | SCHIZO_IOMMU_CTRL_DENAB, - iommu->iommu_control); - - base = pbm->pbm_regs; - - for (i = 0; i < 16; i++) { - iommu_tag[i] = - upa_readq(base + SCHIZO_IOMMU_TAG + (i * 8UL)); - iommu_data[i] = - upa_readq(base + SCHIZO_IOMMU_DATA + (i * 8UL)); - - /* Now clear out the entry. */ - upa_writeq(0, base + SCHIZO_IOMMU_TAG + (i * 8UL)); - upa_writeq(0, base + SCHIZO_IOMMU_DATA + (i * 8UL)); - } - - /* Leave diagnostic mode. */ - upa_writeq(control, iommu->iommu_control); - - for (i = 0; i < 16; i++) { - unsigned long tag, data; - - tag = iommu_tag[i]; - if (!(tag & SCHIZO_IOMMU_TAG_ERR)) - continue; - - data = iommu_data[i]; - switch((tag & SCHIZO_IOMMU_TAG_ERRSTS) >> 23UL) { - case 0: - type_string = "Protection Error"; - break; - case 1: - type_string = "Invalid Error"; - break; - case 2: - type_string = "TimeOut Error"; - break; - case 3: - default: - type_string = "ECC Error"; - break; - }; - printk("%s: IOMMU TAG(%d)[error(%s) ctx(%x) wr(%d) str(%d) " - "sz(%dK) vpg(%08lx)]\n", - pbm->name, i, type_string, - (int)((tag & SCHIZO_IOMMU_TAG_CTXT) >> 25UL), - ((tag & SCHIZO_IOMMU_TAG_WRITE) ? 1 : 0), - ((tag & SCHIZO_IOMMU_TAG_STREAM) ? 1 : 0), - ((tag & SCHIZO_IOMMU_TAG_SIZE) ? 64 : 8), - (tag & SCHIZO_IOMMU_TAG_VPAGE) << IOMMU_PAGE_SHIFT); - printk("%s: IOMMU DATA(%d)[valid(%d) cache(%d) ppg(%016lx)]\n", - pbm->name, i, - ((data & SCHIZO_IOMMU_DATA_VALID) ? 1 : 0), - ((data & SCHIZO_IOMMU_DATA_CACHE) ? 1 : 0), - (data & SCHIZO_IOMMU_DATA_PPAGE) << IOMMU_PAGE_SHIFT); - } - } - if (pbm->stc.strbuf_enabled) - __schizo_check_stc_error_pbm(pbm, type); - spin_unlock_irqrestore(&iommu->lock, flags); -} - -static void schizo_check_iommu_error(struct pci_pbm_info *pbm, - enum schizo_error_type type) -{ - schizo_check_iommu_error_pbm(pbm, type); - if (pbm->sibling) - schizo_check_iommu_error_pbm(pbm->sibling, type); -} - -/* Uncorrectable ECC error status gathering. */ -#define SCHIZO_UE_AFSR 0x10030UL -#define SCHIZO_UE_AFAR 0x10038UL - -#define SCHIZO_UEAFSR_PPIO 0x8000000000000000UL /* Safari */ -#define SCHIZO_UEAFSR_PDRD 0x4000000000000000UL /* Safari/Tomatillo */ -#define SCHIZO_UEAFSR_PDWR 0x2000000000000000UL /* Safari */ -#define SCHIZO_UEAFSR_SPIO 0x1000000000000000UL /* Safari */ -#define SCHIZO_UEAFSR_SDMA 0x0800000000000000UL /* Safari/Tomatillo */ -#define SCHIZO_UEAFSR_ERRPNDG 0x0300000000000000UL /* Safari */ -#define SCHIZO_UEAFSR_BMSK 0x000003ff00000000UL /* Safari */ -#define SCHIZO_UEAFSR_QOFF 0x00000000c0000000UL /* Safari/Tomatillo */ -#define SCHIZO_UEAFSR_AID 0x000000001f000000UL /* Safari/Tomatillo */ -#define SCHIZO_UEAFSR_PARTIAL 0x0000000000800000UL /* Safari */ -#define SCHIZO_UEAFSR_OWNEDIN 0x0000000000400000UL /* Safari */ -#define SCHIZO_UEAFSR_MTAGSYND 0x00000000000f0000UL /* Safari */ -#define SCHIZO_UEAFSR_MTAG 0x000000000000e000UL /* Safari */ -#define SCHIZO_UEAFSR_ECCSYND 0x00000000000001ffUL /* Safari */ - -static irqreturn_t schizo_ue_intr(int irq, void *dev_id) -{ - struct pci_pbm_info *pbm = dev_id; - unsigned long afsr_reg = pbm->controller_regs + SCHIZO_UE_AFSR; - unsigned long afar_reg = pbm->controller_regs + SCHIZO_UE_AFAR; - unsigned long afsr, afar, error_bits; - int reported, limit; - - /* Latch uncorrectable error status. */ - afar = upa_readq(afar_reg); - - /* If either of the error pending bits are set in the - * AFSR, the error status is being actively updated by - * the hardware and we must re-read to get a clean value. - */ - limit = 1000; - do { - afsr = upa_readq(afsr_reg); - } while ((afsr & SCHIZO_UEAFSR_ERRPNDG) != 0 && --limit); - - /* Clear the primary/secondary error status bits. */ - error_bits = afsr & - (SCHIZO_UEAFSR_PPIO | SCHIZO_UEAFSR_PDRD | SCHIZO_UEAFSR_PDWR | - SCHIZO_UEAFSR_SPIO | SCHIZO_UEAFSR_SDMA); - if (!error_bits) - return IRQ_NONE; - upa_writeq(error_bits, afsr_reg); - - /* Log the error. */ - printk("%s: Uncorrectable Error, primary error type[%s]\n", - pbm->name, - (((error_bits & SCHIZO_UEAFSR_PPIO) ? - "PIO" : - ((error_bits & SCHIZO_UEAFSR_PDRD) ? - "DMA Read" : - ((error_bits & SCHIZO_UEAFSR_PDWR) ? - "DMA Write" : "???"))))); - printk("%s: bytemask[%04lx] qword_offset[%lx] SAFARI_AID[%02lx]\n", - pbm->name, - (afsr & SCHIZO_UEAFSR_BMSK) >> 32UL, - (afsr & SCHIZO_UEAFSR_QOFF) >> 30UL, - (afsr & SCHIZO_UEAFSR_AID) >> 24UL); - printk("%s: partial[%d] owned_in[%d] mtag[%lx] mtag_synd[%lx] ecc_sync[%lx]\n", - pbm->name, - (afsr & SCHIZO_UEAFSR_PARTIAL) ? 1 : 0, - (afsr & SCHIZO_UEAFSR_OWNEDIN) ? 1 : 0, - (afsr & SCHIZO_UEAFSR_MTAG) >> 13UL, - (afsr & SCHIZO_UEAFSR_MTAGSYND) >> 16UL, - (afsr & SCHIZO_UEAFSR_ECCSYND) >> 0UL); - printk("%s: UE AFAR [%016lx]\n", pbm->name, afar); - printk("%s: UE Secondary errors [", pbm->name); - reported = 0; - if (afsr & SCHIZO_UEAFSR_SPIO) { - reported++; - printk("(PIO)"); - } - if (afsr & SCHIZO_UEAFSR_SDMA) { - reported++; - printk("(DMA)"); - } - if (!reported) - printk("(none)"); - printk("]\n"); - - /* Interrogate IOMMU for error status. */ - schizo_check_iommu_error(pbm, UE_ERR); - - return IRQ_HANDLED; -} - -#define SCHIZO_CE_AFSR 0x10040UL -#define SCHIZO_CE_AFAR 0x10048UL - -#define SCHIZO_CEAFSR_PPIO 0x8000000000000000UL -#define SCHIZO_CEAFSR_PDRD 0x4000000000000000UL -#define SCHIZO_CEAFSR_PDWR 0x2000000000000000UL -#define SCHIZO_CEAFSR_SPIO 0x1000000000000000UL -#define SCHIZO_CEAFSR_SDMA 0x0800000000000000UL -#define SCHIZO_CEAFSR_ERRPNDG 0x0300000000000000UL -#define SCHIZO_CEAFSR_BMSK 0x000003ff00000000UL -#define SCHIZO_CEAFSR_QOFF 0x00000000c0000000UL -#define SCHIZO_CEAFSR_AID 0x000000001f000000UL -#define SCHIZO_CEAFSR_PARTIAL 0x0000000000800000UL -#define SCHIZO_CEAFSR_OWNEDIN 0x0000000000400000UL -#define SCHIZO_CEAFSR_MTAGSYND 0x00000000000f0000UL -#define SCHIZO_CEAFSR_MTAG 0x000000000000e000UL -#define SCHIZO_CEAFSR_ECCSYND 0x00000000000001ffUL - -static irqreturn_t schizo_ce_intr(int irq, void *dev_id) -{ - struct pci_pbm_info *pbm = dev_id; - unsigned long afsr_reg = pbm->controller_regs + SCHIZO_CE_AFSR; - unsigned long afar_reg = pbm->controller_regs + SCHIZO_CE_AFAR; - unsigned long afsr, afar, error_bits; - int reported, limit; - - /* Latch error status. */ - afar = upa_readq(afar_reg); - - /* If either of the error pending bits are set in the - * AFSR, the error status is being actively updated by - * the hardware and we must re-read to get a clean value. - */ - limit = 1000; - do { - afsr = upa_readq(afsr_reg); - } while ((afsr & SCHIZO_UEAFSR_ERRPNDG) != 0 && --limit); - - /* Clear primary/secondary error status bits. */ - error_bits = afsr & - (SCHIZO_CEAFSR_PPIO | SCHIZO_CEAFSR_PDRD | SCHIZO_CEAFSR_PDWR | - SCHIZO_CEAFSR_SPIO | SCHIZO_CEAFSR_SDMA); - if (!error_bits) - return IRQ_NONE; - upa_writeq(error_bits, afsr_reg); - - /* Log the error. */ - printk("%s: Correctable Error, primary error type[%s]\n", - pbm->name, - (((error_bits & SCHIZO_CEAFSR_PPIO) ? - "PIO" : - ((error_bits & SCHIZO_CEAFSR_PDRD) ? - "DMA Read" : - ((error_bits & SCHIZO_CEAFSR_PDWR) ? - "DMA Write" : "???"))))); - - /* XXX Use syndrome and afar to print out module string just like - * XXX UDB CE trap handler does... -DaveM - */ - printk("%s: bytemask[%04lx] qword_offset[%lx] SAFARI_AID[%02lx]\n", - pbm->name, - (afsr & SCHIZO_UEAFSR_BMSK) >> 32UL, - (afsr & SCHIZO_UEAFSR_QOFF) >> 30UL, - (afsr & SCHIZO_UEAFSR_AID) >> 24UL); - printk("%s: partial[%d] owned_in[%d] mtag[%lx] mtag_synd[%lx] ecc_sync[%lx]\n", - pbm->name, - (afsr & SCHIZO_UEAFSR_PARTIAL) ? 1 : 0, - (afsr & SCHIZO_UEAFSR_OWNEDIN) ? 1 : 0, - (afsr & SCHIZO_UEAFSR_MTAG) >> 13UL, - (afsr & SCHIZO_UEAFSR_MTAGSYND) >> 16UL, - (afsr & SCHIZO_UEAFSR_ECCSYND) >> 0UL); - printk("%s: CE AFAR [%016lx]\n", pbm->name, afar); - printk("%s: CE Secondary errors [", pbm->name); - reported = 0; - if (afsr & SCHIZO_CEAFSR_SPIO) { - reported++; - printk("(PIO)"); - } - if (afsr & SCHIZO_CEAFSR_SDMA) { - reported++; - printk("(DMA)"); - } - if (!reported) - printk("(none)"); - printk("]\n"); - - return IRQ_HANDLED; -} - -#define SCHIZO_PCI_AFSR 0x2010UL -#define SCHIZO_PCI_AFAR 0x2018UL - -#define SCHIZO_PCIAFSR_PMA 0x8000000000000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_PTA 0x4000000000000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_PRTRY 0x2000000000000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_PPERR 0x1000000000000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_PTTO 0x0800000000000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_PUNUS 0x0400000000000000UL /* Schizo */ -#define SCHIZO_PCIAFSR_SMA 0x0200000000000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_STA 0x0100000000000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_SRTRY 0x0080000000000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_SPERR 0x0040000000000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_STTO 0x0020000000000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_SUNUS 0x0010000000000000UL /* Schizo */ -#define SCHIZO_PCIAFSR_BMSK 0x000003ff00000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_BLK 0x0000000080000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_CFG 0x0000000040000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_MEM 0x0000000020000000UL /* Schizo/Tomatillo */ -#define SCHIZO_PCIAFSR_IO 0x0000000010000000UL /* Schizo/Tomatillo */ - -#define SCHIZO_PCI_CTRL (0x2000UL) -#define SCHIZO_PCICTRL_BUS_UNUS (1UL << 63UL) /* Safari */ -#define SCHIZO_PCICTRL_DTO_INT (1UL << 61UL) /* Tomatillo */ -#define SCHIZO_PCICTRL_ARB_PRIO (0x1ff << 52UL) /* Tomatillo */ -#define SCHIZO_PCICTRL_ESLCK (1UL << 51UL) /* Safari */ -#define SCHIZO_PCICTRL_ERRSLOT (7UL << 48UL) /* Safari */ -#define SCHIZO_PCICTRL_TTO_ERR (1UL << 38UL) /* Safari/Tomatillo */ -#define SCHIZO_PCICTRL_RTRY_ERR (1UL << 37UL) /* Safari/Tomatillo */ -#define SCHIZO_PCICTRL_DTO_ERR (1UL << 36UL) /* Safari/Tomatillo */ -#define SCHIZO_PCICTRL_SBH_ERR (1UL << 35UL) /* Safari */ -#define SCHIZO_PCICTRL_SERR (1UL << 34UL) /* Safari/Tomatillo */ -#define SCHIZO_PCICTRL_PCISPD (1UL << 33UL) /* Safari */ -#define SCHIZO_PCICTRL_MRM_PREF (1UL << 30UL) /* Tomatillo */ -#define SCHIZO_PCICTRL_RDO_PREF (1UL << 29UL) /* Tomatillo */ -#define SCHIZO_PCICTRL_RDL_PREF (1UL << 28UL) /* Tomatillo */ -#define SCHIZO_PCICTRL_PTO (3UL << 24UL) /* Safari/Tomatillo */ -#define SCHIZO_PCICTRL_PTO_SHIFT 24UL -#define SCHIZO_PCICTRL_TRWSW (7UL << 21UL) /* Tomatillo */ -#define SCHIZO_PCICTRL_F_TGT_A (1UL << 20UL) /* Tomatillo */ -#define SCHIZO_PCICTRL_S_DTO_INT (1UL << 19UL) /* Safari */ -#define SCHIZO_PCICTRL_F_TGT_RT (1UL << 19UL) /* Tomatillo */ -#define SCHIZO_PCICTRL_SBH_INT (1UL << 18UL) /* Safari */ -#define SCHIZO_PCICTRL_T_DTO_INT (1UL << 18UL) /* Tomatillo */ -#define SCHIZO_PCICTRL_EEN (1UL << 17UL) /* Safari/Tomatillo */ -#define SCHIZO_PCICTRL_PARK (1UL << 16UL) /* Safari/Tomatillo */ -#define SCHIZO_PCICTRL_PCIRST (1UL << 8UL) /* Safari */ -#define SCHIZO_PCICTRL_ARB_S (0x3fUL << 0UL) /* Safari */ -#define SCHIZO_PCICTRL_ARB_T (0xffUL << 0UL) /* Tomatillo */ - -static irqreturn_t schizo_pcierr_intr_other(struct pci_pbm_info *pbm) -{ - unsigned long csr_reg, csr, csr_error_bits; - irqreturn_t ret = IRQ_NONE; - u16 stat; - - csr_reg = pbm->pbm_regs + SCHIZO_PCI_CTRL; - csr = upa_readq(csr_reg); - csr_error_bits = - csr & (SCHIZO_PCICTRL_BUS_UNUS | - SCHIZO_PCICTRL_TTO_ERR | - SCHIZO_PCICTRL_RTRY_ERR | - SCHIZO_PCICTRL_DTO_ERR | - SCHIZO_PCICTRL_SBH_ERR | - SCHIZO_PCICTRL_SERR); - if (csr_error_bits) { - /* Clear the errors. */ - upa_writeq(csr, csr_reg); - - /* Log 'em. */ - if (csr_error_bits & SCHIZO_PCICTRL_BUS_UNUS) - printk("%s: Bus unusable error asserted.\n", - pbm->name); - if (csr_error_bits & SCHIZO_PCICTRL_TTO_ERR) - printk("%s: PCI TRDY# timeout error asserted.\n", - pbm->name); - if (csr_error_bits & SCHIZO_PCICTRL_RTRY_ERR) - printk("%s: PCI excessive retry error asserted.\n", - pbm->name); - if (csr_error_bits & SCHIZO_PCICTRL_DTO_ERR) - printk("%s: PCI discard timeout error asserted.\n", - pbm->name); - if (csr_error_bits & SCHIZO_PCICTRL_SBH_ERR) - printk("%s: PCI streaming byte hole error asserted.\n", - pbm->name); - if (csr_error_bits & SCHIZO_PCICTRL_SERR) - printk("%s: PCI SERR signal asserted.\n", - pbm->name); - ret = IRQ_HANDLED; - } - pci_read_config_word(pbm->pci_bus->self, PCI_STATUS, &stat); - if (stat & (PCI_STATUS_PARITY | - PCI_STATUS_SIG_TARGET_ABORT | - PCI_STATUS_REC_TARGET_ABORT | - PCI_STATUS_REC_MASTER_ABORT | - PCI_STATUS_SIG_SYSTEM_ERROR)) { - printk("%s: PCI bus error, PCI_STATUS[%04x]\n", - pbm->name, stat); - pci_write_config_word(pbm->pci_bus->self, PCI_STATUS, 0xffff); - ret = IRQ_HANDLED; - } - return ret; -} - -static irqreturn_t schizo_pcierr_intr(int irq, void *dev_id) -{ - struct pci_pbm_info *pbm = dev_id; - unsigned long afsr_reg, afar_reg, base; - unsigned long afsr, afar, error_bits; - int reported; - - base = pbm->pbm_regs; - - afsr_reg = base + SCHIZO_PCI_AFSR; - afar_reg = base + SCHIZO_PCI_AFAR; - - /* Latch error status. */ - afar = upa_readq(afar_reg); - afsr = upa_readq(afsr_reg); - - /* Clear primary/secondary error status bits. */ - error_bits = afsr & - (SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_PTA | - SCHIZO_PCIAFSR_PRTRY | SCHIZO_PCIAFSR_PPERR | - SCHIZO_PCIAFSR_PTTO | SCHIZO_PCIAFSR_PUNUS | - SCHIZO_PCIAFSR_SMA | SCHIZO_PCIAFSR_STA | - SCHIZO_PCIAFSR_SRTRY | SCHIZO_PCIAFSR_SPERR | - SCHIZO_PCIAFSR_STTO | SCHIZO_PCIAFSR_SUNUS); - if (!error_bits) - return schizo_pcierr_intr_other(pbm); - upa_writeq(error_bits, afsr_reg); - - /* Log the error. */ - printk("%s: PCI Error, primary error type[%s]\n", - pbm->name, - (((error_bits & SCHIZO_PCIAFSR_PMA) ? - "Master Abort" : - ((error_bits & SCHIZO_PCIAFSR_PTA) ? - "Target Abort" : - ((error_bits & SCHIZO_PCIAFSR_PRTRY) ? - "Excessive Retries" : - ((error_bits & SCHIZO_PCIAFSR_PPERR) ? - "Parity Error" : - ((error_bits & SCHIZO_PCIAFSR_PTTO) ? - "Timeout" : - ((error_bits & SCHIZO_PCIAFSR_PUNUS) ? - "Bus Unusable" : "???")))))))); - printk("%s: bytemask[%04lx] was_block(%d) space(%s)\n", - pbm->name, - (afsr & SCHIZO_PCIAFSR_BMSK) >> 32UL, - (afsr & SCHIZO_PCIAFSR_BLK) ? 1 : 0, - ((afsr & SCHIZO_PCIAFSR_CFG) ? - "Config" : - ((afsr & SCHIZO_PCIAFSR_MEM) ? - "Memory" : - ((afsr & SCHIZO_PCIAFSR_IO) ? - "I/O" : "???")))); - printk("%s: PCI AFAR [%016lx]\n", - pbm->name, afar); - printk("%s: PCI Secondary errors [", - pbm->name); - reported = 0; - if (afsr & SCHIZO_PCIAFSR_SMA) { - reported++; - printk("(Master Abort)"); - } - if (afsr & SCHIZO_PCIAFSR_STA) { - reported++; - printk("(Target Abort)"); - } - if (afsr & SCHIZO_PCIAFSR_SRTRY) { - reported++; - printk("(Excessive Retries)"); - } - if (afsr & SCHIZO_PCIAFSR_SPERR) { - reported++; - printk("(Parity Error)"); - } - if (afsr & SCHIZO_PCIAFSR_STTO) { - reported++; - printk("(Timeout)"); - } - if (afsr & SCHIZO_PCIAFSR_SUNUS) { - reported++; - printk("(Bus Unusable)"); - } - if (!reported) - printk("(none)"); - printk("]\n"); - - /* For the error types shown, scan PBM's PCI bus for devices - * which have logged that error type. - */ - - /* If we see a Target Abort, this could be the result of an - * IOMMU translation error of some sort. It is extremely - * useful to log this information as usually it indicates - * a bug in the IOMMU support code or a PCI device driver. - */ - if (error_bits & (SCHIZO_PCIAFSR_PTA | SCHIZO_PCIAFSR_STA)) { - schizo_check_iommu_error(pbm, PCI_ERR); - pci_scan_for_target_abort(pbm, pbm->pci_bus); - } - if (error_bits & (SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_SMA)) - pci_scan_for_master_abort(pbm, pbm->pci_bus); - - /* For excessive retries, PSYCHO/PBM will abort the device - * and there is no way to specifically check for excessive - * retries in the config space status registers. So what - * we hope is that we'll catch it via the master/target - * abort events. - */ - - if (error_bits & (SCHIZO_PCIAFSR_PPERR | SCHIZO_PCIAFSR_SPERR)) - pci_scan_for_parity_error(pbm, pbm->pci_bus); - - return IRQ_HANDLED; -} - -#define SCHIZO_SAFARI_ERRLOG 0x10018UL - -#define SAFARI_ERRLOG_ERROUT 0x8000000000000000UL - -#define BUS_ERROR_BADCMD 0x4000000000000000UL /* Schizo/Tomatillo */ -#define BUS_ERROR_SSMDIS 0x2000000000000000UL /* Safari */ -#define BUS_ERROR_BADMA 0x1000000000000000UL /* Safari */ -#define BUS_ERROR_BADMB 0x0800000000000000UL /* Safari */ -#define BUS_ERROR_BADMC 0x0400000000000000UL /* Safari */ -#define BUS_ERROR_SNOOP_GR 0x0000000000200000UL /* Tomatillo */ -#define BUS_ERROR_SNOOP_PCI 0x0000000000100000UL /* Tomatillo */ -#define BUS_ERROR_SNOOP_RD 0x0000000000080000UL /* Tomatillo */ -#define BUS_ERROR_SNOOP_RDS 0x0000000000020000UL /* Tomatillo */ -#define BUS_ERROR_SNOOP_RDSA 0x0000000000010000UL /* Tomatillo */ -#define BUS_ERROR_SNOOP_OWN 0x0000000000008000UL /* Tomatillo */ -#define BUS_ERROR_SNOOP_RDO 0x0000000000004000UL /* Tomatillo */ -#define BUS_ERROR_CPU1PS 0x0000000000002000UL /* Safari */ -#define BUS_ERROR_WDATA_PERR 0x0000000000002000UL /* Tomatillo */ -#define BUS_ERROR_CPU1PB 0x0000000000001000UL /* Safari */ -#define BUS_ERROR_CTRL_PERR 0x0000000000001000UL /* Tomatillo */ -#define BUS_ERROR_CPU0PS 0x0000000000000800UL /* Safari */ -#define BUS_ERROR_SNOOP_ERR 0x0000000000000800UL /* Tomatillo */ -#define BUS_ERROR_CPU0PB 0x0000000000000400UL /* Safari */ -#define BUS_ERROR_JBUS_ILL_B 0x0000000000000400UL /* Tomatillo */ -#define BUS_ERROR_CIQTO 0x0000000000000200UL /* Safari */ -#define BUS_ERROR_LPQTO 0x0000000000000100UL /* Safari */ -#define BUS_ERROR_JBUS_ILL_C 0x0000000000000100UL /* Tomatillo */ -#define BUS_ERROR_SFPQTO 0x0000000000000080UL /* Safari */ -#define BUS_ERROR_UFPQTO 0x0000000000000040UL /* Safari */ -#define BUS_ERROR_RD_PERR 0x0000000000000040UL /* Tomatillo */ -#define BUS_ERROR_APERR 0x0000000000000020UL /* Safari/Tomatillo */ -#define BUS_ERROR_UNMAP 0x0000000000000010UL /* Safari/Tomatillo */ -#define BUS_ERROR_BUSERR 0x0000000000000004UL /* Safari/Tomatillo */ -#define BUS_ERROR_TIMEOUT 0x0000000000000002UL /* Safari/Tomatillo */ -#define BUS_ERROR_ILL 0x0000000000000001UL /* Safari */ - -/* We only expect UNMAP errors here. The rest of the Safari errors - * are marked fatal and thus cause a system reset. - */ -static irqreturn_t schizo_safarierr_intr(int irq, void *dev_id) -{ - struct pci_pbm_info *pbm = dev_id; - u64 errlog; - - errlog = upa_readq(pbm->controller_regs + SCHIZO_SAFARI_ERRLOG); - upa_writeq(errlog & ~(SAFARI_ERRLOG_ERROUT), - pbm->controller_regs + SCHIZO_SAFARI_ERRLOG); - - if (!(errlog & BUS_ERROR_UNMAP)) { - printk("%s: Unexpected Safari/JBUS error interrupt, errlog[%016lx]\n", - pbm->name, errlog); - - return IRQ_HANDLED; - } - - printk("%s: Safari/JBUS interrupt, UNMAPPED error, interrogating IOMMUs.\n", - pbm->name); - schizo_check_iommu_error(pbm, SAFARI_ERR); - - return IRQ_HANDLED; -} - -/* Nearly identical to PSYCHO equivalents... */ -#define SCHIZO_ECC_CTRL 0x10020UL -#define SCHIZO_ECCCTRL_EE 0x8000000000000000UL /* Enable ECC Checking */ -#define SCHIZO_ECCCTRL_UE 0x4000000000000000UL /* Enable UE Interrupts */ -#define SCHIZO_ECCCTRL_CE 0x2000000000000000UL /* Enable CE INterrupts */ - -#define SCHIZO_SAFARI_ERRCTRL 0x10008UL -#define SCHIZO_SAFERRCTRL_EN 0x8000000000000000UL -#define SCHIZO_SAFARI_IRQCTRL 0x10010UL -#define SCHIZO_SAFIRQCTRL_EN 0x8000000000000000UL - -static int pbm_routes_this_ino(struct pci_pbm_info *pbm, u32 ino) -{ - ino &= IMAP_INO; - - if (pbm->ino_bitmap & (1UL << ino)) - return 1; - - return 0; -} - -/* How the Tomatillo IRQs are routed around is pure guesswork here. - * - * All the Tomatillo devices I see in prtconf dumps seem to have only - * a single PCI bus unit attached to it. It would seem they are separate - * devices because their PortID (ie. JBUS ID) values are all different - * and thus the registers are mapped to totally different locations. - * - * However, two Tomatillo's look "similar" in that the only difference - * in their PortID is the lowest bit. - * - * So if we were to ignore this lower bit, it certainly looks like two - * PCI bus units of the same Tomatillo. I still have not really - * figured this out... - */ -static void tomatillo_register_error_handlers(struct pci_pbm_info *pbm) -{ - struct of_device *op = of_find_device_by_node(pbm->op->node); - u64 tmp, err_mask, err_no_mask; - int err; - - /* Tomatillo IRQ property layout is: - * 0: PCIERR - * 1: UE ERR - * 2: CE ERR - * 3: SERR - * 4: POWER FAIL? - */ - - if (pbm_routes_this_ino(pbm, SCHIZO_UE_INO)) { - err = request_irq(op->irqs[1], schizo_ue_intr, 0, - "TOMATILLO_UE", pbm); - if (err) - printk(KERN_WARNING "%s: Could not register UE, " - "err=%d\n", pbm->name, err); - } - if (pbm_routes_this_ino(pbm, SCHIZO_CE_INO)) { - err = request_irq(op->irqs[2], schizo_ce_intr, 0, - "TOMATILLO_CE", pbm); - if (err) - printk(KERN_WARNING "%s: Could not register CE, " - "err=%d\n", pbm->name, err); - } - err = 0; - if (pbm_routes_this_ino(pbm, SCHIZO_PCIERR_A_INO)) { - err = request_irq(op->irqs[0], schizo_pcierr_intr, 0, - "TOMATILLO_PCIERR", pbm); - } else if (pbm_routes_this_ino(pbm, SCHIZO_PCIERR_B_INO)) { - err = request_irq(op->irqs[0], schizo_pcierr_intr, 0, - "TOMATILLO_PCIERR", pbm); - } - if (err) - printk(KERN_WARNING "%s: Could not register PCIERR, " - "err=%d\n", pbm->name, err); - - if (pbm_routes_this_ino(pbm, SCHIZO_SERR_INO)) { - err = request_irq(op->irqs[3], schizo_safarierr_intr, 0, - "TOMATILLO_SERR", pbm); - if (err) - printk(KERN_WARNING "%s: Could not register SERR, " - "err=%d\n", pbm->name, err); - } - - /* Enable UE and CE interrupts for controller. */ - upa_writeq((SCHIZO_ECCCTRL_EE | - SCHIZO_ECCCTRL_UE | - SCHIZO_ECCCTRL_CE), pbm->controller_regs + SCHIZO_ECC_CTRL); - - /* Enable PCI Error interrupts and clear error - * bits. - */ - err_mask = (SCHIZO_PCICTRL_BUS_UNUS | - SCHIZO_PCICTRL_TTO_ERR | - SCHIZO_PCICTRL_RTRY_ERR | - SCHIZO_PCICTRL_SERR | - SCHIZO_PCICTRL_EEN); - - err_no_mask = SCHIZO_PCICTRL_DTO_ERR; - - tmp = upa_readq(pbm->pbm_regs + SCHIZO_PCI_CTRL); - tmp |= err_mask; - tmp &= ~err_no_mask; - upa_writeq(tmp, pbm->pbm_regs + SCHIZO_PCI_CTRL); - - err_mask = (SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_PTA | - SCHIZO_PCIAFSR_PRTRY | SCHIZO_PCIAFSR_PPERR | - SCHIZO_PCIAFSR_PTTO | - SCHIZO_PCIAFSR_SMA | SCHIZO_PCIAFSR_STA | - SCHIZO_PCIAFSR_SRTRY | SCHIZO_PCIAFSR_SPERR | - SCHIZO_PCIAFSR_STTO); - - upa_writeq(err_mask, pbm->pbm_regs + SCHIZO_PCI_AFSR); - - err_mask = (BUS_ERROR_BADCMD | BUS_ERROR_SNOOP_GR | - BUS_ERROR_SNOOP_PCI | BUS_ERROR_SNOOP_RD | - BUS_ERROR_SNOOP_RDS | BUS_ERROR_SNOOP_RDSA | - BUS_ERROR_SNOOP_OWN | BUS_ERROR_SNOOP_RDO | - BUS_ERROR_WDATA_PERR | BUS_ERROR_CTRL_PERR | - BUS_ERROR_SNOOP_ERR | BUS_ERROR_JBUS_ILL_B | - BUS_ERROR_JBUS_ILL_C | BUS_ERROR_RD_PERR | - BUS_ERROR_APERR | BUS_ERROR_UNMAP | - BUS_ERROR_BUSERR | BUS_ERROR_TIMEOUT); - - upa_writeq((SCHIZO_SAFERRCTRL_EN | err_mask), - pbm->controller_regs + SCHIZO_SAFARI_ERRCTRL); - - upa_writeq((SCHIZO_SAFIRQCTRL_EN | (BUS_ERROR_UNMAP)), - pbm->controller_regs + SCHIZO_SAFARI_IRQCTRL); -} - -static void schizo_register_error_handlers(struct pci_pbm_info *pbm) -{ - struct of_device *op = of_find_device_by_node(pbm->op->node); - u64 tmp, err_mask, err_no_mask; - int err; - - /* Schizo IRQ property layout is: - * 0: PCIERR - * 1: UE ERR - * 2: CE ERR - * 3: SERR - * 4: POWER FAIL? - */ - - if (pbm_routes_this_ino(pbm, SCHIZO_UE_INO)) { - err = request_irq(op->irqs[1], schizo_ue_intr, 0, - "SCHIZO_UE", pbm); - if (err) - printk(KERN_WARNING "%s: Could not register UE, " - "err=%d\n", pbm->name, err); - } - if (pbm_routes_this_ino(pbm, SCHIZO_CE_INO)) { - err = request_irq(op->irqs[2], schizo_ce_intr, 0, - "SCHIZO_CE", pbm); - if (err) - printk(KERN_WARNING "%s: Could not register CE, " - "err=%d\n", pbm->name, err); - } - err = 0; - if (pbm_routes_this_ino(pbm, SCHIZO_PCIERR_A_INO)) { - err = request_irq(op->irqs[0], schizo_pcierr_intr, 0, - "SCHIZO_PCIERR", pbm); - } else if (pbm_routes_this_ino(pbm, SCHIZO_PCIERR_B_INO)) { - err = request_irq(op->irqs[0], schizo_pcierr_intr, 0, - "SCHIZO_PCIERR", pbm); - } - if (err) - printk(KERN_WARNING "%s: Could not register PCIERR, " - "err=%d\n", pbm->name, err); - - if (pbm_routes_this_ino(pbm, SCHIZO_SERR_INO)) { - err = request_irq(op->irqs[3], schizo_safarierr_intr, 0, - "SCHIZO_SERR", pbm); - if (err) - printk(KERN_WARNING "%s: Could not register SERR, " - "err=%d\n", pbm->name, err); - } - - /* Enable UE and CE interrupts for controller. */ - upa_writeq((SCHIZO_ECCCTRL_EE | - SCHIZO_ECCCTRL_UE | - SCHIZO_ECCCTRL_CE), pbm->controller_regs + SCHIZO_ECC_CTRL); - - err_mask = (SCHIZO_PCICTRL_BUS_UNUS | - SCHIZO_PCICTRL_ESLCK | - SCHIZO_PCICTRL_TTO_ERR | - SCHIZO_PCICTRL_RTRY_ERR | - SCHIZO_PCICTRL_SBH_ERR | - SCHIZO_PCICTRL_SERR | - SCHIZO_PCICTRL_EEN); - - err_no_mask = (SCHIZO_PCICTRL_DTO_ERR | - SCHIZO_PCICTRL_SBH_INT); - - /* Enable PCI Error interrupts and clear error - * bits for each PBM. - */ - tmp = upa_readq(pbm->pbm_regs + SCHIZO_PCI_CTRL); - tmp |= err_mask; - tmp &= ~err_no_mask; - upa_writeq(tmp, pbm->pbm_regs + SCHIZO_PCI_CTRL); - - upa_writeq((SCHIZO_PCIAFSR_PMA | SCHIZO_PCIAFSR_PTA | - SCHIZO_PCIAFSR_PRTRY | SCHIZO_PCIAFSR_PPERR | - SCHIZO_PCIAFSR_PTTO | SCHIZO_PCIAFSR_PUNUS | - SCHIZO_PCIAFSR_SMA | SCHIZO_PCIAFSR_STA | - SCHIZO_PCIAFSR_SRTRY | SCHIZO_PCIAFSR_SPERR | - SCHIZO_PCIAFSR_STTO | SCHIZO_PCIAFSR_SUNUS), - pbm->pbm_regs + SCHIZO_PCI_AFSR); - - /* Make all Safari error conditions fatal except unmapped - * errors which we make generate interrupts. - */ - err_mask = (BUS_ERROR_BADCMD | BUS_ERROR_SSMDIS | - BUS_ERROR_BADMA | BUS_ERROR_BADMB | - BUS_ERROR_BADMC | - BUS_ERROR_CPU1PS | BUS_ERROR_CPU1PB | - BUS_ERROR_CPU0PS | BUS_ERROR_CPU0PB | - BUS_ERROR_CIQTO | - BUS_ERROR_LPQTO | BUS_ERROR_SFPQTO | - BUS_ERROR_UFPQTO | BUS_ERROR_APERR | - BUS_ERROR_BUSERR | BUS_ERROR_TIMEOUT | - BUS_ERROR_ILL); -#if 1 - /* XXX Something wrong with some Excalibur systems - * XXX Sun is shipping. The behavior on a 2-cpu - * XXX machine is that both CPU1 parity error bits - * XXX are set and are immediately set again when - * XXX their error status bits are cleared. Just - * XXX ignore them for now. -DaveM - */ - err_mask &= ~(BUS_ERROR_CPU1PS | BUS_ERROR_CPU1PB | - BUS_ERROR_CPU0PS | BUS_ERROR_CPU0PB); -#endif - - upa_writeq((SCHIZO_SAFERRCTRL_EN | err_mask), - pbm->controller_regs + SCHIZO_SAFARI_ERRCTRL); -} - -static void pbm_config_busmastering(struct pci_pbm_info *pbm) -{ - u8 *addr; - - /* Set cache-line size to 64 bytes, this is actually - * a nop but I do it for completeness. - */ - addr = schizo_pci_config_mkaddr(pbm, pbm->pci_first_busno, - 0, PCI_CACHE_LINE_SIZE); - pci_config_write8(addr, 64 / sizeof(u32)); - - /* Set PBM latency timer to 64 PCI clocks. */ - addr = schizo_pci_config_mkaddr(pbm, pbm->pci_first_busno, - 0, PCI_LATENCY_TIMER); - pci_config_write8(addr, 64); -} - -static void __devinit schizo_scan_bus(struct pci_pbm_info *pbm, - struct device *parent) -{ - pbm_config_busmastering(pbm); - pbm->is_66mhz_capable = - (of_find_property(pbm->op->node, "66mhz-capable", NULL) - != NULL); - - pbm->pci_bus = pci_scan_one_pbm(pbm, parent); - - if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO) - tomatillo_register_error_handlers(pbm); - else - schizo_register_error_handlers(pbm); -} - -#define SCHIZO_STRBUF_CONTROL (0x02800UL) -#define SCHIZO_STRBUF_FLUSH (0x02808UL) -#define SCHIZO_STRBUF_FSYNC (0x02810UL) -#define SCHIZO_STRBUF_CTXFLUSH (0x02818UL) -#define SCHIZO_STRBUF_CTXMATCH (0x10000UL) - -static void schizo_pbm_strbuf_init(struct pci_pbm_info *pbm) -{ - unsigned long base = pbm->pbm_regs; - u64 control; - - if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO) { - /* TOMATILLO lacks streaming cache. */ - return; - } - - /* SCHIZO has context flushing. */ - pbm->stc.strbuf_control = base + SCHIZO_STRBUF_CONTROL; - pbm->stc.strbuf_pflush = base + SCHIZO_STRBUF_FLUSH; - pbm->stc.strbuf_fsync = base + SCHIZO_STRBUF_FSYNC; - pbm->stc.strbuf_ctxflush = base + SCHIZO_STRBUF_CTXFLUSH; - pbm->stc.strbuf_ctxmatch_base = base + SCHIZO_STRBUF_CTXMATCH; - - pbm->stc.strbuf_flushflag = (volatile unsigned long *) - ((((unsigned long)&pbm->stc.__flushflag_buf[0]) - + 63UL) - & ~63UL); - pbm->stc.strbuf_flushflag_pa = (unsigned long) - __pa(pbm->stc.strbuf_flushflag); - - /* Turn off LRU locking and diag mode, enable the - * streaming buffer and leave the rerun-disable - * setting however OBP set it. - */ - control = upa_readq(pbm->stc.strbuf_control); - control &= ~(SCHIZO_STRBUF_CTRL_LPTR | - SCHIZO_STRBUF_CTRL_LENAB | - SCHIZO_STRBUF_CTRL_DENAB); - control |= SCHIZO_STRBUF_CTRL_ENAB; - upa_writeq(control, pbm->stc.strbuf_control); - - pbm->stc.strbuf_enabled = 1; -} - -#define SCHIZO_IOMMU_CONTROL (0x00200UL) -#define SCHIZO_IOMMU_TSBBASE (0x00208UL) -#define SCHIZO_IOMMU_FLUSH (0x00210UL) -#define SCHIZO_IOMMU_CTXFLUSH (0x00218UL) - -static int schizo_pbm_iommu_init(struct pci_pbm_info *pbm) -{ - static const u32 vdma_default[] = { 0xc0000000, 0x40000000 }; - unsigned long i, tagbase, database; - struct iommu *iommu = pbm->iommu; - int tsbsize, err; - const u32 *vdma; - u32 dma_mask; - u64 control; - - vdma = of_get_property(pbm->op->node, "virtual-dma", NULL); - if (!vdma) - vdma = vdma_default; - - dma_mask = vdma[0]; - switch (vdma[1]) { - case 0x20000000: - dma_mask |= 0x1fffffff; - tsbsize = 64; - break; - - case 0x40000000: - dma_mask |= 0x3fffffff; - tsbsize = 128; - break; - - case 0x80000000: - dma_mask |= 0x7fffffff; - tsbsize = 128; - break; - - default: - printk(KERN_ERR PFX "Strange virtual-dma size.\n"); - return -EINVAL; - } - - /* Register addresses, SCHIZO has iommu ctx flushing. */ - iommu->iommu_control = pbm->pbm_regs + SCHIZO_IOMMU_CONTROL; - iommu->iommu_tsbbase = pbm->pbm_regs + SCHIZO_IOMMU_TSBBASE; - iommu->iommu_flush = pbm->pbm_regs + SCHIZO_IOMMU_FLUSH; - iommu->iommu_tags = iommu->iommu_flush + (0xa580UL - 0x0210UL); - iommu->iommu_ctxflush = pbm->pbm_regs + SCHIZO_IOMMU_CTXFLUSH; - - /* We use the main control/status register of SCHIZO as the write - * completion register. - */ - iommu->write_complete_reg = pbm->controller_regs + 0x10000UL; - - /* - * Invalidate TLB Entries. - */ - control = upa_readq(iommu->iommu_control); - control |= SCHIZO_IOMMU_CTRL_DENAB; - upa_writeq(control, iommu->iommu_control); - - tagbase = SCHIZO_IOMMU_TAG, database = SCHIZO_IOMMU_DATA; - - for (i = 0; i < 16; i++) { - upa_writeq(0, pbm->pbm_regs + tagbase + (i * 8UL)); - upa_writeq(0, pbm->pbm_regs + database + (i * 8UL)); - } - - /* Leave diag mode enabled for full-flushing done - * in pci_iommu.c - */ - err = iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask, - pbm->numa_node); - if (err) { - printk(KERN_ERR PFX "iommu_table_init() fails with %d\n", err); - return err; - } - - upa_writeq(__pa(iommu->page_table), iommu->iommu_tsbbase); - - control = upa_readq(iommu->iommu_control); - control &= ~(SCHIZO_IOMMU_CTRL_TSBSZ | SCHIZO_IOMMU_CTRL_TBWSZ); - switch (tsbsize) { - case 64: - control |= SCHIZO_IOMMU_TSBSZ_64K; - break; - case 128: - control |= SCHIZO_IOMMU_TSBSZ_128K; - break; - } - - control |= SCHIZO_IOMMU_CTRL_ENAB; - upa_writeq(control, iommu->iommu_control); - - return 0; -} - -#define SCHIZO_PCI_IRQ_RETRY (0x1a00UL) -#define SCHIZO_IRQ_RETRY_INF 0xffUL - -#define SCHIZO_PCI_DIAG (0x2020UL) -#define SCHIZO_PCIDIAG_D_BADECC (1UL << 10UL) /* Disable BAD ECC errors (Schizo) */ -#define SCHIZO_PCIDIAG_D_BYPASS (1UL << 9UL) /* Disable MMU bypass mode (Schizo/Tomatillo) */ -#define SCHIZO_PCIDIAG_D_TTO (1UL << 8UL) /* Disable TTO errors (Schizo/Tomatillo) */ -#define SCHIZO_PCIDIAG_D_RTRYARB (1UL << 7UL) /* Disable retry arbitration (Schizo) */ -#define SCHIZO_PCIDIAG_D_RETRY (1UL << 6UL) /* Disable retry limit (Schizo/Tomatillo) */ -#define SCHIZO_PCIDIAG_D_INTSYNC (1UL << 5UL) /* Disable interrupt/DMA synch (Schizo/Tomatillo) */ -#define SCHIZO_PCIDIAG_I_DMA_PARITY (1UL << 3UL) /* Invert DMA parity (Schizo/Tomatillo) */ -#define SCHIZO_PCIDIAG_I_PIOD_PARITY (1UL << 2UL) /* Invert PIO data parity (Schizo/Tomatillo) */ -#define SCHIZO_PCIDIAG_I_PIOA_PARITY (1UL << 1UL) /* Invert PIO address parity (Schizo/Tomatillo) */ - -#define TOMATILLO_PCI_IOC_CSR (0x2248UL) -#define TOMATILLO_IOC_PART_WPENAB 0x0000000000080000UL -#define TOMATILLO_IOC_RDMULT_PENAB 0x0000000000040000UL -#define TOMATILLO_IOC_RDONE_PENAB 0x0000000000020000UL -#define TOMATILLO_IOC_RDLINE_PENAB 0x0000000000010000UL -#define TOMATILLO_IOC_RDMULT_PLEN 0x000000000000c000UL -#define TOMATILLO_IOC_RDMULT_PLEN_SHIFT 14UL -#define TOMATILLO_IOC_RDONE_PLEN 0x0000000000003000UL -#define TOMATILLO_IOC_RDONE_PLEN_SHIFT 12UL -#define TOMATILLO_IOC_RDLINE_PLEN 0x0000000000000c00UL -#define TOMATILLO_IOC_RDLINE_PLEN_SHIFT 10UL -#define TOMATILLO_IOC_PREF_OFF 0x00000000000003f8UL -#define TOMATILLO_IOC_PREF_OFF_SHIFT 3UL -#define TOMATILLO_IOC_RDMULT_CPENAB 0x0000000000000004UL -#define TOMATILLO_IOC_RDONE_CPENAB 0x0000000000000002UL -#define TOMATILLO_IOC_RDLINE_CPENAB 0x0000000000000001UL - -#define TOMATILLO_PCI_IOC_TDIAG (0x2250UL) -#define TOMATILLO_PCI_IOC_DDIAG (0x2290UL) - -static void schizo_pbm_hw_init(struct pci_pbm_info *pbm) -{ - u64 tmp; - - upa_writeq(5, pbm->pbm_regs + SCHIZO_PCI_IRQ_RETRY); - - tmp = upa_readq(pbm->pbm_regs + SCHIZO_PCI_CTRL); - - /* Enable arbiter for all PCI slots. */ - tmp |= 0xff; - - if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO && - pbm->chip_version >= 0x2) - tmp |= 0x3UL << SCHIZO_PCICTRL_PTO_SHIFT; - - if (!of_find_property(pbm->op->node, "no-bus-parking", NULL)) - tmp |= SCHIZO_PCICTRL_PARK; - else - tmp &= ~SCHIZO_PCICTRL_PARK; - - if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO && - pbm->chip_version <= 0x1) - tmp |= SCHIZO_PCICTRL_DTO_INT; - else - tmp &= ~SCHIZO_PCICTRL_DTO_INT; - - if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO) - tmp |= (SCHIZO_PCICTRL_MRM_PREF | - SCHIZO_PCICTRL_RDO_PREF | - SCHIZO_PCICTRL_RDL_PREF); - - upa_writeq(tmp, pbm->pbm_regs + SCHIZO_PCI_CTRL); - - tmp = upa_readq(pbm->pbm_regs + SCHIZO_PCI_DIAG); - tmp &= ~(SCHIZO_PCIDIAG_D_RTRYARB | - SCHIZO_PCIDIAG_D_RETRY | - SCHIZO_PCIDIAG_D_INTSYNC); - upa_writeq(tmp, pbm->pbm_regs + SCHIZO_PCI_DIAG); - - if (pbm->chip_type == PBM_CHIP_TYPE_TOMATILLO) { - /* Clear prefetch lengths to workaround a bug in - * Jalapeno... - */ - tmp = (TOMATILLO_IOC_PART_WPENAB | - (1 << TOMATILLO_IOC_PREF_OFF_SHIFT) | - TOMATILLO_IOC_RDMULT_CPENAB | - TOMATILLO_IOC_RDONE_CPENAB | - TOMATILLO_IOC_RDLINE_CPENAB); - - upa_writeq(tmp, pbm->pbm_regs + TOMATILLO_PCI_IOC_CSR); - } -} - -static int __devinit schizo_pbm_init(struct pci_pbm_info *pbm, - struct of_device *op, u32 portid, - int chip_type) -{ - const struct linux_prom64_registers *regs; - struct device_node *dp = op->node; - const char *chipset_name; - int is_pbm_a, err; - - switch (chip_type) { - case PBM_CHIP_TYPE_TOMATILLO: - chipset_name = "TOMATILLO"; - break; - - case PBM_CHIP_TYPE_SCHIZO_PLUS: - chipset_name = "SCHIZO+"; - break; - - case PBM_CHIP_TYPE_SCHIZO: - default: - chipset_name = "SCHIZO"; - break; - }; - - /* For SCHIZO, three OBP regs: - * 1) PBM controller regs - * 2) Schizo front-end controller regs (same for both PBMs) - * 3) PBM PCI config space - * - * For TOMATILLO, four OBP regs: - * 1) PBM controller regs - * 2) Tomatillo front-end controller regs - * 3) PBM PCI config space - * 4) Ichip regs - */ - regs = of_get_property(dp, "reg", NULL); - - is_pbm_a = ((regs[0].phys_addr & 0x00700000) == 0x00600000); - - pbm->next = pci_pbm_root; - pci_pbm_root = pbm; - - pbm->numa_node = -1; - - pbm->pci_ops = &sun4u_pci_ops; - pbm->config_space_reg_bits = 8; - - pbm->index = pci_num_pbms++; - - pbm->portid = portid; - pbm->op = op; - - pbm->chip_type = chip_type; - pbm->chip_version = of_getintprop_default(dp, "version#", 0); - pbm->chip_revision = of_getintprop_default(dp, "module-version#", 0); - - pbm->pbm_regs = regs[0].phys_addr; - pbm->controller_regs = regs[1].phys_addr - 0x10000UL; - - if (chip_type == PBM_CHIP_TYPE_TOMATILLO) - pbm->sync_reg = regs[3].phys_addr + 0x1a18UL; - - pbm->name = dp->full_name; - - printk("%s: %s PCI Bus Module ver[%x:%x]\n", - pbm->name, chipset_name, - pbm->chip_version, pbm->chip_revision); - - schizo_pbm_hw_init(pbm); - - pci_determine_mem_io_space(pbm); - - pci_get_pbm_props(pbm); - - err = schizo_pbm_iommu_init(pbm); - if (err) - return err; - - schizo_pbm_strbuf_init(pbm); - - schizo_scan_bus(pbm, &op->dev); - - return 0; -} - -static inline int portid_compare(u32 x, u32 y, int chip_type) -{ - if (chip_type == PBM_CHIP_TYPE_TOMATILLO) { - if (x == (y ^ 1)) - return 1; - return 0; - } - return (x == y); -} - -static struct pci_pbm_info * __devinit schizo_find_sibling(u32 portid, - int chip_type) -{ - struct pci_pbm_info *pbm; - - for (pbm = pci_pbm_root; pbm; pbm = pbm->next) { - if (portid_compare(pbm->portid, portid, chip_type)) - return pbm; - } - return NULL; -} - -static int __devinit __schizo_init(struct of_device *op, unsigned long chip_type) -{ - struct device_node *dp = op->node; - struct pci_pbm_info *pbm; - struct iommu *iommu; - u32 portid; - int err; - - portid = of_getintprop_default(dp, "portid", 0xff); - - err = -ENOMEM; - pbm = kzalloc(sizeof(*pbm), GFP_KERNEL); - if (!pbm) { - printk(KERN_ERR PFX "Cannot allocate pci_pbm_info.\n"); - goto out_err; - } - - pbm->sibling = schizo_find_sibling(portid, chip_type); - - iommu = kzalloc(sizeof(struct iommu), GFP_KERNEL); - if (!iommu) { - printk(KERN_ERR PFX "Cannot allocate PBM A iommu.\n"); - goto out_free_pbm; - } - - pbm->iommu = iommu; - - if (schizo_pbm_init(pbm, op, portid, chip_type)) - goto out_free_iommu; - - if (pbm->sibling) - pbm->sibling->sibling = pbm; - - dev_set_drvdata(&op->dev, pbm); - - return 0; - -out_free_iommu: - kfree(pbm->iommu); - -out_free_pbm: - kfree(pbm); - -out_err: - return err; -} - -static int __devinit schizo_probe(struct of_device *op, - const struct of_device_id *match) -{ - return __schizo_init(op, (unsigned long) match->data); -} - -/* The ordering of this table is very important. Some Tomatillo - * nodes announce that they are compatible with both pci108e,a801 - * and pci108e,8001. So list the chips in reverse chronological - * order. - */ -static struct of_device_id __initdata schizo_match[] = { - { - .name = "pci", - .compatible = "pci108e,a801", - .data = (void *) PBM_CHIP_TYPE_TOMATILLO, - }, - { - .name = "pci", - .compatible = "pci108e,8002", - .data = (void *) PBM_CHIP_TYPE_SCHIZO_PLUS, - }, - { - .name = "pci", - .compatible = "pci108e,8001", - .data = (void *) PBM_CHIP_TYPE_SCHIZO, - }, - {}, -}; - -static struct of_platform_driver schizo_driver = { - .name = DRIVER_NAME, - .match_table = schizo_match, - .probe = schizo_probe, -}; - -static int __init schizo_init(void) -{ - return of_register_driver(&schizo_driver, &of_bus_type); -} - -subsys_initcall(schizo_init); diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c deleted file mode 100644 index 34a1fded3941..000000000000 --- a/arch/sparc64/kernel/pci_sun4v.c +++ /dev/null @@ -1,1033 +0,0 @@ -/* pci_sun4v.c: SUN4V specific PCI controller support. - * - * Copyright (C) 2006, 2007, 2008 David S. Miller (davem@davemloft.net) - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/percpu.h> -#include <linux/irq.h> -#include <linux/msi.h> -#include <linux/log2.h> -#include <linux/of_device.h> - -#include <asm/iommu.h> -#include <asm/irq.h> -#include <asm/hypervisor.h> -#include <asm/prom.h> - -#include "pci_impl.h" -#include "iommu_common.h" - -#include "pci_sun4v.h" - -#define DRIVER_NAME "pci_sun4v" -#define PFX DRIVER_NAME ": " - -static unsigned long vpci_major = 1; -static unsigned long vpci_minor = 1; - -#define PGLIST_NENTS (PAGE_SIZE / sizeof(u64)) - -struct iommu_batch { - struct device *dev; /* Device mapping is for. */ - unsigned long prot; /* IOMMU page protections */ - unsigned long entry; /* Index into IOTSB. */ - u64 *pglist; /* List of physical pages */ - unsigned long npages; /* Number of pages in list. */ -}; - -static DEFINE_PER_CPU(struct iommu_batch, iommu_batch); -static int iommu_batch_initialized; - -/* Interrupts must be disabled. */ -static inline void iommu_batch_start(struct device *dev, unsigned long prot, unsigned long entry) -{ - struct iommu_batch *p = &__get_cpu_var(iommu_batch); - - p->dev = dev; - p->prot = prot; - p->entry = entry; - p->npages = 0; -} - -/* Interrupts must be disabled. */ -static long iommu_batch_flush(struct iommu_batch *p) -{ - struct pci_pbm_info *pbm = p->dev->archdata.host_controller; - unsigned long devhandle = pbm->devhandle; - unsigned long prot = p->prot; - unsigned long entry = p->entry; - u64 *pglist = p->pglist; - unsigned long npages = p->npages; - - while (npages != 0) { - long num; - - num = pci_sun4v_iommu_map(devhandle, HV_PCI_TSBID(0, entry), - npages, prot, __pa(pglist)); - if (unlikely(num < 0)) { - if (printk_ratelimit()) - printk("iommu_batch_flush: IOMMU map of " - "[%08lx:%08lx:%lx:%lx:%lx] failed with " - "status %ld\n", - devhandle, HV_PCI_TSBID(0, entry), - npages, prot, __pa(pglist), num); - return -1; - } - - entry += num; - npages -= num; - pglist += num; - } - - p->entry = entry; - p->npages = 0; - - return 0; -} - -static inline void iommu_batch_new_entry(unsigned long entry) -{ - struct iommu_batch *p = &__get_cpu_var(iommu_batch); - - if (p->entry + p->npages == entry) - return; - if (p->entry != ~0UL) - iommu_batch_flush(p); - p->entry = entry; -} - -/* Interrupts must be disabled. */ -static inline long iommu_batch_add(u64 phys_page) -{ - struct iommu_batch *p = &__get_cpu_var(iommu_batch); - - BUG_ON(p->npages >= PGLIST_NENTS); - - p->pglist[p->npages++] = phys_page; - if (p->npages == PGLIST_NENTS) - return iommu_batch_flush(p); - - return 0; -} - -/* Interrupts must be disabled. */ -static inline long iommu_batch_end(void) -{ - struct iommu_batch *p = &__get_cpu_var(iommu_batch); - - BUG_ON(p->npages >= PGLIST_NENTS); - - return iommu_batch_flush(p); -} - -static void *dma_4v_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addrp, gfp_t gfp) -{ - unsigned long flags, order, first_page, npages, n; - struct iommu *iommu; - struct page *page; - void *ret; - long entry; - int nid; - - size = IO_PAGE_ALIGN(size); - order = get_order(size); - if (unlikely(order >= MAX_ORDER)) - return NULL; - - npages = size >> IO_PAGE_SHIFT; - - nid = dev->archdata.numa_node; - page = alloc_pages_node(nid, gfp, order); - if (unlikely(!page)) - return NULL; - - first_page = (unsigned long) page_address(page); - memset((char *)first_page, 0, PAGE_SIZE << order); - - iommu = dev->archdata.iommu; - - spin_lock_irqsave(&iommu->lock, flags); - entry = iommu_range_alloc(dev, iommu, npages, NULL); - spin_unlock_irqrestore(&iommu->lock, flags); - - if (unlikely(entry == DMA_ERROR_CODE)) - goto range_alloc_fail; - - *dma_addrp = (iommu->page_table_map_base + - (entry << IO_PAGE_SHIFT)); - ret = (void *) first_page; - first_page = __pa(first_page); - - local_irq_save(flags); - - iommu_batch_start(dev, - (HV_PCI_MAP_ATTR_READ | - HV_PCI_MAP_ATTR_WRITE), - entry); - - for (n = 0; n < npages; n++) { - long err = iommu_batch_add(first_page + (n * PAGE_SIZE)); - if (unlikely(err < 0L)) - goto iommu_map_fail; - } - - if (unlikely(iommu_batch_end() < 0L)) - goto iommu_map_fail; - - local_irq_restore(flags); - - return ret; - -iommu_map_fail: - /* Interrupts are disabled. */ - spin_lock(&iommu->lock); - iommu_range_free(iommu, *dma_addrp, npages); - spin_unlock_irqrestore(&iommu->lock, flags); - -range_alloc_fail: - free_pages(first_page, order); - return NULL; -} - -static void dma_4v_free_coherent(struct device *dev, size_t size, void *cpu, - dma_addr_t dvma) -{ - struct pci_pbm_info *pbm; - struct iommu *iommu; - unsigned long flags, order, npages, entry; - u32 devhandle; - - npages = IO_PAGE_ALIGN(size) >> IO_PAGE_SHIFT; - iommu = dev->archdata.iommu; - pbm = dev->archdata.host_controller; - devhandle = pbm->devhandle; - entry = ((dvma - iommu->page_table_map_base) >> IO_PAGE_SHIFT); - - spin_lock_irqsave(&iommu->lock, flags); - - iommu_range_free(iommu, dvma, npages); - - do { - unsigned long num; - - num = pci_sun4v_iommu_demap(devhandle, HV_PCI_TSBID(0, entry), - npages); - entry += num; - npages -= num; - } while (npages != 0); - - spin_unlock_irqrestore(&iommu->lock, flags); - - order = get_order(size); - if (order < 10) - free_pages((unsigned long)cpu, order); -} - -static dma_addr_t dma_4v_map_single(struct device *dev, void *ptr, size_t sz, - enum dma_data_direction direction) -{ - struct iommu *iommu; - unsigned long flags, npages, oaddr; - unsigned long i, base_paddr; - u32 bus_addr, ret; - unsigned long prot; - long entry; - - iommu = dev->archdata.iommu; - - if (unlikely(direction == DMA_NONE)) - goto bad; - - oaddr = (unsigned long)ptr; - npages = IO_PAGE_ALIGN(oaddr + sz) - (oaddr & IO_PAGE_MASK); - npages >>= IO_PAGE_SHIFT; - - spin_lock_irqsave(&iommu->lock, flags); - entry = iommu_range_alloc(dev, iommu, npages, NULL); - spin_unlock_irqrestore(&iommu->lock, flags); - - if (unlikely(entry == DMA_ERROR_CODE)) - goto bad; - - bus_addr = (iommu->page_table_map_base + - (entry << IO_PAGE_SHIFT)); - ret = bus_addr | (oaddr & ~IO_PAGE_MASK); - base_paddr = __pa(oaddr & IO_PAGE_MASK); - prot = HV_PCI_MAP_ATTR_READ; - if (direction != DMA_TO_DEVICE) - prot |= HV_PCI_MAP_ATTR_WRITE; - - local_irq_save(flags); - - iommu_batch_start(dev, prot, entry); - - for (i = 0; i < npages; i++, base_paddr += IO_PAGE_SIZE) { - long err = iommu_batch_add(base_paddr); - if (unlikely(err < 0L)) - goto iommu_map_fail; - } - if (unlikely(iommu_batch_end() < 0L)) - goto iommu_map_fail; - - local_irq_restore(flags); - - return ret; - -bad: - if (printk_ratelimit()) - WARN_ON(1); - return DMA_ERROR_CODE; - -iommu_map_fail: - /* Interrupts are disabled. */ - spin_lock(&iommu->lock); - iommu_range_free(iommu, bus_addr, npages); - spin_unlock_irqrestore(&iommu->lock, flags); - - return DMA_ERROR_CODE; -} - -static void dma_4v_unmap_single(struct device *dev, dma_addr_t bus_addr, - size_t sz, enum dma_data_direction direction) -{ - struct pci_pbm_info *pbm; - struct iommu *iommu; - unsigned long flags, npages; - long entry; - u32 devhandle; - - if (unlikely(direction == DMA_NONE)) { - if (printk_ratelimit()) - WARN_ON(1); - return; - } - - iommu = dev->archdata.iommu; - pbm = dev->archdata.host_controller; - devhandle = pbm->devhandle; - - npages = IO_PAGE_ALIGN(bus_addr + sz) - (bus_addr & IO_PAGE_MASK); - npages >>= IO_PAGE_SHIFT; - bus_addr &= IO_PAGE_MASK; - - spin_lock_irqsave(&iommu->lock, flags); - - iommu_range_free(iommu, bus_addr, npages); - - entry = (bus_addr - iommu->page_table_map_base) >> IO_PAGE_SHIFT; - do { - unsigned long num; - - num = pci_sun4v_iommu_demap(devhandle, HV_PCI_TSBID(0, entry), - npages); - entry += num; - npages -= num; - } while (npages != 0); - - spin_unlock_irqrestore(&iommu->lock, flags); -} - -static int dma_4v_map_sg(struct device *dev, struct scatterlist *sglist, - int nelems, enum dma_data_direction direction) -{ - struct scatterlist *s, *outs, *segstart; - unsigned long flags, handle, prot; - dma_addr_t dma_next = 0, dma_addr; - unsigned int max_seg_size; - unsigned long seg_boundary_size; - int outcount, incount, i; - struct iommu *iommu; - unsigned long base_shift; - long err; - - BUG_ON(direction == DMA_NONE); - - iommu = dev->archdata.iommu; - if (nelems == 0 || !iommu) - return 0; - - prot = HV_PCI_MAP_ATTR_READ; - if (direction != DMA_TO_DEVICE) - prot |= HV_PCI_MAP_ATTR_WRITE; - - outs = s = segstart = &sglist[0]; - outcount = 1; - incount = nelems; - handle = 0; - - /* Init first segment length for backout at failure */ - outs->dma_length = 0; - - spin_lock_irqsave(&iommu->lock, flags); - - iommu_batch_start(dev, prot, ~0UL); - - max_seg_size = dma_get_max_seg_size(dev); - seg_boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, - IO_PAGE_SIZE) >> IO_PAGE_SHIFT; - base_shift = iommu->page_table_map_base >> IO_PAGE_SHIFT; - for_each_sg(sglist, s, nelems, i) { - unsigned long paddr, npages, entry, out_entry = 0, slen; - - slen = s->length; - /* Sanity check */ - if (slen == 0) { - dma_next = 0; - continue; - } - /* Allocate iommu entries for that segment */ - paddr = (unsigned long) SG_ENT_PHYS_ADDRESS(s); - npages = iommu_num_pages(paddr, slen, IO_PAGE_SIZE); - entry = iommu_range_alloc(dev, iommu, npages, &handle); - - /* Handle failure */ - if (unlikely(entry == DMA_ERROR_CODE)) { - if (printk_ratelimit()) - printk(KERN_INFO "iommu_alloc failed, iommu %p paddr %lx" - " npages %lx\n", iommu, paddr, npages); - goto iommu_map_failed; - } - - iommu_batch_new_entry(entry); - - /* Convert entry to a dma_addr_t */ - dma_addr = iommu->page_table_map_base + - (entry << IO_PAGE_SHIFT); - dma_addr |= (s->offset & ~IO_PAGE_MASK); - - /* Insert into HW table */ - paddr &= IO_PAGE_MASK; - while (npages--) { - err = iommu_batch_add(paddr); - if (unlikely(err < 0L)) - goto iommu_map_failed; - paddr += IO_PAGE_SIZE; - } - - /* If we are in an open segment, try merging */ - if (segstart != s) { - /* We cannot merge if: - * - allocated dma_addr isn't contiguous to previous allocation - */ - if ((dma_addr != dma_next) || - (outs->dma_length + s->length > max_seg_size) || - (is_span_boundary(out_entry, base_shift, - seg_boundary_size, outs, s))) { - /* Can't merge: create a new segment */ - segstart = s; - outcount++; - outs = sg_next(outs); - } else { - outs->dma_length += s->length; - } - } - - if (segstart == s) { - /* This is a new segment, fill entries */ - outs->dma_address = dma_addr; - outs->dma_length = slen; - out_entry = entry; - } - - /* Calculate next page pointer for contiguous check */ - dma_next = dma_addr + slen; - } - - err = iommu_batch_end(); - - if (unlikely(err < 0L)) - goto iommu_map_failed; - - spin_unlock_irqrestore(&iommu->lock, flags); - - if (outcount < incount) { - outs = sg_next(outs); - outs->dma_address = DMA_ERROR_CODE; - outs->dma_length = 0; - } - - return outcount; - -iommu_map_failed: - for_each_sg(sglist, s, nelems, i) { - if (s->dma_length != 0) { - unsigned long vaddr, npages; - - vaddr = s->dma_address & IO_PAGE_MASK; - npages = iommu_num_pages(s->dma_address, s->dma_length, - IO_PAGE_SIZE); - iommu_range_free(iommu, vaddr, npages); - /* XXX demap? XXX */ - s->dma_address = DMA_ERROR_CODE; - s->dma_length = 0; - } - if (s == outs) - break; - } - spin_unlock_irqrestore(&iommu->lock, flags); - - return 0; -} - -static void dma_4v_unmap_sg(struct device *dev, struct scatterlist *sglist, - int nelems, enum dma_data_direction direction) -{ - struct pci_pbm_info *pbm; - struct scatterlist *sg; - struct iommu *iommu; - unsigned long flags; - u32 devhandle; - - BUG_ON(direction == DMA_NONE); - - iommu = dev->archdata.iommu; - pbm = dev->archdata.host_controller; - devhandle = pbm->devhandle; - - spin_lock_irqsave(&iommu->lock, flags); - - sg = sglist; - while (nelems--) { - dma_addr_t dma_handle = sg->dma_address; - unsigned int len = sg->dma_length; - unsigned long npages, entry; - - if (!len) - break; - npages = iommu_num_pages(dma_handle, len, IO_PAGE_SIZE); - iommu_range_free(iommu, dma_handle, npages); - - entry = ((dma_handle - iommu->page_table_map_base) >> IO_PAGE_SHIFT); - while (npages) { - unsigned long num; - - num = pci_sun4v_iommu_demap(devhandle, HV_PCI_TSBID(0, entry), - npages); - entry += num; - npages -= num; - } - - sg = sg_next(sg); - } - - spin_unlock_irqrestore(&iommu->lock, flags); -} - -static void dma_4v_sync_single_for_cpu(struct device *dev, - dma_addr_t bus_addr, size_t sz, - enum dma_data_direction direction) -{ - /* Nothing to do... */ -} - -static void dma_4v_sync_sg_for_cpu(struct device *dev, - struct scatterlist *sglist, int nelems, - enum dma_data_direction direction) -{ - /* Nothing to do... */ -} - -static const struct dma_ops sun4v_dma_ops = { - .alloc_coherent = dma_4v_alloc_coherent, - .free_coherent = dma_4v_free_coherent, - .map_single = dma_4v_map_single, - .unmap_single = dma_4v_unmap_single, - .map_sg = dma_4v_map_sg, - .unmap_sg = dma_4v_unmap_sg, - .sync_single_for_cpu = dma_4v_sync_single_for_cpu, - .sync_sg_for_cpu = dma_4v_sync_sg_for_cpu, -}; - -static void __init pci_sun4v_scan_bus(struct pci_pbm_info *pbm, - struct device *parent) -{ - struct property *prop; - struct device_node *dp; - - dp = pbm->op->node; - prop = of_find_property(dp, "66mhz-capable", NULL); - pbm->is_66mhz_capable = (prop != NULL); - pbm->pci_bus = pci_scan_one_pbm(pbm, parent); - - /* XXX register error interrupt handlers XXX */ -} - -static unsigned long __init probe_existing_entries(struct pci_pbm_info *pbm, - struct iommu *iommu) -{ - struct iommu_arena *arena = &iommu->arena; - unsigned long i, cnt = 0; - u32 devhandle; - - devhandle = pbm->devhandle; - for (i = 0; i < arena->limit; i++) { - unsigned long ret, io_attrs, ra; - - ret = pci_sun4v_iommu_getmap(devhandle, - HV_PCI_TSBID(0, i), - &io_attrs, &ra); - if (ret == HV_EOK) { - if (page_in_phys_avail(ra)) { - pci_sun4v_iommu_demap(devhandle, - HV_PCI_TSBID(0, i), 1); - } else { - cnt++; - __set_bit(i, arena->map); - } - } - } - - return cnt; -} - -static int __init pci_sun4v_iommu_init(struct pci_pbm_info *pbm) -{ - static const u32 vdma_default[] = { 0x80000000, 0x80000000 }; - struct iommu *iommu = pbm->iommu; - unsigned long num_tsb_entries, sz, tsbsize; - u32 dma_mask, dma_offset; - const u32 *vdma; - - vdma = of_get_property(pbm->op->node, "virtual-dma", NULL); - if (!vdma) - vdma = vdma_default; - - if ((vdma[0] | vdma[1]) & ~IO_PAGE_MASK) { - printk(KERN_ERR PFX "Strange virtual-dma[%08x:%08x].\n", - vdma[0], vdma[1]); - return -EINVAL; - }; - - dma_mask = (roundup_pow_of_two(vdma[1]) - 1UL); - num_tsb_entries = vdma[1] / IO_PAGE_SIZE; - tsbsize = num_tsb_entries * sizeof(iopte_t); - - dma_offset = vdma[0]; - - /* Setup initial software IOMMU state. */ - spin_lock_init(&iommu->lock); - iommu->ctx_lowest_free = 1; - iommu->page_table_map_base = dma_offset; - iommu->dma_addr_mask = dma_mask; - - /* Allocate and initialize the free area map. */ - sz = (num_tsb_entries + 7) / 8; - sz = (sz + 7UL) & ~7UL; - iommu->arena.map = kzalloc(sz, GFP_KERNEL); - if (!iommu->arena.map) { - printk(KERN_ERR PFX "Error, kmalloc(arena.map) failed.\n"); - return -ENOMEM; - } - iommu->arena.limit = num_tsb_entries; - - sz = probe_existing_entries(pbm, iommu); - if (sz) - printk("%s: Imported %lu TSB entries from OBP\n", - pbm->name, sz); - - return 0; -} - -#ifdef CONFIG_PCI_MSI -struct pci_sun4v_msiq_entry { - u64 version_type; -#define MSIQ_VERSION_MASK 0xffffffff00000000UL -#define MSIQ_VERSION_SHIFT 32 -#define MSIQ_TYPE_MASK 0x00000000000000ffUL -#define MSIQ_TYPE_SHIFT 0 -#define MSIQ_TYPE_NONE 0x00 -#define MSIQ_TYPE_MSG 0x01 -#define MSIQ_TYPE_MSI32 0x02 -#define MSIQ_TYPE_MSI64 0x03 -#define MSIQ_TYPE_INTX 0x08 -#define MSIQ_TYPE_NONE2 0xff - - u64 intx_sysino; - u64 reserved1; - u64 stick; - u64 req_id; /* bus/device/func */ -#define MSIQ_REQID_BUS_MASK 0xff00UL -#define MSIQ_REQID_BUS_SHIFT 8 -#define MSIQ_REQID_DEVICE_MASK 0x00f8UL -#define MSIQ_REQID_DEVICE_SHIFT 3 -#define MSIQ_REQID_FUNC_MASK 0x0007UL -#define MSIQ_REQID_FUNC_SHIFT 0 - - u64 msi_address; - - /* The format of this value is message type dependent. - * For MSI bits 15:0 are the data from the MSI packet. - * For MSI-X bits 31:0 are the data from the MSI packet. - * For MSG, the message code and message routing code where: - * bits 39:32 is the bus/device/fn of the msg target-id - * bits 18:16 is the message routing code - * bits 7:0 is the message code - * For INTx the low order 2-bits are: - * 00 - INTA - * 01 - INTB - * 10 - INTC - * 11 - INTD - */ - u64 msi_data; - - u64 reserved2; -}; - -static int pci_sun4v_get_head(struct pci_pbm_info *pbm, unsigned long msiqid, - unsigned long *head) -{ - unsigned long err, limit; - - err = pci_sun4v_msiq_gethead(pbm->devhandle, msiqid, head); - if (unlikely(err)) - return -ENXIO; - - limit = pbm->msiq_ent_count * sizeof(struct pci_sun4v_msiq_entry); - if (unlikely(*head >= limit)) - return -EFBIG; - - return 0; -} - -static int pci_sun4v_dequeue_msi(struct pci_pbm_info *pbm, - unsigned long msiqid, unsigned long *head, - unsigned long *msi) -{ - struct pci_sun4v_msiq_entry *ep; - unsigned long err, type; - - /* Note: void pointer arithmetic, 'head' is a byte offset */ - ep = (pbm->msi_queues + ((msiqid - pbm->msiq_first) * - (pbm->msiq_ent_count * - sizeof(struct pci_sun4v_msiq_entry))) + - *head); - - if ((ep->version_type & MSIQ_TYPE_MASK) == 0) - return 0; - - type = (ep->version_type & MSIQ_TYPE_MASK) >> MSIQ_TYPE_SHIFT; - if (unlikely(type != MSIQ_TYPE_MSI32 && - type != MSIQ_TYPE_MSI64)) - return -EINVAL; - - *msi = ep->msi_data; - - err = pci_sun4v_msi_setstate(pbm->devhandle, - ep->msi_data /* msi_num */, - HV_MSISTATE_IDLE); - if (unlikely(err)) - return -ENXIO; - - /* Clear the entry. */ - ep->version_type &= ~MSIQ_TYPE_MASK; - - (*head) += sizeof(struct pci_sun4v_msiq_entry); - if (*head >= - (pbm->msiq_ent_count * sizeof(struct pci_sun4v_msiq_entry))) - *head = 0; - - return 1; -} - -static int pci_sun4v_set_head(struct pci_pbm_info *pbm, unsigned long msiqid, - unsigned long head) -{ - unsigned long err; - - err = pci_sun4v_msiq_sethead(pbm->devhandle, msiqid, head); - if (unlikely(err)) - return -EINVAL; - - return 0; -} - -static int pci_sun4v_msi_setup(struct pci_pbm_info *pbm, unsigned long msiqid, - unsigned long msi, int is_msi64) -{ - if (pci_sun4v_msi_setmsiq(pbm->devhandle, msi, msiqid, - (is_msi64 ? - HV_MSITYPE_MSI64 : HV_MSITYPE_MSI32))) - return -ENXIO; - if (pci_sun4v_msi_setstate(pbm->devhandle, msi, HV_MSISTATE_IDLE)) - return -ENXIO; - if (pci_sun4v_msi_setvalid(pbm->devhandle, msi, HV_MSIVALID_VALID)) - return -ENXIO; - return 0; -} - -static int pci_sun4v_msi_teardown(struct pci_pbm_info *pbm, unsigned long msi) -{ - unsigned long err, msiqid; - - err = pci_sun4v_msi_getmsiq(pbm->devhandle, msi, &msiqid); - if (err) - return -ENXIO; - - pci_sun4v_msi_setvalid(pbm->devhandle, msi, HV_MSIVALID_INVALID); - - return 0; -} - -static int pci_sun4v_msiq_alloc(struct pci_pbm_info *pbm) -{ - unsigned long q_size, alloc_size, pages, order; - int i; - - q_size = pbm->msiq_ent_count * sizeof(struct pci_sun4v_msiq_entry); - alloc_size = (pbm->msiq_num * q_size); - order = get_order(alloc_size); - pages = __get_free_pages(GFP_KERNEL | __GFP_COMP, order); - if (pages == 0UL) { - printk(KERN_ERR "MSI: Cannot allocate MSI queues (o=%lu).\n", - order); - return -ENOMEM; - } - memset((char *)pages, 0, PAGE_SIZE << order); - pbm->msi_queues = (void *) pages; - - for (i = 0; i < pbm->msiq_num; i++) { - unsigned long err, base = __pa(pages + (i * q_size)); - unsigned long ret1, ret2; - - err = pci_sun4v_msiq_conf(pbm->devhandle, - pbm->msiq_first + i, - base, pbm->msiq_ent_count); - if (err) { - printk(KERN_ERR "MSI: msiq register fails (err=%lu)\n", - err); - goto h_error; - } - - err = pci_sun4v_msiq_info(pbm->devhandle, - pbm->msiq_first + i, - &ret1, &ret2); - if (err) { - printk(KERN_ERR "MSI: Cannot read msiq (err=%lu)\n", - err); - goto h_error; - } - if (ret1 != base || ret2 != pbm->msiq_ent_count) { - printk(KERN_ERR "MSI: Bogus qconf " - "expected[%lx:%x] got[%lx:%lx]\n", - base, pbm->msiq_ent_count, - ret1, ret2); - goto h_error; - } - } - - return 0; - -h_error: - free_pages(pages, order); - return -EINVAL; -} - -static void pci_sun4v_msiq_free(struct pci_pbm_info *pbm) -{ - unsigned long q_size, alloc_size, pages, order; - int i; - - for (i = 0; i < pbm->msiq_num; i++) { - unsigned long msiqid = pbm->msiq_first + i; - - (void) pci_sun4v_msiq_conf(pbm->devhandle, msiqid, 0UL, 0); - } - - q_size = pbm->msiq_ent_count * sizeof(struct pci_sun4v_msiq_entry); - alloc_size = (pbm->msiq_num * q_size); - order = get_order(alloc_size); - - pages = (unsigned long) pbm->msi_queues; - - free_pages(pages, order); - - pbm->msi_queues = NULL; -} - -static int pci_sun4v_msiq_build_irq(struct pci_pbm_info *pbm, - unsigned long msiqid, - unsigned long devino) -{ - unsigned int virt_irq = sun4v_build_irq(pbm->devhandle, devino); - - if (!virt_irq) - return -ENOMEM; - - if (pci_sun4v_msiq_setstate(pbm->devhandle, msiqid, HV_MSIQSTATE_IDLE)) - return -EINVAL; - if (pci_sun4v_msiq_setvalid(pbm->devhandle, msiqid, HV_MSIQ_VALID)) - return -EINVAL; - - return virt_irq; -} - -static const struct sparc64_msiq_ops pci_sun4v_msiq_ops = { - .get_head = pci_sun4v_get_head, - .dequeue_msi = pci_sun4v_dequeue_msi, - .set_head = pci_sun4v_set_head, - .msi_setup = pci_sun4v_msi_setup, - .msi_teardown = pci_sun4v_msi_teardown, - .msiq_alloc = pci_sun4v_msiq_alloc, - .msiq_free = pci_sun4v_msiq_free, - .msiq_build_irq = pci_sun4v_msiq_build_irq, -}; - -static void pci_sun4v_msi_init(struct pci_pbm_info *pbm) -{ - sparc64_pbm_msi_init(pbm, &pci_sun4v_msiq_ops); -} -#else /* CONFIG_PCI_MSI */ -static void pci_sun4v_msi_init(struct pci_pbm_info *pbm) -{ -} -#endif /* !(CONFIG_PCI_MSI) */ - -static int __init pci_sun4v_pbm_init(struct pci_pbm_info *pbm, - struct of_device *op, u32 devhandle) -{ - struct device_node *dp = op->node; - int err; - - pbm->numa_node = of_node_to_nid(dp); - - pbm->pci_ops = &sun4v_pci_ops; - pbm->config_space_reg_bits = 12; - - pbm->index = pci_num_pbms++; - - pbm->op = op; - - pbm->devhandle = devhandle; - - pbm->name = dp->full_name; - - printk("%s: SUN4V PCI Bus Module\n", pbm->name); - printk("%s: On NUMA node %d\n", pbm->name, pbm->numa_node); - - pci_determine_mem_io_space(pbm); - - pci_get_pbm_props(pbm); - - err = pci_sun4v_iommu_init(pbm); - if (err) - return err; - - pci_sun4v_msi_init(pbm); - - pci_sun4v_scan_bus(pbm, &op->dev); - - pbm->next = pci_pbm_root; - pci_pbm_root = pbm; - - return 0; -} - -static int __devinit pci_sun4v_probe(struct of_device *op, - const struct of_device_id *match) -{ - const struct linux_prom64_registers *regs; - static int hvapi_negotiated = 0; - struct pci_pbm_info *pbm; - struct device_node *dp; - struct iommu *iommu; - u32 devhandle; - int i, err; - - dp = op->node; - - if (!hvapi_negotiated++) { - err = sun4v_hvapi_register(HV_GRP_PCI, - vpci_major, - &vpci_minor); - - if (err) { - printk(KERN_ERR PFX "Could not register hvapi, " - "err=%d\n", err); - return err; - } - printk(KERN_INFO PFX "Registered hvapi major[%lu] minor[%lu]\n", - vpci_major, vpci_minor); - - dma_ops = &sun4v_dma_ops; - } - - regs = of_get_property(dp, "reg", NULL); - err = -ENODEV; - if (!regs) { - printk(KERN_ERR PFX "Could not find config registers\n"); - goto out_err; - } - devhandle = (regs->phys_addr >> 32UL) & 0x0fffffff; - - err = -ENOMEM; - if (!iommu_batch_initialized) { - for_each_possible_cpu(i) { - unsigned long page = get_zeroed_page(GFP_KERNEL); - - if (!page) - goto out_err; - - per_cpu(iommu_batch, i).pglist = (u64 *) page; - } - iommu_batch_initialized = 1; - } - - pbm = kzalloc(sizeof(*pbm), GFP_KERNEL); - if (!pbm) { - printk(KERN_ERR PFX "Could not allocate pci_pbm_info\n"); - goto out_err; - } - - iommu = kzalloc(sizeof(struct iommu), GFP_KERNEL); - if (!iommu) { - printk(KERN_ERR PFX "Could not allocate pbm iommu\n"); - goto out_free_controller; - } - - pbm->iommu = iommu; - - err = pci_sun4v_pbm_init(pbm, op, devhandle); - if (err) - goto out_free_iommu; - - dev_set_drvdata(&op->dev, pbm); - - return 0; - -out_free_iommu: - kfree(pbm->iommu); - -out_free_controller: - kfree(pbm); - -out_err: - return err; -} - -static struct of_device_id __initdata pci_sun4v_match[] = { - { - .name = "pci", - .compatible = "SUNW,sun4v-pci", - }, - {}, -}; - -static struct of_platform_driver pci_sun4v_driver = { - .name = DRIVER_NAME, - .match_table = pci_sun4v_match, - .probe = pci_sun4v_probe, -}; - -static int __init pci_sun4v_init(void) -{ - return of_register_driver(&pci_sun4v_driver, &of_bus_type); -} - -subsys_initcall(pci_sun4v_init); diff --git a/arch/sparc64/kernel/pci_sun4v.h b/arch/sparc64/kernel/pci_sun4v.h deleted file mode 100644 index 8e9fc3a5b4f5..000000000000 --- a/arch/sparc64/kernel/pci_sun4v.h +++ /dev/null @@ -1,92 +0,0 @@ -/* pci_sun4v.h: SUN4V specific PCI controller support. - * - * Copyright (C) 2006 David S. Miller (davem@davemloft.net) - */ - -#ifndef _PCI_SUN4V_H -#define _PCI_SUN4V_H - -extern long pci_sun4v_iommu_map(unsigned long devhandle, - unsigned long tsbid, - unsigned long num_ttes, - unsigned long io_attributes, - unsigned long io_page_list_pa); -extern unsigned long pci_sun4v_iommu_demap(unsigned long devhandle, - unsigned long tsbid, - unsigned long num_ttes); -extern unsigned long pci_sun4v_iommu_getmap(unsigned long devhandle, - unsigned long tsbid, - unsigned long *io_attributes, - unsigned long *real_address); -extern unsigned long pci_sun4v_config_get(unsigned long devhandle, - unsigned long pci_device, - unsigned long config_offset, - unsigned long size); -extern int pci_sun4v_config_put(unsigned long devhandle, - unsigned long pci_device, - unsigned long config_offset, - unsigned long size, - unsigned long data); - -extern unsigned long pci_sun4v_msiq_conf(unsigned long devhandle, - unsigned long msiqid, - unsigned long msiq_paddr, - unsigned long num_entries); -extern unsigned long pci_sun4v_msiq_info(unsigned long devhandle, - unsigned long msiqid, - unsigned long *msiq_paddr, - unsigned long *num_entries); -extern unsigned long pci_sun4v_msiq_getvalid(unsigned long devhandle, - unsigned long msiqid, - unsigned long *valid); -extern unsigned long pci_sun4v_msiq_setvalid(unsigned long devhandle, - unsigned long msiqid, - unsigned long valid); -extern unsigned long pci_sun4v_msiq_getstate(unsigned long devhandle, - unsigned long msiqid, - unsigned long *state); -extern unsigned long pci_sun4v_msiq_setstate(unsigned long devhandle, - unsigned long msiqid, - unsigned long state); -extern unsigned long pci_sun4v_msiq_gethead(unsigned long devhandle, - unsigned long msiqid, - unsigned long *head); -extern unsigned long pci_sun4v_msiq_sethead(unsigned long devhandle, - unsigned long msiqid, - unsigned long head); -extern unsigned long pci_sun4v_msiq_gettail(unsigned long devhandle, - unsigned long msiqid, - unsigned long *head); -extern unsigned long pci_sun4v_msi_getvalid(unsigned long devhandle, - unsigned long msinum, - unsigned long *valid); -extern unsigned long pci_sun4v_msi_setvalid(unsigned long devhandle, - unsigned long msinum, - unsigned long valid); -extern unsigned long pci_sun4v_msi_getmsiq(unsigned long devhandle, - unsigned long msinum, - unsigned long *msiq); -extern unsigned long pci_sun4v_msi_setmsiq(unsigned long devhandle, - unsigned long msinum, - unsigned long msiq, - unsigned long msitype); -extern unsigned long pci_sun4v_msi_getstate(unsigned long devhandle, - unsigned long msinum, - unsigned long *state); -extern unsigned long pci_sun4v_msi_setstate(unsigned long devhandle, - unsigned long msinum, - unsigned long state); -extern unsigned long pci_sun4v_msg_getmsiq(unsigned long devhandle, - unsigned long msinum, - unsigned long *msiq); -extern unsigned long pci_sun4v_msg_setmsiq(unsigned long devhandle, - unsigned long msinum, - unsigned long msiq); -extern unsigned long pci_sun4v_msg_getvalid(unsigned long devhandle, - unsigned long msinum, - unsigned long *valid); -extern unsigned long pci_sun4v_msg_setvalid(unsigned long devhandle, - unsigned long msinum, - unsigned long valid); - -#endif /* !(_PCI_SUN4V_H) */ diff --git a/arch/sparc64/kernel/pci_sun4v_asm.S b/arch/sparc64/kernel/pci_sun4v_asm.S deleted file mode 100644 index e606d46c6815..000000000000 --- a/arch/sparc64/kernel/pci_sun4v_asm.S +++ /dev/null @@ -1,362 +0,0 @@ -/* pci_sun4v_asm: Hypervisor calls for PCI support. - * - * Copyright (C) 2006, 2008 David S. Miller <davem@davemloft.net> - */ - -#include <linux/linkage.h> -#include <asm/hypervisor.h> - - /* %o0: devhandle - * %o1: tsbid - * %o2: num ttes - * %o3: io_attributes - * %o4: io_page_list phys address - * - * returns %o0: -status if status was non-zero, else - * %o0: num pages mapped - */ -ENTRY(pci_sun4v_iommu_map) - mov %o5, %g1 - mov HV_FAST_PCI_IOMMU_MAP, %o5 - ta HV_FAST_TRAP - brnz,pn %o0, 1f - sub %g0, %o0, %o0 - mov %o1, %o0 -1: retl - nop -ENDPROC(pci_sun4v_iommu_map) - - /* %o0: devhandle - * %o1: tsbid - * %o2: num ttes - * - * returns %o0: num ttes demapped - */ -ENTRY(pci_sun4v_iommu_demap) - mov HV_FAST_PCI_IOMMU_DEMAP, %o5 - ta HV_FAST_TRAP - retl - mov %o1, %o0 -ENDPROC(pci_sun4v_iommu_demap) - - /* %o0: devhandle - * %o1: tsbid - * %o2: &io_attributes - * %o3: &real_address - * - * returns %o0: status - */ -ENTRY(pci_sun4v_iommu_getmap) - mov %o2, %o4 - mov HV_FAST_PCI_IOMMU_GETMAP, %o5 - ta HV_FAST_TRAP - stx %o1, [%o4] - stx %o2, [%o3] - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_iommu_getmap) - - /* %o0: devhandle - * %o1: pci_device - * %o2: pci_config_offset - * %o3: size - * - * returns %o0: data - * - * If there is an error, the data will be returned - * as all 1's. - */ -ENTRY(pci_sun4v_config_get) - mov HV_FAST_PCI_CONFIG_GET, %o5 - ta HV_FAST_TRAP - brnz,a,pn %o1, 1f - mov -1, %o2 -1: retl - mov %o2, %o0 -ENDPROC(pci_sun4v_config_get) - - /* %o0: devhandle - * %o1: pci_device - * %o2: pci_config_offset - * %o3: size - * %o4: data - * - * returns %o0: status - * - * status will be zero if the operation completed - * successfully, else -1 if not - */ -ENTRY(pci_sun4v_config_put) - mov HV_FAST_PCI_CONFIG_PUT, %o5 - ta HV_FAST_TRAP - brnz,a,pn %o1, 1f - mov -1, %o1 -1: retl - mov %o1, %o0 -ENDPROC(pci_sun4v_config_put) - - /* %o0: devhandle - * %o1: msiqid - * %o2: msiq phys address - * %o3: num entries - * - * returns %o0: status - * - * status will be zero if the operation completed - * successfully, else -1 if not - */ -ENTRY(pci_sun4v_msiq_conf) - mov HV_FAST_PCI_MSIQ_CONF, %o5 - ta HV_FAST_TRAP - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msiq_conf) - - /* %o0: devhandle - * %o1: msiqid - * %o2: &msiq_phys_addr - * %o3: &msiq_num_entries - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msiq_info) - mov %o2, %o4 - mov HV_FAST_PCI_MSIQ_INFO, %o5 - ta HV_FAST_TRAP - stx %o1, [%o4] - stx %o2, [%o3] - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msiq_info) - - /* %o0: devhandle - * %o1: msiqid - * %o2: &valid - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msiq_getvalid) - mov HV_FAST_PCI_MSIQ_GETVALID, %o5 - ta HV_FAST_TRAP - stx %o1, [%o2] - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msiq_getvalid) - - /* %o0: devhandle - * %o1: msiqid - * %o2: valid - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msiq_setvalid) - mov HV_FAST_PCI_MSIQ_SETVALID, %o5 - ta HV_FAST_TRAP - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msiq_setvalid) - - /* %o0: devhandle - * %o1: msiqid - * %o2: &state - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msiq_getstate) - mov HV_FAST_PCI_MSIQ_GETSTATE, %o5 - ta HV_FAST_TRAP - stx %o1, [%o2] - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msiq_getstate) - - /* %o0: devhandle - * %o1: msiqid - * %o2: state - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msiq_setstate) - mov HV_FAST_PCI_MSIQ_SETSTATE, %o5 - ta HV_FAST_TRAP - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msiq_setstate) - - /* %o0: devhandle - * %o1: msiqid - * %o2: &head - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msiq_gethead) - mov HV_FAST_PCI_MSIQ_GETHEAD, %o5 - ta HV_FAST_TRAP - stx %o1, [%o2] - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msiq_gethead) - - /* %o0: devhandle - * %o1: msiqid - * %o2: head - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msiq_sethead) - mov HV_FAST_PCI_MSIQ_SETHEAD, %o5 - ta HV_FAST_TRAP - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msiq_sethead) - - /* %o0: devhandle - * %o1: msiqid - * %o2: &tail - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msiq_gettail) - mov HV_FAST_PCI_MSIQ_GETTAIL, %o5 - ta HV_FAST_TRAP - stx %o1, [%o2] - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msiq_gettail) - - /* %o0: devhandle - * %o1: msinum - * %o2: &valid - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msi_getvalid) - mov HV_FAST_PCI_MSI_GETVALID, %o5 - ta HV_FAST_TRAP - stx %o1, [%o2] - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msi_getvalid) - - /* %o0: devhandle - * %o1: msinum - * %o2: valid - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msi_setvalid) - mov HV_FAST_PCI_MSI_SETVALID, %o5 - ta HV_FAST_TRAP - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msi_setvalid) - - /* %o0: devhandle - * %o1: msinum - * %o2: &msiq - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msi_getmsiq) - mov HV_FAST_PCI_MSI_GETMSIQ, %o5 - ta HV_FAST_TRAP - stx %o1, [%o2] - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msi_getmsiq) - - /* %o0: devhandle - * %o1: msinum - * %o2: msitype - * %o3: msiq - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msi_setmsiq) - mov HV_FAST_PCI_MSI_SETMSIQ, %o5 - ta HV_FAST_TRAP - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msi_setmsiq) - - /* %o0: devhandle - * %o1: msinum - * %o2: &state - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msi_getstate) - mov HV_FAST_PCI_MSI_GETSTATE, %o5 - ta HV_FAST_TRAP - stx %o1, [%o2] - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msi_getstate) - - /* %o0: devhandle - * %o1: msinum - * %o2: state - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msi_setstate) - mov HV_FAST_PCI_MSI_SETSTATE, %o5 - ta HV_FAST_TRAP - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msi_setstate) - - /* %o0: devhandle - * %o1: msinum - * %o2: &msiq - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msg_getmsiq) - mov HV_FAST_PCI_MSG_GETMSIQ, %o5 - ta HV_FAST_TRAP - stx %o1, [%o2] - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msg_getmsiq) - - /* %o0: devhandle - * %o1: msinum - * %o2: msiq - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msg_setmsiq) - mov HV_FAST_PCI_MSG_SETMSIQ, %o5 - ta HV_FAST_TRAP - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msg_setmsiq) - - /* %o0: devhandle - * %o1: msinum - * %o2: &valid - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msg_getvalid) - mov HV_FAST_PCI_MSG_GETVALID, %o5 - ta HV_FAST_TRAP - stx %o1, [%o2] - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msg_getvalid) - - /* %o0: devhandle - * %o1: msinum - * %o2: valid - * - * returns %o0: status - */ -ENTRY(pci_sun4v_msg_setvalid) - mov HV_FAST_PCI_MSG_SETVALID, %o5 - ta HV_FAST_TRAP - retl - mov %o0, %o0 -ENDPROC(pci_sun4v_msg_setvalid) - diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c deleted file mode 100644 index 076cad7f9757..000000000000 --- a/arch/sparc64/kernel/power.c +++ /dev/null @@ -1,75 +0,0 @@ -/* power.c: Power management driver. - * - * Copyright (C) 1999, 2007, 2008 David S. Miller (davem@davemloft.net) - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/reboot.h> -#include <linux/of_device.h> - -#include <asm/prom.h> -#include <asm/io.h> - -static void __iomem *power_reg; - -static irqreturn_t power_handler(int irq, void *dev_id) -{ - orderly_poweroff(true); - - /* FIXME: Check registers for status... */ - return IRQ_HANDLED; -} - -static int __init has_button_interrupt(unsigned int irq, struct device_node *dp) -{ - if (irq == 0xffffffff) - return 0; - if (!of_find_property(dp, "button", NULL)) - return 0; - - return 1; -} - -static int __devinit power_probe(struct of_device *op, const struct of_device_id *match) -{ - struct resource *res = &op->resource[0]; - unsigned int irq= op->irqs[0]; - - power_reg = of_ioremap(res, 0, 0x4, "power"); - - printk(KERN_INFO "%s: Control reg at %lx\n", - op->node->name, res->start); - - if (has_button_interrupt(irq, op->node)) { - if (request_irq(irq, - power_handler, 0, "power", NULL) < 0) - printk(KERN_ERR "power: Cannot setup IRQ handler.\n"); - } - - return 0; -} - -static struct of_device_id __initdata power_match[] = { - { - .name = "power", - }, - {}, -}; - -static struct of_platform_driver power_driver = { - .match_table = power_match, - .probe = power_probe, - .driver = { - .name = "power", - }, -}; - -static int __init power_init(void) -{ - return of_register_driver(&power_driver, &of_platform_bus_type); -} - -device_initcall(power_init); diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c deleted file mode 100644 index d5e2acef9877..000000000000 --- a/arch/sparc64/kernel/process.c +++ /dev/null @@ -1,812 +0,0 @@ -/* arch/sparc64/kernel/process.c - * - * Copyright (C) 1995, 1996, 2008 David S. Miller (davem@davemloft.net) - * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 1997, 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -/* - * This file handles the architecture-dependent parts of process handling.. - */ - -#include <stdarg.h> - -#include <linux/errno.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/fs.h> -#include <linux/smp.h> -#include <linux/stddef.h> -#include <linux/ptrace.h> -#include <linux/slab.h> -#include <linux/user.h> -#include <linux/delay.h> -#include <linux/compat.h> -#include <linux/tick.h> -#include <linux/init.h> -#include <linux/cpu.h> -#include <linux/elfcore.h> -#include <linux/sysrq.h> - -#include <asm/uaccess.h> -#include <asm/system.h> -#include <asm/page.h> -#include <asm/pgalloc.h> -#include <asm/pgtable.h> -#include <asm/processor.h> -#include <asm/pstate.h> -#include <asm/elf.h> -#include <asm/fpumacro.h> -#include <asm/head.h> -#include <asm/cpudata.h> -#include <asm/mmu_context.h> -#include <asm/unistd.h> -#include <asm/hypervisor.h> -#include <asm/syscalls.h> -#include <asm/irq_regs.h> -#include <asm/smp.h> - -#include "kstack.h" - -static void sparc64_yield(int cpu) -{ - if (tlb_type != hypervisor) - return; - - clear_thread_flag(TIF_POLLING_NRFLAG); - smp_mb__after_clear_bit(); - - while (!need_resched() && !cpu_is_offline(cpu)) { - unsigned long pstate; - - /* Disable interrupts. */ - __asm__ __volatile__( - "rdpr %%pstate, %0\n\t" - "andn %0, %1, %0\n\t" - "wrpr %0, %%g0, %%pstate" - : "=&r" (pstate) - : "i" (PSTATE_IE)); - - if (!need_resched() && !cpu_is_offline(cpu)) - sun4v_cpu_yield(); - - /* Re-enable interrupts. */ - __asm__ __volatile__( - "rdpr %%pstate, %0\n\t" - "or %0, %1, %0\n\t" - "wrpr %0, %%g0, %%pstate" - : "=&r" (pstate) - : "i" (PSTATE_IE)); - } - - set_thread_flag(TIF_POLLING_NRFLAG); -} - -/* The idle loop on sparc64. */ -void cpu_idle(void) -{ - int cpu = smp_processor_id(); - - set_thread_flag(TIF_POLLING_NRFLAG); - - while(1) { - tick_nohz_stop_sched_tick(1); - - while (!need_resched() && !cpu_is_offline(cpu)) - sparc64_yield(cpu); - - tick_nohz_restart_sched_tick(); - - preempt_enable_no_resched(); - -#ifdef CONFIG_HOTPLUG_CPU - if (cpu_is_offline(cpu)) - cpu_play_dead(); -#endif - - schedule(); - preempt_disable(); - } -} - -#ifdef CONFIG_COMPAT -static void show_regwindow32(struct pt_regs *regs) -{ - struct reg_window32 __user *rw; - struct reg_window32 r_w; - mm_segment_t old_fs; - - __asm__ __volatile__ ("flushw"); - rw = compat_ptr((unsigned)regs->u_regs[14]); - old_fs = get_fs(); - set_fs (USER_DS); - if (copy_from_user (&r_w, rw, sizeof(r_w))) { - set_fs (old_fs); - return; - } - - set_fs (old_fs); - printk("l0: %08x l1: %08x l2: %08x l3: %08x " - "l4: %08x l5: %08x l6: %08x l7: %08x\n", - r_w.locals[0], r_w.locals[1], r_w.locals[2], r_w.locals[3], - r_w.locals[4], r_w.locals[5], r_w.locals[6], r_w.locals[7]); - printk("i0: %08x i1: %08x i2: %08x i3: %08x " - "i4: %08x i5: %08x i6: %08x i7: %08x\n", - r_w.ins[0], r_w.ins[1], r_w.ins[2], r_w.ins[3], - r_w.ins[4], r_w.ins[5], r_w.ins[6], r_w.ins[7]); -} -#else -#define show_regwindow32(regs) do { } while (0) -#endif - -static void show_regwindow(struct pt_regs *regs) -{ - struct reg_window __user *rw; - struct reg_window *rwk; - struct reg_window r_w; - mm_segment_t old_fs; - - if ((regs->tstate & TSTATE_PRIV) || !(test_thread_flag(TIF_32BIT))) { - __asm__ __volatile__ ("flushw"); - rw = (struct reg_window __user *) - (regs->u_regs[14] + STACK_BIAS); - rwk = (struct reg_window *) - (regs->u_regs[14] + STACK_BIAS); - if (!(regs->tstate & TSTATE_PRIV)) { - old_fs = get_fs(); - set_fs (USER_DS); - if (copy_from_user (&r_w, rw, sizeof(r_w))) { - set_fs (old_fs); - return; - } - rwk = &r_w; - set_fs (old_fs); - } - } else { - show_regwindow32(regs); - return; - } - printk("l0: %016lx l1: %016lx l2: %016lx l3: %016lx\n", - rwk->locals[0], rwk->locals[1], rwk->locals[2], rwk->locals[3]); - printk("l4: %016lx l5: %016lx l6: %016lx l7: %016lx\n", - rwk->locals[4], rwk->locals[5], rwk->locals[6], rwk->locals[7]); - printk("i0: %016lx i1: %016lx i2: %016lx i3: %016lx\n", - rwk->ins[0], rwk->ins[1], rwk->ins[2], rwk->ins[3]); - printk("i4: %016lx i5: %016lx i6: %016lx i7: %016lx\n", - rwk->ins[4], rwk->ins[5], rwk->ins[6], rwk->ins[7]); - if (regs->tstate & TSTATE_PRIV) - printk("I7: <%pS>\n", (void *) rwk->ins[7]); -} - -void show_regs(struct pt_regs *regs) -{ - printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate, - regs->tpc, regs->tnpc, regs->y, print_tainted()); - printk("TPC: <%pS>\n", (void *) regs->tpc); - printk("g0: %016lx g1: %016lx g2: %016lx g3: %016lx\n", - regs->u_regs[0], regs->u_regs[1], regs->u_regs[2], - regs->u_regs[3]); - printk("g4: %016lx g5: %016lx g6: %016lx g7: %016lx\n", - regs->u_regs[4], regs->u_regs[5], regs->u_regs[6], - regs->u_regs[7]); - printk("o0: %016lx o1: %016lx o2: %016lx o3: %016lx\n", - regs->u_regs[8], regs->u_regs[9], regs->u_regs[10], - regs->u_regs[11]); - printk("o4: %016lx o5: %016lx sp: %016lx ret_pc: %016lx\n", - regs->u_regs[12], regs->u_regs[13], regs->u_regs[14], - regs->u_regs[15]); - printk("RPC: <%pS>\n", (void *) regs->u_regs[15]); - show_regwindow(regs); -} - -struct global_reg_snapshot global_reg_snapshot[NR_CPUS]; -static DEFINE_SPINLOCK(global_reg_snapshot_lock); - -static void __global_reg_self(struct thread_info *tp, struct pt_regs *regs, - int this_cpu) -{ - flushw_all(); - - global_reg_snapshot[this_cpu].tstate = regs->tstate; - global_reg_snapshot[this_cpu].tpc = regs->tpc; - global_reg_snapshot[this_cpu].tnpc = regs->tnpc; - global_reg_snapshot[this_cpu].o7 = regs->u_regs[UREG_I7]; - - if (regs->tstate & TSTATE_PRIV) { - struct reg_window *rw; - - rw = (struct reg_window *) - (regs->u_regs[UREG_FP] + STACK_BIAS); - if (kstack_valid(tp, (unsigned long) rw)) { - global_reg_snapshot[this_cpu].i7 = rw->ins[7]; - rw = (struct reg_window *) - (rw->ins[6] + STACK_BIAS); - if (kstack_valid(tp, (unsigned long) rw)) - global_reg_snapshot[this_cpu].rpc = rw->ins[7]; - } - } else { - global_reg_snapshot[this_cpu].i7 = 0; - global_reg_snapshot[this_cpu].rpc = 0; - } - global_reg_snapshot[this_cpu].thread = tp; -} - -/* In order to avoid hangs we do not try to synchronize with the - * global register dump client cpus. The last store they make is to - * the thread pointer, so do a short poll waiting for that to become - * non-NULL. - */ -static void __global_reg_poll(struct global_reg_snapshot *gp) -{ - int limit = 0; - - while (!gp->thread && ++limit < 100) { - barrier(); - udelay(1); - } -} - -void __trigger_all_cpu_backtrace(void) -{ - struct thread_info *tp = current_thread_info(); - struct pt_regs *regs = get_irq_regs(); - unsigned long flags; - int this_cpu, cpu; - - if (!regs) - regs = tp->kregs; - - spin_lock_irqsave(&global_reg_snapshot_lock, flags); - - memset(global_reg_snapshot, 0, sizeof(global_reg_snapshot)); - - this_cpu = raw_smp_processor_id(); - - __global_reg_self(tp, regs, this_cpu); - - smp_fetch_global_regs(); - - for_each_online_cpu(cpu) { - struct global_reg_snapshot *gp = &global_reg_snapshot[cpu]; - - __global_reg_poll(gp); - - tp = gp->thread; - printk("%c CPU[%3d]: TSTATE[%016lx] TPC[%016lx] TNPC[%016lx] TASK[%s:%d]\n", - (cpu == this_cpu ? '*' : ' '), cpu, - gp->tstate, gp->tpc, gp->tnpc, - ((tp && tp->task) ? tp->task->comm : "NULL"), - ((tp && tp->task) ? tp->task->pid : -1)); - - if (gp->tstate & TSTATE_PRIV) { - printk(" TPC[%pS] O7[%pS] I7[%pS] RPC[%pS]\n", - (void *) gp->tpc, - (void *) gp->o7, - (void *) gp->i7, - (void *) gp->rpc); - } else { - printk(" TPC[%lx] O7[%lx] I7[%lx] RPC[%lx]\n", - gp->tpc, gp->o7, gp->i7, gp->rpc); - } - } - - memset(global_reg_snapshot, 0, sizeof(global_reg_snapshot)); - - spin_unlock_irqrestore(&global_reg_snapshot_lock, flags); -} - -#ifdef CONFIG_MAGIC_SYSRQ - -static void sysrq_handle_globreg(int key, struct tty_struct *tty) -{ - __trigger_all_cpu_backtrace(); -} - -static struct sysrq_key_op sparc_globalreg_op = { - .handler = sysrq_handle_globreg, - .help_msg = "Globalregs", - .action_msg = "Show Global CPU Regs", -}; - -static int __init sparc_globreg_init(void) -{ - return register_sysrq_key('y', &sparc_globalreg_op); -} - -core_initcall(sparc_globreg_init); - -#endif - -unsigned long thread_saved_pc(struct task_struct *tsk) -{ - struct thread_info *ti = task_thread_info(tsk); - unsigned long ret = 0xdeadbeefUL; - - if (ti && ti->ksp) { - unsigned long *sp; - sp = (unsigned long *)(ti->ksp + STACK_BIAS); - if (((unsigned long)sp & (sizeof(long) - 1)) == 0UL && - sp[14]) { - unsigned long *fp; - fp = (unsigned long *)(sp[14] + STACK_BIAS); - if (((unsigned long)fp & (sizeof(long) - 1)) == 0UL) - ret = fp[15]; - } - } - return ret; -} - -/* Free current thread data structures etc.. */ -void exit_thread(void) -{ - struct thread_info *t = current_thread_info(); - - if (t->utraps) { - if (t->utraps[0] < 2) - kfree (t->utraps); - else - t->utraps[0]--; - } - - if (test_and_clear_thread_flag(TIF_PERFCTR)) { - t->user_cntd0 = t->user_cntd1 = NULL; - t->pcr_reg = 0; - write_pcr(0); - } -} - -void flush_thread(void) -{ - struct thread_info *t = current_thread_info(); - struct mm_struct *mm; - - if (test_ti_thread_flag(t, TIF_ABI_PENDING)) { - clear_ti_thread_flag(t, TIF_ABI_PENDING); - if (test_ti_thread_flag(t, TIF_32BIT)) - clear_ti_thread_flag(t, TIF_32BIT); - else - set_ti_thread_flag(t, TIF_32BIT); - } - - mm = t->task->mm; - if (mm) - tsb_context_switch(mm); - - set_thread_wsaved(0); - - /* Turn off performance counters if on. */ - if (test_and_clear_thread_flag(TIF_PERFCTR)) { - t->user_cntd0 = t->user_cntd1 = NULL; - t->pcr_reg = 0; - write_pcr(0); - } - - /* Clear FPU register state. */ - t->fpsaved[0] = 0; - - if (get_thread_current_ds() != ASI_AIUS) - set_fs(USER_DS); -} - -/* It's a bit more tricky when 64-bit tasks are involved... */ -static unsigned long clone_stackframe(unsigned long csp, unsigned long psp) -{ - unsigned long fp, distance, rval; - - if (!(test_thread_flag(TIF_32BIT))) { - csp += STACK_BIAS; - psp += STACK_BIAS; - __get_user(fp, &(((struct reg_window __user *)psp)->ins[6])); - fp += STACK_BIAS; - } else - __get_user(fp, &(((struct reg_window32 __user *)psp)->ins[6])); - - /* Now 8-byte align the stack as this is mandatory in the - * Sparc ABI due to how register windows work. This hides - * the restriction from thread libraries etc. -DaveM - */ - csp &= ~7UL; - - distance = fp - psp; - rval = (csp - distance); - if (copy_in_user((void __user *) rval, (void __user *) psp, distance)) - rval = 0; - else if (test_thread_flag(TIF_32BIT)) { - if (put_user(((u32)csp), - &(((struct reg_window32 __user *)rval)->ins[6]))) - rval = 0; - } else { - if (put_user(((u64)csp - STACK_BIAS), - &(((struct reg_window __user *)rval)->ins[6]))) - rval = 0; - else - rval = rval - STACK_BIAS; - } - - return rval; -} - -/* Standard stuff. */ -static inline void shift_window_buffer(int first_win, int last_win, - struct thread_info *t) -{ - int i; - - for (i = first_win; i < last_win; i++) { - t->rwbuf_stkptrs[i] = t->rwbuf_stkptrs[i+1]; - memcpy(&t->reg_window[i], &t->reg_window[i+1], - sizeof(struct reg_window)); - } -} - -void synchronize_user_stack(void) -{ - struct thread_info *t = current_thread_info(); - unsigned long window; - - flush_user_windows(); - if ((window = get_thread_wsaved()) != 0) { - int winsize = sizeof(struct reg_window); - int bias = 0; - - if (test_thread_flag(TIF_32BIT)) - winsize = sizeof(struct reg_window32); - else - bias = STACK_BIAS; - - window -= 1; - do { - unsigned long sp = (t->rwbuf_stkptrs[window] + bias); - struct reg_window *rwin = &t->reg_window[window]; - - if (!copy_to_user((char __user *)sp, rwin, winsize)) { - shift_window_buffer(window, get_thread_wsaved() - 1, t); - set_thread_wsaved(get_thread_wsaved() - 1); - } - } while (window--); - } -} - -static void stack_unaligned(unsigned long sp) -{ - siginfo_t info; - - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_ADRALN; - info.si_addr = (void __user *) sp; - info.si_trapno = 0; - force_sig_info(SIGBUS, &info, current); -} - -void fault_in_user_windows(void) -{ - struct thread_info *t = current_thread_info(); - unsigned long window; - int winsize = sizeof(struct reg_window); - int bias = 0; - - if (test_thread_flag(TIF_32BIT)) - winsize = sizeof(struct reg_window32); - else - bias = STACK_BIAS; - - flush_user_windows(); - window = get_thread_wsaved(); - - if (likely(window != 0)) { - window -= 1; - do { - unsigned long sp = (t->rwbuf_stkptrs[window] + bias); - struct reg_window *rwin = &t->reg_window[window]; - - if (unlikely(sp & 0x7UL)) - stack_unaligned(sp); - - if (unlikely(copy_to_user((char __user *)sp, - rwin, winsize))) - goto barf; - } while (window--); - } - set_thread_wsaved(0); - return; - -barf: - set_thread_wsaved(window + 1); - do_exit(SIGILL); -} - -asmlinkage long sparc_do_fork(unsigned long clone_flags, - unsigned long stack_start, - struct pt_regs *regs, - unsigned long stack_size) -{ - int __user *parent_tid_ptr, *child_tid_ptr; - unsigned long orig_i1 = regs->u_regs[UREG_I1]; - long ret; - -#ifdef CONFIG_COMPAT - if (test_thread_flag(TIF_32BIT)) { - parent_tid_ptr = compat_ptr(regs->u_regs[UREG_I2]); - child_tid_ptr = compat_ptr(regs->u_regs[UREG_I4]); - } else -#endif - { - parent_tid_ptr = (int __user *) regs->u_regs[UREG_I2]; - child_tid_ptr = (int __user *) regs->u_regs[UREG_I4]; - } - - ret = do_fork(clone_flags, stack_start, - regs, stack_size, - parent_tid_ptr, child_tid_ptr); - - /* If we get an error and potentially restart the system - * call, we're screwed because copy_thread() clobbered - * the parent's %o1. So detect that case and restore it - * here. - */ - if ((unsigned long)ret >= -ERESTART_RESTARTBLOCK) - regs->u_regs[UREG_I1] = orig_i1; - - return ret; -} - -/* Copy a Sparc thread. The fork() return value conventions - * under SunOS are nothing short of bletcherous: - * Parent --> %o0 == childs pid, %o1 == 0 - * Child --> %o0 == parents pid, %o1 == 1 - */ -int copy_thread(int nr, unsigned long clone_flags, unsigned long sp, - unsigned long unused, - struct task_struct *p, struct pt_regs *regs) -{ - struct thread_info *t = task_thread_info(p); - struct sparc_stackf *parent_sf; - unsigned long child_stack_sz; - char *child_trap_frame; - int kernel_thread; - - kernel_thread = (regs->tstate & TSTATE_PRIV) ? 1 : 0; - parent_sf = ((struct sparc_stackf *) regs) - 1; - - /* Calculate offset to stack_frame & pt_regs */ - child_stack_sz = ((STACKFRAME_SZ + TRACEREG_SZ) + - (kernel_thread ? STACKFRAME_SZ : 0)); - child_trap_frame = (task_stack_page(p) + - (THREAD_SIZE - child_stack_sz)); - memcpy(child_trap_frame, parent_sf, child_stack_sz); - - t->flags = (t->flags & ~((0xffUL << TI_FLAG_CWP_SHIFT) | - (0xffUL << TI_FLAG_CURRENT_DS_SHIFT))) | - (((regs->tstate + 1) & TSTATE_CWP) << TI_FLAG_CWP_SHIFT); - t->new_child = 1; - t->ksp = ((unsigned long) child_trap_frame) - STACK_BIAS; - t->kregs = (struct pt_regs *) (child_trap_frame + - sizeof(struct sparc_stackf)); - t->fpsaved[0] = 0; - - if (kernel_thread) { - struct sparc_stackf *child_sf = (struct sparc_stackf *) - (child_trap_frame + (STACKFRAME_SZ + TRACEREG_SZ)); - - /* Zero terminate the stack backtrace. */ - child_sf->fp = NULL; - t->kregs->u_regs[UREG_FP] = - ((unsigned long) child_sf) - STACK_BIAS; - - /* Special case, if we are spawning a kernel thread from - * a userspace task (usermode helper, NFS or similar), we - * must disable performance counters in the child because - * the address space and protection realm are changing. - */ - if (t->flags & _TIF_PERFCTR) { - t->user_cntd0 = t->user_cntd1 = NULL; - t->pcr_reg = 0; - t->flags &= ~_TIF_PERFCTR; - } - t->flags |= ((long)ASI_P << TI_FLAG_CURRENT_DS_SHIFT); - t->kregs->u_regs[UREG_G6] = (unsigned long) t; - t->kregs->u_regs[UREG_G4] = (unsigned long) t->task; - } else { - if (t->flags & _TIF_32BIT) { - sp &= 0x00000000ffffffffUL; - regs->u_regs[UREG_FP] &= 0x00000000ffffffffUL; - } - t->kregs->u_regs[UREG_FP] = sp; - t->flags |= ((long)ASI_AIUS << TI_FLAG_CURRENT_DS_SHIFT); - if (sp != regs->u_regs[UREG_FP]) { - unsigned long csp; - - csp = clone_stackframe(sp, regs->u_regs[UREG_FP]); - if (!csp) - return -EFAULT; - t->kregs->u_regs[UREG_FP] = csp; - } - if (t->utraps) - t->utraps[0]++; - } - - /* Set the return value for the child. */ - t->kregs->u_regs[UREG_I0] = current->pid; - t->kregs->u_regs[UREG_I1] = 1; - - /* Set the second return value for the parent. */ - regs->u_regs[UREG_I1] = 0; - - if (clone_flags & CLONE_SETTLS) - t->kregs->u_regs[UREG_G7] = regs->u_regs[UREG_I3]; - - return 0; -} - -/* - * This is the mechanism for creating a new kernel thread. - * - * NOTE! Only a kernel-only process(ie the swapper or direct descendants - * who haven't done an "execve()") should use this: it will work within - * a system call from a "real" process, but the process memory space will - * not be freed until both the parent and the child have exited. - */ -pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) -{ - long retval; - - /* If the parent runs before fn(arg) is called by the child, - * the input registers of this function can be clobbered. - * So we stash 'fn' and 'arg' into global registers which - * will not be modified by the parent. - */ - __asm__ __volatile__("mov %4, %%g2\n\t" /* Save FN into global */ - "mov %5, %%g3\n\t" /* Save ARG into global */ - "mov %1, %%g1\n\t" /* Clone syscall nr. */ - "mov %2, %%o0\n\t" /* Clone flags. */ - "mov 0, %%o1\n\t" /* usp arg == 0 */ - "t 0x6d\n\t" /* Linux/Sparc clone(). */ - "brz,a,pn %%o1, 1f\n\t" /* Parent, just return. */ - " mov %%o0, %0\n\t" - "jmpl %%g2, %%o7\n\t" /* Call the function. */ - " mov %%g3, %%o0\n\t" /* Set arg in delay. */ - "mov %3, %%g1\n\t" - "t 0x6d\n\t" /* Linux/Sparc exit(). */ - /* Notreached by child. */ - "1:" : - "=r" (retval) : - "i" (__NR_clone), "r" (flags | CLONE_VM | CLONE_UNTRACED), - "i" (__NR_exit), "r" (fn), "r" (arg) : - "g1", "g2", "g3", "o0", "o1", "memory", "cc"); - return retval; -} - -typedef struct { - union { - unsigned int pr_regs[32]; - unsigned long pr_dregs[16]; - } pr_fr; - unsigned int __unused; - unsigned int pr_fsr; - unsigned char pr_qcnt; - unsigned char pr_q_entrysize; - unsigned char pr_en; - unsigned int pr_q[64]; -} elf_fpregset_t32; - -/* - * fill in the fpu structure for a core dump. - */ -int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs) -{ - unsigned long *kfpregs = current_thread_info()->fpregs; - unsigned long fprs = current_thread_info()->fpsaved[0]; - - if (test_thread_flag(TIF_32BIT)) { - elf_fpregset_t32 *fpregs32 = (elf_fpregset_t32 *)fpregs; - - if (fprs & FPRS_DL) - memcpy(&fpregs32->pr_fr.pr_regs[0], kfpregs, - sizeof(unsigned int) * 32); - else - memset(&fpregs32->pr_fr.pr_regs[0], 0, - sizeof(unsigned int) * 32); - fpregs32->pr_qcnt = 0; - fpregs32->pr_q_entrysize = 8; - memset(&fpregs32->pr_q[0], 0, - (sizeof(unsigned int) * 64)); - if (fprs & FPRS_FEF) { - fpregs32->pr_fsr = (unsigned int) current_thread_info()->xfsr[0]; - fpregs32->pr_en = 1; - } else { - fpregs32->pr_fsr = 0; - fpregs32->pr_en = 0; - } - } else { - if(fprs & FPRS_DL) - memcpy(&fpregs->pr_regs[0], kfpregs, - sizeof(unsigned int) * 32); - else - memset(&fpregs->pr_regs[0], 0, - sizeof(unsigned int) * 32); - if(fprs & FPRS_DU) - memcpy(&fpregs->pr_regs[16], kfpregs+16, - sizeof(unsigned int) * 32); - else - memset(&fpregs->pr_regs[16], 0, - sizeof(unsigned int) * 32); - if(fprs & FPRS_FEF) { - fpregs->pr_fsr = current_thread_info()->xfsr[0]; - fpregs->pr_gsr = current_thread_info()->gsr[0]; - } else { - fpregs->pr_fsr = fpregs->pr_gsr = 0; - } - fpregs->pr_fprs = fprs; - } - return 1; -} - -/* - * sparc_execve() executes a new program after the asm stub has set - * things up for us. This should basically do what I want it to. - */ -asmlinkage int sparc_execve(struct pt_regs *regs) -{ - int error, base = 0; - char *filename; - - /* User register window flush is done by entry.S */ - - /* Check for indirect call. */ - if (regs->u_regs[UREG_G1] == 0) - base = 1; - - filename = getname((char __user *)regs->u_regs[base + UREG_I0]); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - goto out; - error = do_execve(filename, - (char __user * __user *) - regs->u_regs[base + UREG_I1], - (char __user * __user *) - regs->u_regs[base + UREG_I2], regs); - putname(filename); - if (!error) { - fprs_write(0); - current_thread_info()->xfsr[0] = 0; - current_thread_info()->fpsaved[0] = 0; - regs->tstate &= ~TSTATE_PEF; - } -out: - return error; -} - -unsigned long get_wchan(struct task_struct *task) -{ - unsigned long pc, fp, bias = 0; - struct thread_info *tp; - struct reg_window *rw; - unsigned long ret = 0; - int count = 0; - - if (!task || task == current || - task->state == TASK_RUNNING) - goto out; - - tp = task_thread_info(task); - bias = STACK_BIAS; - fp = task_thread_info(task)->ksp + bias; - - do { - if (!kstack_valid(tp, fp)) - break; - rw = (struct reg_window *) fp; - pc = rw->ins[7]; - if (!in_sched_functions(pc)) { - ret = pc; - goto out; - } - fp = rw->ins[6] + bias; - } while (++count < 16); - -out: - return ret; -} diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c deleted file mode 100644 index dbba82f9b142..000000000000 --- a/arch/sparc64/kernel/prom.c +++ /dev/null @@ -1,1684 +0,0 @@ -/* - * Procedures for creating, accessing and interpreting the device tree. - * - * Paul Mackerras August 1996. - * Copyright (C) 1996-2005 Paul Mackerras. - * - * Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner. - * {engebret|bergner}@us.ibm.com - * - * Adapted for sparc64 by David S. Miller davem@davemloft.net - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/module.h> -#include <linux/lmb.h> -#include <linux/of_device.h> - -#include <asm/prom.h> -#include <asm/oplib.h> -#include <asm/irq.h> -#include <asm/asi.h> -#include <asm/upa.h> -#include <asm/smp.h> - -extern struct device_node *allnodes; /* temporary while merging */ - -extern rwlock_t devtree_lock; /* temporary while merging */ - -struct device_node *of_find_node_by_phandle(phandle handle) -{ - struct device_node *np; - - for (np = allnodes; np; np = np->allnext) - if (np->node == handle) - break; - - return np; -} -EXPORT_SYMBOL(of_find_node_by_phandle); - -int of_getintprop_default(struct device_node *np, const char *name, int def) -{ - struct property *prop; - int len; - - prop = of_find_property(np, name, &len); - if (!prop || len != 4) - return def; - - return *(int *) prop->value; -} -EXPORT_SYMBOL(of_getintprop_default); - -DEFINE_MUTEX(of_set_property_mutex); -EXPORT_SYMBOL(of_set_property_mutex); - -int of_set_property(struct device_node *dp, const char *name, void *val, int len) -{ - struct property **prevp; - void *new_val; - int err; - - new_val = kmalloc(len, GFP_KERNEL); - if (!new_val) - return -ENOMEM; - - memcpy(new_val, val, len); - - err = -ENODEV; - - write_lock(&devtree_lock); - prevp = &dp->properties; - while (*prevp) { - struct property *prop = *prevp; - - if (!strcasecmp(prop->name, name)) { - void *old_val = prop->value; - int ret; - - mutex_lock(&of_set_property_mutex); - ret = prom_setprop(dp->node, name, val, len); - mutex_unlock(&of_set_property_mutex); - - err = -EINVAL; - if (ret >= 0) { - prop->value = new_val; - prop->length = len; - - if (OF_IS_DYNAMIC(prop)) - kfree(old_val); - - OF_MARK_DYNAMIC(prop); - - err = 0; - } - break; - } - prevp = &(*prevp)->next; - } - write_unlock(&devtree_lock); - - /* XXX Upate procfs if necessary... */ - - return err; -} -EXPORT_SYMBOL(of_set_property); - -int of_find_in_proplist(const char *list, const char *match, int len) -{ - while (len > 0) { - int l; - - if (!strcmp(list, match)) - return 1; - l = strlen(list) + 1; - list += l; - len -= l; - } - return 0; -} -EXPORT_SYMBOL(of_find_in_proplist); - -static unsigned int prom_early_allocated __initdata; - -static void * __init prom_early_alloc(unsigned long size) -{ - unsigned long paddr = lmb_alloc(size, SMP_CACHE_BYTES); - void *ret; - - if (!paddr) { - prom_printf("prom_early_alloc(%lu) failed\n"); - prom_halt(); - } - - ret = __va(paddr); - memset(ret, 0, size); - prom_early_allocated += size; - - return ret; -} - -#ifdef CONFIG_PCI -/* PSYCHO interrupt mapping support. */ -#define PSYCHO_IMAP_A_SLOT0 0x0c00UL -#define PSYCHO_IMAP_B_SLOT0 0x0c20UL -static unsigned long psycho_pcislot_imap_offset(unsigned long ino) -{ - unsigned int bus = (ino & 0x10) >> 4; - unsigned int slot = (ino & 0x0c) >> 2; - - if (bus == 0) - return PSYCHO_IMAP_A_SLOT0 + (slot * 8); - else - return PSYCHO_IMAP_B_SLOT0 + (slot * 8); -} - -#define PSYCHO_OBIO_IMAP_BASE 0x1000UL - -#define PSYCHO_ONBOARD_IRQ_BASE 0x20 -#define psycho_onboard_imap_offset(__ino) \ - (PSYCHO_OBIO_IMAP_BASE + (((__ino) & 0x1f) << 3)) - -#define PSYCHO_ICLR_A_SLOT0 0x1400UL -#define PSYCHO_ICLR_SCSI 0x1800UL - -#define psycho_iclr_offset(ino) \ - ((ino & 0x20) ? (PSYCHO_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \ - (PSYCHO_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3))) - -static unsigned int psycho_irq_build(struct device_node *dp, - unsigned int ino, - void *_data) -{ - unsigned long controller_regs = (unsigned long) _data; - unsigned long imap, iclr; - unsigned long imap_off, iclr_off; - int inofixup = 0; - - ino &= 0x3f; - if (ino < PSYCHO_ONBOARD_IRQ_BASE) { - /* PCI slot */ - imap_off = psycho_pcislot_imap_offset(ino); - } else { - /* Onboard device */ - imap_off = psycho_onboard_imap_offset(ino); - } - - /* Now build the IRQ bucket. */ - imap = controller_regs + imap_off; - - iclr_off = psycho_iclr_offset(ino); - iclr = controller_regs + iclr_off; - - if ((ino & 0x20) == 0) - inofixup = ino & 0x03; - - return build_irq(inofixup, iclr, imap); -} - -static void __init psycho_irq_trans_init(struct device_node *dp) -{ - const struct linux_prom64_registers *regs; - - dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller)); - dp->irq_trans->irq_build = psycho_irq_build; - - regs = of_get_property(dp, "reg", NULL); - dp->irq_trans->data = (void *) regs[2].phys_addr; -} - -#define sabre_read(__reg) \ -({ u64 __ret; \ - __asm__ __volatile__("ldxa [%1] %2, %0" \ - : "=r" (__ret) \ - : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \ - : "memory"); \ - __ret; \ -}) - -struct sabre_irq_data { - unsigned long controller_regs; - unsigned int pci_first_busno; -}; -#define SABRE_CONFIGSPACE 0x001000000UL -#define SABRE_WRSYNC 0x1c20UL - -#define SABRE_CONFIG_BASE(CONFIG_SPACE) \ - (CONFIG_SPACE | (1UL << 24)) -#define SABRE_CONFIG_ENCODE(BUS, DEVFN, REG) \ - (((unsigned long)(BUS) << 16) | \ - ((unsigned long)(DEVFN) << 8) | \ - ((unsigned long)(REG))) - -/* When a device lives behind a bridge deeper in the PCI bus topology - * than APB, a special sequence must run to make sure all pending DMA - * transfers at the time of IRQ delivery are visible in the coherency - * domain by the cpu. This sequence is to perform a read on the far - * side of the non-APB bridge, then perform a read of Sabre's DMA - * write-sync register. - */ -static void sabre_wsync_handler(unsigned int ino, void *_arg1, void *_arg2) -{ - unsigned int phys_hi = (unsigned int) (unsigned long) _arg1; - struct sabre_irq_data *irq_data = _arg2; - unsigned long controller_regs = irq_data->controller_regs; - unsigned long sync_reg = controller_regs + SABRE_WRSYNC; - unsigned long config_space = controller_regs + SABRE_CONFIGSPACE; - unsigned int bus, devfn; - u16 _unused; - - config_space = SABRE_CONFIG_BASE(config_space); - - bus = (phys_hi >> 16) & 0xff; - devfn = (phys_hi >> 8) & 0xff; - - config_space |= SABRE_CONFIG_ENCODE(bus, devfn, 0x00); - - __asm__ __volatile__("membar #Sync\n\t" - "lduha [%1] %2, %0\n\t" - "membar #Sync" - : "=r" (_unused) - : "r" ((u16 *) config_space), - "i" (ASI_PHYS_BYPASS_EC_E_L) - : "memory"); - - sabre_read(sync_reg); -} - -#define SABRE_IMAP_A_SLOT0 0x0c00UL -#define SABRE_IMAP_B_SLOT0 0x0c20UL -#define SABRE_ICLR_A_SLOT0 0x1400UL -#define SABRE_ICLR_B_SLOT0 0x1480UL -#define SABRE_ICLR_SCSI 0x1800UL -#define SABRE_ICLR_ETH 0x1808UL -#define SABRE_ICLR_BPP 0x1810UL -#define SABRE_ICLR_AU_REC 0x1818UL -#define SABRE_ICLR_AU_PLAY 0x1820UL -#define SABRE_ICLR_PFAIL 0x1828UL -#define SABRE_ICLR_KMS 0x1830UL -#define SABRE_ICLR_FLPY 0x1838UL -#define SABRE_ICLR_SHW 0x1840UL -#define SABRE_ICLR_KBD 0x1848UL -#define SABRE_ICLR_MS 0x1850UL -#define SABRE_ICLR_SER 0x1858UL -#define SABRE_ICLR_UE 0x1870UL -#define SABRE_ICLR_CE 0x1878UL -#define SABRE_ICLR_PCIERR 0x1880UL - -static unsigned long sabre_pcislot_imap_offset(unsigned long ino) -{ - unsigned int bus = (ino & 0x10) >> 4; - unsigned int slot = (ino & 0x0c) >> 2; - - if (bus == 0) - return SABRE_IMAP_A_SLOT0 + (slot * 8); - else - return SABRE_IMAP_B_SLOT0 + (slot * 8); -} - -#define SABRE_OBIO_IMAP_BASE 0x1000UL -#define SABRE_ONBOARD_IRQ_BASE 0x20 -#define sabre_onboard_imap_offset(__ino) \ - (SABRE_OBIO_IMAP_BASE + (((__ino) & 0x1f) << 3)) - -#define sabre_iclr_offset(ino) \ - ((ino & 0x20) ? (SABRE_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \ - (SABRE_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3))) - -static int sabre_device_needs_wsync(struct device_node *dp) -{ - struct device_node *parent = dp->parent; - const char *parent_model, *parent_compat; - - /* This traversal up towards the root is meant to - * handle two cases: - * - * 1) non-PCI bus sitting under PCI, such as 'ebus' - * 2) the PCI controller interrupts themselves, which - * will use the sabre_irq_build but do not need - * the DMA synchronization handling - */ - while (parent) { - if (!strcmp(parent->type, "pci")) - break; - parent = parent->parent; - } - - if (!parent) - return 0; - - parent_model = of_get_property(parent, - "model", NULL); - if (parent_model && - (!strcmp(parent_model, "SUNW,sabre") || - !strcmp(parent_model, "SUNW,simba"))) - return 0; - - parent_compat = of_get_property(parent, - "compatible", NULL); - if (parent_compat && - (!strcmp(parent_compat, "pci108e,a000") || - !strcmp(parent_compat, "pci108e,a001"))) - return 0; - - return 1; -} - -static unsigned int sabre_irq_build(struct device_node *dp, - unsigned int ino, - void *_data) -{ - struct sabre_irq_data *irq_data = _data; - unsigned long controller_regs = irq_data->controller_regs; - const struct linux_prom_pci_registers *regs; - unsigned long imap, iclr; - unsigned long imap_off, iclr_off; - int inofixup = 0; - int virt_irq; - - ino &= 0x3f; - if (ino < SABRE_ONBOARD_IRQ_BASE) { - /* PCI slot */ - imap_off = sabre_pcislot_imap_offset(ino); - } else { - /* onboard device */ - imap_off = sabre_onboard_imap_offset(ino); - } - - /* Now build the IRQ bucket. */ - imap = controller_regs + imap_off; - - iclr_off = sabre_iclr_offset(ino); - iclr = controller_regs + iclr_off; - - if ((ino & 0x20) == 0) - inofixup = ino & 0x03; - - virt_irq = build_irq(inofixup, iclr, imap); - - /* If the parent device is a PCI<->PCI bridge other than - * APB, we have to install a pre-handler to ensure that - * all pending DMA is drained before the interrupt handler - * is run. - */ - regs = of_get_property(dp, "reg", NULL); - if (regs && sabre_device_needs_wsync(dp)) { - irq_install_pre_handler(virt_irq, - sabre_wsync_handler, - (void *) (long) regs->phys_hi, - (void *) irq_data); - } - - return virt_irq; -} - -static void __init sabre_irq_trans_init(struct device_node *dp) -{ - const struct linux_prom64_registers *regs; - struct sabre_irq_data *irq_data; - const u32 *busrange; - - dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller)); - dp->irq_trans->irq_build = sabre_irq_build; - - irq_data = prom_early_alloc(sizeof(struct sabre_irq_data)); - - regs = of_get_property(dp, "reg", NULL); - irq_data->controller_regs = regs[0].phys_addr; - - busrange = of_get_property(dp, "bus-range", NULL); - irq_data->pci_first_busno = busrange[0]; - - dp->irq_trans->data = irq_data; -} - -/* SCHIZO interrupt mapping support. Unlike Psycho, for this controller the - * imap/iclr registers are per-PBM. - */ -#define SCHIZO_IMAP_BASE 0x1000UL -#define SCHIZO_ICLR_BASE 0x1400UL - -static unsigned long schizo_imap_offset(unsigned long ino) -{ - return SCHIZO_IMAP_BASE + (ino * 8UL); -} - -static unsigned long schizo_iclr_offset(unsigned long ino) -{ - return SCHIZO_ICLR_BASE + (ino * 8UL); -} - -static unsigned long schizo_ino_to_iclr(unsigned long pbm_regs, - unsigned int ino) -{ - - return pbm_regs + schizo_iclr_offset(ino); -} - -static unsigned long schizo_ino_to_imap(unsigned long pbm_regs, - unsigned int ino) -{ - return pbm_regs + schizo_imap_offset(ino); -} - -#define schizo_read(__reg) \ -({ u64 __ret; \ - __asm__ __volatile__("ldxa [%1] %2, %0" \ - : "=r" (__ret) \ - : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \ - : "memory"); \ - __ret; \ -}) -#define schizo_write(__reg, __val) \ - __asm__ __volatile__("stxa %0, [%1] %2" \ - : /* no outputs */ \ - : "r" (__val), "r" (__reg), \ - "i" (ASI_PHYS_BYPASS_EC_E) \ - : "memory") - -static void tomatillo_wsync_handler(unsigned int ino, void *_arg1, void *_arg2) -{ - unsigned long sync_reg = (unsigned long) _arg2; - u64 mask = 1UL << (ino & IMAP_INO); - u64 val; - int limit; - - schizo_write(sync_reg, mask); - - limit = 100000; - val = 0; - while (--limit) { - val = schizo_read(sync_reg); - if (!(val & mask)) - break; - } - if (limit <= 0) { - printk("tomatillo_wsync_handler: DMA won't sync [%lx:%lx]\n", - val, mask); - } - - if (_arg1) { - static unsigned char cacheline[64] - __attribute__ ((aligned (64))); - - __asm__ __volatile__("rd %%fprs, %0\n\t" - "or %0, %4, %1\n\t" - "wr %1, 0x0, %%fprs\n\t" - "stda %%f0, [%5] %6\n\t" - "wr %0, 0x0, %%fprs\n\t" - "membar #Sync" - : "=&r" (mask), "=&r" (val) - : "0" (mask), "1" (val), - "i" (FPRS_FEF), "r" (&cacheline[0]), - "i" (ASI_BLK_COMMIT_P)); - } -} - -struct schizo_irq_data { - unsigned long pbm_regs; - unsigned long sync_reg; - u32 portid; - int chip_version; -}; - -static unsigned int schizo_irq_build(struct device_node *dp, - unsigned int ino, - void *_data) -{ - struct schizo_irq_data *irq_data = _data; - unsigned long pbm_regs = irq_data->pbm_regs; - unsigned long imap, iclr; - int ign_fixup; - int virt_irq; - int is_tomatillo; - - ino &= 0x3f; - - /* Now build the IRQ bucket. */ - imap = schizo_ino_to_imap(pbm_regs, ino); - iclr = schizo_ino_to_iclr(pbm_regs, ino); - - /* On Schizo, no inofixup occurs. This is because each - * INO has it's own IMAP register. On Psycho and Sabre - * there is only one IMAP register for each PCI slot even - * though four different INOs can be generated by each - * PCI slot. - * - * But, for JBUS variants (essentially, Tomatillo), we have - * to fixup the lowest bit of the interrupt group number. - */ - ign_fixup = 0; - - is_tomatillo = (irq_data->sync_reg != 0UL); - - if (is_tomatillo) { - if (irq_data->portid & 1) - ign_fixup = (1 << 6); - } - - virt_irq = build_irq(ign_fixup, iclr, imap); - - if (is_tomatillo) { - irq_install_pre_handler(virt_irq, - tomatillo_wsync_handler, - ((irq_data->chip_version <= 4) ? - (void *) 1 : (void *) 0), - (void *) irq_data->sync_reg); - } - - return virt_irq; -} - -static void __init __schizo_irq_trans_init(struct device_node *dp, - int is_tomatillo) -{ - const struct linux_prom64_registers *regs; - struct schizo_irq_data *irq_data; - - dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller)); - dp->irq_trans->irq_build = schizo_irq_build; - - irq_data = prom_early_alloc(sizeof(struct schizo_irq_data)); - - regs = of_get_property(dp, "reg", NULL); - dp->irq_trans->data = irq_data; - - irq_data->pbm_regs = regs[0].phys_addr; - if (is_tomatillo) - irq_data->sync_reg = regs[3].phys_addr + 0x1a18UL; - else - irq_data->sync_reg = 0UL; - irq_data->portid = of_getintprop_default(dp, "portid", 0); - irq_data->chip_version = of_getintprop_default(dp, "version#", 0); -} - -static void __init schizo_irq_trans_init(struct device_node *dp) -{ - __schizo_irq_trans_init(dp, 0); -} - -static void __init tomatillo_irq_trans_init(struct device_node *dp) -{ - __schizo_irq_trans_init(dp, 1); -} - -static unsigned int pci_sun4v_irq_build(struct device_node *dp, - unsigned int devino, - void *_data) -{ - u32 devhandle = (u32) (unsigned long) _data; - - return sun4v_build_irq(devhandle, devino); -} - -static void __init pci_sun4v_irq_trans_init(struct device_node *dp) -{ - const struct linux_prom64_registers *regs; - - dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller)); - dp->irq_trans->irq_build = pci_sun4v_irq_build; - - regs = of_get_property(dp, "reg", NULL); - dp->irq_trans->data = (void *) (unsigned long) - ((regs->phys_addr >> 32UL) & 0x0fffffff); -} - -struct fire_irq_data { - unsigned long pbm_regs; - u32 portid; -}; - -#define FIRE_IMAP_BASE 0x001000 -#define FIRE_ICLR_BASE 0x001400 - -static unsigned long fire_imap_offset(unsigned long ino) -{ - return FIRE_IMAP_BASE + (ino * 8UL); -} - -static unsigned long fire_iclr_offset(unsigned long ino) -{ - return FIRE_ICLR_BASE + (ino * 8UL); -} - -static unsigned long fire_ino_to_iclr(unsigned long pbm_regs, - unsigned int ino) -{ - return pbm_regs + fire_iclr_offset(ino); -} - -static unsigned long fire_ino_to_imap(unsigned long pbm_regs, - unsigned int ino) -{ - return pbm_regs + fire_imap_offset(ino); -} - -static unsigned int fire_irq_build(struct device_node *dp, - unsigned int ino, - void *_data) -{ - struct fire_irq_data *irq_data = _data; - unsigned long pbm_regs = irq_data->pbm_regs; - unsigned long imap, iclr; - unsigned long int_ctrlr; - - ino &= 0x3f; - - /* Now build the IRQ bucket. */ - imap = fire_ino_to_imap(pbm_regs, ino); - iclr = fire_ino_to_iclr(pbm_regs, ino); - - /* Set the interrupt controller number. */ - int_ctrlr = 1 << 6; - upa_writeq(int_ctrlr, imap); - - /* The interrupt map registers do not have an INO field - * like other chips do. They return zero in the INO - * field, and the interrupt controller number is controlled - * in bits 6 to 9. So in order for build_irq() to get - * the INO right we pass it in as part of the fixup - * which will get added to the map register zero value - * read by build_irq(). - */ - ino |= (irq_data->portid << 6); - ino -= int_ctrlr; - return build_irq(ino, iclr, imap); -} - -static void __init fire_irq_trans_init(struct device_node *dp) -{ - const struct linux_prom64_registers *regs; - struct fire_irq_data *irq_data; - - dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller)); - dp->irq_trans->irq_build = fire_irq_build; - - irq_data = prom_early_alloc(sizeof(struct fire_irq_data)); - - regs = of_get_property(dp, "reg", NULL); - dp->irq_trans->data = irq_data; - - irq_data->pbm_regs = regs[0].phys_addr; - irq_data->portid = of_getintprop_default(dp, "portid", 0); -} -#endif /* CONFIG_PCI */ - -#ifdef CONFIG_SBUS -/* INO number to IMAP register offset for SYSIO external IRQ's. - * This should conform to both Sunfire/Wildfire server and Fusion - * desktop designs. - */ -#define SYSIO_IMAP_SLOT0 0x2c00UL -#define SYSIO_IMAP_SLOT1 0x2c08UL -#define SYSIO_IMAP_SLOT2 0x2c10UL -#define SYSIO_IMAP_SLOT3 0x2c18UL -#define SYSIO_IMAP_SCSI 0x3000UL -#define SYSIO_IMAP_ETH 0x3008UL -#define SYSIO_IMAP_BPP 0x3010UL -#define SYSIO_IMAP_AUDIO 0x3018UL -#define SYSIO_IMAP_PFAIL 0x3020UL -#define SYSIO_IMAP_KMS 0x3028UL -#define SYSIO_IMAP_FLPY 0x3030UL -#define SYSIO_IMAP_SHW 0x3038UL -#define SYSIO_IMAP_KBD 0x3040UL -#define SYSIO_IMAP_MS 0x3048UL -#define SYSIO_IMAP_SER 0x3050UL -#define SYSIO_IMAP_TIM0 0x3060UL -#define SYSIO_IMAP_TIM1 0x3068UL -#define SYSIO_IMAP_UE 0x3070UL -#define SYSIO_IMAP_CE 0x3078UL -#define SYSIO_IMAP_SBERR 0x3080UL -#define SYSIO_IMAP_PMGMT 0x3088UL -#define SYSIO_IMAP_GFX 0x3090UL -#define SYSIO_IMAP_EUPA 0x3098UL - -#define bogon ((unsigned long) -1) -static unsigned long sysio_irq_offsets[] = { - /* SBUS Slot 0 --> 3, level 1 --> 7 */ - SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, - SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, - SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, - SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, - SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, - SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, - SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, - SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, - - /* Onboard devices (not relevant/used on SunFire). */ - SYSIO_IMAP_SCSI, - SYSIO_IMAP_ETH, - SYSIO_IMAP_BPP, - bogon, - SYSIO_IMAP_AUDIO, - SYSIO_IMAP_PFAIL, - bogon, - bogon, - SYSIO_IMAP_KMS, - SYSIO_IMAP_FLPY, - SYSIO_IMAP_SHW, - SYSIO_IMAP_KBD, - SYSIO_IMAP_MS, - SYSIO_IMAP_SER, - bogon, - bogon, - SYSIO_IMAP_TIM0, - SYSIO_IMAP_TIM1, - bogon, - bogon, - SYSIO_IMAP_UE, - SYSIO_IMAP_CE, - SYSIO_IMAP_SBERR, - SYSIO_IMAP_PMGMT, - SYSIO_IMAP_GFX, - SYSIO_IMAP_EUPA, -}; - -#undef bogon - -#define NUM_SYSIO_OFFSETS ARRAY_SIZE(sysio_irq_offsets) - -/* Convert Interrupt Mapping register pointer to associated - * Interrupt Clear register pointer, SYSIO specific version. - */ -#define SYSIO_ICLR_UNUSED0 0x3400UL -#define SYSIO_ICLR_SLOT0 0x3408UL -#define SYSIO_ICLR_SLOT1 0x3448UL -#define SYSIO_ICLR_SLOT2 0x3488UL -#define SYSIO_ICLR_SLOT3 0x34c8UL -static unsigned long sysio_imap_to_iclr(unsigned long imap) -{ - unsigned long diff = SYSIO_ICLR_UNUSED0 - SYSIO_IMAP_SLOT0; - return imap + diff; -} - -static unsigned int sbus_of_build_irq(struct device_node *dp, - unsigned int ino, - void *_data) -{ - unsigned long reg_base = (unsigned long) _data; - const struct linux_prom_registers *regs; - unsigned long imap, iclr; - int sbus_slot = 0; - int sbus_level = 0; - - ino &= 0x3f; - - regs = of_get_property(dp, "reg", NULL); - if (regs) - sbus_slot = regs->which_io; - - if (ino < 0x20) - ino += (sbus_slot * 8); - - imap = sysio_irq_offsets[ino]; - if (imap == ((unsigned long)-1)) { - prom_printf("get_irq_translations: Bad SYSIO INO[%x]\n", - ino); - prom_halt(); - } - imap += reg_base; - - /* SYSIO inconsistency. For external SLOTS, we have to select - * the right ICLR register based upon the lower SBUS irq level - * bits. - */ - if (ino >= 0x20) { - iclr = sysio_imap_to_iclr(imap); - } else { - sbus_level = ino & 0x7; - - switch(sbus_slot) { - case 0: - iclr = reg_base + SYSIO_ICLR_SLOT0; - break; - case 1: - iclr = reg_base + SYSIO_ICLR_SLOT1; - break; - case 2: - iclr = reg_base + SYSIO_ICLR_SLOT2; - break; - default: - case 3: - iclr = reg_base + SYSIO_ICLR_SLOT3; - break; - }; - - iclr += ((unsigned long)sbus_level - 1UL) * 8UL; - } - return build_irq(sbus_level, iclr, imap); -} - -static void __init sbus_irq_trans_init(struct device_node *dp) -{ - const struct linux_prom64_registers *regs; - - dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller)); - dp->irq_trans->irq_build = sbus_of_build_irq; - - regs = of_get_property(dp, "reg", NULL); - dp->irq_trans->data = (void *) (unsigned long) regs->phys_addr; -} -#endif /* CONFIG_SBUS */ - - -static unsigned int central_build_irq(struct device_node *dp, - unsigned int ino, - void *_data) -{ - struct device_node *central_dp = _data; - struct of_device *central_op = of_find_device_by_node(central_dp); - struct resource *res; - unsigned long imap, iclr; - u32 tmp; - - if (!strcmp(dp->name, "eeprom")) { - res = ¢ral_op->resource[5]; - } else if (!strcmp(dp->name, "zs")) { - res = ¢ral_op->resource[4]; - } else if (!strcmp(dp->name, "clock-board")) { - res = ¢ral_op->resource[3]; - } else { - return ino; - } - - imap = res->start + 0x00UL; - iclr = res->start + 0x10UL; - - /* Set the INO state to idle, and disable. */ - upa_writel(0, iclr); - upa_readl(iclr); - - tmp = upa_readl(imap); - tmp &= ~0x80000000; - upa_writel(tmp, imap); - - return build_irq(0, iclr, imap); -} - -static void __init central_irq_trans_init(struct device_node *dp) -{ - dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller)); - dp->irq_trans->irq_build = central_build_irq; - - dp->irq_trans->data = dp; -} - -struct irq_trans { - const char *name; - void (*init)(struct device_node *); -}; - -#ifdef CONFIG_PCI -static struct irq_trans __initdata pci_irq_trans_table[] = { - { "SUNW,sabre", sabre_irq_trans_init }, - { "pci108e,a000", sabre_irq_trans_init }, - { "pci108e,a001", sabre_irq_trans_init }, - { "SUNW,psycho", psycho_irq_trans_init }, - { "pci108e,8000", psycho_irq_trans_init }, - { "SUNW,schizo", schizo_irq_trans_init }, - { "pci108e,8001", schizo_irq_trans_init }, - { "SUNW,schizo+", schizo_irq_trans_init }, - { "pci108e,8002", schizo_irq_trans_init }, - { "SUNW,tomatillo", tomatillo_irq_trans_init }, - { "pci108e,a801", tomatillo_irq_trans_init }, - { "SUNW,sun4v-pci", pci_sun4v_irq_trans_init }, - { "pciex108e,80f0", fire_irq_trans_init }, -}; -#endif - -static unsigned int sun4v_vdev_irq_build(struct device_node *dp, - unsigned int devino, - void *_data) -{ - u32 devhandle = (u32) (unsigned long) _data; - - return sun4v_build_irq(devhandle, devino); -} - -static void __init sun4v_vdev_irq_trans_init(struct device_node *dp) -{ - const struct linux_prom64_registers *regs; - - dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller)); - dp->irq_trans->irq_build = sun4v_vdev_irq_build; - - regs = of_get_property(dp, "reg", NULL); - dp->irq_trans->data = (void *) (unsigned long) - ((regs->phys_addr >> 32UL) & 0x0fffffff); -} - -static void __init irq_trans_init(struct device_node *dp) -{ -#ifdef CONFIG_PCI - const char *model; - int i; -#endif - -#ifdef CONFIG_PCI - model = of_get_property(dp, "model", NULL); - if (!model) - model = of_get_property(dp, "compatible", NULL); - if (model) { - for (i = 0; i < ARRAY_SIZE(pci_irq_trans_table); i++) { - struct irq_trans *t = &pci_irq_trans_table[i]; - - if (!strcmp(model, t->name)) { - t->init(dp); - return; - } - } - } -#endif -#ifdef CONFIG_SBUS - if (!strcmp(dp->name, "sbus") || - !strcmp(dp->name, "sbi")) { - sbus_irq_trans_init(dp); - return; - } -#endif - if (!strcmp(dp->name, "fhc") && - !strcmp(dp->parent->name, "central")) { - central_irq_trans_init(dp); - return; - } - if (!strcmp(dp->name, "virtual-devices") || - !strcmp(dp->name, "niu")) { - sun4v_vdev_irq_trans_init(dp); - return; - } -} - -static int is_root_node(const struct device_node *dp) -{ - if (!dp) - return 0; - - return (dp->parent == NULL); -} - -/* The following routines deal with the black magic of fully naming a - * node. - * - * Certain well known named nodes are just the simple name string. - * - * Actual devices have an address specifier appended to the base name - * string, like this "foo@addr". The "addr" can be in any number of - * formats, and the platform plus the type of the node determine the - * format and how it is constructed. - * - * For children of the ROOT node, the naming convention is fixed and - * determined by whether this is a sun4u or sun4v system. - * - * For children of other nodes, it is bus type specific. So - * we walk up the tree until we discover a "device_type" property - * we recognize and we go from there. - * - * As an example, the boot device on my workstation has a full path: - * - * /pci@1e,600000/ide@d/disk@0,0:c - */ -static void __init sun4v_path_component(struct device_node *dp, char *tmp_buf) -{ - struct linux_prom64_registers *regs; - struct property *rprop; - u32 high_bits, low_bits, type; - - rprop = of_find_property(dp, "reg", NULL); - if (!rprop) - return; - - regs = rprop->value; - if (!is_root_node(dp->parent)) { - sprintf(tmp_buf, "%s@%x,%x", - dp->name, - (unsigned int) (regs->phys_addr >> 32UL), - (unsigned int) (regs->phys_addr & 0xffffffffUL)); - return; - } - - type = regs->phys_addr >> 60UL; - high_bits = (regs->phys_addr >> 32UL) & 0x0fffffffUL; - low_bits = (regs->phys_addr & 0xffffffffUL); - - if (type == 0 || type == 8) { - const char *prefix = (type == 0) ? "m" : "i"; - - if (low_bits) - sprintf(tmp_buf, "%s@%s%x,%x", - dp->name, prefix, - high_bits, low_bits); - else - sprintf(tmp_buf, "%s@%s%x", - dp->name, - prefix, - high_bits); - } else if (type == 12) { - sprintf(tmp_buf, "%s@%x", - dp->name, high_bits); - } -} - -static void __init sun4u_path_component(struct device_node *dp, char *tmp_buf) -{ - struct linux_prom64_registers *regs; - struct property *prop; - - prop = of_find_property(dp, "reg", NULL); - if (!prop) - return; - - regs = prop->value; - if (!is_root_node(dp->parent)) { - sprintf(tmp_buf, "%s@%x,%x", - dp->name, - (unsigned int) (regs->phys_addr >> 32UL), - (unsigned int) (regs->phys_addr & 0xffffffffUL)); - return; - } - - prop = of_find_property(dp, "upa-portid", NULL); - if (!prop) - prop = of_find_property(dp, "portid", NULL); - if (prop) { - unsigned long mask = 0xffffffffUL; - - if (tlb_type >= cheetah) - mask = 0x7fffff; - - sprintf(tmp_buf, "%s@%x,%x", - dp->name, - *(u32 *)prop->value, - (unsigned int) (regs->phys_addr & mask)); - } -} - -/* "name@slot,offset" */ -static void __init sbus_path_component(struct device_node *dp, char *tmp_buf) -{ - struct linux_prom_registers *regs; - struct property *prop; - - prop = of_find_property(dp, "reg", NULL); - if (!prop) - return; - - regs = prop->value; - sprintf(tmp_buf, "%s@%x,%x", - dp->name, - regs->which_io, - regs->phys_addr); -} - -/* "name@devnum[,func]" */ -static void __init pci_path_component(struct device_node *dp, char *tmp_buf) -{ - struct linux_prom_pci_registers *regs; - struct property *prop; - unsigned int devfn; - - prop = of_find_property(dp, "reg", NULL); - if (!prop) - return; - - regs = prop->value; - devfn = (regs->phys_hi >> 8) & 0xff; - if (devfn & 0x07) { - sprintf(tmp_buf, "%s@%x,%x", - dp->name, - devfn >> 3, - devfn & 0x07); - } else { - sprintf(tmp_buf, "%s@%x", - dp->name, - devfn >> 3); - } -} - -/* "name@UPA_PORTID,offset" */ -static void __init upa_path_component(struct device_node *dp, char *tmp_buf) -{ - struct linux_prom64_registers *regs; - struct property *prop; - - prop = of_find_property(dp, "reg", NULL); - if (!prop) - return; - - regs = prop->value; - - prop = of_find_property(dp, "upa-portid", NULL); - if (!prop) - return; - - sprintf(tmp_buf, "%s@%x,%x", - dp->name, - *(u32 *) prop->value, - (unsigned int) (regs->phys_addr & 0xffffffffUL)); -} - -/* "name@reg" */ -static void __init vdev_path_component(struct device_node *dp, char *tmp_buf) -{ - struct property *prop; - u32 *regs; - - prop = of_find_property(dp, "reg", NULL); - if (!prop) - return; - - regs = prop->value; - - sprintf(tmp_buf, "%s@%x", dp->name, *regs); -} - -/* "name@addrhi,addrlo" */ -static void __init ebus_path_component(struct device_node *dp, char *tmp_buf) -{ - struct linux_prom64_registers *regs; - struct property *prop; - - prop = of_find_property(dp, "reg", NULL); - if (!prop) - return; - - regs = prop->value; - - sprintf(tmp_buf, "%s@%x,%x", - dp->name, - (unsigned int) (regs->phys_addr >> 32UL), - (unsigned int) (regs->phys_addr & 0xffffffffUL)); -} - -/* "name@bus,addr" */ -static void __init i2c_path_component(struct device_node *dp, char *tmp_buf) -{ - struct property *prop; - u32 *regs; - - prop = of_find_property(dp, "reg", NULL); - if (!prop) - return; - - regs = prop->value; - - /* This actually isn't right... should look at the #address-cells - * property of the i2c bus node etc. etc. - */ - sprintf(tmp_buf, "%s@%x,%x", - dp->name, regs[0], regs[1]); -} - -/* "name@reg0[,reg1]" */ -static void __init usb_path_component(struct device_node *dp, char *tmp_buf) -{ - struct property *prop; - u32 *regs; - - prop = of_find_property(dp, "reg", NULL); - if (!prop) - return; - - regs = prop->value; - - if (prop->length == sizeof(u32) || regs[1] == 1) { - sprintf(tmp_buf, "%s@%x", - dp->name, regs[0]); - } else { - sprintf(tmp_buf, "%s@%x,%x", - dp->name, regs[0], regs[1]); - } -} - -/* "name@reg0reg1[,reg2reg3]" */ -static void __init ieee1394_path_component(struct device_node *dp, char *tmp_buf) -{ - struct property *prop; - u32 *regs; - - prop = of_find_property(dp, "reg", NULL); - if (!prop) - return; - - regs = prop->value; - - if (regs[2] || regs[3]) { - sprintf(tmp_buf, "%s@%08x%08x,%04x%08x", - dp->name, regs[0], regs[1], regs[2], regs[3]); - } else { - sprintf(tmp_buf, "%s@%08x%08x", - dp->name, regs[0], regs[1]); - } -} - -static void __init __build_path_component(struct device_node *dp, char *tmp_buf) -{ - struct device_node *parent = dp->parent; - - if (parent != NULL) { - if (!strcmp(parent->type, "pci") || - !strcmp(parent->type, "pciex")) { - pci_path_component(dp, tmp_buf); - return; - } - if (!strcmp(parent->type, "sbus")) { - sbus_path_component(dp, tmp_buf); - return; - } - if (!strcmp(parent->type, "upa")) { - upa_path_component(dp, tmp_buf); - return; - } - if (!strcmp(parent->type, "ebus")) { - ebus_path_component(dp, tmp_buf); - return; - } - if (!strcmp(parent->name, "usb") || - !strcmp(parent->name, "hub")) { - usb_path_component(dp, tmp_buf); - return; - } - if (!strcmp(parent->type, "i2c")) { - i2c_path_component(dp, tmp_buf); - return; - } - if (!strcmp(parent->type, "firewire")) { - ieee1394_path_component(dp, tmp_buf); - return; - } - if (!strcmp(parent->type, "virtual-devices")) { - vdev_path_component(dp, tmp_buf); - return; - } - /* "isa" is handled with platform naming */ - } - - /* Use platform naming convention. */ - if (tlb_type == hypervisor) { - sun4v_path_component(dp, tmp_buf); - return; - } else { - sun4u_path_component(dp, tmp_buf); - } -} - -static char * __init build_path_component(struct device_node *dp) -{ - char tmp_buf[64], *n; - - tmp_buf[0] = '\0'; - __build_path_component(dp, tmp_buf); - if (tmp_buf[0] == '\0') - strcpy(tmp_buf, dp->name); - - n = prom_early_alloc(strlen(tmp_buf) + 1); - strcpy(n, tmp_buf); - - return n; -} - -static char * __init build_full_name(struct device_node *dp) -{ - int len, ourlen, plen; - char *n; - - plen = strlen(dp->parent->full_name); - ourlen = strlen(dp->path_component_name); - len = ourlen + plen + 2; - - n = prom_early_alloc(len); - strcpy(n, dp->parent->full_name); - if (!is_root_node(dp->parent)) { - strcpy(n + plen, "/"); - plen++; - } - strcpy(n + plen, dp->path_component_name); - - return n; -} - -static unsigned int unique_id; - -static struct property * __init build_one_prop(phandle node, char *prev, char *special_name, void *special_val, int special_len) -{ - static struct property *tmp = NULL; - struct property *p; - - if (tmp) { - p = tmp; - memset(p, 0, sizeof(*p) + 32); - tmp = NULL; - } else { - p = prom_early_alloc(sizeof(struct property) + 32); - p->unique_id = unique_id++; - } - - p->name = (char *) (p + 1); - if (special_name) { - strcpy(p->name, special_name); - p->length = special_len; - p->value = prom_early_alloc(special_len); - memcpy(p->value, special_val, special_len); - } else { - if (prev == NULL) { - prom_firstprop(node, p->name); - } else { - prom_nextprop(node, prev, p->name); - } - if (strlen(p->name) == 0) { - tmp = p; - return NULL; - } - p->length = prom_getproplen(node, p->name); - if (p->length <= 0) { - p->length = 0; - } else { - p->value = prom_early_alloc(p->length + 1); - prom_getproperty(node, p->name, p->value, p->length); - ((unsigned char *)p->value)[p->length] = '\0'; - } - } - return p; -} - -static struct property * __init build_prop_list(phandle node) -{ - struct property *head, *tail; - - head = tail = build_one_prop(node, NULL, - ".node", &node, sizeof(node)); - - tail->next = build_one_prop(node, NULL, NULL, NULL, 0); - tail = tail->next; - while(tail) { - tail->next = build_one_prop(node, tail->name, - NULL, NULL, 0); - tail = tail->next; - } - - return head; -} - -static char * __init get_one_property(phandle node, const char *name) -{ - char *buf = "<NULL>"; - int len; - - len = prom_getproplen(node, name); - if (len > 0) { - buf = prom_early_alloc(len); - prom_getproperty(node, name, buf, len); - } - - return buf; -} - -static struct device_node * __init create_node(phandle node, struct device_node *parent) -{ - struct device_node *dp; - - if (!node) - return NULL; - - dp = prom_early_alloc(sizeof(*dp)); - dp->unique_id = unique_id++; - dp->parent = parent; - - kref_init(&dp->kref); - - dp->name = get_one_property(node, "name"); - dp->type = get_one_property(node, "device_type"); - dp->node = node; - - dp->properties = build_prop_list(node); - - irq_trans_init(dp); - - return dp; -} - -static struct device_node * __init build_tree(struct device_node *parent, phandle node, struct device_node ***nextp) -{ - struct device_node *ret = NULL, *prev_sibling = NULL; - struct device_node *dp; - - while (1) { - dp = create_node(node, parent); - if (!dp) - break; - - if (prev_sibling) - prev_sibling->sibling = dp; - - if (!ret) - ret = dp; - prev_sibling = dp; - - *(*nextp) = dp; - *nextp = &dp->allnext; - - dp->path_component_name = build_path_component(dp); - dp->full_name = build_full_name(dp); - - dp->child = build_tree(dp, prom_getchild(node), nextp); - - node = prom_getsibling(node); - } - - return ret; -} - -static const char *get_mid_prop(void) -{ - return (tlb_type == spitfire ? "upa-portid" : "portid"); -} - -struct device_node *of_find_node_by_cpuid(int cpuid) -{ - struct device_node *dp; - const char *mid_prop = get_mid_prop(); - - for_each_node_by_type(dp, "cpu") { - int id = of_getintprop_default(dp, mid_prop, -1); - const char *this_mid_prop = mid_prop; - - if (id < 0) { - this_mid_prop = "cpuid"; - id = of_getintprop_default(dp, this_mid_prop, -1); - } - - if (id < 0) { - prom_printf("OF: Serious problem, cpu lacks " - "%s property", this_mid_prop); - prom_halt(); - } - if (cpuid == id) - return dp; - } - return NULL; -} - -static void __init of_fill_in_cpu_data(void) -{ - struct device_node *dp; - const char *mid_prop = get_mid_prop(); - - ncpus_probed = 0; - for_each_node_by_type(dp, "cpu") { - int cpuid = of_getintprop_default(dp, mid_prop, -1); - const char *this_mid_prop = mid_prop; - struct device_node *portid_parent; - int portid = -1; - - portid_parent = NULL; - if (cpuid < 0) { - this_mid_prop = "cpuid"; - cpuid = of_getintprop_default(dp, this_mid_prop, -1); - if (cpuid >= 0) { - int limit = 2; - - portid_parent = dp; - while (limit--) { - portid_parent = portid_parent->parent; - if (!portid_parent) - break; - portid = of_getintprop_default(portid_parent, - "portid", -1); - if (portid >= 0) - break; - } - } - } - - if (cpuid < 0) { - prom_printf("OF: Serious problem, cpu lacks " - "%s property", this_mid_prop); - prom_halt(); - } - - ncpus_probed++; - -#ifdef CONFIG_SMP - if (cpuid >= NR_CPUS) { - printk(KERN_WARNING "Ignoring CPU %d which is " - ">= NR_CPUS (%d)\n", - cpuid, NR_CPUS); - continue; - } -#else - /* On uniprocessor we only want the values for the - * real physical cpu the kernel booted onto, however - * cpu_data() only has one entry at index 0. - */ - if (cpuid != real_hard_smp_processor_id()) - continue; - cpuid = 0; -#endif - - cpu_data(cpuid).clock_tick = - of_getintprop_default(dp, "clock-frequency", 0); - - if (portid_parent) { - cpu_data(cpuid).dcache_size = - of_getintprop_default(dp, "l1-dcache-size", - 16 * 1024); - cpu_data(cpuid).dcache_line_size = - of_getintprop_default(dp, "l1-dcache-line-size", - 32); - cpu_data(cpuid).icache_size = - of_getintprop_default(dp, "l1-icache-size", - 8 * 1024); - cpu_data(cpuid).icache_line_size = - of_getintprop_default(dp, "l1-icache-line-size", - 32); - cpu_data(cpuid).ecache_size = - of_getintprop_default(dp, "l2-cache-size", 0); - cpu_data(cpuid).ecache_line_size = - of_getintprop_default(dp, "l2-cache-line-size", 0); - if (!cpu_data(cpuid).ecache_size || - !cpu_data(cpuid).ecache_line_size) { - cpu_data(cpuid).ecache_size = - of_getintprop_default(portid_parent, - "l2-cache-size", - (4 * 1024 * 1024)); - cpu_data(cpuid).ecache_line_size = - of_getintprop_default(portid_parent, - "l2-cache-line-size", 64); - } - - cpu_data(cpuid).core_id = portid + 1; - cpu_data(cpuid).proc_id = portid; -#ifdef CONFIG_SMP - sparc64_multi_core = 1; -#endif - } else { - cpu_data(cpuid).dcache_size = - of_getintprop_default(dp, "dcache-size", 16 * 1024); - cpu_data(cpuid).dcache_line_size = - of_getintprop_default(dp, "dcache-line-size", 32); - - cpu_data(cpuid).icache_size = - of_getintprop_default(dp, "icache-size", 16 * 1024); - cpu_data(cpuid).icache_line_size = - of_getintprop_default(dp, "icache-line-size", 32); - - cpu_data(cpuid).ecache_size = - of_getintprop_default(dp, "ecache-size", - (4 * 1024 * 1024)); - cpu_data(cpuid).ecache_line_size = - of_getintprop_default(dp, "ecache-line-size", 64); - - cpu_data(cpuid).core_id = 0; - cpu_data(cpuid).proc_id = -1; - } - -#ifdef CONFIG_SMP - cpu_set(cpuid, cpu_present_map); - cpu_set(cpuid, cpu_possible_map); -#endif - } - - smp_fill_in_sib_core_maps(); -} - -struct device_node *of_console_device; -EXPORT_SYMBOL(of_console_device); - -char *of_console_path; -EXPORT_SYMBOL(of_console_path); - -char *of_console_options; -EXPORT_SYMBOL(of_console_options); - -static void __init of_console_init(void) -{ - char *msg = "OF stdout device is: %s\n"; - struct device_node *dp; - const char *type; - phandle node; - - of_console_path = prom_early_alloc(256); - if (prom_ihandle2path(prom_stdout, of_console_path, 256) < 0) { - prom_printf("Cannot obtain path of stdout.\n"); - prom_halt(); - } - of_console_options = strrchr(of_console_path, ':'); - if (of_console_options) { - of_console_options++; - if (*of_console_options == '\0') - of_console_options = NULL; - } - - node = prom_inst2pkg(prom_stdout); - if (!node) { - prom_printf("Cannot resolve stdout node from " - "instance %08x.\n", prom_stdout); - prom_halt(); - } - - dp = of_find_node_by_phandle(node); - type = of_get_property(dp, "device_type", NULL); - if (!type) { - prom_printf("Console stdout lacks device_type property.\n"); - prom_halt(); - } - - if (strcmp(type, "display") && strcmp(type, "serial")) { - prom_printf("Console device_type is neither display " - "nor serial.\n"); - prom_halt(); - } - - of_console_device = dp; - - printk(msg, of_console_path); -} - -void __init prom_build_devicetree(void) -{ - struct device_node **nextp; - - allnodes = create_node(prom_root_node, NULL); - allnodes->path_component_name = ""; - allnodes->full_name = "/"; - - nextp = &allnodes->allnext; - allnodes->child = build_tree(allnodes, - prom_getchild(allnodes->node), - &nextp); - of_console_init(); - - printk("PROM: Built device tree with %u bytes of memory.\n", - prom_early_allocated); - - if (tlb_type != hypervisor) - of_fill_in_cpu_data(); -} diff --git a/arch/sparc64/kernel/psycho_common.c b/arch/sparc64/kernel/psycho_common.c deleted file mode 100644 index 790996428c14..000000000000 --- a/arch/sparc64/kernel/psycho_common.c +++ /dev/null @@ -1,470 +0,0 @@ -/* psycho_common.c: Code common to PSYCHO and derivative PCI controllers. - * - * Copyright (C) 2008 David S. Miller <davem@davemloft.net> - */ -#include <linux/kernel.h> -#include <linux/interrupt.h> - -#include <asm/upa.h> - -#include "pci_impl.h" -#include "iommu_common.h" -#include "psycho_common.h" - -#define PSYCHO_STRBUF_CTRL_DENAB 0x0000000000000002UL -#define PSYCHO_STCERR_WRITE 0x0000000000000002UL -#define PSYCHO_STCERR_READ 0x0000000000000001UL -#define PSYCHO_STCTAG_PPN 0x0fffffff00000000UL -#define PSYCHO_STCTAG_VPN 0x00000000ffffe000UL -#define PSYCHO_STCTAG_VALID 0x0000000000000002UL -#define PSYCHO_STCTAG_WRITE 0x0000000000000001UL -#define PSYCHO_STCLINE_LINDX 0x0000000001e00000UL -#define PSYCHO_STCLINE_SPTR 0x00000000001f8000UL -#define PSYCHO_STCLINE_LADDR 0x0000000000007f00UL -#define PSYCHO_STCLINE_EPTR 0x00000000000000fcUL -#define PSYCHO_STCLINE_VALID 0x0000000000000002UL -#define PSYCHO_STCLINE_FOFN 0x0000000000000001UL - -static DEFINE_SPINLOCK(stc_buf_lock); -static unsigned long stc_error_buf[128]; -static unsigned long stc_tag_buf[16]; -static unsigned long stc_line_buf[16]; - -static void psycho_check_stc_error(struct pci_pbm_info *pbm) -{ - unsigned long err_base, tag_base, line_base; - struct strbuf *strbuf = &pbm->stc; - u64 control; - int i; - - if (!strbuf->strbuf_control) - return; - - err_base = strbuf->strbuf_err_stat; - tag_base = strbuf->strbuf_tag_diag; - line_base = strbuf->strbuf_line_diag; - - spin_lock(&stc_buf_lock); - - /* This is __REALLY__ dangerous. When we put the streaming - * buffer into diagnostic mode to probe it's tags and error - * status, we _must_ clear all of the line tag valid bits - * before re-enabling the streaming buffer. If any dirty data - * lives in the STC when we do this, we will end up - * invalidating it before it has a chance to reach main - * memory. - */ - control = upa_readq(strbuf->strbuf_control); - upa_writeq(control | PSYCHO_STRBUF_CTRL_DENAB, strbuf->strbuf_control); - for (i = 0; i < 128; i++) { - u64 val; - - val = upa_readq(err_base + (i * 8UL)); - upa_writeq(0UL, err_base + (i * 8UL)); - stc_error_buf[i] = val; - } - for (i = 0; i < 16; i++) { - stc_tag_buf[i] = upa_readq(tag_base + (i * 8UL)); - stc_line_buf[i] = upa_readq(line_base + (i * 8UL)); - upa_writeq(0UL, tag_base + (i * 8UL)); - upa_writeq(0UL, line_base + (i * 8UL)); - } - - /* OK, state is logged, exit diagnostic mode. */ - upa_writeq(control, strbuf->strbuf_control); - - for (i = 0; i < 16; i++) { - int j, saw_error, first, last; - - saw_error = 0; - first = i * 8; - last = first + 8; - for (j = first; j < last; j++) { - u64 errval = stc_error_buf[j]; - if (errval != 0) { - saw_error++; - printk(KERN_ERR "%s: STC_ERR(%d)[wr(%d)" - "rd(%d)]\n", - pbm->name, - j, - (errval & PSYCHO_STCERR_WRITE) ? 1 : 0, - (errval & PSYCHO_STCERR_READ) ? 1 : 0); - } - } - if (saw_error != 0) { - u64 tagval = stc_tag_buf[i]; - u64 lineval = stc_line_buf[i]; - printk(KERN_ERR "%s: STC_TAG(%d)[PA(%016lx)VA(%08lx)" - "V(%d)W(%d)]\n", - pbm->name, - i, - ((tagval & PSYCHO_STCTAG_PPN) >> 19UL), - (tagval & PSYCHO_STCTAG_VPN), - ((tagval & PSYCHO_STCTAG_VALID) ? 1 : 0), - ((tagval & PSYCHO_STCTAG_WRITE) ? 1 : 0)); - printk(KERN_ERR "%s: STC_LINE(%d)[LIDX(%lx)SP(%lx)" - "LADDR(%lx)EP(%lx)V(%d)FOFN(%d)]\n", - pbm->name, - i, - ((lineval & PSYCHO_STCLINE_LINDX) >> 21UL), - ((lineval & PSYCHO_STCLINE_SPTR) >> 15UL), - ((lineval & PSYCHO_STCLINE_LADDR) >> 8UL), - ((lineval & PSYCHO_STCLINE_EPTR) >> 2UL), - ((lineval & PSYCHO_STCLINE_VALID) ? 1 : 0), - ((lineval & PSYCHO_STCLINE_FOFN) ? 1 : 0)); - } - } - - spin_unlock(&stc_buf_lock); -} - -#define PSYCHO_IOMMU_TAG 0xa580UL -#define PSYCHO_IOMMU_DATA 0xa600UL - -static void psycho_record_iommu_tags_and_data(struct pci_pbm_info *pbm, - u64 *tag, u64 *data) -{ - int i; - - for (i = 0; i < 16; i++) { - unsigned long base = pbm->controller_regs; - unsigned long off = i * 8UL; - - tag[i] = upa_readq(base + PSYCHO_IOMMU_TAG+off); - data[i] = upa_readq(base + PSYCHO_IOMMU_DATA+off); - - /* Now clear out the entry. */ - upa_writeq(0, base + PSYCHO_IOMMU_TAG + off); - upa_writeq(0, base + PSYCHO_IOMMU_DATA + off); - } -} - -#define PSYCHO_IOMMU_TAG_ERRSTS (0x3UL << 23UL) -#define PSYCHO_IOMMU_TAG_ERR (0x1UL << 22UL) -#define PSYCHO_IOMMU_TAG_WRITE (0x1UL << 21UL) -#define PSYCHO_IOMMU_TAG_STREAM (0x1UL << 20UL) -#define PSYCHO_IOMMU_TAG_SIZE (0x1UL << 19UL) -#define PSYCHO_IOMMU_TAG_VPAGE 0x7ffffUL -#define PSYCHO_IOMMU_DATA_VALID (1UL << 30UL) -#define PSYCHO_IOMMU_DATA_CACHE (1UL << 28UL) -#define PSYCHO_IOMMU_DATA_PPAGE 0xfffffffUL - -static void psycho_dump_iommu_tags_and_data(struct pci_pbm_info *pbm, - u64 *tag, u64 *data) -{ - int i; - - for (i = 0; i < 16; i++) { - u64 tag_val, data_val; - const char *type_str; - tag_val = tag[i]; - if (!(tag_val & PSYCHO_IOMMU_TAG_ERR)) - continue; - - data_val = data[i]; - switch((tag_val & PSYCHO_IOMMU_TAG_ERRSTS) >> 23UL) { - case 0: - type_str = "Protection Error"; - break; - case 1: - type_str = "Invalid Error"; - break; - case 2: - type_str = "TimeOut Error"; - break; - case 3: - default: - type_str = "ECC Error"; - break; - } - - printk(KERN_ERR "%s: IOMMU TAG(%d)[error(%s) wr(%d) " - "str(%d) sz(%dK) vpg(%08lx)]\n", - pbm->name, i, type_str, - ((tag_val & PSYCHO_IOMMU_TAG_WRITE) ? 1 : 0), - ((tag_val & PSYCHO_IOMMU_TAG_STREAM) ? 1 : 0), - ((tag_val & PSYCHO_IOMMU_TAG_SIZE) ? 64 : 8), - (tag_val & PSYCHO_IOMMU_TAG_VPAGE) << IOMMU_PAGE_SHIFT); - printk(KERN_ERR "%s: IOMMU DATA(%d)[valid(%d) cache(%d) " - "ppg(%016lx)]\n", - pbm->name, i, - ((data_val & PSYCHO_IOMMU_DATA_VALID) ? 1 : 0), - ((data_val & PSYCHO_IOMMU_DATA_CACHE) ? 1 : 0), - (data_val & PSYCHO_IOMMU_DATA_PPAGE)<<IOMMU_PAGE_SHIFT); - } -} - -#define PSYCHO_IOMMU_CTRL_XLTESTAT 0x0000000006000000UL -#define PSYCHO_IOMMU_CTRL_XLTEERR 0x0000000001000000UL - -void psycho_check_iommu_error(struct pci_pbm_info *pbm, - unsigned long afsr, - unsigned long afar, - enum psycho_error_type type) -{ - u64 control, iommu_tag[16], iommu_data[16]; - struct iommu *iommu = pbm->iommu; - unsigned long flags; - - spin_lock_irqsave(&iommu->lock, flags); - control = upa_readq(iommu->iommu_control); - if (control & PSYCHO_IOMMU_CTRL_XLTEERR) { - const char *type_str; - - control &= ~PSYCHO_IOMMU_CTRL_XLTEERR; - upa_writeq(control, iommu->iommu_control); - - switch ((control & PSYCHO_IOMMU_CTRL_XLTESTAT) >> 25UL) { - case 0: - type_str = "Protection Error"; - break; - case 1: - type_str = "Invalid Error"; - break; - case 2: - type_str = "TimeOut Error"; - break; - case 3: - default: - type_str = "ECC Error"; - break; - }; - printk(KERN_ERR "%s: IOMMU Error, type[%s]\n", - pbm->name, type_str); - - /* It is very possible for another DVMA to occur while - * we do this probe, and corrupt the system further. - * But we are so screwed at this point that we are - * likely to crash hard anyways, so get as much - * diagnostic information to the console as we can. - */ - psycho_record_iommu_tags_and_data(pbm, iommu_tag, iommu_data); - psycho_dump_iommu_tags_and_data(pbm, iommu_tag, iommu_data); - } - psycho_check_stc_error(pbm); - spin_unlock_irqrestore(&iommu->lock, flags); -} - -#define PSYCHO_PCICTRL_SBH_ERR 0x0000000800000000UL -#define PSYCHO_PCICTRL_SERR 0x0000000400000000UL - -static irqreturn_t psycho_pcierr_intr_other(struct pci_pbm_info *pbm) -{ - irqreturn_t ret = IRQ_NONE; - u64 csr, csr_error_bits; - u16 stat, *addr; - - csr = upa_readq(pbm->pci_csr); - csr_error_bits = csr & (PSYCHO_PCICTRL_SBH_ERR | PSYCHO_PCICTRL_SERR); - if (csr_error_bits) { - /* Clear the errors. */ - upa_writeq(csr, pbm->pci_csr); - - /* Log 'em. */ - if (csr_error_bits & PSYCHO_PCICTRL_SBH_ERR) - printk(KERN_ERR "%s: PCI streaming byte hole " - "error asserted.\n", pbm->name); - if (csr_error_bits & PSYCHO_PCICTRL_SERR) - printk(KERN_ERR "%s: PCI SERR signal asserted.\n", - pbm->name); - ret = IRQ_HANDLED; - } - addr = psycho_pci_config_mkaddr(pbm, pbm->pci_first_busno, - 0, PCI_STATUS); - pci_config_read16(addr, &stat); - if (stat & (PCI_STATUS_PARITY | - PCI_STATUS_SIG_TARGET_ABORT | - PCI_STATUS_REC_TARGET_ABORT | - PCI_STATUS_REC_MASTER_ABORT | - PCI_STATUS_SIG_SYSTEM_ERROR)) { - printk(KERN_ERR "%s: PCI bus error, PCI_STATUS[%04x]\n", - pbm->name, stat); - pci_config_write16(addr, 0xffff); - ret = IRQ_HANDLED; - } - return ret; -} - -#define PSYCHO_PCIAFSR_PMA 0x8000000000000000UL -#define PSYCHO_PCIAFSR_PTA 0x4000000000000000UL -#define PSYCHO_PCIAFSR_PRTRY 0x2000000000000000UL -#define PSYCHO_PCIAFSR_PPERR 0x1000000000000000UL -#define PSYCHO_PCIAFSR_SMA 0x0800000000000000UL -#define PSYCHO_PCIAFSR_STA 0x0400000000000000UL -#define PSYCHO_PCIAFSR_SRTRY 0x0200000000000000UL -#define PSYCHO_PCIAFSR_SPERR 0x0100000000000000UL -#define PSYCHO_PCIAFSR_RESV1 0x00ff000000000000UL -#define PSYCHO_PCIAFSR_BMSK 0x0000ffff00000000UL -#define PSYCHO_PCIAFSR_BLK 0x0000000080000000UL -#define PSYCHO_PCIAFSR_RESV2 0x0000000040000000UL -#define PSYCHO_PCIAFSR_MID 0x000000003e000000UL -#define PSYCHO_PCIAFSR_RESV3 0x0000000001ffffffUL - -irqreturn_t psycho_pcierr_intr(int irq, void *dev_id) -{ - struct pci_pbm_info *pbm = dev_id; - u64 afsr, afar, error_bits; - int reported; - - afsr = upa_readq(pbm->pci_afsr); - afar = upa_readq(pbm->pci_afar); - error_bits = afsr & - (PSYCHO_PCIAFSR_PMA | PSYCHO_PCIAFSR_PTA | - PSYCHO_PCIAFSR_PRTRY | PSYCHO_PCIAFSR_PPERR | - PSYCHO_PCIAFSR_SMA | PSYCHO_PCIAFSR_STA | - PSYCHO_PCIAFSR_SRTRY | PSYCHO_PCIAFSR_SPERR); - if (!error_bits) - return psycho_pcierr_intr_other(pbm); - upa_writeq(error_bits, pbm->pci_afsr); - printk(KERN_ERR "%s: PCI Error, primary error type[%s]\n", - pbm->name, - (((error_bits & PSYCHO_PCIAFSR_PMA) ? - "Master Abort" : - ((error_bits & PSYCHO_PCIAFSR_PTA) ? - "Target Abort" : - ((error_bits & PSYCHO_PCIAFSR_PRTRY) ? - "Excessive Retries" : - ((error_bits & PSYCHO_PCIAFSR_PPERR) ? - "Parity Error" : "???")))))); - printk(KERN_ERR "%s: bytemask[%04lx] UPA_MID[%02lx] was_block(%d)\n", - pbm->name, - (afsr & PSYCHO_PCIAFSR_BMSK) >> 32UL, - (afsr & PSYCHO_PCIAFSR_MID) >> 25UL, - (afsr & PSYCHO_PCIAFSR_BLK) ? 1 : 0); - printk(KERN_ERR "%s: PCI AFAR [%016lx]\n", pbm->name, afar); - printk(KERN_ERR "%s: PCI Secondary errors [", pbm->name); - reported = 0; - if (afsr & PSYCHO_PCIAFSR_SMA) { - reported++; - printk("(Master Abort)"); - } - if (afsr & PSYCHO_PCIAFSR_STA) { - reported++; - printk("(Target Abort)"); - } - if (afsr & PSYCHO_PCIAFSR_SRTRY) { - reported++; - printk("(Excessive Retries)"); - } - if (afsr & PSYCHO_PCIAFSR_SPERR) { - reported++; - printk("(Parity Error)"); - } - if (!reported) - printk("(none)"); - printk("]\n"); - - if (error_bits & (PSYCHO_PCIAFSR_PTA | PSYCHO_PCIAFSR_STA)) { - psycho_check_iommu_error(pbm, afsr, afar, PCI_ERR); - pci_scan_for_target_abort(pbm, pbm->pci_bus); - } - if (error_bits & (PSYCHO_PCIAFSR_PMA | PSYCHO_PCIAFSR_SMA)) - pci_scan_for_master_abort(pbm, pbm->pci_bus); - - if (error_bits & (PSYCHO_PCIAFSR_PPERR | PSYCHO_PCIAFSR_SPERR)) - pci_scan_for_parity_error(pbm, pbm->pci_bus); - - return IRQ_HANDLED; -} - -static void psycho_iommu_flush(struct pci_pbm_info *pbm) -{ - int i; - - for (i = 0; i < 16; i++) { - unsigned long off = i * 8; - - upa_writeq(0, pbm->controller_regs + PSYCHO_IOMMU_TAG + off); - upa_writeq(0, pbm->controller_regs + PSYCHO_IOMMU_DATA + off); - } -} - -#define PSYCHO_IOMMU_CONTROL 0x0200UL -#define PSYCHO_IOMMU_CTRL_TSBSZ 0x0000000000070000UL -#define PSYCHO_IOMMU_TSBSZ_1K 0x0000000000000000UL -#define PSYCHO_IOMMU_TSBSZ_2K 0x0000000000010000UL -#define PSYCHO_IOMMU_TSBSZ_4K 0x0000000000020000UL -#define PSYCHO_IOMMU_TSBSZ_8K 0x0000000000030000UL -#define PSYCHO_IOMMU_TSBSZ_16K 0x0000000000040000UL -#define PSYCHO_IOMMU_TSBSZ_32K 0x0000000000050000UL -#define PSYCHO_IOMMU_TSBSZ_64K 0x0000000000060000UL -#define PSYCHO_IOMMU_TSBSZ_128K 0x0000000000070000UL -#define PSYCHO_IOMMU_CTRL_TBWSZ 0x0000000000000004UL -#define PSYCHO_IOMMU_CTRL_DENAB 0x0000000000000002UL -#define PSYCHO_IOMMU_CTRL_ENAB 0x0000000000000001UL -#define PSYCHO_IOMMU_FLUSH 0x0210UL -#define PSYCHO_IOMMU_TSBBASE 0x0208UL - -int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize, - u32 dvma_offset, u32 dma_mask, - unsigned long write_complete_offset) -{ - struct iommu *iommu = pbm->iommu; - u64 control; - int err; - - iommu->iommu_control = pbm->controller_regs + PSYCHO_IOMMU_CONTROL; - iommu->iommu_tsbbase = pbm->controller_regs + PSYCHO_IOMMU_TSBBASE; - iommu->iommu_flush = pbm->controller_regs + PSYCHO_IOMMU_FLUSH; - iommu->iommu_tags = pbm->controller_regs + PSYCHO_IOMMU_TAG; - iommu->write_complete_reg = (pbm->controller_regs + - write_complete_offset); - - iommu->iommu_ctxflush = 0; - - control = upa_readq(iommu->iommu_control); - control |= PSYCHO_IOMMU_CTRL_DENAB; - upa_writeq(control, iommu->iommu_control); - - psycho_iommu_flush(pbm); - - /* Leave diag mode enabled for full-flushing done in pci_iommu.c */ - err = iommu_table_init(iommu, tsbsize * 1024 * 8, - dvma_offset, dma_mask, pbm->numa_node); - if (err) - return err; - - upa_writeq(__pa(iommu->page_table), iommu->iommu_tsbbase); - - control = upa_readq(iommu->iommu_control); - control &= ~(PSYCHO_IOMMU_CTRL_TSBSZ | PSYCHO_IOMMU_CTRL_TBWSZ); - control |= PSYCHO_IOMMU_CTRL_ENAB; - - switch (tsbsize) { - case 64: - control |= PSYCHO_IOMMU_TSBSZ_64K; - break; - case 128: - control |= PSYCHO_IOMMU_TSBSZ_128K; - break; - default: - return -EINVAL; - } - - upa_writeq(control, iommu->iommu_control); - - return 0; - -} - -void psycho_pbm_init_common(struct pci_pbm_info *pbm, struct of_device *op, - const char *chip_name, int chip_type) -{ - struct device_node *dp = op->node; - - pbm->name = dp->full_name; - pbm->numa_node = -1; - pbm->chip_type = chip_type; - pbm->chip_version = of_getintprop_default(dp, "version#", 0); - pbm->chip_revision = of_getintprop_default(dp, "module-revision#", 0); - pbm->op = op; - pbm->pci_ops = &sun4u_pci_ops; - pbm->config_space_reg_bits = 8; - pbm->index = pci_num_pbms++; - pci_get_pbm_props(pbm); - pci_determine_mem_io_space(pbm); - - printk(KERN_INFO "%s: %s PCI Bus Module ver[%x:%x]\n", - pbm->name, chip_name, - pbm->chip_version, pbm->chip_revision); -} diff --git a/arch/sparc64/kernel/psycho_common.h b/arch/sparc64/kernel/psycho_common.h deleted file mode 100644 index 092c278ef28d..000000000000 --- a/arch/sparc64/kernel/psycho_common.h +++ /dev/null @@ -1,48 +0,0 @@ -#ifndef _PSYCHO_COMMON_H -#define _PSYCHO_COMMON_H - -/* U2P Programmer's Manual, page 13-55, configuration space - * address format: - * - * 32 24 23 16 15 11 10 8 7 2 1 0 - * --------------------------------------------------------- - * |0 0 0 0 0 0 0 0 1| bus | device | function | reg | 0 0 | - * --------------------------------------------------------- - */ -#define PSYCHO_CONFIG_BASE(PBM) \ - ((PBM)->config_space | (1UL << 24)) -#define PSYCHO_CONFIG_ENCODE(BUS, DEVFN, REG) \ - (((unsigned long)(BUS) << 16) | \ - ((unsigned long)(DEVFN) << 8) | \ - ((unsigned long)(REG))) - -static inline void *psycho_pci_config_mkaddr(struct pci_pbm_info *pbm, - unsigned char bus, - unsigned int devfn, - int where) -{ - return (void *) - (PSYCHO_CONFIG_BASE(pbm) | - PSYCHO_CONFIG_ENCODE(bus, devfn, where)); -} - -enum psycho_error_type { - UE_ERR, CE_ERR, PCI_ERR -}; - -extern void psycho_check_iommu_error(struct pci_pbm_info *pbm, - unsigned long afsr, - unsigned long afar, - enum psycho_error_type type); - -extern irqreturn_t psycho_pcierr_intr(int irq, void *dev_id); - -extern int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize, - u32 dvma_offset, u32 dma_mask, - unsigned long write_complete_offset); - -extern void psycho_pbm_init_common(struct pci_pbm_info *pbm, - struct of_device *op, - const char *chip_name, int chip_type); - -#endif /* _PSYCHO_COMMON_H */ diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c deleted file mode 100644 index a941c610e7ce..000000000000 --- a/arch/sparc64/kernel/ptrace.c +++ /dev/null @@ -1,1090 +0,0 @@ -/* ptrace.c: Sparc process tracing support. - * - * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net) - * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - * - * Based upon code written by Ross Biro, Linus Torvalds, Bob Manson, - * and David Mosberger. - * - * Added Linux support -miguel (weird, eh?, the original code was meant - * to emulate SunOS). - */ - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/errno.h> -#include <linux/ptrace.h> -#include <linux/user.h> -#include <linux/smp.h> -#include <linux/smp_lock.h> -#include <linux/security.h> -#include <linux/seccomp.h> -#include <linux/audit.h> -#include <linux/signal.h> -#include <linux/regset.h> -#include <linux/tracehook.h> -#include <linux/compat.h> -#include <linux/elf.h> - -#include <asm/asi.h> -#include <asm/pgtable.h> -#include <asm/system.h> -#include <asm/uaccess.h> -#include <asm/psrcompat.h> -#include <asm/visasm.h> -#include <asm/spitfire.h> -#include <asm/page.h> -#include <asm/cpudata.h> -#include <asm/cacheflush.h> - -#include "entry.h" - -/* #define ALLOW_INIT_TRACING */ - -/* - * Called by kernel/ptrace.c when detaching.. - * - * Make sure single step bits etc are not set. - */ -void ptrace_disable(struct task_struct *child) -{ - /* nothing to do */ -} - -/* To get the necessary page struct, access_process_vm() first calls - * get_user_pages(). This has done a flush_dcache_page() on the - * accessed page. Then our caller (copy_{to,from}_user_page()) did - * to memcpy to read/write the data from that page. - * - * Now, the only thing we have to do is: - * 1) flush the D-cache if it's possible than an illegal alias - * has been created - * 2) flush the I-cache if this is pre-cheetah and we did a write - */ -void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, - unsigned long uaddr, void *kaddr, - unsigned long len, int write) -{ - BUG_ON(len > PAGE_SIZE); - - if (tlb_type == hypervisor) - return; - - preempt_disable(); - -#ifdef DCACHE_ALIASING_POSSIBLE - /* If bit 13 of the kernel address we used to access the - * user page is the same as the virtual address that page - * is mapped to in the user's address space, we can skip the - * D-cache flush. - */ - if ((uaddr ^ (unsigned long) kaddr) & (1UL << 13)) { - unsigned long start = __pa(kaddr); - unsigned long end = start + len; - unsigned long dcache_line_size; - - dcache_line_size = local_cpu_data().dcache_line_size; - - if (tlb_type == spitfire) { - for (; start < end; start += dcache_line_size) - spitfire_put_dcache_tag(start & 0x3fe0, 0x0); - } else { - start &= ~(dcache_line_size - 1); - for (; start < end; start += dcache_line_size) - __asm__ __volatile__( - "stxa %%g0, [%0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (start), - "i" (ASI_DCACHE_INVALIDATE)); - } - } -#endif - if (write && tlb_type == spitfire) { - unsigned long start = (unsigned long) kaddr; - unsigned long end = start + len; - unsigned long icache_line_size; - - icache_line_size = local_cpu_data().icache_line_size; - - for (; start < end; start += icache_line_size) - flushi(start); - } - - preempt_enable(); -} - -static int get_from_target(struct task_struct *target, unsigned long uaddr, - void *kbuf, int len) -{ - if (target == current) { - if (copy_from_user(kbuf, (void __user *) uaddr, len)) - return -EFAULT; - } else { - int len2 = access_process_vm(target, uaddr, kbuf, len, 0); - if (len2 != len) - return -EFAULT; - } - return 0; -} - -static int set_to_target(struct task_struct *target, unsigned long uaddr, - void *kbuf, int len) -{ - if (target == current) { - if (copy_to_user((void __user *) uaddr, kbuf, len)) - return -EFAULT; - } else { - int len2 = access_process_vm(target, uaddr, kbuf, len, 1); - if (len2 != len) - return -EFAULT; - } - return 0; -} - -static int regwindow64_get(struct task_struct *target, - const struct pt_regs *regs, - struct reg_window *wbuf) -{ - unsigned long rw_addr = regs->u_regs[UREG_I6]; - - if (test_tsk_thread_flag(current, TIF_32BIT)) { - struct reg_window32 win32; - int i; - - if (get_from_target(target, rw_addr, &win32, sizeof(win32))) - return -EFAULT; - for (i = 0; i < 8; i++) - wbuf->locals[i] = win32.locals[i]; - for (i = 0; i < 8; i++) - wbuf->ins[i] = win32.ins[i]; - } else { - rw_addr += STACK_BIAS; - if (get_from_target(target, rw_addr, wbuf, sizeof(*wbuf))) - return -EFAULT; - } - - return 0; -} - -static int regwindow64_set(struct task_struct *target, - const struct pt_regs *regs, - struct reg_window *wbuf) -{ - unsigned long rw_addr = regs->u_regs[UREG_I6]; - - if (test_tsk_thread_flag(current, TIF_32BIT)) { - struct reg_window32 win32; - int i; - - for (i = 0; i < 8; i++) - win32.locals[i] = wbuf->locals[i]; - for (i = 0; i < 8; i++) - win32.ins[i] = wbuf->ins[i]; - - if (set_to_target(target, rw_addr, &win32, sizeof(win32))) - return -EFAULT; - } else { - rw_addr += STACK_BIAS; - if (set_to_target(target, rw_addr, wbuf, sizeof(*wbuf))) - return -EFAULT; - } - - return 0; -} - -enum sparc_regset { - REGSET_GENERAL, - REGSET_FP, -}; - -static int genregs64_get(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - void *kbuf, void __user *ubuf) -{ - const struct pt_regs *regs = task_pt_regs(target); - int ret; - - if (target == current) - flushw_user(); - - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - regs->u_regs, - 0, 16 * sizeof(u64)); - if (!ret && count && pos < (32 * sizeof(u64))) { - struct reg_window window; - - if (regwindow64_get(target, regs, &window)) - return -EFAULT; - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &window, - 16 * sizeof(u64), - 32 * sizeof(u64)); - } - - if (!ret) { - /* TSTATE, TPC, TNPC */ - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - ®s->tstate, - 32 * sizeof(u64), - 35 * sizeof(u64)); - } - - if (!ret) { - unsigned long y = regs->y; - - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &y, - 35 * sizeof(u64), - 36 * sizeof(u64)); - } - - if (!ret) { - ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, - 36 * sizeof(u64), -1); - - } - return ret; -} - -static int genregs64_set(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf) -{ - struct pt_regs *regs = task_pt_regs(target); - int ret; - - if (target == current) - flushw_user(); - - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - regs->u_regs, - 0, 16 * sizeof(u64)); - if (!ret && count && pos < (32 * sizeof(u64))) { - struct reg_window window; - - if (regwindow64_get(target, regs, &window)) - return -EFAULT; - - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &window, - 16 * sizeof(u64), - 32 * sizeof(u64)); - - if (!ret && - regwindow64_set(target, regs, &window)) - return -EFAULT; - } - - if (!ret && count > 0) { - unsigned long tstate; - - /* TSTATE */ - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &tstate, - 32 * sizeof(u64), - 33 * sizeof(u64)); - if (!ret) { - /* Only the condition codes and the "in syscall" - * state can be modified in the %tstate register. - */ - tstate &= (TSTATE_ICC | TSTATE_XCC | TSTATE_SYSCALL); - regs->tstate &= ~(TSTATE_ICC | TSTATE_XCC | TSTATE_SYSCALL); - regs->tstate |= tstate; - } - } - - if (!ret) { - /* TPC, TNPC */ - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - ®s->tpc, - 33 * sizeof(u64), - 35 * sizeof(u64)); - } - - if (!ret) { - unsigned long y; - - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &y, - 35 * sizeof(u64), - 36 * sizeof(u64)); - if (!ret) - regs->y = y; - } - - if (!ret) - ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - 36 * sizeof(u64), -1); - - return ret; -} - -static int fpregs64_get(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - void *kbuf, void __user *ubuf) -{ - const unsigned long *fpregs = task_thread_info(target)->fpregs; - unsigned long fprs, fsr, gsr; - int ret; - - if (target == current) - save_and_clear_fpu(); - - fprs = task_thread_info(target)->fpsaved[0]; - - if (fprs & FPRS_DL) - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - fpregs, - 0, 16 * sizeof(u64)); - else - ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, - 0, - 16 * sizeof(u64)); - - if (!ret) { - if (fprs & FPRS_DU) - ret = user_regset_copyout(&pos, &count, - &kbuf, &ubuf, - fpregs + 16, - 16 * sizeof(u64), - 32 * sizeof(u64)); - else - ret = user_regset_copyout_zero(&pos, &count, - &kbuf, &ubuf, - 16 * sizeof(u64), - 32 * sizeof(u64)); - } - - if (fprs & FPRS_FEF) { - fsr = task_thread_info(target)->xfsr[0]; - gsr = task_thread_info(target)->gsr[0]; - } else { - fsr = gsr = 0; - } - - if (!ret) - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &fsr, - 32 * sizeof(u64), - 33 * sizeof(u64)); - if (!ret) - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &gsr, - 33 * sizeof(u64), - 34 * sizeof(u64)); - if (!ret) - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &fprs, - 34 * sizeof(u64), - 35 * sizeof(u64)); - - if (!ret) - ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, - 35 * sizeof(u64), -1); - - return ret; -} - -static int fpregs64_set(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf) -{ - unsigned long *fpregs = task_thread_info(target)->fpregs; - unsigned long fprs; - int ret; - - if (target == current) - save_and_clear_fpu(); - - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - fpregs, - 0, 32 * sizeof(u64)); - if (!ret) - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - task_thread_info(target)->xfsr, - 32 * sizeof(u64), - 33 * sizeof(u64)); - if (!ret) - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - task_thread_info(target)->gsr, - 33 * sizeof(u64), - 34 * sizeof(u64)); - - fprs = task_thread_info(target)->fpsaved[0]; - if (!ret && count > 0) { - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &fprs, - 34 * sizeof(u64), - 35 * sizeof(u64)); - } - - fprs |= (FPRS_FEF | FPRS_DL | FPRS_DU); - task_thread_info(target)->fpsaved[0] = fprs; - - if (!ret) - ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - 35 * sizeof(u64), -1); - return ret; -} - -static const struct user_regset sparc64_regsets[] = { - /* Format is: - * G0 --> G7 - * O0 --> O7 - * L0 --> L7 - * I0 --> I7 - * TSTATE, TPC, TNPC, Y - */ - [REGSET_GENERAL] = { - .core_note_type = NT_PRSTATUS, - .n = 36, - .size = sizeof(u64), .align = sizeof(u64), - .get = genregs64_get, .set = genregs64_set - }, - /* Format is: - * F0 --> F63 - * FSR - * GSR - * FPRS - */ - [REGSET_FP] = { - .core_note_type = NT_PRFPREG, - .n = 35, - .size = sizeof(u64), .align = sizeof(u64), - .get = fpregs64_get, .set = fpregs64_set - }, -}; - -static const struct user_regset_view user_sparc64_view = { - .name = "sparc64", .e_machine = EM_SPARCV9, - .regsets = sparc64_regsets, .n = ARRAY_SIZE(sparc64_regsets) -}; - -#ifdef CONFIG_COMPAT -static int genregs32_get(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - void *kbuf, void __user *ubuf) -{ - const struct pt_regs *regs = task_pt_regs(target); - compat_ulong_t __user *reg_window; - compat_ulong_t *k = kbuf; - compat_ulong_t __user *u = ubuf; - compat_ulong_t reg; - - if (target == current) - flushw_user(); - - pos /= sizeof(reg); - count /= sizeof(reg); - - if (kbuf) { - for (; count > 0 && pos < 16; count--) - *k++ = regs->u_regs[pos++]; - - reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6]; - if (target == current) { - for (; count > 0 && pos < 32; count--) { - if (get_user(*k++, ®_window[pos++])) - return -EFAULT; - } - } else { - for (; count > 0 && pos < 32; count--) { - if (access_process_vm(target, - (unsigned long) - ®_window[pos], - k, sizeof(*k), 0) - != sizeof(*k)) - return -EFAULT; - k++; - pos++; - } - } - } else { - for (; count > 0 && pos < 16; count--) { - if (put_user((compat_ulong_t) regs->u_regs[pos++], u++)) - return -EFAULT; - } - - reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6]; - if (target == current) { - for (; count > 0 && pos < 32; count--) { - if (get_user(reg, ®_window[pos++]) || - put_user(reg, u++)) - return -EFAULT; - } - } else { - for (; count > 0 && pos < 32; count--) { - if (access_process_vm(target, - (unsigned long) - ®_window[pos], - ®, sizeof(reg), 0) - != sizeof(reg)) - return -EFAULT; - if (access_process_vm(target, - (unsigned long) u, - ®, sizeof(reg), 1) - != sizeof(reg)) - return -EFAULT; - pos++; - u++; - } - } - } - while (count > 0) { - switch (pos) { - case 32: /* PSR */ - reg = tstate_to_psr(regs->tstate); - break; - case 33: /* PC */ - reg = regs->tpc; - break; - case 34: /* NPC */ - reg = regs->tnpc; - break; - case 35: /* Y */ - reg = regs->y; - break; - case 36: /* WIM */ - case 37: /* TBR */ - reg = 0; - break; - default: - goto finish; - } - - if (kbuf) - *k++ = reg; - else if (put_user(reg, u++)) - return -EFAULT; - pos++; - count--; - } -finish: - pos *= sizeof(reg); - count *= sizeof(reg); - - return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, - 38 * sizeof(reg), -1); -} - -static int genregs32_set(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf) -{ - struct pt_regs *regs = task_pt_regs(target); - compat_ulong_t __user *reg_window; - const compat_ulong_t *k = kbuf; - const compat_ulong_t __user *u = ubuf; - compat_ulong_t reg; - - if (target == current) - flushw_user(); - - pos /= sizeof(reg); - count /= sizeof(reg); - - if (kbuf) { - for (; count > 0 && pos < 16; count--) - regs->u_regs[pos++] = *k++; - - reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6]; - if (target == current) { - for (; count > 0 && pos < 32; count--) { - if (put_user(*k++, ®_window[pos++])) - return -EFAULT; - } - } else { - for (; count > 0 && pos < 32; count--) { - if (access_process_vm(target, - (unsigned long) - ®_window[pos], - (void *) k, - sizeof(*k), 1) - != sizeof(*k)) - return -EFAULT; - k++; - pos++; - } - } - } else { - for (; count > 0 && pos < 16; count--) { - if (get_user(reg, u++)) - return -EFAULT; - regs->u_regs[pos++] = reg; - } - - reg_window = (compat_ulong_t __user *) regs->u_regs[UREG_I6]; - if (target == current) { - for (; count > 0 && pos < 32; count--) { - if (get_user(reg, u++) || - put_user(reg, ®_window[pos++])) - return -EFAULT; - } - } else { - for (; count > 0 && pos < 32; count--) { - if (access_process_vm(target, - (unsigned long) - u, - ®, sizeof(reg), 0) - != sizeof(reg)) - return -EFAULT; - if (access_process_vm(target, - (unsigned long) - ®_window[pos], - ®, sizeof(reg), 1) - != sizeof(reg)) - return -EFAULT; - pos++; - u++; - } - } - } - while (count > 0) { - unsigned long tstate; - - if (kbuf) - reg = *k++; - else if (get_user(reg, u++)) - return -EFAULT; - - switch (pos) { - case 32: /* PSR */ - tstate = regs->tstate; - tstate &= ~(TSTATE_ICC | TSTATE_XCC | TSTATE_SYSCALL); - tstate |= psr_to_tstate_icc(reg); - if (reg & PSR_SYSCALL) - tstate |= TSTATE_SYSCALL; - regs->tstate = tstate; - break; - case 33: /* PC */ - regs->tpc = reg; - break; - case 34: /* NPC */ - regs->tnpc = reg; - break; - case 35: /* Y */ - regs->y = reg; - break; - case 36: /* WIM */ - case 37: /* TBR */ - break; - default: - goto finish; - } - - pos++; - count--; - } -finish: - pos *= sizeof(reg); - count *= sizeof(reg); - - return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - 38 * sizeof(reg), -1); -} - -static int fpregs32_get(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - void *kbuf, void __user *ubuf) -{ - const unsigned long *fpregs = task_thread_info(target)->fpregs; - compat_ulong_t enabled; - unsigned long fprs; - compat_ulong_t fsr; - int ret = 0; - - if (target == current) - save_and_clear_fpu(); - - fprs = task_thread_info(target)->fpsaved[0]; - if (fprs & FPRS_FEF) { - fsr = task_thread_info(target)->xfsr[0]; - enabled = 1; - } else { - fsr = 0; - enabled = 0; - } - - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - fpregs, - 0, 32 * sizeof(u32)); - - if (!ret) - ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, - 32 * sizeof(u32), - 33 * sizeof(u32)); - if (!ret) - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &fsr, - 33 * sizeof(u32), - 34 * sizeof(u32)); - - if (!ret) { - compat_ulong_t val; - - val = (enabled << 8) | (8 << 16); - ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, - &val, - 34 * sizeof(u32), - 35 * sizeof(u32)); - } - - if (!ret) - ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf, - 35 * sizeof(u32), -1); - - return ret; -} - -static int fpregs32_set(struct task_struct *target, - const struct user_regset *regset, - unsigned int pos, unsigned int count, - const void *kbuf, const void __user *ubuf) -{ - unsigned long *fpregs = task_thread_info(target)->fpregs; - unsigned long fprs; - int ret; - - if (target == current) - save_and_clear_fpu(); - - fprs = task_thread_info(target)->fpsaved[0]; - - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - fpregs, - 0, 32 * sizeof(u32)); - if (!ret) - user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - 32 * sizeof(u32), - 33 * sizeof(u32)); - if (!ret && count > 0) { - compat_ulong_t fsr; - unsigned long val; - - ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, - &fsr, - 33 * sizeof(u32), - 34 * sizeof(u32)); - if (!ret) { - val = task_thread_info(target)->xfsr[0]; - val &= 0xffffffff00000000UL; - val |= fsr; - task_thread_info(target)->xfsr[0] = val; - } - } - - fprs |= (FPRS_FEF | FPRS_DL); - task_thread_info(target)->fpsaved[0] = fprs; - - if (!ret) - ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf, - 34 * sizeof(u32), -1); - return ret; -} - -static const struct user_regset sparc32_regsets[] = { - /* Format is: - * G0 --> G7 - * O0 --> O7 - * L0 --> L7 - * I0 --> I7 - * PSR, PC, nPC, Y, WIM, TBR - */ - [REGSET_GENERAL] = { - .core_note_type = NT_PRSTATUS, - .n = 38, - .size = sizeof(u32), .align = sizeof(u32), - .get = genregs32_get, .set = genregs32_set - }, - /* Format is: - * F0 --> F31 - * empty 32-bit word - * FSR (32--bit word) - * FPU QUEUE COUNT (8-bit char) - * FPU QUEUE ENTRYSIZE (8-bit char) - * FPU ENABLED (8-bit char) - * empty 8-bit char - * FPU QUEUE (64 32-bit ints) - */ - [REGSET_FP] = { - .core_note_type = NT_PRFPREG, - .n = 99, - .size = sizeof(u32), .align = sizeof(u32), - .get = fpregs32_get, .set = fpregs32_set - }, -}; - -static const struct user_regset_view user_sparc32_view = { - .name = "sparc", .e_machine = EM_SPARC, - .regsets = sparc32_regsets, .n = ARRAY_SIZE(sparc32_regsets) -}; -#endif /* CONFIG_COMPAT */ - -const struct user_regset_view *task_user_regset_view(struct task_struct *task) -{ -#ifdef CONFIG_COMPAT - if (test_tsk_thread_flag(task, TIF_32BIT)) - return &user_sparc32_view; -#endif - return &user_sparc64_view; -} - -#ifdef CONFIG_COMPAT -struct compat_fps { - unsigned int regs[32]; - unsigned int fsr; - unsigned int flags; - unsigned int extra; - unsigned int fpqd; - struct compat_fq { - unsigned int insnaddr; - unsigned int insn; - } fpq[16]; -}; - -long compat_arch_ptrace(struct task_struct *child, compat_long_t request, - compat_ulong_t caddr, compat_ulong_t cdata) -{ - const struct user_regset_view *view = task_user_regset_view(current); - compat_ulong_t caddr2 = task_pt_regs(current)->u_regs[UREG_I4]; - struct pt_regs32 __user *pregs; - struct compat_fps __user *fps; - unsigned long addr2 = caddr2; - unsigned long addr = caddr; - unsigned long data = cdata; - int ret; - - pregs = (struct pt_regs32 __user *) addr; - fps = (struct compat_fps __user *) addr; - - switch (request) { - case PTRACE_PEEKUSR: - ret = (addr != 0) ? -EIO : 0; - break; - - case PTRACE_GETREGS: - ret = copy_regset_to_user(child, view, REGSET_GENERAL, - 32 * sizeof(u32), - 4 * sizeof(u32), - &pregs->psr); - if (!ret) - ret = copy_regset_to_user(child, view, REGSET_GENERAL, - 1 * sizeof(u32), - 15 * sizeof(u32), - &pregs->u_regs[0]); - break; - - case PTRACE_SETREGS: - ret = copy_regset_from_user(child, view, REGSET_GENERAL, - 32 * sizeof(u32), - 4 * sizeof(u32), - &pregs->psr); - if (!ret) - ret = copy_regset_from_user(child, view, REGSET_GENERAL, - 1 * sizeof(u32), - 15 * sizeof(u32), - &pregs->u_regs[0]); - break; - - case PTRACE_GETFPREGS: - ret = copy_regset_to_user(child, view, REGSET_FP, - 0 * sizeof(u32), - 32 * sizeof(u32), - &fps->regs[0]); - if (!ret) - ret = copy_regset_to_user(child, view, REGSET_FP, - 33 * sizeof(u32), - 1 * sizeof(u32), - &fps->fsr); - if (!ret) { - if (__put_user(0, &fps->flags) || - __put_user(0, &fps->extra) || - __put_user(0, &fps->fpqd) || - clear_user(&fps->fpq[0], 32 * sizeof(unsigned int))) - ret = -EFAULT; - } - break; - - case PTRACE_SETFPREGS: - ret = copy_regset_from_user(child, view, REGSET_FP, - 0 * sizeof(u32), - 32 * sizeof(u32), - &fps->regs[0]); - if (!ret) - ret = copy_regset_from_user(child, view, REGSET_FP, - 33 * sizeof(u32), - 1 * sizeof(u32), - &fps->fsr); - break; - - case PTRACE_READTEXT: - case PTRACE_READDATA: - ret = ptrace_readdata(child, addr, - (char __user *)addr2, data); - if (ret == data) - ret = 0; - else if (ret >= 0) - ret = -EIO; - break; - - case PTRACE_WRITETEXT: - case PTRACE_WRITEDATA: - ret = ptrace_writedata(child, (char __user *) addr2, - addr, data); - if (ret == data) - ret = 0; - else if (ret >= 0) - ret = -EIO; - break; - - default: - if (request == PTRACE_SPARC_DETACH) - request = PTRACE_DETACH; - ret = compat_ptrace_request(child, request, addr, data); - break; - } - - return ret; -} -#endif /* CONFIG_COMPAT */ - -struct fps { - unsigned int regs[64]; - unsigned long fsr; -}; - -long arch_ptrace(struct task_struct *child, long request, long addr, long data) -{ - const struct user_regset_view *view = task_user_regset_view(current); - unsigned long addr2 = task_pt_regs(current)->u_regs[UREG_I4]; - struct pt_regs __user *pregs; - struct fps __user *fps; - int ret; - - pregs = (struct pt_regs __user *) (unsigned long) addr; - fps = (struct fps __user *) (unsigned long) addr; - - switch (request) { - case PTRACE_PEEKUSR: - ret = (addr != 0) ? -EIO : 0; - break; - - case PTRACE_GETREGS64: - ret = copy_regset_to_user(child, view, REGSET_GENERAL, - 1 * sizeof(u64), - 15 * sizeof(u64), - &pregs->u_regs[0]); - if (!ret) { - /* XXX doesn't handle 'y' register correctly XXX */ - ret = copy_regset_to_user(child, view, REGSET_GENERAL, - 32 * sizeof(u64), - 4 * sizeof(u64), - &pregs->tstate); - } - break; - - case PTRACE_SETREGS64: - ret = copy_regset_from_user(child, view, REGSET_GENERAL, - 1 * sizeof(u64), - 15 * sizeof(u64), - &pregs->u_regs[0]); - if (!ret) { - /* XXX doesn't handle 'y' register correctly XXX */ - ret = copy_regset_from_user(child, view, REGSET_GENERAL, - 32 * sizeof(u64), - 4 * sizeof(u64), - &pregs->tstate); - } - break; - - case PTRACE_GETFPREGS64: - ret = copy_regset_to_user(child, view, REGSET_FP, - 0 * sizeof(u64), - 33 * sizeof(u64), - fps); - break; - - case PTRACE_SETFPREGS64: - ret = copy_regset_from_user(child, view, REGSET_FP, - 0 * sizeof(u64), - 33 * sizeof(u64), - fps); - break; - - case PTRACE_READTEXT: - case PTRACE_READDATA: - ret = ptrace_readdata(child, addr, - (char __user *)addr2, data); - if (ret == data) - ret = 0; - else if (ret >= 0) - ret = -EIO; - break; - - case PTRACE_WRITETEXT: - case PTRACE_WRITEDATA: - ret = ptrace_writedata(child, (char __user *) addr2, - addr, data); - if (ret == data) - ret = 0; - else if (ret >= 0) - ret = -EIO; - break; - - default: - if (request == PTRACE_SPARC_DETACH) - request = PTRACE_DETACH; - ret = ptrace_request(child, request, addr, data); - break; - } - - return ret; -} - -asmlinkage int syscall_trace_enter(struct pt_regs *regs) -{ - int ret = 0; - - /* do the secure computing check first */ - secure_computing(regs->u_regs[UREG_G1]); - - if (test_thread_flag(TIF_SYSCALL_TRACE)) - ret = tracehook_report_syscall_entry(regs); - - if (unlikely(current->audit_context) && !ret) - audit_syscall_entry((test_thread_flag(TIF_32BIT) ? - AUDIT_ARCH_SPARC : - AUDIT_ARCH_SPARC64), - regs->u_regs[UREG_G1], - regs->u_regs[UREG_I0], - regs->u_regs[UREG_I1], - regs->u_regs[UREG_I2], - regs->u_regs[UREG_I3]); - - return ret; -} - -asmlinkage void syscall_trace_leave(struct pt_regs *regs) -{ - if (unlikely(current->audit_context)) { - unsigned long tstate = regs->tstate; - int result = AUDITSC_SUCCESS; - - if (unlikely(tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) - result = AUDITSC_FAILURE; - - audit_syscall_exit(result, regs->u_regs[UREG_I0]); - } - - if (test_thread_flag(TIF_SYSCALL_TRACE)) - tracehook_report_syscall_exit(regs, 0); -} diff --git a/arch/sparc64/kernel/reboot.c b/arch/sparc64/kernel/reboot.c deleted file mode 100644 index ef89d3d69748..000000000000 --- a/arch/sparc64/kernel/reboot.c +++ /dev/null @@ -1,53 +0,0 @@ -/* reboot.c: reboot/shutdown/halt/poweroff handling - * - * Copyright (C) 2008 David S. Miller <davem@davemloft.net> - */ -#include <linux/kernel.h> -#include <linux/reboot.h> -#include <linux/module.h> -#include <linux/pm.h> - -#include <asm/system.h> -#include <asm/oplib.h> -#include <asm/prom.h> - -/* sysctl - toggle power-off restriction for serial console - * systems in machine_power_off() - */ -int scons_pwroff = 1; - -/* This isn't actually used, it exists merely to satisfy the - * reference in kernel/sys.c - */ -void (*pm_power_off)(void) = machine_power_off; -EXPORT_SYMBOL(pm_power_off); - -void machine_power_off(void) -{ - if (strcmp(of_console_device->type, "serial") || scons_pwroff) - prom_halt_power_off(); - - prom_halt(); -} - -void machine_halt(void) -{ - prom_halt(); - panic("Halt failed!"); -} - -void machine_restart(char *cmd) -{ - char *p; - - p = strchr(reboot_command, '\n'); - if (p) - *p = 0; - if (cmd) - prom_reboot(cmd); - if (*reboot_command) - prom_reboot(reboot_command); - prom_reboot(""); - panic("Reboot failed!"); -} - diff --git a/arch/sparc64/kernel/rtrap.S b/arch/sparc64/kernel/rtrap.S deleted file mode 100644 index 97a993c1f7f3..000000000000 --- a/arch/sparc64/kernel/rtrap.S +++ /dev/null @@ -1,438 +0,0 @@ -/* - * rtrap.S: Preparing for return from trap on Sparc V9. - * - * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) - */ - - -#include <asm/asi.h> -#include <asm/pstate.h> -#include <asm/ptrace.h> -#include <asm/spitfire.h> -#include <asm/head.h> -#include <asm/visasm.h> -#include <asm/processor.h> - -#define RTRAP_PSTATE (PSTATE_RMO|PSTATE_PEF|PSTATE_PRIV|PSTATE_IE) -#define RTRAP_PSTATE_IRQOFF (PSTATE_RMO|PSTATE_PEF|PSTATE_PRIV) -#define RTRAP_PSTATE_AG_IRQOFF (PSTATE_RMO|PSTATE_PEF|PSTATE_PRIV|PSTATE_AG) - - .text - .align 32 -__handle_softirq: - call do_softirq - nop - ba,a,pt %xcc, __handle_softirq_continue - nop -__handle_preemption: - call schedule - wrpr %g0, RTRAP_PSTATE, %pstate - ba,pt %xcc, __handle_preemption_continue - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - -__handle_user_windows: - call fault_in_user_windows - wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - /* Redo sched+sig checks */ - ldx [%g6 + TI_FLAGS], %l0 - andcc %l0, _TIF_NEED_RESCHED, %g0 - - be,pt %xcc, 1f - nop - call schedule - wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - ldx [%g6 + TI_FLAGS], %l0 - -1: andcc %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0 - be,pt %xcc, __handle_user_windows_continue - nop - mov %l5, %o1 - add %sp, PTREGS_OFF, %o0 - mov %l0, %o2 - - call do_notify_resume - wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - /* Signal delivery can modify pt_regs tstate, so we must - * reload it. - */ - ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 - sethi %hi(0xf << 20), %l4 - and %l1, %l4, %l4 - ba,pt %xcc, __handle_user_windows_continue - - andn %l1, %l4, %l1 -__handle_perfctrs: - call update_perfctrs - wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - ldub [%g6 + TI_WSAVED], %o2 - brz,pt %o2, 1f - nop - /* Redo userwin+sched+sig checks */ - call fault_in_user_windows - - wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - ldx [%g6 + TI_FLAGS], %l0 - andcc %l0, _TIF_NEED_RESCHED, %g0 - be,pt %xcc, 1f - - nop - call schedule - wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - ldx [%g6 + TI_FLAGS], %l0 -1: andcc %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0 - - be,pt %xcc, __handle_perfctrs_continue - sethi %hi(TSTATE_PEF), %o0 - mov %l5, %o1 - add %sp, PTREGS_OFF, %o0 - mov %l0, %o2 - call do_notify_resume - - wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - /* Signal delivery can modify pt_regs tstate, so we must - * reload it. - */ - ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 - sethi %hi(0xf << 20), %l4 - and %l1, %l4, %l4 - andn %l1, %l4, %l1 - ba,pt %xcc, __handle_perfctrs_continue - - sethi %hi(TSTATE_PEF), %o0 -__handle_userfpu: - rd %fprs, %l5 - andcc %l5, FPRS_FEF, %g0 - sethi %hi(TSTATE_PEF), %o0 - be,a,pn %icc, __handle_userfpu_continue - andn %l1, %o0, %l1 - ba,a,pt %xcc, __handle_userfpu_continue - -__handle_signal: - mov %l5, %o1 - add %sp, PTREGS_OFF, %o0 - mov %l0, %o2 - call do_notify_resume - wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - - /* Signal delivery can modify pt_regs tstate, so we must - * reload it. - */ - ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 - sethi %hi(0xf << 20), %l4 - and %l1, %l4, %l4 - ba,pt %xcc, __handle_signal_continue - andn %l1, %l4, %l1 - - .align 64 - .globl rtrap_irq, rtrap, irqsz_patchme, rtrap_xcall -rtrap_irq: -rtrap: -#ifndef CONFIG_SMP - sethi %hi(per_cpu____cpu_data), %l0 - lduw [%l0 + %lo(per_cpu____cpu_data)], %l1 -#else - sethi %hi(per_cpu____cpu_data), %l0 - or %l0, %lo(per_cpu____cpu_data), %l0 - lduw [%l0 + %g5], %l1 -#endif - cmp %l1, 0 - - /* mm/ultra.S:xcall_report_regs KNOWS about this load. */ - bne,pn %icc, __handle_softirq - ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 -__handle_softirq_continue: -rtrap_xcall: - sethi %hi(0xf << 20), %l4 - and %l1, %l4, %l4 - andn %l1, %l4, %l1 - srl %l4, 20, %l4 -#ifdef CONFIG_TRACE_IRQFLAGS - brnz,pn %l4, rtrap_no_irq_enable - nop - call trace_hardirqs_on - nop - wrpr %l4, %pil -rtrap_no_irq_enable: -#endif - andcc %l1, TSTATE_PRIV, %l3 - bne,pn %icc, to_kernel - nop - - /* We must hold IRQs off and atomically test schedule+signal - * state, then hold them off all the way back to userspace. - * If we are returning to kernel, none of this matters. Note - * that we are disabling interrupts via PSTATE_IE, not using - * %pil. - * - * If we do not do this, there is a window where we would do - * the tests, later the signal/resched event arrives but we do - * not process it since we are still in kernel mode. It would - * take until the next local IRQ before the signal/resched - * event would be handled. - * - * This also means that if we have to deal with performance - * counters or user windows, we have to redo all of these - * sched+signal checks with IRQs disabled. - */ -to_user: wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - wrpr 0, %pil -__handle_preemption_continue: - ldx [%g6 + TI_FLAGS], %l0 - sethi %hi(_TIF_USER_WORK_MASK), %o0 - or %o0, %lo(_TIF_USER_WORK_MASK), %o0 - andcc %l0, %o0, %g0 - sethi %hi(TSTATE_PEF), %o0 - be,pt %xcc, user_nowork - andcc %l1, %o0, %g0 - andcc %l0, _TIF_NEED_RESCHED, %g0 - bne,pn %xcc, __handle_preemption - andcc %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0 - bne,pn %xcc, __handle_signal -__handle_signal_continue: - ldub [%g6 + TI_WSAVED], %o2 - brnz,pn %o2, __handle_user_windows - nop -__handle_user_windows_continue: - ldx [%g6 + TI_FLAGS], %l5 - andcc %l5, _TIF_PERFCTR, %g0 - sethi %hi(TSTATE_PEF), %o0 - bne,pn %xcc, __handle_perfctrs -__handle_perfctrs_continue: - andcc %l1, %o0, %g0 - - /* This fpdepth clear is necessary for non-syscall rtraps only */ -user_nowork: - bne,pn %xcc, __handle_userfpu - stb %g0, [%g6 + TI_FPDEPTH] -__handle_userfpu_continue: - -rt_continue: ldx [%sp + PTREGS_OFF + PT_V9_G1], %g1 - ldx [%sp + PTREGS_OFF + PT_V9_G2], %g2 - - ldx [%sp + PTREGS_OFF + PT_V9_G3], %g3 - ldx [%sp + PTREGS_OFF + PT_V9_G4], %g4 - ldx [%sp + PTREGS_OFF + PT_V9_G5], %g5 - brz,pt %l3, 1f - mov %g6, %l2 - - /* Must do this before thread reg is clobbered below. */ - LOAD_PER_CPU_BASE(%g5, %g6, %i0, %i1, %i2) -1: - ldx [%sp + PTREGS_OFF + PT_V9_G6], %g6 - ldx [%sp + PTREGS_OFF + PT_V9_G7], %g7 - - /* Normal globals are restored, go to trap globals. */ -661: wrpr %g0, RTRAP_PSTATE_AG_IRQOFF, %pstate - nop - .section .sun4v_2insn_patch, "ax" - .word 661b - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - SET_GL(1) - .previous - - mov %l2, %g6 - - ldx [%sp + PTREGS_OFF + PT_V9_I0], %i0 - ldx [%sp + PTREGS_OFF + PT_V9_I1], %i1 - - ldx [%sp + PTREGS_OFF + PT_V9_I2], %i2 - ldx [%sp + PTREGS_OFF + PT_V9_I3], %i3 - ldx [%sp + PTREGS_OFF + PT_V9_I4], %i4 - ldx [%sp + PTREGS_OFF + PT_V9_I5], %i5 - ldx [%sp + PTREGS_OFF + PT_V9_I6], %i6 - ldx [%sp + PTREGS_OFF + PT_V9_I7], %i7 - ldx [%sp + PTREGS_OFF + PT_V9_TPC], %l2 - ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %o2 - - ld [%sp + PTREGS_OFF + PT_V9_Y], %o3 - wr %o3, %g0, %y - wrpr %l4, 0x0, %pil - wrpr %g0, 0x1, %tl - andn %l1, TSTATE_SYSCALL, %l1 - wrpr %l1, %g0, %tstate - wrpr %l2, %g0, %tpc - wrpr %o2, %g0, %tnpc - - brnz,pn %l3, kern_rtt - mov PRIMARY_CONTEXT, %l7 - -661: ldxa [%l7 + %l7] ASI_DMMU, %l0 - .section .sun4v_1insn_patch, "ax" - .word 661b - ldxa [%l7 + %l7] ASI_MMU, %l0 - .previous - - sethi %hi(sparc64_kern_pri_nuc_bits), %l1 - ldx [%l1 + %lo(sparc64_kern_pri_nuc_bits)], %l1 - or %l0, %l1, %l0 - -661: stxa %l0, [%l7] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %l0, [%l7] ASI_MMU - .previous - - sethi %hi(KERNBASE), %l7 - flush %l7 - rdpr %wstate, %l1 - rdpr %otherwin, %l2 - srl %l1, 3, %l1 - - wrpr %l2, %g0, %canrestore - wrpr %l1, %g0, %wstate - brnz,pt %l2, user_rtt_restore - wrpr %g0, %g0, %otherwin - - ldx [%g6 + TI_FLAGS], %g3 - wr %g0, ASI_AIUP, %asi - rdpr %cwp, %g1 - andcc %g3, _TIF_32BIT, %g0 - sub %g1, 1, %g1 - bne,pt %xcc, user_rtt_fill_32bit - wrpr %g1, %cwp - ba,a,pt %xcc, user_rtt_fill_64bit - -user_rtt_fill_fixup: - rdpr %cwp, %g1 - add %g1, 1, %g1 - wrpr %g1, 0x0, %cwp - - rdpr %wstate, %g2 - sll %g2, 3, %g2 - wrpr %g2, 0x0, %wstate - - /* We know %canrestore and %otherwin are both zero. */ - - sethi %hi(sparc64_kern_pri_context), %g2 - ldx [%g2 + %lo(sparc64_kern_pri_context)], %g2 - mov PRIMARY_CONTEXT, %g1 - -661: stxa %g2, [%g1] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %g2, [%g1] ASI_MMU - .previous - - sethi %hi(KERNBASE), %g1 - flush %g1 - - or %g4, FAULT_CODE_WINFIXUP, %g4 - stb %g4, [%g6 + TI_FAULT_CODE] - stx %g5, [%g6 + TI_FAULT_ADDR] - - mov %g6, %l1 - wrpr %g0, 0x0, %tl - -661: nop - .section .sun4v_1insn_patch, "ax" - .word 661b - SET_GL(0) - .previous - - wrpr %g0, RTRAP_PSTATE, %pstate - - mov %l1, %g6 - ldx [%g6 + TI_TASK], %g4 - LOAD_PER_CPU_BASE(%g5, %g6, %g1, %g2, %g3) - call do_sparc64_fault - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - -user_rtt_pre_restore: - add %g1, 1, %g1 - wrpr %g1, 0x0, %cwp - -user_rtt_restore: - restore - rdpr %canrestore, %g1 - wrpr %g1, 0x0, %cleanwin - retry - nop - -kern_rtt: rdpr %canrestore, %g1 - brz,pn %g1, kern_rtt_fill - nop -kern_rtt_restore: - stw %g0, [%sp + PTREGS_OFF + PT_V9_MAGIC] - restore - retry - -to_kernel: -#ifdef CONFIG_PREEMPT - ldsw [%g6 + TI_PRE_COUNT], %l5 - brnz %l5, kern_fpucheck - ldx [%g6 + TI_FLAGS], %l5 - andcc %l5, _TIF_NEED_RESCHED, %g0 - be,pt %xcc, kern_fpucheck - nop - cmp %l4, 0 - bne,pn %xcc, kern_fpucheck - sethi %hi(PREEMPT_ACTIVE), %l6 - stw %l6, [%g6 + TI_PRE_COUNT] - call schedule - nop - ba,pt %xcc, rtrap - stw %g0, [%g6 + TI_PRE_COUNT] -#endif -kern_fpucheck: ldub [%g6 + TI_FPDEPTH], %l5 - brz,pt %l5, rt_continue - srl %l5, 1, %o0 - add %g6, TI_FPSAVED, %l6 - ldub [%l6 + %o0], %l2 - sub %l5, 2, %l5 - - add %g6, TI_GSR, %o1 - andcc %l2, (FPRS_FEF|FPRS_DU), %g0 - be,pt %icc, 2f - and %l2, FPRS_DL, %l6 - andcc %l2, FPRS_FEF, %g0 - be,pn %icc, 5f - sll %o0, 3, %o5 - rd %fprs, %g1 - - wr %g1, FPRS_FEF, %fprs - ldx [%o1 + %o5], %g1 - add %g6, TI_XFSR, %o1 - sll %o0, 8, %o2 - add %g6, TI_FPREGS, %o3 - brz,pn %l6, 1f - add %g6, TI_FPREGS+0x40, %o4 - - membar #Sync - ldda [%o3 + %o2] ASI_BLK_P, %f0 - ldda [%o4 + %o2] ASI_BLK_P, %f16 - membar #Sync -1: andcc %l2, FPRS_DU, %g0 - be,pn %icc, 1f - wr %g1, 0, %gsr - add %o2, 0x80, %o2 - membar #Sync - ldda [%o3 + %o2] ASI_BLK_P, %f32 - ldda [%o4 + %o2] ASI_BLK_P, %f48 -1: membar #Sync - ldx [%o1 + %o5], %fsr -2: stb %l5, [%g6 + TI_FPDEPTH] - ba,pt %xcc, rt_continue - nop -5: wr %g0, FPRS_FEF, %fprs - sll %o0, 8, %o2 - - add %g6, TI_FPREGS+0x80, %o3 - add %g6, TI_FPREGS+0xc0, %o4 - membar #Sync - ldda [%o3 + %o2] ASI_BLK_P, %f32 - ldda [%o4 + %o2] ASI_BLK_P, %f48 - membar #Sync - wr %g0, FPRS_DU, %fprs - ba,pt %xcc, rt_continue - stb %l5, [%g6 + TI_FPDEPTH] diff --git a/arch/sparc64/kernel/sbus.c b/arch/sparc64/kernel/sbus.c deleted file mode 100644 index 2ead310066d1..000000000000 --- a/arch/sparc64/kernel/sbus.c +++ /dev/null @@ -1,674 +0,0 @@ -/* - * sbus.c: UltraSparc SBUS controller support. - * - * Copyright (C) 1999 David S. Miller (davem@redhat.com) - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/spinlock.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/of.h> -#include <linux/of_device.h> - -#include <asm/page.h> -#include <asm/io.h> -#include <asm/upa.h> -#include <asm/cache.h> -#include <asm/dma.h> -#include <asm/irq.h> -#include <asm/prom.h> -#include <asm/oplib.h> -#include <asm/starfire.h> - -#include "iommu_common.h" - -#define MAP_BASE ((u32)0xc0000000) - -/* Offsets from iommu_regs */ -#define SYSIO_IOMMUREG_BASE 0x2400UL -#define IOMMU_CONTROL (0x2400UL - 0x2400UL) /* IOMMU control register */ -#define IOMMU_TSBBASE (0x2408UL - 0x2400UL) /* TSB base address register */ -#define IOMMU_FLUSH (0x2410UL - 0x2400UL) /* IOMMU flush register */ -#define IOMMU_VADIAG (0x4400UL - 0x2400UL) /* SBUS virtual address diagnostic */ -#define IOMMU_TAGCMP (0x4408UL - 0x2400UL) /* TLB tag compare diagnostics */ -#define IOMMU_LRUDIAG (0x4500UL - 0x2400UL) /* IOMMU LRU queue diagnostics */ -#define IOMMU_TAGDIAG (0x4580UL - 0x2400UL) /* TLB tag diagnostics */ -#define IOMMU_DRAMDIAG (0x4600UL - 0x2400UL) /* TLB data RAM diagnostics */ - -#define IOMMU_DRAM_VALID (1UL << 30UL) - -/* Offsets from strbuf_regs */ -#define SYSIO_STRBUFREG_BASE 0x2800UL -#define STRBUF_CONTROL (0x2800UL - 0x2800UL) /* Control */ -#define STRBUF_PFLUSH (0x2808UL - 0x2800UL) /* Page flush/invalidate */ -#define STRBUF_FSYNC (0x2810UL - 0x2800UL) /* Flush synchronization */ -#define STRBUF_DRAMDIAG (0x5000UL - 0x2800UL) /* data RAM diagnostic */ -#define STRBUF_ERRDIAG (0x5400UL - 0x2800UL) /* error status diagnostics */ -#define STRBUF_PTAGDIAG (0x5800UL - 0x2800UL) /* Page tag diagnostics */ -#define STRBUF_LTAGDIAG (0x5900UL - 0x2800UL) /* Line tag diagnostics */ - -#define STRBUF_TAG_VALID 0x02UL - -/* Enable 64-bit DVMA mode for the given device. */ -void sbus_set_sbus64(struct device *dev, int bursts) -{ - struct iommu *iommu = dev->archdata.iommu; - struct of_device *op = to_of_device(dev); - const struct linux_prom_registers *regs; - unsigned long cfg_reg; - int slot; - u64 val; - - regs = of_get_property(op->node, "reg", NULL); - if (!regs) { - printk(KERN_ERR "sbus_set_sbus64: Cannot find regs for %s\n", - op->node->full_name); - return; - } - slot = regs->which_io; - - cfg_reg = iommu->write_complete_reg; - switch (slot) { - case 0: - cfg_reg += 0x20UL; - break; - case 1: - cfg_reg += 0x28UL; - break; - case 2: - cfg_reg += 0x30UL; - break; - case 3: - cfg_reg += 0x38UL; - break; - case 13: - cfg_reg += 0x40UL; - break; - case 14: - cfg_reg += 0x48UL; - break; - case 15: - cfg_reg += 0x50UL; - break; - - default: - return; - }; - - val = upa_readq(cfg_reg); - if (val & (1UL << 14UL)) { - /* Extended transfer mode already enabled. */ - return; - } - - val |= (1UL << 14UL); - - if (bursts & DMA_BURST8) - val |= (1UL << 1UL); - if (bursts & DMA_BURST16) - val |= (1UL << 2UL); - if (bursts & DMA_BURST32) - val |= (1UL << 3UL); - if (bursts & DMA_BURST64) - val |= (1UL << 4UL); - upa_writeq(val, cfg_reg); -} - -/* INO number to IMAP register offset for SYSIO external IRQ's. - * This should conform to both Sunfire/Wildfire server and Fusion - * desktop designs. - */ -#define SYSIO_IMAP_SLOT0 0x2c00UL -#define SYSIO_IMAP_SLOT1 0x2c08UL -#define SYSIO_IMAP_SLOT2 0x2c10UL -#define SYSIO_IMAP_SLOT3 0x2c18UL -#define SYSIO_IMAP_SCSI 0x3000UL -#define SYSIO_IMAP_ETH 0x3008UL -#define SYSIO_IMAP_BPP 0x3010UL -#define SYSIO_IMAP_AUDIO 0x3018UL -#define SYSIO_IMAP_PFAIL 0x3020UL -#define SYSIO_IMAP_KMS 0x3028UL -#define SYSIO_IMAP_FLPY 0x3030UL -#define SYSIO_IMAP_SHW 0x3038UL -#define SYSIO_IMAP_KBD 0x3040UL -#define SYSIO_IMAP_MS 0x3048UL -#define SYSIO_IMAP_SER 0x3050UL -#define SYSIO_IMAP_TIM0 0x3060UL -#define SYSIO_IMAP_TIM1 0x3068UL -#define SYSIO_IMAP_UE 0x3070UL -#define SYSIO_IMAP_CE 0x3078UL -#define SYSIO_IMAP_SBERR 0x3080UL -#define SYSIO_IMAP_PMGMT 0x3088UL -#define SYSIO_IMAP_GFX 0x3090UL -#define SYSIO_IMAP_EUPA 0x3098UL - -#define bogon ((unsigned long) -1) -static unsigned long sysio_irq_offsets[] = { - /* SBUS Slot 0 --> 3, level 1 --> 7 */ - SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, - SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, - SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, - SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, - SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, - SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, - SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, - SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, - - /* Onboard devices (not relevant/used on SunFire). */ - SYSIO_IMAP_SCSI, - SYSIO_IMAP_ETH, - SYSIO_IMAP_BPP, - bogon, - SYSIO_IMAP_AUDIO, - SYSIO_IMAP_PFAIL, - bogon, - bogon, - SYSIO_IMAP_KMS, - SYSIO_IMAP_FLPY, - SYSIO_IMAP_SHW, - SYSIO_IMAP_KBD, - SYSIO_IMAP_MS, - SYSIO_IMAP_SER, - bogon, - bogon, - SYSIO_IMAP_TIM0, - SYSIO_IMAP_TIM1, - bogon, - bogon, - SYSIO_IMAP_UE, - SYSIO_IMAP_CE, - SYSIO_IMAP_SBERR, - SYSIO_IMAP_PMGMT, -}; - -#undef bogon - -#define NUM_SYSIO_OFFSETS ARRAY_SIZE(sysio_irq_offsets) - -/* Convert Interrupt Mapping register pointer to associated - * Interrupt Clear register pointer, SYSIO specific version. - */ -#define SYSIO_ICLR_UNUSED0 0x3400UL -#define SYSIO_ICLR_SLOT0 0x3408UL -#define SYSIO_ICLR_SLOT1 0x3448UL -#define SYSIO_ICLR_SLOT2 0x3488UL -#define SYSIO_ICLR_SLOT3 0x34c8UL -static unsigned long sysio_imap_to_iclr(unsigned long imap) -{ - unsigned long diff = SYSIO_ICLR_UNUSED0 - SYSIO_IMAP_SLOT0; - return imap + diff; -} - -static unsigned int sbus_build_irq(struct of_device *op, unsigned int ino) -{ - struct iommu *iommu = op->dev.archdata.iommu; - unsigned long reg_base = iommu->write_complete_reg - 0x2000UL; - unsigned long imap, iclr; - int sbus_level = 0; - - imap = sysio_irq_offsets[ino]; - if (imap == ((unsigned long)-1)) { - prom_printf("get_irq_translations: Bad SYSIO INO[%x]\n", - ino); - prom_halt(); - } - imap += reg_base; - - /* SYSIO inconsistency. For external SLOTS, we have to select - * the right ICLR register based upon the lower SBUS irq level - * bits. - */ - if (ino >= 0x20) { - iclr = sysio_imap_to_iclr(imap); - } else { - int sbus_slot = (ino & 0x18)>>3; - - sbus_level = ino & 0x7; - - switch(sbus_slot) { - case 0: - iclr = reg_base + SYSIO_ICLR_SLOT0; - break; - case 1: - iclr = reg_base + SYSIO_ICLR_SLOT1; - break; - case 2: - iclr = reg_base + SYSIO_ICLR_SLOT2; - break; - default: - case 3: - iclr = reg_base + SYSIO_ICLR_SLOT3; - break; - }; - - iclr += ((unsigned long)sbus_level - 1UL) * 8UL; - } - return build_irq(sbus_level, iclr, imap); -} - -/* Error interrupt handling. */ -#define SYSIO_UE_AFSR 0x0030UL -#define SYSIO_UE_AFAR 0x0038UL -#define SYSIO_UEAFSR_PPIO 0x8000000000000000UL /* Primary PIO cause */ -#define SYSIO_UEAFSR_PDRD 0x4000000000000000UL /* Primary DVMA read cause */ -#define SYSIO_UEAFSR_PDWR 0x2000000000000000UL /* Primary DVMA write cause */ -#define SYSIO_UEAFSR_SPIO 0x1000000000000000UL /* Secondary PIO is cause */ -#define SYSIO_UEAFSR_SDRD 0x0800000000000000UL /* Secondary DVMA read cause */ -#define SYSIO_UEAFSR_SDWR 0x0400000000000000UL /* Secondary DVMA write cause*/ -#define SYSIO_UEAFSR_RESV1 0x03ff000000000000UL /* Reserved */ -#define SYSIO_UEAFSR_DOFF 0x0000e00000000000UL /* Doubleword Offset */ -#define SYSIO_UEAFSR_SIZE 0x00001c0000000000UL /* Bad transfer size 2^SIZE */ -#define SYSIO_UEAFSR_MID 0x000003e000000000UL /* UPA MID causing the fault */ -#define SYSIO_UEAFSR_RESV2 0x0000001fffffffffUL /* Reserved */ -static irqreturn_t sysio_ue_handler(int irq, void *dev_id) -{ - struct of_device *op = dev_id; - struct iommu *iommu = op->dev.archdata.iommu; - unsigned long reg_base = iommu->write_complete_reg - 0x2000UL; - unsigned long afsr_reg, afar_reg; - unsigned long afsr, afar, error_bits; - int reported, portid; - - afsr_reg = reg_base + SYSIO_UE_AFSR; - afar_reg = reg_base + SYSIO_UE_AFAR; - - /* Latch error status. */ - afsr = upa_readq(afsr_reg); - afar = upa_readq(afar_reg); - - /* Clear primary/secondary error status bits. */ - error_bits = afsr & - (SYSIO_UEAFSR_PPIO | SYSIO_UEAFSR_PDRD | SYSIO_UEAFSR_PDWR | - SYSIO_UEAFSR_SPIO | SYSIO_UEAFSR_SDRD | SYSIO_UEAFSR_SDWR); - upa_writeq(error_bits, afsr_reg); - - portid = of_getintprop_default(op->node, "portid", -1); - - /* Log the error. */ - printk("SYSIO[%x]: Uncorrectable ECC Error, primary error type[%s]\n", - portid, - (((error_bits & SYSIO_UEAFSR_PPIO) ? - "PIO" : - ((error_bits & SYSIO_UEAFSR_PDRD) ? - "DVMA Read" : - ((error_bits & SYSIO_UEAFSR_PDWR) ? - "DVMA Write" : "???"))))); - printk("SYSIO[%x]: DOFF[%lx] SIZE[%lx] MID[%lx]\n", - portid, - (afsr & SYSIO_UEAFSR_DOFF) >> 45UL, - (afsr & SYSIO_UEAFSR_SIZE) >> 42UL, - (afsr & SYSIO_UEAFSR_MID) >> 37UL); - printk("SYSIO[%x]: AFAR[%016lx]\n", portid, afar); - printk("SYSIO[%x]: Secondary UE errors [", portid); - reported = 0; - if (afsr & SYSIO_UEAFSR_SPIO) { - reported++; - printk("(PIO)"); - } - if (afsr & SYSIO_UEAFSR_SDRD) { - reported++; - printk("(DVMA Read)"); - } - if (afsr & SYSIO_UEAFSR_SDWR) { - reported++; - printk("(DVMA Write)"); - } - if (!reported) - printk("(none)"); - printk("]\n"); - - return IRQ_HANDLED; -} - -#define SYSIO_CE_AFSR 0x0040UL -#define SYSIO_CE_AFAR 0x0048UL -#define SYSIO_CEAFSR_PPIO 0x8000000000000000UL /* Primary PIO cause */ -#define SYSIO_CEAFSR_PDRD 0x4000000000000000UL /* Primary DVMA read cause */ -#define SYSIO_CEAFSR_PDWR 0x2000000000000000UL /* Primary DVMA write cause */ -#define SYSIO_CEAFSR_SPIO 0x1000000000000000UL /* Secondary PIO cause */ -#define SYSIO_CEAFSR_SDRD 0x0800000000000000UL /* Secondary DVMA read cause */ -#define SYSIO_CEAFSR_SDWR 0x0400000000000000UL /* Secondary DVMA write cause*/ -#define SYSIO_CEAFSR_RESV1 0x0300000000000000UL /* Reserved */ -#define SYSIO_CEAFSR_ESYND 0x00ff000000000000UL /* Syndrome Bits */ -#define SYSIO_CEAFSR_DOFF 0x0000e00000000000UL /* Double Offset */ -#define SYSIO_CEAFSR_SIZE 0x00001c0000000000UL /* Bad transfer size 2^SIZE */ -#define SYSIO_CEAFSR_MID 0x000003e000000000UL /* UPA MID causing the fault */ -#define SYSIO_CEAFSR_RESV2 0x0000001fffffffffUL /* Reserved */ -static irqreturn_t sysio_ce_handler(int irq, void *dev_id) -{ - struct of_device *op = dev_id; - struct iommu *iommu = op->dev.archdata.iommu; - unsigned long reg_base = iommu->write_complete_reg - 0x2000UL; - unsigned long afsr_reg, afar_reg; - unsigned long afsr, afar, error_bits; - int reported, portid; - - afsr_reg = reg_base + SYSIO_CE_AFSR; - afar_reg = reg_base + SYSIO_CE_AFAR; - - /* Latch error status. */ - afsr = upa_readq(afsr_reg); - afar = upa_readq(afar_reg); - - /* Clear primary/secondary error status bits. */ - error_bits = afsr & - (SYSIO_CEAFSR_PPIO | SYSIO_CEAFSR_PDRD | SYSIO_CEAFSR_PDWR | - SYSIO_CEAFSR_SPIO | SYSIO_CEAFSR_SDRD | SYSIO_CEAFSR_SDWR); - upa_writeq(error_bits, afsr_reg); - - portid = of_getintprop_default(op->node, "portid", -1); - - printk("SYSIO[%x]: Correctable ECC Error, primary error type[%s]\n", - portid, - (((error_bits & SYSIO_CEAFSR_PPIO) ? - "PIO" : - ((error_bits & SYSIO_CEAFSR_PDRD) ? - "DVMA Read" : - ((error_bits & SYSIO_CEAFSR_PDWR) ? - "DVMA Write" : "???"))))); - - /* XXX Use syndrome and afar to print out module string just like - * XXX UDB CE trap handler does... -DaveM - */ - printk("SYSIO[%x]: DOFF[%lx] ECC Syndrome[%lx] Size[%lx] MID[%lx]\n", - portid, - (afsr & SYSIO_CEAFSR_DOFF) >> 45UL, - (afsr & SYSIO_CEAFSR_ESYND) >> 48UL, - (afsr & SYSIO_CEAFSR_SIZE) >> 42UL, - (afsr & SYSIO_CEAFSR_MID) >> 37UL); - printk("SYSIO[%x]: AFAR[%016lx]\n", portid, afar); - - printk("SYSIO[%x]: Secondary CE errors [", portid); - reported = 0; - if (afsr & SYSIO_CEAFSR_SPIO) { - reported++; - printk("(PIO)"); - } - if (afsr & SYSIO_CEAFSR_SDRD) { - reported++; - printk("(DVMA Read)"); - } - if (afsr & SYSIO_CEAFSR_SDWR) { - reported++; - printk("(DVMA Write)"); - } - if (!reported) - printk("(none)"); - printk("]\n"); - - return IRQ_HANDLED; -} - -#define SYSIO_SBUS_AFSR 0x2010UL -#define SYSIO_SBUS_AFAR 0x2018UL -#define SYSIO_SBAFSR_PLE 0x8000000000000000UL /* Primary Late PIO Error */ -#define SYSIO_SBAFSR_PTO 0x4000000000000000UL /* Primary SBUS Timeout */ -#define SYSIO_SBAFSR_PBERR 0x2000000000000000UL /* Primary SBUS Error ACK */ -#define SYSIO_SBAFSR_SLE 0x1000000000000000UL /* Secondary Late PIO Error */ -#define SYSIO_SBAFSR_STO 0x0800000000000000UL /* Secondary SBUS Timeout */ -#define SYSIO_SBAFSR_SBERR 0x0400000000000000UL /* Secondary SBUS Error ACK */ -#define SYSIO_SBAFSR_RESV1 0x03ff000000000000UL /* Reserved */ -#define SYSIO_SBAFSR_RD 0x0000800000000000UL /* Primary was late PIO read */ -#define SYSIO_SBAFSR_RESV2 0x0000600000000000UL /* Reserved */ -#define SYSIO_SBAFSR_SIZE 0x00001c0000000000UL /* Size of transfer */ -#define SYSIO_SBAFSR_MID 0x000003e000000000UL /* MID causing the error */ -#define SYSIO_SBAFSR_RESV3 0x0000001fffffffffUL /* Reserved */ -static irqreturn_t sysio_sbus_error_handler(int irq, void *dev_id) -{ - struct of_device *op = dev_id; - struct iommu *iommu = op->dev.archdata.iommu; - unsigned long afsr_reg, afar_reg, reg_base; - unsigned long afsr, afar, error_bits; - int reported, portid; - - reg_base = iommu->write_complete_reg - 0x2000UL; - afsr_reg = reg_base + SYSIO_SBUS_AFSR; - afar_reg = reg_base + SYSIO_SBUS_AFAR; - - afsr = upa_readq(afsr_reg); - afar = upa_readq(afar_reg); - - /* Clear primary/secondary error status bits. */ - error_bits = afsr & - (SYSIO_SBAFSR_PLE | SYSIO_SBAFSR_PTO | SYSIO_SBAFSR_PBERR | - SYSIO_SBAFSR_SLE | SYSIO_SBAFSR_STO | SYSIO_SBAFSR_SBERR); - upa_writeq(error_bits, afsr_reg); - - portid = of_getintprop_default(op->node, "portid", -1); - - /* Log the error. */ - printk("SYSIO[%x]: SBUS Error, primary error type[%s] read(%d)\n", - portid, - (((error_bits & SYSIO_SBAFSR_PLE) ? - "Late PIO Error" : - ((error_bits & SYSIO_SBAFSR_PTO) ? - "Time Out" : - ((error_bits & SYSIO_SBAFSR_PBERR) ? - "Error Ack" : "???")))), - (afsr & SYSIO_SBAFSR_RD) ? 1 : 0); - printk("SYSIO[%x]: size[%lx] MID[%lx]\n", - portid, - (afsr & SYSIO_SBAFSR_SIZE) >> 42UL, - (afsr & SYSIO_SBAFSR_MID) >> 37UL); - printk("SYSIO[%x]: AFAR[%016lx]\n", portid, afar); - printk("SYSIO[%x]: Secondary SBUS errors [", portid); - reported = 0; - if (afsr & SYSIO_SBAFSR_SLE) { - reported++; - printk("(Late PIO Error)"); - } - if (afsr & SYSIO_SBAFSR_STO) { - reported++; - printk("(Time Out)"); - } - if (afsr & SYSIO_SBAFSR_SBERR) { - reported++; - printk("(Error Ack)"); - } - if (!reported) - printk("(none)"); - printk("]\n"); - - /* XXX check iommu/strbuf for further error status XXX */ - - return IRQ_HANDLED; -} - -#define ECC_CONTROL 0x0020UL -#define SYSIO_ECNTRL_ECCEN 0x8000000000000000UL /* Enable ECC Checking */ -#define SYSIO_ECNTRL_UEEN 0x4000000000000000UL /* Enable UE Interrupts */ -#define SYSIO_ECNTRL_CEEN 0x2000000000000000UL /* Enable CE Interrupts */ - -#define SYSIO_UE_INO 0x34 -#define SYSIO_CE_INO 0x35 -#define SYSIO_SBUSERR_INO 0x36 - -static void __init sysio_register_error_handlers(struct of_device *op) -{ - struct iommu *iommu = op->dev.archdata.iommu; - unsigned long reg_base = iommu->write_complete_reg - 0x2000UL; - unsigned int irq; - u64 control; - int portid; - - portid = of_getintprop_default(op->node, "portid", -1); - - irq = sbus_build_irq(op, SYSIO_UE_INO); - if (request_irq(irq, sysio_ue_handler, 0, - "SYSIO_UE", op) < 0) { - prom_printf("SYSIO[%x]: Cannot register UE interrupt.\n", - portid); - prom_halt(); - } - - irq = sbus_build_irq(op, SYSIO_CE_INO); - if (request_irq(irq, sysio_ce_handler, 0, - "SYSIO_CE", op) < 0) { - prom_printf("SYSIO[%x]: Cannot register CE interrupt.\n", - portid); - prom_halt(); - } - - irq = sbus_build_irq(op, SYSIO_SBUSERR_INO); - if (request_irq(irq, sysio_sbus_error_handler, 0, - "SYSIO_SBERR", op) < 0) { - prom_printf("SYSIO[%x]: Cannot register SBUS Error interrupt.\n", - portid); - prom_halt(); - } - - /* Now turn the error interrupts on and also enable ECC checking. */ - upa_writeq((SYSIO_ECNTRL_ECCEN | - SYSIO_ECNTRL_UEEN | - SYSIO_ECNTRL_CEEN), - reg_base + ECC_CONTROL); - - control = upa_readq(iommu->write_complete_reg); - control |= 0x100UL; /* SBUS Error Interrupt Enable */ - upa_writeq(control, iommu->write_complete_reg); -} - -/* Boot time initialization. */ -static void __init sbus_iommu_init(struct of_device *op) -{ - const struct linux_prom64_registers *pr; - struct device_node *dp = op->node; - struct iommu *iommu; - struct strbuf *strbuf; - unsigned long regs, reg_base; - int i, portid; - u64 control; - - pr = of_get_property(dp, "reg", NULL); - if (!pr) { - prom_printf("sbus_iommu_init: Cannot map SYSIO " - "control registers.\n"); - prom_halt(); - } - regs = pr->phys_addr; - - iommu = kzalloc(sizeof(*iommu), GFP_ATOMIC); - if (!iommu) - goto fatal_memory_error; - strbuf = kzalloc(sizeof(*strbuf), GFP_ATOMIC); - if (!strbuf) - goto fatal_memory_error; - - op->dev.archdata.iommu = iommu; - op->dev.archdata.stc = strbuf; - op->dev.archdata.numa_node = -1; - - reg_base = regs + SYSIO_IOMMUREG_BASE; - iommu->iommu_control = reg_base + IOMMU_CONTROL; - iommu->iommu_tsbbase = reg_base + IOMMU_TSBBASE; - iommu->iommu_flush = reg_base + IOMMU_FLUSH; - iommu->iommu_tags = iommu->iommu_control + - (IOMMU_TAGDIAG - IOMMU_CONTROL); - - reg_base = regs + SYSIO_STRBUFREG_BASE; - strbuf->strbuf_control = reg_base + STRBUF_CONTROL; - strbuf->strbuf_pflush = reg_base + STRBUF_PFLUSH; - strbuf->strbuf_fsync = reg_base + STRBUF_FSYNC; - - strbuf->strbuf_enabled = 1; - - strbuf->strbuf_flushflag = (volatile unsigned long *) - ((((unsigned long)&strbuf->__flushflag_buf[0]) - + 63UL) - & ~63UL); - strbuf->strbuf_flushflag_pa = (unsigned long) - __pa(strbuf->strbuf_flushflag); - - /* The SYSIO SBUS control register is used for dummy reads - * in order to ensure write completion. - */ - iommu->write_complete_reg = regs + 0x2000UL; - - portid = of_getintprop_default(op->node, "portid", -1); - printk(KERN_INFO "SYSIO: UPA portID %x, at %016lx\n", - portid, regs); - - /* Setup for TSB_SIZE=7, TBW_SIZE=0, MMU_DE=1, MMU_EN=1 */ - if (iommu_table_init(iommu, IO_TSB_SIZE, MAP_BASE, 0xffffffff, -1)) - goto fatal_memory_error; - - control = upa_readq(iommu->iommu_control); - control = ((7UL << 16UL) | - (0UL << 2UL) | - (1UL << 1UL) | - (1UL << 0UL)); - upa_writeq(control, iommu->iommu_control); - - /* Clean out any cruft in the IOMMU using - * diagnostic accesses. - */ - for (i = 0; i < 16; i++) { - unsigned long dram, tag; - - dram = iommu->iommu_control + (IOMMU_DRAMDIAG - IOMMU_CONTROL); - tag = iommu->iommu_control + (IOMMU_TAGDIAG - IOMMU_CONTROL); - - dram += (unsigned long)i * 8UL; - tag += (unsigned long)i * 8UL; - upa_writeq(0, dram); - upa_writeq(0, tag); - } - upa_readq(iommu->write_complete_reg); - - /* Give the TSB to SYSIO. */ - upa_writeq(__pa(iommu->page_table), iommu->iommu_tsbbase); - - /* Setup streaming buffer, DE=1 SB_EN=1 */ - control = (1UL << 1UL) | (1UL << 0UL); - upa_writeq(control, strbuf->strbuf_control); - - /* Clear out the tags using diagnostics. */ - for (i = 0; i < 16; i++) { - unsigned long ptag, ltag; - - ptag = strbuf->strbuf_control + - (STRBUF_PTAGDIAG - STRBUF_CONTROL); - ltag = strbuf->strbuf_control + - (STRBUF_LTAGDIAG - STRBUF_CONTROL); - ptag += (unsigned long)i * 8UL; - ltag += (unsigned long)i * 8UL; - - upa_writeq(0UL, ptag); - upa_writeq(0UL, ltag); - } - - /* Enable DVMA arbitration for all devices/slots. */ - control = upa_readq(iommu->write_complete_reg); - control |= 0x3fUL; - upa_writeq(control, iommu->write_complete_reg); - - /* Now some Xfire specific grot... */ - if (this_is_starfire) - starfire_hookup(portid); - - sysio_register_error_handlers(op); - return; - -fatal_memory_error: - prom_printf("sbus_iommu_init: Fatal memory allocation error.\n"); -} - -static int __init sbus_init(void) -{ - struct device_node *dp; - - for_each_node_by_name(dp, "sbus") { - struct of_device *op = of_find_device_by_node(dp); - - sbus_iommu_init(op); - of_propagate_archdata(op); - } - - return 0; -} - -subsys_initcall(sbus_init); diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c deleted file mode 100644 index c8b03a4f68bf..000000000000 --- a/arch/sparc64/kernel/setup.c +++ /dev/null @@ -1,428 +0,0 @@ -/* - * linux/arch/sparc64/kernel/setup.c - * - * Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> -#include <linux/slab.h> -#include <asm/smp.h> -#include <linux/user.h> -#include <linux/screen_info.h> -#include <linux/delay.h> -#include <linux/fs.h> -#include <linux/seq_file.h> -#include <linux/syscalls.h> -#include <linux/kdev_t.h> -#include <linux/major.h> -#include <linux/string.h> -#include <linux/init.h> -#include <linux/inet.h> -#include <linux/console.h> -#include <linux/root_dev.h> -#include <linux/interrupt.h> -#include <linux/cpu.h> -#include <linux/initrd.h> - -#include <asm/system.h> -#include <asm/io.h> -#include <asm/processor.h> -#include <asm/oplib.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/idprom.h> -#include <asm/head.h> -#include <asm/starfire.h> -#include <asm/mmu_context.h> -#include <asm/timer.h> -#include <asm/sections.h> -#include <asm/setup.h> -#include <asm/mmu.h> -#include <asm/ns87303.h> - -#ifdef CONFIG_IP_PNP -#include <net/ipconfig.h> -#endif - -#include "entry.h" - -/* Used to synchronize accesses to NatSemi SUPER I/O chip configure - * operations in asm/ns87303.h - */ -DEFINE_SPINLOCK(ns87303_lock); - -struct screen_info screen_info = { - 0, 0, /* orig-x, orig-y */ - 0, /* unused */ - 0, /* orig-video-page */ - 0, /* orig-video-mode */ - 128, /* orig-video-cols */ - 0, 0, 0, /* unused, ega_bx, unused */ - 54, /* orig-video-lines */ - 0, /* orig-video-isVGA */ - 16 /* orig-video-points */ -}; - -static void -prom_console_write(struct console *con, const char *s, unsigned n) -{ - prom_write(s, n); -} - -/* Exported for mm/init.c:paging_init. */ -unsigned long cmdline_memory_size = 0; - -static struct console prom_early_console = { - .name = "earlyprom", - .write = prom_console_write, - .flags = CON_PRINTBUFFER | CON_BOOT | CON_ANYTIME, - .index = -1, -}; - -/* - * Process kernel command line switches that are specific to the - * SPARC or that require special low-level processing. - */ -static void __init process_switch(char c) -{ - switch (c) { - case 'd': - case 's': - break; - case 'h': - prom_printf("boot_flags_init: Halt!\n"); - prom_halt(); - break; - case 'p': - /* Just ignore, this behavior is now the default. */ - break; - case 'P': - /* Force UltraSPARC-III P-Cache on. */ - if (tlb_type != cheetah) { - printk("BOOT: Ignoring P-Cache force option.\n"); - break; - } - cheetah_pcache_forced_on = 1; - add_taint(TAINT_MACHINE_CHECK); - cheetah_enable_pcache(); - break; - - default: - printk("Unknown boot switch (-%c)\n", c); - break; - } -} - -static void __init boot_flags_init(char *commands) -{ - while (*commands) { - /* Move to the start of the next "argument". */ - while (*commands && *commands == ' ') - commands++; - - /* Process any command switches, otherwise skip it. */ - if (*commands == '\0') - break; - if (*commands == '-') { - commands++; - while (*commands && *commands != ' ') - process_switch(*commands++); - continue; - } - if (!strncmp(commands, "mem=", 4)) { - /* - * "mem=XXX[kKmM]" overrides the PROM-reported - * memory size. - */ - cmdline_memory_size = simple_strtoul(commands + 4, - &commands, 0); - if (*commands == 'K' || *commands == 'k') { - cmdline_memory_size <<= 10; - commands++; - } else if (*commands=='M' || *commands=='m') { - cmdline_memory_size <<= 20; - commands++; - } - } - while (*commands && *commands != ' ') - commands++; - } -} - -extern unsigned short root_flags; -extern unsigned short root_dev; -extern unsigned short ram_flags; -#define RAMDISK_IMAGE_START_MASK 0x07FF -#define RAMDISK_PROMPT_FLAG 0x8000 -#define RAMDISK_LOAD_FLAG 0x4000 - -extern int root_mountflags; - -char reboot_command[COMMAND_LINE_SIZE]; - -static struct pt_regs fake_swapper_regs = { { 0, }, 0, 0, 0, 0 }; - -void __init per_cpu_patch(void) -{ - struct cpuid_patch_entry *p; - unsigned long ver; - int is_jbus; - - if (tlb_type == spitfire && !this_is_starfire) - return; - - is_jbus = 0; - if (tlb_type != hypervisor) { - __asm__ ("rdpr %%ver, %0" : "=r" (ver)); - is_jbus = ((ver >> 32UL) == __JALAPENO_ID || - (ver >> 32UL) == __SERRANO_ID); - } - - p = &__cpuid_patch; - while (p < &__cpuid_patch_end) { - unsigned long addr = p->addr; - unsigned int *insns; - - switch (tlb_type) { - case spitfire: - insns = &p->starfire[0]; - break; - case cheetah: - case cheetah_plus: - if (is_jbus) - insns = &p->cheetah_jbus[0]; - else - insns = &p->cheetah_safari[0]; - break; - case hypervisor: - insns = &p->sun4v[0]; - break; - default: - prom_printf("Unknown cpu type, halting.\n"); - prom_halt(); - }; - - *(unsigned int *) (addr + 0) = insns[0]; - wmb(); - __asm__ __volatile__("flush %0" : : "r" (addr + 0)); - - *(unsigned int *) (addr + 4) = insns[1]; - wmb(); - __asm__ __volatile__("flush %0" : : "r" (addr + 4)); - - *(unsigned int *) (addr + 8) = insns[2]; - wmb(); - __asm__ __volatile__("flush %0" : : "r" (addr + 8)); - - *(unsigned int *) (addr + 12) = insns[3]; - wmb(); - __asm__ __volatile__("flush %0" : : "r" (addr + 12)); - - p++; - } -} - -void __init sun4v_patch(void) -{ - extern void sun4v_hvapi_init(void); - struct sun4v_1insn_patch_entry *p1; - struct sun4v_2insn_patch_entry *p2; - - if (tlb_type != hypervisor) - return; - - p1 = &__sun4v_1insn_patch; - while (p1 < &__sun4v_1insn_patch_end) { - unsigned long addr = p1->addr; - - *(unsigned int *) (addr + 0) = p1->insn; - wmb(); - __asm__ __volatile__("flush %0" : : "r" (addr + 0)); - - p1++; - } - - p2 = &__sun4v_2insn_patch; - while (p2 < &__sun4v_2insn_patch_end) { - unsigned long addr = p2->addr; - - *(unsigned int *) (addr + 0) = p2->insns[0]; - wmb(); - __asm__ __volatile__("flush %0" : : "r" (addr + 0)); - - *(unsigned int *) (addr + 4) = p2->insns[1]; - wmb(); - __asm__ __volatile__("flush %0" : : "r" (addr + 4)); - - p2++; - } - - sun4v_hvapi_init(); -} - -#ifdef CONFIG_SMP -void __init boot_cpu_id_too_large(int cpu) -{ - prom_printf("Serious problem, boot cpu id (%d) >= NR_CPUS (%d)\n", - cpu, NR_CPUS); - prom_halt(); -} -#endif - -void __init setup_arch(char **cmdline_p) -{ - /* Initialize PROM console and command line. */ - *cmdline_p = prom_getbootargs(); - strcpy(boot_command_line, *cmdline_p); - parse_early_param(); - - boot_flags_init(*cmdline_p); - register_console(&prom_early_console); - - if (tlb_type == hypervisor) - printk("ARCH: SUN4V\n"); - else - printk("ARCH: SUN4U\n"); - -#ifdef CONFIG_DUMMY_CONSOLE - conswitchp = &dummy_con; -#elif defined(CONFIG_PROM_CONSOLE) - conswitchp = &prom_con; -#endif - - idprom_init(); - - if (!root_flags) - root_mountflags &= ~MS_RDONLY; - ROOT_DEV = old_decode_dev(root_dev); -#ifdef CONFIG_BLK_DEV_RAM - rd_image_start = ram_flags & RAMDISK_IMAGE_START_MASK; - rd_prompt = ((ram_flags & RAMDISK_PROMPT_FLAG) != 0); - rd_doload = ((ram_flags & RAMDISK_LOAD_FLAG) != 0); -#endif - - task_thread_info(&init_task)->kregs = &fake_swapper_regs; - -#ifdef CONFIG_IP_PNP - if (!ic_set_manually) { - int chosen = prom_finddevice ("/chosen"); - u32 cl, sv, gw; - - cl = prom_getintdefault (chosen, "client-ip", 0); - sv = prom_getintdefault (chosen, "server-ip", 0); - gw = prom_getintdefault (chosen, "gateway-ip", 0); - if (cl && sv) { - ic_myaddr = cl; - ic_servaddr = sv; - if (gw) - ic_gateway = gw; -#if defined(CONFIG_IP_PNP_BOOTP) || defined(CONFIG_IP_PNP_RARP) - ic_proto_enabled = 0; -#endif - } - } -#endif - - /* Get boot processor trap_block[] setup. */ - init_cur_cpu_trap(current_thread_info()); - - paging_init(); -} - -/* BUFFER is PAGE_SIZE bytes long. */ - -extern void smp_info(struct seq_file *); -extern void smp_bogo(struct seq_file *); -extern void mmu_info(struct seq_file *); - -unsigned int dcache_parity_tl1_occurred; -unsigned int icache_parity_tl1_occurred; - -int ncpus_probed; - -static int show_cpuinfo(struct seq_file *m, void *__unused) -{ - seq_printf(m, - "cpu\t\t: %s\n" - "fpu\t\t: %s\n" - "prom\t\t: %s\n" - "type\t\t: %s\n" - "ncpus probed\t: %d\n" - "ncpus active\t: %d\n" - "D$ parity tl1\t: %u\n" - "I$ parity tl1\t: %u\n" -#ifndef CONFIG_SMP - "Cpu0ClkTck\t: %016lx\n" -#endif - , - sparc_cpu_type, - sparc_fpu_type, - prom_version, - ((tlb_type == hypervisor) ? - "sun4v" : - "sun4u"), - ncpus_probed, - num_online_cpus(), - dcache_parity_tl1_occurred, - icache_parity_tl1_occurred -#ifndef CONFIG_SMP - , cpu_data(0).clock_tick -#endif - ); -#ifdef CONFIG_SMP - smp_bogo(m); -#endif - mmu_info(m); -#ifdef CONFIG_SMP - smp_info(m); -#endif - return 0; -} - -static void *c_start(struct seq_file *m, loff_t *pos) -{ - /* The pointer we are returning is arbitrary, - * it just has to be non-NULL and not IS_ERR - * in the success case. - */ - return *pos == 0 ? &c_start : NULL; -} - -static void *c_next(struct seq_file *m, void *v, loff_t *pos) -{ - ++*pos; - return c_start(m, pos); -} - -static void c_stop(struct seq_file *m, void *v) -{ -} - -const struct seq_operations cpuinfo_op = { - .start =c_start, - .next = c_next, - .stop = c_stop, - .show = show_cpuinfo, -}; - -extern int stop_a_enabled; - -void sun_do_break(void) -{ - if (!stop_a_enabled) - return; - - prom_printf("\n"); - flush_user_windows(); - - prom_cmdline(); -} - -int stop_a_enabled = 1; diff --git a/arch/sparc64/kernel/signal.c b/arch/sparc64/kernel/signal.c deleted file mode 100644 index ec82d76dc6f2..000000000000 --- a/arch/sparc64/kernel/signal.c +++ /dev/null @@ -1,617 +0,0 @@ -/* - * arch/sparc64/kernel/signal.c - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright (C) 1995, 2008 David S. Miller (davem@davemloft.net) - * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) - * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#ifdef CONFIG_COMPAT -#include <linux/compat.h> /* for compat_old_sigset_t */ -#endif -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/signal.h> -#include <linux/errno.h> -#include <linux/wait.h> -#include <linux/ptrace.h> -#include <linux/tracehook.h> -#include <linux/unistd.h> -#include <linux/mm.h> -#include <linux/tty.h> -#include <linux/binfmts.h> -#include <linux/bitops.h> - -#include <asm/uaccess.h> -#include <asm/ptrace.h> -#include <asm/pgtable.h> -#include <asm/fpumacro.h> -#include <asm/uctx.h> -#include <asm/siginfo.h> -#include <asm/visasm.h> - -#include "entry.h" -#include "systbls.h" - -#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) - -/* {set, get}context() needed for 64-bit SparcLinux userland. */ -asmlinkage void sparc64_set_context(struct pt_regs *regs) -{ - struct ucontext __user *ucp = (struct ucontext __user *) - regs->u_regs[UREG_I0]; - mc_gregset_t __user *grp; - unsigned long pc, npc, tstate; - unsigned long fp, i7; - unsigned char fenab; - int err; - - flush_user_windows(); - if (get_thread_wsaved() || - (((unsigned long)ucp) & (sizeof(unsigned long)-1)) || - (!__access_ok(ucp, sizeof(*ucp)))) - goto do_sigsegv; - grp = &ucp->uc_mcontext.mc_gregs; - err = __get_user(pc, &((*grp)[MC_PC])); - err |= __get_user(npc, &((*grp)[MC_NPC])); - if (err || ((pc | npc) & 3)) - goto do_sigsegv; - if (regs->u_regs[UREG_I1]) { - sigset_t set; - - if (_NSIG_WORDS == 1) { - if (__get_user(set.sig[0], &ucp->uc_sigmask.sig[0])) - goto do_sigsegv; - } else { - if (__copy_from_user(&set, &ucp->uc_sigmask, sizeof(sigset_t))) - goto do_sigsegv; - } - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - } - if (test_thread_flag(TIF_32BIT)) { - pc &= 0xffffffff; - npc &= 0xffffffff; - } - regs->tpc = pc; - regs->tnpc = npc; - err |= __get_user(regs->y, &((*grp)[MC_Y])); - err |= __get_user(tstate, &((*grp)[MC_TSTATE])); - regs->tstate &= ~(TSTATE_ASI | TSTATE_ICC | TSTATE_XCC); - regs->tstate |= (tstate & (TSTATE_ASI | TSTATE_ICC | TSTATE_XCC)); - err |= __get_user(regs->u_regs[UREG_G1], (&(*grp)[MC_G1])); - err |= __get_user(regs->u_regs[UREG_G2], (&(*grp)[MC_G2])); - err |= __get_user(regs->u_regs[UREG_G3], (&(*grp)[MC_G3])); - err |= __get_user(regs->u_regs[UREG_G4], (&(*grp)[MC_G4])); - err |= __get_user(regs->u_regs[UREG_G5], (&(*grp)[MC_G5])); - err |= __get_user(regs->u_regs[UREG_G6], (&(*grp)[MC_G6])); - - /* Skip %g7 as that's the thread register in userspace. */ - - err |= __get_user(regs->u_regs[UREG_I0], (&(*grp)[MC_O0])); - err |= __get_user(regs->u_regs[UREG_I1], (&(*grp)[MC_O1])); - err |= __get_user(regs->u_regs[UREG_I2], (&(*grp)[MC_O2])); - err |= __get_user(regs->u_regs[UREG_I3], (&(*grp)[MC_O3])); - err |= __get_user(regs->u_regs[UREG_I4], (&(*grp)[MC_O4])); - err |= __get_user(regs->u_regs[UREG_I5], (&(*grp)[MC_O5])); - err |= __get_user(regs->u_regs[UREG_I6], (&(*grp)[MC_O6])); - err |= __get_user(regs->u_regs[UREG_I7], (&(*grp)[MC_O7])); - - err |= __get_user(fp, &(ucp->uc_mcontext.mc_fp)); - err |= __get_user(i7, &(ucp->uc_mcontext.mc_i7)); - err |= __put_user(fp, - (&(((struct reg_window __user *)(STACK_BIAS+regs->u_regs[UREG_I6]))->ins[6]))); - err |= __put_user(i7, - (&(((struct reg_window __user *)(STACK_BIAS+regs->u_regs[UREG_I6]))->ins[7]))); - - err |= __get_user(fenab, &(ucp->uc_mcontext.mc_fpregs.mcfpu_enab)); - if (fenab) { - unsigned long *fpregs = current_thread_info()->fpregs; - unsigned long fprs; - - fprs_write(0); - err |= __get_user(fprs, &(ucp->uc_mcontext.mc_fpregs.mcfpu_fprs)); - if (fprs & FPRS_DL) - err |= copy_from_user(fpregs, - &(ucp->uc_mcontext.mc_fpregs.mcfpu_fregs), - (sizeof(unsigned int) * 32)); - if (fprs & FPRS_DU) - err |= copy_from_user(fpregs+16, - ((unsigned long __user *)&(ucp->uc_mcontext.mc_fpregs.mcfpu_fregs))+16, - (sizeof(unsigned int) * 32)); - err |= __get_user(current_thread_info()->xfsr[0], - &(ucp->uc_mcontext.mc_fpregs.mcfpu_fsr)); - err |= __get_user(current_thread_info()->gsr[0], - &(ucp->uc_mcontext.mc_fpregs.mcfpu_gsr)); - regs->tstate &= ~TSTATE_PEF; - } - if (err) - goto do_sigsegv; - - return; -do_sigsegv: - force_sig(SIGSEGV, current); -} - -asmlinkage void sparc64_get_context(struct pt_regs *regs) -{ - struct ucontext __user *ucp = (struct ucontext __user *) - regs->u_regs[UREG_I0]; - mc_gregset_t __user *grp; - mcontext_t __user *mcp; - unsigned long fp, i7; - unsigned char fenab; - int err; - - synchronize_user_stack(); - if (get_thread_wsaved() || clear_user(ucp, sizeof(*ucp))) - goto do_sigsegv; - -#if 1 - fenab = 0; /* IMO get_context is like any other system call, thus modifies FPU state -jj */ -#else - fenab = (current_thread_info()->fpsaved[0] & FPRS_FEF); -#endif - - mcp = &ucp->uc_mcontext; - grp = &mcp->mc_gregs; - - /* Skip over the trap instruction, first. */ - if (test_thread_flag(TIF_32BIT)) { - regs->tpc = (regs->tnpc & 0xffffffff); - regs->tnpc = (regs->tnpc + 4) & 0xffffffff; - } else { - regs->tpc = regs->tnpc; - regs->tnpc += 4; - } - err = 0; - if (_NSIG_WORDS == 1) - err |= __put_user(current->blocked.sig[0], - (unsigned long __user *)&ucp->uc_sigmask); - else - err |= __copy_to_user(&ucp->uc_sigmask, ¤t->blocked, - sizeof(sigset_t)); - - err |= __put_user(regs->tstate, &((*grp)[MC_TSTATE])); - err |= __put_user(regs->tpc, &((*grp)[MC_PC])); - err |= __put_user(regs->tnpc, &((*grp)[MC_NPC])); - err |= __put_user(regs->y, &((*grp)[MC_Y])); - err |= __put_user(regs->u_regs[UREG_G1], &((*grp)[MC_G1])); - err |= __put_user(regs->u_regs[UREG_G2], &((*grp)[MC_G2])); - err |= __put_user(regs->u_regs[UREG_G3], &((*grp)[MC_G3])); - err |= __put_user(regs->u_regs[UREG_G4], &((*grp)[MC_G4])); - err |= __put_user(regs->u_regs[UREG_G5], &((*grp)[MC_G5])); - err |= __put_user(regs->u_regs[UREG_G6], &((*grp)[MC_G6])); - err |= __put_user(regs->u_regs[UREG_G7], &((*grp)[MC_G7])); - err |= __put_user(regs->u_regs[UREG_I0], &((*grp)[MC_O0])); - err |= __put_user(regs->u_regs[UREG_I1], &((*grp)[MC_O1])); - err |= __put_user(regs->u_regs[UREG_I2], &((*grp)[MC_O2])); - err |= __put_user(regs->u_regs[UREG_I3], &((*grp)[MC_O3])); - err |= __put_user(regs->u_regs[UREG_I4], &((*grp)[MC_O4])); - err |= __put_user(regs->u_regs[UREG_I5], &((*grp)[MC_O5])); - err |= __put_user(regs->u_regs[UREG_I6], &((*grp)[MC_O6])); - err |= __put_user(regs->u_regs[UREG_I7], &((*grp)[MC_O7])); - - err |= __get_user(fp, - (&(((struct reg_window __user *)(STACK_BIAS+regs->u_regs[UREG_I6]))->ins[6]))); - err |= __get_user(i7, - (&(((struct reg_window __user *)(STACK_BIAS+regs->u_regs[UREG_I6]))->ins[7]))); - err |= __put_user(fp, &(mcp->mc_fp)); - err |= __put_user(i7, &(mcp->mc_i7)); - - err |= __put_user(fenab, &(mcp->mc_fpregs.mcfpu_enab)); - if (fenab) { - unsigned long *fpregs = current_thread_info()->fpregs; - unsigned long fprs; - - fprs = current_thread_info()->fpsaved[0]; - if (fprs & FPRS_DL) - err |= copy_to_user(&(mcp->mc_fpregs.mcfpu_fregs), fpregs, - (sizeof(unsigned int) * 32)); - if (fprs & FPRS_DU) - err |= copy_to_user( - ((unsigned long __user *)&(mcp->mc_fpregs.mcfpu_fregs))+16, fpregs+16, - (sizeof(unsigned int) * 32)); - err |= __put_user(current_thread_info()->xfsr[0], &(mcp->mc_fpregs.mcfpu_fsr)); - err |= __put_user(current_thread_info()->gsr[0], &(mcp->mc_fpregs.mcfpu_gsr)); - err |= __put_user(fprs, &(mcp->mc_fpregs.mcfpu_fprs)); - } - if (err) - goto do_sigsegv; - - return; -do_sigsegv: - force_sig(SIGSEGV, current); -} - -struct rt_signal_frame { - struct sparc_stackf ss; - siginfo_t info; - struct pt_regs regs; - __siginfo_fpu_t __user *fpu_save; - stack_t stack; - sigset_t mask; - __siginfo_fpu_t fpu_state; -}; - -static long _sigpause_common(old_sigset_t set) -{ - set &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); - current->saved_sigmask = current->blocked; - siginitset(¤t->blocked, set); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - current->state = TASK_INTERRUPTIBLE; - schedule(); - - set_restore_sigmask(); - - return -ERESTARTNOHAND; -} - -asmlinkage long sys_sigpause(unsigned int set) -{ - return _sigpause_common(set); -} - -asmlinkage long sys_sigsuspend(old_sigset_t set) -{ - return _sigpause_common(set); -} - -static inline int -restore_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) -{ - unsigned long *fpregs = current_thread_info()->fpregs; - unsigned long fprs; - int err; - - err = __get_user(fprs, &fpu->si_fprs); - fprs_write(0); - regs->tstate &= ~TSTATE_PEF; - if (fprs & FPRS_DL) - err |= copy_from_user(fpregs, &fpu->si_float_regs[0], - (sizeof(unsigned int) * 32)); - if (fprs & FPRS_DU) - err |= copy_from_user(fpregs+16, &fpu->si_float_regs[32], - (sizeof(unsigned int) * 32)); - err |= __get_user(current_thread_info()->xfsr[0], &fpu->si_fsr); - err |= __get_user(current_thread_info()->gsr[0], &fpu->si_gsr); - current_thread_info()->fpsaved[0] |= fprs; - return err; -} - -void do_rt_sigreturn(struct pt_regs *regs) -{ - struct rt_signal_frame __user *sf; - unsigned long tpc, tnpc, tstate; - __siginfo_fpu_t __user *fpu_save; - sigset_t set; - int err; - - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - - synchronize_user_stack (); - sf = (struct rt_signal_frame __user *) - (regs->u_regs [UREG_FP] + STACK_BIAS); - - /* 1. Make sure we are not getting garbage from the user */ - if (((unsigned long) sf) & 3) - goto segv; - - err = get_user(tpc, &sf->regs.tpc); - err |= __get_user(tnpc, &sf->regs.tnpc); - if (test_thread_flag(TIF_32BIT)) { - tpc &= 0xffffffff; - tnpc &= 0xffffffff; - } - err |= ((tpc | tnpc) & 3); - - /* 2. Restore the state */ - err |= __get_user(regs->y, &sf->regs.y); - err |= __get_user(tstate, &sf->regs.tstate); - err |= copy_from_user(regs->u_regs, sf->regs.u_regs, sizeof(regs->u_regs)); - - /* User can only change condition codes and %asi in %tstate. */ - regs->tstate &= ~(TSTATE_ASI | TSTATE_ICC | TSTATE_XCC); - regs->tstate |= (tstate & (TSTATE_ASI | TSTATE_ICC | TSTATE_XCC)); - - err |= __get_user(fpu_save, &sf->fpu_save); - if (fpu_save) - err |= restore_fpu_state(regs, &sf->fpu_state); - - err |= __copy_from_user(&set, &sf->mask, sizeof(sigset_t)); - err |= do_sigaltstack(&sf->stack, NULL, (unsigned long)sf); - - if (err) - goto segv; - - regs->tpc = tpc; - regs->tnpc = tnpc; - - /* Prevent syscall restart. */ - pt_regs_clear_syscall(regs); - - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - return; -segv: - force_sig(SIGSEGV, current); -} - -/* Checks if the fp is valid */ -static int invalid_frame_pointer(void __user *fp, int fplen) -{ - if (((unsigned long) fp) & 7) - return 1; - return 0; -} - -static inline int -save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) -{ - unsigned long *fpregs = current_thread_info()->fpregs; - unsigned long fprs; - int err = 0; - - fprs = current_thread_info()->fpsaved[0]; - if (fprs & FPRS_DL) - err |= copy_to_user(&fpu->si_float_regs[0], fpregs, - (sizeof(unsigned int) * 32)); - if (fprs & FPRS_DU) - err |= copy_to_user(&fpu->si_float_regs[32], fpregs+16, - (sizeof(unsigned int) * 32)); - err |= __put_user(current_thread_info()->xfsr[0], &fpu->si_fsr); - err |= __put_user(current_thread_info()->gsr[0], &fpu->si_gsr); - err |= __put_user(fprs, &fpu->si_fprs); - - return err; -} - -static inline void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, unsigned long framesize) -{ - unsigned long sp = regs->u_regs[UREG_FP] + STACK_BIAS; - - /* - * If we are on the alternate signal stack and would overflow it, don't. - * Return an always-bogus address instead so we will die with SIGSEGV. - */ - if (on_sig_stack(sp) && !likely(on_sig_stack(sp - framesize))) - return (void __user *) -1L; - - /* This is the X/Open sanctioned signal stack switching. */ - if (ka->sa.sa_flags & SA_ONSTACK) { - if (sas_ss_flags(sp) == 0) - sp = current->sas_ss_sp + current->sas_ss_size; - } - - /* Always align the stack frame. This handles two cases. First, - * sigaltstack need not be mindful of platform specific stack - * alignment. Second, if we took this signal because the stack - * is not aligned properly, we'd like to take the signal cleanly - * and report that. - */ - sp &= ~7UL; - - return (void __user *)(sp - framesize); -} - -static inline void -setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, - int signo, sigset_t *oldset, siginfo_t *info) -{ - struct rt_signal_frame __user *sf; - int sigframe_size, err; - - /* 1. Make sure everything is clean */ - synchronize_user_stack(); - save_and_clear_fpu(); - - sigframe_size = sizeof(struct rt_signal_frame); - if (!(current_thread_info()->fpsaved[0] & FPRS_FEF)) - sigframe_size -= sizeof(__siginfo_fpu_t); - - sf = (struct rt_signal_frame __user *) - get_sigframe(ka, regs, sigframe_size); - - if (invalid_frame_pointer (sf, sigframe_size)) - goto sigill; - - if (get_thread_wsaved() != 0) - goto sigill; - - /* 2. Save the current process state */ - err = copy_to_user(&sf->regs, regs, sizeof (*regs)); - - if (current_thread_info()->fpsaved[0] & FPRS_FEF) { - err |= save_fpu_state(regs, &sf->fpu_state); - err |= __put_user((u64)&sf->fpu_state, &sf->fpu_save); - } else { - err |= __put_user(0, &sf->fpu_save); - } - - /* Setup sigaltstack */ - err |= __put_user(current->sas_ss_sp, &sf->stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->u_regs[UREG_FP]), &sf->stack.ss_flags); - err |= __put_user(current->sas_ss_size, &sf->stack.ss_size); - - err |= copy_to_user(&sf->mask, oldset, sizeof(sigset_t)); - - err |= copy_in_user((u64 __user *)sf, - (u64 __user *)(regs->u_regs[UREG_FP]+STACK_BIAS), - sizeof(struct reg_window)); - - if (info) - err |= copy_siginfo_to_user(&sf->info, info); - else { - err |= __put_user(signo, &sf->info.si_signo); - err |= __put_user(SI_NOINFO, &sf->info.si_code); - } - if (err) - goto sigsegv; - - /* 3. signal handler back-trampoline and parameters */ - regs->u_regs[UREG_FP] = ((unsigned long) sf) - STACK_BIAS; - regs->u_regs[UREG_I0] = signo; - regs->u_regs[UREG_I1] = (unsigned long) &sf->info; - - /* The sigcontext is passed in this way because of how it - * is defined in GLIBC's /usr/include/bits/sigcontext.h - * for sparc64. It includes the 128 bytes of siginfo_t. - */ - regs->u_regs[UREG_I2] = (unsigned long) &sf->info; - - /* 5. signal handler */ - regs->tpc = (unsigned long) ka->sa.sa_handler; - regs->tnpc = (regs->tpc + 4); - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - /* 4. return to kernel instructions */ - regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer; - return; - -sigill: - do_exit(SIGILL); -sigsegv: - force_sigsegv(signo, current); -} - -static inline void handle_signal(unsigned long signr, struct k_sigaction *ka, - siginfo_t *info, - sigset_t *oldset, struct pt_regs *regs) -{ - setup_rt_frame(ka, regs, signr, oldset, - (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL); - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NOMASK)) - sigaddset(¤t->blocked,signr); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); -} - -static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs, - struct sigaction *sa) -{ - switch (regs->u_regs[UREG_I0]) { - case ERESTART_RESTARTBLOCK: - case ERESTARTNOHAND: - no_system_call_restart: - regs->u_regs[UREG_I0] = EINTR; - regs->tstate |= (TSTATE_ICARRY|TSTATE_XCARRY); - break; - case ERESTARTSYS: - if (!(sa->sa_flags & SA_RESTART)) - goto no_system_call_restart; - /* fallthrough */ - case ERESTARTNOINTR: - regs->u_regs[UREG_I0] = orig_i0; - regs->tpc -= 4; - regs->tnpc -= 4; - } -} - -/* Note that 'init' is a special process: it doesn't get signals it doesn't - * want to handle. Thus you cannot kill init even with a SIGKILL even by - * mistake. - */ -static void do_signal(struct pt_regs *regs, unsigned long orig_i0) -{ - struct k_sigaction ka; - int restart_syscall; - sigset_t *oldset; - siginfo_t info; - int signr; - - if (pt_regs_is_syscall(regs) && - (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) { - restart_syscall = 1; - } else - restart_syscall = 0; - - if (current_thread_info()->status & TS_RESTORE_SIGMASK) - oldset = ¤t->saved_sigmask; - else - oldset = ¤t->blocked; - -#ifdef CONFIG_COMPAT - if (test_thread_flag(TIF_32BIT)) { - extern void do_signal32(sigset_t *, struct pt_regs *, - int restart_syscall, - unsigned long orig_i0); - do_signal32(oldset, regs, restart_syscall, orig_i0); - return; - } -#endif - - signr = get_signal_to_deliver(&info, &ka, regs, NULL); - - /* If the debugger messes with the program counter, it clears - * the software "in syscall" bit, directing us to not perform - * a syscall restart. - */ - if (restart_syscall && !pt_regs_is_syscall(regs)) - restart_syscall = 0; - - if (signr > 0) { - if (restart_syscall) - syscall_restart(orig_i0, regs, &ka.sa); - handle_signal(signr, &ka, &info, oldset, regs); - - /* A signal was successfully delivered; the saved - * sigmask will have been stored in the signal frame, - * and will be restored by sigreturn, so we can simply - * clear the TS_RESTORE_SIGMASK flag. - */ - current_thread_info()->status &= ~TS_RESTORE_SIGMASK; - - tracehook_signal_handler(signr, &info, &ka, regs, 0); - return; - } - if (restart_syscall && - (regs->u_regs[UREG_I0] == ERESTARTNOHAND || - regs->u_regs[UREG_I0] == ERESTARTSYS || - regs->u_regs[UREG_I0] == ERESTARTNOINTR)) { - /* replay the system call when we are done */ - regs->u_regs[UREG_I0] = orig_i0; - regs->tpc -= 4; - regs->tnpc -= 4; - } - if (restart_syscall && - regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) { - regs->u_regs[UREG_G1] = __NR_restart_syscall; - regs->tpc -= 4; - regs->tnpc -= 4; - } - - /* If there's no signal to deliver, we just put the saved sigmask - * back - */ - if (current_thread_info()->status & TS_RESTORE_SIGMASK) { - current_thread_info()->status &= ~TS_RESTORE_SIGMASK; - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); - } -} - -void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, unsigned long thread_info_flags) -{ - if (thread_info_flags & _TIF_SIGPENDING) - do_signal(regs, orig_i0); - if (thread_info_flags & _TIF_NOTIFY_RESUME) { - clear_thread_flag(TIF_NOTIFY_RESUME); - tracehook_notify_resume(regs); - } -} diff --git a/arch/sparc64/kernel/signal32.c b/arch/sparc64/kernel/signal32.c deleted file mode 100644 index ba5b09ad6666..000000000000 --- a/arch/sparc64/kernel/signal32.c +++ /dev/null @@ -1,899 +0,0 @@ -/* arch/sparc64/kernel/signal32.c - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) - * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/signal.h> -#include <linux/errno.h> -#include <linux/wait.h> -#include <linux/ptrace.h> -#include <linux/unistd.h> -#include <linux/mm.h> -#include <linux/tty.h> -#include <linux/binfmts.h> -#include <linux/compat.h> -#include <linux/bitops.h> -#include <linux/tracehook.h> - -#include <asm/uaccess.h> -#include <asm/ptrace.h> -#include <asm/pgtable.h> -#include <asm/psrcompat.h> -#include <asm/fpumacro.h> -#include <asm/visasm.h> -#include <asm/compat_signal.h> - -#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) - -/* This magic should be in g_upper[0] for all upper parts - * to be valid. - */ -#define SIGINFO_EXTRA_V8PLUS_MAGIC 0x130e269 -typedef struct { - unsigned int g_upper[8]; - unsigned int o_upper[8]; - unsigned int asi; -} siginfo_extra_v8plus_t; - -struct signal_frame32 { - struct sparc_stackf32 ss; - __siginfo32_t info; - /* __siginfo_fpu32_t * */ u32 fpu_save; - unsigned int insns[2]; - unsigned int extramask[_COMPAT_NSIG_WORDS - 1]; - unsigned int extra_size; /* Should be sizeof(siginfo_extra_v8plus_t) */ - /* Only valid if (info.si_regs.psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS */ - siginfo_extra_v8plus_t v8plus; - __siginfo_fpu_t fpu_state; -}; - -typedef struct compat_siginfo{ - int si_signo; - int si_errno; - int si_code; - - union { - int _pad[SI_PAD_SIZE32]; - - /* kill() */ - struct { - compat_pid_t _pid; /* sender's pid */ - unsigned int _uid; /* sender's uid */ - } _kill; - - /* POSIX.1b timers */ - struct { - compat_timer_t _tid; /* timer id */ - int _overrun; /* overrun count */ - compat_sigval_t _sigval; /* same as below */ - int _sys_private; /* not to be passed to user */ - } _timer; - - /* POSIX.1b signals */ - struct { - compat_pid_t _pid; /* sender's pid */ - unsigned int _uid; /* sender's uid */ - compat_sigval_t _sigval; - } _rt; - - /* SIGCHLD */ - struct { - compat_pid_t _pid; /* which child */ - unsigned int _uid; /* sender's uid */ - int _status; /* exit code */ - compat_clock_t _utime; - compat_clock_t _stime; - } _sigchld; - - /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGEMT */ - struct { - u32 _addr; /* faulting insn/memory ref. */ - int _trapno; - } _sigfault; - - /* SIGPOLL */ - struct { - int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ - int _fd; - } _sigpoll; - } _sifields; -}compat_siginfo_t; - -struct rt_signal_frame32 { - struct sparc_stackf32 ss; - compat_siginfo_t info; - struct pt_regs32 regs; - compat_sigset_t mask; - /* __siginfo_fpu32_t * */ u32 fpu_save; - unsigned int insns[2]; - stack_t32 stack; - unsigned int extra_size; /* Should be sizeof(siginfo_extra_v8plus_t) */ - /* Only valid if (regs.psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS */ - siginfo_extra_v8plus_t v8plus; - __siginfo_fpu_t fpu_state; -}; - -/* Align macros */ -#define SF_ALIGNEDSZ (((sizeof(struct signal_frame32) + 7) & (~7))) -#define RT_ALIGNEDSZ (((sizeof(struct rt_signal_frame32) + 7) & (~7))) - -int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from) -{ - int err; - - if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t))) - return -EFAULT; - - /* If you change siginfo_t structure, please be sure - this code is fixed accordingly. - It should never copy any pad contained in the structure - to avoid security leaks, but must copy the generic - 3 ints plus the relevant union member. - This routine must convert siginfo from 64bit to 32bit as well - at the same time. */ - err = __put_user(from->si_signo, &to->si_signo); - err |= __put_user(from->si_errno, &to->si_errno); - err |= __put_user((short)from->si_code, &to->si_code); - if (from->si_code < 0) - err |= __copy_to_user(&to->_sifields._pad, &from->_sifields._pad, SI_PAD_SIZE); - else { - switch (from->si_code >> 16) { - case __SI_TIMER >> 16: - err |= __put_user(from->si_tid, &to->si_tid); - err |= __put_user(from->si_overrun, &to->si_overrun); - err |= __put_user(from->si_int, &to->si_int); - break; - case __SI_CHLD >> 16: - err |= __put_user(from->si_utime, &to->si_utime); - err |= __put_user(from->si_stime, &to->si_stime); - err |= __put_user(from->si_status, &to->si_status); - default: - err |= __put_user(from->si_pid, &to->si_pid); - err |= __put_user(from->si_uid, &to->si_uid); - break; - case __SI_FAULT >> 16: - err |= __put_user(from->si_trapno, &to->si_trapno); - err |= __put_user((unsigned long)from->si_addr, &to->si_addr); - break; - case __SI_POLL >> 16: - err |= __put_user(from->si_band, &to->si_band); - err |= __put_user(from->si_fd, &to->si_fd); - break; - case __SI_RT >> 16: /* This is not generated by the kernel as of now. */ - case __SI_MESGQ >> 16: - err |= __put_user(from->si_pid, &to->si_pid); - err |= __put_user(from->si_uid, &to->si_uid); - err |= __put_user(from->si_int, &to->si_int); - break; - } - } - return err; -} - -/* CAUTION: This is just a very minimalist implementation for the - * sake of compat_sys_rt_sigqueueinfo() - */ -int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from) -{ - if (!access_ok(VERIFY_WRITE, from, sizeof(compat_siginfo_t))) - return -EFAULT; - - if (copy_from_user(to, from, 3*sizeof(int)) || - copy_from_user(to->_sifields._pad, from->_sifields._pad, - SI_PAD_SIZE)) - return -EFAULT; - - return 0; -} - -static int restore_fpu_state32(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) -{ - unsigned long *fpregs = current_thread_info()->fpregs; - unsigned long fprs; - int err; - - err = __get_user(fprs, &fpu->si_fprs); - fprs_write(0); - regs->tstate &= ~TSTATE_PEF; - if (fprs & FPRS_DL) - err |= copy_from_user(fpregs, &fpu->si_float_regs[0], (sizeof(unsigned int) * 32)); - if (fprs & FPRS_DU) - err |= copy_from_user(fpregs+16, &fpu->si_float_regs[32], (sizeof(unsigned int) * 32)); - err |= __get_user(current_thread_info()->xfsr[0], &fpu->si_fsr); - err |= __get_user(current_thread_info()->gsr[0], &fpu->si_gsr); - current_thread_info()->fpsaved[0] |= fprs; - return err; -} - -void do_sigreturn32(struct pt_regs *regs) -{ - struct signal_frame32 __user *sf; - unsigned int psr; - unsigned pc, npc, fpu_save; - sigset_t set; - unsigned seta[_COMPAT_NSIG_WORDS]; - int err, i; - - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - - synchronize_user_stack(); - - regs->u_regs[UREG_FP] &= 0x00000000ffffffffUL; - sf = (struct signal_frame32 __user *) regs->u_regs[UREG_FP]; - - /* 1. Make sure we are not getting garbage from the user */ - if (!access_ok(VERIFY_READ, sf, sizeof(*sf)) || - (((unsigned long) sf) & 3)) - goto segv; - - get_user(pc, &sf->info.si_regs.pc); - __get_user(npc, &sf->info.si_regs.npc); - - if ((pc | npc) & 3) - goto segv; - - if (test_thread_flag(TIF_32BIT)) { - pc &= 0xffffffff; - npc &= 0xffffffff; - } - regs->tpc = pc; - regs->tnpc = npc; - - /* 2. Restore the state */ - err = __get_user(regs->y, &sf->info.si_regs.y); - err |= __get_user(psr, &sf->info.si_regs.psr); - - for (i = UREG_G1; i <= UREG_I7; i++) - err |= __get_user(regs->u_regs[i], &sf->info.si_regs.u_regs[i]); - if ((psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS) { - err |= __get_user(i, &sf->v8plus.g_upper[0]); - if (i == SIGINFO_EXTRA_V8PLUS_MAGIC) { - unsigned long asi; - - for (i = UREG_G1; i <= UREG_I7; i++) - err |= __get_user(((u32 *)regs->u_regs)[2*i], &sf->v8plus.g_upper[i]); - err |= __get_user(asi, &sf->v8plus.asi); - regs->tstate &= ~TSTATE_ASI; - regs->tstate |= ((asi & 0xffUL) << 24UL); - } - } - - /* User can only change condition codes in %tstate. */ - regs->tstate &= ~(TSTATE_ICC|TSTATE_XCC); - regs->tstate |= psr_to_tstate_icc(psr); - - /* Prevent syscall restart. */ - pt_regs_clear_syscall(regs); - - err |= __get_user(fpu_save, &sf->fpu_save); - if (fpu_save) - err |= restore_fpu_state32(regs, &sf->fpu_state); - err |= __get_user(seta[0], &sf->info.si_mask); - err |= copy_from_user(seta+1, &sf->extramask, - (_COMPAT_NSIG_WORDS - 1) * sizeof(unsigned int)); - if (err) - goto segv; - switch (_NSIG_WORDS) { - case 4: set.sig[3] = seta[6] + (((long)seta[7]) << 32); - case 3: set.sig[2] = seta[4] + (((long)seta[5]) << 32); - case 2: set.sig[1] = seta[2] + (((long)seta[3]) << 32); - case 1: set.sig[0] = seta[0] + (((long)seta[1]) << 32); - } - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - return; - -segv: - force_sig(SIGSEGV, current); -} - -asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) -{ - struct rt_signal_frame32 __user *sf; - unsigned int psr, pc, npc, fpu_save, u_ss_sp; - mm_segment_t old_fs; - sigset_t set; - compat_sigset_t seta; - stack_t st; - int err, i; - - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - - synchronize_user_stack(); - regs->u_regs[UREG_FP] &= 0x00000000ffffffffUL; - sf = (struct rt_signal_frame32 __user *) regs->u_regs[UREG_FP]; - - /* 1. Make sure we are not getting garbage from the user */ - if (!access_ok(VERIFY_READ, sf, sizeof(*sf)) || - (((unsigned long) sf) & 3)) - goto segv; - - get_user(pc, &sf->regs.pc); - __get_user(npc, &sf->regs.npc); - - if ((pc | npc) & 3) - goto segv; - - if (test_thread_flag(TIF_32BIT)) { - pc &= 0xffffffff; - npc &= 0xffffffff; - } - regs->tpc = pc; - regs->tnpc = npc; - - /* 2. Restore the state */ - err = __get_user(regs->y, &sf->regs.y); - err |= __get_user(psr, &sf->regs.psr); - - for (i = UREG_G1; i <= UREG_I7; i++) - err |= __get_user(regs->u_regs[i], &sf->regs.u_regs[i]); - if ((psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS) { - err |= __get_user(i, &sf->v8plus.g_upper[0]); - if (i == SIGINFO_EXTRA_V8PLUS_MAGIC) { - unsigned long asi; - - for (i = UREG_G1; i <= UREG_I7; i++) - err |= __get_user(((u32 *)regs->u_regs)[2*i], &sf->v8plus.g_upper[i]); - err |= __get_user(asi, &sf->v8plus.asi); - regs->tstate &= ~TSTATE_ASI; - regs->tstate |= ((asi & 0xffUL) << 24UL); - } - } - - /* User can only change condition codes in %tstate. */ - regs->tstate &= ~(TSTATE_ICC|TSTATE_XCC); - regs->tstate |= psr_to_tstate_icc(psr); - - /* Prevent syscall restart. */ - pt_regs_clear_syscall(regs); - - err |= __get_user(fpu_save, &sf->fpu_save); - if (fpu_save) - err |= restore_fpu_state32(regs, &sf->fpu_state); - err |= copy_from_user(&seta, &sf->mask, sizeof(compat_sigset_t)); - err |= __get_user(u_ss_sp, &sf->stack.ss_sp); - st.ss_sp = compat_ptr(u_ss_sp); - err |= __get_user(st.ss_flags, &sf->stack.ss_flags); - err |= __get_user(st.ss_size, &sf->stack.ss_size); - if (err) - goto segv; - - /* It is more difficult to avoid calling this function than to - call it and ignore errors. */ - old_fs = get_fs(); - set_fs(KERNEL_DS); - do_sigaltstack((stack_t __user *) &st, NULL, (unsigned long)sf); - set_fs(old_fs); - - switch (_NSIG_WORDS) { - case 4: set.sig[3] = seta.sig[6] + (((long)seta.sig[7]) << 32); - case 3: set.sig[2] = seta.sig[4] + (((long)seta.sig[5]) << 32); - case 2: set.sig[1] = seta.sig[2] + (((long)seta.sig[3]) << 32); - case 1: set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32); - } - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - return; -segv: - force_sig(SIGSEGV, current); -} - -/* Checks if the fp is valid */ -static int invalid_frame_pointer(void __user *fp, int fplen) -{ - if ((((unsigned long) fp) & 7) || ((unsigned long)fp) > 0x100000000ULL - fplen) - return 1; - return 0; -} - -static void __user *get_sigframe(struct sigaction *sa, struct pt_regs *regs, unsigned long framesize) -{ - unsigned long sp; - - regs->u_regs[UREG_FP] &= 0x00000000ffffffffUL; - sp = regs->u_regs[UREG_FP]; - - /* - * If we are on the alternate signal stack and would overflow it, don't. - * Return an always-bogus address instead so we will die with SIGSEGV. - */ - if (on_sig_stack(sp) && !likely(on_sig_stack(sp - framesize))) - return (void __user *) -1L; - - /* This is the X/Open sanctioned signal stack switching. */ - if (sa->sa_flags & SA_ONSTACK) { - if (sas_ss_flags(sp) == 0) - sp = current->sas_ss_sp + current->sas_ss_size; - } - - /* Always align the stack frame. This handles two cases. First, - * sigaltstack need not be mindful of platform specific stack - * alignment. Second, if we took this signal because the stack - * is not aligned properly, we'd like to take the signal cleanly - * and report that. - */ - sp &= ~7UL; - - return (void __user *)(sp - framesize); -} - -static int save_fpu_state32(struct pt_regs *regs, __siginfo_fpu_t __user *fpu) -{ - unsigned long *fpregs = current_thread_info()->fpregs; - unsigned long fprs; - int err = 0; - - fprs = current_thread_info()->fpsaved[0]; - if (fprs & FPRS_DL) - err |= copy_to_user(&fpu->si_float_regs[0], fpregs, - (sizeof(unsigned int) * 32)); - if (fprs & FPRS_DU) - err |= copy_to_user(&fpu->si_float_regs[32], fpregs+16, - (sizeof(unsigned int) * 32)); - err |= __put_user(current_thread_info()->xfsr[0], &fpu->si_fsr); - err |= __put_user(current_thread_info()->gsr[0], &fpu->si_gsr); - err |= __put_user(fprs, &fpu->si_fprs); - - return err; -} - -static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, - int signo, sigset_t *oldset) -{ - struct signal_frame32 __user *sf; - int sigframe_size; - u32 psr; - int i, err; - unsigned int seta[_COMPAT_NSIG_WORDS]; - - /* 1. Make sure everything is clean */ - synchronize_user_stack(); - save_and_clear_fpu(); - - sigframe_size = SF_ALIGNEDSZ; - if (!(current_thread_info()->fpsaved[0] & FPRS_FEF)) - sigframe_size -= sizeof(__siginfo_fpu_t); - - sf = (struct signal_frame32 __user *) - get_sigframe(&ka->sa, regs, sigframe_size); - - if (invalid_frame_pointer(sf, sigframe_size)) - goto sigill; - - if (get_thread_wsaved() != 0) - goto sigill; - - /* 2. Save the current process state */ - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - err = put_user(regs->tpc, &sf->info.si_regs.pc); - err |= __put_user(regs->tnpc, &sf->info.si_regs.npc); - err |= __put_user(regs->y, &sf->info.si_regs.y); - psr = tstate_to_psr(regs->tstate); - if (current_thread_info()->fpsaved[0] & FPRS_FEF) - psr |= PSR_EF; - err |= __put_user(psr, &sf->info.si_regs.psr); - for (i = 0; i < 16; i++) - err |= __put_user(regs->u_regs[i], &sf->info.si_regs.u_regs[i]); - err |= __put_user(sizeof(siginfo_extra_v8plus_t), &sf->extra_size); - err |= __put_user(SIGINFO_EXTRA_V8PLUS_MAGIC, &sf->v8plus.g_upper[0]); - for (i = 1; i < 16; i++) - err |= __put_user(((u32 *)regs->u_regs)[2*i], - &sf->v8plus.g_upper[i]); - err |= __put_user((regs->tstate & TSTATE_ASI) >> 24UL, - &sf->v8plus.asi); - - if (psr & PSR_EF) { - err |= save_fpu_state32(regs, &sf->fpu_state); - err |= __put_user((u64)&sf->fpu_state, &sf->fpu_save); - } else { - err |= __put_user(0, &sf->fpu_save); - } - - switch (_NSIG_WORDS) { - case 4: seta[7] = (oldset->sig[3] >> 32); - seta[6] = oldset->sig[3]; - case 3: seta[5] = (oldset->sig[2] >> 32); - seta[4] = oldset->sig[2]; - case 2: seta[3] = (oldset->sig[1] >> 32); - seta[2] = oldset->sig[1]; - case 1: seta[1] = (oldset->sig[0] >> 32); - seta[0] = oldset->sig[0]; - } - err |= __put_user(seta[0], &sf->info.si_mask); - err |= __copy_to_user(sf->extramask, seta + 1, - (_COMPAT_NSIG_WORDS - 1) * sizeof(unsigned int)); - - err |= copy_in_user((u32 __user *)sf, - (u32 __user *)(regs->u_regs[UREG_FP]), - sizeof(struct reg_window32)); - - if (err) - goto sigsegv; - - /* 3. signal handler back-trampoline and parameters */ - regs->u_regs[UREG_FP] = (unsigned long) sf; - regs->u_regs[UREG_I0] = signo; - regs->u_regs[UREG_I1] = (unsigned long) &sf->info; - regs->u_regs[UREG_I2] = (unsigned long) &sf->info; - - /* 4. signal handler */ - regs->tpc = (unsigned long) ka->sa.sa_handler; - regs->tnpc = (regs->tpc + 4); - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - - /* 5. return to kernel instructions */ - if (ka->ka_restorer) { - regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer; - } else { - /* Flush instruction space. */ - unsigned long address = ((unsigned long)&(sf->insns[0])); - pgd_t *pgdp = pgd_offset(current->mm, address); - pud_t *pudp = pud_offset(pgdp, address); - pmd_t *pmdp = pmd_offset(pudp, address); - pte_t *ptep; - pte_t pte; - - regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2); - - err = __put_user(0x821020d8, &sf->insns[0]); /*mov __NR_sigreturn, %g1*/ - err |= __put_user(0x91d02010, &sf->insns[1]); /*t 0x10*/ - if (err) - goto sigsegv; - - preempt_disable(); - ptep = pte_offset_map(pmdp, address); - pte = *ptep; - if (pte_present(pte)) { - unsigned long page = (unsigned long) - page_address(pte_page(pte)); - - wmb(); - __asm__ __volatile__("flush %0 + %1" - : /* no outputs */ - : "r" (page), - "r" (address & (PAGE_SIZE - 1)) - : "memory"); - } - pte_unmap(ptep); - preempt_enable(); - } - return; - -sigill: - do_exit(SIGILL); -sigsegv: - force_sigsegv(signo, current); -} - -static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs, - unsigned long signr, sigset_t *oldset, - siginfo_t *info) -{ - struct rt_signal_frame32 __user *sf; - int sigframe_size; - u32 psr; - int i, err; - compat_sigset_t seta; - - /* 1. Make sure everything is clean */ - synchronize_user_stack(); - save_and_clear_fpu(); - - sigframe_size = RT_ALIGNEDSZ; - if (!(current_thread_info()->fpsaved[0] & FPRS_FEF)) - sigframe_size -= sizeof(__siginfo_fpu_t); - - sf = (struct rt_signal_frame32 __user *) - get_sigframe(&ka->sa, regs, sigframe_size); - - if (invalid_frame_pointer(sf, sigframe_size)) - goto sigill; - - if (get_thread_wsaved() != 0) - goto sigill; - - /* 2. Save the current process state */ - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - err = put_user(regs->tpc, &sf->regs.pc); - err |= __put_user(regs->tnpc, &sf->regs.npc); - err |= __put_user(regs->y, &sf->regs.y); - psr = tstate_to_psr(regs->tstate); - if (current_thread_info()->fpsaved[0] & FPRS_FEF) - psr |= PSR_EF; - err |= __put_user(psr, &sf->regs.psr); - for (i = 0; i < 16; i++) - err |= __put_user(regs->u_regs[i], &sf->regs.u_regs[i]); - err |= __put_user(sizeof(siginfo_extra_v8plus_t), &sf->extra_size); - err |= __put_user(SIGINFO_EXTRA_V8PLUS_MAGIC, &sf->v8plus.g_upper[0]); - for (i = 1; i < 16; i++) - err |= __put_user(((u32 *)regs->u_regs)[2*i], - &sf->v8plus.g_upper[i]); - err |= __put_user((regs->tstate & TSTATE_ASI) >> 24UL, - &sf->v8plus.asi); - - if (psr & PSR_EF) { - err |= save_fpu_state32(regs, &sf->fpu_state); - err |= __put_user((u64)&sf->fpu_state, &sf->fpu_save); - } else { - err |= __put_user(0, &sf->fpu_save); - } - - /* Update the siginfo structure. */ - err |= copy_siginfo_to_user32(&sf->info, info); - - /* Setup sigaltstack */ - err |= __put_user(current->sas_ss_sp, &sf->stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->u_regs[UREG_FP]), &sf->stack.ss_flags); - err |= __put_user(current->sas_ss_size, &sf->stack.ss_size); - - switch (_NSIG_WORDS) { - case 4: seta.sig[7] = (oldset->sig[3] >> 32); - seta.sig[6] = oldset->sig[3]; - case 3: seta.sig[5] = (oldset->sig[2] >> 32); - seta.sig[4] = oldset->sig[2]; - case 2: seta.sig[3] = (oldset->sig[1] >> 32); - seta.sig[2] = oldset->sig[1]; - case 1: seta.sig[1] = (oldset->sig[0] >> 32); - seta.sig[0] = oldset->sig[0]; - } - err |= __copy_to_user(&sf->mask, &seta, sizeof(compat_sigset_t)); - - err |= copy_in_user((u32 __user *)sf, - (u32 __user *)(regs->u_regs[UREG_FP]), - sizeof(struct reg_window32)); - if (err) - goto sigsegv; - - /* 3. signal handler back-trampoline and parameters */ - regs->u_regs[UREG_FP] = (unsigned long) sf; - regs->u_regs[UREG_I0] = signr; - regs->u_regs[UREG_I1] = (unsigned long) &sf->info; - regs->u_regs[UREG_I2] = (unsigned long) &sf->regs; - - /* 4. signal handler */ - regs->tpc = (unsigned long) ka->sa.sa_handler; - regs->tnpc = (regs->tpc + 4); - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - - /* 5. return to kernel instructions */ - if (ka->ka_restorer) - regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer; - else { - /* Flush instruction space. */ - unsigned long address = ((unsigned long)&(sf->insns[0])); - pgd_t *pgdp = pgd_offset(current->mm, address); - pud_t *pudp = pud_offset(pgdp, address); - pmd_t *pmdp = pmd_offset(pudp, address); - pte_t *ptep; - - regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2); - - /* mov __NR_rt_sigreturn, %g1 */ - err |= __put_user(0x82102065, &sf->insns[0]); - - /* t 0x10 */ - err |= __put_user(0x91d02010, &sf->insns[1]); - if (err) - goto sigsegv; - - preempt_disable(); - ptep = pte_offset_map(pmdp, address); - if (pte_present(*ptep)) { - unsigned long page = (unsigned long) - page_address(pte_page(*ptep)); - - wmb(); - __asm__ __volatile__("flush %0 + %1" - : /* no outputs */ - : "r" (page), - "r" (address & (PAGE_SIZE - 1)) - : "memory"); - } - pte_unmap(ptep); - preempt_enable(); - } - return; - -sigill: - do_exit(SIGILL); -sigsegv: - force_sigsegv(signr, current); -} - -static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka, - siginfo_t *info, - sigset_t *oldset, struct pt_regs *regs) -{ - if (ka->sa.sa_flags & SA_SIGINFO) - setup_rt_frame32(ka, regs, signr, oldset, info); - else - setup_frame32(ka, regs, signr, oldset); - - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NOMASK)) - sigaddset(¤t->blocked,signr); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); -} - -static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs, - struct sigaction *sa) -{ - switch (regs->u_regs[UREG_I0]) { - case ERESTART_RESTARTBLOCK: - case ERESTARTNOHAND: - no_system_call_restart: - regs->u_regs[UREG_I0] = EINTR; - regs->tstate |= TSTATE_ICARRY; - break; - case ERESTARTSYS: - if (!(sa->sa_flags & SA_RESTART)) - goto no_system_call_restart; - /* fallthrough */ - case ERESTARTNOINTR: - regs->u_regs[UREG_I0] = orig_i0; - regs->tpc -= 4; - regs->tnpc -= 4; - } -} - -/* Note that 'init' is a special process: it doesn't get signals it doesn't - * want to handle. Thus you cannot kill init even with a SIGKILL even by - * mistake. - */ -void do_signal32(sigset_t *oldset, struct pt_regs * regs, - int restart_syscall, unsigned long orig_i0) -{ - struct k_sigaction ka; - siginfo_t info; - int signr; - - signr = get_signal_to_deliver(&info, &ka, regs, NULL); - - /* If the debugger messes with the program counter, it clears - * the "in syscall" bit, directing us to not perform a syscall - * restart. - */ - if (restart_syscall && !pt_regs_is_syscall(regs)) - restart_syscall = 0; - - if (signr > 0) { - if (restart_syscall) - syscall_restart32(orig_i0, regs, &ka.sa); - handle_signal32(signr, &ka, &info, oldset, regs); - - /* A signal was successfully delivered; the saved - * sigmask will have been stored in the signal frame, - * and will be restored by sigreturn, so we can simply - * clear the TS_RESTORE_SIGMASK flag. - */ - current_thread_info()->status &= ~TS_RESTORE_SIGMASK; - - tracehook_signal_handler(signr, &info, &ka, regs, 0); - return; - } - if (restart_syscall && - (regs->u_regs[UREG_I0] == ERESTARTNOHAND || - regs->u_regs[UREG_I0] == ERESTARTSYS || - regs->u_regs[UREG_I0] == ERESTARTNOINTR)) { - /* replay the system call when we are done */ - regs->u_regs[UREG_I0] = orig_i0; - regs->tpc -= 4; - regs->tnpc -= 4; - } - if (restart_syscall && - regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) { - regs->u_regs[UREG_G1] = __NR_restart_syscall; - regs->tpc -= 4; - regs->tnpc -= 4; - } - - /* If there's no signal to deliver, we just put the saved sigmask - * back - */ - if (current_thread_info()->status & TS_RESTORE_SIGMASK) { - current_thread_info()->status &= ~TS_RESTORE_SIGMASK; - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); - } -} - -struct sigstack32 { - u32 the_stack; - int cur_status; -}; - -asmlinkage int do_sys32_sigstack(u32 u_ssptr, u32 u_ossptr, unsigned long sp) -{ - struct sigstack32 __user *ssptr = - (struct sigstack32 __user *)((unsigned long)(u_ssptr)); - struct sigstack32 __user *ossptr = - (struct sigstack32 __user *)((unsigned long)(u_ossptr)); - int ret = -EFAULT; - - /* First see if old state is wanted. */ - if (ossptr) { - if (put_user(current->sas_ss_sp + current->sas_ss_size, - &ossptr->the_stack) || - __put_user(on_sig_stack(sp), &ossptr->cur_status)) - goto out; - } - - /* Now see if we want to update the new state. */ - if (ssptr) { - u32 ss_sp; - - if (get_user(ss_sp, &ssptr->the_stack)) - goto out; - - /* If the current stack was set with sigaltstack, don't - * swap stacks while we are on it. - */ - ret = -EPERM; - if (current->sas_ss_sp && on_sig_stack(sp)) - goto out; - - /* Since we don't know the extent of the stack, and we don't - * track onstack-ness, but rather calculate it, we must - * presume a size. Ho hum this interface is lossy. - */ - current->sas_ss_sp = (unsigned long)ss_sp - SIGSTKSZ; - current->sas_ss_size = SIGSTKSZ; - } - - ret = 0; -out: - return ret; -} - -asmlinkage long do_sys32_sigaltstack(u32 ussa, u32 uossa, unsigned long sp) -{ - stack_t uss, uoss; - u32 u_ss_sp = 0; - int ret; - mm_segment_t old_fs; - stack_t32 __user *uss32 = compat_ptr(ussa); - stack_t32 __user *uoss32 = compat_ptr(uossa); - - if (ussa && (get_user(u_ss_sp, &uss32->ss_sp) || - __get_user(uss.ss_flags, &uss32->ss_flags) || - __get_user(uss.ss_size, &uss32->ss_size))) - return -EFAULT; - uss.ss_sp = compat_ptr(u_ss_sp); - old_fs = get_fs(); - set_fs(KERNEL_DS); - ret = do_sigaltstack(ussa ? (stack_t __user *) &uss : NULL, - uossa ? (stack_t __user *) &uoss : NULL, sp); - set_fs(old_fs); - if (!ret && uossa && (put_user(ptr_to_compat(uoss.ss_sp), &uoss32->ss_sp) || - __put_user(uoss.ss_flags, &uoss32->ss_flags) || - __put_user(uoss.ss_size, &uoss32->ss_size))) - return -EFAULT; - return ret; -} diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c deleted file mode 100644 index f500b0618bb0..000000000000 --- a/arch/sparc64/kernel/smp.c +++ /dev/null @@ -1,1413 +0,0 @@ -/* smp.c: Sparc64 SMP support. - * - * Copyright (C) 1997, 2007, 2008 David S. Miller (davem@davemloft.net) - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/pagemap.h> -#include <linux/threads.h> -#include <linux/smp.h> -#include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/fs.h> -#include <linux/seq_file.h> -#include <linux/cache.h> -#include <linux/jiffies.h> -#include <linux/profile.h> -#include <linux/lmb.h> -#include <linux/cpu.h> - -#include <asm/head.h> -#include <asm/ptrace.h> -#include <asm/atomic.h> -#include <asm/tlbflush.h> -#include <asm/mmu_context.h> -#include <asm/cpudata.h> -#include <asm/hvtramp.h> -#include <asm/io.h> -#include <asm/timer.h> - -#include <asm/irq.h> -#include <asm/irq_regs.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/oplib.h> -#include <asm/uaccess.h> -#include <asm/starfire.h> -#include <asm/tlb.h> -#include <asm/sections.h> -#include <asm/prom.h> -#include <asm/mdesc.h> -#include <asm/ldc.h> -#include <asm/hypervisor.h> - -int sparc64_multi_core __read_mostly; - -cpumask_t cpu_possible_map __read_mostly = CPU_MASK_NONE; -cpumask_t cpu_online_map __read_mostly = CPU_MASK_NONE; -DEFINE_PER_CPU(cpumask_t, cpu_sibling_map) = CPU_MASK_NONE; -cpumask_t cpu_core_map[NR_CPUS] __read_mostly = - { [0 ... NR_CPUS-1] = CPU_MASK_NONE }; - -EXPORT_SYMBOL(cpu_possible_map); -EXPORT_SYMBOL(cpu_online_map); -EXPORT_PER_CPU_SYMBOL(cpu_sibling_map); -EXPORT_SYMBOL(cpu_core_map); - -static cpumask_t smp_commenced_mask; - -void smp_info(struct seq_file *m) -{ - int i; - - seq_printf(m, "State:\n"); - for_each_online_cpu(i) - seq_printf(m, "CPU%d:\t\tonline\n", i); -} - -void smp_bogo(struct seq_file *m) -{ - int i; - - for_each_online_cpu(i) - seq_printf(m, - "Cpu%dClkTck\t: %016lx\n", - i, cpu_data(i).clock_tick); -} - -extern void setup_sparc64_timer(void); - -static volatile unsigned long callin_flag = 0; - -void __cpuinit smp_callin(void) -{ - int cpuid = hard_smp_processor_id(); - - __local_per_cpu_offset = __per_cpu_offset(cpuid); - - if (tlb_type == hypervisor) - sun4v_ktsb_register(); - - __flush_tlb_all(); - - setup_sparc64_timer(); - - if (cheetah_pcache_forced_on) - cheetah_enable_pcache(); - - local_irq_enable(); - - callin_flag = 1; - __asm__ __volatile__("membar #Sync\n\t" - "flush %%g6" : : : "memory"); - - /* Clear this or we will die instantly when we - * schedule back to this idler... - */ - current_thread_info()->new_child = 0; - - /* Attach to the address space of init_task. */ - atomic_inc(&init_mm.mm_count); - current->active_mm = &init_mm; - - /* inform the notifiers about the new cpu */ - notify_cpu_starting(cpuid); - - while (!cpu_isset(cpuid, smp_commenced_mask)) - rmb(); - - ipi_call_lock(); - cpu_set(cpuid, cpu_online_map); - ipi_call_unlock(); - - /* idle thread is expected to have preempt disabled */ - preempt_disable(); -} - -void cpu_panic(void) -{ - printk("CPU[%d]: Returns from cpu_idle!\n", smp_processor_id()); - panic("SMP bolixed\n"); -} - -/* This tick register synchronization scheme is taken entirely from - * the ia64 port, see arch/ia64/kernel/smpboot.c for details and credit. - * - * The only change I've made is to rework it so that the master - * initiates the synchonization instead of the slave. -DaveM - */ - -#define MASTER 0 -#define SLAVE (SMP_CACHE_BYTES/sizeof(unsigned long)) - -#define NUM_ROUNDS 64 /* magic value */ -#define NUM_ITERS 5 /* likewise */ - -static DEFINE_SPINLOCK(itc_sync_lock); -static unsigned long go[SLAVE + 1]; - -#define DEBUG_TICK_SYNC 0 - -static inline long get_delta (long *rt, long *master) -{ - unsigned long best_t0 = 0, best_t1 = ~0UL, best_tm = 0; - unsigned long tcenter, t0, t1, tm; - unsigned long i; - - for (i = 0; i < NUM_ITERS; i++) { - t0 = tick_ops->get_tick(); - go[MASTER] = 1; - membar_storeload(); - while (!(tm = go[SLAVE])) - rmb(); - go[SLAVE] = 0; - wmb(); - t1 = tick_ops->get_tick(); - - if (t1 - t0 < best_t1 - best_t0) - best_t0 = t0, best_t1 = t1, best_tm = tm; - } - - *rt = best_t1 - best_t0; - *master = best_tm - best_t0; - - /* average best_t0 and best_t1 without overflow: */ - tcenter = (best_t0/2 + best_t1/2); - if (best_t0 % 2 + best_t1 % 2 == 2) - tcenter++; - return tcenter - best_tm; -} - -void smp_synchronize_tick_client(void) -{ - long i, delta, adj, adjust_latency = 0, done = 0; - unsigned long flags, rt, master_time_stamp, bound; -#if DEBUG_TICK_SYNC - struct { - long rt; /* roundtrip time */ - long master; /* master's timestamp */ - long diff; /* difference between midpoint and master's timestamp */ - long lat; /* estimate of itc adjustment latency */ - } t[NUM_ROUNDS]; -#endif - - go[MASTER] = 1; - - while (go[MASTER]) - rmb(); - - local_irq_save(flags); - { - for (i = 0; i < NUM_ROUNDS; i++) { - delta = get_delta(&rt, &master_time_stamp); - if (delta == 0) { - done = 1; /* let's lock on to this... */ - bound = rt; - } - - if (!done) { - if (i > 0) { - adjust_latency += -delta; - adj = -delta + adjust_latency/4; - } else - adj = -delta; - - tick_ops->add_tick(adj); - } -#if DEBUG_TICK_SYNC - t[i].rt = rt; - t[i].master = master_time_stamp; - t[i].diff = delta; - t[i].lat = adjust_latency/4; -#endif - } - } - local_irq_restore(flags); - -#if DEBUG_TICK_SYNC - for (i = 0; i < NUM_ROUNDS; i++) - printk("rt=%5ld master=%5ld diff=%5ld adjlat=%5ld\n", - t[i].rt, t[i].master, t[i].diff, t[i].lat); -#endif - - printk(KERN_INFO "CPU %d: synchronized TICK with master CPU " - "(last diff %ld cycles, maxerr %lu cycles)\n", - smp_processor_id(), delta, rt); -} - -static void smp_start_sync_tick_client(int cpu); - -static void smp_synchronize_one_tick(int cpu) -{ - unsigned long flags, i; - - go[MASTER] = 0; - - smp_start_sync_tick_client(cpu); - - /* wait for client to be ready */ - while (!go[MASTER]) - rmb(); - - /* now let the client proceed into his loop */ - go[MASTER] = 0; - membar_storeload(); - - spin_lock_irqsave(&itc_sync_lock, flags); - { - for (i = 0; i < NUM_ROUNDS*NUM_ITERS; i++) { - while (!go[MASTER]) - rmb(); - go[MASTER] = 0; - wmb(); - go[SLAVE] = tick_ops->get_tick(); - membar_storeload(); - } - } - spin_unlock_irqrestore(&itc_sync_lock, flags); -} - -#if defined(CONFIG_SUN_LDOMS) && defined(CONFIG_HOTPLUG_CPU) -/* XXX Put this in some common place. XXX */ -static unsigned long kimage_addr_to_ra(void *p) -{ - unsigned long val = (unsigned long) p; - - return kern_base + (val - KERNBASE); -} - -static void __cpuinit ldom_startcpu_cpuid(unsigned int cpu, unsigned long thread_reg) -{ - extern unsigned long sparc64_ttable_tl0; - extern unsigned long kern_locked_tte_data; - struct hvtramp_descr *hdesc; - unsigned long trampoline_ra; - struct trap_per_cpu *tb; - u64 tte_vaddr, tte_data; - unsigned long hv_err; - int i; - - hdesc = kzalloc(sizeof(*hdesc) + - (sizeof(struct hvtramp_mapping) * - num_kernel_image_mappings - 1), - GFP_KERNEL); - if (!hdesc) { - printk(KERN_ERR "ldom_startcpu_cpuid: Cannot allocate " - "hvtramp_descr.\n"); - return; - } - - hdesc->cpu = cpu; - hdesc->num_mappings = num_kernel_image_mappings; - - tb = &trap_block[cpu]; - tb->hdesc = hdesc; - - hdesc->fault_info_va = (unsigned long) &tb->fault_info; - hdesc->fault_info_pa = kimage_addr_to_ra(&tb->fault_info); - - hdesc->thread_reg = thread_reg; - - tte_vaddr = (unsigned long) KERNBASE; - tte_data = kern_locked_tte_data; - - for (i = 0; i < hdesc->num_mappings; i++) { - hdesc->maps[i].vaddr = tte_vaddr; - hdesc->maps[i].tte = tte_data; - tte_vaddr += 0x400000; - tte_data += 0x400000; - } - - trampoline_ra = kimage_addr_to_ra(hv_cpu_startup); - - hv_err = sun4v_cpu_start(cpu, trampoline_ra, - kimage_addr_to_ra(&sparc64_ttable_tl0), - __pa(hdesc)); - if (hv_err) - printk(KERN_ERR "ldom_startcpu_cpuid: sun4v_cpu_start() " - "gives error %lu\n", hv_err); -} -#endif - -extern unsigned long sparc64_cpu_startup; - -/* The OBP cpu startup callback truncates the 3rd arg cookie to - * 32-bits (I think) so to be safe we have it read the pointer - * contained here so we work on >4GB machines. -DaveM - */ -static struct thread_info *cpu_new_thread = NULL; - -static int __cpuinit smp_boot_one_cpu(unsigned int cpu) -{ - struct trap_per_cpu *tb = &trap_block[cpu]; - unsigned long entry = - (unsigned long)(&sparc64_cpu_startup); - unsigned long cookie = - (unsigned long)(&cpu_new_thread); - struct task_struct *p; - int timeout, ret; - - p = fork_idle(cpu); - if (IS_ERR(p)) - return PTR_ERR(p); - callin_flag = 0; - cpu_new_thread = task_thread_info(p); - - if (tlb_type == hypervisor) { -#if defined(CONFIG_SUN_LDOMS) && defined(CONFIG_HOTPLUG_CPU) - if (ldom_domaining_enabled) - ldom_startcpu_cpuid(cpu, - (unsigned long) cpu_new_thread); - else -#endif - prom_startcpu_cpuid(cpu, entry, cookie); - } else { - struct device_node *dp = of_find_node_by_cpuid(cpu); - - prom_startcpu(dp->node, entry, cookie); - } - - for (timeout = 0; timeout < 50000; timeout++) { - if (callin_flag) - break; - udelay(100); - } - - if (callin_flag) { - ret = 0; - } else { - printk("Processor %d is stuck.\n", cpu); - ret = -ENODEV; - } - cpu_new_thread = NULL; - - if (tb->hdesc) { - kfree(tb->hdesc); - tb->hdesc = NULL; - } - - return ret; -} - -static void spitfire_xcall_helper(u64 data0, u64 data1, u64 data2, u64 pstate, unsigned long cpu) -{ - u64 result, target; - int stuck, tmp; - - if (this_is_starfire) { - /* map to real upaid */ - cpu = (((cpu & 0x3c) << 1) | - ((cpu & 0x40) >> 4) | - (cpu & 0x3)); - } - - target = (cpu << 14) | 0x70; -again: - /* Ok, this is the real Spitfire Errata #54. - * One must read back from a UDB internal register - * after writes to the UDB interrupt dispatch, but - * before the membar Sync for that write. - * So we use the high UDB control register (ASI 0x7f, - * ADDR 0x20) for the dummy read. -DaveM - */ - tmp = 0x40; - __asm__ __volatile__( - "wrpr %1, %2, %%pstate\n\t" - "stxa %4, [%0] %3\n\t" - "stxa %5, [%0+%8] %3\n\t" - "add %0, %8, %0\n\t" - "stxa %6, [%0+%8] %3\n\t" - "membar #Sync\n\t" - "stxa %%g0, [%7] %3\n\t" - "membar #Sync\n\t" - "mov 0x20, %%g1\n\t" - "ldxa [%%g1] 0x7f, %%g0\n\t" - "membar #Sync" - : "=r" (tmp) - : "r" (pstate), "i" (PSTATE_IE), "i" (ASI_INTR_W), - "r" (data0), "r" (data1), "r" (data2), "r" (target), - "r" (0x10), "0" (tmp) - : "g1"); - - /* NOTE: PSTATE_IE is still clear. */ - stuck = 100000; - do { - __asm__ __volatile__("ldxa [%%g0] %1, %0" - : "=r" (result) - : "i" (ASI_INTR_DISPATCH_STAT)); - if (result == 0) { - __asm__ __volatile__("wrpr %0, 0x0, %%pstate" - : : "r" (pstate)); - return; - } - stuck -= 1; - if (stuck == 0) - break; - } while (result & 0x1); - __asm__ __volatile__("wrpr %0, 0x0, %%pstate" - : : "r" (pstate)); - if (stuck == 0) { - printk("CPU[%d]: mondo stuckage result[%016lx]\n", - smp_processor_id(), result); - } else { - udelay(2); - goto again; - } -} - -static void spitfire_xcall_deliver(struct trap_per_cpu *tb, int cnt) -{ - u64 *mondo, data0, data1, data2; - u16 *cpu_list; - u64 pstate; - int i; - - __asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate)); - cpu_list = __va(tb->cpu_list_pa); - mondo = __va(tb->cpu_mondo_block_pa); - data0 = mondo[0]; - data1 = mondo[1]; - data2 = mondo[2]; - for (i = 0; i < cnt; i++) - spitfire_xcall_helper(data0, data1, data2, pstate, cpu_list[i]); -} - -/* Cheetah now allows to send the whole 64-bytes of data in the interrupt - * packet, but we have no use for that. However we do take advantage of - * the new pipelining feature (ie. dispatch to multiple cpus simultaneously). - */ -static void cheetah_xcall_deliver(struct trap_per_cpu *tb, int cnt) -{ - int nack_busy_id, is_jbus, need_more; - u64 *mondo, pstate, ver, busy_mask; - u16 *cpu_list; - - cpu_list = __va(tb->cpu_list_pa); - mondo = __va(tb->cpu_mondo_block_pa); - - /* Unfortunately, someone at Sun had the brilliant idea to make the - * busy/nack fields hard-coded by ITID number for this Ultra-III - * derivative processor. - */ - __asm__ ("rdpr %%ver, %0" : "=r" (ver)); - is_jbus = ((ver >> 32) == __JALAPENO_ID || - (ver >> 32) == __SERRANO_ID); - - __asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate)); - -retry: - need_more = 0; - __asm__ __volatile__("wrpr %0, %1, %%pstate\n\t" - : : "r" (pstate), "i" (PSTATE_IE)); - - /* Setup the dispatch data registers. */ - __asm__ __volatile__("stxa %0, [%3] %6\n\t" - "stxa %1, [%4] %6\n\t" - "stxa %2, [%5] %6\n\t" - "membar #Sync\n\t" - : /* no outputs */ - : "r" (mondo[0]), "r" (mondo[1]), "r" (mondo[2]), - "r" (0x40), "r" (0x50), "r" (0x60), - "i" (ASI_INTR_W)); - - nack_busy_id = 0; - busy_mask = 0; - { - int i; - - for (i = 0; i < cnt; i++) { - u64 target, nr; - - nr = cpu_list[i]; - if (nr == 0xffff) - continue; - - target = (nr << 14) | 0x70; - if (is_jbus) { - busy_mask |= (0x1UL << (nr * 2)); - } else { - target |= (nack_busy_id << 24); - busy_mask |= (0x1UL << - (nack_busy_id * 2)); - } - __asm__ __volatile__( - "stxa %%g0, [%0] %1\n\t" - "membar #Sync\n\t" - : /* no outputs */ - : "r" (target), "i" (ASI_INTR_W)); - nack_busy_id++; - if (nack_busy_id == 32) { - need_more = 1; - break; - } - } - } - - /* Now, poll for completion. */ - { - u64 dispatch_stat, nack_mask; - long stuck; - - stuck = 100000 * nack_busy_id; - nack_mask = busy_mask << 1; - do { - __asm__ __volatile__("ldxa [%%g0] %1, %0" - : "=r" (dispatch_stat) - : "i" (ASI_INTR_DISPATCH_STAT)); - if (!(dispatch_stat & (busy_mask | nack_mask))) { - __asm__ __volatile__("wrpr %0, 0x0, %%pstate" - : : "r" (pstate)); - if (unlikely(need_more)) { - int i, this_cnt = 0; - for (i = 0; i < cnt; i++) { - if (cpu_list[i] == 0xffff) - continue; - cpu_list[i] = 0xffff; - this_cnt++; - if (this_cnt == 32) - break; - } - goto retry; - } - return; - } - if (!--stuck) - break; - } while (dispatch_stat & busy_mask); - - __asm__ __volatile__("wrpr %0, 0x0, %%pstate" - : : "r" (pstate)); - - if (dispatch_stat & busy_mask) { - /* Busy bits will not clear, continue instead - * of freezing up on this cpu. - */ - printk("CPU[%d]: mondo stuckage result[%016lx]\n", - smp_processor_id(), dispatch_stat); - } else { - int i, this_busy_nack = 0; - - /* Delay some random time with interrupts enabled - * to prevent deadlock. - */ - udelay(2 * nack_busy_id); - - /* Clear out the mask bits for cpus which did not - * NACK us. - */ - for (i = 0; i < cnt; i++) { - u64 check_mask, nr; - - nr = cpu_list[i]; - if (nr == 0xffff) - continue; - - if (is_jbus) - check_mask = (0x2UL << (2*nr)); - else - check_mask = (0x2UL << - this_busy_nack); - if ((dispatch_stat & check_mask) == 0) - cpu_list[i] = 0xffff; - this_busy_nack += 2; - if (this_busy_nack == 64) - break; - } - - goto retry; - } - } -} - -/* Multi-cpu list version. */ -static void hypervisor_xcall_deliver(struct trap_per_cpu *tb, int cnt) -{ - int retries, this_cpu, prev_sent, i, saw_cpu_error; - unsigned long status; - u16 *cpu_list; - - this_cpu = smp_processor_id(); - - cpu_list = __va(tb->cpu_list_pa); - - saw_cpu_error = 0; - retries = 0; - prev_sent = 0; - do { - int forward_progress, n_sent; - - status = sun4v_cpu_mondo_send(cnt, - tb->cpu_list_pa, - tb->cpu_mondo_block_pa); - - /* HV_EOK means all cpus received the xcall, we're done. */ - if (likely(status == HV_EOK)) - break; - - /* First, see if we made any forward progress. - * - * The hypervisor indicates successful sends by setting - * cpu list entries to the value 0xffff. - */ - n_sent = 0; - for (i = 0; i < cnt; i++) { - if (likely(cpu_list[i] == 0xffff)) - n_sent++; - } - - forward_progress = 0; - if (n_sent > prev_sent) - forward_progress = 1; - - prev_sent = n_sent; - - /* If we get a HV_ECPUERROR, then one or more of the cpus - * in the list are in error state. Use the cpu_state() - * hypervisor call to find out which cpus are in error state. - */ - if (unlikely(status == HV_ECPUERROR)) { - for (i = 0; i < cnt; i++) { - long err; - u16 cpu; - - cpu = cpu_list[i]; - if (cpu == 0xffff) - continue; - - err = sun4v_cpu_state(cpu); - if (err == HV_CPU_STATE_ERROR) { - saw_cpu_error = (cpu + 1); - cpu_list[i] = 0xffff; - } - } - } else if (unlikely(status != HV_EWOULDBLOCK)) - goto fatal_mondo_error; - - /* Don't bother rewriting the CPU list, just leave the - * 0xffff and non-0xffff entries in there and the - * hypervisor will do the right thing. - * - * Only advance timeout state if we didn't make any - * forward progress. - */ - if (unlikely(!forward_progress)) { - if (unlikely(++retries > 10000)) - goto fatal_mondo_timeout; - - /* Delay a little bit to let other cpus catch up - * on their cpu mondo queue work. - */ - udelay(2 * cnt); - } - } while (1); - - if (unlikely(saw_cpu_error)) - goto fatal_mondo_cpu_error; - - return; - -fatal_mondo_cpu_error: - printk(KERN_CRIT "CPU[%d]: SUN4V mondo cpu error, some target cpus " - "(including %d) were in error state\n", - this_cpu, saw_cpu_error - 1); - return; - -fatal_mondo_timeout: - printk(KERN_CRIT "CPU[%d]: SUN4V mondo timeout, no forward " - " progress after %d retries.\n", - this_cpu, retries); - goto dump_cpu_list_and_out; - -fatal_mondo_error: - printk(KERN_CRIT "CPU[%d]: Unexpected SUN4V mondo error %lu\n", - this_cpu, status); - printk(KERN_CRIT "CPU[%d]: Args were cnt(%d) cpulist_pa(%lx) " - "mondo_block_pa(%lx)\n", - this_cpu, cnt, tb->cpu_list_pa, tb->cpu_mondo_block_pa); - -dump_cpu_list_and_out: - printk(KERN_CRIT "CPU[%d]: CPU list [ ", this_cpu); - for (i = 0; i < cnt; i++) - printk("%u ", cpu_list[i]); - printk("]\n"); -} - -static void (*xcall_deliver_impl)(struct trap_per_cpu *, int); - -static void xcall_deliver(u64 data0, u64 data1, u64 data2, const cpumask_t *mask) -{ - struct trap_per_cpu *tb; - int this_cpu, i, cnt; - unsigned long flags; - u16 *cpu_list; - u64 *mondo; - - /* We have to do this whole thing with interrupts fully disabled. - * Otherwise if we send an xcall from interrupt context it will - * corrupt both our mondo block and cpu list state. - * - * One consequence of this is that we cannot use timeout mechanisms - * that depend upon interrupts being delivered locally. So, for - * example, we cannot sample jiffies and expect it to advance. - * - * Fortunately, udelay() uses %stick/%tick so we can use that. - */ - local_irq_save(flags); - - this_cpu = smp_processor_id(); - tb = &trap_block[this_cpu]; - - mondo = __va(tb->cpu_mondo_block_pa); - mondo[0] = data0; - mondo[1] = data1; - mondo[2] = data2; - wmb(); - - cpu_list = __va(tb->cpu_list_pa); - - /* Setup the initial cpu list. */ - cnt = 0; - for_each_cpu_mask_nr(i, *mask) { - if (i == this_cpu || !cpu_online(i)) - continue; - cpu_list[cnt++] = i; - } - - if (cnt) - xcall_deliver_impl(tb, cnt); - - local_irq_restore(flags); -} - -/* Send cross call to all processors mentioned in MASK_P - * except self. Really, there are only two cases currently, - * "&cpu_online_map" and "&mm->cpu_vm_mask". - */ -static void smp_cross_call_masked(unsigned long *func, u32 ctx, u64 data1, u64 data2, const cpumask_t *mask) -{ - u64 data0 = (((u64)ctx)<<32 | (((u64)func) & 0xffffffff)); - - xcall_deliver(data0, data1, data2, mask); -} - -/* Send cross call to all processors except self. */ -static void smp_cross_call(unsigned long *func, u32 ctx, u64 data1, u64 data2) -{ - smp_cross_call_masked(func, ctx, data1, data2, &cpu_online_map); -} - -extern unsigned long xcall_sync_tick; - -static void smp_start_sync_tick_client(int cpu) -{ - xcall_deliver((u64) &xcall_sync_tick, 0, 0, - &cpumask_of_cpu(cpu)); -} - -extern unsigned long xcall_call_function; - -void arch_send_call_function_ipi(cpumask_t mask) -{ - xcall_deliver((u64) &xcall_call_function, 0, 0, &mask); -} - -extern unsigned long xcall_call_function_single; - -void arch_send_call_function_single_ipi(int cpu) -{ - xcall_deliver((u64) &xcall_call_function_single, 0, 0, - &cpumask_of_cpu(cpu)); -} - -void smp_call_function_client(int irq, struct pt_regs *regs) -{ - clear_softint(1 << irq); - generic_smp_call_function_interrupt(); -} - -void smp_call_function_single_client(int irq, struct pt_regs *regs) -{ - clear_softint(1 << irq); - generic_smp_call_function_single_interrupt(); -} - -static void tsb_sync(void *info) -{ - struct trap_per_cpu *tp = &trap_block[raw_smp_processor_id()]; - struct mm_struct *mm = info; - - /* It is not valid to test "currrent->active_mm == mm" here. - * - * The value of "current" is not changed atomically with - * switch_mm(). But that's OK, we just need to check the - * current cpu's trap block PGD physical address. - */ - if (tp->pgd_paddr == __pa(mm->pgd)) - tsb_context_switch(mm); -} - -void smp_tsb_sync(struct mm_struct *mm) -{ - smp_call_function_mask(mm->cpu_vm_mask, tsb_sync, mm, 1); -} - -extern unsigned long xcall_flush_tlb_mm; -extern unsigned long xcall_flush_tlb_pending; -extern unsigned long xcall_flush_tlb_kernel_range; -extern unsigned long xcall_fetch_glob_regs; -extern unsigned long xcall_receive_signal; -extern unsigned long xcall_new_mmu_context_version; -#ifdef CONFIG_KGDB -extern unsigned long xcall_kgdb_capture; -#endif - -#ifdef DCACHE_ALIASING_POSSIBLE -extern unsigned long xcall_flush_dcache_page_cheetah; -#endif -extern unsigned long xcall_flush_dcache_page_spitfire; - -#ifdef CONFIG_DEBUG_DCFLUSH -extern atomic_t dcpage_flushes; -extern atomic_t dcpage_flushes_xcall; -#endif - -static inline void __local_flush_dcache_page(struct page *page) -{ -#ifdef DCACHE_ALIASING_POSSIBLE - __flush_dcache_page(page_address(page), - ((tlb_type == spitfire) && - page_mapping(page) != NULL)); -#else - if (page_mapping(page) != NULL && - tlb_type == spitfire) - __flush_icache_page(__pa(page_address(page))); -#endif -} - -void smp_flush_dcache_page_impl(struct page *page, int cpu) -{ - int this_cpu; - - if (tlb_type == hypervisor) - return; - -#ifdef CONFIG_DEBUG_DCFLUSH - atomic_inc(&dcpage_flushes); -#endif - - this_cpu = get_cpu(); - - if (cpu == this_cpu) { - __local_flush_dcache_page(page); - } else if (cpu_online(cpu)) { - void *pg_addr = page_address(page); - u64 data0 = 0; - - if (tlb_type == spitfire) { - data0 = ((u64)&xcall_flush_dcache_page_spitfire); - if (page_mapping(page) != NULL) - data0 |= ((u64)1 << 32); - } else if (tlb_type == cheetah || tlb_type == cheetah_plus) { -#ifdef DCACHE_ALIASING_POSSIBLE - data0 = ((u64)&xcall_flush_dcache_page_cheetah); -#endif - } - if (data0) { - xcall_deliver(data0, __pa(pg_addr), - (u64) pg_addr, &cpumask_of_cpu(cpu)); -#ifdef CONFIG_DEBUG_DCFLUSH - atomic_inc(&dcpage_flushes_xcall); -#endif - } - } - - put_cpu(); -} - -void flush_dcache_page_all(struct mm_struct *mm, struct page *page) -{ - void *pg_addr; - int this_cpu; - u64 data0; - - if (tlb_type == hypervisor) - return; - - this_cpu = get_cpu(); - -#ifdef CONFIG_DEBUG_DCFLUSH - atomic_inc(&dcpage_flushes); -#endif - data0 = 0; - pg_addr = page_address(page); - if (tlb_type == spitfire) { - data0 = ((u64)&xcall_flush_dcache_page_spitfire); - if (page_mapping(page) != NULL) - data0 |= ((u64)1 << 32); - } else if (tlb_type == cheetah || tlb_type == cheetah_plus) { -#ifdef DCACHE_ALIASING_POSSIBLE - data0 = ((u64)&xcall_flush_dcache_page_cheetah); -#endif - } - if (data0) { - xcall_deliver(data0, __pa(pg_addr), - (u64) pg_addr, &cpu_online_map); -#ifdef CONFIG_DEBUG_DCFLUSH - atomic_inc(&dcpage_flushes_xcall); -#endif - } - __local_flush_dcache_page(page); - - put_cpu(); -} - -void smp_new_mmu_context_version_client(int irq, struct pt_regs *regs) -{ - struct mm_struct *mm; - unsigned long flags; - - clear_softint(1 << irq); - - /* See if we need to allocate a new TLB context because - * the version of the one we are using is now out of date. - */ - mm = current->active_mm; - if (unlikely(!mm || (mm == &init_mm))) - return; - - spin_lock_irqsave(&mm->context.lock, flags); - - if (unlikely(!CTX_VALID(mm->context))) - get_new_mmu_context(mm); - - spin_unlock_irqrestore(&mm->context.lock, flags); - - load_secondary_context(mm); - __flush_tlb_mm(CTX_HWBITS(mm->context), - SECONDARY_CONTEXT); -} - -void smp_new_mmu_context_version(void) -{ - smp_cross_call(&xcall_new_mmu_context_version, 0, 0, 0); -} - -#ifdef CONFIG_KGDB -void kgdb_roundup_cpus(unsigned long flags) -{ - smp_cross_call(&xcall_kgdb_capture, 0, 0, 0); -} -#endif - -void smp_fetch_global_regs(void) -{ - smp_cross_call(&xcall_fetch_glob_regs, 0, 0, 0); -} - -/* We know that the window frames of the user have been flushed - * to the stack before we get here because all callers of us - * are flush_tlb_*() routines, and these run after flush_cache_*() - * which performs the flushw. - * - * The SMP TLB coherency scheme we use works as follows: - * - * 1) mm->cpu_vm_mask is a bit mask of which cpus an address - * space has (potentially) executed on, this is the heuristic - * we use to avoid doing cross calls. - * - * Also, for flushing from kswapd and also for clones, we - * use cpu_vm_mask as the list of cpus to make run the TLB. - * - * 2) TLB context numbers are shared globally across all processors - * in the system, this allows us to play several games to avoid - * cross calls. - * - * One invariant is that when a cpu switches to a process, and - * that processes tsk->active_mm->cpu_vm_mask does not have the - * current cpu's bit set, that tlb context is flushed locally. - * - * If the address space is non-shared (ie. mm->count == 1) we avoid - * cross calls when we want to flush the currently running process's - * tlb state. This is done by clearing all cpu bits except the current - * processor's in current->active_mm->cpu_vm_mask and performing the - * flush locally only. This will force any subsequent cpus which run - * this task to flush the context from the local tlb if the process - * migrates to another cpu (again). - * - * 3) For shared address spaces (threads) and swapping we bite the - * bullet for most cases and perform the cross call (but only to - * the cpus listed in cpu_vm_mask). - * - * The performance gain from "optimizing" away the cross call for threads is - * questionable (in theory the big win for threads is the massive sharing of - * address space state across processors). - */ - -/* This currently is only used by the hugetlb arch pre-fault - * hook on UltraSPARC-III+ and later when changing the pagesize - * bits of the context register for an address space. - */ -void smp_flush_tlb_mm(struct mm_struct *mm) -{ - u32 ctx = CTX_HWBITS(mm->context); - int cpu = get_cpu(); - - if (atomic_read(&mm->mm_users) == 1) { - mm->cpu_vm_mask = cpumask_of_cpu(cpu); - goto local_flush_and_out; - } - - smp_cross_call_masked(&xcall_flush_tlb_mm, - ctx, 0, 0, - &mm->cpu_vm_mask); - -local_flush_and_out: - __flush_tlb_mm(ctx, SECONDARY_CONTEXT); - - put_cpu(); -} - -void smp_flush_tlb_pending(struct mm_struct *mm, unsigned long nr, unsigned long *vaddrs) -{ - u32 ctx = CTX_HWBITS(mm->context); - int cpu = get_cpu(); - - if (mm == current->active_mm && atomic_read(&mm->mm_users) == 1) - mm->cpu_vm_mask = cpumask_of_cpu(cpu); - else - smp_cross_call_masked(&xcall_flush_tlb_pending, - ctx, nr, (unsigned long) vaddrs, - &mm->cpu_vm_mask); - - __flush_tlb_pending(ctx, nr, vaddrs); - - put_cpu(); -} - -void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end) -{ - start &= PAGE_MASK; - end = PAGE_ALIGN(end); - if (start != end) { - smp_cross_call(&xcall_flush_tlb_kernel_range, - 0, start, end); - - __flush_tlb_kernel_range(start, end); - } -} - -/* CPU capture. */ -/* #define CAPTURE_DEBUG */ -extern unsigned long xcall_capture; - -static atomic_t smp_capture_depth = ATOMIC_INIT(0); -static atomic_t smp_capture_registry = ATOMIC_INIT(0); -static unsigned long penguins_are_doing_time; - -void smp_capture(void) -{ - int result = atomic_add_ret(1, &smp_capture_depth); - - if (result == 1) { - int ncpus = num_online_cpus(); - -#ifdef CAPTURE_DEBUG - printk("CPU[%d]: Sending penguins to jail...", - smp_processor_id()); -#endif - penguins_are_doing_time = 1; - membar_storestore_loadstore(); - atomic_inc(&smp_capture_registry); - smp_cross_call(&xcall_capture, 0, 0, 0); - while (atomic_read(&smp_capture_registry) != ncpus) - rmb(); -#ifdef CAPTURE_DEBUG - printk("done\n"); -#endif - } -} - -void smp_release(void) -{ - if (atomic_dec_and_test(&smp_capture_depth)) { -#ifdef CAPTURE_DEBUG - printk("CPU[%d]: Giving pardon to " - "imprisoned penguins\n", - smp_processor_id()); -#endif - penguins_are_doing_time = 0; - membar_storeload_storestore(); - atomic_dec(&smp_capture_registry); - } -} - -/* Imprisoned penguins run with %pil == 15, but PSTATE_IE set, so they - * can service tlb flush xcalls... - */ -extern void prom_world(int); - -void smp_penguin_jailcell(int irq, struct pt_regs *regs) -{ - clear_softint(1 << irq); - - preempt_disable(); - - __asm__ __volatile__("flushw"); - prom_world(1); - atomic_inc(&smp_capture_registry); - membar_storeload_storestore(); - while (penguins_are_doing_time) - rmb(); - atomic_dec(&smp_capture_registry); - prom_world(0); - - preempt_enable(); -} - -/* /proc/profile writes can call this, don't __init it please. */ -int setup_profiling_timer(unsigned int multiplier) -{ - return -EINVAL; -} - -void __init smp_prepare_cpus(unsigned int max_cpus) -{ -} - -void __devinit smp_prepare_boot_cpu(void) -{ -} - -void __init smp_setup_processor_id(void) -{ - if (tlb_type == spitfire) - xcall_deliver_impl = spitfire_xcall_deliver; - else if (tlb_type == cheetah || tlb_type == cheetah_plus) - xcall_deliver_impl = cheetah_xcall_deliver; - else - xcall_deliver_impl = hypervisor_xcall_deliver; -} - -void __devinit smp_fill_in_sib_core_maps(void) -{ - unsigned int i; - - for_each_present_cpu(i) { - unsigned int j; - - cpus_clear(cpu_core_map[i]); - if (cpu_data(i).core_id == 0) { - cpu_set(i, cpu_core_map[i]); - continue; - } - - for_each_present_cpu(j) { - if (cpu_data(i).core_id == - cpu_data(j).core_id) - cpu_set(j, cpu_core_map[i]); - } - } - - for_each_present_cpu(i) { - unsigned int j; - - cpus_clear(per_cpu(cpu_sibling_map, i)); - if (cpu_data(i).proc_id == -1) { - cpu_set(i, per_cpu(cpu_sibling_map, i)); - continue; - } - - for_each_present_cpu(j) { - if (cpu_data(i).proc_id == - cpu_data(j).proc_id) - cpu_set(j, per_cpu(cpu_sibling_map, i)); - } - } -} - -int __cpuinit __cpu_up(unsigned int cpu) -{ - int ret = smp_boot_one_cpu(cpu); - - if (!ret) { - cpu_set(cpu, smp_commenced_mask); - while (!cpu_isset(cpu, cpu_online_map)) - mb(); - if (!cpu_isset(cpu, cpu_online_map)) { - ret = -ENODEV; - } else { - /* On SUN4V, writes to %tick and %stick are - * not allowed. - */ - if (tlb_type != hypervisor) - smp_synchronize_one_tick(cpu); - } - } - return ret; -} - -#ifdef CONFIG_HOTPLUG_CPU -void cpu_play_dead(void) -{ - int cpu = smp_processor_id(); - unsigned long pstate; - - idle_task_exit(); - - if (tlb_type == hypervisor) { - struct trap_per_cpu *tb = &trap_block[cpu]; - - sun4v_cpu_qconf(HV_CPU_QUEUE_CPU_MONDO, - tb->cpu_mondo_pa, 0); - sun4v_cpu_qconf(HV_CPU_QUEUE_DEVICE_MONDO, - tb->dev_mondo_pa, 0); - sun4v_cpu_qconf(HV_CPU_QUEUE_RES_ERROR, - tb->resum_mondo_pa, 0); - sun4v_cpu_qconf(HV_CPU_QUEUE_NONRES_ERROR, - tb->nonresum_mondo_pa, 0); - } - - cpu_clear(cpu, smp_commenced_mask); - membar_safe("#Sync"); - - local_irq_disable(); - - __asm__ __volatile__( - "rdpr %%pstate, %0\n\t" - "wrpr %0, %1, %%pstate" - : "=r" (pstate) - : "i" (PSTATE_IE)); - - while (1) - barrier(); -} - -int __cpu_disable(void) -{ - int cpu = smp_processor_id(); - cpuinfo_sparc *c; - int i; - - for_each_cpu_mask(i, cpu_core_map[cpu]) - cpu_clear(cpu, cpu_core_map[i]); - cpus_clear(cpu_core_map[cpu]); - - for_each_cpu_mask(i, per_cpu(cpu_sibling_map, cpu)) - cpu_clear(cpu, per_cpu(cpu_sibling_map, i)); - cpus_clear(per_cpu(cpu_sibling_map, cpu)); - - c = &cpu_data(cpu); - - c->core_id = 0; - c->proc_id = -1; - - smp_wmb(); - - /* Make sure no interrupts point to this cpu. */ - fixup_irqs(); - - local_irq_enable(); - mdelay(1); - local_irq_disable(); - - ipi_call_lock(); - cpu_clear(cpu, cpu_online_map); - ipi_call_unlock(); - - return 0; -} - -void __cpu_die(unsigned int cpu) -{ - int i; - - for (i = 0; i < 100; i++) { - smp_rmb(); - if (!cpu_isset(cpu, smp_commenced_mask)) - break; - msleep(100); - } - if (cpu_isset(cpu, smp_commenced_mask)) { - printk(KERN_ERR "CPU %u didn't die...\n", cpu); - } else { -#if defined(CONFIG_SUN_LDOMS) - unsigned long hv_err; - int limit = 100; - - do { - hv_err = sun4v_cpu_stop(cpu); - if (hv_err == HV_EOK) { - cpu_clear(cpu, cpu_present_map); - break; - } - } while (--limit > 0); - if (limit <= 0) { - printk(KERN_ERR "sun4v_cpu_stop() fails err=%lu\n", - hv_err); - } -#endif - } -} -#endif - -void __init smp_cpus_done(unsigned int max_cpus) -{ -} - -void smp_send_reschedule(int cpu) -{ - xcall_deliver((u64) &xcall_receive_signal, 0, 0, - &cpumask_of_cpu(cpu)); -} - -void smp_receive_signal_client(int irq, struct pt_regs *regs) -{ - clear_softint(1 << irq); -} - -/* This is a nop because we capture all other cpus - * anyways when making the PROM active. - */ -void smp_send_stop(void) -{ -} - -unsigned long __per_cpu_base __read_mostly; -unsigned long __per_cpu_shift __read_mostly; - -EXPORT_SYMBOL(__per_cpu_base); -EXPORT_SYMBOL(__per_cpu_shift); - -void __init real_setup_per_cpu_areas(void) -{ - unsigned long paddr, goal, size, i; - char *ptr; - - /* Copy section for each CPU (we discard the original) */ - goal = PERCPU_ENOUGH_ROOM; - - __per_cpu_shift = PAGE_SHIFT; - for (size = PAGE_SIZE; size < goal; size <<= 1UL) - __per_cpu_shift++; - - paddr = lmb_alloc(size * NR_CPUS, PAGE_SIZE); - if (!paddr) { - prom_printf("Cannot allocate per-cpu memory.\n"); - prom_halt(); - } - - ptr = __va(paddr); - __per_cpu_base = ptr - __per_cpu_start; - - for (i = 0; i < NR_CPUS; i++, ptr += size) - memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start); - - /* Setup %g5 for the boot cpu. */ - __local_per_cpu_offset = __per_cpu_offset(smp_processor_id()); -} diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c deleted file mode 100644 index 30bba8b0a3b0..000000000000 --- a/arch/sparc64/kernel/sparc64_ksyms.c +++ /dev/null @@ -1,283 +0,0 @@ -/* arch/sparc64/kernel/sparc64_ksyms.c: Sparc64 specific ksyms support. - * - * Copyright (C) 1996, 2007 David S. Miller (davem@davemloft.net) - * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz) - */ - -/* Tell string.h we don't want memcpy etc. as cpp defines */ -#define EXPORT_SYMTAB_STROPS -#define PROMLIB_INTERNAL - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/sched.h> -#include <linux/in6.h> -#include <linux/pci.h> -#include <linux/interrupt.h> -#include <linux/fs_struct.h> -#include <linux/fs.h> -#include <linux/mm.h> -#include <linux/socket.h> -#include <linux/syscalls.h> -#include <linux/percpu.h> -#include <linux/init.h> -#include <linux/rwsem.h> -#include <net/compat.h> - -#include <asm/oplib.h> -#include <asm/system.h> -#include <asm/auxio.h> -#include <asm/pgtable.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/idprom.h> -#include <asm/elf.h> -#include <asm/head.h> -#include <asm/smp.h> -#include <asm/ptrace.h> -#include <asm/uaccess.h> -#include <asm/checksum.h> -#include <asm/fpumacro.h> -#include <asm/pgalloc.h> -#include <asm/cacheflush.h> -#ifdef CONFIG_SBUS -#include <asm/dma.h> -#endif -#include <asm/ns87303.h> -#include <asm/timer.h> -#include <asm/cpudata.h> -#include <asm/ftrace.h> - -struct poll { - int fd; - short events; - short revents; -}; - -extern void die_if_kernel(char *str, struct pt_regs *regs); -extern pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); -extern void *__bzero(void *, size_t); -extern void *__memscan_zero(void *, size_t); -extern void *__memscan_generic(void *, int, size_t); -extern int __memcmp(const void *, const void *, __kernel_size_t); -extern __kernel_size_t strlen(const char *); -extern void sys_sigsuspend(void); -extern int compat_sys_ioctl(unsigned int fd, unsigned int cmd, u32 arg); -extern int (*handle_mathemu)(struct pt_regs *, struct fpustate *); -extern long sparc32_open(const char __user * filename, int flags, int mode); -extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from, - unsigned long pfn, unsigned long size, pgprot_t prot); - -extern int __ashrdi3(int, int); - -extern int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs); - -extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *); -extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *, - unsigned long *); -extern void xor_vis_4(unsigned long, unsigned long *, unsigned long *, - unsigned long *, unsigned long *); -extern void xor_vis_5(unsigned long, unsigned long *, unsigned long *, - unsigned long *, unsigned long *, unsigned long *); - -extern void xor_niagara_2(unsigned long, unsigned long *, unsigned long *); -extern void xor_niagara_3(unsigned long, unsigned long *, unsigned long *, - unsigned long *); -extern void xor_niagara_4(unsigned long, unsigned long *, unsigned long *, - unsigned long *, unsigned long *); -extern void xor_niagara_5(unsigned long, unsigned long *, unsigned long *, - unsigned long *, unsigned long *, unsigned long *); - -/* Per-CPU information table */ -EXPORT_PER_CPU_SYMBOL(__cpu_data); - -/* used by various drivers */ -#ifdef CONFIG_SMP -/* Out of line rw-locking implementation. */ -EXPORT_SYMBOL(__read_lock); -EXPORT_SYMBOL(__read_unlock); -EXPORT_SYMBOL(__write_lock); -EXPORT_SYMBOL(__write_unlock); -EXPORT_SYMBOL(__write_trylock); -#endif /* CONFIG_SMP */ - -#ifdef CONFIG_MCOUNT -EXPORT_SYMBOL(_mcount); -#endif - -EXPORT_SYMBOL(sparc64_get_clock_tick); - -/* RW semaphores */ -EXPORT_SYMBOL(__down_read); -EXPORT_SYMBOL(__down_read_trylock); -EXPORT_SYMBOL(__down_write); -EXPORT_SYMBOL(__down_write_trylock); -EXPORT_SYMBOL(__up_read); -EXPORT_SYMBOL(__up_write); -EXPORT_SYMBOL(__downgrade_write); - -/* Atomic counter implementation. */ -EXPORT_SYMBOL(atomic_add); -EXPORT_SYMBOL(atomic_add_ret); -EXPORT_SYMBOL(atomic_sub); -EXPORT_SYMBOL(atomic_sub_ret); -EXPORT_SYMBOL(atomic64_add); -EXPORT_SYMBOL(atomic64_add_ret); -EXPORT_SYMBOL(atomic64_sub); -EXPORT_SYMBOL(atomic64_sub_ret); - -/* Atomic bit operations. */ -EXPORT_SYMBOL(test_and_set_bit); -EXPORT_SYMBOL(test_and_clear_bit); -EXPORT_SYMBOL(test_and_change_bit); -EXPORT_SYMBOL(set_bit); -EXPORT_SYMBOL(clear_bit); -EXPORT_SYMBOL(change_bit); - -EXPORT_SYMBOL(__flushw_user); - -EXPORT_SYMBOL(tlb_type); -EXPORT_SYMBOL(sun4v_chip_type); -EXPORT_SYMBOL(get_fb_unmapped_area); -EXPORT_SYMBOL(flush_icache_range); - -EXPORT_SYMBOL(flush_dcache_page); -#ifdef DCACHE_ALIASING_POSSIBLE -EXPORT_SYMBOL(__flush_dcache_range); -#endif - -#ifdef CONFIG_SUN_AUXIO -EXPORT_SYMBOL(auxio_set_led); -EXPORT_SYMBOL(auxio_set_lte); -#endif -#ifdef CONFIG_SBUS -EXPORT_SYMBOL(sbus_set_sbus64); -#endif -EXPORT_SYMBOL(outsb); -EXPORT_SYMBOL(outsw); -EXPORT_SYMBOL(outsl); -EXPORT_SYMBOL(insb); -EXPORT_SYMBOL(insw); -EXPORT_SYMBOL(insl); -#ifdef CONFIG_PCI -EXPORT_SYMBOL(pci_alloc_consistent); -EXPORT_SYMBOL(pci_free_consistent); -EXPORT_SYMBOL(pci_map_single); -EXPORT_SYMBOL(pci_unmap_single); -EXPORT_SYMBOL(pci_map_sg); -EXPORT_SYMBOL(pci_unmap_sg); -EXPORT_SYMBOL(pci_dma_sync_single_for_cpu); -EXPORT_SYMBOL(pci_dma_sync_sg_for_cpu); -EXPORT_SYMBOL(pci_dma_supported); -#endif - -/* I/O device mmaping on Sparc64. */ -EXPORT_SYMBOL(io_remap_pfn_range); - -EXPORT_SYMBOL(dump_fpu); -EXPORT_SYMBOL(put_fs_struct); - -/* math-emu wants this */ -EXPORT_SYMBOL(die_if_kernel); - -/* Kernel thread creation. */ -EXPORT_SYMBOL(kernel_thread); - -/* prom symbols */ -EXPORT_SYMBOL(idprom); -EXPORT_SYMBOL(prom_root_node); -EXPORT_SYMBOL(prom_getchild); -EXPORT_SYMBOL(prom_getsibling); -EXPORT_SYMBOL(prom_searchsiblings); -EXPORT_SYMBOL(prom_firstprop); -EXPORT_SYMBOL(prom_nextprop); -EXPORT_SYMBOL(prom_getproplen); -EXPORT_SYMBOL(prom_getproperty); -EXPORT_SYMBOL(prom_node_has_property); -EXPORT_SYMBOL(prom_setprop); -EXPORT_SYMBOL(saved_command_line); -EXPORT_SYMBOL(prom_finddevice); -EXPORT_SYMBOL(prom_feval); -EXPORT_SYMBOL(prom_getbool); -EXPORT_SYMBOL(prom_getstring); -EXPORT_SYMBOL(prom_getint); -EXPORT_SYMBOL(prom_getintdefault); -EXPORT_SYMBOL(__prom_getchild); -EXPORT_SYMBOL(__prom_getsibling); - -/* sparc library symbols */ -EXPORT_SYMBOL(strlen); -EXPORT_SYMBOL(__strlen_user); -EXPORT_SYMBOL(__strnlen_user); - -/* Special internal versions of library functions. */ -EXPORT_SYMBOL(_clear_page); -EXPORT_SYMBOL(clear_user_page); -EXPORT_SYMBOL(copy_user_page); -EXPORT_SYMBOL(__bzero); -EXPORT_SYMBOL(__memscan_zero); -EXPORT_SYMBOL(__memscan_generic); -EXPORT_SYMBOL(__memcmp); -EXPORT_SYMBOL(__memset); - -EXPORT_SYMBOL(csum_partial); -EXPORT_SYMBOL(csum_partial_copy_nocheck); -EXPORT_SYMBOL(__csum_partial_copy_from_user); -EXPORT_SYMBOL(__csum_partial_copy_to_user); -EXPORT_SYMBOL(ip_fast_csum); - -/* Moving data to/from/in userspace. */ -EXPORT_SYMBOL(___copy_to_user); -EXPORT_SYMBOL(___copy_from_user); -EXPORT_SYMBOL(___copy_in_user); -EXPORT_SYMBOL(copy_to_user_fixup); -EXPORT_SYMBOL(copy_from_user_fixup); -EXPORT_SYMBOL(copy_in_user_fixup); -EXPORT_SYMBOL(__strncpy_from_user); -EXPORT_SYMBOL(__clear_user); - -/* Various address conversion macros use this. */ -EXPORT_SYMBOL(sparc64_valid_addr_bitmap); - -/* No version information on this, heavily used in inline asm, - * and will always be 'void __ret_efault(void)'. - */ -EXPORT_SYMBOL(__ret_efault); - -/* No version information on these, as gcc produces such symbols. */ -EXPORT_SYMBOL(memcmp); -EXPORT_SYMBOL(memcpy); -EXPORT_SYMBOL(memset); -EXPORT_SYMBOL(memmove); -EXPORT_SYMBOL(strncmp); - -void VISenter(void); -/* RAID code needs this */ -EXPORT_SYMBOL(VISenter); - -/* for input/keybdev */ -EXPORT_SYMBOL(sun_do_break); -EXPORT_SYMBOL(stop_a_enabled); - -#ifdef CONFIG_DEBUG_BUGVERBOSE -EXPORT_SYMBOL(do_BUG); -#endif - -/* for ns8703 */ -EXPORT_SYMBOL(ns87303_lock); - -EXPORT_SYMBOL(tick_ops); - -EXPORT_SYMBOL(xor_vis_2); -EXPORT_SYMBOL(xor_vis_3); -EXPORT_SYMBOL(xor_vis_4); -EXPORT_SYMBOL(xor_vis_5); - -EXPORT_SYMBOL(xor_niagara_2); -EXPORT_SYMBOL(xor_niagara_3); -EXPORT_SYMBOL(xor_niagara_4); -EXPORT_SYMBOL(xor_niagara_5); - -EXPORT_SYMBOL_GPL(real_hard_smp_processor_id); diff --git a/arch/sparc64/kernel/spiterrs.S b/arch/sparc64/kernel/spiterrs.S deleted file mode 100644 index ef902c6f8e3c..000000000000 --- a/arch/sparc64/kernel/spiterrs.S +++ /dev/null @@ -1,245 +0,0 @@ - /* We need to carefully read the error status, ACK the errors, - * prevent recursive traps, and pass the information on to C - * code for logging. - * - * We pass the AFAR in as-is, and we encode the status - * information as described in asm-sparc64/sfafsr.h - */ - .type __spitfire_access_error,#function -__spitfire_access_error: - /* Disable ESTATE error reporting so that we do not take - * recursive traps and RED state the processor. - */ - stxa %g0, [%g0] ASI_ESTATE_ERROR_EN - membar #Sync - - mov UDBE_UE, %g1 - ldxa [%g0] ASI_AFSR, %g4 ! Get AFSR - - /* __spitfire_cee_trap branches here with AFSR in %g4 and - * UDBE_CE in %g1. It only clears ESTATE_ERR_CE in the ESTATE - * Error Enable register. - */ -__spitfire_cee_trap_continue: - ldxa [%g0] ASI_AFAR, %g5 ! Get AFAR - - rdpr %tt, %g3 - and %g3, 0x1ff, %g3 ! Paranoia - sllx %g3, SFSTAT_TRAP_TYPE_SHIFT, %g3 - or %g4, %g3, %g4 - rdpr %tl, %g3 - cmp %g3, 1 - mov 1, %g3 - bleu %xcc, 1f - sllx %g3, SFSTAT_TL_GT_ONE_SHIFT, %g3 - - or %g4, %g3, %g4 - - /* Read in the UDB error register state, clearing the sticky - * error bits as-needed. We only clear them if the UE bit is - * set. Likewise, __spitfire_cee_trap below will only do so - * if the CE bit is set. - * - * NOTE: UltraSparc-I/II have high and low UDB error - * registers, corresponding to the two UDB units - * present on those chips. UltraSparc-IIi only - * has a single UDB, called "SDB" in the manual. - * For IIi the upper UDB register always reads - * as zero so for our purposes things will just - * work with the checks below. - */ -1: ldxa [%g0] ASI_UDBH_ERROR_R, %g3 - and %g3, 0x3ff, %g7 ! Paranoia - sllx %g7, SFSTAT_UDBH_SHIFT, %g7 - or %g4, %g7, %g4 - andcc %g3, %g1, %g3 ! UDBE_UE or UDBE_CE - be,pn %xcc, 1f - nop - stxa %g3, [%g0] ASI_UDB_ERROR_W - membar #Sync - -1: mov 0x18, %g3 - ldxa [%g3] ASI_UDBL_ERROR_R, %g3 - and %g3, 0x3ff, %g7 ! Paranoia - sllx %g7, SFSTAT_UDBL_SHIFT, %g7 - or %g4, %g7, %g4 - andcc %g3, %g1, %g3 ! UDBE_UE or UDBE_CE - be,pn %xcc, 1f - nop - mov 0x18, %g7 - stxa %g3, [%g7] ASI_UDB_ERROR_W - membar #Sync - -1: /* Ok, now that we've latched the error state, clear the - * sticky bits in the AFSR. - */ - stxa %g4, [%g0] ASI_AFSR - membar #Sync - - rdpr %tl, %g2 - cmp %g2, 1 - rdpr %pil, %g2 - bleu,pt %xcc, 1f - wrpr %g0, 15, %pil - - ba,pt %xcc, etraptl1 - rd %pc, %g7 - - ba,pt %xcc, 2f - nop - -1: ba,pt %xcc, etrap_irq - rd %pc, %g7 - -2: -#ifdef CONFIG_TRACE_IRQFLAGS - call trace_hardirqs_off - nop -#endif - mov %l4, %o1 - mov %l5, %o2 - call spitfire_access_error - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - .size __spitfire_access_error,.-__spitfire_access_error - - /* This is the trap handler entry point for ECC correctable - * errors. They are corrected, but we listen for the trap so - * that the event can be logged. - * - * Disrupting errors are either: - * 1) single-bit ECC errors during UDB reads to system - * memory - * 2) data parity errors during write-back events - * - * As far as I can make out from the manual, the CEE trap is - * only for correctable errors during memory read accesses by - * the front-end of the processor. - * - * The code below is only for trap level 1 CEE events, as it - * is the only situation where we can safely record and log. - * For trap level >1 we just clear the CE bit in the AFSR and - * return. - * - * This is just like __spiftire_access_error above, but it - * specifically handles correctable errors. If an - * uncorrectable error is indicated in the AFSR we will branch - * directly above to __spitfire_access_error to handle it - * instead. Uncorrectable therefore takes priority over - * correctable, and the error logging C code will notice this - * case by inspecting the trap type. - */ - .type __spitfire_cee_trap,#function -__spitfire_cee_trap: - ldxa [%g0] ASI_AFSR, %g4 ! Get AFSR - mov 1, %g3 - sllx %g3, SFAFSR_UE_SHIFT, %g3 - andcc %g4, %g3, %g0 ! Check for UE - bne,pn %xcc, __spitfire_access_error - nop - - /* Ok, in this case we only have a correctable error. - * Indicate we only wish to capture that state in register - * %g1, and we only disable CE error reporting unlike UE - * handling which disables all errors. - */ - ldxa [%g0] ASI_ESTATE_ERROR_EN, %g3 - andn %g3, ESTATE_ERR_CE, %g3 - stxa %g3, [%g0] ASI_ESTATE_ERROR_EN - membar #Sync - - /* Preserve AFSR in %g4, indicate UDB state to capture in %g1 */ - ba,pt %xcc, __spitfire_cee_trap_continue - mov UDBE_CE, %g1 - .size __spitfire_cee_trap,.-__spitfire_cee_trap - - .type __spitfire_data_access_exception_tl1,#function -__spitfire_data_access_exception_tl1: - rdpr %pstate, %g4 - wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate - mov TLB_SFSR, %g3 - mov DMMU_SFAR, %g5 - ldxa [%g3] ASI_DMMU, %g4 ! Get SFSR - ldxa [%g5] ASI_DMMU, %g5 ! Get SFAR - stxa %g0, [%g3] ASI_DMMU ! Clear SFSR.FaultValid bit - membar #Sync - rdpr %tt, %g3 - cmp %g3, 0x80 ! first win spill/fill trap - blu,pn %xcc, 1f - cmp %g3, 0xff ! last win spill/fill trap - bgu,pn %xcc, 1f - nop - ba,pt %xcc, winfix_dax - rdpr %tpc, %g3 -1: sethi %hi(109f), %g7 - ba,pt %xcc, etraptl1 -109: or %g7, %lo(109b), %g7 - mov %l4, %o1 - mov %l5, %o2 - call spitfire_data_access_exception_tl1 - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - .size __spitfire_data_access_exception_tl1,.-__spitfire_data_access_exception_tl1 - - .type __spitfire_data_access_exception,#function -__spitfire_data_access_exception: - rdpr %pstate, %g4 - wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate - mov TLB_SFSR, %g3 - mov DMMU_SFAR, %g5 - ldxa [%g3] ASI_DMMU, %g4 ! Get SFSR - ldxa [%g5] ASI_DMMU, %g5 ! Get SFAR - stxa %g0, [%g3] ASI_DMMU ! Clear SFSR.FaultValid bit - membar #Sync - sethi %hi(109f), %g7 - ba,pt %xcc, etrap -109: or %g7, %lo(109b), %g7 - mov %l4, %o1 - mov %l5, %o2 - call spitfire_data_access_exception - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - .size __spitfire_data_access_exception,.-__spitfire_data_access_exception - - .type __spitfire_insn_access_exception_tl1,#function -__spitfire_insn_access_exception_tl1: - rdpr %pstate, %g4 - wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate - mov TLB_SFSR, %g3 - ldxa [%g3] ASI_IMMU, %g4 ! Get SFSR - rdpr %tpc, %g5 ! IMMU has no SFAR, use TPC - stxa %g0, [%g3] ASI_IMMU ! Clear FaultValid bit - membar #Sync - sethi %hi(109f), %g7 - ba,pt %xcc, etraptl1 -109: or %g7, %lo(109b), %g7 - mov %l4, %o1 - mov %l5, %o2 - call spitfire_insn_access_exception_tl1 - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - .size __spitfire_insn_access_exception_tl1,.-__spitfire_insn_access_exception_tl1 - - .type __spitfire_insn_access_exception,#function -__spitfire_insn_access_exception: - rdpr %pstate, %g4 - wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate - mov TLB_SFSR, %g3 - ldxa [%g3] ASI_IMMU, %g4 ! Get SFSR - rdpr %tpc, %g5 ! IMMU has no SFAR, use TPC - stxa %g0, [%g3] ASI_IMMU ! Clear FaultValid bit - membar #Sync - sethi %hi(109f), %g7 - ba,pt %xcc, etrap -109: or %g7, %lo(109b), %g7 - mov %l4, %o1 - mov %l5, %o2 - call spitfire_insn_access_exception - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - .size __spitfire_insn_access_exception,.-__spitfire_insn_access_exception diff --git a/arch/sparc64/kernel/sstate.c b/arch/sparc64/kernel/sstate.c deleted file mode 100644 index 8cdbe5946b43..000000000000 --- a/arch/sparc64/kernel/sstate.c +++ /dev/null @@ -1,127 +0,0 @@ -/* sstate.c: System soft state support. - * - * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net> - */ - -#include <linux/kernel.h> -#include <linux/notifier.h> -#include <linux/reboot.h> -#include <linux/init.h> - -#include <asm/hypervisor.h> -#include <asm/spitfire.h> -#include <asm/oplib.h> -#include <asm/head.h> -#include <asm/io.h> - -static int hv_supports_soft_state; - -static unsigned long kimage_addr_to_ra(const char *p) -{ - unsigned long val = (unsigned long) p; - - return kern_base + (val - KERNBASE); -} - -static void do_set_sstate(unsigned long state, const char *msg) -{ - unsigned long err; - - if (!hv_supports_soft_state) - return; - - err = sun4v_mach_set_soft_state(state, kimage_addr_to_ra(msg)); - if (err) { - printk(KERN_WARNING "SSTATE: Failed to set soft-state to " - "state[%lx] msg[%s], err=%lu\n", - state, msg, err); - } -} - -static const char booting_msg[32] __attribute__((aligned(32))) = - "Linux booting"; -static const char running_msg[32] __attribute__((aligned(32))) = - "Linux running"; -static const char halting_msg[32] __attribute__((aligned(32))) = - "Linux halting"; -static const char poweroff_msg[32] __attribute__((aligned(32))) = - "Linux powering off"; -static const char rebooting_msg[32] __attribute__((aligned(32))) = - "Linux rebooting"; -static const char panicing_msg[32] __attribute__((aligned(32))) = - "Linux panicing"; - -static int sstate_reboot_call(struct notifier_block *np, unsigned long type, void *_unused) -{ - const char *msg; - - switch (type) { - case SYS_DOWN: - default: - msg = rebooting_msg; - break; - - case SYS_HALT: - msg = halting_msg; - break; - - case SYS_POWER_OFF: - msg = poweroff_msg; - break; - } - - do_set_sstate(HV_SOFT_STATE_TRANSITION, msg); - - return NOTIFY_OK; -} - -static struct notifier_block sstate_reboot_notifier = { - .notifier_call = sstate_reboot_call, -}; - -static int sstate_panic_event(struct notifier_block *n, unsigned long event, void *ptr) -{ - do_set_sstate(HV_SOFT_STATE_TRANSITION, panicing_msg); - - return NOTIFY_DONE; -} - -static struct notifier_block sstate_panic_block = { - .notifier_call = sstate_panic_event, - .priority = INT_MAX, -}; - -static int __init sstate_init(void) -{ - unsigned long major, minor; - - if (tlb_type != hypervisor) - return 0; - - major = 1; - minor = 0; - if (sun4v_hvapi_register(HV_GRP_SOFT_STATE, major, &minor)) - return 0; - - hv_supports_soft_state = 1; - - prom_sun4v_guest_soft_state(); - - do_set_sstate(HV_SOFT_STATE_TRANSITION, booting_msg); - - atomic_notifier_chain_register(&panic_notifier_list, - &sstate_panic_block); - register_reboot_notifier(&sstate_reboot_notifier); - - return 0; -} - -core_initcall(sstate_init); - -static int __init sstate_running(void) -{ - do_set_sstate(HV_SOFT_STATE_NORMAL, running_msg); - return 0; -} - -late_initcall(sstate_running); diff --git a/arch/sparc64/kernel/stacktrace.c b/arch/sparc64/kernel/stacktrace.c deleted file mode 100644 index 4e21d4a57d3b..000000000000 --- a/arch/sparc64/kernel/stacktrace.c +++ /dev/null @@ -1,50 +0,0 @@ -#include <linux/sched.h> -#include <linux/stacktrace.h> -#include <linux/thread_info.h> -#include <linux/module.h> -#include <asm/ptrace.h> -#include <asm/stacktrace.h> - -#include "kstack.h" - -void save_stack_trace(struct stack_trace *trace) -{ - struct thread_info *tp = task_thread_info(current); - unsigned long ksp, fp; - - stack_trace_flush(); - - __asm__ __volatile__( - "mov %%fp, %0" - : "=r" (ksp) - ); - - fp = ksp + STACK_BIAS; - do { - struct sparc_stackf *sf; - struct pt_regs *regs; - unsigned long pc; - - if (!kstack_valid(tp, fp)) - break; - - sf = (struct sparc_stackf *) fp; - regs = (struct pt_regs *) (sf + 1); - - if (kstack_is_trap_frame(tp, regs)) { - if (!(regs->tstate & TSTATE_PRIV)) - break; - pc = regs->tpc; - fp = regs->u_regs[UREG_I6] + STACK_BIAS; - } else { - pc = sf->callers_pc; - fp = (unsigned long)sf->fp + STACK_BIAS; - } - - if (trace->skip > 0) - trace->skip--; - else - trace->entries[trace->nr_entries++] = pc; - } while (trace->nr_entries < trace->max_entries); -} -EXPORT_SYMBOL_GPL(save_stack_trace); diff --git a/arch/sparc64/kernel/starfire.c b/arch/sparc64/kernel/starfire.c deleted file mode 100644 index 060d0f3a6151..000000000000 --- a/arch/sparc64/kernel/starfire.c +++ /dev/null @@ -1,116 +0,0 @@ -/* - * starfire.c: Starfire/E10000 support. - * - * Copyright (C) 1998 David S. Miller (davem@redhat.com) - * Copyright (C) 2000 Anton Blanchard (anton@samba.org) - */ - -#include <linux/kernel.h> -#include <linux/slab.h> - -#include <asm/page.h> -#include <asm/oplib.h> -#include <asm/smp.h> -#include <asm/upa.h> -#include <asm/starfire.h> - -/* - * A few places around the kernel check this to see if - * they need to call us to do things in a Starfire specific - * way. - */ -int this_is_starfire = 0; - -void check_if_starfire(void) -{ - int ssnode = prom_finddevice("/ssp-serial"); - if (ssnode != 0 && ssnode != -1) - this_is_starfire = 1; -} - -int starfire_hard_smp_processor_id(void) -{ - return upa_readl(0x1fff40000d0UL); -} - -/* - * Each Starfire board has 32 registers which perform translation - * and delivery of traditional interrupt packets into the extended - * Starfire hardware format. Essentially UPAID's now have 2 more - * bits than in all previous Sun5 systems. - */ -struct starfire_irqinfo { - unsigned long imap_slots[32]; - unsigned long tregs[32]; - struct starfire_irqinfo *next; - int upaid, hwmid; -}; - -static struct starfire_irqinfo *sflist = NULL; - -/* Beam me up Scott(McNeil)y... */ -void starfire_hookup(int upaid) -{ - struct starfire_irqinfo *p; - unsigned long treg_base, hwmid, i; - - p = kmalloc(sizeof(*p), GFP_KERNEL); - if (!p) { - prom_printf("starfire_hookup: No memory, this is insane.\n"); - prom_halt(); - } - treg_base = 0x100fc000000UL; - hwmid = ((upaid & 0x3c) << 1) | - ((upaid & 0x40) >> 4) | - (upaid & 0x3); - p->hwmid = hwmid; - treg_base += (hwmid << 33UL); - treg_base += 0x200UL; - for (i = 0; i < 32; i++) { - p->imap_slots[i] = 0UL; - p->tregs[i] = treg_base + (i * 0x10UL); - /* Lets play it safe and not overwrite existing mappings */ - if (upa_readl(p->tregs[i]) != 0) - p->imap_slots[i] = 0xdeadbeaf; - } - p->upaid = upaid; - p->next = sflist; - sflist = p; -} - -unsigned int starfire_translate(unsigned long imap, - unsigned int upaid) -{ - struct starfire_irqinfo *p; - unsigned int bus_hwmid; - unsigned int i; - - bus_hwmid = (((unsigned long)imap) >> 33) & 0x7f; - for (p = sflist; p != NULL; p = p->next) - if (p->hwmid == bus_hwmid) - break; - if (p == NULL) { - prom_printf("XFIRE: Cannot find irqinfo for imap %016lx\n", - ((unsigned long)imap)); - prom_halt(); - } - for (i = 0; i < 32; i++) { - if (p->imap_slots[i] == imap || - p->imap_slots[i] == 0UL) - break; - } - if (i == 32) { - printk("starfire_translate: Are you kidding me?\n"); - panic("Lucy in the sky...."); - } - p->imap_slots[i] = imap; - - /* map to real upaid */ - upaid = (((upaid & 0x3c) << 1) | - ((upaid & 0x40) >> 4) | - (upaid & 0x3)); - - upa_writel(upaid, p->tregs[i]); - - return i; -} diff --git a/arch/sparc64/kernel/sun4v_ivec.S b/arch/sparc64/kernel/sun4v_ivec.S deleted file mode 100644 index e2f8e1b4882a..000000000000 --- a/arch/sparc64/kernel/sun4v_ivec.S +++ /dev/null @@ -1,341 +0,0 @@ -/* sun4v_ivec.S: Sun4v interrupt vector handling. - * - * Copyright (C) 2006 <davem@davemloft.net> - */ - -#include <asm/cpudata.h> -#include <asm/intr_queue.h> -#include <asm/pil.h> - - .text - .align 32 - -sun4v_cpu_mondo: - /* Head offset in %g2, tail offset in %g4. - * If they are the same, no work. - */ - mov INTRQ_CPU_MONDO_HEAD, %g2 - ldxa [%g2] ASI_QUEUE, %g2 - mov INTRQ_CPU_MONDO_TAIL, %g4 - ldxa [%g4] ASI_QUEUE, %g4 - cmp %g2, %g4 - be,pn %xcc, sun4v_cpu_mondo_queue_empty - nop - - /* Get &trap_block[smp_processor_id()] into %g4. */ - ldxa [%g0] ASI_SCRATCHPAD, %g4 - sub %g4, TRAP_PER_CPU_FAULT_INFO, %g4 - - /* Get CPU mondo queue base phys address into %g7. */ - ldx [%g4 + TRAP_PER_CPU_CPU_MONDO_PA], %g7 - - /* Now get the cross-call arguments and handler PC, same - * layout as sun4u: - * - * 1st 64-bit word: low half is 32-bit PC, put into %g3 and jmpl to it - * high half is context arg to MMU flushes, into %g5 - * 2nd 64-bit word: 64-bit arg, load into %g1 - * 3rd 64-bit word: 64-bit arg, load into %g7 - */ - ldxa [%g7 + %g2] ASI_PHYS_USE_EC, %g3 - add %g2, 0x8, %g2 - srlx %g3, 32, %g5 - ldxa [%g7 + %g2] ASI_PHYS_USE_EC, %g1 - add %g2, 0x8, %g2 - srl %g3, 0, %g3 - ldxa [%g7 + %g2] ASI_PHYS_USE_EC, %g7 - add %g2, 0x40 - 0x8 - 0x8, %g2 - - /* Update queue head pointer. */ - lduw [%g4 + TRAP_PER_CPU_CPU_MONDO_QMASK], %g4 - and %g2, %g4, %g2 - - mov INTRQ_CPU_MONDO_HEAD, %g4 - stxa %g2, [%g4] ASI_QUEUE - membar #Sync - - jmpl %g3, %g0 - nop - -sun4v_cpu_mondo_queue_empty: - retry - -sun4v_dev_mondo: - /* Head offset in %g2, tail offset in %g4. */ - mov INTRQ_DEVICE_MONDO_HEAD, %g2 - ldxa [%g2] ASI_QUEUE, %g2 - mov INTRQ_DEVICE_MONDO_TAIL, %g4 - ldxa [%g4] ASI_QUEUE, %g4 - cmp %g2, %g4 - be,pn %xcc, sun4v_dev_mondo_queue_empty - nop - - /* Get &trap_block[smp_processor_id()] into %g4. */ - ldxa [%g0] ASI_SCRATCHPAD, %g4 - sub %g4, TRAP_PER_CPU_FAULT_INFO, %g4 - - /* Get DEV mondo queue base phys address into %g5. */ - ldx [%g4 + TRAP_PER_CPU_DEV_MONDO_PA], %g5 - - /* Load IVEC into %g3. */ - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - add %g2, 0x40, %g2 - - /* XXX There can be a full 64-byte block of data here. - * XXX This is how we can get at MSI vector data. - * XXX Current we do not capture this, but when we do we'll - * XXX need to add a 64-byte storage area in the struct ino_bucket - * XXX or the struct irq_desc. - */ - - /* Update queue head pointer, this frees up some registers. */ - lduw [%g4 + TRAP_PER_CPU_DEV_MONDO_QMASK], %g4 - and %g2, %g4, %g2 - - mov INTRQ_DEVICE_MONDO_HEAD, %g4 - stxa %g2, [%g4] ASI_QUEUE - membar #Sync - - TRAP_LOAD_IRQ_WORK_PA(%g1, %g4) - - /* For VIRQs, cookie is encoded as ~bucket_phys_addr */ - brlz,pt %g3, 1f - xnor %g3, %g0, %g4 - - /* Get __pa(&ivector_table[IVEC]) into %g4. */ - sethi %hi(ivector_table_pa), %g4 - ldx [%g4 + %lo(ivector_table_pa)], %g4 - sllx %g3, 4, %g3 - add %g4, %g3, %g4 - -1: ldx [%g1], %g2 - stxa %g2, [%g4] ASI_PHYS_USE_EC - stx %g4, [%g1] - - /* Signal the interrupt by setting (1 << pil) in %softint. */ - wr %g0, 1 << PIL_DEVICE_IRQ, %set_softint - -sun4v_dev_mondo_queue_empty: - retry - -sun4v_res_mondo: - /* Head offset in %g2, tail offset in %g4. */ - mov INTRQ_RESUM_MONDO_HEAD, %g2 - ldxa [%g2] ASI_QUEUE, %g2 - mov INTRQ_RESUM_MONDO_TAIL, %g4 - ldxa [%g4] ASI_QUEUE, %g4 - cmp %g2, %g4 - be,pn %xcc, sun4v_res_mondo_queue_empty - nop - - /* Get &trap_block[smp_processor_id()] into %g3. */ - ldxa [%g0] ASI_SCRATCHPAD, %g3 - sub %g3, TRAP_PER_CPU_FAULT_INFO, %g3 - - /* Get RES mondo queue base phys address into %g5. */ - ldx [%g3 + TRAP_PER_CPU_RESUM_MONDO_PA], %g5 - - /* Get RES kernel buffer base phys address into %g7. */ - ldx [%g3 + TRAP_PER_CPU_RESUM_KBUF_PA], %g7 - - /* If the first word is non-zero, queue is full. */ - ldxa [%g7 + %g2] ASI_PHYS_USE_EC, %g1 - brnz,pn %g1, sun4v_res_mondo_queue_full - nop - - lduw [%g3 + TRAP_PER_CPU_RESUM_QMASK], %g4 - - /* Remember this entry's offset in %g1. */ - mov %g2, %g1 - - /* Copy 64-byte queue entry into kernel buffer. */ - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - - /* Update queue head pointer. */ - and %g2, %g4, %g2 - - mov INTRQ_RESUM_MONDO_HEAD, %g4 - stxa %g2, [%g4] ASI_QUEUE - membar #Sync - - /* Disable interrupts and save register state so we can call - * C code. The etrap handling will leave %g4 in %l4 for us - * when it's done. - */ - rdpr %pil, %g2 - wrpr %g0, 15, %pil - mov %g1, %g4 - ba,pt %xcc, etrap_irq - rd %pc, %g7 -#ifdef CONFIG_TRACE_IRQFLAGS - call trace_hardirqs_off - nop -#endif - /* Log the event. */ - add %sp, PTREGS_OFF, %o0 - call sun4v_resum_error - mov %l4, %o1 - - /* Return from trap. */ - ba,pt %xcc, rtrap_irq - nop - -sun4v_res_mondo_queue_empty: - retry - -sun4v_res_mondo_queue_full: - /* The queue is full, consolidate our damage by setting - * the head equal to the tail. We'll just trap again otherwise. - * Call C code to log the event. - */ - mov INTRQ_RESUM_MONDO_HEAD, %g2 - stxa %g4, [%g2] ASI_QUEUE - membar #Sync - - rdpr %pil, %g2 - wrpr %g0, 15, %pil - ba,pt %xcc, etrap_irq - rd %pc, %g7 -#ifdef CONFIG_TRACE_IRQFLAGS - call trace_hardirqs_off - nop -#endif - call sun4v_resum_overflow - add %sp, PTREGS_OFF, %o0 - - ba,pt %xcc, rtrap_irq - nop - -sun4v_nonres_mondo: - /* Head offset in %g2, tail offset in %g4. */ - mov INTRQ_NONRESUM_MONDO_HEAD, %g2 - ldxa [%g2] ASI_QUEUE, %g2 - mov INTRQ_NONRESUM_MONDO_TAIL, %g4 - ldxa [%g4] ASI_QUEUE, %g4 - cmp %g2, %g4 - be,pn %xcc, sun4v_nonres_mondo_queue_empty - nop - - /* Get &trap_block[smp_processor_id()] into %g3. */ - ldxa [%g0] ASI_SCRATCHPAD, %g3 - sub %g3, TRAP_PER_CPU_FAULT_INFO, %g3 - - /* Get RES mondo queue base phys address into %g5. */ - ldx [%g3 + TRAP_PER_CPU_NONRESUM_MONDO_PA], %g5 - - /* Get RES kernel buffer base phys address into %g7. */ - ldx [%g3 + TRAP_PER_CPU_NONRESUM_KBUF_PA], %g7 - - /* If the first word is non-zero, queue is full. */ - ldxa [%g7 + %g2] ASI_PHYS_USE_EC, %g1 - brnz,pn %g1, sun4v_nonres_mondo_queue_full - nop - - lduw [%g3 + TRAP_PER_CPU_NONRESUM_QMASK], %g4 - - /* Remember this entry's offset in %g1. */ - mov %g2, %g1 - - /* Copy 64-byte queue entry into kernel buffer. */ - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - ldxa [%g5 + %g2] ASI_PHYS_USE_EC, %g3 - stxa %g3, [%g7 + %g2] ASI_PHYS_USE_EC - add %g2, 0x08, %g2 - - /* Update queue head pointer. */ - and %g2, %g4, %g2 - - mov INTRQ_NONRESUM_MONDO_HEAD, %g4 - stxa %g2, [%g4] ASI_QUEUE - membar #Sync - - /* Disable interrupts and save register state so we can call - * C code. The etrap handling will leave %g4 in %l4 for us - * when it's done. - */ - rdpr %pil, %g2 - wrpr %g0, 15, %pil - mov %g1, %g4 - ba,pt %xcc, etrap_irq - rd %pc, %g7 -#ifdef CONFIG_TRACE_IRQFLAGS - call trace_hardirqs_off - nop -#endif - /* Log the event. */ - add %sp, PTREGS_OFF, %o0 - call sun4v_nonresum_error - mov %l4, %o1 - - /* Return from trap. */ - ba,pt %xcc, rtrap_irq - nop - -sun4v_nonres_mondo_queue_empty: - retry - -sun4v_nonres_mondo_queue_full: - /* The queue is full, consolidate our damage by setting - * the head equal to the tail. We'll just trap again otherwise. - * Call C code to log the event. - */ - mov INTRQ_NONRESUM_MONDO_HEAD, %g2 - stxa %g4, [%g2] ASI_QUEUE - membar #Sync - - rdpr %pil, %g2 - wrpr %g0, 15, %pil - ba,pt %xcc, etrap_irq - rd %pc, %g7 -#ifdef CONFIG_TRACE_IRQFLAGS - call trace_hardirqs_off - nop -#endif - call sun4v_nonresum_overflow - add %sp, PTREGS_OFF, %o0 - - ba,pt %xcc, rtrap_irq - nop diff --git a/arch/sparc64/kernel/sun4v_tlb_miss.S b/arch/sparc64/kernel/sun4v_tlb_miss.S deleted file mode 100644 index e1fbf8c75787..000000000000 --- a/arch/sparc64/kernel/sun4v_tlb_miss.S +++ /dev/null @@ -1,428 +0,0 @@ -/* sun4v_tlb_miss.S: Sun4v TLB miss handlers. - * - * Copyright (C) 2006 <davem@davemloft.net> - */ - - .text - .align 32 - - /* Load ITLB fault information into VADDR and CTX, using BASE. */ -#define LOAD_ITLB_INFO(BASE, VADDR, CTX) \ - ldx [BASE + HV_FAULT_I_ADDR_OFFSET], VADDR; \ - ldx [BASE + HV_FAULT_I_CTX_OFFSET], CTX; - - /* Load DTLB fault information into VADDR and CTX, using BASE. */ -#define LOAD_DTLB_INFO(BASE, VADDR, CTX) \ - ldx [BASE + HV_FAULT_D_ADDR_OFFSET], VADDR; \ - ldx [BASE + HV_FAULT_D_CTX_OFFSET], CTX; - - /* DEST = (VADDR >> 22) - * - * Branch to ZERO_CTX_LABEL if context is zero. - */ -#define COMPUTE_TAG_TARGET(DEST, VADDR, CTX, ZERO_CTX_LABEL) \ - srlx VADDR, 22, DEST; \ - brz,pn CTX, ZERO_CTX_LABEL; \ - nop; - - /* Create TSB pointer. This is something like: - * - * index_mask = (512 << (tsb_reg & 0x7UL)) - 1UL; - * tsb_base = tsb_reg & ~0x7UL; - * tsb_index = ((vaddr >> HASH_SHIFT) & tsb_mask); - * tsb_ptr = tsb_base + (tsb_index * 16); - */ -#define COMPUTE_TSB_PTR(TSB_PTR, VADDR, HASH_SHIFT, TMP1, TMP2) \ - and TSB_PTR, 0x7, TMP1; \ - mov 512, TMP2; \ - andn TSB_PTR, 0x7, TSB_PTR; \ - sllx TMP2, TMP1, TMP2; \ - srlx VADDR, HASH_SHIFT, TMP1; \ - sub TMP2, 1, TMP2; \ - and TMP1, TMP2, TMP1; \ - sllx TMP1, 4, TMP1; \ - add TSB_PTR, TMP1, TSB_PTR; - -sun4v_itlb_miss: - /* Load MMU Miss base into %g2. */ - ldxa [%g0] ASI_SCRATCHPAD, %g2 - - /* Load UTSB reg into %g1. */ - mov SCRATCHPAD_UTSBREG1, %g1 - ldxa [%g1] ASI_SCRATCHPAD, %g1 - - LOAD_ITLB_INFO(%g2, %g4, %g5) - COMPUTE_TAG_TARGET(%g6, %g4, %g5, kvmap_itlb_4v) - COMPUTE_TSB_PTR(%g1, %g4, PAGE_SHIFT, %g3, %g7) - - /* Load TSB tag/pte into %g2/%g3 and compare the tag. */ - ldda [%g1] ASI_QUAD_LDD_PHYS_4V, %g2 - cmp %g2, %g6 - bne,a,pn %xcc, tsb_miss_page_table_walk - mov FAULT_CODE_ITLB, %g3 - andcc %g3, _PAGE_EXEC_4V, %g0 - be,a,pn %xcc, tsb_do_fault - mov FAULT_CODE_ITLB, %g3 - - /* We have a valid entry, make hypervisor call to load - * I-TLB and return from trap. - * - * %g3: PTE - * %g4: vaddr - */ -sun4v_itlb_load: - ldxa [%g0] ASI_SCRATCHPAD, %g6 - mov %o0, %g1 ! save %o0 - mov %o1, %g2 ! save %o1 - mov %o2, %g5 ! save %o2 - mov %o3, %g7 ! save %o3 - mov %g4, %o0 ! vaddr - ldx [%g6 + HV_FAULT_I_CTX_OFFSET], %o1 ! ctx - mov %g3, %o2 ! PTE - mov HV_MMU_IMMU, %o3 ! flags - ta HV_MMU_MAP_ADDR_TRAP - brnz,pn %o0, sun4v_itlb_error - mov %g2, %o1 ! restore %o1 - mov %g1, %o0 ! restore %o0 - mov %g5, %o2 ! restore %o2 - mov %g7, %o3 ! restore %o3 - - retry - -sun4v_dtlb_miss: - /* Load MMU Miss base into %g2. */ - ldxa [%g0] ASI_SCRATCHPAD, %g2 - - /* Load UTSB reg into %g1. */ - mov SCRATCHPAD_UTSBREG1, %g1 - ldxa [%g1] ASI_SCRATCHPAD, %g1 - - LOAD_DTLB_INFO(%g2, %g4, %g5) - COMPUTE_TAG_TARGET(%g6, %g4, %g5, kvmap_dtlb_4v) - COMPUTE_TSB_PTR(%g1, %g4, PAGE_SHIFT, %g3, %g7) - - /* Load TSB tag/pte into %g2/%g3 and compare the tag. */ - ldda [%g1] ASI_QUAD_LDD_PHYS_4V, %g2 - cmp %g2, %g6 - bne,a,pn %xcc, tsb_miss_page_table_walk - mov FAULT_CODE_DTLB, %g3 - - /* We have a valid entry, make hypervisor call to load - * D-TLB and return from trap. - * - * %g3: PTE - * %g4: vaddr - */ -sun4v_dtlb_load: - ldxa [%g0] ASI_SCRATCHPAD, %g6 - mov %o0, %g1 ! save %o0 - mov %o1, %g2 ! save %o1 - mov %o2, %g5 ! save %o2 - mov %o3, %g7 ! save %o3 - mov %g4, %o0 ! vaddr - ldx [%g6 + HV_FAULT_D_CTX_OFFSET], %o1 ! ctx - mov %g3, %o2 ! PTE - mov HV_MMU_DMMU, %o3 ! flags - ta HV_MMU_MAP_ADDR_TRAP - brnz,pn %o0, sun4v_dtlb_error - mov %g2, %o1 ! restore %o1 - mov %g1, %o0 ! restore %o0 - mov %g5, %o2 ! restore %o2 - mov %g7, %o3 ! restore %o3 - - retry - -sun4v_dtlb_prot: - SET_GL(1) - - /* Load MMU Miss base into %g5. */ - ldxa [%g0] ASI_SCRATCHPAD, %g5 - - ldx [%g5 + HV_FAULT_D_ADDR_OFFSET], %g5 - rdpr %tl, %g1 - cmp %g1, 1 - bgu,pn %xcc, winfix_trampoline - mov FAULT_CODE_DTLB | FAULT_CODE_WRITE, %g4 - ba,pt %xcc, sparc64_realfault_common - nop - - /* Called from trap table: - * %g4: vaddr - * %g5: context - * %g6: TAG TARGET - */ -sun4v_itsb_miss: - mov SCRATCHPAD_UTSBREG1, %g1 - ldxa [%g1] ASI_SCRATCHPAD, %g1 - brz,pn %g5, kvmap_itlb_4v - mov FAULT_CODE_ITLB, %g3 - ba,a,pt %xcc, sun4v_tsb_miss_common - - /* Called from trap table: - * %g4: vaddr - * %g5: context - * %g6: TAG TARGET - */ -sun4v_dtsb_miss: - mov SCRATCHPAD_UTSBREG1, %g1 - ldxa [%g1] ASI_SCRATCHPAD, %g1 - brz,pn %g5, kvmap_dtlb_4v - mov FAULT_CODE_DTLB, %g3 - - /* fallthrough */ - -sun4v_tsb_miss_common: - COMPUTE_TSB_PTR(%g1, %g4, PAGE_SHIFT, %g5, %g7) - - sub %g2, TRAP_PER_CPU_FAULT_INFO, %g2 - -#ifdef CONFIG_HUGETLB_PAGE - mov SCRATCHPAD_UTSBREG2, %g5 - ldxa [%g5] ASI_SCRATCHPAD, %g5 - cmp %g5, -1 - be,pt %xcc, 80f - nop - COMPUTE_TSB_PTR(%g5, %g4, HPAGE_SHIFT, %g2, %g7) - - /* That clobbered %g2, reload it. */ - ldxa [%g0] ASI_SCRATCHPAD, %g2 - sub %g2, TRAP_PER_CPU_FAULT_INFO, %g2 - -80: stx %g5, [%g2 + TRAP_PER_CPU_TSB_HUGE_TEMP] -#endif - - ba,pt %xcc, tsb_miss_page_table_walk_sun4v_fastpath - ldx [%g2 + TRAP_PER_CPU_PGD_PADDR], %g7 - -sun4v_itlb_error: - sethi %hi(sun4v_err_itlb_vaddr), %g1 - stx %g4, [%g1 + %lo(sun4v_err_itlb_vaddr)] - sethi %hi(sun4v_err_itlb_ctx), %g1 - ldxa [%g0] ASI_SCRATCHPAD, %g6 - ldx [%g6 + HV_FAULT_I_CTX_OFFSET], %o1 - stx %o1, [%g1 + %lo(sun4v_err_itlb_ctx)] - sethi %hi(sun4v_err_itlb_pte), %g1 - stx %g3, [%g1 + %lo(sun4v_err_itlb_pte)] - sethi %hi(sun4v_err_itlb_error), %g1 - stx %o0, [%g1 + %lo(sun4v_err_itlb_error)] - - rdpr %tl, %g4 - cmp %g4, 1 - ble,pt %icc, 1f - sethi %hi(2f), %g7 - ba,pt %xcc, etraptl1 - or %g7, %lo(2f), %g7 - -1: ba,pt %xcc, etrap -2: or %g7, %lo(2b), %g7 - mov %l4, %o1 - call sun4v_itlb_error_report - add %sp, PTREGS_OFF, %o0 - - /* NOTREACHED */ - -sun4v_dtlb_error: - sethi %hi(sun4v_err_dtlb_vaddr), %g1 - stx %g4, [%g1 + %lo(sun4v_err_dtlb_vaddr)] - sethi %hi(sun4v_err_dtlb_ctx), %g1 - ldxa [%g0] ASI_SCRATCHPAD, %g6 - ldx [%g6 + HV_FAULT_D_CTX_OFFSET], %o1 - stx %o1, [%g1 + %lo(sun4v_err_dtlb_ctx)] - sethi %hi(sun4v_err_dtlb_pte), %g1 - stx %g3, [%g1 + %lo(sun4v_err_dtlb_pte)] - sethi %hi(sun4v_err_dtlb_error), %g1 - stx %o0, [%g1 + %lo(sun4v_err_dtlb_error)] - - rdpr %tl, %g4 - cmp %g4, 1 - ble,pt %icc, 1f - sethi %hi(2f), %g7 - ba,pt %xcc, etraptl1 - or %g7, %lo(2f), %g7 - -1: ba,pt %xcc, etrap -2: or %g7, %lo(2b), %g7 - mov %l4, %o1 - call sun4v_dtlb_error_report - add %sp, PTREGS_OFF, %o0 - - /* NOTREACHED */ - - /* Instruction Access Exception, tl0. */ -sun4v_iacc: - ldxa [%g0] ASI_SCRATCHPAD, %g2 - ldx [%g2 + HV_FAULT_I_TYPE_OFFSET], %g3 - ldx [%g2 + HV_FAULT_I_ADDR_OFFSET], %g4 - ldx [%g2 + HV_FAULT_I_CTX_OFFSET], %g5 - sllx %g3, 16, %g3 - or %g5, %g3, %g5 - ba,pt %xcc, etrap - rd %pc, %g7 - mov %l4, %o1 - mov %l5, %o2 - call sun4v_insn_access_exception - add %sp, PTREGS_OFF, %o0 - ba,a,pt %xcc, rtrap - - /* Instruction Access Exception, tl1. */ -sun4v_iacc_tl1: - ldxa [%g0] ASI_SCRATCHPAD, %g2 - ldx [%g2 + HV_FAULT_I_TYPE_OFFSET], %g3 - ldx [%g2 + HV_FAULT_I_ADDR_OFFSET], %g4 - ldx [%g2 + HV_FAULT_I_CTX_OFFSET], %g5 - sllx %g3, 16, %g3 - or %g5, %g3, %g5 - ba,pt %xcc, etraptl1 - rd %pc, %g7 - mov %l4, %o1 - mov %l5, %o2 - call sun4v_insn_access_exception_tl1 - add %sp, PTREGS_OFF, %o0 - ba,a,pt %xcc, rtrap - - /* Data Access Exception, tl0. */ -sun4v_dacc: - ldxa [%g0] ASI_SCRATCHPAD, %g2 - ldx [%g2 + HV_FAULT_D_TYPE_OFFSET], %g3 - ldx [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4 - ldx [%g2 + HV_FAULT_D_CTX_OFFSET], %g5 - sllx %g3, 16, %g3 - or %g5, %g3, %g5 - ba,pt %xcc, etrap - rd %pc, %g7 - mov %l4, %o1 - mov %l5, %o2 - call sun4v_data_access_exception - add %sp, PTREGS_OFF, %o0 - ba,a,pt %xcc, rtrap - - /* Data Access Exception, tl1. */ -sun4v_dacc_tl1: - ldxa [%g0] ASI_SCRATCHPAD, %g2 - ldx [%g2 + HV_FAULT_D_TYPE_OFFSET], %g3 - ldx [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4 - ldx [%g2 + HV_FAULT_D_CTX_OFFSET], %g5 - sllx %g3, 16, %g3 - or %g5, %g3, %g5 - ba,pt %xcc, etraptl1 - rd %pc, %g7 - mov %l4, %o1 - mov %l5, %o2 - call sun4v_data_access_exception_tl1 - add %sp, PTREGS_OFF, %o0 - ba,a,pt %xcc, rtrap - - /* Memory Address Unaligned. */ -sun4v_mna: - /* Window fixup? */ - rdpr %tl, %g2 - cmp %g2, 1 - ble,pt %icc, 1f - nop - - SET_GL(1) - ldxa [%g0] ASI_SCRATCHPAD, %g2 - ldx [%g2 + HV_FAULT_D_ADDR_OFFSET], %g5 - mov HV_FAULT_TYPE_UNALIGNED, %g3 - ldx [%g2 + HV_FAULT_D_CTX_OFFSET], %g4 - sllx %g3, 16, %g3 - or %g4, %g3, %g4 - ba,pt %xcc, winfix_mna - rdpr %tpc, %g3 - /* not reached */ - -1: ldxa [%g0] ASI_SCRATCHPAD, %g2 - mov HV_FAULT_TYPE_UNALIGNED, %g3 - ldx [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4 - ldx [%g2 + HV_FAULT_D_CTX_OFFSET], %g5 - sllx %g3, 16, %g3 - or %g5, %g3, %g5 - - ba,pt %xcc, etrap - rd %pc, %g7 - mov %l4, %o1 - mov %l5, %o2 - call sun4v_do_mna - add %sp, PTREGS_OFF, %o0 - ba,a,pt %xcc, rtrap - - /* Privileged Action. */ -sun4v_privact: - ba,pt %xcc, etrap - rd %pc, %g7 - call do_privact - add %sp, PTREGS_OFF, %o0 - ba,a,pt %xcc, rtrap - - /* Unaligned ldd float, tl0. */ -sun4v_lddfmna: - ldxa [%g0] ASI_SCRATCHPAD, %g2 - ldx [%g2 + HV_FAULT_D_TYPE_OFFSET], %g3 - ldx [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4 - ldx [%g2 + HV_FAULT_D_CTX_OFFSET], %g5 - sllx %g3, 16, %g3 - or %g5, %g3, %g5 - ba,pt %xcc, etrap - rd %pc, %g7 - mov %l4, %o1 - mov %l5, %o2 - call handle_lddfmna - add %sp, PTREGS_OFF, %o0 - ba,a,pt %xcc, rtrap - - /* Unaligned std float, tl0. */ -sun4v_stdfmna: - ldxa [%g0] ASI_SCRATCHPAD, %g2 - ldx [%g2 + HV_FAULT_D_TYPE_OFFSET], %g3 - ldx [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4 - ldx [%g2 + HV_FAULT_D_CTX_OFFSET], %g5 - sllx %g3, 16, %g3 - or %g5, %g3, %g5 - ba,pt %xcc, etrap - rd %pc, %g7 - mov %l4, %o1 - mov %l5, %o2 - call handle_stdfmna - add %sp, PTREGS_OFF, %o0 - ba,a,pt %xcc, rtrap - -#define BRANCH_ALWAYS 0x10680000 -#define NOP 0x01000000 -#define SUN4V_DO_PATCH(OLD, NEW) \ - sethi %hi(NEW), %g1; \ - or %g1, %lo(NEW), %g1; \ - sethi %hi(OLD), %g2; \ - or %g2, %lo(OLD), %g2; \ - sub %g1, %g2, %g1; \ - sethi %hi(BRANCH_ALWAYS), %g3; \ - sll %g1, 11, %g1; \ - srl %g1, 11 + 2, %g1; \ - or %g3, %lo(BRANCH_ALWAYS), %g3; \ - or %g3, %g1, %g3; \ - stw %g3, [%g2]; \ - sethi %hi(NOP), %g3; \ - or %g3, %lo(NOP), %g3; \ - stw %g3, [%g2 + 0x4]; \ - flush %g2; - - .globl sun4v_patch_tlb_handlers - .type sun4v_patch_tlb_handlers,#function -sun4v_patch_tlb_handlers: - SUN4V_DO_PATCH(tl0_iamiss, sun4v_itlb_miss) - SUN4V_DO_PATCH(tl1_iamiss, sun4v_itlb_miss) - SUN4V_DO_PATCH(tl0_damiss, sun4v_dtlb_miss) - SUN4V_DO_PATCH(tl1_damiss, sun4v_dtlb_miss) - SUN4V_DO_PATCH(tl0_daprot, sun4v_dtlb_prot) - SUN4V_DO_PATCH(tl1_daprot, sun4v_dtlb_prot) - SUN4V_DO_PATCH(tl0_iax, sun4v_iacc) - SUN4V_DO_PATCH(tl1_iax, sun4v_iacc_tl1) - SUN4V_DO_PATCH(tl0_dax, sun4v_dacc) - SUN4V_DO_PATCH(tl1_dax, sun4v_dacc_tl1) - SUN4V_DO_PATCH(tl0_mna, sun4v_mna) - SUN4V_DO_PATCH(tl1_mna, sun4v_mna) - SUN4V_DO_PATCH(tl0_lddfmna, sun4v_lddfmna) - SUN4V_DO_PATCH(tl0_stdfmna, sun4v_stdfmna) - SUN4V_DO_PATCH(tl0_privact, sun4v_privact) - retl - nop - .size sun4v_patch_tlb_handlers,.-sun4v_patch_tlb_handlers diff --git a/arch/sparc64/kernel/sys32.S b/arch/sparc64/kernel/sys32.S deleted file mode 100644 index f061c4dda9ef..000000000000 --- a/arch/sparc64/kernel/sys32.S +++ /dev/null @@ -1,367 +0,0 @@ -/* - * sys32.S: I-cache tricks for 32-bit compatibility layer simple - * conversions. - * - * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) - */ - -#include <asm/errno.h> - -/* NOTE: call as jump breaks return stack, we have to avoid that */ - - .text - -#define SIGN1(STUB,SYSCALL,REG1) \ - .align 32; \ - .globl STUB; \ -STUB: sethi %hi(SYSCALL), %g1; \ - jmpl %g1 + %lo(SYSCALL), %g0; \ - sra REG1, 0, REG1 - -#define SIGN2(STUB,SYSCALL,REG1,REG2) \ - .align 32; \ - .globl STUB; \ -STUB: sethi %hi(SYSCALL), %g1; \ - sra REG1, 0, REG1; \ - jmpl %g1 + %lo(SYSCALL), %g0; \ - sra REG2, 0, REG2 - -#define SIGN3(STUB,SYSCALL,REG1,REG2,REG3) \ - .align 32; \ - .globl STUB; \ -STUB: sra REG1, 0, REG1; \ - sethi %hi(SYSCALL), %g1; \ - sra REG2, 0, REG2; \ - jmpl %g1 + %lo(SYSCALL), %g0; \ - sra REG3, 0, REG3 - -#define SIGN4(STUB,SYSCALL,REG1,REG2,REG3,REG4) \ - .align 32; \ - .globl STUB; \ -STUB: sra REG1, 0, REG1; \ - sethi %hi(SYSCALL), %g1; \ - sra REG2, 0, REG2; \ - sra REG3, 0, REG3; \ - jmpl %g1 + %lo(SYSCALL), %g0; \ - sra REG4, 0, REG4 - -SIGN1(sys32_exit, sparc_exit, %o0) -SIGN1(sys32_exit_group, sys_exit_group, %o0) -SIGN1(sys32_wait4, compat_sys_wait4, %o2) -SIGN1(sys32_creat, sys_creat, %o1) -SIGN1(sys32_mknod, sys_mknod, %o1) -SIGN1(sys32_perfctr, sys_perfctr, %o0) -SIGN1(sys32_umount, sys_umount, %o1) -SIGN1(sys32_signal, sys_signal, %o0) -SIGN1(sys32_access, sys_access, %o1) -SIGN1(sys32_msync, sys_msync, %o2) -SIGN2(sys32_reboot, sys_reboot, %o0, %o1) -SIGN1(sys32_setitimer, compat_sys_setitimer, %o0) -SIGN1(sys32_getitimer, compat_sys_getitimer, %o0) -SIGN1(sys32_sethostname, sys_sethostname, %o1) -SIGN1(sys32_swapon, sys_swapon, %o1) -SIGN1(sys32_sigaction, compat_sys_sigaction, %o0) -SIGN1(sys32_rt_sigaction, compat_sys_rt_sigaction, %o0) -SIGN1(sys32_sigprocmask, compat_sys_sigprocmask, %o0) -SIGN1(sys32_rt_sigprocmask, compat_sys_rt_sigprocmask, %o0) -SIGN2(sys32_rt_sigqueueinfo, compat_sys_rt_sigqueueinfo, %o0, %o1) -SIGN1(sys32_getrusage, compat_sys_getrusage, %o0) -SIGN1(sys32_setxattr, sys_setxattr, %o4) -SIGN1(sys32_lsetxattr, sys_lsetxattr, %o4) -SIGN1(sys32_fsetxattr, sys_fsetxattr, %o4) -SIGN1(sys32_fgetxattr, sys_fgetxattr, %o0) -SIGN1(sys32_flistxattr, sys_flistxattr, %o0) -SIGN1(sys32_fremovexattr, sys_fremovexattr, %o0) -SIGN2(sys32_tkill, sys_tkill, %o0, %o1) -SIGN1(sys32_epoll_create, sys_epoll_create, %o0) -SIGN3(sys32_epoll_ctl, sys_epoll_ctl, %o0, %o1, %o2) -SIGN3(sys32_epoll_wait, sys_epoll_wait, %o0, %o2, %o3) -SIGN1(sys32_readahead, compat_sys_readahead, %o0) -SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4) -SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5) -SIGN2(sys32_bdflush, sys_bdflush, %o0, %o1) -SIGN1(sys32_mlockall, sys_mlockall, %o0) -SIGN1(sys32_nfsservctl, compat_sys_nfsservctl, %o0) -SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1) -SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1) -SIGN1(sys32_io_submit, compat_sys_io_submit, %o1) -SIGN1(sys32_mq_open, compat_sys_mq_open, %o1) -SIGN1(sys32_select, compat_sys_select, %o0) -SIGN1(sys32_mkdir, sys_mkdir, %o1) -SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5) -SIGN1(sys32_sysfs, compat_sys_sysfs, %o0) -SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1) -SIGN2(sys32_sendfile64, compat_sys_sendfile64, %o0, %o1) -SIGN1(sys32_prctl, sys_prctl, %o0) -SIGN1(sys32_sched_rr_get_interval, compat_sys_sched_rr_get_interval, %o0) -SIGN2(sys32_waitpid, sys_waitpid, %o0, %o2) -SIGN1(sys32_getgroups, sys_getgroups, %o0) -SIGN1(sys32_getpgid, sys_getpgid, %o0) -SIGN2(sys32_getpriority, sys_getpriority, %o0, %o1) -SIGN1(sys32_getsid, sys_getsid, %o0) -SIGN2(sys32_kill, sys_kill, %o0, %o1) -SIGN1(sys32_nice, sys_nice, %o0) -SIGN1(sys32_lseek, sys_lseek, %o1) -SIGN2(sys32_open, sparc32_open, %o1, %o2) -SIGN1(sys32_readlink, sys_readlink, %o2) -SIGN1(sys32_sched_get_priority_max, sys_sched_get_priority_max, %o0) -SIGN1(sys32_sched_get_priority_min, sys_sched_get_priority_min, %o0) -SIGN1(sys32_sched_getparam, sys_sched_getparam, %o0) -SIGN1(sys32_sched_getscheduler, sys_sched_getscheduler, %o0) -SIGN1(sys32_sched_setparam, sys_sched_setparam, %o0) -SIGN2(sys32_sched_setscheduler, sys_sched_setscheduler, %o0, %o1) -SIGN1(sys32_getdomainname, sys_getdomainname, %o1) -SIGN1(sys32_setdomainname, sys_setdomainname, %o1) -SIGN1(sys32_setgroups, sys_setgroups, %o0) -SIGN2(sys32_setpgid, sys_setpgid, %o0, %o1) -SIGN3(sys32_setpriority, sys_setpriority, %o0, %o1, %o2) -SIGN1(sys32_ssetmask, sys_ssetmask, %o0) -SIGN2(sys32_syslog, sys_syslog, %o0, %o2) -SIGN1(sys32_umask, sys_umask, %o0) -SIGN3(sys32_tgkill, sys_tgkill, %o0, %o1, %o2) -SIGN1(sys32_sendto, sys_sendto, %o0) -SIGN1(sys32_recvfrom, sys_recvfrom, %o0) -SIGN3(sys32_socket, sys_socket, %o0, %o1, %o2) -SIGN2(sys32_connect, sys_connect, %o0, %o2) -SIGN2(sys32_bind, sys_bind, %o0, %o2) -SIGN2(sys32_listen, sys_listen, %o0, %o1) -SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0) -SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0) -SIGN2(sys32_shutdown, sys_shutdown, %o0, %o1) -SIGN3(sys32_socketpair, sys_socketpair, %o0, %o1, %o2) -SIGN1(sys32_getpeername, sys_getpeername, %o0) -SIGN1(sys32_getsockname, sys_getsockname, %o0) -SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1) -SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2) -SIGN2(sys32_splice, sys_splice, %o0, %o1) -SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) -SIGN2(sys32_tee, sys_tee, %o0, %o1) -SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) - - .globl sys32_mmap2 -sys32_mmap2: - sethi %hi(sys_mmap), %g1 - jmpl %g1 + %lo(sys_mmap), %g0 - sllx %o5, 12, %o5 - - .align 32 - .globl sys32_socketcall -sys32_socketcall: /* %o0=call, %o1=args */ - cmp %o0, 1 - bl,pn %xcc, do_einval - cmp %o0, 18 - bg,pn %xcc, do_einval - sub %o0, 1, %o0 - sllx %o0, 5, %o0 - sethi %hi(__socketcall_table_begin), %g2 - or %g2, %lo(__socketcall_table_begin), %g2 - jmpl %g2 + %o0, %g0 - nop -do_einval: - retl - mov -EINVAL, %o0 - - .align 32 -__socketcall_table_begin: - - /* Each entry is exactly 32 bytes. */ -do_sys_socket: /* sys_socket(int, int, int) */ -1: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_socket), %g1 -2: ldswa [%o1 + 0x8] %asi, %o2 - jmpl %g1 + %lo(sys_socket), %g0 -3: ldswa [%o1 + 0x4] %asi, %o1 - nop - nop - nop -do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ -4: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_bind), %g1 -5: ldswa [%o1 + 0x8] %asi, %o2 - jmpl %g1 + %lo(sys_bind), %g0 -6: lduwa [%o1 + 0x4] %asi, %o1 - nop - nop - nop -do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ -7: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_connect), %g1 -8: ldswa [%o1 + 0x8] %asi, %o2 - jmpl %g1 + %lo(sys_connect), %g0 -9: lduwa [%o1 + 0x4] %asi, %o1 - nop - nop - nop -do_sys_listen: /* sys_listen(int, int) */ -10: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_listen), %g1 - jmpl %g1 + %lo(sys_listen), %g0 -11: ldswa [%o1 + 0x4] %asi, %o1 - nop - nop - nop - nop -do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ -12: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_accept), %g1 -13: lduwa [%o1 + 0x8] %asi, %o2 - jmpl %g1 + %lo(sys_accept), %g0 -14: lduwa [%o1 + 0x4] %asi, %o1 - nop - nop - nop -do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ -15: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_getsockname), %g1 -16: lduwa [%o1 + 0x8] %asi, %o2 - jmpl %g1 + %lo(sys_getsockname), %g0 -17: lduwa [%o1 + 0x4] %asi, %o1 - nop - nop - nop -do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ -18: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_getpeername), %g1 -19: lduwa [%o1 + 0x8] %asi, %o2 - jmpl %g1 + %lo(sys_getpeername), %g0 -20: lduwa [%o1 + 0x4] %asi, %o1 - nop - nop - nop -do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ -21: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_socketpair), %g1 -22: ldswa [%o1 + 0x8] %asi, %o2 -23: lduwa [%o1 + 0xc] %asi, %o3 - jmpl %g1 + %lo(sys_socketpair), %g0 -24: ldswa [%o1 + 0x4] %asi, %o1 - nop - nop -do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ -25: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_send), %g1 -26: lduwa [%o1 + 0x8] %asi, %o2 -27: lduwa [%o1 + 0xc] %asi, %o3 - jmpl %g1 + %lo(sys_send), %g0 -28: lduwa [%o1 + 0x4] %asi, %o1 - nop - nop -do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ -29: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_recv), %g1 -30: lduwa [%o1 + 0x8] %asi, %o2 -31: lduwa [%o1 + 0xc] %asi, %o3 - jmpl %g1 + %lo(sys_recv), %g0 -32: lduwa [%o1 + 0x4] %asi, %o1 - nop - nop -do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ -33: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_sendto), %g1 -34: lduwa [%o1 + 0x8] %asi, %o2 -35: lduwa [%o1 + 0xc] %asi, %o3 -36: lduwa [%o1 + 0x10] %asi, %o4 -37: ldswa [%o1 + 0x14] %asi, %o5 - jmpl %g1 + %lo(sys_sendto), %g0 -38: lduwa [%o1 + 0x4] %asi, %o1 -do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ -39: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_recvfrom), %g1 -40: lduwa [%o1 + 0x8] %asi, %o2 -41: lduwa [%o1 + 0xc] %asi, %o3 -42: lduwa [%o1 + 0x10] %asi, %o4 -43: lduwa [%o1 + 0x14] %asi, %o5 - jmpl %g1 + %lo(sys_recvfrom), %g0 -44: lduwa [%o1 + 0x4] %asi, %o1 -do_sys_shutdown: /* sys_shutdown(int, int) */ -45: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_shutdown), %g1 - jmpl %g1 + %lo(sys_shutdown), %g0 -46: ldswa [%o1 + 0x4] %asi, %o1 - nop - nop - nop - nop -do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ -47: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(compat_sys_setsockopt), %g1 -48: ldswa [%o1 + 0x8] %asi, %o2 -49: lduwa [%o1 + 0xc] %asi, %o3 -50: ldswa [%o1 + 0x10] %asi, %o4 - jmpl %g1 + %lo(compat_sys_setsockopt), %g0 -51: ldswa [%o1 + 0x4] %asi, %o1 - nop -do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ -52: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(compat_sys_getsockopt), %g1 -53: ldswa [%o1 + 0x8] %asi, %o2 -54: lduwa [%o1 + 0xc] %asi, %o3 -55: lduwa [%o1 + 0x10] %asi, %o4 - jmpl %g1 + %lo(compat_sys_getsockopt), %g0 -56: ldswa [%o1 + 0x4] %asi, %o1 - nop -do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ -57: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(compat_sys_sendmsg), %g1 -58: lduwa [%o1 + 0x8] %asi, %o2 - jmpl %g1 + %lo(compat_sys_sendmsg), %g0 -59: lduwa [%o1 + 0x4] %asi, %o1 - nop - nop - nop -do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ -60: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(compat_sys_recvmsg), %g1 -61: lduwa [%o1 + 0x8] %asi, %o2 - jmpl %g1 + %lo(compat_sys_recvmsg), %g0 -62: lduwa [%o1 + 0x4] %asi, %o1 - nop - nop - nop -do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */ -63: ldswa [%o1 + 0x0] %asi, %o0 - sethi %hi(sys_accept4), %g1 -64: lduwa [%o1 + 0x8] %asi, %o2 -65: ldswa [%o1 + 0xc] %asi, %o3 - jmpl %g1 + %lo(sys_accept4), %g0 -66: lduwa [%o1 + 0x4] %asi, %o1 - nop - nop - - .section __ex_table,"a" - .align 4 - .word 1b, __retl_efault, 2b, __retl_efault - .word 3b, __retl_efault, 4b, __retl_efault - .word 5b, __retl_efault, 6b, __retl_efault - .word 7b, __retl_efault, 8b, __retl_efault - .word 9b, __retl_efault, 10b, __retl_efault - .word 11b, __retl_efault, 12b, __retl_efault - .word 13b, __retl_efault, 14b, __retl_efault - .word 15b, __retl_efault, 16b, __retl_efault - .word 17b, __retl_efault, 18b, __retl_efault - .word 19b, __retl_efault, 20b, __retl_efault - .word 21b, __retl_efault, 22b, __retl_efault - .word 23b, __retl_efault, 24b, __retl_efault - .word 25b, __retl_efault, 26b, __retl_efault - .word 27b, __retl_efault, 28b, __retl_efault - .word 29b, __retl_efault, 30b, __retl_efault - .word 31b, __retl_efault, 32b, __retl_efault - .word 33b, __retl_efault, 34b, __retl_efault - .word 35b, __retl_efault, 36b, __retl_efault - .word 37b, __retl_efault, 38b, __retl_efault - .word 39b, __retl_efault, 40b, __retl_efault - .word 41b, __retl_efault, 42b, __retl_efault - .word 43b, __retl_efault, 44b, __retl_efault - .word 45b, __retl_efault, 46b, __retl_efault - .word 47b, __retl_efault, 48b, __retl_efault - .word 49b, __retl_efault, 50b, __retl_efault - .word 51b, __retl_efault, 52b, __retl_efault - .word 53b, __retl_efault, 54b, __retl_efault - .word 55b, __retl_efault, 56b, __retl_efault - .word 57b, __retl_efault, 58b, __retl_efault - .word 59b, __retl_efault, 60b, __retl_efault - .word 61b, __retl_efault, 62b, __retl_efault - .word 63b, __retl_efault, 64b, __retl_efault - .word 65b, __retl_efault, 66b, __retl_efault - .previous diff --git a/arch/sparc64/kernel/sys_sparc.c b/arch/sparc64/kernel/sys_sparc.c deleted file mode 100644 index 39749e32dc7e..000000000000 --- a/arch/sparc64/kernel/sys_sparc.c +++ /dev/null @@ -1,914 +0,0 @@ -/* linux/arch/sparc64/kernel/sys_sparc.c - * - * This file contains various random system calls that - * have a non-standard calling sequence on the Linux/sparc - * platform. - */ - -#include <linux/errno.h> -#include <linux/types.h> -#include <linux/sched.h> -#include <linux/fs.h> -#include <linux/file.h> -#include <linux/mm.h> -#include <linux/sem.h> -#include <linux/msg.h> -#include <linux/shm.h> -#include <linux/stat.h> -#include <linux/mman.h> -#include <linux/utsname.h> -#include <linux/smp.h> -#include <linux/slab.h> -#include <linux/syscalls.h> -#include <linux/ipc.h> -#include <linux/personality.h> -#include <linux/random.h> - -#include <asm/uaccess.h> -#include <asm/utrap.h> -#include <asm/perfctr.h> -#include <asm/unistd.h> - -#include "entry.h" -#include "systbls.h" - -/* #define DEBUG_UNIMP_SYSCALL */ - -asmlinkage unsigned long sys_getpagesize(void) -{ - return PAGE_SIZE; -} - -#define VA_EXCLUDE_START (0x0000080000000000UL - (1UL << 32UL)) -#define VA_EXCLUDE_END (0xfffff80000000000UL + (1UL << 32UL)) - -/* Does addr --> addr+len fall within 4GB of the VA-space hole or - * overflow past the end of the 64-bit address space? - */ -static inline int invalid_64bit_range(unsigned long addr, unsigned long len) -{ - unsigned long va_exclude_start, va_exclude_end; - - va_exclude_start = VA_EXCLUDE_START; - va_exclude_end = VA_EXCLUDE_END; - - if (unlikely(len >= va_exclude_start)) - return 1; - - if (unlikely((addr + len) < addr)) - return 1; - - if (unlikely((addr >= va_exclude_start && addr < va_exclude_end) || - ((addr + len) >= va_exclude_start && - (addr + len) < va_exclude_end))) - return 1; - - return 0; -} - -/* Does start,end straddle the VA-space hole? */ -static inline int straddles_64bit_va_hole(unsigned long start, unsigned long end) -{ - unsigned long va_exclude_start, va_exclude_end; - - va_exclude_start = VA_EXCLUDE_START; - va_exclude_end = VA_EXCLUDE_END; - - if (likely(start < va_exclude_start && end < va_exclude_start)) - return 0; - - if (likely(start >= va_exclude_end && end >= va_exclude_end)) - return 0; - - return 1; -} - -/* These functions differ from the default implementations in - * mm/mmap.c in two ways: - * - * 1) For file backed MAP_SHARED mmap()'s we D-cache color align, - * for fixed such mappings we just validate what the user gave us. - * 2) For 64-bit tasks we avoid mapping anything within 4GB of - * the spitfire/niagara VA-hole. - */ - -static inline unsigned long COLOUR_ALIGN(unsigned long addr, - unsigned long pgoff) -{ - unsigned long base = (addr+SHMLBA-1)&~(SHMLBA-1); - unsigned long off = (pgoff<<PAGE_SHIFT) & (SHMLBA-1); - - return base + off; -} - -static inline unsigned long COLOUR_ALIGN_DOWN(unsigned long addr, - unsigned long pgoff) -{ - unsigned long base = addr & ~(SHMLBA-1); - unsigned long off = (pgoff<<PAGE_SHIFT) & (SHMLBA-1); - - if (base + off <= addr) - return base + off; - return base - off; -} - -unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags) -{ - struct mm_struct *mm = current->mm; - struct vm_area_struct * vma; - unsigned long task_size = TASK_SIZE; - unsigned long start_addr; - int do_color_align; - - if (flags & MAP_FIXED) { - /* We do not accept a shared mapping if it would violate - * cache aliasing constraints. - */ - if ((flags & MAP_SHARED) && - ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) - return -EINVAL; - return addr; - } - - if (test_thread_flag(TIF_32BIT)) - task_size = STACK_TOP32; - if (unlikely(len > task_size || len >= VA_EXCLUDE_START)) - return -ENOMEM; - - do_color_align = 0; - if (filp || (flags & MAP_SHARED)) - do_color_align = 1; - - if (addr) { - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - else - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); - if (task_size - len >= addr && - (!vma || addr + len <= vma->vm_start)) - return addr; - } - - if (len > mm->cached_hole_size) { - start_addr = addr = mm->free_area_cache; - } else { - start_addr = addr = TASK_UNMAPPED_BASE; - mm->cached_hole_size = 0; - } - - task_size -= len; - -full_search: - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - else - addr = PAGE_ALIGN(addr); - - for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { - /* At this point: (!vma || addr < vma->vm_end). */ - if (addr < VA_EXCLUDE_START && - (addr + len) >= VA_EXCLUDE_START) { - addr = VA_EXCLUDE_END; - vma = find_vma(mm, VA_EXCLUDE_END); - } - if (unlikely(task_size < addr)) { - if (start_addr != TASK_UNMAPPED_BASE) { - start_addr = addr = TASK_UNMAPPED_BASE; - mm->cached_hole_size = 0; - goto full_search; - } - return -ENOMEM; - } - if (likely(!vma || addr + len <= vma->vm_start)) { - /* - * Remember the place where we stopped the search: - */ - mm->free_area_cache = addr + len; - return addr; - } - if (addr + mm->cached_hole_size < vma->vm_start) - mm->cached_hole_size = vma->vm_start - addr; - - addr = vma->vm_end; - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - } -} - -unsigned long -arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, - const unsigned long len, const unsigned long pgoff, - const unsigned long flags) -{ - struct vm_area_struct *vma; - struct mm_struct *mm = current->mm; - unsigned long task_size = STACK_TOP32; - unsigned long addr = addr0; - int do_color_align; - - /* This should only ever run for 32-bit processes. */ - BUG_ON(!test_thread_flag(TIF_32BIT)); - - if (flags & MAP_FIXED) { - /* We do not accept a shared mapping if it would violate - * cache aliasing constraints. - */ - if ((flags & MAP_SHARED) && - ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) - return -EINVAL; - return addr; - } - - if (unlikely(len > task_size)) - return -ENOMEM; - - do_color_align = 0; - if (filp || (flags & MAP_SHARED)) - do_color_align = 1; - - /* requesting a specific address */ - if (addr) { - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - else - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); - if (task_size - len >= addr && - (!vma || addr + len <= vma->vm_start)) - return addr; - } - - /* check if free_area_cache is useful for us */ - if (len <= mm->cached_hole_size) { - mm->cached_hole_size = 0; - mm->free_area_cache = mm->mmap_base; - } - - /* either no address requested or can't fit in requested address hole */ - addr = mm->free_area_cache; - if (do_color_align) { - unsigned long base = COLOUR_ALIGN_DOWN(addr-len, pgoff); - - addr = base + len; - } - - /* make sure it can fit in the remaining address space */ - if (likely(addr > len)) { - vma = find_vma(mm, addr-len); - if (!vma || addr <= vma->vm_start) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr-len); - } - } - - if (unlikely(mm->mmap_base < len)) - goto bottomup; - - addr = mm->mmap_base-len; - if (do_color_align) - addr = COLOUR_ALIGN_DOWN(addr, pgoff); - - do { - /* - * Lookup failure means no vma is above this address, - * else if new region fits below vma->vm_start, - * return with success: - */ - vma = find_vma(mm, addr); - if (likely(!vma || addr+len <= vma->vm_start)) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr); - } - - /* remember the largest hole we saw so far */ - if (addr + mm->cached_hole_size < vma->vm_start) - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ - addr = vma->vm_start-len; - if (do_color_align) - addr = COLOUR_ALIGN_DOWN(addr, pgoff); - } while (likely(len < vma->vm_start)); - -bottomup: - /* - * A failed mmap() very likely causes application failure, - * so fall back to the bottom-up function here. This scenario - * can happen with large stack limits and large mmap() - * allocations. - */ - mm->cached_hole_size = ~0UL; - mm->free_area_cache = TASK_UNMAPPED_BASE; - addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); - /* - * Restore the topdown base: - */ - mm->free_area_cache = mm->mmap_base; - mm->cached_hole_size = ~0UL; - - return addr; -} - -/* Try to align mapping such that we align it as much as possible. */ -unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, unsigned long len, unsigned long pgoff, unsigned long flags) -{ - unsigned long align_goal, addr = -ENOMEM; - - if (flags & MAP_FIXED) { - /* Ok, don't mess with it. */ - return get_unmapped_area(NULL, orig_addr, len, pgoff, flags); - } - flags &= ~MAP_SHARED; - - align_goal = PAGE_SIZE; - if (len >= (4UL * 1024 * 1024)) - align_goal = (4UL * 1024 * 1024); - else if (len >= (512UL * 1024)) - align_goal = (512UL * 1024); - else if (len >= (64UL * 1024)) - align_goal = (64UL * 1024); - - do { - addr = get_unmapped_area(NULL, orig_addr, len + (align_goal - PAGE_SIZE), pgoff, flags); - if (!(addr & ~PAGE_MASK)) { - addr = (addr + (align_goal - 1UL)) & ~(align_goal - 1UL); - break; - } - - if (align_goal == (4UL * 1024 * 1024)) - align_goal = (512UL * 1024); - else if (align_goal == (512UL * 1024)) - align_goal = (64UL * 1024); - else - align_goal = PAGE_SIZE; - } while ((addr & ~PAGE_MASK) && align_goal > PAGE_SIZE); - - /* Mapping is smaller than 64K or larger areas could not - * be obtained. - */ - if (addr & ~PAGE_MASK) - addr = get_unmapped_area(NULL, orig_addr, len, pgoff, flags); - - return addr; -} - -/* Essentially the same as PowerPC... */ -void arch_pick_mmap_layout(struct mm_struct *mm) -{ - unsigned long random_factor = 0UL; - - if (current->flags & PF_RANDOMIZE) { - random_factor = get_random_int(); - if (test_thread_flag(TIF_32BIT)) - random_factor &= ((1 * 1024 * 1024) - 1); - else - random_factor = ((random_factor << PAGE_SHIFT) & - 0xffffffffUL); - } - - /* - * Fall back to the standard layout if the personality - * bit is set, or if the expected stack growth is unlimited: - */ - if (!test_thread_flag(TIF_32BIT) || - (current->personality & ADDR_COMPAT_LAYOUT) || - current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY || - sysctl_legacy_va_layout) { - mm->mmap_base = TASK_UNMAPPED_BASE + random_factor; - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { - /* We know it's 32-bit */ - unsigned long task_size = STACK_TOP32; - unsigned long gap; - - gap = current->signal->rlim[RLIMIT_STACK].rlim_cur; - if (gap < 128 * 1024 * 1024) - gap = 128 * 1024 * 1024; - if (gap > (task_size / 6 * 5)) - gap = (task_size / 6 * 5); - - mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor); - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -} - -asmlinkage unsigned long sparc_brk(unsigned long brk) -{ - /* People could try to be nasty and use ta 0x6d in 32bit programs */ - if (test_thread_flag(TIF_32BIT) && brk >= STACK_TOP32) - return current->mm->brk; - - if (unlikely(straddles_64bit_va_hole(current->mm->brk, brk))) - return current->mm->brk; - - return sys_brk(brk); -} - -/* - * sys_pipe() is the normal C calling standard for creating - * a pipe. It's not the way unix traditionally does this, though. - */ -asmlinkage long sparc_pipe(struct pt_regs *regs) -{ - int fd[2]; - int error; - - error = do_pipe_flags(fd, 0); - if (error) - goto out; - regs->u_regs[UREG_I1] = fd[1]; - error = fd[0]; -out: - return error; -} - -/* - * sys_ipc() is the de-multiplexer for the SysV IPC calls.. - * - * This is really horribly ugly. - */ - -asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, - unsigned long third, void __user *ptr, long fifth) -{ - long err; - - /* No need for backward compatibility. We can start fresh... */ - if (call <= SEMCTL) { - switch (call) { - case SEMOP: - err = sys_semtimedop(first, ptr, - (unsigned)second, NULL); - goto out; - case SEMTIMEDOP: - err = sys_semtimedop(first, ptr, (unsigned)second, - (const struct timespec __user *) - (unsigned long) fifth); - goto out; - case SEMGET: - err = sys_semget(first, (int)second, (int)third); - goto out; - case SEMCTL: { - err = sys_semctl(first, second, - (int)third | IPC_64, - (union semun) ptr); - goto out; - } - default: - err = -ENOSYS; - goto out; - }; - } - if (call <= MSGCTL) { - switch (call) { - case MSGSND: - err = sys_msgsnd(first, ptr, (size_t)second, - (int)third); - goto out; - case MSGRCV: - err = sys_msgrcv(first, ptr, (size_t)second, fifth, - (int)third); - goto out; - case MSGGET: - err = sys_msgget((key_t)first, (int)second); - goto out; - case MSGCTL: - err = sys_msgctl(first, (int)second | IPC_64, ptr); - goto out; - default: - err = -ENOSYS; - goto out; - }; - } - if (call <= SHMCTL) { - switch (call) { - case SHMAT: { - ulong raddr; - err = do_shmat(first, ptr, (int)second, &raddr); - if (!err) { - if (put_user(raddr, - (ulong __user *) third)) - err = -EFAULT; - } - goto out; - } - case SHMDT: - err = sys_shmdt(ptr); - goto out; - case SHMGET: - err = sys_shmget(first, (size_t)second, (int)third); - goto out; - case SHMCTL: - err = sys_shmctl(first, (int)second | IPC_64, ptr); - goto out; - default: - err = -ENOSYS; - goto out; - }; - } else { - err = -ENOSYS; - } -out: - return err; -} - -asmlinkage long sparc64_newuname(struct new_utsname __user *name) -{ - int ret = sys_newuname(name); - - if (current->personality == PER_LINUX32 && !ret) { - ret = (copy_to_user(name->machine, "sparc\0\0", 8) - ? -EFAULT : 0); - } - return ret; -} - -asmlinkage long sparc64_personality(unsigned long personality) -{ - int ret; - - if (current->personality == PER_LINUX32 && - personality == PER_LINUX) - personality = PER_LINUX32; - ret = sys_personality(personality); - if (ret == PER_LINUX32) - ret = PER_LINUX; - - return ret; -} - -int sparc_mmap_check(unsigned long addr, unsigned long len) -{ - if (test_thread_flag(TIF_32BIT)) { - if (len >= STACK_TOP32) - return -EINVAL; - - if (addr > STACK_TOP32 - len) - return -EINVAL; - } else { - if (len >= VA_EXCLUDE_START) - return -EINVAL; - - if (invalid_64bit_range(addr, len)) - return -EINVAL; - } - - return 0; -} - -/* Linux version of mmap */ -asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, unsigned long fd, - unsigned long off) -{ - struct file * file = NULL; - unsigned long retval = -EBADF; - - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - len = PAGE_ALIGN(len); - - down_write(¤t->mm->mmap_sem); - retval = do_mmap(file, addr, len, prot, flags, off); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return retval; -} - -asmlinkage long sys64_munmap(unsigned long addr, size_t len) -{ - long ret; - - if (invalid_64bit_range(addr, len)) - return -EINVAL; - - down_write(¤t->mm->mmap_sem); - ret = do_munmap(current->mm, addr, len); - up_write(¤t->mm->mmap_sem); - return ret; -} - -extern unsigned long do_mremap(unsigned long addr, - unsigned long old_len, unsigned long new_len, - unsigned long flags, unsigned long new_addr); - -asmlinkage unsigned long sys64_mremap(unsigned long addr, - unsigned long old_len, unsigned long new_len, - unsigned long flags, unsigned long new_addr) -{ - unsigned long ret = -EINVAL; - - if (test_thread_flag(TIF_32BIT)) - goto out; - if (unlikely(new_len >= VA_EXCLUDE_START)) - goto out; - if (unlikely(sparc_mmap_check(addr, old_len))) - goto out; - if (unlikely(sparc_mmap_check(new_addr, new_len))) - goto out; - - down_write(¤t->mm->mmap_sem); - ret = do_mremap(addr, old_len, new_len, flags, new_addr); - up_write(¤t->mm->mmap_sem); -out: - return ret; -} - -/* we come to here via sys_nis_syscall so it can setup the regs argument */ -asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs) -{ - static int count; - - /* Don't make the system unusable, if someone goes stuck */ - if (count++ > 5) - return -ENOSYS; - - printk ("Unimplemented SPARC system call %ld\n",regs->u_regs[1]); -#ifdef DEBUG_UNIMP_SYSCALL - show_regs (regs); -#endif - - return -ENOSYS; -} - -/* #define DEBUG_SPARC_BREAKPOINT */ - -asmlinkage void sparc_breakpoint(struct pt_regs *regs) -{ - siginfo_t info; - - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } -#ifdef DEBUG_SPARC_BREAKPOINT - printk ("TRAP: Entering kernel PC=%lx, nPC=%lx\n", regs->tpc, regs->tnpc); -#endif - info.si_signo = SIGTRAP; - info.si_errno = 0; - info.si_code = TRAP_BRKPT; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = 0; - force_sig_info(SIGTRAP, &info, current); -#ifdef DEBUG_SPARC_BREAKPOINT - printk ("TRAP: Returning to space: PC=%lx nPC=%lx\n", regs->tpc, regs->tnpc); -#endif -} - -extern void check_pending(int signum); - -asmlinkage long sys_getdomainname(char __user *name, int len) -{ - int nlen, err; - - if (len < 0) - return -EINVAL; - - down_read(&uts_sem); - - nlen = strlen(utsname()->domainname) + 1; - err = -EINVAL; - if (nlen > len) - goto out; - - err = -EFAULT; - if (!copy_to_user(name, utsname()->domainname, nlen)) - err = 0; - -out: - up_read(&uts_sem); - return err; -} - -asmlinkage long sys_utrap_install(utrap_entry_t type, - utrap_handler_t new_p, - utrap_handler_t new_d, - utrap_handler_t __user *old_p, - utrap_handler_t __user *old_d) -{ - if (type < UT_INSTRUCTION_EXCEPTION || type > UT_TRAP_INSTRUCTION_31) - return -EINVAL; - if (new_p == (utrap_handler_t)(long)UTH_NOCHANGE) { - if (old_p) { - if (!current_thread_info()->utraps) { - if (put_user(NULL, old_p)) - return -EFAULT; - } else { - if (put_user((utrap_handler_t)(current_thread_info()->utraps[type]), old_p)) - return -EFAULT; - } - } - if (old_d) { - if (put_user(NULL, old_d)) - return -EFAULT; - } - return 0; - } - if (!current_thread_info()->utraps) { - current_thread_info()->utraps = - kzalloc((UT_TRAP_INSTRUCTION_31+1)*sizeof(long), GFP_KERNEL); - if (!current_thread_info()->utraps) - return -ENOMEM; - current_thread_info()->utraps[0] = 1; - } else { - if ((utrap_handler_t)current_thread_info()->utraps[type] != new_p && - current_thread_info()->utraps[0] > 1) { - unsigned long *p = current_thread_info()->utraps; - - current_thread_info()->utraps = - kmalloc((UT_TRAP_INSTRUCTION_31+1)*sizeof(long), - GFP_KERNEL); - if (!current_thread_info()->utraps) { - current_thread_info()->utraps = p; - return -ENOMEM; - } - p[0]--; - current_thread_info()->utraps[0] = 1; - memcpy(current_thread_info()->utraps+1, p+1, - UT_TRAP_INSTRUCTION_31*sizeof(long)); - } - } - if (old_p) { - if (put_user((utrap_handler_t)(current_thread_info()->utraps[type]), old_p)) - return -EFAULT; - } - if (old_d) { - if (put_user(NULL, old_d)) - return -EFAULT; - } - current_thread_info()->utraps[type] = (long)new_p; - - return 0; -} - -asmlinkage long sparc_memory_ordering(unsigned long model, - struct pt_regs *regs) -{ - if (model >= 3) - return -EINVAL; - regs->tstate = (regs->tstate & ~TSTATE_MM) | (model << 14); - return 0; -} - -asmlinkage long sys_rt_sigaction(int sig, - const struct sigaction __user *act, - struct sigaction __user *oact, - void __user *restorer, - size_t sigsetsize) -{ - struct k_sigaction new_ka, old_ka; - int ret; - - /* XXX: Don't preclude handling different sized sigset_t's. */ - if (sigsetsize != sizeof(sigset_t)) - return -EINVAL; - - if (act) { - new_ka.ka_restorer = restorer; - if (copy_from_user(&new_ka.sa, act, sizeof(*act))) - return -EFAULT; - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - if (copy_to_user(oact, &old_ka.sa, sizeof(*oact))) - return -EFAULT; - } - - return ret; -} - -/* Invoked by rtrap code to update performance counters in - * user space. - */ -asmlinkage void update_perfctrs(void) -{ - unsigned long pic, tmp; - - read_pic(pic); - tmp = (current_thread_info()->kernel_cntd0 += (unsigned int)pic); - __put_user(tmp, current_thread_info()->user_cntd0); - tmp = (current_thread_info()->kernel_cntd1 += (pic >> 32)); - __put_user(tmp, current_thread_info()->user_cntd1); - reset_pic(); -} - -asmlinkage long sys_perfctr(int opcode, unsigned long arg0, unsigned long arg1, unsigned long arg2) -{ - int err = 0; - - switch(opcode) { - case PERFCTR_ON: - current_thread_info()->pcr_reg = arg2; - current_thread_info()->user_cntd0 = (u64 __user *) arg0; - current_thread_info()->user_cntd1 = (u64 __user *) arg1; - current_thread_info()->kernel_cntd0 = - current_thread_info()->kernel_cntd1 = 0; - write_pcr(arg2); - reset_pic(); - set_thread_flag(TIF_PERFCTR); - break; - - case PERFCTR_OFF: - err = -EINVAL; - if (test_thread_flag(TIF_PERFCTR)) { - current_thread_info()->user_cntd0 = - current_thread_info()->user_cntd1 = NULL; - current_thread_info()->pcr_reg = 0; - write_pcr(0); - clear_thread_flag(TIF_PERFCTR); - err = 0; - } - break; - - case PERFCTR_READ: { - unsigned long pic, tmp; - - if (!test_thread_flag(TIF_PERFCTR)) { - err = -EINVAL; - break; - } - read_pic(pic); - tmp = (current_thread_info()->kernel_cntd0 += (unsigned int)pic); - err |= __put_user(tmp, current_thread_info()->user_cntd0); - tmp = (current_thread_info()->kernel_cntd1 += (pic >> 32)); - err |= __put_user(tmp, current_thread_info()->user_cntd1); - reset_pic(); - break; - } - - case PERFCTR_CLRPIC: - if (!test_thread_flag(TIF_PERFCTR)) { - err = -EINVAL; - break; - } - current_thread_info()->kernel_cntd0 = - current_thread_info()->kernel_cntd1 = 0; - reset_pic(); - break; - - case PERFCTR_SETPCR: { - u64 __user *user_pcr = (u64 __user *)arg0; - - if (!test_thread_flag(TIF_PERFCTR)) { - err = -EINVAL; - break; - } - err |= __get_user(current_thread_info()->pcr_reg, user_pcr); - write_pcr(current_thread_info()->pcr_reg); - current_thread_info()->kernel_cntd0 = - current_thread_info()->kernel_cntd1 = 0; - reset_pic(); - break; - } - - case PERFCTR_GETPCR: { - u64 __user *user_pcr = (u64 __user *)arg0; - - if (!test_thread_flag(TIF_PERFCTR)) { - err = -EINVAL; - break; - } - err |= __put_user(current_thread_info()->pcr_reg, user_pcr); - break; - } - - default: - err = -EINVAL; - break; - }; - return err; -} - -/* - * Do a system call from kernel instead of calling sys_execve so we - * end up with proper pt_regs. - */ -int kernel_execve(const char *filename, char *const argv[], char *const envp[]) -{ - long __res; - register long __g1 __asm__ ("g1") = __NR_execve; - register long __o0 __asm__ ("o0") = (long)(filename); - register long __o1 __asm__ ("o1") = (long)(argv); - register long __o2 __asm__ ("o2") = (long)(envp); - asm volatile ("t 0x6d\n\t" - "sub %%g0, %%o0, %0\n\t" - "movcc %%xcc, %%o0, %0\n\t" - : "=r" (__res), "=&r" (__o0) - : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__g1) - : "cc"); - return __res; -} diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c deleted file mode 100644 index e800503879e4..000000000000 --- a/arch/sparc64/kernel/sys_sparc32.c +++ /dev/null @@ -1,682 +0,0 @@ -/* sys_sparc32.c: Conversion between 32bit and 64bit native syscalls. - * - * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - * Copyright (C) 1997, 2007 David S. Miller (davem@davemloft.net) - * - * These routines maintain argument size conversion between 32bit and 64bit - * environment. - */ - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/capability.h> -#include <linux/fs.h> -#include <linux/mm.h> -#include <linux/file.h> -#include <linux/signal.h> -#include <linux/resource.h> -#include <linux/times.h> -#include <linux/utsname.h> -#include <linux/smp.h> -#include <linux/smp_lock.h> -#include <linux/sem.h> -#include <linux/msg.h> -#include <linux/shm.h> -#include <linux/slab.h> -#include <linux/uio.h> -#include <linux/nfs_fs.h> -#include <linux/quota.h> -#include <linux/module.h> -#include <linux/sunrpc/svc.h> -#include <linux/nfsd/nfsd.h> -#include <linux/nfsd/cache.h> -#include <linux/nfsd/xdr.h> -#include <linux/nfsd/syscall.h> -#include <linux/poll.h> -#include <linux/personality.h> -#include <linux/stat.h> -#include <linux/filter.h> -#include <linux/highmem.h> -#include <linux/highuid.h> -#include <linux/mman.h> -#include <linux/ipv6.h> -#include <linux/in.h> -#include <linux/icmpv6.h> -#include <linux/syscalls.h> -#include <linux/sysctl.h> -#include <linux/binfmts.h> -#include <linux/dnotify.h> -#include <linux/security.h> -#include <linux/compat.h> -#include <linux/vfs.h> -#include <linux/netfilter_ipv4/ip_tables.h> -#include <linux/ptrace.h> - -#include <asm/types.h> -#include <asm/uaccess.h> -#include <asm/fpumacro.h> -#include <asm/mmu_context.h> -#include <asm/compat_signal.h> - -#ifdef CONFIG_SYSVIPC -asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth) -{ - int version; - - version = call >> 16; /* hack for backward compatibility */ - call &= 0xffff; - - switch (call) { - case SEMTIMEDOP: - if (fifth) - /* sign extend semid */ - return compat_sys_semtimedop((int)first, - compat_ptr(ptr), second, - compat_ptr(fifth)); - /* else fall through for normal semop() */ - case SEMOP: - /* struct sembuf is the same on 32 and 64bit :)) */ - /* sign extend semid */ - return sys_semtimedop((int)first, compat_ptr(ptr), second, - NULL); - case SEMGET: - /* sign extend key, nsems */ - return sys_semget((int)first, (int)second, third); - case SEMCTL: - /* sign extend semid, semnum */ - return compat_sys_semctl((int)first, (int)second, third, - compat_ptr(ptr)); - - case MSGSND: - /* sign extend msqid */ - return compat_sys_msgsnd((int)first, (int)second, third, - compat_ptr(ptr)); - case MSGRCV: - /* sign extend msqid, msgtyp */ - return compat_sys_msgrcv((int)first, second, (int)fifth, - third, version, compat_ptr(ptr)); - case MSGGET: - /* sign extend key */ - return sys_msgget((int)first, second); - case MSGCTL: - /* sign extend msqid */ - return compat_sys_msgctl((int)first, second, compat_ptr(ptr)); - - case SHMAT: - /* sign extend shmid */ - return compat_sys_shmat((int)first, second, third, version, - compat_ptr(ptr)); - case SHMDT: - return sys_shmdt(compat_ptr(ptr)); - case SHMGET: - /* sign extend key_t */ - return sys_shmget((int)first, second, third); - case SHMCTL: - /* sign extend shmid */ - return compat_sys_shmctl((int)first, second, compat_ptr(ptr)); - - default: - return -ENOSYS; - }; - - return -ENOSYS; -} -#endif - -asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low) -{ - if ((int)high < 0) - return -EINVAL; - else - return sys_truncate(path, (high << 32) | low); -} - -asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low) -{ - if ((int)high < 0) - return -EINVAL; - else - return sys_ftruncate(fd, (high << 32) | low); -} - -static int cp_compat_stat64(struct kstat *stat, - struct compat_stat64 __user *statbuf) -{ - int err; - - err = put_user(huge_encode_dev(stat->dev), &statbuf->st_dev); - err |= put_user(stat->ino, &statbuf->st_ino); - err |= put_user(stat->mode, &statbuf->st_mode); - err |= put_user(stat->nlink, &statbuf->st_nlink); - err |= put_user(stat->uid, &statbuf->st_uid); - err |= put_user(stat->gid, &statbuf->st_gid); - err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev); - err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]); - err |= put_user(stat->size, &statbuf->st_size); - err |= put_user(stat->blksize, &statbuf->st_blksize); - err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[0]); - err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[4]); - err |= put_user(stat->blocks, &statbuf->st_blocks); - err |= put_user(stat->atime.tv_sec, &statbuf->st_atime); - err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec); - err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime); - err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec); - err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime); - err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec); - err |= put_user(0, &statbuf->__unused4); - err |= put_user(0, &statbuf->__unused5); - - return err; -} - -asmlinkage long compat_sys_stat64(char __user * filename, - struct compat_stat64 __user *statbuf) -{ - struct kstat stat; - int error = vfs_stat(filename, &stat); - - if (!error) - error = cp_compat_stat64(&stat, statbuf); - return error; -} - -asmlinkage long compat_sys_lstat64(char __user * filename, - struct compat_stat64 __user *statbuf) -{ - struct kstat stat; - int error = vfs_lstat(filename, &stat); - - if (!error) - error = cp_compat_stat64(&stat, statbuf); - return error; -} - -asmlinkage long compat_sys_fstat64(unsigned int fd, - struct compat_stat64 __user * statbuf) -{ - struct kstat stat; - int error = vfs_fstat(fd, &stat); - - if (!error) - error = cp_compat_stat64(&stat, statbuf); - return error; -} - -asmlinkage long compat_sys_fstatat64(unsigned int dfd, char __user *filename, - struct compat_stat64 __user * statbuf, int flag) -{ - struct kstat stat; - int error = -EINVAL; - - if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0) - goto out; - - if (flag & AT_SYMLINK_NOFOLLOW) - error = vfs_lstat_fd(dfd, filename, &stat); - else - error = vfs_stat_fd(dfd, filename, &stat); - - if (!error) - error = cp_compat_stat64(&stat, statbuf); - -out: - return error; -} - -asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2) -{ - return sys_sysfs(option, arg1, arg2); -} - -asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval) -{ - struct timespec t; - int ret; - mm_segment_t old_fs = get_fs (); - - set_fs (KERNEL_DS); - ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t); - set_fs (old_fs); - if (put_compat_timespec(&t, interval)) - return -EFAULT; - return ret; -} - -asmlinkage long compat_sys_rt_sigprocmask(int how, - compat_sigset_t __user *set, - compat_sigset_t __user *oset, - compat_size_t sigsetsize) -{ - sigset_t s; - compat_sigset_t s32; - int ret; - mm_segment_t old_fs = get_fs(); - - if (set) { - if (copy_from_user (&s32, set, sizeof(compat_sigset_t))) - return -EFAULT; - switch (_NSIG_WORDS) { - case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32); - case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32); - case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32); - case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32); - } - } - set_fs (KERNEL_DS); - ret = sys_rt_sigprocmask(how, - set ? (sigset_t __user *) &s : NULL, - oset ? (sigset_t __user *) &s : NULL, - sigsetsize); - set_fs (old_fs); - if (ret) return ret; - if (oset) { - switch (_NSIG_WORDS) { - case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3]; - case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2]; - case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1]; - case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0]; - } - if (copy_to_user (oset, &s32, sizeof(compat_sigset_t))) - return -EFAULT; - } - return 0; -} - -asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set, - compat_size_t sigsetsize) -{ - sigset_t s; - compat_sigset_t s32; - int ret; - mm_segment_t old_fs = get_fs(); - - set_fs (KERNEL_DS); - ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize); - set_fs (old_fs); - if (!ret) { - switch (_NSIG_WORDS) { - case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3]; - case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2]; - case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1]; - case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0]; - } - if (copy_to_user (set, &s32, sizeof(compat_sigset_t))) - return -EFAULT; - } - return ret; -} - -asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig, - struct compat_siginfo __user *uinfo) -{ - siginfo_t info; - int ret; - mm_segment_t old_fs = get_fs(); - - if (copy_siginfo_from_user32(&info, uinfo)) - return -EFAULT; - - set_fs (KERNEL_DS); - ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info); - set_fs (old_fs); - return ret; -} - -asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act, - struct old_sigaction32 __user *oact) -{ - struct k_sigaction new_ka, old_ka; - int ret; - - WARN_ON_ONCE(sig >= 0); - sig = -sig; - - if (act) { - compat_old_sigset_t mask; - u32 u_handler, u_restorer; - - ret = get_user(u_handler, &act->sa_handler); - new_ka.sa.sa_handler = compat_ptr(u_handler); - ret |= __get_user(u_restorer, &act->sa_restorer); - new_ka.sa.sa_restorer = compat_ptr(u_restorer); - ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags); - ret |= __get_user(mask, &act->sa_mask); - if (ret) - return ret; - new_ka.ka_restorer = NULL; - siginitset(&new_ka.sa.sa_mask, mask); - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler); - ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer); - ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags); - ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask); - } - - return ret; -} - -asmlinkage long compat_sys_rt_sigaction(int sig, - struct sigaction32 __user *act, - struct sigaction32 __user *oact, - void __user *restorer, - compat_size_t sigsetsize) -{ - struct k_sigaction new_ka, old_ka; - int ret; - compat_sigset_t set32; - - /* XXX: Don't preclude handling different sized sigset_t's. */ - if (sigsetsize != sizeof(compat_sigset_t)) - return -EINVAL; - - if (act) { - u32 u_handler, u_restorer; - - new_ka.ka_restorer = restorer; - ret = get_user(u_handler, &act->sa_handler); - new_ka.sa.sa_handler = compat_ptr(u_handler); - ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t)); - switch (_NSIG_WORDS) { - case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32); - case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32); - case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32); - case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32); - } - ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags); - ret |= __get_user(u_restorer, &act->sa_restorer); - new_ka.sa.sa_restorer = compat_ptr(u_restorer); - if (ret) - return -EFAULT; - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - switch (_NSIG_WORDS) { - case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3]; - case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2]; - case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1]; - case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0]; - } - ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler); - ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t)); - ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags); - ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer); - if (ret) - ret = -EFAULT; - } - - return ret; -} - -/* - * sparc32_execve() executes a new program after the asm stub has set - * things up for us. This should basically do what I want it to. - */ -asmlinkage long sparc32_execve(struct pt_regs *regs) -{ - int error, base = 0; - char *filename; - - /* User register window flush is done by entry.S */ - - /* Check for indirect call. */ - if ((u32)regs->u_regs[UREG_G1] == 0) - base = 1; - - filename = getname(compat_ptr(regs->u_regs[base + UREG_I0])); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - goto out; - - error = compat_do_execve(filename, - compat_ptr(regs->u_regs[base + UREG_I1]), - compat_ptr(regs->u_regs[base + UREG_I2]), regs); - - putname(filename); - - if (!error) { - fprs_write(0); - current_thread_info()->xfsr[0] = 0; - current_thread_info()->fpsaved[0] = 0; - regs->tstate &= ~TSTATE_PEF; - } -out: - return error; -} - -#ifdef CONFIG_MODULES - -asmlinkage long sys32_init_module(void __user *umod, u32 len, - const char __user *uargs) -{ - return sys_init_module(umod, len, uargs); -} - -asmlinkage long sys32_delete_module(const char __user *name_user, - unsigned int flags) -{ - return sys_delete_module(name_user, flags); -} - -#else /* CONFIG_MODULES */ - -asmlinkage long sys32_init_module(const char __user *name_user, - struct module __user *mod_user) -{ - return -ENOSYS; -} - -asmlinkage long sys32_delete_module(const char __user *name_user) -{ - return -ENOSYS; -} - -#endif /* CONFIG_MODULES */ - -asmlinkage compat_ssize_t sys32_pread64(unsigned int fd, - char __user *ubuf, - compat_size_t count, - unsigned long poshi, - unsigned long poslo) -{ - return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo); -} - -asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd, - char __user *ubuf, - compat_size_t count, - unsigned long poshi, - unsigned long poslo) -{ - return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo); -} - -asmlinkage long compat_sys_readahead(int fd, - unsigned long offhi, - unsigned long offlo, - compat_size_t count) -{ - return sys_readahead(fd, (offhi << 32) | offlo, count); -} - -long compat_sys_fadvise64(int fd, - unsigned long offhi, - unsigned long offlo, - compat_size_t len, int advice) -{ - return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice); -} - -long compat_sys_fadvise64_64(int fd, - unsigned long offhi, unsigned long offlo, - unsigned long lenhi, unsigned long lenlo, - int advice) -{ - return sys_fadvise64_64(fd, - (offhi << 32) | offlo, - (lenhi << 32) | lenlo, - advice); -} - -asmlinkage long compat_sys_sendfile(int out_fd, int in_fd, - compat_off_t __user *offset, - compat_size_t count) -{ - mm_segment_t old_fs = get_fs(); - int ret; - off_t of; - - if (offset && get_user(of, offset)) - return -EFAULT; - - set_fs(KERNEL_DS); - ret = sys_sendfile(out_fd, in_fd, - offset ? (off_t __user *) &of : NULL, - count); - set_fs(old_fs); - - if (offset && put_user(of, offset)) - return -EFAULT; - - return ret; -} - -asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd, - compat_loff_t __user *offset, - compat_size_t count) -{ - mm_segment_t old_fs = get_fs(); - int ret; - loff_t lof; - - if (offset && get_user(lof, offset)) - return -EFAULT; - - set_fs(KERNEL_DS); - ret = sys_sendfile64(out_fd, in_fd, - offset ? (loff_t __user *) &lof : NULL, - count); - set_fs(old_fs); - - if (offset && put_user(lof, offset)) - return -EFAULT; - - return ret; -} - -/* This is just a version for 32-bit applications which does - * not force O_LARGEFILE on. - */ - -asmlinkage long sparc32_open(const char __user *filename, - int flags, int mode) -{ - return do_sys_open(AT_FDCWD, filename, flags, mode); -} - -extern unsigned long do_mremap(unsigned long addr, - unsigned long old_len, unsigned long new_len, - unsigned long flags, unsigned long new_addr); - -asmlinkage unsigned long sys32_mremap(unsigned long addr, - unsigned long old_len, unsigned long new_len, - unsigned long flags, u32 __new_addr) -{ - unsigned long ret = -EINVAL; - unsigned long new_addr = __new_addr; - - if (unlikely(sparc_mmap_check(addr, old_len))) - goto out; - if (unlikely(sparc_mmap_check(new_addr, new_len))) - goto out; - down_write(¤t->mm->mmap_sem); - ret = do_mremap(addr, old_len, new_len, flags, new_addr); - up_write(¤t->mm->mmap_sem); -out: - return ret; -} - -struct __sysctl_args32 { - u32 name; - int nlen; - u32 oldval; - u32 oldlenp; - u32 newval; - u32 newlen; - u32 __unused[4]; -}; - -asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args) -{ -#ifndef CONFIG_SYSCTL_SYSCALL - return -ENOSYS; -#else - struct __sysctl_args32 tmp; - int error; - size_t oldlen, __user *oldlenp = NULL; - unsigned long addr = (((unsigned long)&args->__unused[0]) + 7UL) & ~7UL; - - if (copy_from_user(&tmp, args, sizeof(tmp))) - return -EFAULT; - - if (tmp.oldval && tmp.oldlenp) { - /* Duh, this is ugly and might not work if sysctl_args - is in read-only memory, but do_sysctl does indirectly - a lot of uaccess in both directions and we'd have to - basically copy the whole sysctl.c here, and - glibc's __sysctl uses rw memory for the structure - anyway. */ - if (get_user(oldlen, (u32 __user *)(unsigned long)tmp.oldlenp) || - put_user(oldlen, (size_t __user *)addr)) - return -EFAULT; - oldlenp = (size_t __user *)addr; - } - - lock_kernel(); - error = do_sysctl((int __user *)(unsigned long) tmp.name, - tmp.nlen, - (void __user *)(unsigned long) tmp.oldval, - oldlenp, - (void __user *)(unsigned long) tmp.newval, - tmp.newlen); - unlock_kernel(); - if (oldlenp) { - if (!error) { - if (get_user(oldlen, (size_t __user *)addr) || - put_user(oldlen, (u32 __user *)(unsigned long) tmp.oldlenp)) - error = -EFAULT; - } - if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused))) - error = -EFAULT; - } - return error; -#endif -} - -long sys32_lookup_dcookie(unsigned long cookie_high, - unsigned long cookie_low, - char __user *buf, size_t len) -{ - return sys_lookup_dcookie((cookie_high << 32) | cookie_low, - buf, len); -} - -long compat_sync_file_range(int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, int flags) -{ - return sys_sync_file_range(fd, - (off_high << 32) | off_low, - (nb_high << 32) | nb_low, - flags); -} - -asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo, - u32 lenhi, u32 lenlo) -{ - return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo, - ((loff_t)lenhi << 32) | lenlo); -} diff --git a/arch/sparc64/kernel/syscalls.S b/arch/sparc64/kernel/syscalls.S deleted file mode 100644 index 7a6786a71363..000000000000 --- a/arch/sparc64/kernel/syscalls.S +++ /dev/null @@ -1,279 +0,0 @@ - /* SunOS's execv() call only specifies the argv argument, the - * environment settings are the same as the calling processes. - */ -sys_execve: - sethi %hi(sparc_execve), %g1 - ba,pt %xcc, execve_merge - or %g1, %lo(sparc_execve), %g1 - -#ifdef CONFIG_COMPAT -sunos_execv: - stx %g0, [%sp + PTREGS_OFF + PT_V9_I2] -sys32_execve: - sethi %hi(sparc32_execve), %g1 - or %g1, %lo(sparc32_execve), %g1 -#endif - -execve_merge: - flushw - jmpl %g1, %g0 - add %sp, PTREGS_OFF, %o0 - - .align 32 -sys_pipe: - ba,pt %xcc, sparc_pipe - add %sp, PTREGS_OFF, %o0 -sys_nis_syscall: - ba,pt %xcc, c_sys_nis_syscall - add %sp, PTREGS_OFF, %o0 -sys_memory_ordering: - ba,pt %xcc, sparc_memory_ordering - add %sp, PTREGS_OFF, %o1 -sys_sigaltstack: - ba,pt %xcc, do_sigaltstack - add %i6, STACK_BIAS, %o2 -#ifdef CONFIG_COMPAT -sys32_sigstack: - ba,pt %xcc, do_sys32_sigstack - mov %i6, %o2 -sys32_sigaltstack: - ba,pt %xcc, do_sys32_sigaltstack - mov %i6, %o2 -#endif - .align 32 -#ifdef CONFIG_COMPAT -sys32_sigreturn: - add %sp, PTREGS_OFF, %o0 - call do_sigreturn32 - add %o7, 1f-.-4, %o7 - nop -#endif -sys_rt_sigreturn: - add %sp, PTREGS_OFF, %o0 - call do_rt_sigreturn - add %o7, 1f-.-4, %o7 - nop -#ifdef CONFIG_COMPAT -sys32_rt_sigreturn: - add %sp, PTREGS_OFF, %o0 - call do_rt_sigreturn32 - add %o7, 1f-.-4, %o7 - nop -#endif - .align 32 -1: ldx [%g6 + TI_FLAGS], %l5 - andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0 - be,pt %icc, rtrap - nop - call syscall_trace_leave - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - - /* This is how fork() was meant to be done, 8 instruction entry. - * - * I questioned the following code briefly, let me clear things - * up so you must not reason on it like I did. - * - * Know the fork_kpsr etc. we use in the sparc32 port? We don't - * need it here because the only piece of window state we copy to - * the child is the CWP register. Even if the parent sleeps, - * we are safe because we stuck it into pt_regs of the parent - * so it will not change. - * - * XXX This raises the question, whether we can do the same on - * XXX sparc32 to get rid of fork_kpsr _and_ fork_kwim. The - * XXX answer is yes. We stick fork_kpsr in UREG_G0 and - * XXX fork_kwim in UREG_G1 (global registers are considered - * XXX volatile across a system call in the sparc ABI I think - * XXX if it isn't we can use regs->y instead, anyone who depends - * XXX upon the Y register being preserved across a fork deserves - * XXX to lose). - * - * In fact we should take advantage of that fact for other things - * during system calls... - */ - .align 32 -sys_vfork: /* Under Linux, vfork and fork are just special cases of clone. */ - sethi %hi(0x4000 | 0x0100 | SIGCHLD), %o0 - or %o0, %lo(0x4000 | 0x0100 | SIGCHLD), %o0 - ba,pt %xcc, sys_clone -sys_fork: - clr %o1 - mov SIGCHLD, %o0 -sys_clone: - flushw - movrz %o1, %fp, %o1 - mov 0, %o3 - ba,pt %xcc, sparc_do_fork - add %sp, PTREGS_OFF, %o2 - - .globl ret_from_syscall -ret_from_syscall: - /* Clear current_thread_info()->new_child, and - * check performance counter stuff too. - */ - stb %g0, [%g6 + TI_NEW_CHILD] - ldx [%g6 + TI_FLAGS], %l0 - call schedule_tail - mov %g7, %o0 - andcc %l0, _TIF_PERFCTR, %g0 - be,pt %icc, 1f - nop - ldx [%g6 + TI_PCR], %o7 - wr %g0, %o7, %pcr - - /* Blackbird errata workaround. See commentary in - * smp.c:smp_percpu_timer_interrupt() for more - * information. - */ - ba,pt %xcc, 99f - nop - - .align 64 -99: wr %g0, %g0, %pic - rd %pic, %g0 - -1: ba,pt %xcc, ret_sys_call - ldx [%sp + PTREGS_OFF + PT_V9_I0], %o0 - - .globl sparc_exit - .type sparc_exit,#function -sparc_exit: - rdpr %pstate, %g2 - wrpr %g2, PSTATE_IE, %pstate - rdpr %otherwin, %g1 - rdpr %cansave, %g3 - add %g3, %g1, %g3 - wrpr %g3, 0x0, %cansave - wrpr %g0, 0x0, %otherwin - wrpr %g2, 0x0, %pstate - ba,pt %xcc, sys_exit - stb %g0, [%g6 + TI_WSAVED] - .size sparc_exit,.-sparc_exit - -linux_sparc_ni_syscall: - sethi %hi(sys_ni_syscall), %l7 - ba,pt %xcc, 4f - or %l7, %lo(sys_ni_syscall), %l7 - -linux_syscall_trace32: - call syscall_trace_enter - add %sp, PTREGS_OFF, %o0 - brnz,pn %o0, 3f - mov -ENOSYS, %o0 - srl %i0, 0, %o0 - srl %i4, 0, %o4 - srl %i1, 0, %o1 - srl %i2, 0, %o2 - ba,pt %xcc, 2f - srl %i3, 0, %o3 - -linux_syscall_trace: - call syscall_trace_enter - add %sp, PTREGS_OFF, %o0 - brnz,pn %o0, 3f - mov -ENOSYS, %o0 - mov %i0, %o0 - mov %i1, %o1 - mov %i2, %o2 - mov %i3, %o3 - b,pt %xcc, 2f - mov %i4, %o4 - - - /* Linux 32-bit system calls enter here... */ - .align 32 - .globl linux_sparc_syscall32 -linux_sparc_syscall32: - /* Direct access to user regs, much faster. */ - cmp %g1, NR_SYSCALLS ! IEU1 Group - bgeu,pn %xcc, linux_sparc_ni_syscall ! CTI - srl %i0, 0, %o0 ! IEU0 - sll %g1, 2, %l4 ! IEU0 Group - srl %i4, 0, %o4 ! IEU1 - lduw [%l7 + %l4], %l7 ! Load - srl %i1, 0, %o1 ! IEU0 Group - ldx [%g6 + TI_FLAGS], %l0 ! Load - - srl %i5, 0, %o5 ! IEU1 - srl %i2, 0, %o2 ! IEU0 Group - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0 - bne,pn %icc, linux_syscall_trace32 ! CTI - mov %i0, %l5 ! IEU1 - call %l7 ! CTI Group brk forced - srl %i3, 0, %o3 ! IEU0 - ba,a,pt %xcc, 3f - - /* Linux native system calls enter here... */ - .align 32 - .globl linux_sparc_syscall -linux_sparc_syscall: - /* Direct access to user regs, much faster. */ - cmp %g1, NR_SYSCALLS ! IEU1 Group - bgeu,pn %xcc, linux_sparc_ni_syscall ! CTI - mov %i0, %o0 ! IEU0 - sll %g1, 2, %l4 ! IEU0 Group - mov %i1, %o1 ! IEU1 - lduw [%l7 + %l4], %l7 ! Load -4: mov %i2, %o2 ! IEU0 Group - ldx [%g6 + TI_FLAGS], %l0 ! Load - - mov %i3, %o3 ! IEU1 - mov %i4, %o4 ! IEU0 Group - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0 - bne,pn %icc, linux_syscall_trace ! CTI Group - mov %i0, %l5 ! IEU0 -2: call %l7 ! CTI Group brk forced - mov %i5, %o5 ! IEU0 - nop - -3: stx %o0, [%sp + PTREGS_OFF + PT_V9_I0] -ret_sys_call: - ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %g3 - ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc - sra %o0, 0, %o0 - mov %ulo(TSTATE_XCARRY | TSTATE_ICARRY), %g2 - sllx %g2, 32, %g2 - - /* Check if force_successful_syscall_return() - * was invoked. - */ - ldub [%g6 + TI_SYS_NOERROR], %l2 - brnz,a,pn %l2, 80f - stb %g0, [%g6 + TI_SYS_NOERROR] - - cmp %o0, -ERESTART_RESTARTBLOCK - bgeu,pn %xcc, 1f - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %l6 -80: - /* System call success, clear Carry condition code. */ - andn %g3, %g2, %g3 - stx %g3, [%sp + PTREGS_OFF + PT_V9_TSTATE] - bne,pn %icc, linux_syscall_trace2 - add %l1, 0x4, %l2 ! npc = npc+4 - stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC] - ba,pt %xcc, rtrap - stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] - -1: - /* System call failure, set Carry condition code. - * Also, get abs(errno) to return to the process. - */ - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %l6 - sub %g0, %o0, %o0 - or %g3, %g2, %g3 - stx %o0, [%sp + PTREGS_OFF + PT_V9_I0] - stx %g3, [%sp + PTREGS_OFF + PT_V9_TSTATE] - bne,pn %icc, linux_syscall_trace2 - add %l1, 0x4, %l2 ! npc = npc+4 - stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC] - - b,pt %xcc, rtrap - stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] -linux_syscall_trace2: - call syscall_trace_leave - add %sp, PTREGS_OFF, %o0 - stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC] - ba,pt %xcc, rtrap - stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] diff --git a/arch/sparc64/kernel/sysfs.c b/arch/sparc64/kernel/sysfs.c deleted file mode 100644 index 84e5ce146713..000000000000 --- a/arch/sparc64/kernel/sysfs.c +++ /dev/null @@ -1,313 +0,0 @@ -/* sysfs.c: Toplogy sysfs support code for sparc64. - * - * Copyright (C) 2007 David S. Miller <davem@davemloft.net> - */ -#include <linux/sysdev.h> -#include <linux/cpu.h> -#include <linux/smp.h> -#include <linux/percpu.h> -#include <linux/init.h> - -#include <asm/hypervisor.h> -#include <asm/spitfire.h> - -static DEFINE_PER_CPU(struct hv_mmu_statistics, mmu_stats) __attribute__((aligned(64))); - -#define SHOW_MMUSTAT_ULONG(NAME) \ -static ssize_t show_##NAME(struct sys_device *dev, \ - struct sysdev_attribute *attr, char *buf) \ -{ \ - struct hv_mmu_statistics *p = &per_cpu(mmu_stats, dev->id); \ - return sprintf(buf, "%lu\n", p->NAME); \ -} \ -static SYSDEV_ATTR(NAME, 0444, show_##NAME, NULL) - -SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctx0_8k_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctx0_8k_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctx0_64k_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctx0_64k_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctx0_4mb_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctx0_4mb_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctx0_256mb_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctx0_256mb_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctxnon0_8k_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctxnon0_8k_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctxnon0_64k_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctxnon0_64k_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctxnon0_4mb_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctxnon0_4mb_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_hits_ctxnon0_256mb_tte); -SHOW_MMUSTAT_ULONG(immu_tsb_ticks_ctxnon0_256mb_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctx0_8k_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctx0_8k_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctx0_64k_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctx0_64k_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctx0_4mb_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctx0_4mb_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctx0_256mb_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctx0_256mb_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctxnon0_8k_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctxnon0_8k_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctxnon0_64k_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctxnon0_64k_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctxnon0_4mb_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctxnon0_4mb_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_hits_ctxnon0_256mb_tte); -SHOW_MMUSTAT_ULONG(dmmu_tsb_ticks_ctxnon0_256mb_tte); - -static struct attribute *mmu_stat_attrs[] = { - &attr_immu_tsb_hits_ctx0_8k_tte.attr, - &attr_immu_tsb_ticks_ctx0_8k_tte.attr, - &attr_immu_tsb_hits_ctx0_64k_tte.attr, - &attr_immu_tsb_ticks_ctx0_64k_tte.attr, - &attr_immu_tsb_hits_ctx0_4mb_tte.attr, - &attr_immu_tsb_ticks_ctx0_4mb_tte.attr, - &attr_immu_tsb_hits_ctx0_256mb_tte.attr, - &attr_immu_tsb_ticks_ctx0_256mb_tte.attr, - &attr_immu_tsb_hits_ctxnon0_8k_tte.attr, - &attr_immu_tsb_ticks_ctxnon0_8k_tte.attr, - &attr_immu_tsb_hits_ctxnon0_64k_tte.attr, - &attr_immu_tsb_ticks_ctxnon0_64k_tte.attr, - &attr_immu_tsb_hits_ctxnon0_4mb_tte.attr, - &attr_immu_tsb_ticks_ctxnon0_4mb_tte.attr, - &attr_immu_tsb_hits_ctxnon0_256mb_tte.attr, - &attr_immu_tsb_ticks_ctxnon0_256mb_tte.attr, - &attr_dmmu_tsb_hits_ctx0_8k_tte.attr, - &attr_dmmu_tsb_ticks_ctx0_8k_tte.attr, - &attr_dmmu_tsb_hits_ctx0_64k_tte.attr, - &attr_dmmu_tsb_ticks_ctx0_64k_tte.attr, - &attr_dmmu_tsb_hits_ctx0_4mb_tte.attr, - &attr_dmmu_tsb_ticks_ctx0_4mb_tte.attr, - &attr_dmmu_tsb_hits_ctx0_256mb_tte.attr, - &attr_dmmu_tsb_ticks_ctx0_256mb_tte.attr, - &attr_dmmu_tsb_hits_ctxnon0_8k_tte.attr, - &attr_dmmu_tsb_ticks_ctxnon0_8k_tte.attr, - &attr_dmmu_tsb_hits_ctxnon0_64k_tte.attr, - &attr_dmmu_tsb_ticks_ctxnon0_64k_tte.attr, - &attr_dmmu_tsb_hits_ctxnon0_4mb_tte.attr, - &attr_dmmu_tsb_ticks_ctxnon0_4mb_tte.attr, - &attr_dmmu_tsb_hits_ctxnon0_256mb_tte.attr, - &attr_dmmu_tsb_ticks_ctxnon0_256mb_tte.attr, - NULL, -}; - -static struct attribute_group mmu_stat_group = { - .attrs = mmu_stat_attrs, - .name = "mmu_stats", -}; - -/* XXX convert to rusty's on_one_cpu */ -static unsigned long run_on_cpu(unsigned long cpu, - unsigned long (*func)(unsigned long), - unsigned long arg) -{ - cpumask_t old_affinity = current->cpus_allowed; - unsigned long ret; - - /* should return -EINVAL to userspace */ - if (set_cpus_allowed(current, cpumask_of_cpu(cpu))) - return 0; - - ret = func(arg); - - set_cpus_allowed(current, old_affinity); - - return ret; -} - -static unsigned long read_mmustat_enable(unsigned long junk) -{ - unsigned long ra = 0; - - sun4v_mmustat_info(&ra); - - return ra != 0; -} - -static unsigned long write_mmustat_enable(unsigned long val) -{ - unsigned long ra, orig_ra; - - if (val) - ra = __pa(&per_cpu(mmu_stats, smp_processor_id())); - else - ra = 0UL; - - return sun4v_mmustat_conf(ra, &orig_ra); -} - -static ssize_t show_mmustat_enable(struct sys_device *s, - struct sysdev_attribute *attr, char *buf) -{ - unsigned long val = run_on_cpu(s->id, read_mmustat_enable, 0); - return sprintf(buf, "%lx\n", val); -} - -static ssize_t store_mmustat_enable(struct sys_device *s, - struct sysdev_attribute *attr, const char *buf, - size_t count) -{ - unsigned long val, err; - int ret = sscanf(buf, "%ld", &val); - - if (ret != 1) - return -EINVAL; - - err = run_on_cpu(s->id, write_mmustat_enable, val); - if (err) - return -EIO; - - return count; -} - -static SYSDEV_ATTR(mmustat_enable, 0644, show_mmustat_enable, store_mmustat_enable); - -static int mmu_stats_supported; - -static int register_mmu_stats(struct sys_device *s) -{ - if (!mmu_stats_supported) - return 0; - sysdev_create_file(s, &attr_mmustat_enable); - return sysfs_create_group(&s->kobj, &mmu_stat_group); -} - -#ifdef CONFIG_HOTPLUG_CPU -static void unregister_mmu_stats(struct sys_device *s) -{ - if (!mmu_stats_supported) - return; - sysfs_remove_group(&s->kobj, &mmu_stat_group); - sysdev_remove_file(s, &attr_mmustat_enable); -} -#endif - -#define SHOW_CPUDATA_ULONG_NAME(NAME, MEMBER) \ -static ssize_t show_##NAME(struct sys_device *dev, \ - struct sysdev_attribute *attr, char *buf) \ -{ \ - cpuinfo_sparc *c = &cpu_data(dev->id); \ - return sprintf(buf, "%lu\n", c->MEMBER); \ -} - -#define SHOW_CPUDATA_UINT_NAME(NAME, MEMBER) \ -static ssize_t show_##NAME(struct sys_device *dev, \ - struct sysdev_attribute *attr, char *buf) \ -{ \ - cpuinfo_sparc *c = &cpu_data(dev->id); \ - return sprintf(buf, "%u\n", c->MEMBER); \ -} - -SHOW_CPUDATA_ULONG_NAME(clock_tick, clock_tick); -SHOW_CPUDATA_UINT_NAME(l1_dcache_size, dcache_size); -SHOW_CPUDATA_UINT_NAME(l1_dcache_line_size, dcache_line_size); -SHOW_CPUDATA_UINT_NAME(l1_icache_size, icache_size); -SHOW_CPUDATA_UINT_NAME(l1_icache_line_size, icache_line_size); -SHOW_CPUDATA_UINT_NAME(l2_cache_size, ecache_size); -SHOW_CPUDATA_UINT_NAME(l2_cache_line_size, ecache_line_size); - -static struct sysdev_attribute cpu_core_attrs[] = { - _SYSDEV_ATTR(clock_tick, 0444, show_clock_tick, NULL), - _SYSDEV_ATTR(l1_dcache_size, 0444, show_l1_dcache_size, NULL), - _SYSDEV_ATTR(l1_dcache_line_size, 0444, show_l1_dcache_line_size, NULL), - _SYSDEV_ATTR(l1_icache_size, 0444, show_l1_icache_size, NULL), - _SYSDEV_ATTR(l1_icache_line_size, 0444, show_l1_icache_line_size, NULL), - _SYSDEV_ATTR(l2_cache_size, 0444, show_l2_cache_size, NULL), - _SYSDEV_ATTR(l2_cache_line_size, 0444, show_l2_cache_line_size, NULL), -}; - -static DEFINE_PER_CPU(struct cpu, cpu_devices); - -static void register_cpu_online(unsigned int cpu) -{ - struct cpu *c = &per_cpu(cpu_devices, cpu); - struct sys_device *s = &c->sysdev; - int i; - - for (i = 0; i < ARRAY_SIZE(cpu_core_attrs); i++) - sysdev_create_file(s, &cpu_core_attrs[i]); - - register_mmu_stats(s); -} - -#ifdef CONFIG_HOTPLUG_CPU -static void unregister_cpu_online(unsigned int cpu) -{ - struct cpu *c = &per_cpu(cpu_devices, cpu); - struct sys_device *s = &c->sysdev; - int i; - - unregister_mmu_stats(s); - for (i = 0; i < ARRAY_SIZE(cpu_core_attrs); i++) - sysdev_remove_file(s, &cpu_core_attrs[i]); -} -#endif - -static int __cpuinit sysfs_cpu_notify(struct notifier_block *self, - unsigned long action, void *hcpu) -{ - unsigned int cpu = (unsigned int)(long)hcpu; - - switch (action) { - case CPU_ONLINE: - case CPU_ONLINE_FROZEN: - register_cpu_online(cpu); - break; -#ifdef CONFIG_HOTPLUG_CPU - case CPU_DEAD: - case CPU_DEAD_FROZEN: - unregister_cpu_online(cpu); - break; -#endif - } - return NOTIFY_OK; -} - -static struct notifier_block __cpuinitdata sysfs_cpu_nb = { - .notifier_call = sysfs_cpu_notify, -}; - -static void __init check_mmu_stats(void) -{ - unsigned long dummy1, err; - - if (tlb_type != hypervisor) - return; - - err = sun4v_mmustat_info(&dummy1); - if (!err) - mmu_stats_supported = 1; -} - -static void register_nodes(void) -{ -#ifdef CONFIG_NUMA - int i; - - for (i = 0; i < MAX_NUMNODES; i++) - register_one_node(i); -#endif -} - -static int __init topology_init(void) -{ - int cpu; - - register_nodes(); - - check_mmu_stats(); - - register_cpu_notifier(&sysfs_cpu_nb); - - for_each_possible_cpu(cpu) { - struct cpu *c = &per_cpu(cpu_devices, cpu); - - register_cpu(c, cpu); - if (cpu_online(cpu)) - register_cpu_online(cpu); - } - - return 0; -} - -subsys_initcall(topology_init); diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S deleted file mode 100644 index 9fc78cf354bd..000000000000 --- a/arch/sparc64/kernel/systbls.S +++ /dev/null @@ -1,159 +0,0 @@ -/* systbls.S: System call entry point tables for OS compatibility. - * The native Linux system call table lives here also. - * - * Copyright (C) 1995, 1996, 2007 David S. Miller (davem@davemloft.net) - * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - * - * Based upon preliminary work which is: - * - * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu) - */ - - - .text - .align 4 - -#ifdef CONFIG_COMPAT - /* First, the 32-bit Linux native syscall table. */ - - .globl sys_call_table32 -sys_call_table32: -/*0*/ .word sys_restart_syscall, sys32_exit, sys_fork, sys_read, sys_write -/*5*/ .word sys32_open, sys_close, sys32_wait4, sys32_creat, sys_link -/*10*/ .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys32_mknod -/*15*/ .word sys_chmod, sys_lchown16, sparc_brk, sys32_perfctr, sys32_lseek -/*20*/ .word sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16 -/*25*/ .word sys32_vmsplice, compat_sys_ptrace, sys_alarm, sys32_sigaltstack, sys_pause -/*30*/ .word compat_sys_utime, sys_lchown, sys_fchown, sys32_access, sys32_nice - .word sys_chown, sys_sync, sys32_kill, compat_sys_newstat, sys32_sendfile -/*40*/ .word compat_sys_newlstat, sys_dup, sys_pipe, compat_sys_times, sys_getuid - .word sys32_umount, sys_setgid16, sys_getgid16, sys32_signal, sys_geteuid16 -/*50*/ .word sys_getegid16, sys_acct, sys_nis_syscall, sys_getgid, compat_sys_ioctl - .word sys32_reboot, sys32_mmap2, sys_symlink, sys32_readlink, sys32_execve -/*60*/ .word sys32_umask, sys_chroot, compat_sys_newfstat, compat_sys_fstat64, sys_getpagesize - .word sys32_msync, sys_vfork, sys32_pread64, sys32_pwrite64, sys_geteuid -/*70*/ .word sys_getegid, sys_mmap, sys_setreuid, sys_munmap, sys_mprotect - .word sys_madvise, sys_vhangup, sys32_truncate64, sys_mincore, sys_getgroups16 -/*80*/ .word sys_setgroups16, sys_getpgrp, sys32_setgroups, sys32_setitimer, sys32_ftruncate64 - .word sys32_swapon, sys32_getitimer, sys_setuid, sys32_sethostname, sys_setgid -/*90*/ .word sys_dup2, sys_setfsuid, compat_sys_fcntl, sys32_select, sys_setfsgid - .word sys_fsync, sys32_setpriority, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall -/*100*/ .word sys32_getpriority, sys32_rt_sigreturn, sys32_rt_sigaction, sys32_rt_sigprocmask, sys32_rt_sigpending - .word compat_sys_rt_sigtimedwait, sys32_rt_sigqueueinfo, compat_sys_rt_sigsuspend, sys_setresuid, sys_getresuid -/*110*/ .word sys_setresgid, sys_getresgid, sys_setregid, sys_nis_syscall, sys_nis_syscall - .word sys32_getgroups, compat_sys_gettimeofday, sys32_getrusage, sys_nis_syscall, sys_getcwd -/*120*/ .word compat_sys_readv, compat_sys_writev, compat_sys_settimeofday, sys_fchown16, sys_fchmod - .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys_truncate -/*130*/ .word sys_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall - .word sys_nis_syscall, sys32_mkdir, sys_rmdir, compat_sys_utimes, compat_sys_stat64 -/*140*/ .word sys32_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit - .word compat_sys_setrlimit, sys_pivot_root, sys32_prctl, sys_pciconfig_read, sys_pciconfig_write -/*150*/ .word sys_nis_syscall, sys_inotify_init, sys_inotify_add_watch, sys_poll, sys_getdents64 - .word compat_sys_fcntl64, sys_inotify_rm_watch, compat_sys_statfs, compat_sys_fstatfs, sys_oldumount -/*160*/ .word compat_sys_sched_setaffinity, compat_sys_sched_getaffinity, sys32_getdomainname, sys32_setdomainname, sys_nis_syscall - .word sys_quotactl, sys_set_tid_address, compat_sys_mount, sys_ustat, sys32_setxattr -/*170*/ .word sys32_lsetxattr, sys32_fsetxattr, sys_getxattr, sys_lgetxattr, compat_sys_getdents - .word sys_setsid, sys_fchdir, sys32_fgetxattr, sys_listxattr, sys_llistxattr -/*180*/ .word sys32_flistxattr, sys_removexattr, sys_lremovexattr, compat_sys_sigpending, sys_ni_syscall - .word sys32_setpgid, sys32_fremovexattr, sys32_tkill, sys32_exit_group, sparc64_newuname -/*190*/ .word sys32_init_module, sparc64_personality, sys_remap_file_pages, sys32_epoll_create, sys32_epoll_ctl - .word sys32_epoll_wait, sys32_ioprio_set, sys_getppid, sys32_sigaction, sys_sgetmask -/*200*/ .word sys32_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir - .word sys32_readahead, sys32_socketcall, sys32_syslog, sys32_lookup_dcookie, sys32_fadvise64 -/*210*/ .word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, compat_sys_sysinfo - .word compat_sys_ipc, sys32_sigreturn, sys_clone, sys32_ioprio_get, compat_sys_adjtimex -/*220*/ .word sys32_sigprocmask, sys_ni_syscall, sys32_delete_module, sys_ni_syscall, sys32_getpgid - .word sys32_bdflush, sys32_sysfs, sys_nis_syscall, sys_setfsuid16, sys_setfsgid16 -/*230*/ .word sys32_select, compat_sys_time, sys32_splice, compat_sys_stime, compat_sys_statfs64 - .word compat_sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys32_mlockall -/*240*/ .word sys_munlockall, sys32_sched_setparam, sys32_sched_getparam, sys32_sched_setscheduler, sys32_sched_getscheduler - .word sys_sched_yield, sys32_sched_get_priority_max, sys32_sched_get_priority_min, sys32_sched_rr_get_interval, compat_sys_nanosleep -/*250*/ .word sys32_mremap, sys32_sysctl, sys32_getsid, sys_fdatasync, sys32_nfsservctl - .word sys32_sync_file_range, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep -/*260*/ .word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun - .word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy -/*270*/ .word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink - .word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid -/*280*/ .word sys32_tee, sys_add_key, sys_request_key, sys_keyctl, compat_sys_openat - .word sys_mkdirat, sys_mknodat, sys_fchownat, compat_sys_futimesat, compat_sys_fstatat64 -/*290*/ .word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat - .word sys_fchmodat, sys_faccessat, compat_sys_pselect6, compat_sys_ppoll, sys_unshare -/*300*/ .word compat_sys_set_robust_list, compat_sys_get_robust_list, compat_sys_migrate_pages, compat_sys_mbind, compat_sys_get_mempolicy - .word compat_sys_set_mempolicy, compat_sys_kexec_load, compat_sys_move_pages, sys_getcpu, compat_sys_epoll_pwait -/*310*/ .word compat_sys_utimensat, compat_sys_signalfd, sys_timerfd_create, sys_eventfd, compat_sys_fallocate - .word compat_sys_timerfd_settime, compat_sys_timerfd_gettime, compat_sys_signalfd4, sys_eventfd2, sys_epoll_create1 -/*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4 - -#endif /* CONFIG_COMPAT */ - - /* Now the 64-bit native Linux syscall table. */ - - .align 4 - .globl sys_call_table64, sys_call_table -sys_call_table64: -sys_call_table: -/*0*/ .word sys_restart_syscall, sparc_exit, sys_fork, sys_read, sys_write -/*5*/ .word sys_open, sys_close, sys_wait4, sys_creat, sys_link -/*10*/ .word sys_unlink, sys_nis_syscall, sys_chdir, sys_chown, sys_mknod -/*15*/ .word sys_chmod, sys_lchown, sparc_brk, sys_perfctr, sys_lseek -/*20*/ .word sys_getpid, sys_capget, sys_capset, sys_setuid, sys_getuid -/*25*/ .word sys_vmsplice, sys_ptrace, sys_alarm, sys_sigaltstack, sys_nis_syscall -/*30*/ .word sys_utime, sys_nis_syscall, sys_nis_syscall, sys_access, sys_nice - .word sys_nis_syscall, sys_sync, sys_kill, sys_newstat, sys_sendfile64 -/*40*/ .word sys_newlstat, sys_dup, sys_pipe, sys_times, sys_nis_syscall - .word sys_umount, sys_setgid, sys_getgid, sys_signal, sys_geteuid -/*50*/ .word sys_getegid, sys_acct, sys_memory_ordering, sys_nis_syscall, sys_ioctl - .word sys_reboot, sys_nis_syscall, sys_symlink, sys_readlink, sys_execve -/*60*/ .word sys_umask, sys_chroot, sys_newfstat, sys_fstat64, sys_getpagesize - .word sys_msync, sys_vfork, sys_pread64, sys_pwrite64, sys_nis_syscall -/*70*/ .word sys_nis_syscall, sys_mmap, sys_nis_syscall, sys64_munmap, sys_mprotect - .word sys_madvise, sys_vhangup, sys_nis_syscall, sys_mincore, sys_getgroups -/*80*/ .word sys_setgroups, sys_getpgrp, sys_nis_syscall, sys_setitimer, sys_nis_syscall - .word sys_swapon, sys_getitimer, sys_nis_syscall, sys_sethostname, sys_nis_syscall -/*90*/ .word sys_dup2, sys_nis_syscall, sys_fcntl, sys_select, sys_nis_syscall - .word sys_fsync, sys_setpriority, sys_socket, sys_connect, sys_accept -/*100*/ .word sys_getpriority, sys_rt_sigreturn, sys_rt_sigaction, sys_rt_sigprocmask, sys_rt_sigpending - .word sys_rt_sigtimedwait, sys_rt_sigqueueinfo, sys_rt_sigsuspend, sys_setresuid, sys_getresuid -/*110*/ .word sys_setresgid, sys_getresgid, sys_nis_syscall, sys_recvmsg, sys_sendmsg - .word sys_nis_syscall, sys_gettimeofday, sys_getrusage, sys_getsockopt, sys_getcwd -/*120*/ .word sys_readv, sys_writev, sys_settimeofday, sys_fchown, sys_fchmod - .word sys_recvfrom, sys_setreuid, sys_setregid, sys_rename, sys_truncate -/*130*/ .word sys_ftruncate, sys_flock, sys_lstat64, sys_sendto, sys_shutdown - .word sys_socketpair, sys_mkdir, sys_rmdir, sys_utimes, sys_stat64 -/*140*/ .word sys_sendfile64, sys_getpeername, sys_futex, sys_gettid, sys_getrlimit - .word sys_setrlimit, sys_pivot_root, sys_prctl, sys_pciconfig_read, sys_pciconfig_write -/*150*/ .word sys_getsockname, sys_inotify_init, sys_inotify_add_watch, sys_poll, sys_getdents64 - .word sys_nis_syscall, sys_inotify_rm_watch, sys_statfs, sys_fstatfs, sys_oldumount -/*160*/ .word sys_sched_setaffinity, sys_sched_getaffinity, sys_getdomainname, sys_setdomainname, sys_utrap_install - .word sys_quotactl, sys_set_tid_address, sys_mount, sys_ustat, sys_setxattr -/*170*/ .word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents - .word sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr -/*180*/ .word sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_nis_syscall, sys_ni_syscall - .word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sparc64_newuname -/*190*/ .word sys_init_module, sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl - .word sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_nis_syscall, sys_sgetmask -/*200*/ .word sys_ssetmask, sys_nis_syscall, sys_newlstat, sys_uselib, sys_nis_syscall - .word sys_readahead, sys_socketcall, sys_syslog, sys_lookup_dcookie, sys_fadvise64 -/*210*/ .word sys_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, sys_sysinfo - .word sys_ipc, sys_nis_syscall, sys_clone, sys_ioprio_get, sys_adjtimex -/*220*/ .word sys_nis_syscall, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid - .word sys_bdflush, sys_sysfs, sys_nis_syscall, sys_setfsuid, sys_setfsgid -/*230*/ .word sys_select, sys_nis_syscall, sys_splice, sys_stime, sys_statfs64 - .word sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys_mlockall -/*240*/ .word sys_munlockall, sys_sched_setparam, sys_sched_getparam, sys_sched_setscheduler, sys_sched_getscheduler - .word sys_sched_yield, sys_sched_get_priority_max, sys_sched_get_priority_min, sys_sched_rr_get_interval, sys_nanosleep -/*250*/ .word sys64_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl - .word sys_sync_file_range, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep -/*260*/ .word sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun - .word sys_timer_delete, sys_timer_create, sys_ni_syscall, sys_io_setup, sys_io_destroy -/*270*/ .word sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink - .word sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid -/*280*/ .word sys_tee, sys_add_key, sys_request_key, sys_keyctl, sys_openat - .word sys_mkdirat, sys_mknodat, sys_fchownat, sys_futimesat, sys_fstatat64 -/*290*/ .word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat - .word sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll, sys_unshare -/*300*/ .word sys_set_robust_list, sys_get_robust_list, sys_migrate_pages, sys_mbind, sys_get_mempolicy - .word sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait -/*310*/ .word sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate - .word sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1 -/*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4 diff --git a/arch/sparc64/kernel/systbls.h b/arch/sparc64/kernel/systbls.h deleted file mode 100644 index bc9f5dac4069..000000000000 --- a/arch/sparc64/kernel/systbls.h +++ /dev/null @@ -1,51 +0,0 @@ -#ifndef _SYSTBLS_H -#define _SYSTBLS_H - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/utsname.h> -#include <asm/utrap.h> -#include <asm/signal.h> - -extern asmlinkage unsigned long sys_getpagesize(void); -extern asmlinkage unsigned long sparc_brk(unsigned long brk); -extern asmlinkage long sparc_pipe(struct pt_regs *regs); -extern asmlinkage long sys_ipc(unsigned int call, int first, - unsigned long second, - unsigned long third, - void __user *ptr, long fifth); -extern asmlinkage long sparc64_newuname(struct new_utsname __user *name); -extern asmlinkage long sparc64_personality(unsigned long personality); -extern asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long off); -extern asmlinkage long sys64_munmap(unsigned long addr, size_t len); -extern asmlinkage unsigned long sys64_mremap(unsigned long addr, - unsigned long old_len, - unsigned long new_len, - unsigned long flags, - unsigned long new_addr); -extern asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs); -extern asmlinkage long sys_getdomainname(char __user *name, int len); -extern asmlinkage long sys_utrap_install(utrap_entry_t type, - utrap_handler_t new_p, - utrap_handler_t new_d, - utrap_handler_t __user *old_p, - utrap_handler_t __user *old_d); -extern asmlinkage long sparc_memory_ordering(unsigned long model, - struct pt_regs *regs); -extern asmlinkage long sys_rt_sigaction(int sig, - const struct sigaction __user *act, - struct sigaction __user *oact, - void __user *restorer, - size_t sigsetsize); -extern asmlinkage long sys_perfctr(int opcode, unsigned long arg0, - unsigned long arg1, unsigned long arg2); - -extern asmlinkage void sparc64_set_context(struct pt_regs *regs); -extern asmlinkage void sparc64_get_context(struct pt_regs *regs); -extern asmlinkage long sys_sigpause(unsigned int set); -extern asmlinkage long sys_sigsuspend(old_sigset_t set); -extern void do_rt_sigreturn(struct pt_regs *regs); - -#endif /* _SYSTBLS_H */ diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c deleted file mode 100644 index 141da3759091..000000000000 --- a/arch/sparc64/kernel/time.c +++ /dev/null @@ -1,862 +0,0 @@ -/* time.c: UltraSparc timer and TOD clock support. - * - * Copyright (C) 1997, 2008 David S. Miller (davem@davemloft.net) - * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) - * - * Based largely on code which is: - * - * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu) - */ - -#include <linux/errno.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/smp_lock.h> -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/time.h> -#include <linux/timex.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/mc146818rtc.h> -#include <linux/delay.h> -#include <linux/profile.h> -#include <linux/bcd.h> -#include <linux/jiffies.h> -#include <linux/cpufreq.h> -#include <linux/percpu.h> -#include <linux/miscdevice.h> -#include <linux/rtc.h> -#include <linux/rtc/m48t59.h> -#include <linux/kernel_stat.h> -#include <linux/clockchips.h> -#include <linux/clocksource.h> -#include <linux/of_device.h> -#include <linux/platform_device.h> - -#include <asm/oplib.h> -#include <asm/timer.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/prom.h> -#include <asm/starfire.h> -#include <asm/smp.h> -#include <asm/sections.h> -#include <asm/cpudata.h> -#include <asm/uaccess.h> -#include <asm/irq_regs.h> - -#include "entry.h" - -DEFINE_SPINLOCK(rtc_lock); - -#define TICK_PRIV_BIT (1UL << 63) -#define TICKCMP_IRQ_BIT (1UL << 63) - -#ifdef CONFIG_SMP -unsigned long profile_pc(struct pt_regs *regs) -{ - unsigned long pc = instruction_pointer(regs); - - if (in_lock_functions(pc)) - return regs->u_regs[UREG_RETPC]; - return pc; -} -EXPORT_SYMBOL(profile_pc); -#endif - -static void tick_disable_protection(void) -{ - /* Set things up so user can access tick register for profiling - * purposes. Also workaround BB_ERRATA_1 by doing a dummy - * read back of %tick after writing it. - */ - __asm__ __volatile__( - " ba,pt %%xcc, 1f\n" - " nop\n" - " .align 64\n" - "1: rd %%tick, %%g2\n" - " add %%g2, 6, %%g2\n" - " andn %%g2, %0, %%g2\n" - " wrpr %%g2, 0, %%tick\n" - " rdpr %%tick, %%g0" - : /* no outputs */ - : "r" (TICK_PRIV_BIT) - : "g2"); -} - -static void tick_disable_irq(void) -{ - __asm__ __volatile__( - " ba,pt %%xcc, 1f\n" - " nop\n" - " .align 64\n" - "1: wr %0, 0x0, %%tick_cmpr\n" - " rd %%tick_cmpr, %%g0" - : /* no outputs */ - : "r" (TICKCMP_IRQ_BIT)); -} - -static void tick_init_tick(void) -{ - tick_disable_protection(); - tick_disable_irq(); -} - -static unsigned long tick_get_tick(void) -{ - unsigned long ret; - - __asm__ __volatile__("rd %%tick, %0\n\t" - "mov %0, %0" - : "=r" (ret)); - - return ret & ~TICK_PRIV_BIT; -} - -static int tick_add_compare(unsigned long adj) -{ - unsigned long orig_tick, new_tick, new_compare; - - __asm__ __volatile__("rd %%tick, %0" - : "=r" (orig_tick)); - - orig_tick &= ~TICKCMP_IRQ_BIT; - - /* Workaround for Spitfire Errata (#54 I think??), I discovered - * this via Sun BugID 4008234, mentioned in Solaris-2.5.1 patch - * number 103640. - * - * On Blackbird writes to %tick_cmpr can fail, the - * workaround seems to be to execute the wr instruction - * at the start of an I-cache line, and perform a dummy - * read back from %tick_cmpr right after writing to it. -DaveM - */ - __asm__ __volatile__("ba,pt %%xcc, 1f\n\t" - " add %1, %2, %0\n\t" - ".align 64\n" - "1:\n\t" - "wr %0, 0, %%tick_cmpr\n\t" - "rd %%tick_cmpr, %%g0\n\t" - : "=r" (new_compare) - : "r" (orig_tick), "r" (adj)); - - __asm__ __volatile__("rd %%tick, %0" - : "=r" (new_tick)); - new_tick &= ~TICKCMP_IRQ_BIT; - - return ((long)(new_tick - (orig_tick+adj))) > 0L; -} - -static unsigned long tick_add_tick(unsigned long adj) -{ - unsigned long new_tick; - - /* Also need to handle Blackbird bug here too. */ - __asm__ __volatile__("rd %%tick, %0\n\t" - "add %0, %1, %0\n\t" - "wrpr %0, 0, %%tick\n\t" - : "=&r" (new_tick) - : "r" (adj)); - - return new_tick; -} - -static struct sparc64_tick_ops tick_operations __read_mostly = { - .name = "tick", - .init_tick = tick_init_tick, - .disable_irq = tick_disable_irq, - .get_tick = tick_get_tick, - .add_tick = tick_add_tick, - .add_compare = tick_add_compare, - .softint_mask = 1UL << 0, -}; - -struct sparc64_tick_ops *tick_ops __read_mostly = &tick_operations; - -static void stick_disable_irq(void) -{ - __asm__ __volatile__( - "wr %0, 0x0, %%asr25" - : /* no outputs */ - : "r" (TICKCMP_IRQ_BIT)); -} - -static void stick_init_tick(void) -{ - /* Writes to the %tick and %stick register are not - * allowed on sun4v. The Hypervisor controls that - * bit, per-strand. - */ - if (tlb_type != hypervisor) { - tick_disable_protection(); - tick_disable_irq(); - - /* Let the user get at STICK too. */ - __asm__ __volatile__( - " rd %%asr24, %%g2\n" - " andn %%g2, %0, %%g2\n" - " wr %%g2, 0, %%asr24" - : /* no outputs */ - : "r" (TICK_PRIV_BIT) - : "g1", "g2"); - } - - stick_disable_irq(); -} - -static unsigned long stick_get_tick(void) -{ - unsigned long ret; - - __asm__ __volatile__("rd %%asr24, %0" - : "=r" (ret)); - - return ret & ~TICK_PRIV_BIT; -} - -static unsigned long stick_add_tick(unsigned long adj) -{ - unsigned long new_tick; - - __asm__ __volatile__("rd %%asr24, %0\n\t" - "add %0, %1, %0\n\t" - "wr %0, 0, %%asr24\n\t" - : "=&r" (new_tick) - : "r" (adj)); - - return new_tick; -} - -static int stick_add_compare(unsigned long adj) -{ - unsigned long orig_tick, new_tick; - - __asm__ __volatile__("rd %%asr24, %0" - : "=r" (orig_tick)); - orig_tick &= ~TICKCMP_IRQ_BIT; - - __asm__ __volatile__("wr %0, 0, %%asr25" - : /* no outputs */ - : "r" (orig_tick + adj)); - - __asm__ __volatile__("rd %%asr24, %0" - : "=r" (new_tick)); - new_tick &= ~TICKCMP_IRQ_BIT; - - return ((long)(new_tick - (orig_tick+adj))) > 0L; -} - -static struct sparc64_tick_ops stick_operations __read_mostly = { - .name = "stick", - .init_tick = stick_init_tick, - .disable_irq = stick_disable_irq, - .get_tick = stick_get_tick, - .add_tick = stick_add_tick, - .add_compare = stick_add_compare, - .softint_mask = 1UL << 16, -}; - -/* On Hummingbird the STICK/STICK_CMPR register is implemented - * in I/O space. There are two 64-bit registers each, the - * first holds the low 32-bits of the value and the second holds - * the high 32-bits. - * - * Since STICK is constantly updating, we have to access it carefully. - * - * The sequence we use to read is: - * 1) read high - * 2) read low - * 3) read high again, if it rolled re-read both low and high again. - * - * Writing STICK safely is also tricky: - * 1) write low to zero - * 2) write high - * 3) write low - */ -#define HBIRD_STICKCMP_ADDR 0x1fe0000f060UL -#define HBIRD_STICK_ADDR 0x1fe0000f070UL - -static unsigned long __hbird_read_stick(void) -{ - unsigned long ret, tmp1, tmp2, tmp3; - unsigned long addr = HBIRD_STICK_ADDR+8; - - __asm__ __volatile__("ldxa [%1] %5, %2\n" - "1:\n\t" - "sub %1, 0x8, %1\n\t" - "ldxa [%1] %5, %3\n\t" - "add %1, 0x8, %1\n\t" - "ldxa [%1] %5, %4\n\t" - "cmp %4, %2\n\t" - "bne,a,pn %%xcc, 1b\n\t" - " mov %4, %2\n\t" - "sllx %4, 32, %4\n\t" - "or %3, %4, %0\n\t" - : "=&r" (ret), "=&r" (addr), - "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3) - : "i" (ASI_PHYS_BYPASS_EC_E), "1" (addr)); - - return ret; -} - -static void __hbird_write_stick(unsigned long val) -{ - unsigned long low = (val & 0xffffffffUL); - unsigned long high = (val >> 32UL); - unsigned long addr = HBIRD_STICK_ADDR; - - __asm__ __volatile__("stxa %%g0, [%0] %4\n\t" - "add %0, 0x8, %0\n\t" - "stxa %3, [%0] %4\n\t" - "sub %0, 0x8, %0\n\t" - "stxa %2, [%0] %4" - : "=&r" (addr) - : "0" (addr), "r" (low), "r" (high), - "i" (ASI_PHYS_BYPASS_EC_E)); -} - -static void __hbird_write_compare(unsigned long val) -{ - unsigned long low = (val & 0xffffffffUL); - unsigned long high = (val >> 32UL); - unsigned long addr = HBIRD_STICKCMP_ADDR + 0x8UL; - - __asm__ __volatile__("stxa %3, [%0] %4\n\t" - "sub %0, 0x8, %0\n\t" - "stxa %2, [%0] %4" - : "=&r" (addr) - : "0" (addr), "r" (low), "r" (high), - "i" (ASI_PHYS_BYPASS_EC_E)); -} - -static void hbtick_disable_irq(void) -{ - __hbird_write_compare(TICKCMP_IRQ_BIT); -} - -static void hbtick_init_tick(void) -{ - tick_disable_protection(); - - /* XXX This seems to be necessary to 'jumpstart' Hummingbird - * XXX into actually sending STICK interrupts. I think because - * XXX of how we store %tick_cmpr in head.S this somehow resets the - * XXX {TICK + STICK} interrupt mux. -DaveM - */ - __hbird_write_stick(__hbird_read_stick()); - - hbtick_disable_irq(); -} - -static unsigned long hbtick_get_tick(void) -{ - return __hbird_read_stick() & ~TICK_PRIV_BIT; -} - -static unsigned long hbtick_add_tick(unsigned long adj) -{ - unsigned long val; - - val = __hbird_read_stick() + adj; - __hbird_write_stick(val); - - return val; -} - -static int hbtick_add_compare(unsigned long adj) -{ - unsigned long val = __hbird_read_stick(); - unsigned long val2; - - val &= ~TICKCMP_IRQ_BIT; - val += adj; - __hbird_write_compare(val); - - val2 = __hbird_read_stick() & ~TICKCMP_IRQ_BIT; - - return ((long)(val2 - val)) > 0L; -} - -static struct sparc64_tick_ops hbtick_operations __read_mostly = { - .name = "hbtick", - .init_tick = hbtick_init_tick, - .disable_irq = hbtick_disable_irq, - .get_tick = hbtick_get_tick, - .add_tick = hbtick_add_tick, - .add_compare = hbtick_add_compare, - .softint_mask = 1UL << 0, -}; - -static unsigned long timer_ticks_per_nsec_quotient __read_mostly; - -int update_persistent_clock(struct timespec now) -{ - struct rtc_device *rtc = rtc_class_open("rtc0"); - int err = -1; - - if (rtc) { - err = rtc_set_mmss(rtc, now.tv_sec); - rtc_class_close(rtc); - } - - return err; -} - -unsigned long cmos_regs; -EXPORT_SYMBOL(cmos_regs); - -static struct resource rtc_cmos_resource; - -static struct platform_device rtc_cmos_device = { - .name = "rtc_cmos", - .id = -1, - .resource = &rtc_cmos_resource, - .num_resources = 1, -}; - -static int __devinit rtc_probe(struct of_device *op, const struct of_device_id *match) -{ - struct resource *r; - - printk(KERN_INFO "%s: RTC regs at 0x%lx\n", - op->node->full_name, op->resource[0].start); - - /* The CMOS RTC driver only accepts IORESOURCE_IO, so cons - * up a fake resource so that the probe works for all cases. - * When the RTC is behind an ISA bus it will have IORESOURCE_IO - * already, whereas when it's behind EBUS is will be IORESOURCE_MEM. - */ - - r = &rtc_cmos_resource; - r->flags = IORESOURCE_IO; - r->name = op->resource[0].name; - r->start = op->resource[0].start; - r->end = op->resource[0].end; - - cmos_regs = op->resource[0].start; - return platform_device_register(&rtc_cmos_device); -} - -static struct of_device_id __initdata rtc_match[] = { - { - .name = "rtc", - .compatible = "m5819", - }, - { - .name = "rtc", - .compatible = "isa-m5819p", - }, - { - .name = "rtc", - .compatible = "isa-m5823p", - }, - { - .name = "rtc", - .compatible = "ds1287", - }, - {}, -}; - -static struct of_platform_driver rtc_driver = { - .match_table = rtc_match, - .probe = rtc_probe, - .driver = { - .name = "rtc", - }, -}; - -static struct platform_device rtc_bq4802_device = { - .name = "rtc-bq4802", - .id = -1, - .num_resources = 1, -}; - -static int __devinit bq4802_probe(struct of_device *op, const struct of_device_id *match) -{ - - printk(KERN_INFO "%s: BQ4802 regs at 0x%lx\n", - op->node->full_name, op->resource[0].start); - - rtc_bq4802_device.resource = &op->resource[0]; - return platform_device_register(&rtc_bq4802_device); -} - -static struct of_device_id __initdata bq4802_match[] = { - { - .name = "rtc", - .compatible = "bq4802", - }, - {}, -}; - -static struct of_platform_driver bq4802_driver = { - .match_table = bq4802_match, - .probe = bq4802_probe, - .driver = { - .name = "bq4802", - }, -}; - -static unsigned char mostek_read_byte(struct device *dev, u32 ofs) -{ - struct platform_device *pdev = to_platform_device(dev); - void __iomem *regs = (void __iomem *) pdev->resource[0].start; - - return readb(regs + ofs); -} - -static void mostek_write_byte(struct device *dev, u32 ofs, u8 val) -{ - struct platform_device *pdev = to_platform_device(dev); - void __iomem *regs = (void __iomem *) pdev->resource[0].start; - - writeb(val, regs + ofs); -} - -static struct m48t59_plat_data m48t59_data = { - .read_byte = mostek_read_byte, - .write_byte = mostek_write_byte, -}; - -static struct platform_device m48t59_rtc = { - .name = "rtc-m48t59", - .id = 0, - .num_resources = 1, - .dev = { - .platform_data = &m48t59_data, - }, -}; - -static int __devinit mostek_probe(struct of_device *op, const struct of_device_id *match) -{ - struct device_node *dp = op->node; - - /* On an Enterprise system there can be multiple mostek clocks. - * We should only match the one that is on the central FHC bus. - */ - if (!strcmp(dp->parent->name, "fhc") && - strcmp(dp->parent->parent->name, "central") != 0) - return -ENODEV; - - printk(KERN_INFO "%s: Mostek regs at 0x%lx\n", - dp->full_name, op->resource[0].start); - - m48t59_rtc.resource = &op->resource[0]; - return platform_device_register(&m48t59_rtc); -} - -static struct of_device_id __initdata mostek_match[] = { - { - .name = "eeprom", - }, - {}, -}; - -static struct of_platform_driver mostek_driver = { - .match_table = mostek_match, - .probe = mostek_probe, - .driver = { - .name = "mostek", - }, -}; - -static struct platform_device rtc_sun4v_device = { - .name = "rtc-sun4v", - .id = -1, -}; - -static struct platform_device rtc_starfire_device = { - .name = "rtc-starfire", - .id = -1, -}; - -static int __init clock_init(void) -{ - if (this_is_starfire) - return platform_device_register(&rtc_starfire_device); - - if (tlb_type == hypervisor) - return platform_device_register(&rtc_sun4v_device); - - (void) of_register_driver(&rtc_driver, &of_platform_bus_type); - (void) of_register_driver(&mostek_driver, &of_platform_bus_type); - (void) of_register_driver(&bq4802_driver, &of_platform_bus_type); - - return 0; -} - -/* Must be after subsys_initcall() so that busses are probed. Must - * be before device_initcall() because things like the RTC driver - * need to see the clock registers. - */ -fs_initcall(clock_init); - -/* This is gets the master TICK_INT timer going. */ -static unsigned long sparc64_init_timers(void) -{ - struct device_node *dp; - unsigned long freq; - - dp = of_find_node_by_path("/"); - if (tlb_type == spitfire) { - unsigned long ver, manuf, impl; - - __asm__ __volatile__ ("rdpr %%ver, %0" - : "=&r" (ver)); - manuf = ((ver >> 48) & 0xffff); - impl = ((ver >> 32) & 0xffff); - if (manuf == 0x17 && impl == 0x13) { - /* Hummingbird, aka Ultra-IIe */ - tick_ops = &hbtick_operations; - freq = of_getintprop_default(dp, "stick-frequency", 0); - } else { - tick_ops = &tick_operations; - freq = local_cpu_data().clock_tick; - } - } else { - tick_ops = &stick_operations; - freq = of_getintprop_default(dp, "stick-frequency", 0); - } - - return freq; -} - -struct freq_table { - unsigned long clock_tick_ref; - unsigned int ref_freq; -}; -static DEFINE_PER_CPU(struct freq_table, sparc64_freq_table) = { 0, 0 }; - -unsigned long sparc64_get_clock_tick(unsigned int cpu) -{ - struct freq_table *ft = &per_cpu(sparc64_freq_table, cpu); - - if (ft->clock_tick_ref) - return ft->clock_tick_ref; - return cpu_data(cpu).clock_tick; -} - -#ifdef CONFIG_CPU_FREQ - -static int sparc64_cpufreq_notifier(struct notifier_block *nb, unsigned long val, - void *data) -{ - struct cpufreq_freqs *freq = data; - unsigned int cpu = freq->cpu; - struct freq_table *ft = &per_cpu(sparc64_freq_table, cpu); - - if (!ft->ref_freq) { - ft->ref_freq = freq->old; - ft->clock_tick_ref = cpu_data(cpu).clock_tick; - } - if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) || - (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) || - (val == CPUFREQ_RESUMECHANGE)) { - cpu_data(cpu).clock_tick = - cpufreq_scale(ft->clock_tick_ref, - ft->ref_freq, - freq->new); - } - - return 0; -} - -static struct notifier_block sparc64_cpufreq_notifier_block = { - .notifier_call = sparc64_cpufreq_notifier -}; - -static int __init register_sparc64_cpufreq_notifier(void) -{ - - cpufreq_register_notifier(&sparc64_cpufreq_notifier_block, - CPUFREQ_TRANSITION_NOTIFIER); - return 0; -} - -core_initcall(register_sparc64_cpufreq_notifier); - -#endif /* CONFIG_CPU_FREQ */ - -static int sparc64_next_event(unsigned long delta, - struct clock_event_device *evt) -{ - return tick_ops->add_compare(delta) ? -ETIME : 0; -} - -static void sparc64_timer_setup(enum clock_event_mode mode, - struct clock_event_device *evt) -{ - switch (mode) { - case CLOCK_EVT_MODE_ONESHOT: - case CLOCK_EVT_MODE_RESUME: - break; - - case CLOCK_EVT_MODE_SHUTDOWN: - tick_ops->disable_irq(); - break; - - case CLOCK_EVT_MODE_PERIODIC: - case CLOCK_EVT_MODE_UNUSED: - WARN_ON(1); - break; - }; -} - -static struct clock_event_device sparc64_clockevent = { - .features = CLOCK_EVT_FEAT_ONESHOT, - .set_mode = sparc64_timer_setup, - .set_next_event = sparc64_next_event, - .rating = 100, - .shift = 30, - .irq = -1, -}; -static DEFINE_PER_CPU(struct clock_event_device, sparc64_events); - -void timer_interrupt(int irq, struct pt_regs *regs) -{ - struct pt_regs *old_regs = set_irq_regs(regs); - unsigned long tick_mask = tick_ops->softint_mask; - int cpu = smp_processor_id(); - struct clock_event_device *evt = &per_cpu(sparc64_events, cpu); - - clear_softint(tick_mask); - - irq_enter(); - - kstat_this_cpu.irqs[0]++; - - if (unlikely(!evt->event_handler)) { - printk(KERN_WARNING - "Spurious SPARC64 timer interrupt on cpu %d\n", cpu); - } else - evt->event_handler(evt); - - irq_exit(); - - set_irq_regs(old_regs); -} - -void __devinit setup_sparc64_timer(void) -{ - struct clock_event_device *sevt; - unsigned long pstate; - - /* Guarantee that the following sequences execute - * uninterrupted. - */ - __asm__ __volatile__("rdpr %%pstate, %0\n\t" - "wrpr %0, %1, %%pstate" - : "=r" (pstate) - : "i" (PSTATE_IE)); - - tick_ops->init_tick(); - - /* Restore PSTATE_IE. */ - __asm__ __volatile__("wrpr %0, 0x0, %%pstate" - : /* no outputs */ - : "r" (pstate)); - - sevt = &__get_cpu_var(sparc64_events); - - memcpy(sevt, &sparc64_clockevent, sizeof(*sevt)); - sevt->cpumask = cpumask_of_cpu(smp_processor_id()); - - clockevents_register_device(sevt); -} - -#define SPARC64_NSEC_PER_CYC_SHIFT 10UL - -static struct clocksource clocksource_tick = { - .rating = 100, - .mask = CLOCKSOURCE_MASK(64), - .shift = 16, - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -static void __init setup_clockevent_multiplier(unsigned long hz) -{ - unsigned long mult, shift = 32; - - while (1) { - mult = div_sc(hz, NSEC_PER_SEC, shift); - if (mult && (mult >> 32UL) == 0UL) - break; - - shift--; - } - - sparc64_clockevent.shift = shift; - sparc64_clockevent.mult = mult; -} - -static unsigned long tb_ticks_per_usec __read_mostly; - -void __delay(unsigned long loops) -{ - unsigned long bclock, now; - - bclock = tick_ops->get_tick(); - do { - now = tick_ops->get_tick(); - } while ((now-bclock) < loops); -} -EXPORT_SYMBOL(__delay); - -void udelay(unsigned long usecs) -{ - __delay(tb_ticks_per_usec * usecs); -} -EXPORT_SYMBOL(udelay); - -void __init time_init(void) -{ - unsigned long freq = sparc64_init_timers(); - - tb_ticks_per_usec = freq / USEC_PER_SEC; - - timer_ticks_per_nsec_quotient = - clocksource_hz2mult(freq, SPARC64_NSEC_PER_CYC_SHIFT); - - clocksource_tick.name = tick_ops->name; - clocksource_tick.mult = - clocksource_hz2mult(freq, - clocksource_tick.shift); - clocksource_tick.read = tick_ops->get_tick; - - printk("clocksource: mult[%x] shift[%d]\n", - clocksource_tick.mult, clocksource_tick.shift); - - clocksource_register(&clocksource_tick); - - sparc64_clockevent.name = tick_ops->name; - - setup_clockevent_multiplier(freq); - - sparc64_clockevent.max_delta_ns = - clockevent_delta2ns(0x7fffffffffffffffUL, &sparc64_clockevent); - sparc64_clockevent.min_delta_ns = - clockevent_delta2ns(0xF, &sparc64_clockevent); - - printk("clockevent: mult[%lx] shift[%d]\n", - sparc64_clockevent.mult, sparc64_clockevent.shift); - - setup_sparc64_timer(); -} - -unsigned long long sched_clock(void) -{ - unsigned long ticks = tick_ops->get_tick(); - - return (ticks * timer_ticks_per_nsec_quotient) - >> SPARC64_NSEC_PER_CYC_SHIFT; -} - -int __devinit read_current_timer(unsigned long *timer_val) -{ - *timer_val = tick_ops->get_tick(); - return 0; -} diff --git a/arch/sparc64/kernel/trampoline.S b/arch/sparc64/kernel/trampoline.S deleted file mode 100644 index 83abd5ae88a4..000000000000 --- a/arch/sparc64/kernel/trampoline.S +++ /dev/null @@ -1,421 +0,0 @@ -/* - * trampoline.S: Jump start slave processors on sparc64. - * - * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) - */ - -#include <linux/init.h> - -#include <asm/head.h> -#include <asm/asi.h> -#include <asm/lsu.h> -#include <asm/dcr.h> -#include <asm/dcu.h> -#include <asm/pstate.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/spitfire.h> -#include <asm/processor.h> -#include <asm/thread_info.h> -#include <asm/mmu.h> -#include <asm/hypervisor.h> -#include <asm/cpudata.h> - - .data - .align 8 -call_method: - .asciz "call-method" - .align 8 -itlb_load: - .asciz "SUNW,itlb-load" - .align 8 -dtlb_load: - .asciz "SUNW,dtlb-load" - - /* XXX __cpuinit this thing XXX */ -#define TRAMP_STACK_SIZE 1024 - .align 16 -tramp_stack: - .skip TRAMP_STACK_SIZE - - __CPUINIT - .align 8 - .globl sparc64_cpu_startup, sparc64_cpu_startup_end -sparc64_cpu_startup: - BRANCH_IF_SUN4V(g1, niagara_startup) - BRANCH_IF_CHEETAH_BASE(g1, g5, cheetah_startup) - BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1, g5, cheetah_plus_startup) - - ba,pt %xcc, spitfire_startup - nop - -cheetah_plus_startup: - /* Preserve OBP chosen DCU and DCR register settings. */ - ba,pt %xcc, cheetah_generic_startup - nop - -cheetah_startup: - mov DCR_BPE | DCR_RPE | DCR_SI | DCR_IFPOE | DCR_MS, %g1 - wr %g1, %asr18 - - sethi %uhi(DCU_ME|DCU_RE|DCU_HPE|DCU_SPE|DCU_SL|DCU_WE), %g5 - or %g5, %ulo(DCU_ME|DCU_RE|DCU_HPE|DCU_SPE|DCU_SL|DCU_WE), %g5 - sllx %g5, 32, %g5 - or %g5, DCU_DM | DCU_IM | DCU_DC | DCU_IC, %g5 - stxa %g5, [%g0] ASI_DCU_CONTROL_REG - membar #Sync - /* fallthru */ - -cheetah_generic_startup: - mov TSB_EXTENSION_P, %g3 - stxa %g0, [%g3] ASI_DMMU - stxa %g0, [%g3] ASI_IMMU - membar #Sync - - mov TSB_EXTENSION_S, %g3 - stxa %g0, [%g3] ASI_DMMU - membar #Sync - - mov TSB_EXTENSION_N, %g3 - stxa %g0, [%g3] ASI_DMMU - stxa %g0, [%g3] ASI_IMMU - membar #Sync - /* fallthru */ - -niagara_startup: - /* Disable STICK_INT interrupts. */ - sethi %hi(0x80000000), %g5 - sllx %g5, 32, %g5 - wr %g5, %asr25 - - ba,pt %xcc, startup_continue - nop - -spitfire_startup: - mov (LSU_CONTROL_IC | LSU_CONTROL_DC | LSU_CONTROL_IM | LSU_CONTROL_DM), %g1 - stxa %g1, [%g0] ASI_LSU_CONTROL - membar #Sync - -startup_continue: - mov %o0, %l0 - BRANCH_IF_SUN4V(g1, niagara_lock_tlb) - - sethi %hi(0x80000000), %g2 - sllx %g2, 32, %g2 - wr %g2, 0, %tick_cmpr - - /* Call OBP by hand to lock KERNBASE into i/d tlbs. - * We lock 'num_kernel_image_mappings' consequetive entries. - */ - sethi %hi(prom_entry_lock), %g2 -1: ldstub [%g2 + %lo(prom_entry_lock)], %g1 - membar #StoreLoad | #StoreStore - brnz,pn %g1, 1b - nop - - sethi %hi(p1275buf), %g2 - or %g2, %lo(p1275buf), %g2 - ldx [%g2 + 0x10], %l2 - add %l2, -(192 + 128), %sp - flushw - - /* Setup the loop variables: - * %l3: VADDR base - * %l4: TTE base - * %l5: Loop iterator, iterates from 0 to 'num_kernel_image_mappings' - * %l6: Number of TTE entries to map - * %l7: Highest TTE entry number, we count down - */ - sethi %hi(KERNBASE), %l3 - sethi %hi(kern_locked_tte_data), %l4 - ldx [%l4 + %lo(kern_locked_tte_data)], %l4 - clr %l5 - sethi %hi(num_kernel_image_mappings), %l6 - lduw [%l6 + %lo(num_kernel_image_mappings)], %l6 - add %l6, 1, %l6 - - mov 15, %l7 - BRANCH_IF_ANY_CHEETAH(g1,g5,2f) - - mov 63, %l7 -2: - -3: - /* Lock into I-MMU */ - sethi %hi(call_method), %g2 - or %g2, %lo(call_method), %g2 - stx %g2, [%sp + 2047 + 128 + 0x00] - mov 5, %g2 - stx %g2, [%sp + 2047 + 128 + 0x08] - mov 1, %g2 - stx %g2, [%sp + 2047 + 128 + 0x10] - sethi %hi(itlb_load), %g2 - or %g2, %lo(itlb_load), %g2 - stx %g2, [%sp + 2047 + 128 + 0x18] - sethi %hi(prom_mmu_ihandle_cache), %g2 - lduw [%g2 + %lo(prom_mmu_ihandle_cache)], %g2 - stx %g2, [%sp + 2047 + 128 + 0x20] - - /* Each TTE maps 4MB, convert index to offset. */ - sllx %l5, 22, %g1 - - add %l3, %g1, %g2 - stx %g2, [%sp + 2047 + 128 + 0x28] ! VADDR - add %l4, %g1, %g2 - stx %g2, [%sp + 2047 + 128 + 0x30] ! TTE - - /* TTE index is highest minus loop index. */ - sub %l7, %l5, %g2 - stx %g2, [%sp + 2047 + 128 + 0x38] - - sethi %hi(p1275buf), %g2 - or %g2, %lo(p1275buf), %g2 - ldx [%g2 + 0x08], %o1 - call %o1 - add %sp, (2047 + 128), %o0 - - /* Lock into D-MMU */ - sethi %hi(call_method), %g2 - or %g2, %lo(call_method), %g2 - stx %g2, [%sp + 2047 + 128 + 0x00] - mov 5, %g2 - stx %g2, [%sp + 2047 + 128 + 0x08] - mov 1, %g2 - stx %g2, [%sp + 2047 + 128 + 0x10] - sethi %hi(dtlb_load), %g2 - or %g2, %lo(dtlb_load), %g2 - stx %g2, [%sp + 2047 + 128 + 0x18] - sethi %hi(prom_mmu_ihandle_cache), %g2 - lduw [%g2 + %lo(prom_mmu_ihandle_cache)], %g2 - stx %g2, [%sp + 2047 + 128 + 0x20] - - /* Each TTE maps 4MB, convert index to offset. */ - sllx %l5, 22, %g1 - - add %l3, %g1, %g2 - stx %g2, [%sp + 2047 + 128 + 0x28] ! VADDR - add %l4, %g1, %g2 - stx %g2, [%sp + 2047 + 128 + 0x30] ! TTE - - /* TTE index is highest minus loop index. */ - sub %l7, %l5, %g2 - stx %g2, [%sp + 2047 + 128 + 0x38] - - sethi %hi(p1275buf), %g2 - or %g2, %lo(p1275buf), %g2 - ldx [%g2 + 0x08], %o1 - call %o1 - add %sp, (2047 + 128), %o0 - - add %l5, 1, %l5 - cmp %l5, %l6 - bne,pt %xcc, 3b - nop - - sethi %hi(prom_entry_lock), %g2 - stb %g0, [%g2 + %lo(prom_entry_lock)] - membar #StoreStore | #StoreLoad - - ba,pt %xcc, after_lock_tlb - nop - -niagara_lock_tlb: - sethi %hi(KERNBASE), %l3 - sethi %hi(kern_locked_tte_data), %l4 - ldx [%l4 + %lo(kern_locked_tte_data)], %l4 - clr %l5 - sethi %hi(num_kernel_image_mappings), %l6 - lduw [%l6 + %lo(num_kernel_image_mappings)], %l6 - add %l6, 1, %l6 - -1: - mov HV_FAST_MMU_MAP_PERM_ADDR, %o5 - sllx %l5, 22, %g2 - add %l3, %g2, %o0 - clr %o1 - add %l4, %g2, %o2 - mov HV_MMU_IMMU, %o3 - ta HV_FAST_TRAP - - mov HV_FAST_MMU_MAP_PERM_ADDR, %o5 - sllx %l5, 22, %g2 - add %l3, %g2, %o0 - clr %o1 - add %l4, %g2, %o2 - mov HV_MMU_DMMU, %o3 - ta HV_FAST_TRAP - - add %l5, 1, %l5 - cmp %l5, %l6 - bne,pt %xcc, 1b - nop - -after_lock_tlb: - wrpr %g0, (PSTATE_PRIV | PSTATE_PEF), %pstate - wr %g0, 0, %fprs - - wr %g0, ASI_P, %asi - - mov PRIMARY_CONTEXT, %g7 - -661: stxa %g0, [%g7] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %g0, [%g7] ASI_MMU - .previous - - membar #Sync - mov SECONDARY_CONTEXT, %g7 - -661: stxa %g0, [%g7] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %g0, [%g7] ASI_MMU - .previous - - membar #Sync - - /* Everything we do here, until we properly take over the - * trap table, must be done with extreme care. We cannot - * make any references to %g6 (current thread pointer), - * %g4 (current task pointer), or %g5 (base of current cpu's - * per-cpu area) until we properly take over the trap table - * from the firmware and hypervisor. - * - * Get onto temporary stack which is in the locked kernel image. - */ - sethi %hi(tramp_stack), %g1 - or %g1, %lo(tramp_stack), %g1 - add %g1, TRAMP_STACK_SIZE, %g1 - sub %g1, STACKFRAME_SZ + STACK_BIAS + 256, %sp - mov 0, %fp - - /* Put garbage in these registers to trap any access to them. */ - set 0xdeadbeef, %g4 - set 0xdeadbeef, %g5 - set 0xdeadbeef, %g6 - - call init_irqwork_curcpu - nop - - sethi %hi(tlb_type), %g3 - lduw [%g3 + %lo(tlb_type)], %g2 - cmp %g2, 3 - bne,pt %icc, 1f - nop - - call hard_smp_processor_id - nop - - call sun4v_register_mondo_queues - nop - -1: call init_cur_cpu_trap - ldx [%l0], %o0 - - /* Start using proper page size encodings in ctx register. */ - sethi %hi(sparc64_kern_pri_context), %g3 - ldx [%g3 + %lo(sparc64_kern_pri_context)], %g2 - mov PRIMARY_CONTEXT, %g1 - -661: stxa %g2, [%g1] ASI_DMMU - .section .sun4v_1insn_patch, "ax" - .word 661b - stxa %g2, [%g1] ASI_MMU - .previous - - membar #Sync - - wrpr %g0, 0, %wstate - - sethi %hi(prom_entry_lock), %g2 -1: ldstub [%g2 + %lo(prom_entry_lock)], %g1 - membar #StoreLoad | #StoreStore - brnz,pn %g1, 1b - nop - - /* As a hack, put &init_thread_union into %g6. - * prom_world() loads from here to restore the %asi - * register. - */ - sethi %hi(init_thread_union), %g6 - or %g6, %lo(init_thread_union), %g6 - - sethi %hi(is_sun4v), %o0 - lduw [%o0 + %lo(is_sun4v)], %o0 - brz,pt %o0, 2f - nop - - TRAP_LOAD_TRAP_BLOCK(%g2, %g3) - add %g2, TRAP_PER_CPU_FAULT_INFO, %g2 - stxa %g2, [%g0] ASI_SCRATCHPAD - - /* Compute physical address: - * - * paddr = kern_base + (mmfsa_vaddr - KERNBASE) - */ - sethi %hi(KERNBASE), %g3 - sub %g2, %g3, %g2 - sethi %hi(kern_base), %g3 - ldx [%g3 + %lo(kern_base)], %g3 - add %g2, %g3, %o1 - sethi %hi(sparc64_ttable_tl0), %o0 - - set prom_set_trap_table_name, %g2 - stx %g2, [%sp + 2047 + 128 + 0x00] - mov 2, %g2 - stx %g2, [%sp + 2047 + 128 + 0x08] - mov 0, %g2 - stx %g2, [%sp + 2047 + 128 + 0x10] - stx %o0, [%sp + 2047 + 128 + 0x18] - stx %o1, [%sp + 2047 + 128 + 0x20] - sethi %hi(p1275buf), %g2 - or %g2, %lo(p1275buf), %g2 - ldx [%g2 + 0x08], %o1 - call %o1 - add %sp, (2047 + 128), %o0 - - ba,pt %xcc, 3f - nop - -2: sethi %hi(sparc64_ttable_tl0), %o0 - set prom_set_trap_table_name, %g2 - stx %g2, [%sp + 2047 + 128 + 0x00] - mov 1, %g2 - stx %g2, [%sp + 2047 + 128 + 0x08] - mov 0, %g2 - stx %g2, [%sp + 2047 + 128 + 0x10] - stx %o0, [%sp + 2047 + 128 + 0x18] - sethi %hi(p1275buf), %g2 - or %g2, %lo(p1275buf), %g2 - ldx [%g2 + 0x08], %o1 - call %o1 - add %sp, (2047 + 128), %o0 - -3: sethi %hi(prom_entry_lock), %g2 - stb %g0, [%g2 + %lo(prom_entry_lock)] - membar #StoreStore | #StoreLoad - - ldx [%l0], %g6 - ldx [%g6 + TI_TASK], %g4 - - mov 1, %g5 - sllx %g5, THREAD_SHIFT, %g5 - sub %g5, (STACKFRAME_SZ + STACK_BIAS), %g5 - add %g6, %g5, %sp - mov 0, %fp - - rdpr %pstate, %o1 - or %o1, PSTATE_IE, %o1 - wrpr %o1, 0, %pstate - - call smp_callin - nop - call cpu_idle - mov 0, %o0 - call cpu_panic - nop -1: b,a,pt %xcc, 1b - - .align 8 -sparc64_cpu_startup_end: diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c deleted file mode 100644 index 81ccd22e78d4..000000000000 --- a/arch/sparc64/kernel/traps.c +++ /dev/null @@ -1,2601 +0,0 @@ -/* arch/sparc64/kernel/traps.c - * - * Copyright (C) 1995,1997,2008 David S. Miller (davem@davemloft.net) - * Copyright (C) 1997,1999,2000 Jakub Jelinek (jakub@redhat.com) - */ - -/* - * I like traps on v9, :)))) - */ - -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/linkage.h> -#include <linux/kernel.h> -#include <linux/signal.h> -#include <linux/smp.h> -#include <linux/mm.h> -#include <linux/init.h> -#include <linux/kdebug.h> - -#include <asm/smp.h> -#include <asm/delay.h> -#include <asm/system.h> -#include <asm/ptrace.h> -#include <asm/oplib.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/unistd.h> -#include <asm/uaccess.h> -#include <asm/fpumacro.h> -#include <asm/lsu.h> -#include <asm/dcu.h> -#include <asm/estate.h> -#include <asm/chafsr.h> -#include <asm/sfafsr.h> -#include <asm/psrcompat.h> -#include <asm/processor.h> -#include <asm/timer.h> -#include <asm/head.h> -#include <asm/prom.h> -#include <asm/memctrl.h> - -#include "entry.h" -#include "kstack.h" - -/* When an irrecoverable trap occurs at tl > 0, the trap entry - * code logs the trap state registers at every level in the trap - * stack. It is found at (pt_regs + sizeof(pt_regs)) and the layout - * is as follows: - */ -struct tl1_traplog { - struct { - unsigned long tstate; - unsigned long tpc; - unsigned long tnpc; - unsigned long tt; - } trapstack[4]; - unsigned long tl; -}; - -static void dump_tl1_traplog(struct tl1_traplog *p) -{ - int i, limit; - - printk(KERN_EMERG "TRAPLOG: Error at trap level 0x%lx, " - "dumping track stack.\n", p->tl); - - limit = (tlb_type == hypervisor) ? 2 : 4; - for (i = 0; i < limit; i++) { - printk(KERN_EMERG - "TRAPLOG: Trap level %d TSTATE[%016lx] TPC[%016lx] " - "TNPC[%016lx] TT[%lx]\n", - i + 1, - p->trapstack[i].tstate, p->trapstack[i].tpc, - p->trapstack[i].tnpc, p->trapstack[i].tt); - printk("TRAPLOG: TPC<%pS>\n", (void *) p->trapstack[i].tpc); - } -} - -void bad_trap(struct pt_regs *regs, long lvl) -{ - char buffer[32]; - siginfo_t info; - - if (notify_die(DIE_TRAP, "bad trap", regs, - 0, lvl, SIGTRAP) == NOTIFY_STOP) - return; - - if (lvl < 0x100) { - sprintf(buffer, "Bad hw trap %lx at tl0\n", lvl); - die_if_kernel(buffer, regs); - } - - lvl -= 0x100; - if (regs->tstate & TSTATE_PRIV) { - sprintf(buffer, "Kernel bad sw trap %lx", lvl); - die_if_kernel(buffer, regs); - } - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = ILL_ILLTRP; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = lvl; - force_sig_info(SIGILL, &info, current); -} - -void bad_trap_tl1(struct pt_regs *regs, long lvl) -{ - char buffer[32]; - - if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs, - 0, lvl, SIGTRAP) == NOTIFY_STOP) - return; - - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - - sprintf (buffer, "Bad trap %lx at tl>0", lvl); - die_if_kernel (buffer, regs); -} - -#ifdef CONFIG_DEBUG_BUGVERBOSE -void do_BUG(const char *file, int line) -{ - bust_spinlocks(1); - printk("kernel BUG at %s:%d!\n", file, line); -} -#endif - -static DEFINE_SPINLOCK(dimm_handler_lock); -static dimm_printer_t dimm_handler; - -static int sprintf_dimm(int synd_code, unsigned long paddr, char *buf, int buflen) -{ - unsigned long flags; - int ret = -ENODEV; - - spin_lock_irqsave(&dimm_handler_lock, flags); - if (dimm_handler) { - ret = dimm_handler(synd_code, paddr, buf, buflen); - } else if (tlb_type == spitfire) { - if (prom_getunumber(synd_code, paddr, buf, buflen) == -1) - ret = -EINVAL; - else - ret = 0; - } else - ret = -ENODEV; - spin_unlock_irqrestore(&dimm_handler_lock, flags); - - return ret; -} - -int register_dimm_printer(dimm_printer_t func) -{ - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&dimm_handler_lock, flags); - if (!dimm_handler) - dimm_handler = func; - else - ret = -EEXIST; - spin_unlock_irqrestore(&dimm_handler_lock, flags); - - return ret; -} -EXPORT_SYMBOL_GPL(register_dimm_printer); - -void unregister_dimm_printer(dimm_printer_t func) -{ - unsigned long flags; - - spin_lock_irqsave(&dimm_handler_lock, flags); - if (dimm_handler == func) - dimm_handler = NULL; - spin_unlock_irqrestore(&dimm_handler_lock, flags); -} -EXPORT_SYMBOL_GPL(unregister_dimm_printer); - -void spitfire_insn_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "instruction access exception", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) { - printk("spitfire_insn_access_exception: SFSR[%016lx] " - "SFAR[%016lx], going.\n", sfsr, sfar); - die_if_kernel("Iax", regs); - } - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGSEGV; - info.si_errno = 0; - info.si_code = SEGV_MAPERR; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = 0; - force_sig_info(SIGSEGV, &info, current); -} - -void spitfire_insn_access_exception_tl1(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) -{ - if (notify_die(DIE_TRAP_TL1, "instruction access exception tl1", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - spitfire_insn_access_exception(regs, sfsr, sfar); -} - -void sun4v_insn_access_exception(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx) -{ - unsigned short type = (type_ctx >> 16); - unsigned short ctx = (type_ctx & 0xffff); - siginfo_t info; - - if (notify_die(DIE_TRAP, "instruction access exception", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) { - printk("sun4v_insn_access_exception: ADDR[%016lx] " - "CTX[%04x] TYPE[%04x], going.\n", - addr, ctx, type); - die_if_kernel("Iax", regs); - } - - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGSEGV; - info.si_errno = 0; - info.si_code = SEGV_MAPERR; - info.si_addr = (void __user *) addr; - info.si_trapno = 0; - force_sig_info(SIGSEGV, &info, current); -} - -void sun4v_insn_access_exception_tl1(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx) -{ - if (notify_die(DIE_TRAP_TL1, "instruction access exception tl1", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - sun4v_insn_access_exception(regs, addr, type_ctx); -} - -void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "data access exception", regs, - 0, 0x30, SIGTRAP) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) { - /* Test if this comes from uaccess places. */ - const struct exception_table_entry *entry; - - entry = search_exception_tables(regs->tpc); - if (entry) { - /* Ouch, somebody is trying VM hole tricks on us... */ -#ifdef DEBUG_EXCEPTIONS - printk("Exception: PC<%016lx> faddr<UNKNOWN>\n", regs->tpc); - printk("EX_TABLE: insn<%016lx> fixup<%016lx>\n", - regs->tpc, entry->fixup); -#endif - regs->tpc = entry->fixup; - regs->tnpc = regs->tpc + 4; - return; - } - /* Shit... */ - printk("spitfire_data_access_exception: SFSR[%016lx] " - "SFAR[%016lx], going.\n", sfsr, sfar); - die_if_kernel("Dax", regs); - } - - info.si_signo = SIGSEGV; - info.si_errno = 0; - info.si_code = SEGV_MAPERR; - info.si_addr = (void __user *)sfar; - info.si_trapno = 0; - force_sig_info(SIGSEGV, &info, current); -} - -void spitfire_data_access_exception_tl1(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) -{ - if (notify_die(DIE_TRAP_TL1, "data access exception tl1", regs, - 0, 0x30, SIGTRAP) == NOTIFY_STOP) - return; - - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - spitfire_data_access_exception(regs, sfsr, sfar); -} - -void sun4v_data_access_exception(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx) -{ - unsigned short type = (type_ctx >> 16); - unsigned short ctx = (type_ctx & 0xffff); - siginfo_t info; - - if (notify_die(DIE_TRAP, "data access exception", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) { - printk("sun4v_data_access_exception: ADDR[%016lx] " - "CTX[%04x] TYPE[%04x], going.\n", - addr, ctx, type); - die_if_kernel("Dax", regs); - } - - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGSEGV; - info.si_errno = 0; - info.si_code = SEGV_MAPERR; - info.si_addr = (void __user *) addr; - info.si_trapno = 0; - force_sig_info(SIGSEGV, &info, current); -} - -void sun4v_data_access_exception_tl1(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx) -{ - if (notify_die(DIE_TRAP_TL1, "data access exception tl1", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - sun4v_data_access_exception(regs, addr, type_ctx); -} - -#ifdef CONFIG_PCI -#include "pci_impl.h" -#endif - -/* When access exceptions happen, we must do this. */ -static void spitfire_clean_and_reenable_l1_caches(void) -{ - unsigned long va; - - if (tlb_type != spitfire) - BUG(); - - /* Clean 'em. */ - for (va = 0; va < (PAGE_SIZE << 1); va += 32) { - spitfire_put_icache_tag(va, 0x0); - spitfire_put_dcache_tag(va, 0x0); - } - - /* Re-enable in LSU. */ - __asm__ __volatile__("flush %%g6\n\t" - "membar #Sync\n\t" - "stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (LSU_CONTROL_IC | LSU_CONTROL_DC | - LSU_CONTROL_IM | LSU_CONTROL_DM), - "i" (ASI_LSU_CONTROL) - : "memory"); -} - -static void spitfire_enable_estate_errors(void) -{ - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (ESTATE_ERR_ALL), - "i" (ASI_ESTATE_ERROR_EN)); -} - -static char ecc_syndrome_table[] = { - 0x4c, 0x40, 0x41, 0x48, 0x42, 0x48, 0x48, 0x49, - 0x43, 0x48, 0x48, 0x49, 0x48, 0x49, 0x49, 0x4a, - 0x44, 0x48, 0x48, 0x20, 0x48, 0x39, 0x4b, 0x48, - 0x48, 0x25, 0x31, 0x48, 0x28, 0x48, 0x48, 0x2c, - 0x45, 0x48, 0x48, 0x21, 0x48, 0x3d, 0x04, 0x48, - 0x48, 0x4b, 0x35, 0x48, 0x2d, 0x48, 0x48, 0x29, - 0x48, 0x00, 0x01, 0x48, 0x0a, 0x48, 0x48, 0x4b, - 0x0f, 0x48, 0x48, 0x4b, 0x48, 0x49, 0x49, 0x48, - 0x46, 0x48, 0x48, 0x2a, 0x48, 0x3b, 0x27, 0x48, - 0x48, 0x4b, 0x33, 0x48, 0x22, 0x48, 0x48, 0x2e, - 0x48, 0x19, 0x1d, 0x48, 0x1b, 0x4a, 0x48, 0x4b, - 0x1f, 0x48, 0x4a, 0x4b, 0x48, 0x4b, 0x4b, 0x48, - 0x48, 0x4b, 0x24, 0x48, 0x07, 0x48, 0x48, 0x36, - 0x4b, 0x48, 0x48, 0x3e, 0x48, 0x30, 0x38, 0x48, - 0x49, 0x48, 0x48, 0x4b, 0x48, 0x4b, 0x16, 0x48, - 0x48, 0x12, 0x4b, 0x48, 0x49, 0x48, 0x48, 0x4b, - 0x47, 0x48, 0x48, 0x2f, 0x48, 0x3f, 0x4b, 0x48, - 0x48, 0x06, 0x37, 0x48, 0x23, 0x48, 0x48, 0x2b, - 0x48, 0x05, 0x4b, 0x48, 0x4b, 0x48, 0x48, 0x32, - 0x26, 0x48, 0x48, 0x3a, 0x48, 0x34, 0x3c, 0x48, - 0x48, 0x11, 0x15, 0x48, 0x13, 0x4a, 0x48, 0x4b, - 0x17, 0x48, 0x4a, 0x4b, 0x48, 0x4b, 0x4b, 0x48, - 0x49, 0x48, 0x48, 0x4b, 0x48, 0x4b, 0x1e, 0x48, - 0x48, 0x1a, 0x4b, 0x48, 0x49, 0x48, 0x48, 0x4b, - 0x48, 0x08, 0x0d, 0x48, 0x02, 0x48, 0x48, 0x49, - 0x03, 0x48, 0x48, 0x49, 0x48, 0x4b, 0x4b, 0x48, - 0x49, 0x48, 0x48, 0x49, 0x48, 0x4b, 0x10, 0x48, - 0x48, 0x14, 0x4b, 0x48, 0x4b, 0x48, 0x48, 0x4b, - 0x49, 0x48, 0x48, 0x49, 0x48, 0x4b, 0x18, 0x48, - 0x48, 0x1c, 0x4b, 0x48, 0x4b, 0x48, 0x48, 0x4b, - 0x4a, 0x0c, 0x09, 0x48, 0x0e, 0x48, 0x48, 0x4b, - 0x0b, 0x48, 0x48, 0x4b, 0x48, 0x4b, 0x4b, 0x4a -}; - -static char *syndrome_unknown = "<Unknown>"; - -static void spitfire_log_udb_syndrome(unsigned long afar, unsigned long udbh, unsigned long udbl, unsigned long bit) -{ - unsigned short scode; - char memmod_str[64], *p; - - if (udbl & bit) { - scode = ecc_syndrome_table[udbl & 0xff]; - if (sprintf_dimm(scode, afar, memmod_str, sizeof(memmod_str)) < 0) - p = syndrome_unknown; - else - p = memmod_str; - printk(KERN_WARNING "CPU[%d]: UDBL Syndrome[%x] " - "Memory Module \"%s\"\n", - smp_processor_id(), scode, p); - } - - if (udbh & bit) { - scode = ecc_syndrome_table[udbh & 0xff]; - if (sprintf_dimm(scode, afar, memmod_str, sizeof(memmod_str)) < 0) - p = syndrome_unknown; - else - p = memmod_str; - printk(KERN_WARNING "CPU[%d]: UDBH Syndrome[%x] " - "Memory Module \"%s\"\n", - smp_processor_id(), scode, p); - } - -} - -static void spitfire_cee_log(unsigned long afsr, unsigned long afar, unsigned long udbh, unsigned long udbl, int tl1, struct pt_regs *regs) -{ - - printk(KERN_WARNING "CPU[%d]: Correctable ECC Error " - "AFSR[%lx] AFAR[%016lx] UDBL[%lx] UDBH[%lx] TL>1[%d]\n", - smp_processor_id(), afsr, afar, udbl, udbh, tl1); - - spitfire_log_udb_syndrome(afar, udbh, udbl, UDBE_CE); - - /* We always log it, even if someone is listening for this - * trap. - */ - notify_die(DIE_TRAP, "Correctable ECC Error", regs, - 0, TRAP_TYPE_CEE, SIGTRAP); - - /* The Correctable ECC Error trap does not disable I/D caches. So - * we only have to restore the ESTATE Error Enable register. - */ - spitfire_enable_estate_errors(); -} - -static void spitfire_ue_log(unsigned long afsr, unsigned long afar, unsigned long udbh, unsigned long udbl, unsigned long tt, int tl1, struct pt_regs *regs) -{ - siginfo_t info; - - printk(KERN_WARNING "CPU[%d]: Uncorrectable Error AFSR[%lx] " - "AFAR[%lx] UDBL[%lx] UDBH[%ld] TT[%lx] TL>1[%d]\n", - smp_processor_id(), afsr, afar, udbl, udbh, tt, tl1); - - /* XXX add more human friendly logging of the error status - * XXX as is implemented for cheetah - */ - - spitfire_log_udb_syndrome(afar, udbh, udbl, UDBE_UE); - - /* We always log it, even if someone is listening for this - * trap. - */ - notify_die(DIE_TRAP, "Uncorrectable Error", regs, - 0, tt, SIGTRAP); - - if (regs->tstate & TSTATE_PRIV) { - if (tl1) - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("UE", regs); - } - - /* XXX need more intelligent processing here, such as is implemented - * XXX for cheetah errors, in fact if the E-cache still holds the - * XXX line with bad parity this will loop - */ - - spitfire_clean_and_reenable_l1_caches(); - spitfire_enable_estate_errors(); - - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_OBJERR; - info.si_addr = (void *)0; - info.si_trapno = 0; - force_sig_info(SIGBUS, &info, current); -} - -void spitfire_access_error(struct pt_regs *regs, unsigned long status_encoded, unsigned long afar) -{ - unsigned long afsr, tt, udbh, udbl; - int tl1; - - afsr = (status_encoded & SFSTAT_AFSR_MASK) >> SFSTAT_AFSR_SHIFT; - tt = (status_encoded & SFSTAT_TRAP_TYPE) >> SFSTAT_TRAP_TYPE_SHIFT; - tl1 = (status_encoded & SFSTAT_TL_GT_ONE) ? 1 : 0; - udbl = (status_encoded & SFSTAT_UDBL_MASK) >> SFSTAT_UDBL_SHIFT; - udbh = (status_encoded & SFSTAT_UDBH_MASK) >> SFSTAT_UDBH_SHIFT; - -#ifdef CONFIG_PCI - if (tt == TRAP_TYPE_DAE && - pci_poke_in_progress && pci_poke_cpu == smp_processor_id()) { - spitfire_clean_and_reenable_l1_caches(); - spitfire_enable_estate_errors(); - - pci_poke_faulted = 1; - regs->tnpc = regs->tpc + 4; - return; - } -#endif - - if (afsr & SFAFSR_UE) - spitfire_ue_log(afsr, afar, udbh, udbl, tt, tl1, regs); - - if (tt == TRAP_TYPE_CEE) { - /* Handle the case where we took a CEE trap, but ACK'd - * only the UE state in the UDB error registers. - */ - if (afsr & SFAFSR_UE) { - if (udbh & UDBE_CE) { - __asm__ __volatile__( - "stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (udbh & UDBE_CE), - "r" (0x0), "i" (ASI_UDB_ERROR_W)); - } - if (udbl & UDBE_CE) { - __asm__ __volatile__( - "stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (udbl & UDBE_CE), - "r" (0x18), "i" (ASI_UDB_ERROR_W)); - } - } - - spitfire_cee_log(afsr, afar, udbh, udbl, tl1, regs); - } -} - -int cheetah_pcache_forced_on; - -void cheetah_enable_pcache(void) -{ - unsigned long dcr; - - printk("CHEETAH: Enabling P-Cache on cpu %d.\n", - smp_processor_id()); - - __asm__ __volatile__("ldxa [%%g0] %1, %0" - : "=r" (dcr) - : "i" (ASI_DCU_CONTROL_REG)); - dcr |= (DCU_PE | DCU_HPE | DCU_SPE | DCU_SL); - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (dcr), "i" (ASI_DCU_CONTROL_REG)); -} - -/* Cheetah error trap handling. */ -static unsigned long ecache_flush_physbase; -static unsigned long ecache_flush_linesize; -static unsigned long ecache_flush_size; - -/* This table is ordered in priority of errors and matches the - * AFAR overwrite policy as well. - */ - -struct afsr_error_table { - unsigned long mask; - const char *name; -}; - -static const char CHAFSR_PERR_msg[] = - "System interface protocol error"; -static const char CHAFSR_IERR_msg[] = - "Internal processor error"; -static const char CHAFSR_ISAP_msg[] = - "System request parity error on incoming addresss"; -static const char CHAFSR_UCU_msg[] = - "Uncorrectable E-cache ECC error for ifetch/data"; -static const char CHAFSR_UCC_msg[] = - "SW Correctable E-cache ECC error for ifetch/data"; -static const char CHAFSR_UE_msg[] = - "Uncorrectable system bus data ECC error for read"; -static const char CHAFSR_EDU_msg[] = - "Uncorrectable E-cache ECC error for stmerge/blkld"; -static const char CHAFSR_EMU_msg[] = - "Uncorrectable system bus MTAG error"; -static const char CHAFSR_WDU_msg[] = - "Uncorrectable E-cache ECC error for writeback"; -static const char CHAFSR_CPU_msg[] = - "Uncorrectable ECC error for copyout"; -static const char CHAFSR_CE_msg[] = - "HW corrected system bus data ECC error for read"; -static const char CHAFSR_EDC_msg[] = - "HW corrected E-cache ECC error for stmerge/blkld"; -static const char CHAFSR_EMC_msg[] = - "HW corrected system bus MTAG ECC error"; -static const char CHAFSR_WDC_msg[] = - "HW corrected E-cache ECC error for writeback"; -static const char CHAFSR_CPC_msg[] = - "HW corrected ECC error for copyout"; -static const char CHAFSR_TO_msg[] = - "Unmapped error from system bus"; -static const char CHAFSR_BERR_msg[] = - "Bus error response from system bus"; -static const char CHAFSR_IVC_msg[] = - "HW corrected system bus data ECC error for ivec read"; -static const char CHAFSR_IVU_msg[] = - "Uncorrectable system bus data ECC error for ivec read"; -static struct afsr_error_table __cheetah_error_table[] = { - { CHAFSR_PERR, CHAFSR_PERR_msg }, - { CHAFSR_IERR, CHAFSR_IERR_msg }, - { CHAFSR_ISAP, CHAFSR_ISAP_msg }, - { CHAFSR_UCU, CHAFSR_UCU_msg }, - { CHAFSR_UCC, CHAFSR_UCC_msg }, - { CHAFSR_UE, CHAFSR_UE_msg }, - { CHAFSR_EDU, CHAFSR_EDU_msg }, - { CHAFSR_EMU, CHAFSR_EMU_msg }, - { CHAFSR_WDU, CHAFSR_WDU_msg }, - { CHAFSR_CPU, CHAFSR_CPU_msg }, - { CHAFSR_CE, CHAFSR_CE_msg }, - { CHAFSR_EDC, CHAFSR_EDC_msg }, - { CHAFSR_EMC, CHAFSR_EMC_msg }, - { CHAFSR_WDC, CHAFSR_WDC_msg }, - { CHAFSR_CPC, CHAFSR_CPC_msg }, - { CHAFSR_TO, CHAFSR_TO_msg }, - { CHAFSR_BERR, CHAFSR_BERR_msg }, - /* These two do not update the AFAR. */ - { CHAFSR_IVC, CHAFSR_IVC_msg }, - { CHAFSR_IVU, CHAFSR_IVU_msg }, - { 0, NULL }, -}; -static const char CHPAFSR_DTO_msg[] = - "System bus unmapped error for prefetch/storequeue-read"; -static const char CHPAFSR_DBERR_msg[] = - "System bus error for prefetch/storequeue-read"; -static const char CHPAFSR_THCE_msg[] = - "Hardware corrected E-cache Tag ECC error"; -static const char CHPAFSR_TSCE_msg[] = - "SW handled correctable E-cache Tag ECC error"; -static const char CHPAFSR_TUE_msg[] = - "Uncorrectable E-cache Tag ECC error"; -static const char CHPAFSR_DUE_msg[] = - "System bus uncorrectable data ECC error due to prefetch/store-fill"; -static struct afsr_error_table __cheetah_plus_error_table[] = { - { CHAFSR_PERR, CHAFSR_PERR_msg }, - { CHAFSR_IERR, CHAFSR_IERR_msg }, - { CHAFSR_ISAP, CHAFSR_ISAP_msg }, - { CHAFSR_UCU, CHAFSR_UCU_msg }, - { CHAFSR_UCC, CHAFSR_UCC_msg }, - { CHAFSR_UE, CHAFSR_UE_msg }, - { CHAFSR_EDU, CHAFSR_EDU_msg }, - { CHAFSR_EMU, CHAFSR_EMU_msg }, - { CHAFSR_WDU, CHAFSR_WDU_msg }, - { CHAFSR_CPU, CHAFSR_CPU_msg }, - { CHAFSR_CE, CHAFSR_CE_msg }, - { CHAFSR_EDC, CHAFSR_EDC_msg }, - { CHAFSR_EMC, CHAFSR_EMC_msg }, - { CHAFSR_WDC, CHAFSR_WDC_msg }, - { CHAFSR_CPC, CHAFSR_CPC_msg }, - { CHAFSR_TO, CHAFSR_TO_msg }, - { CHAFSR_BERR, CHAFSR_BERR_msg }, - { CHPAFSR_DTO, CHPAFSR_DTO_msg }, - { CHPAFSR_DBERR, CHPAFSR_DBERR_msg }, - { CHPAFSR_THCE, CHPAFSR_THCE_msg }, - { CHPAFSR_TSCE, CHPAFSR_TSCE_msg }, - { CHPAFSR_TUE, CHPAFSR_TUE_msg }, - { CHPAFSR_DUE, CHPAFSR_DUE_msg }, - /* These two do not update the AFAR. */ - { CHAFSR_IVC, CHAFSR_IVC_msg }, - { CHAFSR_IVU, CHAFSR_IVU_msg }, - { 0, NULL }, -}; -static const char JPAFSR_JETO_msg[] = - "System interface protocol error, hw timeout caused"; -static const char JPAFSR_SCE_msg[] = - "Parity error on system snoop results"; -static const char JPAFSR_JEIC_msg[] = - "System interface protocol error, illegal command detected"; -static const char JPAFSR_JEIT_msg[] = - "System interface protocol error, illegal ADTYPE detected"; -static const char JPAFSR_OM_msg[] = - "Out of range memory error has occurred"; -static const char JPAFSR_ETP_msg[] = - "Parity error on L2 cache tag SRAM"; -static const char JPAFSR_UMS_msg[] = - "Error due to unsupported store"; -static const char JPAFSR_RUE_msg[] = - "Uncorrectable ECC error from remote cache/memory"; -static const char JPAFSR_RCE_msg[] = - "Correctable ECC error from remote cache/memory"; -static const char JPAFSR_BP_msg[] = - "JBUS parity error on returned read data"; -static const char JPAFSR_WBP_msg[] = - "JBUS parity error on data for writeback or block store"; -static const char JPAFSR_FRC_msg[] = - "Foreign read to DRAM incurring correctable ECC error"; -static const char JPAFSR_FRU_msg[] = - "Foreign read to DRAM incurring uncorrectable ECC error"; -static struct afsr_error_table __jalapeno_error_table[] = { - { JPAFSR_JETO, JPAFSR_JETO_msg }, - { JPAFSR_SCE, JPAFSR_SCE_msg }, - { JPAFSR_JEIC, JPAFSR_JEIC_msg }, - { JPAFSR_JEIT, JPAFSR_JEIT_msg }, - { CHAFSR_PERR, CHAFSR_PERR_msg }, - { CHAFSR_IERR, CHAFSR_IERR_msg }, - { CHAFSR_ISAP, CHAFSR_ISAP_msg }, - { CHAFSR_UCU, CHAFSR_UCU_msg }, - { CHAFSR_UCC, CHAFSR_UCC_msg }, - { CHAFSR_UE, CHAFSR_UE_msg }, - { CHAFSR_EDU, CHAFSR_EDU_msg }, - { JPAFSR_OM, JPAFSR_OM_msg }, - { CHAFSR_WDU, CHAFSR_WDU_msg }, - { CHAFSR_CPU, CHAFSR_CPU_msg }, - { CHAFSR_CE, CHAFSR_CE_msg }, - { CHAFSR_EDC, CHAFSR_EDC_msg }, - { JPAFSR_ETP, JPAFSR_ETP_msg }, - { CHAFSR_WDC, CHAFSR_WDC_msg }, - { CHAFSR_CPC, CHAFSR_CPC_msg }, - { CHAFSR_TO, CHAFSR_TO_msg }, - { CHAFSR_BERR, CHAFSR_BERR_msg }, - { JPAFSR_UMS, JPAFSR_UMS_msg }, - { JPAFSR_RUE, JPAFSR_RUE_msg }, - { JPAFSR_RCE, JPAFSR_RCE_msg }, - { JPAFSR_BP, JPAFSR_BP_msg }, - { JPAFSR_WBP, JPAFSR_WBP_msg }, - { JPAFSR_FRC, JPAFSR_FRC_msg }, - { JPAFSR_FRU, JPAFSR_FRU_msg }, - /* These two do not update the AFAR. */ - { CHAFSR_IVU, CHAFSR_IVU_msg }, - { 0, NULL }, -}; -static struct afsr_error_table *cheetah_error_table; -static unsigned long cheetah_afsr_errors; - -struct cheetah_err_info *cheetah_error_log; - -static inline struct cheetah_err_info *cheetah_get_error_log(unsigned long afsr) -{ - struct cheetah_err_info *p; - int cpu = smp_processor_id(); - - if (!cheetah_error_log) - return NULL; - - p = cheetah_error_log + (cpu * 2); - if ((afsr & CHAFSR_TL1) != 0UL) - p++; - - return p; -} - -extern unsigned int tl0_icpe[], tl1_icpe[]; -extern unsigned int tl0_dcpe[], tl1_dcpe[]; -extern unsigned int tl0_fecc[], tl1_fecc[]; -extern unsigned int tl0_cee[], tl1_cee[]; -extern unsigned int tl0_iae[], tl1_iae[]; -extern unsigned int tl0_dae[], tl1_dae[]; -extern unsigned int cheetah_plus_icpe_trap_vector[], cheetah_plus_icpe_trap_vector_tl1[]; -extern unsigned int cheetah_plus_dcpe_trap_vector[], cheetah_plus_dcpe_trap_vector_tl1[]; -extern unsigned int cheetah_fecc_trap_vector[], cheetah_fecc_trap_vector_tl1[]; -extern unsigned int cheetah_cee_trap_vector[], cheetah_cee_trap_vector_tl1[]; -extern unsigned int cheetah_deferred_trap_vector[], cheetah_deferred_trap_vector_tl1[]; - -void __init cheetah_ecache_flush_init(void) -{ - unsigned long largest_size, smallest_linesize, order, ver; - int i, sz; - - /* Scan all cpu device tree nodes, note two values: - * 1) largest E-cache size - * 2) smallest E-cache line size - */ - largest_size = 0UL; - smallest_linesize = ~0UL; - - for (i = 0; i < NR_CPUS; i++) { - unsigned long val; - - val = cpu_data(i).ecache_size; - if (!val) - continue; - - if (val > largest_size) - largest_size = val; - - val = cpu_data(i).ecache_line_size; - if (val < smallest_linesize) - smallest_linesize = val; - - } - - if (largest_size == 0UL || smallest_linesize == ~0UL) { - prom_printf("cheetah_ecache_flush_init: Cannot probe cpu E-cache " - "parameters.\n"); - prom_halt(); - } - - ecache_flush_size = (2 * largest_size); - ecache_flush_linesize = smallest_linesize; - - ecache_flush_physbase = find_ecache_flush_span(ecache_flush_size); - - if (ecache_flush_physbase == ~0UL) { - prom_printf("cheetah_ecache_flush_init: Cannot find %d byte " - "contiguous physical memory.\n", - ecache_flush_size); - prom_halt(); - } - - /* Now allocate error trap reporting scoreboard. */ - sz = NR_CPUS * (2 * sizeof(struct cheetah_err_info)); - for (order = 0; order < MAX_ORDER; order++) { - if ((PAGE_SIZE << order) >= sz) - break; - } - cheetah_error_log = (struct cheetah_err_info *) - __get_free_pages(GFP_KERNEL, order); - if (!cheetah_error_log) { - prom_printf("cheetah_ecache_flush_init: Failed to allocate " - "error logging scoreboard (%d bytes).\n", sz); - prom_halt(); - } - memset(cheetah_error_log, 0, PAGE_SIZE << order); - - /* Mark all AFSRs as invalid so that the trap handler will - * log new new information there. - */ - for (i = 0; i < 2 * NR_CPUS; i++) - cheetah_error_log[i].afsr = CHAFSR_INVALID; - - __asm__ ("rdpr %%ver, %0" : "=r" (ver)); - if ((ver >> 32) == __JALAPENO_ID || - (ver >> 32) == __SERRANO_ID) { - cheetah_error_table = &__jalapeno_error_table[0]; - cheetah_afsr_errors = JPAFSR_ERRORS; - } else if ((ver >> 32) == 0x003e0015) { - cheetah_error_table = &__cheetah_plus_error_table[0]; - cheetah_afsr_errors = CHPAFSR_ERRORS; - } else { - cheetah_error_table = &__cheetah_error_table[0]; - cheetah_afsr_errors = CHAFSR_ERRORS; - } - - /* Now patch trap tables. */ - memcpy(tl0_fecc, cheetah_fecc_trap_vector, (8 * 4)); - memcpy(tl1_fecc, cheetah_fecc_trap_vector_tl1, (8 * 4)); - memcpy(tl0_cee, cheetah_cee_trap_vector, (8 * 4)); - memcpy(tl1_cee, cheetah_cee_trap_vector_tl1, (8 * 4)); - memcpy(tl0_iae, cheetah_deferred_trap_vector, (8 * 4)); - memcpy(tl1_iae, cheetah_deferred_trap_vector_tl1, (8 * 4)); - memcpy(tl0_dae, cheetah_deferred_trap_vector, (8 * 4)); - memcpy(tl1_dae, cheetah_deferred_trap_vector_tl1, (8 * 4)); - if (tlb_type == cheetah_plus) { - memcpy(tl0_dcpe, cheetah_plus_dcpe_trap_vector, (8 * 4)); - memcpy(tl1_dcpe, cheetah_plus_dcpe_trap_vector_tl1, (8 * 4)); - memcpy(tl0_icpe, cheetah_plus_icpe_trap_vector, (8 * 4)); - memcpy(tl1_icpe, cheetah_plus_icpe_trap_vector_tl1, (8 * 4)); - } - flushi(PAGE_OFFSET); -} - -static void cheetah_flush_ecache(void) -{ - unsigned long flush_base = ecache_flush_physbase; - unsigned long flush_linesize = ecache_flush_linesize; - unsigned long flush_size = ecache_flush_size; - - __asm__ __volatile__("1: subcc %0, %4, %0\n\t" - " bne,pt %%xcc, 1b\n\t" - " ldxa [%2 + %0] %3, %%g0\n\t" - : "=&r" (flush_size) - : "0" (flush_size), "r" (flush_base), - "i" (ASI_PHYS_USE_EC), "r" (flush_linesize)); -} - -static void cheetah_flush_ecache_line(unsigned long physaddr) -{ - unsigned long alias; - - physaddr &= ~(8UL - 1UL); - physaddr = (ecache_flush_physbase + - (physaddr & ((ecache_flush_size>>1UL) - 1UL))); - alias = physaddr + (ecache_flush_size >> 1UL); - __asm__ __volatile__("ldxa [%0] %2, %%g0\n\t" - "ldxa [%1] %2, %%g0\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (physaddr), "r" (alias), - "i" (ASI_PHYS_USE_EC)); -} - -/* Unfortunately, the diagnostic access to the I-cache tags we need to - * use to clear the thing interferes with I-cache coherency transactions. - * - * So we must only flush the I-cache when it is disabled. - */ -static void __cheetah_flush_icache(void) -{ - unsigned int icache_size, icache_line_size; - unsigned long addr; - - icache_size = local_cpu_data().icache_size; - icache_line_size = local_cpu_data().icache_line_size; - - /* Clear the valid bits in all the tags. */ - for (addr = 0; addr < icache_size; addr += icache_line_size) { - __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (addr | (2 << 3)), - "i" (ASI_IC_TAG)); - } -} - -static void cheetah_flush_icache(void) -{ - unsigned long dcu_save; - - /* Save current DCU, disable I-cache. */ - __asm__ __volatile__("ldxa [%%g0] %1, %0\n\t" - "or %0, %2, %%g1\n\t" - "stxa %%g1, [%%g0] %1\n\t" - "membar #Sync" - : "=r" (dcu_save) - : "i" (ASI_DCU_CONTROL_REG), "i" (DCU_IC) - : "g1"); - - __cheetah_flush_icache(); - - /* Restore DCU register */ - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (dcu_save), "i" (ASI_DCU_CONTROL_REG)); -} - -static void cheetah_flush_dcache(void) -{ - unsigned int dcache_size, dcache_line_size; - unsigned long addr; - - dcache_size = local_cpu_data().dcache_size; - dcache_line_size = local_cpu_data().dcache_line_size; - - for (addr = 0; addr < dcache_size; addr += dcache_line_size) { - __asm__ __volatile__("stxa %%g0, [%0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (addr), "i" (ASI_DCACHE_TAG)); - } -} - -/* In order to make the even parity correct we must do two things. - * First, we clear DC_data_parity and set DC_utag to an appropriate value. - * Next, we clear out all 32-bytes of data for that line. Data of - * all-zero + tag parity value of zero == correct parity. - */ -static void cheetah_plus_zap_dcache_parity(void) -{ - unsigned int dcache_size, dcache_line_size; - unsigned long addr; - - dcache_size = local_cpu_data().dcache_size; - dcache_line_size = local_cpu_data().dcache_line_size; - - for (addr = 0; addr < dcache_size; addr += dcache_line_size) { - unsigned long tag = (addr >> 14); - unsigned long line; - - __asm__ __volatile__("membar #Sync\n\t" - "stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (tag), "r" (addr), - "i" (ASI_DCACHE_UTAG)); - for (line = addr; line < addr + dcache_line_size; line += 8) - __asm__ __volatile__("membar #Sync\n\t" - "stxa %%g0, [%0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (line), - "i" (ASI_DCACHE_DATA)); - } -} - -/* Conversion tables used to frob Cheetah AFSR syndrome values into - * something palatable to the memory controller driver get_unumber - * routine. - */ -#define MT0 137 -#define MT1 138 -#define MT2 139 -#define NONE 254 -#define MTC0 140 -#define MTC1 141 -#define MTC2 142 -#define MTC3 143 -#define C0 128 -#define C1 129 -#define C2 130 -#define C3 131 -#define C4 132 -#define C5 133 -#define C6 134 -#define C7 135 -#define C8 136 -#define M2 144 -#define M3 145 -#define M4 146 -#define M 147 -static unsigned char cheetah_ecc_syntab[] = { -/*00*/NONE, C0, C1, M2, C2, M2, M3, 47, C3, M2, M2, 53, M2, 41, 29, M, -/*01*/C4, M, M, 50, M2, 38, 25, M2, M2, 33, 24, M2, 11, M, M2, 16, -/*02*/C5, M, M, 46, M2, 37, 19, M2, M, 31, 32, M, 7, M2, M2, 10, -/*03*/M2, 40, 13, M2, 59, M, M2, 66, M, M2, M2, 0, M2, 67, 71, M, -/*04*/C6, M, M, 43, M, 36, 18, M, M2, 49, 15, M, 63, M2, M2, 6, -/*05*/M2, 44, 28, M2, M, M2, M2, 52, 68, M2, M2, 62, M2, M3, M3, M4, -/*06*/M2, 26, 106, M2, 64, M, M2, 2, 120, M, M2, M3, M, M3, M3, M4, -/*07*/116, M2, M2, M3, M2, M3, M, M4, M2, 58, 54, M2, M, M4, M4, M3, -/*08*/C7, M2, M, 42, M, 35, 17, M2, M, 45, 14, M2, 21, M2, M2, 5, -/*09*/M, 27, M, M, 99, M, M, 3, 114, M2, M2, 20, M2, M3, M3, M, -/*0a*/M2, 23, 113, M2, 112, M2, M, 51, 95, M, M2, M3, M2, M3, M3, M2, -/*0b*/103, M, M2, M3, M2, M3, M3, M4, M2, 48, M, M, 73, M2, M, M3, -/*0c*/M2, 22, 110, M2, 109, M2, M, 9, 108, M2, M, M3, M2, M3, M3, M, -/*0d*/102, M2, M, M, M2, M3, M3, M, M2, M3, M3, M2, M, M4, M, M3, -/*0e*/98, M, M2, M3, M2, M, M3, M4, M2, M3, M3, M4, M3, M, M, M, -/*0f*/M2, M3, M3, M, M3, M, M, M, 56, M4, M, M3, M4, M, M, M, -/*10*/C8, M, M2, 39, M, 34, 105, M2, M, 30, 104, M, 101, M, M, 4, -/*11*/M, M, 100, M, 83, M, M2, 12, 87, M, M, 57, M2, M, M3, M, -/*12*/M2, 97, 82, M2, 78, M2, M2, 1, 96, M, M, M, M, M, M3, M2, -/*13*/94, M, M2, M3, M2, M, M3, M, M2, M, 79, M, 69, M, M4, M, -/*14*/M2, 93, 92, M, 91, M, M2, 8, 90, M2, M2, M, M, M, M, M4, -/*15*/89, M, M, M3, M2, M3, M3, M, M, M, M3, M2, M3, M2, M, M3, -/*16*/86, M, M2, M3, M2, M, M3, M, M2, M, M3, M, M3, M, M, M3, -/*17*/M, M, M3, M2, M3, M2, M4, M, 60, M, M2, M3, M4, M, M, M2, -/*18*/M2, 88, 85, M2, 84, M, M2, 55, 81, M2, M2, M3, M2, M3, M3, M4, -/*19*/77, M, M, M, M2, M3, M, M, M2, M3, M3, M4, M3, M2, M, M, -/*1a*/74, M, M2, M3, M, M, M3, M, M, M, M3, M, M3, M, M4, M3, -/*1b*/M2, 70, 107, M4, 65, M2, M2, M, 127, M, M, M, M2, M3, M3, M, -/*1c*/80, M2, M2, 72, M, 119, 118, M, M2, 126, 76, M, 125, M, M4, M3, -/*1d*/M2, 115, 124, M, 75, M, M, M3, 61, M, M4, M, M4, M, M, M, -/*1e*/M, 123, 122, M4, 121, M4, M, M3, 117, M2, M2, M3, M4, M3, M, M, -/*1f*/111, M, M, M, M4, M3, M3, M, M, M, M3, M, M3, M2, M, M -}; -static unsigned char cheetah_mtag_syntab[] = { - NONE, MTC0, - MTC1, NONE, - MTC2, NONE, - NONE, MT0, - MTC3, NONE, - NONE, MT1, - NONE, MT2, - NONE, NONE -}; - -/* Return the highest priority error conditon mentioned. */ -static inline unsigned long cheetah_get_hipri(unsigned long afsr) -{ - unsigned long tmp = 0; - int i; - - for (i = 0; cheetah_error_table[i].mask; i++) { - if ((tmp = (afsr & cheetah_error_table[i].mask)) != 0UL) - return tmp; - } - return tmp; -} - -static const char *cheetah_get_string(unsigned long bit) -{ - int i; - - for (i = 0; cheetah_error_table[i].mask; i++) { - if ((bit & cheetah_error_table[i].mask) != 0UL) - return cheetah_error_table[i].name; - } - return "???"; -} - -static void cheetah_log_errors(struct pt_regs *regs, struct cheetah_err_info *info, - unsigned long afsr, unsigned long afar, int recoverable) -{ - unsigned long hipri; - char unum[256]; - - printk("%s" "ERROR(%d): Cheetah error trap taken afsr[%016lx] afar[%016lx] TL1(%d)\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - afsr, afar, - (afsr & CHAFSR_TL1) ? 1 : 0); - printk("%s" "ERROR(%d): TPC[%lx] TNPC[%lx] O7[%lx] TSTATE[%lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate); - printk("%s" "ERROR(%d): ", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id()); - printk("TPC<%pS>\n", (void *) regs->tpc); - printk("%s" "ERROR(%d): M_SYND(%lx), E_SYND(%lx)%s%s\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT, - (afsr & CHAFSR_E_SYNDROME) >> CHAFSR_E_SYNDROME_SHIFT, - (afsr & CHAFSR_ME) ? ", Multiple Errors" : "", - (afsr & CHAFSR_PRIV) ? ", Privileged" : ""); - hipri = cheetah_get_hipri(afsr); - printk("%s" "ERROR(%d): Highest priority error (%016lx) \"%s\"\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - hipri, cheetah_get_string(hipri)); - - /* Try to get unumber if relevant. */ -#define ESYND_ERRORS (CHAFSR_IVC | CHAFSR_IVU | \ - CHAFSR_CPC | CHAFSR_CPU | \ - CHAFSR_UE | CHAFSR_CE | \ - CHAFSR_EDC | CHAFSR_EDU | \ - CHAFSR_UCC | CHAFSR_UCU | \ - CHAFSR_WDU | CHAFSR_WDC) -#define MSYND_ERRORS (CHAFSR_EMC | CHAFSR_EMU) - if (afsr & ESYND_ERRORS) { - int syndrome; - int ret; - - syndrome = (afsr & CHAFSR_E_SYNDROME) >> CHAFSR_E_SYNDROME_SHIFT; - syndrome = cheetah_ecc_syntab[syndrome]; - ret = sprintf_dimm(syndrome, afar, unum, sizeof(unum)); - if (ret != -1) - printk("%s" "ERROR(%d): AFAR E-syndrome [%s]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), - smp_processor_id(), unum); - } else if (afsr & MSYND_ERRORS) { - int syndrome; - int ret; - - syndrome = (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT; - syndrome = cheetah_mtag_syntab[syndrome]; - ret = sprintf_dimm(syndrome, afar, unum, sizeof(unum)); - if (ret != -1) - printk("%s" "ERROR(%d): AFAR M-syndrome [%s]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), - smp_processor_id(), unum); - } - - /* Now dump the cache snapshots. */ - printk("%s" "ERROR(%d): D-cache idx[%x] tag[%016lx] utag[%016lx] stag[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - (int) info->dcache_index, - info->dcache_tag, - info->dcache_utag, - info->dcache_stag); - printk("%s" "ERROR(%d): D-cache data0[%016lx] data1[%016lx] data2[%016lx] data3[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - info->dcache_data[0], - info->dcache_data[1], - info->dcache_data[2], - info->dcache_data[3]); - printk("%s" "ERROR(%d): I-cache idx[%x] tag[%016lx] utag[%016lx] stag[%016lx] " - "u[%016lx] l[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - (int) info->icache_index, - info->icache_tag, - info->icache_utag, - info->icache_stag, - info->icache_upper, - info->icache_lower); - printk("%s" "ERROR(%d): I-cache INSN0[%016lx] INSN1[%016lx] INSN2[%016lx] INSN3[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - info->icache_data[0], - info->icache_data[1], - info->icache_data[2], - info->icache_data[3]); - printk("%s" "ERROR(%d): I-cache INSN4[%016lx] INSN5[%016lx] INSN6[%016lx] INSN7[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - info->icache_data[4], - info->icache_data[5], - info->icache_data[6], - info->icache_data[7]); - printk("%s" "ERROR(%d): E-cache idx[%x] tag[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - (int) info->ecache_index, info->ecache_tag); - printk("%s" "ERROR(%d): E-cache data0[%016lx] data1[%016lx] data2[%016lx] data3[%016lx]\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - info->ecache_data[0], - info->ecache_data[1], - info->ecache_data[2], - info->ecache_data[3]); - - afsr = (afsr & ~hipri) & cheetah_afsr_errors; - while (afsr != 0UL) { - unsigned long bit = cheetah_get_hipri(afsr); - - printk("%s" "ERROR: Multiple-error (%016lx) \"%s\"\n", - (recoverable ? KERN_WARNING : KERN_CRIT), - bit, cheetah_get_string(bit)); - - afsr &= ~bit; - } - - if (!recoverable) - printk(KERN_CRIT "ERROR: This condition is not recoverable.\n"); -} - -static int cheetah_recheck_errors(struct cheetah_err_info *logp) -{ - unsigned long afsr, afar; - int ret = 0; - - __asm__ __volatile__("ldxa [%%g0] %1, %0\n\t" - : "=r" (afsr) - : "i" (ASI_AFSR)); - if ((afsr & cheetah_afsr_errors) != 0) { - if (logp != NULL) { - __asm__ __volatile__("ldxa [%%g0] %1, %0\n\t" - : "=r" (afar) - : "i" (ASI_AFAR)); - logp->afsr = afsr; - logp->afar = afar; - } - ret = 1; - } - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync\n\t" - : : "r" (afsr), "i" (ASI_AFSR)); - - return ret; -} - -void cheetah_fecc_handler(struct pt_regs *regs, unsigned long afsr, unsigned long afar) -{ - struct cheetah_err_info local_snapshot, *p; - int recoverable; - - /* Flush E-cache */ - cheetah_flush_ecache(); - - p = cheetah_get_error_log(afsr); - if (!p) { - prom_printf("ERROR: Early Fast-ECC error afsr[%016lx] afar[%016lx]\n", - afsr, afar); - prom_printf("ERROR: CPU(%d) TPC[%016lx] TNPC[%016lx] TSTATE[%016lx]\n", - smp_processor_id(), regs->tpc, regs->tnpc, regs->tstate); - prom_halt(); - } - - /* Grab snapshot of logged error. */ - memcpy(&local_snapshot, p, sizeof(local_snapshot)); - - /* If the current trap snapshot does not match what the - * trap handler passed along into our args, big trouble. - * In such a case, mark the local copy as invalid. - * - * Else, it matches and we mark the afsr in the non-local - * copy as invalid so we may log new error traps there. - */ - if (p->afsr != afsr || p->afar != afar) - local_snapshot.afsr = CHAFSR_INVALID; - else - p->afsr = CHAFSR_INVALID; - - cheetah_flush_icache(); - cheetah_flush_dcache(); - - /* Re-enable I-cache/D-cache */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_DCU_CONTROL_REG), - "i" (DCU_DC | DCU_IC) - : "g1"); - - /* Re-enable error reporting */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_ESTATE_ERROR_EN), - "i" (ESTATE_ERROR_NCEEN | ESTATE_ERROR_CEEN) - : "g1"); - - /* Decide if we can continue after handling this trap and - * logging the error. - */ - recoverable = 1; - if (afsr & (CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP)) - recoverable = 0; - - /* Re-check AFSR/AFAR. What we are looking for here is whether a new - * error was logged while we had error reporting traps disabled. - */ - if (cheetah_recheck_errors(&local_snapshot)) { - unsigned long new_afsr = local_snapshot.afsr; - - /* If we got a new asynchronous error, die... */ - if (new_afsr & (CHAFSR_EMU | CHAFSR_EDU | - CHAFSR_WDU | CHAFSR_CPU | - CHAFSR_IVU | CHAFSR_UE | - CHAFSR_BERR | CHAFSR_TO)) - recoverable = 0; - } - - /* Log errors. */ - cheetah_log_errors(regs, &local_snapshot, afsr, afar, recoverable); - - if (!recoverable) - panic("Irrecoverable Fast-ECC error trap.\n"); - - /* Flush E-cache to kick the error trap handlers out. */ - cheetah_flush_ecache(); -} - -/* Try to fix a correctable error by pushing the line out from - * the E-cache. Recheck error reporting registers to see if the - * problem is intermittent. - */ -static int cheetah_fix_ce(unsigned long physaddr) -{ - unsigned long orig_estate; - unsigned long alias1, alias2; - int ret; - - /* Make sure correctable error traps are disabled. */ - __asm__ __volatile__("ldxa [%%g0] %2, %0\n\t" - "andn %0, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %2\n\t" - "membar #Sync" - : "=&r" (orig_estate) - : "i" (ESTATE_ERROR_CEEN), - "i" (ASI_ESTATE_ERROR_EN) - : "g1"); - - /* We calculate alias addresses that will force the - * cache line in question out of the E-cache. Then - * we bring it back in with an atomic instruction so - * that we get it in some modified/exclusive state, - * then we displace it again to try and get proper ECC - * pushed back into the system. - */ - physaddr &= ~(8UL - 1UL); - alias1 = (ecache_flush_physbase + - (physaddr & ((ecache_flush_size >> 1) - 1))); - alias2 = alias1 + (ecache_flush_size >> 1); - __asm__ __volatile__("ldxa [%0] %3, %%g0\n\t" - "ldxa [%1] %3, %%g0\n\t" - "casxa [%2] %3, %%g0, %%g0\n\t" - "membar #StoreLoad | #StoreStore\n\t" - "ldxa [%0] %3, %%g0\n\t" - "ldxa [%1] %3, %%g0\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (alias1), "r" (alias2), - "r" (physaddr), "i" (ASI_PHYS_USE_EC)); - - /* Did that trigger another error? */ - if (cheetah_recheck_errors(NULL)) { - /* Try one more time. */ - __asm__ __volatile__("ldxa [%0] %1, %%g0\n\t" - "membar #Sync" - : : "r" (physaddr), "i" (ASI_PHYS_USE_EC)); - if (cheetah_recheck_errors(NULL)) - ret = 2; - else - ret = 1; - } else { - /* No new error, intermittent problem. */ - ret = 0; - } - - /* Restore error enables. */ - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : : "r" (orig_estate), "i" (ASI_ESTATE_ERROR_EN)); - - return ret; -} - -/* Return non-zero if PADDR is a valid physical memory address. */ -static int cheetah_check_main_memory(unsigned long paddr) -{ - unsigned long vaddr = PAGE_OFFSET + paddr; - - if (vaddr > (unsigned long) high_memory) - return 0; - - return kern_addr_valid(vaddr); -} - -void cheetah_cee_handler(struct pt_regs *regs, unsigned long afsr, unsigned long afar) -{ - struct cheetah_err_info local_snapshot, *p; - int recoverable, is_memory; - - p = cheetah_get_error_log(afsr); - if (!p) { - prom_printf("ERROR: Early CEE error afsr[%016lx] afar[%016lx]\n", - afsr, afar); - prom_printf("ERROR: CPU(%d) TPC[%016lx] TNPC[%016lx] TSTATE[%016lx]\n", - smp_processor_id(), regs->tpc, regs->tnpc, regs->tstate); - prom_halt(); - } - - /* Grab snapshot of logged error. */ - memcpy(&local_snapshot, p, sizeof(local_snapshot)); - - /* If the current trap snapshot does not match what the - * trap handler passed along into our args, big trouble. - * In such a case, mark the local copy as invalid. - * - * Else, it matches and we mark the afsr in the non-local - * copy as invalid so we may log new error traps there. - */ - if (p->afsr != afsr || p->afar != afar) - local_snapshot.afsr = CHAFSR_INVALID; - else - p->afsr = CHAFSR_INVALID; - - is_memory = cheetah_check_main_memory(afar); - - if (is_memory && (afsr & CHAFSR_CE) != 0UL) { - /* XXX Might want to log the results of this operation - * XXX somewhere... -DaveM - */ - cheetah_fix_ce(afar); - } - - { - int flush_all, flush_line; - - flush_all = flush_line = 0; - if ((afsr & CHAFSR_EDC) != 0UL) { - if ((afsr & cheetah_afsr_errors) == CHAFSR_EDC) - flush_line = 1; - else - flush_all = 1; - } else if ((afsr & CHAFSR_CPC) != 0UL) { - if ((afsr & cheetah_afsr_errors) == CHAFSR_CPC) - flush_line = 1; - else - flush_all = 1; - } - - /* Trap handler only disabled I-cache, flush it. */ - cheetah_flush_icache(); - - /* Re-enable I-cache */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_DCU_CONTROL_REG), - "i" (DCU_IC) - : "g1"); - - if (flush_all) - cheetah_flush_ecache(); - else if (flush_line) - cheetah_flush_ecache_line(afar); - } - - /* Re-enable error reporting */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_ESTATE_ERROR_EN), - "i" (ESTATE_ERROR_CEEN) - : "g1"); - - /* Decide if we can continue after handling this trap and - * logging the error. - */ - recoverable = 1; - if (afsr & (CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP)) - recoverable = 0; - - /* Re-check AFSR/AFAR */ - (void) cheetah_recheck_errors(&local_snapshot); - - /* Log errors. */ - cheetah_log_errors(regs, &local_snapshot, afsr, afar, recoverable); - - if (!recoverable) - panic("Irrecoverable Correctable-ECC error trap.\n"); -} - -void cheetah_deferred_handler(struct pt_regs *regs, unsigned long afsr, unsigned long afar) -{ - struct cheetah_err_info local_snapshot, *p; - int recoverable, is_memory; - -#ifdef CONFIG_PCI - /* Check for the special PCI poke sequence. */ - if (pci_poke_in_progress && pci_poke_cpu == smp_processor_id()) { - cheetah_flush_icache(); - cheetah_flush_dcache(); - - /* Re-enable I-cache/D-cache */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_DCU_CONTROL_REG), - "i" (DCU_DC | DCU_IC) - : "g1"); - - /* Re-enable error reporting */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_ESTATE_ERROR_EN), - "i" (ESTATE_ERROR_NCEEN | ESTATE_ERROR_CEEN) - : "g1"); - - (void) cheetah_recheck_errors(NULL); - - pci_poke_faulted = 1; - regs->tpc += 4; - regs->tnpc = regs->tpc + 4; - return; - } -#endif - - p = cheetah_get_error_log(afsr); - if (!p) { - prom_printf("ERROR: Early deferred error afsr[%016lx] afar[%016lx]\n", - afsr, afar); - prom_printf("ERROR: CPU(%d) TPC[%016lx] TNPC[%016lx] TSTATE[%016lx]\n", - smp_processor_id(), regs->tpc, regs->tnpc, regs->tstate); - prom_halt(); - } - - /* Grab snapshot of logged error. */ - memcpy(&local_snapshot, p, sizeof(local_snapshot)); - - /* If the current trap snapshot does not match what the - * trap handler passed along into our args, big trouble. - * In such a case, mark the local copy as invalid. - * - * Else, it matches and we mark the afsr in the non-local - * copy as invalid so we may log new error traps there. - */ - if (p->afsr != afsr || p->afar != afar) - local_snapshot.afsr = CHAFSR_INVALID; - else - p->afsr = CHAFSR_INVALID; - - is_memory = cheetah_check_main_memory(afar); - - { - int flush_all, flush_line; - - flush_all = flush_line = 0; - if ((afsr & CHAFSR_EDU) != 0UL) { - if ((afsr & cheetah_afsr_errors) == CHAFSR_EDU) - flush_line = 1; - else - flush_all = 1; - } else if ((afsr & CHAFSR_BERR) != 0UL) { - if ((afsr & cheetah_afsr_errors) == CHAFSR_BERR) - flush_line = 1; - else - flush_all = 1; - } - - cheetah_flush_icache(); - cheetah_flush_dcache(); - - /* Re-enable I/D caches */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_DCU_CONTROL_REG), - "i" (DCU_IC | DCU_DC) - : "g1"); - - if (flush_all) - cheetah_flush_ecache(); - else if (flush_line) - cheetah_flush_ecache_line(afar); - } - - /* Re-enable error reporting */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_ESTATE_ERROR_EN), - "i" (ESTATE_ERROR_NCEEN | ESTATE_ERROR_CEEN) - : "g1"); - - /* Decide if we can continue after handling this trap and - * logging the error. - */ - recoverable = 1; - if (afsr & (CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP)) - recoverable = 0; - - /* Re-check AFSR/AFAR. What we are looking for here is whether a new - * error was logged while we had error reporting traps disabled. - */ - if (cheetah_recheck_errors(&local_snapshot)) { - unsigned long new_afsr = local_snapshot.afsr; - - /* If we got a new asynchronous error, die... */ - if (new_afsr & (CHAFSR_EMU | CHAFSR_EDU | - CHAFSR_WDU | CHAFSR_CPU | - CHAFSR_IVU | CHAFSR_UE | - CHAFSR_BERR | CHAFSR_TO)) - recoverable = 0; - } - - /* Log errors. */ - cheetah_log_errors(regs, &local_snapshot, afsr, afar, recoverable); - - /* "Recoverable" here means we try to yank the page from ever - * being newly used again. This depends upon a few things: - * 1) Must be main memory, and AFAR must be valid. - * 2) If we trapped from user, OK. - * 3) Else, if we trapped from kernel we must find exception - * table entry (ie. we have to have been accessing user - * space). - * - * If AFAR is not in main memory, or we trapped from kernel - * and cannot find an exception table entry, it is unacceptable - * to try and continue. - */ - if (recoverable && is_memory) { - if ((regs->tstate & TSTATE_PRIV) == 0UL) { - /* OK, usermode access. */ - recoverable = 1; - } else { - const struct exception_table_entry *entry; - - entry = search_exception_tables(regs->tpc); - if (entry) { - /* OK, kernel access to userspace. */ - recoverable = 1; - - } else { - /* BAD, privileged state is corrupted. */ - recoverable = 0; - } - - if (recoverable) { - if (pfn_valid(afar >> PAGE_SHIFT)) - get_page(pfn_to_page(afar >> PAGE_SHIFT)); - else - recoverable = 0; - - /* Only perform fixup if we still have a - * recoverable condition. - */ - if (recoverable) { - regs->tpc = entry->fixup; - regs->tnpc = regs->tpc + 4; - } - } - } - } else { - recoverable = 0; - } - - if (!recoverable) - panic("Irrecoverable deferred error trap.\n"); -} - -/* Handle a D/I cache parity error trap. TYPE is encoded as: - * - * Bit0: 0=dcache,1=icache - * Bit1: 0=recoverable,1=unrecoverable - * - * The hardware has disabled both the I-cache and D-cache in - * the %dcr register. - */ -void cheetah_plus_parity_error(int type, struct pt_regs *regs) -{ - if (type & 0x1) - __cheetah_flush_icache(); - else - cheetah_plus_zap_dcache_parity(); - cheetah_flush_dcache(); - - /* Re-enable I-cache/D-cache */ - __asm__ __volatile__("ldxa [%%g0] %0, %%g1\n\t" - "or %%g1, %1, %%g1\n\t" - "stxa %%g1, [%%g0] %0\n\t" - "membar #Sync" - : /* no outputs */ - : "i" (ASI_DCU_CONTROL_REG), - "i" (DCU_DC | DCU_IC) - : "g1"); - - if (type & 0x2) { - printk(KERN_EMERG "CPU[%d]: Cheetah+ %c-cache parity error at TPC[%016lx]\n", - smp_processor_id(), - (type & 0x1) ? 'I' : 'D', - regs->tpc); - printk(KERN_EMERG "TPC<%pS>\n", (void *) regs->tpc); - panic("Irrecoverable Cheetah+ parity error."); - } - - printk(KERN_WARNING "CPU[%d]: Cheetah+ %c-cache parity error at TPC[%016lx]\n", - smp_processor_id(), - (type & 0x1) ? 'I' : 'D', - regs->tpc); - printk(KERN_WARNING "TPC<%pS>\n", (void *) regs->tpc); -} - -struct sun4v_error_entry { - u64 err_handle; - u64 err_stick; - - u32 err_type; -#define SUN4V_ERR_TYPE_UNDEFINED 0 -#define SUN4V_ERR_TYPE_UNCORRECTED_RES 1 -#define SUN4V_ERR_TYPE_PRECISE_NONRES 2 -#define SUN4V_ERR_TYPE_DEFERRED_NONRES 3 -#define SUN4V_ERR_TYPE_WARNING_RES 4 - - u32 err_attrs; -#define SUN4V_ERR_ATTRS_PROCESSOR 0x00000001 -#define SUN4V_ERR_ATTRS_MEMORY 0x00000002 -#define SUN4V_ERR_ATTRS_PIO 0x00000004 -#define SUN4V_ERR_ATTRS_INT_REGISTERS 0x00000008 -#define SUN4V_ERR_ATTRS_FPU_REGISTERS 0x00000010 -#define SUN4V_ERR_ATTRS_USER_MODE 0x01000000 -#define SUN4V_ERR_ATTRS_PRIV_MODE 0x02000000 -#define SUN4V_ERR_ATTRS_RES_QUEUE_FULL 0x80000000 - - u64 err_raddr; - u32 err_size; - u16 err_cpu; - u16 err_pad; -}; - -static atomic_t sun4v_resum_oflow_cnt = ATOMIC_INIT(0); -static atomic_t sun4v_nonresum_oflow_cnt = ATOMIC_INIT(0); - -static const char *sun4v_err_type_to_str(u32 type) -{ - switch (type) { - case SUN4V_ERR_TYPE_UNDEFINED: - return "undefined"; - case SUN4V_ERR_TYPE_UNCORRECTED_RES: - return "uncorrected resumable"; - case SUN4V_ERR_TYPE_PRECISE_NONRES: - return "precise nonresumable"; - case SUN4V_ERR_TYPE_DEFERRED_NONRES: - return "deferred nonresumable"; - case SUN4V_ERR_TYPE_WARNING_RES: - return "warning resumable"; - default: - return "unknown"; - }; -} - -static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent, int cpu, const char *pfx, atomic_t *ocnt) -{ - int cnt; - - printk("%s: Reporting on cpu %d\n", pfx, cpu); - printk("%s: err_handle[%lx] err_stick[%lx] err_type[%08x:%s]\n", - pfx, - ent->err_handle, ent->err_stick, - ent->err_type, - sun4v_err_type_to_str(ent->err_type)); - printk("%s: err_attrs[%08x:%s %s %s %s %s %s %s %s]\n", - pfx, - ent->err_attrs, - ((ent->err_attrs & SUN4V_ERR_ATTRS_PROCESSOR) ? - "processor" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_MEMORY) ? - "memory" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_PIO) ? - "pio" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_INT_REGISTERS) ? - "integer-regs" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_FPU_REGISTERS) ? - "fpu-regs" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_USER_MODE) ? - "user" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_PRIV_MODE) ? - "privileged" : ""), - ((ent->err_attrs & SUN4V_ERR_ATTRS_RES_QUEUE_FULL) ? - "queue-full" : "")); - printk("%s: err_raddr[%016lx] err_size[%u] err_cpu[%u]\n", - pfx, - ent->err_raddr, ent->err_size, ent->err_cpu); - - show_regs(regs); - - if ((cnt = atomic_read(ocnt)) != 0) { - atomic_set(ocnt, 0); - wmb(); - printk("%s: Queue overflowed %d times.\n", - pfx, cnt); - } -} - -/* We run with %pil set to 15 and PSTATE_IE enabled in %pstate. - * Log the event and clear the first word of the entry. - */ -void sun4v_resum_error(struct pt_regs *regs, unsigned long offset) -{ - struct sun4v_error_entry *ent, local_copy; - struct trap_per_cpu *tb; - unsigned long paddr; - int cpu; - - cpu = get_cpu(); - - tb = &trap_block[cpu]; - paddr = tb->resum_kernel_buf_pa + offset; - ent = __va(paddr); - - memcpy(&local_copy, ent, sizeof(struct sun4v_error_entry)); - - /* We have a local copy now, so release the entry. */ - ent->err_handle = 0; - wmb(); - - put_cpu(); - - if (ent->err_type == SUN4V_ERR_TYPE_WARNING_RES) { - /* If err_type is 0x4, it's a powerdown request. Do - * not do the usual resumable error log because that - * makes it look like some abnormal error. - */ - printk(KERN_INFO "Power down request...\n"); - kill_cad_pid(SIGINT, 1); - return; - } - - sun4v_log_error(regs, &local_copy, cpu, - KERN_ERR "RESUMABLE ERROR", - &sun4v_resum_oflow_cnt); -} - -/* If we try to printk() we'll probably make matters worse, by trying - * to retake locks this cpu already holds or causing more errors. So - * just bump a counter, and we'll report these counter bumps above. - */ -void sun4v_resum_overflow(struct pt_regs *regs) -{ - atomic_inc(&sun4v_resum_oflow_cnt); -} - -/* We run with %pil set to 15 and PSTATE_IE enabled in %pstate. - * Log the event, clear the first word of the entry, and die. - */ -void sun4v_nonresum_error(struct pt_regs *regs, unsigned long offset) -{ - struct sun4v_error_entry *ent, local_copy; - struct trap_per_cpu *tb; - unsigned long paddr; - int cpu; - - cpu = get_cpu(); - - tb = &trap_block[cpu]; - paddr = tb->nonresum_kernel_buf_pa + offset; - ent = __va(paddr); - - memcpy(&local_copy, ent, sizeof(struct sun4v_error_entry)); - - /* We have a local copy now, so release the entry. */ - ent->err_handle = 0; - wmb(); - - put_cpu(); - -#ifdef CONFIG_PCI - /* Check for the special PCI poke sequence. */ - if (pci_poke_in_progress && pci_poke_cpu == cpu) { - pci_poke_faulted = 1; - regs->tpc += 4; - regs->tnpc = regs->tpc + 4; - return; - } -#endif - - sun4v_log_error(regs, &local_copy, cpu, - KERN_EMERG "NON-RESUMABLE ERROR", - &sun4v_nonresum_oflow_cnt); - - panic("Non-resumable error."); -} - -/* If we try to printk() we'll probably make matters worse, by trying - * to retake locks this cpu already holds or causing more errors. So - * just bump a counter, and we'll report these counter bumps above. - */ -void sun4v_nonresum_overflow(struct pt_regs *regs) -{ - /* XXX Actually even this can make not that much sense. Perhaps - * XXX we should just pull the plug and panic directly from here? - */ - atomic_inc(&sun4v_nonresum_oflow_cnt); -} - -unsigned long sun4v_err_itlb_vaddr; -unsigned long sun4v_err_itlb_ctx; -unsigned long sun4v_err_itlb_pte; -unsigned long sun4v_err_itlb_error; - -void sun4v_itlb_error_report(struct pt_regs *regs, int tl) -{ - if (tl > 1) - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - - printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n", - regs->tpc, tl); - printk(KERN_EMERG "SUN4V-ITLB: TPC<%pS>\n", (void *) regs->tpc); - printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]); - printk(KERN_EMERG "SUN4V-ITLB: O7<%pS>\n", - (void *) regs->u_regs[UREG_I7]); - printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] " - "pte[%lx] error[%lx]\n", - sun4v_err_itlb_vaddr, sun4v_err_itlb_ctx, - sun4v_err_itlb_pte, sun4v_err_itlb_error); - - prom_halt(); -} - -unsigned long sun4v_err_dtlb_vaddr; -unsigned long sun4v_err_dtlb_ctx; -unsigned long sun4v_err_dtlb_pte; -unsigned long sun4v_err_dtlb_error; - -void sun4v_dtlb_error_report(struct pt_regs *regs, int tl) -{ - if (tl > 1) - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - - printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n", - regs->tpc, tl); - printk(KERN_EMERG "SUN4V-DTLB: TPC<%pS>\n", (void *) regs->tpc); - printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]); - printk(KERN_EMERG "SUN4V-DTLB: O7<%pS>\n", - (void *) regs->u_regs[UREG_I7]); - printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] " - "pte[%lx] error[%lx]\n", - sun4v_err_dtlb_vaddr, sun4v_err_dtlb_ctx, - sun4v_err_dtlb_pte, sun4v_err_dtlb_error); - - prom_halt(); -} - -void hypervisor_tlbop_error(unsigned long err, unsigned long op) -{ - printk(KERN_CRIT "SUN4V: TLB hv call error %lu for op %lu\n", - err, op); -} - -void hypervisor_tlbop_error_xcall(unsigned long err, unsigned long op) -{ - printk(KERN_CRIT "SUN4V: XCALL TLB hv call error %lu for op %lu\n", - err, op); -} - -void do_fpe_common(struct pt_regs *regs) -{ - if (regs->tstate & TSTATE_PRIV) { - regs->tpc = regs->tnpc; - regs->tnpc += 4; - } else { - unsigned long fsr = current_thread_info()->xfsr[0]; - siginfo_t info; - - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGFPE; - info.si_errno = 0; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = 0; - info.si_code = __SI_FAULT; - if ((fsr & 0x1c000) == (1 << 14)) { - if (fsr & 0x10) - info.si_code = FPE_FLTINV; - else if (fsr & 0x08) - info.si_code = FPE_FLTOVF; - else if (fsr & 0x04) - info.si_code = FPE_FLTUND; - else if (fsr & 0x02) - info.si_code = FPE_FLTDIV; - else if (fsr & 0x01) - info.si_code = FPE_FLTRES; - } - force_sig_info(SIGFPE, &info, current); - } -} - -void do_fpieee(struct pt_regs *regs) -{ - if (notify_die(DIE_TRAP, "fpu exception ieee", regs, - 0, 0x24, SIGFPE) == NOTIFY_STOP) - return; - - do_fpe_common(regs); -} - -extern int do_mathemu(struct pt_regs *, struct fpustate *); - -void do_fpother(struct pt_regs *regs) -{ - struct fpustate *f = FPUSTATE; - int ret = 0; - - if (notify_die(DIE_TRAP, "fpu exception other", regs, - 0, 0x25, SIGFPE) == NOTIFY_STOP) - return; - - switch ((current_thread_info()->xfsr[0] & 0x1c000)) { - case (2 << 14): /* unfinished_FPop */ - case (3 << 14): /* unimplemented_FPop */ - ret = do_mathemu(regs, f); - break; - } - if (ret) - return; - do_fpe_common(regs); -} - -void do_tof(struct pt_regs *regs) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "tagged arithmetic overflow", regs, - 0, 0x26, SIGEMT) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) - die_if_kernel("Penguin overflow trap from kernel mode", regs); - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGEMT; - info.si_errno = 0; - info.si_code = EMT_TAGOVF; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = 0; - force_sig_info(SIGEMT, &info, current); -} - -void do_div0(struct pt_regs *regs) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "integer division by zero", regs, - 0, 0x28, SIGFPE) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) - die_if_kernel("TL0: Kernel divide by zero.", regs); - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGFPE; - info.si_errno = 0; - info.si_code = FPE_INTDIV; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = 0; - force_sig_info(SIGFPE, &info, current); -} - -static void instruction_dump(unsigned int *pc) -{ - int i; - - if ((((unsigned long) pc) & 3)) - return; - - printk("Instruction DUMP:"); - for (i = -3; i < 6; i++) - printk("%c%08x%c",i?' ':'<',pc[i],i?' ':'>'); - printk("\n"); -} - -static void user_instruction_dump(unsigned int __user *pc) -{ - int i; - unsigned int buf[9]; - - if ((((unsigned long) pc) & 3)) - return; - - if (copy_from_user(buf, pc - 3, sizeof(buf))) - return; - - printk("Instruction DUMP:"); - for (i = 0; i < 9; i++) - printk("%c%08x%c",i==3?' ':'<',buf[i],i==3?' ':'>'); - printk("\n"); -} - -void show_stack(struct task_struct *tsk, unsigned long *_ksp) -{ - unsigned long fp, thread_base, ksp; - struct thread_info *tp; - int count = 0; - - ksp = (unsigned long) _ksp; - if (!tsk) - tsk = current; - tp = task_thread_info(tsk); - if (ksp == 0UL) { - if (tsk == current) - asm("mov %%fp, %0" : "=r" (ksp)); - else - ksp = tp->ksp; - } - if (tp == current_thread_info()) - flushw_all(); - - fp = ksp + STACK_BIAS; - thread_base = (unsigned long) tp; - - printk("Call Trace:\n"); - do { - struct sparc_stackf *sf; - struct pt_regs *regs; - unsigned long pc; - - if (!kstack_valid(tp, fp)) - break; - sf = (struct sparc_stackf *) fp; - regs = (struct pt_regs *) (sf + 1); - - if (kstack_is_trap_frame(tp, regs)) { - if (!(regs->tstate & TSTATE_PRIV)) - break; - pc = regs->tpc; - fp = regs->u_regs[UREG_I6] + STACK_BIAS; - } else { - pc = sf->callers_pc; - fp = (unsigned long)sf->fp + STACK_BIAS; - } - - printk(" [%016lx] %pS\n", pc, (void *) pc); - } while (++count < 16); -} - -void dump_stack(void) -{ - show_stack(current, NULL); -} - -EXPORT_SYMBOL(dump_stack); - -static inline int is_kernel_stack(struct task_struct *task, - struct reg_window *rw) -{ - unsigned long rw_addr = (unsigned long) rw; - unsigned long thread_base, thread_end; - - if (rw_addr < PAGE_OFFSET) { - if (task != &init_task) - return 0; - } - - thread_base = (unsigned long) task_stack_page(task); - thread_end = thread_base + sizeof(union thread_union); - if (rw_addr >= thread_base && - rw_addr < thread_end && - !(rw_addr & 0x7UL)) - return 1; - - return 0; -} - -static inline struct reg_window *kernel_stack_up(struct reg_window *rw) -{ - unsigned long fp = rw->ins[6]; - - if (!fp) - return NULL; - - return (struct reg_window *) (fp + STACK_BIAS); -} - -void die_if_kernel(char *str, struct pt_regs *regs) -{ - static int die_counter; - int count = 0; - - /* Amuse the user. */ - printk( -" \\|/ ____ \\|/\n" -" \"@'/ .. \\`@\"\n" -" /_| \\__/ |_\\\n" -" \\__U_/\n"); - - printk("%s(%d): %s [#%d]\n", current->comm, task_pid_nr(current), str, ++die_counter); - notify_die(DIE_OOPS, str, regs, 0, 255, SIGSEGV); - __asm__ __volatile__("flushw"); - show_regs(regs); - add_taint(TAINT_DIE); - if (regs->tstate & TSTATE_PRIV) { - struct reg_window *rw = (struct reg_window *) - (regs->u_regs[UREG_FP] + STACK_BIAS); - - /* Stop the back trace when we hit userland or we - * find some badly aligned kernel stack. - */ - while (rw && - count++ < 30&& - is_kernel_stack(current, rw)) { - printk("Caller[%016lx]: %pS\n", rw->ins[7], - (void *) rw->ins[7]); - - rw = kernel_stack_up(rw); - } - instruction_dump ((unsigned int *) regs->tpc); - } else { - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - user_instruction_dump ((unsigned int __user *) regs->tpc); - } - if (regs->tstate & TSTATE_PRIV) - do_exit(SIGKILL); - do_exit(SIGSEGV); -} - -#define VIS_OPCODE_MASK ((0x3 << 30) | (0x3f << 19)) -#define VIS_OPCODE_VAL ((0x2 << 30) | (0x36 << 19)) - -extern int handle_popc(u32 insn, struct pt_regs *regs); -extern int handle_ldf_stq(u32 insn, struct pt_regs *regs); - -void do_illegal_instruction(struct pt_regs *regs) -{ - unsigned long pc = regs->tpc; - unsigned long tstate = regs->tstate; - u32 insn; - siginfo_t info; - - if (notify_die(DIE_TRAP, "illegal instruction", regs, - 0, 0x10, SIGILL) == NOTIFY_STOP) - return; - - if (tstate & TSTATE_PRIV) - die_if_kernel("Kernel illegal instruction", regs); - if (test_thread_flag(TIF_32BIT)) - pc = (u32)pc; - if (get_user(insn, (u32 __user *) pc) != -EFAULT) { - if ((insn & 0xc1ffc000) == 0x81700000) /* POPC */ { - if (handle_popc(insn, regs)) - return; - } else if ((insn & 0xc1580000) == 0xc1100000) /* LDQ/STQ */ { - if (handle_ldf_stq(insn, regs)) - return; - } else if (tlb_type == hypervisor) { - if ((insn & VIS_OPCODE_MASK) == VIS_OPCODE_VAL) { - if (!vis_emul(regs, insn)) - return; - } else { - struct fpustate *f = FPUSTATE; - - /* XXX maybe verify XFSR bits like - * XXX do_fpother() does? - */ - if (do_mathemu(regs, f)) - return; - } - } - } - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = ILL_ILLOPC; - info.si_addr = (void __user *)pc; - info.si_trapno = 0; - force_sig_info(SIGILL, &info, current); -} - -extern void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn); - -void mem_address_unaligned(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "memory address unaligned", regs, - 0, 0x34, SIGSEGV) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) { - kernel_unaligned_trap(regs, *((unsigned int *)regs->tpc)); - return; - } - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_ADRALN; - info.si_addr = (void __user *)sfar; - info.si_trapno = 0; - force_sig_info(SIGBUS, &info, current); -} - -void sun4v_do_mna(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "memory address unaligned", regs, - 0, 0x34, SIGSEGV) == NOTIFY_STOP) - return; - - if (regs->tstate & TSTATE_PRIV) { - kernel_unaligned_trap(regs, *((unsigned int *)regs->tpc)); - return; - } - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_ADRALN; - info.si_addr = (void __user *) addr; - info.si_trapno = 0; - force_sig_info(SIGBUS, &info, current); -} - -void do_privop(struct pt_regs *regs) -{ - siginfo_t info; - - if (notify_die(DIE_TRAP, "privileged operation", regs, - 0, 0x11, SIGILL) == NOTIFY_STOP) - return; - - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = ILL_PRVOPC; - info.si_addr = (void __user *)regs->tpc; - info.si_trapno = 0; - force_sig_info(SIGILL, &info, current); -} - -void do_privact(struct pt_regs *regs) -{ - do_privop(regs); -} - -/* Trap level 1 stuff or other traps we should never see... */ -void do_cee(struct pt_regs *regs) -{ - die_if_kernel("TL0: Cache Error Exception", regs); -} - -void do_cee_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Cache Error Exception", regs); -} - -void do_dae_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Data Access Exception", regs); -} - -void do_iae_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Instruction Access Exception", regs); -} - -void do_div0_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: DIV0 Exception", regs); -} - -void do_fpdis_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: FPU Disabled", regs); -} - -void do_fpieee_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: FPU IEEE Exception", regs); -} - -void do_fpother_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: FPU Other Exception", regs); -} - -void do_ill_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Illegal Instruction Exception", regs); -} - -void do_irq_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: IRQ Exception", regs); -} - -void do_lddfmna_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: LDDF Exception", regs); -} - -void do_stdfmna_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: STDF Exception", regs); -} - -void do_paw(struct pt_regs *regs) -{ - die_if_kernel("TL0: Phys Watchpoint Exception", regs); -} - -void do_paw_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Phys Watchpoint Exception", regs); -} - -void do_vaw(struct pt_regs *regs) -{ - die_if_kernel("TL0: Virt Watchpoint Exception", regs); -} - -void do_vaw_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Virt Watchpoint Exception", regs); -} - -void do_tof_tl1(struct pt_regs *regs) -{ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - die_if_kernel("TL1: Tag Overflow Exception", regs); -} - -void do_getpsr(struct pt_regs *regs) -{ - regs->u_regs[UREG_I0] = tstate_to_psr(regs->tstate); - regs->tpc = regs->tnpc; - regs->tnpc += 4; - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } -} - -struct trap_per_cpu trap_block[NR_CPUS]; - -/* This can get invoked before sched_init() so play it super safe - * and use hard_smp_processor_id(). - */ -void notrace init_cur_cpu_trap(struct thread_info *t) -{ - int cpu = hard_smp_processor_id(); - struct trap_per_cpu *p = &trap_block[cpu]; - - p->thread = t; - p->pgd_paddr = 0; -} - -extern void thread_info_offsets_are_bolixed_dave(void); -extern void trap_per_cpu_offsets_are_bolixed_dave(void); -extern void tsb_config_offsets_are_bolixed_dave(void); - -/* Only invoked on boot processor. */ -void __init trap_init(void) -{ - /* Compile time sanity check. */ - if (TI_TASK != offsetof(struct thread_info, task) || - TI_FLAGS != offsetof(struct thread_info, flags) || - TI_CPU != offsetof(struct thread_info, cpu) || - TI_FPSAVED != offsetof(struct thread_info, fpsaved) || - TI_KSP != offsetof(struct thread_info, ksp) || - TI_FAULT_ADDR != offsetof(struct thread_info, fault_address) || - TI_KREGS != offsetof(struct thread_info, kregs) || - TI_UTRAPS != offsetof(struct thread_info, utraps) || - TI_EXEC_DOMAIN != offsetof(struct thread_info, exec_domain) || - TI_REG_WINDOW != offsetof(struct thread_info, reg_window) || - TI_RWIN_SPTRS != offsetof(struct thread_info, rwbuf_stkptrs) || - TI_GSR != offsetof(struct thread_info, gsr) || - TI_XFSR != offsetof(struct thread_info, xfsr) || - TI_USER_CNTD0 != offsetof(struct thread_info, user_cntd0) || - TI_USER_CNTD1 != offsetof(struct thread_info, user_cntd1) || - TI_KERN_CNTD0 != offsetof(struct thread_info, kernel_cntd0) || - TI_KERN_CNTD1 != offsetof(struct thread_info, kernel_cntd1) || - TI_PCR != offsetof(struct thread_info, pcr_reg) || - TI_PRE_COUNT != offsetof(struct thread_info, preempt_count) || - TI_NEW_CHILD != offsetof(struct thread_info, new_child) || - TI_SYS_NOERROR != offsetof(struct thread_info, syscall_noerror) || - TI_RESTART_BLOCK != offsetof(struct thread_info, restart_block) || - TI_KUNA_REGS != offsetof(struct thread_info, kern_una_regs) || - TI_KUNA_INSN != offsetof(struct thread_info, kern_una_insn) || - TI_FPREGS != offsetof(struct thread_info, fpregs) || - (TI_FPREGS & (64 - 1))) - thread_info_offsets_are_bolixed_dave(); - - if (TRAP_PER_CPU_THREAD != offsetof(struct trap_per_cpu, thread) || - (TRAP_PER_CPU_PGD_PADDR != - offsetof(struct trap_per_cpu, pgd_paddr)) || - (TRAP_PER_CPU_CPU_MONDO_PA != - offsetof(struct trap_per_cpu, cpu_mondo_pa)) || - (TRAP_PER_CPU_DEV_MONDO_PA != - offsetof(struct trap_per_cpu, dev_mondo_pa)) || - (TRAP_PER_CPU_RESUM_MONDO_PA != - offsetof(struct trap_per_cpu, resum_mondo_pa)) || - (TRAP_PER_CPU_RESUM_KBUF_PA != - offsetof(struct trap_per_cpu, resum_kernel_buf_pa)) || - (TRAP_PER_CPU_NONRESUM_MONDO_PA != - offsetof(struct trap_per_cpu, nonresum_mondo_pa)) || - (TRAP_PER_CPU_NONRESUM_KBUF_PA != - offsetof(struct trap_per_cpu, nonresum_kernel_buf_pa)) || - (TRAP_PER_CPU_FAULT_INFO != - offsetof(struct trap_per_cpu, fault_info)) || - (TRAP_PER_CPU_CPU_MONDO_BLOCK_PA != - offsetof(struct trap_per_cpu, cpu_mondo_block_pa)) || - (TRAP_PER_CPU_CPU_LIST_PA != - offsetof(struct trap_per_cpu, cpu_list_pa)) || - (TRAP_PER_CPU_TSB_HUGE != - offsetof(struct trap_per_cpu, tsb_huge)) || - (TRAP_PER_CPU_TSB_HUGE_TEMP != - offsetof(struct trap_per_cpu, tsb_huge_temp)) || - (TRAP_PER_CPU_IRQ_WORKLIST_PA != - offsetof(struct trap_per_cpu, irq_worklist_pa)) || - (TRAP_PER_CPU_CPU_MONDO_QMASK != - offsetof(struct trap_per_cpu, cpu_mondo_qmask)) || - (TRAP_PER_CPU_DEV_MONDO_QMASK != - offsetof(struct trap_per_cpu, dev_mondo_qmask)) || - (TRAP_PER_CPU_RESUM_QMASK != - offsetof(struct trap_per_cpu, resum_qmask)) || - (TRAP_PER_CPU_NONRESUM_QMASK != - offsetof(struct trap_per_cpu, nonresum_qmask))) - trap_per_cpu_offsets_are_bolixed_dave(); - - if ((TSB_CONFIG_TSB != - offsetof(struct tsb_config, tsb)) || - (TSB_CONFIG_RSS_LIMIT != - offsetof(struct tsb_config, tsb_rss_limit)) || - (TSB_CONFIG_NENTRIES != - offsetof(struct tsb_config, tsb_nentries)) || - (TSB_CONFIG_REG_VAL != - offsetof(struct tsb_config, tsb_reg_val)) || - (TSB_CONFIG_MAP_VADDR != - offsetof(struct tsb_config, tsb_map_vaddr)) || - (TSB_CONFIG_MAP_PTE != - offsetof(struct tsb_config, tsb_map_pte))) - tsb_config_offsets_are_bolixed_dave(); - - /* Attach to the address space of init_task. On SMP we - * do this in smp.c:smp_callin for other cpus. - */ - atomic_inc(&init_mm.mm_count); - current->active_mm = &init_mm; -} diff --git a/arch/sparc64/kernel/tsb.S b/arch/sparc64/kernel/tsb.S deleted file mode 100644 index c499214b501d..000000000000 --- a/arch/sparc64/kernel/tsb.S +++ /dev/null @@ -1,552 +0,0 @@ -/* tsb.S: Sparc64 TSB table handling. - * - * Copyright (C) 2006 David S. Miller <davem@davemloft.net> - */ - - -#include <asm/tsb.h> -#include <asm/hypervisor.h> -#include <asm/page.h> -#include <asm/cpudata.h> -#include <asm/mmu.h> - - .text - .align 32 - - /* Invoked from TLB miss handler, we are in the - * MMU global registers and they are setup like - * this: - * - * %g1: TSB entry pointer - * %g2: available temporary - * %g3: FAULT_CODE_{D,I}TLB - * %g4: available temporary - * %g5: available temporary - * %g6: TAG TARGET - * %g7: available temporary, will be loaded by us with - * the physical address base of the linux page - * tables for the current address space - */ -tsb_miss_dtlb: - mov TLB_TAG_ACCESS, %g4 - ba,pt %xcc, tsb_miss_page_table_walk - ldxa [%g4] ASI_DMMU, %g4 - -tsb_miss_itlb: - mov TLB_TAG_ACCESS, %g4 - ba,pt %xcc, tsb_miss_page_table_walk - ldxa [%g4] ASI_IMMU, %g4 - - /* At this point we have: - * %g1 -- PAGE_SIZE TSB entry address - * %g3 -- FAULT_CODE_{D,I}TLB - * %g4 -- missing virtual address - * %g6 -- TAG TARGET (vaddr >> 22) - */ -tsb_miss_page_table_walk: - TRAP_LOAD_TRAP_BLOCK(%g7, %g5) - - /* Before committing to a full page table walk, - * check the huge page TSB. - */ -#ifdef CONFIG_HUGETLB_PAGE - -661: ldx [%g7 + TRAP_PER_CPU_TSB_HUGE], %g5 - nop - .section .sun4v_2insn_patch, "ax" - .word 661b - mov SCRATCHPAD_UTSBREG2, %g5 - ldxa [%g5] ASI_SCRATCHPAD, %g5 - .previous - - cmp %g5, -1 - be,pt %xcc, 80f - nop - - /* We need an aligned pair of registers containing 2 values - * which can be easily rematerialized. %g6 and %g7 foot the - * bill just nicely. We'll save %g6 away into %g2 for the - * huge page TSB TAG comparison. - * - * Perform a huge page TSB lookup. - */ - mov %g6, %g2 - and %g5, 0x7, %g6 - mov 512, %g7 - andn %g5, 0x7, %g5 - sllx %g7, %g6, %g7 - srlx %g4, HPAGE_SHIFT, %g6 - sub %g7, 1, %g7 - and %g6, %g7, %g6 - sllx %g6, 4, %g6 - add %g5, %g6, %g5 - - TSB_LOAD_QUAD(%g5, %g6) - cmp %g6, %g2 - be,a,pt %xcc, tsb_tlb_reload - mov %g7, %g5 - - /* No match, remember the huge page TSB entry address, - * and restore %g6 and %g7. - */ - TRAP_LOAD_TRAP_BLOCK(%g7, %g6) - srlx %g4, 22, %g6 -80: stx %g5, [%g7 + TRAP_PER_CPU_TSB_HUGE_TEMP] - -#endif - - ldx [%g7 + TRAP_PER_CPU_PGD_PADDR], %g7 - - /* At this point we have: - * %g1 -- TSB entry address - * %g3 -- FAULT_CODE_{D,I}TLB - * %g4 -- missing virtual address - * %g6 -- TAG TARGET (vaddr >> 22) - * %g7 -- page table physical address - * - * We know that both the base PAGE_SIZE TSB and the HPAGE_SIZE - * TSB both lack a matching entry. - */ -tsb_miss_page_table_walk_sun4v_fastpath: - USER_PGTABLE_WALK_TL1(%g4, %g7, %g5, %g2, tsb_do_fault) - - /* Load and check PTE. */ - ldxa [%g5] ASI_PHYS_USE_EC, %g5 - brgez,pn %g5, tsb_do_fault - nop - -#ifdef CONFIG_HUGETLB_PAGE -661: sethi %uhi(_PAGE_SZALL_4U), %g7 - sllx %g7, 32, %g7 - .section .sun4v_2insn_patch, "ax" - .word 661b - mov _PAGE_SZALL_4V, %g7 - nop - .previous - - and %g5, %g7, %g2 - -661: sethi %uhi(_PAGE_SZHUGE_4U), %g7 - sllx %g7, 32, %g7 - .section .sun4v_2insn_patch, "ax" - .word 661b - mov _PAGE_SZHUGE_4V, %g7 - nop - .previous - - cmp %g2, %g7 - bne,pt %xcc, 60f - nop - - /* It is a huge page, use huge page TSB entry address we - * calculated above. - */ - TRAP_LOAD_TRAP_BLOCK(%g7, %g2) - ldx [%g7 + TRAP_PER_CPU_TSB_HUGE_TEMP], %g2 - cmp %g2, -1 - movne %xcc, %g2, %g1 -60: -#endif - - /* At this point we have: - * %g1 -- TSB entry address - * %g3 -- FAULT_CODE_{D,I}TLB - * %g5 -- valid PTE - * %g6 -- TAG TARGET (vaddr >> 22) - */ -tsb_reload: - TSB_LOCK_TAG(%g1, %g2, %g7) - TSB_WRITE(%g1, %g5, %g6) - - /* Finally, load TLB and return from trap. */ -tsb_tlb_reload: - cmp %g3, FAULT_CODE_DTLB - bne,pn %xcc, tsb_itlb_load - nop - -tsb_dtlb_load: - -661: stxa %g5, [%g0] ASI_DTLB_DATA_IN - retry - .section .sun4v_2insn_patch, "ax" - .word 661b - nop - nop - .previous - - /* For sun4v the ASI_DTLB_DATA_IN store and the retry - * instruction get nop'd out and we get here to branch - * to the sun4v tlb load code. The registers are setup - * as follows: - * - * %g4: vaddr - * %g5: PTE - * %g6: TAG - * - * The sun4v TLB load wants the PTE in %g3 so we fix that - * up here. - */ - ba,pt %xcc, sun4v_dtlb_load - mov %g5, %g3 - -tsb_itlb_load: - /* Executable bit must be set. */ -661: andcc %g5, _PAGE_EXEC_4U, %g0 - .section .sun4v_1insn_patch, "ax" - .word 661b - andcc %g5, _PAGE_EXEC_4V, %g0 - .previous - - be,pn %xcc, tsb_do_fault - nop - -661: stxa %g5, [%g0] ASI_ITLB_DATA_IN - retry - .section .sun4v_2insn_patch, "ax" - .word 661b - nop - nop - .previous - - /* For sun4v the ASI_ITLB_DATA_IN store and the retry - * instruction get nop'd out and we get here to branch - * to the sun4v tlb load code. The registers are setup - * as follows: - * - * %g4: vaddr - * %g5: PTE - * %g6: TAG - * - * The sun4v TLB load wants the PTE in %g3 so we fix that - * up here. - */ - ba,pt %xcc, sun4v_itlb_load - mov %g5, %g3 - - /* No valid entry in the page tables, do full fault - * processing. - */ - - .globl tsb_do_fault -tsb_do_fault: - cmp %g3, FAULT_CODE_DTLB - -661: rdpr %pstate, %g5 - wrpr %g5, PSTATE_AG | PSTATE_MG, %pstate - .section .sun4v_2insn_patch, "ax" - .word 661b - SET_GL(1) - ldxa [%g0] ASI_SCRATCHPAD, %g4 - .previous - - bne,pn %xcc, tsb_do_itlb_fault - nop - -tsb_do_dtlb_fault: - rdpr %tl, %g3 - cmp %g3, 1 - -661: mov TLB_TAG_ACCESS, %g4 - ldxa [%g4] ASI_DMMU, %g5 - .section .sun4v_2insn_patch, "ax" - .word 661b - ldx [%g4 + HV_FAULT_D_ADDR_OFFSET], %g5 - nop - .previous - - be,pt %xcc, sparc64_realfault_common - mov FAULT_CODE_DTLB, %g4 - ba,pt %xcc, winfix_trampoline - nop - -tsb_do_itlb_fault: - rdpr %tpc, %g5 - ba,pt %xcc, sparc64_realfault_common - mov FAULT_CODE_ITLB, %g4 - - .globl sparc64_realfault_common -sparc64_realfault_common: - /* fault code in %g4, fault address in %g5, etrap will - * preserve these two values in %l4 and %l5 respectively - */ - ba,pt %xcc, etrap ! Save trap state -1: rd %pc, %g7 ! ... - stb %l4, [%g6 + TI_FAULT_CODE] ! Save fault code - stx %l5, [%g6 + TI_FAULT_ADDR] ! Save fault address - call do_sparc64_fault ! Call fault handler - add %sp, PTREGS_OFF, %o0 ! Compute pt_regs arg - ba,pt %xcc, rtrap ! Restore cpu state - nop ! Delay slot (fill me) - -winfix_trampoline: - rdpr %tpc, %g3 ! Prepare winfixup TNPC - or %g3, 0x7c, %g3 ! Compute branch offset - wrpr %g3, %tnpc ! Write it into TNPC - done ! Trap return - - /* Insert an entry into the TSB. - * - * %o0: TSB entry pointer (virt or phys address) - * %o1: tag - * %o2: pte - */ - .align 32 - .globl __tsb_insert -__tsb_insert: - rdpr %pstate, %o5 - wrpr %o5, PSTATE_IE, %pstate - TSB_LOCK_TAG(%o0, %g2, %g3) - TSB_WRITE(%o0, %o2, %o1) - wrpr %o5, %pstate - retl - nop - .size __tsb_insert, .-__tsb_insert - - /* Flush the given TSB entry if it has the matching - * tag. - * - * %o0: TSB entry pointer (virt or phys address) - * %o1: tag - */ - .align 32 - .globl tsb_flush - .type tsb_flush,#function -tsb_flush: - sethi %hi(TSB_TAG_LOCK_HIGH), %g2 -1: TSB_LOAD_TAG(%o0, %g1) - srlx %g1, 32, %o3 - andcc %o3, %g2, %g0 - bne,pn %icc, 1b - membar #LoadLoad - cmp %g1, %o1 - mov 1, %o3 - bne,pt %xcc, 2f - sllx %o3, TSB_TAG_INVALID_BIT, %o3 - TSB_CAS_TAG(%o0, %g1, %o3) - cmp %g1, %o3 - bne,pn %xcc, 1b - nop -2: retl - TSB_MEMBAR - .size tsb_flush, .-tsb_flush - - /* Reload MMU related context switch state at - * schedule() time. - * - * %o0: page table physical address - * %o1: TSB base config pointer - * %o2: TSB huge config pointer, or NULL if none - * %o3: Hypervisor TSB descriptor physical address - * - * We have to run this whole thing with interrupts - * disabled so that the current cpu doesn't change - * due to preemption. - */ - .align 32 - .globl __tsb_context_switch - .type __tsb_context_switch,#function -__tsb_context_switch: - rdpr %pstate, %g1 - wrpr %g1, PSTATE_IE, %pstate - - TRAP_LOAD_TRAP_BLOCK(%g2, %g3) - - stx %o0, [%g2 + TRAP_PER_CPU_PGD_PADDR] - - ldx [%o1 + TSB_CONFIG_REG_VAL], %o0 - brz,pt %o2, 1f - mov -1, %g3 - - ldx [%o2 + TSB_CONFIG_REG_VAL], %g3 - -1: stx %g3, [%g2 + TRAP_PER_CPU_TSB_HUGE] - - sethi %hi(tlb_type), %g2 - lduw [%g2 + %lo(tlb_type)], %g2 - cmp %g2, 3 - bne,pt %icc, 50f - nop - - /* Hypervisor TSB switch. */ - mov SCRATCHPAD_UTSBREG1, %o5 - stxa %o0, [%o5] ASI_SCRATCHPAD - mov SCRATCHPAD_UTSBREG2, %o5 - stxa %g3, [%o5] ASI_SCRATCHPAD - - mov 2, %o0 - cmp %g3, -1 - move %xcc, 1, %o0 - - mov HV_FAST_MMU_TSB_CTXNON0, %o5 - mov %o3, %o1 - ta HV_FAST_TRAP - - /* Finish up. */ - ba,pt %xcc, 9f - nop - - /* SUN4U TSB switch. */ -50: mov TSB_REG, %o5 - stxa %o0, [%o5] ASI_DMMU - membar #Sync - stxa %o0, [%o5] ASI_IMMU - membar #Sync - -2: ldx [%o1 + TSB_CONFIG_MAP_VADDR], %o4 - brz %o4, 9f - ldx [%o1 + TSB_CONFIG_MAP_PTE], %o5 - - sethi %hi(sparc64_highest_unlocked_tlb_ent), %g2 - mov TLB_TAG_ACCESS, %g3 - lduw [%g2 + %lo(sparc64_highest_unlocked_tlb_ent)], %g2 - stxa %o4, [%g3] ASI_DMMU - membar #Sync - sllx %g2, 3, %g2 - stxa %o5, [%g2] ASI_DTLB_DATA_ACCESS - membar #Sync - - brz,pt %o2, 9f - nop - - ldx [%o2 + TSB_CONFIG_MAP_VADDR], %o4 - ldx [%o2 + TSB_CONFIG_MAP_PTE], %o5 - mov TLB_TAG_ACCESS, %g3 - stxa %o4, [%g3] ASI_DMMU - membar #Sync - sub %g2, (1 << 3), %g2 - stxa %o5, [%g2] ASI_DTLB_DATA_ACCESS - membar #Sync - -9: - wrpr %g1, %pstate - - retl - nop - .size __tsb_context_switch, .-__tsb_context_switch - -#define TSB_PASS_BITS ((1 << TSB_TAG_LOCK_BIT) | \ - (1 << TSB_TAG_INVALID_BIT)) - - .align 32 - .globl copy_tsb - .type copy_tsb,#function -copy_tsb: /* %o0=old_tsb_base, %o1=old_tsb_size - * %o2=new_tsb_base, %o3=new_tsb_size - */ - sethi %uhi(TSB_PASS_BITS), %g7 - srlx %o3, 4, %o3 - add %o0, %o1, %g1 /* end of old tsb */ - sllx %g7, 32, %g7 - sub %o3, 1, %o3 /* %o3 == new tsb hash mask */ - -661: prefetcha [%o0] ASI_N, #one_read - .section .tsb_phys_patch, "ax" - .word 661b - prefetcha [%o0] ASI_PHYS_USE_EC, #one_read - .previous - -90: andcc %o0, (64 - 1), %g0 - bne 1f - add %o0, 64, %o5 - -661: prefetcha [%o5] ASI_N, #one_read - .section .tsb_phys_patch, "ax" - .word 661b - prefetcha [%o5] ASI_PHYS_USE_EC, #one_read - .previous - -1: TSB_LOAD_QUAD(%o0, %g2) /* %g2/%g3 == TSB entry */ - andcc %g2, %g7, %g0 /* LOCK or INVALID set? */ - bne,pn %xcc, 80f /* Skip it */ - sllx %g2, 22, %o4 /* TAG --> VADDR */ - - /* This can definitely be computed faster... */ - srlx %o0, 4, %o5 /* Build index */ - and %o5, 511, %o5 /* Mask index */ - sllx %o5, PAGE_SHIFT, %o5 /* Put into vaddr position */ - or %o4, %o5, %o4 /* Full VADDR. */ - srlx %o4, PAGE_SHIFT, %o4 /* Shift down to create index */ - and %o4, %o3, %o4 /* Mask with new_tsb_nents-1 */ - sllx %o4, 4, %o4 /* Shift back up into tsb ent offset */ - TSB_STORE(%o2 + %o4, %g2) /* Store TAG */ - add %o4, 0x8, %o4 /* Advance to TTE */ - TSB_STORE(%o2 + %o4, %g3) /* Store TTE */ - -80: add %o0, 16, %o0 - cmp %o0, %g1 - bne,pt %xcc, 90b - nop - - retl - TSB_MEMBAR - .size copy_tsb, .-copy_tsb - - /* Set the invalid bit in all TSB entries. */ - .align 32 - .globl tsb_init - .type tsb_init,#function -tsb_init: /* %o0 = TSB vaddr, %o1 = size in bytes */ - prefetch [%o0 + 0x000], #n_writes - mov 1, %g1 - prefetch [%o0 + 0x040], #n_writes - sllx %g1, TSB_TAG_INVALID_BIT, %g1 - prefetch [%o0 + 0x080], #n_writes -1: prefetch [%o0 + 0x0c0], #n_writes - stx %g1, [%o0 + 0x00] - stx %g1, [%o0 + 0x10] - stx %g1, [%o0 + 0x20] - stx %g1, [%o0 + 0x30] - prefetch [%o0 + 0x100], #n_writes - stx %g1, [%o0 + 0x40] - stx %g1, [%o0 + 0x50] - stx %g1, [%o0 + 0x60] - stx %g1, [%o0 + 0x70] - prefetch [%o0 + 0x140], #n_writes - stx %g1, [%o0 + 0x80] - stx %g1, [%o0 + 0x90] - stx %g1, [%o0 + 0xa0] - stx %g1, [%o0 + 0xb0] - prefetch [%o0 + 0x180], #n_writes - stx %g1, [%o0 + 0xc0] - stx %g1, [%o0 + 0xd0] - stx %g1, [%o0 + 0xe0] - stx %g1, [%o0 + 0xf0] - subcc %o1, 0x100, %o1 - bne,pt %xcc, 1b - add %o0, 0x100, %o0 - retl - nop - nop - nop - .size tsb_init, .-tsb_init - - .globl NGtsb_init - .type NGtsb_init,#function -NGtsb_init: - rd %asi, %g2 - mov 1, %g1 - wr %g0, ASI_BLK_INIT_QUAD_LDD_P, %asi - sllx %g1, TSB_TAG_INVALID_BIT, %g1 -1: stxa %g1, [%o0 + 0x00] %asi - stxa %g1, [%o0 + 0x10] %asi - stxa %g1, [%o0 + 0x20] %asi - stxa %g1, [%o0 + 0x30] %asi - stxa %g1, [%o0 + 0x40] %asi - stxa %g1, [%o0 + 0x50] %asi - stxa %g1, [%o0 + 0x60] %asi - stxa %g1, [%o0 + 0x70] %asi - stxa %g1, [%o0 + 0x80] %asi - stxa %g1, [%o0 + 0x90] %asi - stxa %g1, [%o0 + 0xa0] %asi - stxa %g1, [%o0 + 0xb0] %asi - stxa %g1, [%o0 + 0xc0] %asi - stxa %g1, [%o0 + 0xd0] %asi - stxa %g1, [%o0 + 0xe0] %asi - stxa %g1, [%o0 + 0xf0] %asi - subcc %o1, 0x100, %o1 - bne,pt %xcc, 1b - add %o0, 0x100, %o0 - membar #Sync - retl - wr %g2, 0x0, %asi - .size NGtsb_init, .-NGtsb_init diff --git a/arch/sparc64/kernel/ttable.S b/arch/sparc64/kernel/ttable.S deleted file mode 100644 index 1ade3d6fb7fc..000000000000 --- a/arch/sparc64/kernel/ttable.S +++ /dev/null @@ -1,266 +0,0 @@ -/* ttable.S: Sparc V9 Trap Table(s) with SpitFire/Cheetah/SUN4V extensions. - * - * Copyright (C) 1996, 2001, 2006 David S. Miller (davem@davemloft.net) - */ - - - .globl sparc64_ttable_tl0, sparc64_ttable_tl1 - .globl tl0_icpe, tl1_icpe - .globl tl0_dcpe, tl1_dcpe - .globl tl0_fecc, tl1_fecc - .globl tl0_cee, tl1_cee - .globl tl0_iae, tl1_iae - .globl tl0_dae, tl1_dae - -sparc64_ttable_tl0: -tl0_resv000: BOOT_KERNEL BTRAP(0x1) BTRAP(0x2) BTRAP(0x3) -tl0_resv004: BTRAP(0x4) BTRAP(0x5) BTRAP(0x6) BTRAP(0x7) -tl0_iax: membar #Sync - TRAP_NOSAVE_7INSNS(__spitfire_insn_access_exception) -tl0_itsb_4v: SUN4V_ITSB_MISS -tl0_iae: membar #Sync - TRAP_NOSAVE_7INSNS(__spitfire_access_error) -tl0_resv00b: BTRAP(0xb) BTRAP(0xc) BTRAP(0xd) BTRAP(0xe) BTRAP(0xf) -tl0_ill: membar #Sync - TRAP_7INSNS(do_illegal_instruction) -tl0_privop: TRAP(do_privop) -tl0_resv012: BTRAP(0x12) BTRAP(0x13) BTRAP(0x14) BTRAP(0x15) BTRAP(0x16) BTRAP(0x17) -tl0_resv018: BTRAP(0x18) BTRAP(0x19) BTRAP(0x1a) BTRAP(0x1b) BTRAP(0x1c) BTRAP(0x1d) -tl0_resv01e: BTRAP(0x1e) BTRAP(0x1f) -tl0_fpdis: TRAP_NOSAVE(do_fpdis) -tl0_fpieee: TRAP_SAVEFPU(do_fpieee) -tl0_fpother: TRAP_NOSAVE(do_fpother_check_fitos) -tl0_tof: TRAP(do_tof) -tl0_cwin: CLEAN_WINDOW -tl0_div0: TRAP(do_div0) -tl0_resv029: BTRAP(0x29) BTRAP(0x2a) BTRAP(0x2b) BTRAP(0x2c) BTRAP(0x2d) BTRAP(0x2e) -tl0_resv02f: BTRAP(0x2f) -tl0_dax: TRAP_NOSAVE(__spitfire_data_access_exception) -tl0_dtsb_4v: SUN4V_DTSB_MISS -tl0_dae: membar #Sync - TRAP_NOSAVE_7INSNS(__spitfire_access_error) -tl0_resv033: BTRAP(0x33) -tl0_mna: TRAP_NOSAVE(do_mna) -tl0_lddfmna: TRAP_NOSAVE(do_lddfmna) -tl0_stdfmna: TRAP_NOSAVE(do_stdfmna) -tl0_privact: TRAP_NOSAVE(__do_privact) -tl0_resv038: BTRAP(0x38) BTRAP(0x39) BTRAP(0x3a) BTRAP(0x3b) BTRAP(0x3c) BTRAP(0x3d) -tl0_resv03e: BTRAP(0x3e) BTRAP(0x3f) BTRAP(0x40) -#ifdef CONFIG_SMP -tl0_irq1: TRAP_IRQ(smp_call_function_client, 1) -tl0_irq2: TRAP_IRQ(smp_receive_signal_client, 2) -tl0_irq3: TRAP_IRQ(smp_penguin_jailcell, 3) -tl0_irq4: TRAP_IRQ(smp_new_mmu_context_version_client, 4) -#else -tl0_irq1: BTRAP(0x41) -tl0_irq2: BTRAP(0x42) -tl0_irq3: BTRAP(0x43) -tl0_irq4: BTRAP(0x44) -#endif -tl0_irq5: TRAP_IRQ(handler_irq, 5) -#ifdef CONFIG_SMP -tl0_irq6: TRAP_IRQ(smp_call_function_single_client, 6) -#else -tl0_irq6: BTRAP(0x46) -#endif -tl0_irq7: BTRAP(0x47) BTRAP(0x48) BTRAP(0x49) -tl0_irq10: BTRAP(0x4a) BTRAP(0x4b) BTRAP(0x4c) BTRAP(0x4d) -tl0_irq14: TRAP_IRQ(timer_interrupt, 14) -tl0_irq15: TRAP_IRQ(handler_irq, 15) -tl0_resv050: BTRAP(0x50) BTRAP(0x51) BTRAP(0x52) BTRAP(0x53) BTRAP(0x54) BTRAP(0x55) -tl0_resv056: BTRAP(0x56) BTRAP(0x57) BTRAP(0x58) BTRAP(0x59) BTRAP(0x5a) BTRAP(0x5b) -tl0_resv05c: BTRAP(0x5c) BTRAP(0x5d) BTRAP(0x5e) BTRAP(0x5f) -tl0_ivec: TRAP_IVEC -tl0_paw: TRAP(do_paw) -tl0_vaw: TRAP(do_vaw) -tl0_cee: membar #Sync - TRAP_NOSAVE_7INSNS(__spitfire_cee_trap) -tl0_iamiss: -#include "itlb_miss.S" -tl0_damiss: -#include "dtlb_miss.S" -tl0_daprot: -#include "dtlb_prot.S" -tl0_fecc: BTRAP(0x70) /* Fast-ECC on Cheetah */ -tl0_dcpe: BTRAP(0x71) /* D-cache Parity Error on Cheetah+ */ -tl0_icpe: BTRAP(0x72) /* I-cache Parity Error on Cheetah+ */ -tl0_resv073: BTRAP(0x73) BTRAP(0x74) BTRAP(0x75) -tl0_resv076: BTRAP(0x76) BTRAP(0x77) BTRAP(0x78) BTRAP(0x79) BTRAP(0x7a) BTRAP(0x7b) -tl0_cpu_mondo: TRAP_NOSAVE(sun4v_cpu_mondo) -tl0_dev_mondo: TRAP_NOSAVE(sun4v_dev_mondo) -tl0_res_mondo: TRAP_NOSAVE(sun4v_res_mondo) -tl0_nres_mondo: TRAP_NOSAVE(sun4v_nonres_mondo) -tl0_s0n: SPILL_0_NORMAL -tl0_s1n: SPILL_1_NORMAL -tl0_s2n: SPILL_2_NORMAL -tl0_s3n: SPILL_0_NORMAL_ETRAP -tl0_s4n: SPILL_1_GENERIC_ETRAP -tl0_s5n: SPILL_1_GENERIC_ETRAP_FIXUP -tl0_s6n: SPILL_2_GENERIC_ETRAP -tl0_s7n: SPILL_2_GENERIC_ETRAP_FIXUP -tl0_s0o: SPILL_0_OTHER -tl0_s1o: SPILL_1_OTHER -tl0_s2o: SPILL_2_OTHER -tl0_s3o: SPILL_3_OTHER -tl0_s4o: SPILL_4_OTHER -tl0_s5o: SPILL_5_OTHER -tl0_s6o: SPILL_6_OTHER -tl0_s7o: SPILL_7_OTHER -tl0_f0n: FILL_0_NORMAL -tl0_f1n: FILL_1_NORMAL -tl0_f2n: FILL_2_NORMAL -tl0_f3n: FILL_3_NORMAL -tl0_f4n: FILL_4_NORMAL -tl0_f5n: FILL_0_NORMAL_RTRAP -tl0_f6n: FILL_1_GENERIC_RTRAP -tl0_f7n: FILL_2_GENERIC_RTRAP -tl0_f0o: FILL_0_OTHER -tl0_f1o: FILL_1_OTHER -tl0_f2o: FILL_2_OTHER -tl0_f3o: FILL_3_OTHER -tl0_f4o: FILL_4_OTHER -tl0_f5o: FILL_5_OTHER -tl0_f6o: FILL_6_OTHER -tl0_f7o: FILL_7_OTHER -tl0_resv100: BTRAP(0x100) -tl0_bkpt: BREAKPOINT_TRAP -tl0_divz: TRAP(do_div0) -tl0_flushw: FLUSH_WINDOW_TRAP -tl0_resv104: BTRAP(0x104) BTRAP(0x105) BTRAP(0x106) BTRAP(0x107) BTRAP(0x108) -tl0_resv109: BTRAP(0x109) BTRAP(0x10a) BTRAP(0x10b) BTRAP(0x10c) BTRAP(0x10d) -tl0_resv10e: BTRAP(0x10e) BTRAP(0x10f) -tl0_linux32: LINUX_32BIT_SYSCALL_TRAP -tl0_oldlinux64: LINUX_64BIT_SYSCALL_TRAP -tl0_resv112: TRAP_UTRAP(UT_TRAP_INSTRUCTION_18,0x112) TRAP_UTRAP(UT_TRAP_INSTRUCTION_19,0x113) -tl0_resv114: TRAP_UTRAP(UT_TRAP_INSTRUCTION_20,0x114) TRAP_UTRAP(UT_TRAP_INSTRUCTION_21,0x115) -tl0_resv116: TRAP_UTRAP(UT_TRAP_INSTRUCTION_22,0x116) TRAP_UTRAP(UT_TRAP_INSTRUCTION_23,0x117) -tl0_resv118: TRAP_UTRAP(UT_TRAP_INSTRUCTION_24,0x118) TRAP_UTRAP(UT_TRAP_INSTRUCTION_25,0x119) -tl0_resv11a: TRAP_UTRAP(UT_TRAP_INSTRUCTION_26,0x11a) TRAP_UTRAP(UT_TRAP_INSTRUCTION_27,0x11b) -tl0_resv11c: TRAP_UTRAP(UT_TRAP_INSTRUCTION_28,0x11c) TRAP_UTRAP(UT_TRAP_INSTRUCTION_29,0x11d) -tl0_resv11e: TRAP_UTRAP(UT_TRAP_INSTRUCTION_30,0x11e) TRAP_UTRAP(UT_TRAP_INSTRUCTION_31,0x11f) -tl0_getcc: GETCC_TRAP -tl0_setcc: SETCC_TRAP -tl0_getpsr: TRAP(do_getpsr) -tl0_resv123: BTRAP(0x123) BTRAP(0x124) BTRAP(0x125) BTRAP(0x126) BTRAP(0x127) -tl0_resv128: BTRAP(0x128) BTRAP(0x129) BTRAP(0x12a) BTRAP(0x12b) BTRAP(0x12c) -tl0_resv12d: BTRAP(0x12d) BTRAP(0x12e) BTRAP(0x12f) BTRAP(0x130) BTRAP(0x131) -tl0_resv132: BTRAP(0x132) BTRAP(0x133) BTRAP(0x134) BTRAP(0x135) BTRAP(0x136) -tl0_resv137: BTRAP(0x137) BTRAP(0x138) BTRAP(0x139) BTRAP(0x13a) BTRAP(0x13b) -tl0_resv13c: BTRAP(0x13c) BTRAP(0x13d) BTRAP(0x13e) BTRAP(0x13f) BTRAP(0x140) -tl0_resv141: BTRAP(0x141) BTRAP(0x142) BTRAP(0x143) BTRAP(0x144) BTRAP(0x145) -tl0_resv146: BTRAP(0x146) BTRAP(0x147) BTRAP(0x148) BTRAP(0x149) BTRAP(0x14a) -tl0_resv14b: BTRAP(0x14b) BTRAP(0x14c) BTRAP(0x14d) BTRAP(0x14e) BTRAP(0x14f) -tl0_resv150: BTRAP(0x150) BTRAP(0x151) BTRAP(0x152) BTRAP(0x153) BTRAP(0x154) -tl0_resv155: BTRAP(0x155) BTRAP(0x156) BTRAP(0x157) BTRAP(0x158) BTRAP(0x159) -tl0_resv15a: BTRAP(0x15a) BTRAP(0x15b) BTRAP(0x15c) BTRAP(0x15d) BTRAP(0x15e) -tl0_resv15f: BTRAP(0x15f) BTRAP(0x160) BTRAP(0x161) BTRAP(0x162) BTRAP(0x163) -tl0_resv164: BTRAP(0x164) BTRAP(0x165) BTRAP(0x166) BTRAP(0x167) BTRAP(0x168) -tl0_resv169: BTRAP(0x169) BTRAP(0x16a) BTRAP(0x16b) BTRAP(0x16c) -tl0_linux64: LINUX_64BIT_SYSCALL_TRAP -tl0_gsctx: TRAP(sparc64_get_context) TRAP(sparc64_set_context) -tl0_resv170: KPROBES_TRAP(0x170) KPROBES_TRAP(0x171) KGDB_TRAP(0x172) -tl0_resv173: BTRAP(0x173) BTRAP(0x174) BTRAP(0x175) BTRAP(0x176) BTRAP(0x177) -tl0_resv178: BTRAP(0x178) BTRAP(0x179) BTRAP(0x17a) BTRAP(0x17b) BTRAP(0x17c) -tl0_resv17d: BTRAP(0x17d) BTRAP(0x17e) BTRAP(0x17f) -#define BTRAPS(x) BTRAP(x) BTRAP(x+1) BTRAP(x+2) BTRAP(x+3) BTRAP(x+4) BTRAP(x+5) BTRAP(x+6) BTRAP(x+7) -tl0_resv180: BTRAPS(0x180) BTRAPS(0x188) -tl0_resv190: BTRAPS(0x190) BTRAPS(0x198) -tl0_resv1a0: BTRAPS(0x1a0) BTRAPS(0x1a8) -tl0_resv1b0: BTRAPS(0x1b0) BTRAPS(0x1b8) -tl0_resv1c0: BTRAPS(0x1c0) BTRAPS(0x1c8) -tl0_resv1d0: BTRAPS(0x1d0) BTRAPS(0x1d8) -tl0_resv1e0: BTRAPS(0x1e0) BTRAPS(0x1e8) -tl0_resv1f0: BTRAPS(0x1f0) BTRAPS(0x1f8) - -sparc64_ttable_tl1: -tl1_resv000: BOOT_KERNEL BTRAPTL1(0x1) BTRAPTL1(0x2) BTRAPTL1(0x3) -tl1_resv004: BTRAPTL1(0x4) BTRAPTL1(0x5) BTRAPTL1(0x6) BTRAPTL1(0x7) -tl1_iax: TRAP_NOSAVE(__spitfire_insn_access_exception_tl1) -tl1_itsb_4v: SUN4V_ITSB_MISS -tl1_iae: membar #Sync - TRAP_NOSAVE_7INSNS(__spitfire_access_error) -tl1_resv00b: BTRAPTL1(0xb) BTRAPTL1(0xc) BTRAPTL1(0xd) BTRAPTL1(0xe) BTRAPTL1(0xf) -tl1_ill: TRAPTL1(do_ill_tl1) -tl1_privop: BTRAPTL1(0x11) -tl1_resv012: BTRAPTL1(0x12) BTRAPTL1(0x13) BTRAPTL1(0x14) BTRAPTL1(0x15) -tl1_resv016: BTRAPTL1(0x16) BTRAPTL1(0x17) BTRAPTL1(0x18) BTRAPTL1(0x19) -tl1_resv01a: BTRAPTL1(0x1a) BTRAPTL1(0x1b) BTRAPTL1(0x1c) BTRAPTL1(0x1d) -tl1_resv01e: BTRAPTL1(0x1e) BTRAPTL1(0x1f) -tl1_fpdis: TRAP_NOSAVE(do_fpdis) -tl1_fpieee: TRAPTL1(do_fpieee_tl1) -tl1_fpother: TRAPTL1(do_fpother_tl1) -tl1_tof: TRAPTL1(do_tof_tl1) -tl1_cwin: CLEAN_WINDOW -tl1_div0: TRAPTL1(do_div0_tl1) -tl1_resv029: BTRAPTL1(0x29) BTRAPTL1(0x2a) BTRAPTL1(0x2b) BTRAPTL1(0x2c) -tl1_resv02d: BTRAPTL1(0x2d) BTRAPTL1(0x2e) BTRAPTL1(0x2f) -tl1_dax: TRAP_NOSAVE(__spitfire_data_access_exception_tl1) -tl1_dtsb_4v: SUN4V_DTSB_MISS -tl1_dae: membar #Sync - TRAP_NOSAVE_7INSNS(__spitfire_access_error) -tl1_resv033: BTRAPTL1(0x33) -tl1_mna: TRAP_NOSAVE(do_mna) -tl1_lddfmna: TRAPTL1(do_lddfmna_tl1) -tl1_stdfmna: TRAPTL1(do_stdfmna_tl1) -tl1_privact: BTRAPTL1(0x37) -tl1_resv038: BTRAPTL1(0x38) BTRAPTL1(0x39) BTRAPTL1(0x3a) BTRAPTL1(0x3b) -tl1_resv03c: BTRAPTL1(0x3c) BTRAPTL1(0x3d) BTRAPTL1(0x3e) BTRAPTL1(0x3f) -tl1_resv040: BTRAPTL1(0x40) -tl1_irq1: TRAP_IRQ(do_irq_tl1, 1) TRAP_IRQ(do_irq_tl1, 2) TRAP_IRQ(do_irq_tl1, 3) -tl1_irq4: TRAP_IRQ(do_irq_tl1, 4) TRAP_IRQ(do_irq_tl1, 5) TRAP_IRQ(do_irq_tl1, 6) -tl1_irq7: TRAP_IRQ(do_irq_tl1, 7) TRAP_IRQ(do_irq_tl1, 8) TRAP_IRQ(do_irq_tl1, 9) -tl1_irq10: TRAP_IRQ(do_irq_tl1, 10) TRAP_IRQ(do_irq_tl1, 11) -tl1_irq12: TRAP_IRQ(do_irq_tl1, 12) TRAP_IRQ(do_irq_tl1, 13) -tl1_irq14: TRAP_IRQ(do_irq_tl1, 14) TRAP_IRQ(do_irq_tl1, 15) -tl1_resv050: BTRAPTL1(0x50) BTRAPTL1(0x51) BTRAPTL1(0x52) BTRAPTL1(0x53) -tl1_resv054: BTRAPTL1(0x54) BTRAPTL1(0x55) BTRAPTL1(0x56) BTRAPTL1(0x57) -tl1_resv058: BTRAPTL1(0x58) BTRAPTL1(0x59) BTRAPTL1(0x5a) BTRAPTL1(0x5b) -tl1_resv05c: BTRAPTL1(0x5c) BTRAPTL1(0x5d) BTRAPTL1(0x5e) BTRAPTL1(0x5f) -tl1_ivec: TRAP_IVEC -tl1_paw: TRAPTL1(do_paw_tl1) -tl1_vaw: TRAPTL1(do_vaw_tl1) -tl1_cee: BTRAPTL1(0x63) -tl1_iamiss: BTRAPTL1(0x64) BTRAPTL1(0x65) BTRAPTL1(0x66) BTRAPTL1(0x67) -tl1_damiss: -#include "dtlb_miss.S" -tl1_daprot: -#include "dtlb_prot.S" -tl1_fecc: BTRAPTL1(0x70) /* Fast-ECC on Cheetah */ -tl1_dcpe: BTRAPTL1(0x71) /* D-cache Parity Error on Cheetah+ */ -tl1_icpe: BTRAPTL1(0x72) /* I-cache Parity Error on Cheetah+ */ -tl1_resv073: BTRAPTL1(0x73) -tl1_resv074: BTRAPTL1(0x74) BTRAPTL1(0x75) BTRAPTL1(0x76) BTRAPTL1(0x77) -tl1_resv078: BTRAPTL1(0x78) BTRAPTL1(0x79) BTRAPTL1(0x7a) BTRAPTL1(0x7b) -tl1_resv07c: BTRAPTL1(0x7c) BTRAPTL1(0x7d) BTRAPTL1(0x7e) BTRAPTL1(0x7f) -tl1_s0n: SPILL_0_NORMAL -tl1_s1n: SPILL_1_NORMAL -tl1_s2n: SPILL_2_NORMAL -tl1_s3n: SPILL_3_NORMAL -tl1_s4n: SPILL_4_NORMAL -tl1_s5n: SPILL_5_NORMAL -tl1_s6n: SPILL_6_NORMAL -tl1_s7n: SPILL_7_NORMAL -tl1_s0o: SPILL_0_OTHER -tl1_s1o: SPILL_1_OTHER -tl1_s2o: SPILL_2_OTHER -tl1_s3o: SPILL_3_OTHER -tl1_s4o: SPILL_4_OTHER -tl1_s5o: SPILL_5_OTHER -tl1_s6o: SPILL_6_OTHER -tl1_s7o: SPILL_7_OTHER -tl1_f0n: FILL_0_NORMAL -tl1_f1n: FILL_1_NORMAL -tl1_f2n: FILL_2_NORMAL -tl1_f3n: FILL_3_NORMAL -tl1_f4n: FILL_4_NORMAL -tl1_f5n: FILL_5_NORMAL -tl1_f6n: FILL_6_NORMAL -tl1_f7n: FILL_7_NORMAL -tl1_f0o: FILL_0_OTHER -tl1_f1o: FILL_1_OTHER -tl1_f2o: FILL_2_OTHER -tl1_f3o: FILL_3_OTHER -tl1_f4o: FILL_4_OTHER -tl1_f5o: FILL_5_OTHER -tl1_f6o: FILL_6_OTHER -tl1_f7o: FILL_7_OTHER diff --git a/arch/sparc64/kernel/una_asm.S b/arch/sparc64/kernel/una_asm.S deleted file mode 100644 index be183fe41443..000000000000 --- a/arch/sparc64/kernel/una_asm.S +++ /dev/null @@ -1,146 +0,0 @@ -/* una_asm.S: Kernel unaligned trap assembler helpers. - * - * Copyright (C) 1996,2005 David S. Miller (davem@davemloft.net) - * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - - .text - - .globl __do_int_store -__do_int_store: - rd %asi, %o4 - wr %o3, 0, %asi - mov %o2, %g3 - cmp %o1, 2 - be,pn %icc, 2f - cmp %o1, 4 - be,pt %icc, 1f - srlx %g3, 24, %g2 - srlx %g3, 56, %g1 - srlx %g3, 48, %g7 -4: stba %g1, [%o0] %asi - srlx %g3, 40, %g1 -5: stba %g7, [%o0 + 1] %asi - srlx %g3, 32, %g7 -6: stba %g1, [%o0 + 2] %asi -7: stba %g7, [%o0 + 3] %asi - srlx %g3, 16, %g1 -8: stba %g2, [%o0 + 4] %asi - srlx %g3, 8, %g7 -9: stba %g1, [%o0 + 5] %asi -10: stba %g7, [%o0 + 6] %asi - ba,pt %xcc, 0f -11: stba %g3, [%o0 + 7] %asi -1: srl %g3, 16, %g7 -12: stba %g2, [%o0] %asi - srl %g3, 8, %g2 -13: stba %g7, [%o0 + 1] %asi -14: stba %g2, [%o0 + 2] %asi - ba,pt %xcc, 0f -15: stba %g3, [%o0 + 3] %asi -2: srl %g3, 8, %g2 -16: stba %g2, [%o0] %asi -17: stba %g3, [%o0 + 1] %asi -0: - wr %o4, 0x0, %asi - retl - mov 0, %o0 - .size __do_int_store, .-__do_int_store - - .section __ex_table,"a" - .word 4b, __retl_efault - .word 5b, __retl_efault - .word 6b, __retl_efault - .word 7b, __retl_efault - .word 8b, __retl_efault - .word 9b, __retl_efault - .word 10b, __retl_efault - .word 11b, __retl_efault - .word 12b, __retl_efault - .word 13b, __retl_efault - .word 14b, __retl_efault - .word 15b, __retl_efault - .word 16b, __retl_efault - .word 17b, __retl_efault - .previous - - .globl do_int_load -do_int_load: - rd %asi, %o5 - wr %o4, 0, %asi - cmp %o1, 8 - bge,pn %icc, 9f - cmp %o1, 4 - be,pt %icc, 6f -4: lduba [%o2] %asi, %g2 -5: lduba [%o2 + 1] %asi, %g3 - sll %g2, 8, %g2 - brz,pt %o3, 3f - add %g2, %g3, %g2 - sllx %g2, 48, %g2 - srax %g2, 48, %g2 -3: ba,pt %xcc, 0f - stx %g2, [%o0] -6: lduba [%o2 + 1] %asi, %g3 - sll %g2, 24, %g2 -7: lduba [%o2 + 2] %asi, %g7 - sll %g3, 16, %g3 -8: lduba [%o2 + 3] %asi, %g1 - sll %g7, 8, %g7 - or %g2, %g3, %g2 - or %g7, %g1, %g7 - or %g2, %g7, %g2 - brnz,a,pt %o3, 3f - sra %g2, 0, %g2 -3: ba,pt %xcc, 0f - stx %g2, [%o0] -9: lduba [%o2] %asi, %g2 -10: lduba [%o2 + 1] %asi, %g3 - sllx %g2, 56, %g2 -11: lduba [%o2 + 2] %asi, %g7 - sllx %g3, 48, %g3 -12: lduba [%o2 + 3] %asi, %g1 - sllx %g7, 40, %g7 - sllx %g1, 32, %g1 - or %g2, %g3, %g2 - or %g7, %g1, %g7 -13: lduba [%o2 + 4] %asi, %g3 - or %g2, %g7, %g7 -14: lduba [%o2 + 5] %asi, %g1 - sllx %g3, 24, %g3 -15: lduba [%o2 + 6] %asi, %g2 - sllx %g1, 16, %g1 - or %g7, %g3, %g7 -16: lduba [%o2 + 7] %asi, %g3 - sllx %g2, 8, %g2 - or %g7, %g1, %g7 - or %g2, %g3, %g2 - or %g7, %g2, %g7 - cmp %o1, 8 - be,a,pt %icc, 0f - stx %g7, [%o0] - srlx %g7, 32, %g2 - sra %g7, 0, %g7 - stx %g2, [%o0] - stx %g7, [%o0 + 8] -0: - wr %o5, 0x0, %asi - retl - mov 0, %o0 - .size __do_int_load, .-__do_int_load - - .section __ex_table,"a" - .word 4b, __retl_efault - .word 5b, __retl_efault - .word 6b, __retl_efault - .word 7b, __retl_efault - .word 8b, __retl_efault - .word 9b, __retl_efault - .word 10b, __retl_efault - .word 11b, __retl_efault - .word 12b, __retl_efault - .word 13b, __retl_efault - .word 14b, __retl_efault - .word 15b, __retl_efault - .word 16b, __retl_efault - .previous diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c deleted file mode 100644 index 203ddfad9f27..000000000000 --- a/arch/sparc64/kernel/unaligned.c +++ /dev/null @@ -1,690 +0,0 @@ -/* - * unaligned.c: Unaligned load/store trap handling with special - * cases for the kernel to do them more quickly. - * - * Copyright (C) 1996,2008 David S. Miller (davem@davemloft.net) - * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - - -#include <linux/jiffies.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/module.h> -#include <asm/asi.h> -#include <asm/ptrace.h> -#include <asm/pstate.h> -#include <asm/processor.h> -#include <asm/system.h> -#include <asm/uaccess.h> -#include <linux/smp.h> -#include <linux/bitops.h> -#include <asm/fpumacro.h> - -/* #define DEBUG_MNA */ - -enum direction { - load, /* ld, ldd, ldh, ldsh */ - store, /* st, std, sth, stsh */ - both, /* Swap, ldstub, cas, ... */ - fpld, - fpst, - invalid, -}; - -#ifdef DEBUG_MNA -static char *dirstrings[] = { - "load", "store", "both", "fpload", "fpstore", "invalid" -}; -#endif - -static inline enum direction decode_direction(unsigned int insn) -{ - unsigned long tmp = (insn >> 21) & 1; - - if (!tmp) - return load; - else { - switch ((insn>>19)&0xf) { - case 15: /* swap* */ - return both; - default: - return store; - } - } -} - -/* 16 = double-word, 8 = extra-word, 4 = word, 2 = half-word */ -static inline int decode_access_size(unsigned int insn) -{ - unsigned int tmp; - - tmp = ((insn >> 19) & 0xf); - if (tmp == 11 || tmp == 14) /* ldx/stx */ - return 8; - tmp &= 3; - if (!tmp) - return 4; - else if (tmp == 3) - return 16; /* ldd/std - Although it is actually 8 */ - else if (tmp == 2) - return 2; - else { - printk("Impossible unaligned trap. insn=%08x\n", insn); - die_if_kernel("Byte sized unaligned access?!?!", current_thread_info()->kregs); - - /* GCC should never warn that control reaches the end - * of this function without returning a value because - * die_if_kernel() is marked with attribute 'noreturn'. - * Alas, some versions do... - */ - - return 0; - } -} - -static inline int decode_asi(unsigned int insn, struct pt_regs *regs) -{ - if (insn & 0x800000) { - if (insn & 0x2000) - return (unsigned char)(regs->tstate >> 24); /* %asi */ - else - return (unsigned char)(insn >> 5); /* imm_asi */ - } else - return ASI_P; -} - -/* 0x400000 = signed, 0 = unsigned */ -static inline int decode_signedness(unsigned int insn) -{ - return (insn & 0x400000); -} - -static inline void maybe_flush_windows(unsigned int rs1, unsigned int rs2, - unsigned int rd, int from_kernel) -{ - if (rs2 >= 16 || rs1 >= 16 || rd >= 16) { - if (from_kernel != 0) - __asm__ __volatile__("flushw"); - else - flushw_user(); - } -} - -static inline long sign_extend_imm13(long imm) -{ - return imm << 51 >> 51; -} - -static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs) -{ - unsigned long value; - - if (reg < 16) - return (!reg ? 0 : regs->u_regs[reg]); - if (regs->tstate & TSTATE_PRIV) { - struct reg_window *win; - win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS); - value = win->locals[reg - 16]; - } else if (test_thread_flag(TIF_32BIT)) { - struct reg_window32 __user *win32; - win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); - get_user(value, &win32->locals[reg - 16]); - } else { - struct reg_window __user *win; - win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS); - get_user(value, &win->locals[reg - 16]); - } - return value; -} - -static unsigned long *fetch_reg_addr(unsigned int reg, struct pt_regs *regs) -{ - if (reg < 16) - return ®s->u_regs[reg]; - if (regs->tstate & TSTATE_PRIV) { - struct reg_window *win; - win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS); - return &win->locals[reg - 16]; - } else if (test_thread_flag(TIF_32BIT)) { - struct reg_window32 *win32; - win32 = (struct reg_window32 *)((unsigned long)((u32)regs->u_regs[UREG_FP])); - return (unsigned long *)&win32->locals[reg - 16]; - } else { - struct reg_window *win; - win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS); - return &win->locals[reg - 16]; - } -} - -unsigned long compute_effective_address(struct pt_regs *regs, - unsigned int insn, unsigned int rd) -{ - unsigned int rs1 = (insn >> 14) & 0x1f; - unsigned int rs2 = insn & 0x1f; - int from_kernel = (regs->tstate & TSTATE_PRIV) != 0; - - if (insn & 0x2000) { - maybe_flush_windows(rs1, 0, rd, from_kernel); - return (fetch_reg(rs1, regs) + sign_extend_imm13(insn)); - } else { - maybe_flush_windows(rs1, rs2, rd, from_kernel); - return (fetch_reg(rs1, regs) + fetch_reg(rs2, regs)); - } -} - -/* This is just to make gcc think die_if_kernel does return... */ -static void __used unaligned_panic(char *str, struct pt_regs *regs) -{ - die_if_kernel(str, regs); -} - -extern int do_int_load(unsigned long *dest_reg, int size, - unsigned long *saddr, int is_signed, int asi); - -extern int __do_int_store(unsigned long *dst_addr, int size, - unsigned long src_val, int asi); - -static inline int do_int_store(int reg_num, int size, unsigned long *dst_addr, - struct pt_regs *regs, int asi, int orig_asi) -{ - unsigned long zero = 0; - unsigned long *src_val_p = &zero; - unsigned long src_val; - - if (size == 16) { - size = 8; - zero = (((long)(reg_num ? - (unsigned)fetch_reg(reg_num, regs) : 0)) << 32) | - (unsigned)fetch_reg(reg_num + 1, regs); - } else if (reg_num) { - src_val_p = fetch_reg_addr(reg_num, regs); - } - src_val = *src_val_p; - if (unlikely(asi != orig_asi)) { - switch (size) { - case 2: - src_val = swab16(src_val); - break; - case 4: - src_val = swab32(src_val); - break; - case 8: - src_val = swab64(src_val); - break; - case 16: - default: - BUG(); - break; - }; - } - return __do_int_store(dst_addr, size, src_val, asi); -} - -static inline void advance(struct pt_regs *regs) -{ - regs->tpc = regs->tnpc; - regs->tnpc += 4; - if (test_thread_flag(TIF_32BIT)) { - regs->tpc &= 0xffffffff; - regs->tnpc &= 0xffffffff; - } -} - -static inline int floating_point_load_or_store_p(unsigned int insn) -{ - return (insn >> 24) & 1; -} - -static inline int ok_for_kernel(unsigned int insn) -{ - return !floating_point_load_or_store_p(insn); -} - -static void kernel_mna_trap_fault(int fixup_tstate_asi) -{ - struct pt_regs *regs = current_thread_info()->kern_una_regs; - unsigned int insn = current_thread_info()->kern_una_insn; - const struct exception_table_entry *entry; - - entry = search_exception_tables(regs->tpc); - if (!entry) { - unsigned long address; - - address = compute_effective_address(regs, insn, - ((insn >> 25) & 0x1f)); - if (address < PAGE_SIZE) { - printk(KERN_ALERT "Unable to handle kernel NULL " - "pointer dereference in mna handler"); - } else - printk(KERN_ALERT "Unable to handle kernel paging " - "request in mna handler"); - printk(KERN_ALERT " at virtual address %016lx\n",address); - printk(KERN_ALERT "current->{active_,}mm->context = %016lx\n", - (current->mm ? CTX_HWBITS(current->mm->context) : - CTX_HWBITS(current->active_mm->context))); - printk(KERN_ALERT "current->{active_,}mm->pgd = %016lx\n", - (current->mm ? (unsigned long) current->mm->pgd : - (unsigned long) current->active_mm->pgd)); - die_if_kernel("Oops", regs); - /* Not reached */ - } - regs->tpc = entry->fixup; - regs->tnpc = regs->tpc + 4; - - if (fixup_tstate_asi) { - regs->tstate &= ~TSTATE_ASI; - regs->tstate |= (ASI_AIUS << 24UL); - } -} - -static void log_unaligned(struct pt_regs *regs) -{ - static unsigned long count, last_time; - - if (time_after(jiffies, last_time + 5 * HZ)) - count = 0; - if (count < 5) { - last_time = jiffies; - count++; - printk("Kernel unaligned access at TPC[%lx] %pS\n", - regs->tpc, (void *) regs->tpc); - } -} - -asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn) -{ - enum direction dir = decode_direction(insn); - int size = decode_access_size(insn); - int orig_asi, asi; - - current_thread_info()->kern_una_regs = regs; - current_thread_info()->kern_una_insn = insn; - - orig_asi = asi = decode_asi(insn, regs); - - /* If this is a {get,put}_user() on an unaligned userspace pointer, - * just signal a fault and do not log the event. - */ - if (asi == ASI_AIUS) { - kernel_mna_trap_fault(0); - return; - } - - log_unaligned(regs); - - if (!ok_for_kernel(insn) || dir == both) { - printk("Unsupported unaligned load/store trap for kernel " - "at <%016lx>.\n", regs->tpc); - unaligned_panic("Kernel does fpu/atomic " - "unaligned load/store.", regs); - - kernel_mna_trap_fault(0); - } else { - unsigned long addr, *reg_addr; - int err; - - addr = compute_effective_address(regs, insn, - ((insn >> 25) & 0x1f)); -#ifdef DEBUG_MNA - printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] " - "retpc[%016lx]\n", - regs->tpc, dirstrings[dir], addr, size, - regs->u_regs[UREG_RETPC]); -#endif - switch (asi) { - case ASI_NL: - case ASI_AIUPL: - case ASI_AIUSL: - case ASI_PL: - case ASI_SL: - case ASI_PNFL: - case ASI_SNFL: - asi &= ~0x08; - break; - }; - switch (dir) { - case load: - reg_addr = fetch_reg_addr(((insn>>25)&0x1f), regs); - err = do_int_load(reg_addr, size, - (unsigned long *) addr, - decode_signedness(insn), asi); - if (likely(!err) && unlikely(asi != orig_asi)) { - unsigned long val_in = *reg_addr; - switch (size) { - case 2: - val_in = swab16(val_in); - break; - case 4: - val_in = swab32(val_in); - break; - case 8: - val_in = swab64(val_in); - break; - case 16: - default: - BUG(); - break; - }; - *reg_addr = val_in; - } - break; - - case store: - err = do_int_store(((insn>>25)&0x1f), size, - (unsigned long *) addr, regs, - asi, orig_asi); - break; - - default: - panic("Impossible kernel unaligned trap."); - /* Not reached... */ - } - if (unlikely(err)) - kernel_mna_trap_fault(1); - else - advance(regs); - } -} - -static char popc_helper[] = { -0, 1, 1, 2, 1, 2, 2, 3, -1, 2, 2, 3, 2, 3, 3, 4, -}; - -int handle_popc(u32 insn, struct pt_regs *regs) -{ - u64 value; - int ret, i, rd = ((insn >> 25) & 0x1f); - int from_kernel = (regs->tstate & TSTATE_PRIV) != 0; - - if (insn & 0x2000) { - maybe_flush_windows(0, 0, rd, from_kernel); - value = sign_extend_imm13(insn); - } else { - maybe_flush_windows(0, insn & 0x1f, rd, from_kernel); - value = fetch_reg(insn & 0x1f, regs); - } - for (ret = 0, i = 0; i < 16; i++) { - ret += popc_helper[value & 0xf]; - value >>= 4; - } - if (rd < 16) { - if (rd) - regs->u_regs[rd] = ret; - } else { - if (test_thread_flag(TIF_32BIT)) { - struct reg_window32 __user *win32; - win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); - put_user(ret, &win32->locals[rd - 16]); - } else { - struct reg_window __user *win; - win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS); - put_user(ret, &win->locals[rd - 16]); - } - } - advance(regs); - return 1; -} - -extern void do_fpother(struct pt_regs *regs); -extern void do_privact(struct pt_regs *regs); -extern void spitfire_data_access_exception(struct pt_regs *regs, - unsigned long sfsr, - unsigned long sfar); -extern void sun4v_data_access_exception(struct pt_regs *regs, - unsigned long addr, - unsigned long type_ctx); - -int handle_ldf_stq(u32 insn, struct pt_regs *regs) -{ - unsigned long addr = compute_effective_address(regs, insn, 0); - int freg = ((insn >> 25) & 0x1e) | ((insn >> 20) & 0x20); - struct fpustate *f = FPUSTATE; - int asi = decode_asi(insn, regs); - int flag = (freg < 32) ? FPRS_DL : FPRS_DU; - - save_and_clear_fpu(); - current_thread_info()->xfsr[0] &= ~0x1c000; - if (freg & 3) { - current_thread_info()->xfsr[0] |= (6 << 14) /* invalid_fp_register */; - do_fpother(regs); - return 0; - } - if (insn & 0x200000) { - /* STQ */ - u64 first = 0, second = 0; - - if (current_thread_info()->fpsaved[0] & flag) { - first = *(u64 *)&f->regs[freg]; - second = *(u64 *)&f->regs[freg+2]; - } - if (asi < 0x80) { - do_privact(regs); - return 1; - } - switch (asi) { - case ASI_P: - case ASI_S: break; - case ASI_PL: - case ASI_SL: - { - /* Need to convert endians */ - u64 tmp = __swab64p(&first); - - first = __swab64p(&second); - second = tmp; - break; - } - default: - if (tlb_type == hypervisor) - sun4v_data_access_exception(regs, addr, 0); - else - spitfire_data_access_exception(regs, 0, addr); - return 1; - } - if (put_user (first >> 32, (u32 __user *)addr) || - __put_user ((u32)first, (u32 __user *)(addr + 4)) || - __put_user (second >> 32, (u32 __user *)(addr + 8)) || - __put_user ((u32)second, (u32 __user *)(addr + 12))) { - if (tlb_type == hypervisor) - sun4v_data_access_exception(regs, addr, 0); - else - spitfire_data_access_exception(regs, 0, addr); - return 1; - } - } else { - /* LDF, LDDF, LDQF */ - u32 data[4] __attribute__ ((aligned(8))); - int size, i; - int err; - - if (asi < 0x80) { - do_privact(regs); - return 1; - } else if (asi > ASI_SNFL) { - if (tlb_type == hypervisor) - sun4v_data_access_exception(regs, addr, 0); - else - spitfire_data_access_exception(regs, 0, addr); - return 1; - } - switch (insn & 0x180000) { - case 0x000000: size = 1; break; - case 0x100000: size = 4; break; - default: size = 2; break; - } - for (i = 0; i < size; i++) - data[i] = 0; - - err = get_user (data[0], (u32 __user *) addr); - if (!err) { - for (i = 1; i < size; i++) - err |= __get_user (data[i], (u32 __user *)(addr + 4*i)); - } - if (err && !(asi & 0x2 /* NF */)) { - if (tlb_type == hypervisor) - sun4v_data_access_exception(regs, addr, 0); - else - spitfire_data_access_exception(regs, 0, addr); - return 1; - } - if (asi & 0x8) /* Little */ { - u64 tmp; - - switch (size) { - case 1: data[0] = le32_to_cpup(data + 0); break; - default:*(u64 *)(data + 0) = le64_to_cpup((u64 *)(data + 0)); - break; - case 4: tmp = le64_to_cpup((u64 *)(data + 0)); - *(u64 *)(data + 0) = le64_to_cpup((u64 *)(data + 2)); - *(u64 *)(data + 2) = tmp; - break; - } - } - if (!(current_thread_info()->fpsaved[0] & FPRS_FEF)) { - current_thread_info()->fpsaved[0] = FPRS_FEF; - current_thread_info()->gsr[0] = 0; - } - if (!(current_thread_info()->fpsaved[0] & flag)) { - if (freg < 32) - memset(f->regs, 0, 32*sizeof(u32)); - else - memset(f->regs+32, 0, 32*sizeof(u32)); - } - memcpy(f->regs + freg, data, size * 4); - current_thread_info()->fpsaved[0] |= flag; - } - advance(regs); - return 1; -} - -void handle_ld_nf(u32 insn, struct pt_regs *regs) -{ - int rd = ((insn >> 25) & 0x1f); - int from_kernel = (regs->tstate & TSTATE_PRIV) != 0; - unsigned long *reg; - - maybe_flush_windows(0, 0, rd, from_kernel); - reg = fetch_reg_addr(rd, regs); - if (from_kernel || rd < 16) { - reg[0] = 0; - if ((insn & 0x780000) == 0x180000) - reg[1] = 0; - } else if (test_thread_flag(TIF_32BIT)) { - put_user(0, (int __user *) reg); - if ((insn & 0x780000) == 0x180000) - put_user(0, ((int __user *) reg) + 1); - } else { - put_user(0, (unsigned long __user *) reg); - if ((insn & 0x780000) == 0x180000) - put_user(0, (unsigned long __user *) reg + 1); - } - advance(regs); -} - -void handle_lddfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr) -{ - unsigned long pc = regs->tpc; - unsigned long tstate = regs->tstate; - u32 insn; - u32 first, second; - u64 value; - u8 freg; - int flag; - struct fpustate *f = FPUSTATE; - - if (tstate & TSTATE_PRIV) - die_if_kernel("lddfmna from kernel", regs); - if (test_thread_flag(TIF_32BIT)) - pc = (u32)pc; - if (get_user(insn, (u32 __user *) pc) != -EFAULT) { - int asi = decode_asi(insn, regs); - if ((asi > ASI_SNFL) || - (asi < ASI_P)) - goto daex; - if (get_user(first, (u32 __user *)sfar) || - get_user(second, (u32 __user *)(sfar + 4))) { - if (asi & 0x2) /* NF */ { - first = 0; second = 0; - } else - goto daex; - } - save_and_clear_fpu(); - freg = ((insn >> 25) & 0x1e) | ((insn >> 20) & 0x20); - value = (((u64)first) << 32) | second; - if (asi & 0x8) /* Little */ - value = __swab64p(&value); - flag = (freg < 32) ? FPRS_DL : FPRS_DU; - if (!(current_thread_info()->fpsaved[0] & FPRS_FEF)) { - current_thread_info()->fpsaved[0] = FPRS_FEF; - current_thread_info()->gsr[0] = 0; - } - if (!(current_thread_info()->fpsaved[0] & flag)) { - if (freg < 32) - memset(f->regs, 0, 32*sizeof(u32)); - else - memset(f->regs+32, 0, 32*sizeof(u32)); - } - *(u64 *)(f->regs + freg) = value; - current_thread_info()->fpsaved[0] |= flag; - } else { -daex: - if (tlb_type == hypervisor) - sun4v_data_access_exception(regs, sfar, sfsr); - else - spitfire_data_access_exception(regs, sfsr, sfar); - return; - } - advance(regs); - return; -} - -void handle_stdfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr) -{ - unsigned long pc = regs->tpc; - unsigned long tstate = regs->tstate; - u32 insn; - u64 value; - u8 freg; - int flag; - struct fpustate *f = FPUSTATE; - - if (tstate & TSTATE_PRIV) - die_if_kernel("stdfmna from kernel", regs); - if (test_thread_flag(TIF_32BIT)) - pc = (u32)pc; - if (get_user(insn, (u32 __user *) pc) != -EFAULT) { - int asi = decode_asi(insn, regs); - freg = ((insn >> 25) & 0x1e) | ((insn >> 20) & 0x20); - value = 0; - flag = (freg < 32) ? FPRS_DL : FPRS_DU; - if ((asi > ASI_SNFL) || - (asi < ASI_P)) - goto daex; - save_and_clear_fpu(); - if (current_thread_info()->fpsaved[0] & flag) - value = *(u64 *)&f->regs[freg]; - switch (asi) { - case ASI_P: - case ASI_S: break; - case ASI_PL: - case ASI_SL: - value = __swab64p(&value); break; - default: goto daex; - } - if (put_user (value >> 32, (u32 __user *) sfar) || - __put_user ((u32)value, (u32 __user *)(sfar + 4))) - goto daex; - } else { -daex: - if (tlb_type == hypervisor) - sun4v_data_access_exception(regs, sfar, sfsr); - else - spitfire_data_access_exception(regs, sfsr, sfar); - return; - } - advance(regs); - return; -} diff --git a/arch/sparc64/kernel/us2e_cpufreq.c b/arch/sparc64/kernel/us2e_cpufreq.c deleted file mode 100644 index 791c15138f3a..000000000000 --- a/arch/sparc64/kernel/us2e_cpufreq.c +++ /dev/null @@ -1,413 +0,0 @@ -/* us2e_cpufreq.c: UltraSPARC-IIe cpu frequency support - * - * Copyright (C) 2003 David S. Miller (davem@redhat.com) - * - * Many thanks to Dominik Brodowski for fixing up the cpufreq - * infrastructure in order to make this driver easier to implement. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <linux/cpufreq.h> -#include <linux/threads.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/init.h> - -#include <asm/asi.h> -#include <asm/timer.h> - -static struct cpufreq_driver *cpufreq_us2e_driver; - -struct us2e_freq_percpu_info { - struct cpufreq_frequency_table table[6]; -}; - -/* Indexed by cpu number. */ -static struct us2e_freq_percpu_info *us2e_freq_table; - -#define HBIRD_MEM_CNTL0_ADDR 0x1fe0000f010UL -#define HBIRD_ESTAR_MODE_ADDR 0x1fe0000f080UL - -/* UltraSPARC-IIe has five dividers: 1, 2, 4, 6, and 8. These are controlled - * in the ESTAR mode control register. - */ -#define ESTAR_MODE_DIV_1 0x0000000000000000UL -#define ESTAR_MODE_DIV_2 0x0000000000000001UL -#define ESTAR_MODE_DIV_4 0x0000000000000003UL -#define ESTAR_MODE_DIV_6 0x0000000000000002UL -#define ESTAR_MODE_DIV_8 0x0000000000000004UL -#define ESTAR_MODE_DIV_MASK 0x0000000000000007UL - -#define MCTRL0_SREFRESH_ENAB 0x0000000000010000UL -#define MCTRL0_REFR_COUNT_MASK 0x0000000000007f00UL -#define MCTRL0_REFR_COUNT_SHIFT 8 -#define MCTRL0_REFR_INTERVAL 7800 -#define MCTRL0_REFR_CLKS_P_CNT 64 - -static unsigned long read_hbreg(unsigned long addr) -{ - unsigned long ret; - - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=&r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - return ret; -} - -static void write_hbreg(unsigned long addr, unsigned long val) -{ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (val), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) - : "memory"); - if (addr == HBIRD_ESTAR_MODE_ADDR) { - /* Need to wait 16 clock cycles for the PLL to lock. */ - udelay(1); - } -} - -static void self_refresh_ctl(int enable) -{ - unsigned long mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR); - - if (enable) - mctrl |= MCTRL0_SREFRESH_ENAB; - else - mctrl &= ~MCTRL0_SREFRESH_ENAB; - write_hbreg(HBIRD_MEM_CNTL0_ADDR, mctrl); - (void) read_hbreg(HBIRD_MEM_CNTL0_ADDR); -} - -static void frob_mem_refresh(int cpu_slowing_down, - unsigned long clock_tick, - unsigned long old_divisor, unsigned long divisor) -{ - unsigned long old_refr_count, refr_count, mctrl; - - refr_count = (clock_tick * MCTRL0_REFR_INTERVAL); - refr_count /= (MCTRL0_REFR_CLKS_P_CNT * divisor * 1000000000UL); - - mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR); - old_refr_count = (mctrl & MCTRL0_REFR_COUNT_MASK) - >> MCTRL0_REFR_COUNT_SHIFT; - - mctrl &= ~MCTRL0_REFR_COUNT_MASK; - mctrl |= refr_count << MCTRL0_REFR_COUNT_SHIFT; - write_hbreg(HBIRD_MEM_CNTL0_ADDR, mctrl); - mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR); - - if (cpu_slowing_down && !(mctrl & MCTRL0_SREFRESH_ENAB)) { - unsigned long usecs; - - /* We have to wait for both refresh counts (old - * and new) to go to zero. - */ - usecs = (MCTRL0_REFR_CLKS_P_CNT * - (refr_count + old_refr_count) * - 1000000UL * - old_divisor) / clock_tick; - udelay(usecs + 1UL); - } -} - -static void us2e_transition(unsigned long estar, unsigned long new_bits, - unsigned long clock_tick, - unsigned long old_divisor, unsigned long divisor) -{ - unsigned long flags; - - local_irq_save(flags); - - estar &= ~ESTAR_MODE_DIV_MASK; - - /* This is based upon the state transition diagram in the IIe manual. */ - if (old_divisor == 2 && divisor == 1) { - self_refresh_ctl(0); - write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits); - frob_mem_refresh(0, clock_tick, old_divisor, divisor); - } else if (old_divisor == 1 && divisor == 2) { - frob_mem_refresh(1, clock_tick, old_divisor, divisor); - write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits); - self_refresh_ctl(1); - } else if (old_divisor == 1 && divisor > 2) { - us2e_transition(estar, ESTAR_MODE_DIV_2, clock_tick, - 1, 2); - us2e_transition(estar, new_bits, clock_tick, - 2, divisor); - } else if (old_divisor > 2 && divisor == 1) { - us2e_transition(estar, ESTAR_MODE_DIV_2, clock_tick, - old_divisor, 2); - us2e_transition(estar, new_bits, clock_tick, - 2, divisor); - } else if (old_divisor < divisor) { - frob_mem_refresh(0, clock_tick, old_divisor, divisor); - write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits); - } else if (old_divisor > divisor) { - write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits); - frob_mem_refresh(1, clock_tick, old_divisor, divisor); - } else { - BUG(); - } - - local_irq_restore(flags); -} - -static unsigned long index_to_estar_mode(unsigned int index) -{ - switch (index) { - case 0: - return ESTAR_MODE_DIV_1; - - case 1: - return ESTAR_MODE_DIV_2; - - case 2: - return ESTAR_MODE_DIV_4; - - case 3: - return ESTAR_MODE_DIV_6; - - case 4: - return ESTAR_MODE_DIV_8; - - default: - BUG(); - }; -} - -static unsigned long index_to_divisor(unsigned int index) -{ - switch (index) { - case 0: - return 1; - - case 1: - return 2; - - case 2: - return 4; - - case 3: - return 6; - - case 4: - return 8; - - default: - BUG(); - }; -} - -static unsigned long estar_to_divisor(unsigned long estar) -{ - unsigned long ret; - - switch (estar & ESTAR_MODE_DIV_MASK) { - case ESTAR_MODE_DIV_1: - ret = 1; - break; - case ESTAR_MODE_DIV_2: - ret = 2; - break; - case ESTAR_MODE_DIV_4: - ret = 4; - break; - case ESTAR_MODE_DIV_6: - ret = 6; - break; - case ESTAR_MODE_DIV_8: - ret = 8; - break; - default: - BUG(); - }; - - return ret; -} - -static unsigned int us2e_freq_get(unsigned int cpu) -{ - cpumask_t cpus_allowed; - unsigned long clock_tick, estar; - - if (!cpu_online(cpu)) - return 0; - - cpus_allowed = current->cpus_allowed; - set_cpus_allowed(current, cpumask_of_cpu(cpu)); - - clock_tick = sparc64_get_clock_tick(cpu) / 1000; - estar = read_hbreg(HBIRD_ESTAR_MODE_ADDR); - - set_cpus_allowed(current, cpus_allowed); - - return clock_tick / estar_to_divisor(estar); -} - -static void us2e_set_cpu_divider_index(unsigned int cpu, unsigned int index) -{ - unsigned long new_bits, new_freq; - unsigned long clock_tick, divisor, old_divisor, estar; - cpumask_t cpus_allowed; - struct cpufreq_freqs freqs; - - if (!cpu_online(cpu)) - return; - - cpus_allowed = current->cpus_allowed; - set_cpus_allowed(current, cpumask_of_cpu(cpu)); - - new_freq = clock_tick = sparc64_get_clock_tick(cpu) / 1000; - new_bits = index_to_estar_mode(index); - divisor = index_to_divisor(index); - new_freq /= divisor; - - estar = read_hbreg(HBIRD_ESTAR_MODE_ADDR); - - old_divisor = estar_to_divisor(estar); - - freqs.old = clock_tick / old_divisor; - freqs.new = new_freq; - freqs.cpu = cpu; - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - if (old_divisor != divisor) - us2e_transition(estar, new_bits, clock_tick * 1000, - old_divisor, divisor); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - set_cpus_allowed(current, cpus_allowed); -} - -static int us2e_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int new_index = 0; - - if (cpufreq_frequency_table_target(policy, - &us2e_freq_table[policy->cpu].table[0], - target_freq, relation, &new_index)) - return -EINVAL; - - us2e_set_cpu_divider_index(policy->cpu, new_index); - - return 0; -} - -static int us2e_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - &us2e_freq_table[policy->cpu].table[0]); -} - -static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy) -{ - unsigned int cpu = policy->cpu; - unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; - struct cpufreq_frequency_table *table = - &us2e_freq_table[cpu].table[0]; - - table[0].index = 0; - table[0].frequency = clock_tick / 1; - table[1].index = 1; - table[1].frequency = clock_tick / 2; - table[2].index = 2; - table[2].frequency = clock_tick / 4; - table[2].index = 3; - table[2].frequency = clock_tick / 6; - table[2].index = 4; - table[2].frequency = clock_tick / 8; - table[2].index = 5; - table[3].frequency = CPUFREQ_TABLE_END; - - policy->cpuinfo.transition_latency = 0; - policy->cur = clock_tick; - - return cpufreq_frequency_table_cpuinfo(policy, table); -} - -static int us2e_freq_cpu_exit(struct cpufreq_policy *policy) -{ - if (cpufreq_us2e_driver) - us2e_set_cpu_divider_index(policy->cpu, 0); - - return 0; -} - -static int __init us2e_freq_init(void) -{ - unsigned long manuf, impl, ver; - int ret; - - if (tlb_type != spitfire) - return -ENODEV; - - __asm__("rdpr %%ver, %0" : "=r" (ver)); - manuf = ((ver >> 48) & 0xffff); - impl = ((ver >> 32) & 0xffff); - - if (manuf == 0x17 && impl == 0x13) { - struct cpufreq_driver *driver; - - ret = -ENOMEM; - driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL); - if (!driver) - goto err_out; - - us2e_freq_table = kzalloc( - (NR_CPUS * sizeof(struct us2e_freq_percpu_info)), - GFP_KERNEL); - if (!us2e_freq_table) - goto err_out; - - driver->init = us2e_freq_cpu_init; - driver->verify = us2e_freq_verify; - driver->target = us2e_freq_target; - driver->get = us2e_freq_get; - driver->exit = us2e_freq_cpu_exit; - driver->owner = THIS_MODULE, - strcpy(driver->name, "UltraSPARC-IIe"); - - cpufreq_us2e_driver = driver; - ret = cpufreq_register_driver(driver); - if (ret) - goto err_out; - - return 0; - -err_out: - if (driver) { - kfree(driver); - cpufreq_us2e_driver = NULL; - } - kfree(us2e_freq_table); - us2e_freq_table = NULL; - return ret; - } - - return -ENODEV; -} - -static void __exit us2e_freq_exit(void) -{ - if (cpufreq_us2e_driver) { - cpufreq_unregister_driver(cpufreq_us2e_driver); - kfree(cpufreq_us2e_driver); - cpufreq_us2e_driver = NULL; - kfree(us2e_freq_table); - us2e_freq_table = NULL; - } -} - -MODULE_AUTHOR("David S. Miller <davem@redhat.com>"); -MODULE_DESCRIPTION("cpufreq driver for UltraSPARC-IIe"); -MODULE_LICENSE("GPL"); - -module_init(us2e_freq_init); -module_exit(us2e_freq_exit); diff --git a/arch/sparc64/kernel/us3_cpufreq.c b/arch/sparc64/kernel/us3_cpufreq.c deleted file mode 100644 index 365b6464e2ce..000000000000 --- a/arch/sparc64/kernel/us3_cpufreq.c +++ /dev/null @@ -1,274 +0,0 @@ -/* us3_cpufreq.c: UltraSPARC-III cpu frequency support - * - * Copyright (C) 2003 David S. Miller (davem@redhat.com) - * - * Many thanks to Dominik Brodowski for fixing up the cpufreq - * infrastructure in order to make this driver easier to implement. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <linux/cpufreq.h> -#include <linux/threads.h> -#include <linux/slab.h> -#include <linux/init.h> - -#include <asm/head.h> -#include <asm/timer.h> - -static struct cpufreq_driver *cpufreq_us3_driver; - -struct us3_freq_percpu_info { - struct cpufreq_frequency_table table[4]; -}; - -/* Indexed by cpu number. */ -static struct us3_freq_percpu_info *us3_freq_table; - -/* UltraSPARC-III has three dividers: 1, 2, and 32. These are controlled - * in the Safari config register. - */ -#define SAFARI_CFG_DIV_1 0x0000000000000000UL -#define SAFARI_CFG_DIV_2 0x0000000040000000UL -#define SAFARI_CFG_DIV_32 0x0000000080000000UL -#define SAFARI_CFG_DIV_MASK 0x00000000C0000000UL - -static unsigned long read_safari_cfg(void) -{ - unsigned long ret; - - __asm__ __volatile__("ldxa [%%g0] %1, %0" - : "=&r" (ret) - : "i" (ASI_SAFARI_CONFIG)); - return ret; -} - -static void write_safari_cfg(unsigned long val) -{ - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (val), "i" (ASI_SAFARI_CONFIG) - : "memory"); -} - -static unsigned long get_current_freq(unsigned int cpu, unsigned long safari_cfg) -{ - unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; - unsigned long ret; - - switch (safari_cfg & SAFARI_CFG_DIV_MASK) { - case SAFARI_CFG_DIV_1: - ret = clock_tick / 1; - break; - case SAFARI_CFG_DIV_2: - ret = clock_tick / 2; - break; - case SAFARI_CFG_DIV_32: - ret = clock_tick / 32; - break; - default: - BUG(); - }; - - return ret; -} - -static unsigned int us3_freq_get(unsigned int cpu) -{ - cpumask_t cpus_allowed; - unsigned long reg; - unsigned int ret; - - if (!cpu_online(cpu)) - return 0; - - cpus_allowed = current->cpus_allowed; - set_cpus_allowed(current, cpumask_of_cpu(cpu)); - - reg = read_safari_cfg(); - ret = get_current_freq(cpu, reg); - - set_cpus_allowed(current, cpus_allowed); - - return ret; -} - -static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index) -{ - unsigned long new_bits, new_freq, reg; - cpumask_t cpus_allowed; - struct cpufreq_freqs freqs; - - if (!cpu_online(cpu)) - return; - - cpus_allowed = current->cpus_allowed; - set_cpus_allowed(current, cpumask_of_cpu(cpu)); - - new_freq = sparc64_get_clock_tick(cpu) / 1000; - switch (index) { - case 0: - new_bits = SAFARI_CFG_DIV_1; - new_freq /= 1; - break; - case 1: - new_bits = SAFARI_CFG_DIV_2; - new_freq /= 2; - break; - case 2: - new_bits = SAFARI_CFG_DIV_32; - new_freq /= 32; - break; - - default: - BUG(); - }; - - reg = read_safari_cfg(); - - freqs.old = get_current_freq(cpu, reg); - freqs.new = new_freq; - freqs.cpu = cpu; - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - reg &= ~SAFARI_CFG_DIV_MASK; - reg |= new_bits; - write_safari_cfg(reg); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - set_cpus_allowed(current, cpus_allowed); -} - -static int us3_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int new_index = 0; - - if (cpufreq_frequency_table_target(policy, - &us3_freq_table[policy->cpu].table[0], - target_freq, - relation, - &new_index)) - return -EINVAL; - - us3_set_cpu_divider_index(policy->cpu, new_index); - - return 0; -} - -static int us3_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - &us3_freq_table[policy->cpu].table[0]); -} - -static int __init us3_freq_cpu_init(struct cpufreq_policy *policy) -{ - unsigned int cpu = policy->cpu; - unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; - struct cpufreq_frequency_table *table = - &us3_freq_table[cpu].table[0]; - - table[0].index = 0; - table[0].frequency = clock_tick / 1; - table[1].index = 1; - table[1].frequency = clock_tick / 2; - table[2].index = 2; - table[2].frequency = clock_tick / 32; - table[3].index = 0; - table[3].frequency = CPUFREQ_TABLE_END; - - policy->cpuinfo.transition_latency = 0; - policy->cur = clock_tick; - - return cpufreq_frequency_table_cpuinfo(policy, table); -} - -static int us3_freq_cpu_exit(struct cpufreq_policy *policy) -{ - if (cpufreq_us3_driver) - us3_set_cpu_divider_index(policy->cpu, 0); - - return 0; -} - -static int __init us3_freq_init(void) -{ - unsigned long manuf, impl, ver; - int ret; - - if (tlb_type != cheetah && tlb_type != cheetah_plus) - return -ENODEV; - - __asm__("rdpr %%ver, %0" : "=r" (ver)); - manuf = ((ver >> 48) & 0xffff); - impl = ((ver >> 32) & 0xffff); - - if (manuf == CHEETAH_MANUF && - (impl == CHEETAH_IMPL || - impl == CHEETAH_PLUS_IMPL || - impl == JAGUAR_IMPL || - impl == PANTHER_IMPL)) { - struct cpufreq_driver *driver; - - ret = -ENOMEM; - driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL); - if (!driver) - goto err_out; - - us3_freq_table = kzalloc( - (NR_CPUS * sizeof(struct us3_freq_percpu_info)), - GFP_KERNEL); - if (!us3_freq_table) - goto err_out; - - driver->init = us3_freq_cpu_init; - driver->verify = us3_freq_verify; - driver->target = us3_freq_target; - driver->get = us3_freq_get; - driver->exit = us3_freq_cpu_exit; - driver->owner = THIS_MODULE, - strcpy(driver->name, "UltraSPARC-III"); - - cpufreq_us3_driver = driver; - ret = cpufreq_register_driver(driver); - if (ret) - goto err_out; - - return 0; - -err_out: - if (driver) { - kfree(driver); - cpufreq_us3_driver = NULL; - } - kfree(us3_freq_table); - us3_freq_table = NULL; - return ret; - } - - return -ENODEV; -} - -static void __exit us3_freq_exit(void) -{ - if (cpufreq_us3_driver) { - cpufreq_unregister_driver(cpufreq_us3_driver); - kfree(cpufreq_us3_driver); - cpufreq_us3_driver = NULL; - kfree(us3_freq_table); - us3_freq_table = NULL; - } -} - -MODULE_AUTHOR("David S. Miller <davem@redhat.com>"); -MODULE_DESCRIPTION("cpufreq driver for UltraSPARC-III"); -MODULE_LICENSE("GPL"); - -module_init(us3_freq_init); -module_exit(us3_freq_exit); diff --git a/arch/sparc64/kernel/utrap.S b/arch/sparc64/kernel/utrap.S deleted file mode 100644 index b7f0f3f3a909..000000000000 --- a/arch/sparc64/kernel/utrap.S +++ /dev/null @@ -1,29 +0,0 @@ - .globl utrap_trap - .type utrap_trap,#function -utrap_trap: /* %g3=handler,%g4=level */ - TRAP_LOAD_THREAD_REG(%g6, %g1) - ldx [%g6 + TI_UTRAPS], %g1 - brnz,pt %g1, invoke_utrap - nop - - ba,pt %xcc, etrap - rd %pc, %g7 - mov %l4, %o1 - call bad_trap - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - -invoke_utrap: - sllx %g3, 3, %g3 - ldx [%g1 + %g3], %g1 - save %sp, -128, %sp - rdpr %tstate, %l6 - rdpr %cwp, %l7 - andn %l6, TSTATE_CWP, %l6 - wrpr %l6, %l7, %tstate - rdpr %tpc, %l6 - rdpr %tnpc, %l7 - wrpr %g1, 0, %tnpc - done - .size utrap_trap,.-utrap_trap diff --git a/arch/sparc64/kernel/vio.c b/arch/sparc64/kernel/vio.c deleted file mode 100644 index 92b1f8ec01de..000000000000 --- a/arch/sparc64/kernel/vio.c +++ /dev/null @@ -1,451 +0,0 @@ -/* vio.c: Virtual I/O channel devices probing infrastructure. - * - * Copyright (c) 2003-2005 IBM Corp. - * Dave Engebretsen engebret@us.ibm.com - * Santiago Leon santil@us.ibm.com - * Hollis Blanchard <hollisb@us.ibm.com> - * Stephen Rothwell - * - * Adapted to sparc64 by David S. Miller davem@davemloft.net - */ - -#include <linux/kernel.h> -#include <linux/irq.h> -#include <linux/init.h> - -#include <asm/mdesc.h> -#include <asm/vio.h> - -static const struct vio_device_id *vio_match_device( - const struct vio_device_id *matches, - const struct vio_dev *dev) -{ - const char *type, *compat; - int len; - - type = dev->type; - compat = dev->compat; - len = dev->compat_len; - - while (matches->type[0] || matches->compat[0]) { - int match = 1; - if (matches->type[0]) - match &= !strcmp(matches->type, type); - - if (matches->compat[0]) { - match &= len && - of_find_in_proplist(compat, matches->compat, len); - } - if (match) - return matches; - matches++; - } - return NULL; -} - -static int vio_bus_match(struct device *dev, struct device_driver *drv) -{ - struct vio_dev *vio_dev = to_vio_dev(dev); - struct vio_driver *vio_drv = to_vio_driver(drv); - const struct vio_device_id *matches = vio_drv->id_table; - - if (!matches) - return 0; - - return vio_match_device(matches, vio_dev) != NULL; -} - -static int vio_device_probe(struct device *dev) -{ - struct vio_dev *vdev = to_vio_dev(dev); - struct vio_driver *drv = to_vio_driver(dev->driver); - const struct vio_device_id *id; - int error = -ENODEV; - - if (drv->probe) { - id = vio_match_device(drv->id_table, vdev); - if (id) - error = drv->probe(vdev, id); - } - - return error; -} - -static int vio_device_remove(struct device *dev) -{ - struct vio_dev *vdev = to_vio_dev(dev); - struct vio_driver *drv = to_vio_driver(dev->driver); - - if (drv->remove) - return drv->remove(vdev); - - return 1; -} - -static ssize_t devspec_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct vio_dev *vdev = to_vio_dev(dev); - const char *str = "none"; - - if (!strcmp(vdev->type, "vnet-port")) - str = "vnet"; - else if (!strcmp(vdev->type, "vdc-port")) - str = "vdisk"; - - return sprintf(buf, "%s\n", str); -} - -static ssize_t type_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct vio_dev *vdev = to_vio_dev(dev); - return sprintf(buf, "%s\n", vdev->type); -} - -static struct device_attribute vio_dev_attrs[] = { - __ATTR_RO(devspec), - __ATTR_RO(type), - __ATTR_NULL -}; - -static struct bus_type vio_bus_type = { - .name = "vio", - .dev_attrs = vio_dev_attrs, - .match = vio_bus_match, - .probe = vio_device_probe, - .remove = vio_device_remove, -}; - -int vio_register_driver(struct vio_driver *viodrv) -{ - viodrv->driver.bus = &vio_bus_type; - - return driver_register(&viodrv->driver); -} -EXPORT_SYMBOL(vio_register_driver); - -void vio_unregister_driver(struct vio_driver *viodrv) -{ - driver_unregister(&viodrv->driver); -} -EXPORT_SYMBOL(vio_unregister_driver); - -static void vio_dev_release(struct device *dev) -{ - kfree(to_vio_dev(dev)); -} - -static ssize_t -show_pciobppath_attr(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct vio_dev *vdev; - struct device_node *dp; - - vdev = to_vio_dev(dev); - dp = vdev->dp; - - return snprintf (buf, PAGE_SIZE, "%s\n", dp->full_name); -} - -static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH, - show_pciobppath_attr, NULL); - -static struct device_node *cdev_node; - -static struct vio_dev *root_vdev; -static u64 cdev_cfg_handle; - -static void vio_fill_channel_info(struct mdesc_handle *hp, u64 mp, - struct vio_dev *vdev) -{ - u64 a; - - mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_FWD) { - const u64 *chan_id; - const u64 *irq; - u64 target; - - target = mdesc_arc_target(hp, a); - - irq = mdesc_get_property(hp, target, "tx-ino", NULL); - if (irq) - vdev->tx_irq = sun4v_build_virq(cdev_cfg_handle, *irq); - - irq = mdesc_get_property(hp, target, "rx-ino", NULL); - if (irq) - vdev->rx_irq = sun4v_build_virq(cdev_cfg_handle, *irq); - - chan_id = mdesc_get_property(hp, target, "id", NULL); - if (chan_id) - vdev->channel_id = *chan_id; - } -} - -static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp, - struct device *parent) -{ - const char *type, *compat, *bus_id_name; - struct device_node *dp; - struct vio_dev *vdev; - int err, tlen, clen; - const u64 *id, *cfg_handle; - u64 a; - - type = mdesc_get_property(hp, mp, "device-type", &tlen); - if (!type) { - type = mdesc_get_property(hp, mp, "name", &tlen); - if (!type) { - type = mdesc_node_name(hp, mp); - tlen = strlen(type) + 1; - } - } - if (tlen > VIO_MAX_TYPE_LEN) { - printk(KERN_ERR "VIO: Type string [%s] is too long.\n", - type); - return NULL; - } - - id = mdesc_get_property(hp, mp, "id", NULL); - - cfg_handle = NULL; - mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_BACK) { - u64 target; - - target = mdesc_arc_target(hp, a); - cfg_handle = mdesc_get_property(hp, target, - "cfg-handle", NULL); - if (cfg_handle) - break; - } - - bus_id_name = type; - if (!strcmp(type, "domain-services-port")) - bus_id_name = "ds"; - - if (strlen(bus_id_name) >= BUS_ID_SIZE - 4) { - printk(KERN_ERR "VIO: bus_id_name [%s] is too long.\n", - bus_id_name); - return NULL; - } - - compat = mdesc_get_property(hp, mp, "device-type", &clen); - if (!compat) { - clen = 0; - } else if (clen > VIO_MAX_COMPAT_LEN) { - printk(KERN_ERR "VIO: Compat len %d for [%s] is too long.\n", - clen, type); - return NULL; - } - - vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); - if (!vdev) { - printk(KERN_ERR "VIO: Could not allocate vio_dev\n"); - return NULL; - } - - vdev->mp = mp; - memcpy(vdev->type, type, tlen); - if (compat) - memcpy(vdev->compat, compat, clen); - else - memset(vdev->compat, 0, sizeof(vdev->compat)); - vdev->compat_len = clen; - - vdev->channel_id = ~0UL; - vdev->tx_irq = ~0; - vdev->rx_irq = ~0; - - vio_fill_channel_info(hp, mp, vdev); - - if (!id) { - dev_set_name(&vdev->dev, "%s", bus_id_name); - vdev->dev_no = ~(u64)0; - } else if (!cfg_handle) { - dev_set_name(&vdev->dev, "%s-%lu", bus_id_name, *id); - vdev->dev_no = *id; - } else { - dev_set_name(&vdev->dev, "%s-%lu-%lu", bus_id_name, - *cfg_handle, *id); - vdev->dev_no = *cfg_handle; - } - - vdev->dev.parent = parent; - vdev->dev.bus = &vio_bus_type; - vdev->dev.release = vio_dev_release; - - if (parent == NULL) { - dp = cdev_node; - } else if (to_vio_dev(parent) == root_vdev) { - dp = of_get_next_child(cdev_node, NULL); - while (dp) { - if (!strcmp(dp->type, type)) - break; - - dp = of_get_next_child(cdev_node, dp); - } - } else { - dp = to_vio_dev(parent)->dp; - } - vdev->dp = dp; - - printk(KERN_INFO "VIO: Adding device %s\n", dev_name(&vdev->dev)); - - err = device_register(&vdev->dev); - if (err) { - printk(KERN_ERR "VIO: Could not register device %s, err=%d\n", - dev_name(&vdev->dev), err); - kfree(vdev); - return NULL; - } - if (vdev->dp) - err = sysfs_create_file(&vdev->dev.kobj, - &dev_attr_obppath.attr); - - return vdev; -} - -static void vio_add(struct mdesc_handle *hp, u64 node) -{ - (void) vio_create_one(hp, node, &root_vdev->dev); -} - -static int vio_md_node_match(struct device *dev, void *arg) -{ - struct vio_dev *vdev = to_vio_dev(dev); - - if (vdev->mp == (u64) arg) - return 1; - - return 0; -} - -static void vio_remove(struct mdesc_handle *hp, u64 node) -{ - struct device *dev; - - dev = device_find_child(&root_vdev->dev, (void *) node, - vio_md_node_match); - if (dev) { - printk(KERN_INFO "VIO: Removing device %s\n", dev_name(dev)); - - device_unregister(dev); - } -} - -static struct mdesc_notifier_client vio_device_notifier = { - .add = vio_add, - .remove = vio_remove, - .node_name = "virtual-device-port", -}; - -/* We are only interested in domain service ports under the - * "domain-services" node. On control nodes there is another port - * under "openboot" that we should not mess with as aparently that is - * reserved exclusively for OBP use. - */ -static void vio_add_ds(struct mdesc_handle *hp, u64 node) -{ - int found; - u64 a; - - found = 0; - mdesc_for_each_arc(a, hp, node, MDESC_ARC_TYPE_BACK) { - u64 target = mdesc_arc_target(hp, a); - const char *name = mdesc_node_name(hp, target); - - if (!strcmp(name, "domain-services")) { - found = 1; - break; - } - } - - if (found) - (void) vio_create_one(hp, node, &root_vdev->dev); -} - -static struct mdesc_notifier_client vio_ds_notifier = { - .add = vio_add_ds, - .remove = vio_remove, - .node_name = "domain-services-port", -}; - -static const char *channel_devices_node = "channel-devices"; -static const char *channel_devices_compat = "SUNW,sun4v-channel-devices"; -static const char *cfg_handle_prop = "cfg-handle"; - -static int __init vio_init(void) -{ - struct mdesc_handle *hp; - const char *compat; - const u64 *cfg_handle; - int err, len; - u64 root; - - err = bus_register(&vio_bus_type); - if (err) { - printk(KERN_ERR "VIO: Could not register bus type err=%d\n", - err); - return err; - } - - hp = mdesc_grab(); - if (!hp) - return 0; - - root = mdesc_node_by_name(hp, MDESC_NODE_NULL, channel_devices_node); - if (root == MDESC_NODE_NULL) { - printk(KERN_INFO "VIO: No channel-devices MDESC node.\n"); - mdesc_release(hp); - return 0; - } - - cdev_node = of_find_node_by_name(NULL, "channel-devices"); - err = -ENODEV; - if (!cdev_node) { - printk(KERN_INFO "VIO: No channel-devices OBP node.\n"); - goto out_release; - } - - compat = mdesc_get_property(hp, root, "compatible", &len); - if (!compat) { - printk(KERN_ERR "VIO: Channel devices lacks compatible " - "property\n"); - goto out_release; - } - if (!of_find_in_proplist(compat, channel_devices_compat, len)) { - printk(KERN_ERR "VIO: Channel devices node lacks (%s) " - "compat entry.\n", channel_devices_compat); - goto out_release; - } - - cfg_handle = mdesc_get_property(hp, root, cfg_handle_prop, NULL); - if (!cfg_handle) { - printk(KERN_ERR "VIO: Channel devices lacks %s property\n", - cfg_handle_prop); - goto out_release; - } - - cdev_cfg_handle = *cfg_handle; - - root_vdev = vio_create_one(hp, root, NULL); - err = -ENODEV; - if (!root_vdev) { - printk(KERN_ERR "VIO: Coult not create root device.\n"); - goto out_release; - } - - mdesc_register_notifier(&vio_device_notifier); - mdesc_register_notifier(&vio_ds_notifier); - - mdesc_release(hp); - - return err; - -out_release: - mdesc_release(hp); - return err; -} - -postcore_initcall(vio_init); diff --git a/arch/sparc64/kernel/viohs.c b/arch/sparc64/kernel/viohs.c deleted file mode 100644 index 708fa1705fbe..000000000000 --- a/arch/sparc64/kernel/viohs.c +++ /dev/null @@ -1,822 +0,0 @@ -/* viohs.c: LDOM Virtual I/O handshake helper layer. - * - * Copyright (C) 2007 David S. Miller <davem@davemloft.net> - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/string.h> -#include <linux/delay.h> -#include <linux/sched.h> -#include <linux/slab.h> - -#include <asm/ldc.h> -#include <asm/vio.h> - -int vio_ldc_send(struct vio_driver_state *vio, void *data, int len) -{ - int err, limit = 1000; - - err = -EINVAL; - while (limit-- > 0) { - err = ldc_write(vio->lp, data, len); - if (!err || (err != -EAGAIN)) - break; - udelay(1); - } - - return err; -} -EXPORT_SYMBOL(vio_ldc_send); - -static int send_ctrl(struct vio_driver_state *vio, - struct vio_msg_tag *tag, int len) -{ - tag->sid = vio_send_sid(vio); - return vio_ldc_send(vio, tag, len); -} - -static void init_tag(struct vio_msg_tag *tag, u8 type, u8 stype, u16 stype_env) -{ - tag->type = type; - tag->stype = stype; - tag->stype_env = stype_env; -} - -static int send_version(struct vio_driver_state *vio, u16 major, u16 minor) -{ - struct vio_ver_info pkt; - - vio->_local_sid = (u32) sched_clock(); - - memset(&pkt, 0, sizeof(pkt)); - init_tag(&pkt.tag, VIO_TYPE_CTRL, VIO_SUBTYPE_INFO, VIO_VER_INFO); - pkt.major = major; - pkt.minor = minor; - pkt.dev_class = vio->dev_class; - - viodbg(HS, "SEND VERSION INFO maj[%u] min[%u] devclass[%u]\n", - major, minor, vio->dev_class); - - return send_ctrl(vio, &pkt.tag, sizeof(pkt)); -} - -static int start_handshake(struct vio_driver_state *vio) -{ - int err; - - viodbg(HS, "START HANDSHAKE\n"); - - vio->hs_state = VIO_HS_INVALID; - - err = send_version(vio, - vio->ver_table[0].major, - vio->ver_table[0].minor); - if (err < 0) - return err; - - return 0; -} - -static void flush_rx_dring(struct vio_driver_state *vio) -{ - struct vio_dring_state *dr; - u64 ident; - - BUG_ON(!(vio->dr_state & VIO_DR_STATE_RXREG)); - - dr = &vio->drings[VIO_DRIVER_RX_RING]; - ident = dr->ident; - - BUG_ON(!vio->desc_buf); - kfree(vio->desc_buf); - vio->desc_buf = NULL; - - memset(dr, 0, sizeof(*dr)); - dr->ident = ident; -} - -void vio_link_state_change(struct vio_driver_state *vio, int event) -{ - if (event == LDC_EVENT_UP) { - vio->hs_state = VIO_HS_INVALID; - - switch (vio->dev_class) { - case VDEV_NETWORK: - case VDEV_NETWORK_SWITCH: - vio->dr_state = (VIO_DR_STATE_TXREQ | - VIO_DR_STATE_RXREQ); - break; - - case VDEV_DISK: - vio->dr_state = VIO_DR_STATE_TXREQ; - break; - case VDEV_DISK_SERVER: - vio->dr_state = VIO_DR_STATE_RXREQ; - break; - } - start_handshake(vio); - } else if (event == LDC_EVENT_RESET) { - vio->hs_state = VIO_HS_INVALID; - - if (vio->dr_state & VIO_DR_STATE_RXREG) - flush_rx_dring(vio); - - vio->dr_state = 0x00; - memset(&vio->ver, 0, sizeof(vio->ver)); - - ldc_disconnect(vio->lp); - } -} -EXPORT_SYMBOL(vio_link_state_change); - -static int handshake_failure(struct vio_driver_state *vio) -{ - struct vio_dring_state *dr; - - /* XXX Put policy here... Perhaps start a timer to fire - * XXX in 100 ms, which will bring the link up and retry - * XXX the handshake. - */ - - viodbg(HS, "HANDSHAKE FAILURE\n"); - - vio->dr_state &= ~(VIO_DR_STATE_TXREG | - VIO_DR_STATE_RXREG); - - dr = &vio->drings[VIO_DRIVER_RX_RING]; - memset(dr, 0, sizeof(*dr)); - - kfree(vio->desc_buf); - vio->desc_buf = NULL; - vio->desc_buf_len = 0; - - vio->hs_state = VIO_HS_INVALID; - - return -ECONNRESET; -} - -static int process_unknown(struct vio_driver_state *vio, void *arg) -{ - struct vio_msg_tag *pkt = arg; - - viodbg(HS, "UNKNOWN CONTROL [%02x:%02x:%04x:%08x]\n", - pkt->type, pkt->stype, pkt->stype_env, pkt->sid); - - printk(KERN_ERR "vio: ID[%lu] Resetting connection.\n", - vio->vdev->channel_id); - - ldc_disconnect(vio->lp); - - return -ECONNRESET; -} - -static int send_dreg(struct vio_driver_state *vio) -{ - struct vio_dring_state *dr = &vio->drings[VIO_DRIVER_TX_RING]; - union { - struct vio_dring_register pkt; - char all[sizeof(struct vio_dring_register) + - (sizeof(struct ldc_trans_cookie) * - dr->ncookies)]; - } u; - int i; - - memset(&u, 0, sizeof(u)); - init_tag(&u.pkt.tag, VIO_TYPE_CTRL, VIO_SUBTYPE_INFO, VIO_DRING_REG); - u.pkt.dring_ident = 0; - u.pkt.num_descr = dr->num_entries; - u.pkt.descr_size = dr->entry_size; - u.pkt.options = VIO_TX_DRING; - u.pkt.num_cookies = dr->ncookies; - - viodbg(HS, "SEND DRING_REG INFO ndesc[%u] dsz[%u] opt[0x%x] " - "ncookies[%u]\n", - u.pkt.num_descr, u.pkt.descr_size, u.pkt.options, - u.pkt.num_cookies); - - for (i = 0; i < dr->ncookies; i++) { - u.pkt.cookies[i] = dr->cookies[i]; - - viodbg(HS, "DRING COOKIE(%d) [%016llx:%016llx]\n", - i, - (unsigned long long) u.pkt.cookies[i].cookie_addr, - (unsigned long long) u.pkt.cookies[i].cookie_size); - } - - return send_ctrl(vio, &u.pkt.tag, sizeof(u)); -} - -static int send_rdx(struct vio_driver_state *vio) -{ - struct vio_rdx pkt; - - memset(&pkt, 0, sizeof(pkt)); - - init_tag(&pkt.tag, VIO_TYPE_CTRL, VIO_SUBTYPE_INFO, VIO_RDX); - - viodbg(HS, "SEND RDX INFO\n"); - - return send_ctrl(vio, &pkt.tag, sizeof(pkt)); -} - -static int send_attr(struct vio_driver_state *vio) -{ - return vio->ops->send_attr(vio); -} - -static struct vio_version *find_by_major(struct vio_driver_state *vio, - u16 major) -{ - struct vio_version *ret = NULL; - int i; - - for (i = 0; i < vio->ver_table_entries; i++) { - struct vio_version *v = &vio->ver_table[i]; - if (v->major <= major) { - ret = v; - break; - } - } - return ret; -} - -static int process_ver_info(struct vio_driver_state *vio, - struct vio_ver_info *pkt) -{ - struct vio_version *vap; - int err; - - viodbg(HS, "GOT VERSION INFO maj[%u] min[%u] devclass[%u]\n", - pkt->major, pkt->minor, pkt->dev_class); - - if (vio->hs_state != VIO_HS_INVALID) { - /* XXX Perhaps invoke start_handshake? XXX */ - memset(&vio->ver, 0, sizeof(vio->ver)); - vio->hs_state = VIO_HS_INVALID; - } - - vap = find_by_major(vio, pkt->major); - - vio->_peer_sid = pkt->tag.sid; - - if (!vap) { - pkt->tag.stype = VIO_SUBTYPE_NACK; - pkt->major = 0; - pkt->minor = 0; - viodbg(HS, "SEND VERSION NACK maj[0] min[0]\n"); - err = send_ctrl(vio, &pkt->tag, sizeof(*pkt)); - } else if (vap->major != pkt->major) { - pkt->tag.stype = VIO_SUBTYPE_NACK; - pkt->major = vap->major; - pkt->minor = vap->minor; - viodbg(HS, "SEND VERSION NACK maj[%u] min[%u]\n", - pkt->major, pkt->minor); - err = send_ctrl(vio, &pkt->tag, sizeof(*pkt)); - } else { - struct vio_version ver = { - .major = pkt->major, - .minor = pkt->minor, - }; - if (ver.minor > vap->minor) - ver.minor = vap->minor; - pkt->minor = ver.minor; - pkt->tag.stype = VIO_SUBTYPE_ACK; - viodbg(HS, "SEND VERSION ACK maj[%u] min[%u]\n", - pkt->major, pkt->minor); - err = send_ctrl(vio, &pkt->tag, sizeof(*pkt)); - if (err > 0) { - vio->ver = ver; - vio->hs_state = VIO_HS_GOTVERS; - } - } - if (err < 0) - return handshake_failure(vio); - - return 0; -} - -static int process_ver_ack(struct vio_driver_state *vio, - struct vio_ver_info *pkt) -{ - viodbg(HS, "GOT VERSION ACK maj[%u] min[%u] devclass[%u]\n", - pkt->major, pkt->minor, pkt->dev_class); - - if (vio->hs_state & VIO_HS_GOTVERS) { - if (vio->ver.major != pkt->major || - vio->ver.minor != pkt->minor) { - pkt->tag.stype = VIO_SUBTYPE_NACK; - (void) send_ctrl(vio, &pkt->tag, sizeof(*pkt)); - return handshake_failure(vio); - } - } else { - vio->ver.major = pkt->major; - vio->ver.minor = pkt->minor; - vio->hs_state = VIO_HS_GOTVERS; - } - - switch (vio->dev_class) { - case VDEV_NETWORK: - case VDEV_DISK: - if (send_attr(vio) < 0) - return handshake_failure(vio); - break; - - default: - break; - } - - return 0; -} - -static int process_ver_nack(struct vio_driver_state *vio, - struct vio_ver_info *pkt) -{ - struct vio_version *nver; - - viodbg(HS, "GOT VERSION NACK maj[%u] min[%u] devclass[%u]\n", - pkt->major, pkt->minor, pkt->dev_class); - - if ((pkt->major == 0 && pkt->minor == 0) || - !(nver = find_by_major(vio, pkt->major))) - return handshake_failure(vio); - - if (send_version(vio, nver->major, nver->minor) < 0) - return handshake_failure(vio); - - return 0; -} - -static int process_ver(struct vio_driver_state *vio, struct vio_ver_info *pkt) -{ - switch (pkt->tag.stype) { - case VIO_SUBTYPE_INFO: - return process_ver_info(vio, pkt); - - case VIO_SUBTYPE_ACK: - return process_ver_ack(vio, pkt); - - case VIO_SUBTYPE_NACK: - return process_ver_nack(vio, pkt); - - default: - return handshake_failure(vio); - }; -} - -static int process_attr(struct vio_driver_state *vio, void *pkt) -{ - int err; - - if (!(vio->hs_state & VIO_HS_GOTVERS)) - return handshake_failure(vio); - - err = vio->ops->handle_attr(vio, pkt); - if (err < 0) { - return handshake_failure(vio); - } else { - vio->hs_state |= VIO_HS_GOT_ATTR; - - if ((vio->dr_state & VIO_DR_STATE_TXREQ) && - !(vio->hs_state & VIO_HS_SENT_DREG)) { - if (send_dreg(vio) < 0) - return handshake_failure(vio); - - vio->hs_state |= VIO_HS_SENT_DREG; - } - } - return 0; -} - -static int all_drings_registered(struct vio_driver_state *vio) -{ - int need_rx, need_tx; - - need_rx = (vio->dr_state & VIO_DR_STATE_RXREQ); - need_tx = (vio->dr_state & VIO_DR_STATE_TXREQ); - - if (need_rx && - !(vio->dr_state & VIO_DR_STATE_RXREG)) - return 0; - - if (need_tx && - !(vio->dr_state & VIO_DR_STATE_TXREG)) - return 0; - - return 1; -} - -static int process_dreg_info(struct vio_driver_state *vio, - struct vio_dring_register *pkt) -{ - struct vio_dring_state *dr; - int i, len; - - viodbg(HS, "GOT DRING_REG INFO ident[%llx] " - "ndesc[%u] dsz[%u] opt[0x%x] ncookies[%u]\n", - (unsigned long long) pkt->dring_ident, - pkt->num_descr, pkt->descr_size, pkt->options, - pkt->num_cookies); - - if (!(vio->dr_state & VIO_DR_STATE_RXREQ)) - goto send_nack; - - if (vio->dr_state & VIO_DR_STATE_RXREG) - goto send_nack; - - BUG_ON(vio->desc_buf); - - vio->desc_buf = kzalloc(pkt->descr_size, GFP_ATOMIC); - if (!vio->desc_buf) - goto send_nack; - - vio->desc_buf_len = pkt->descr_size; - - dr = &vio->drings[VIO_DRIVER_RX_RING]; - - dr->num_entries = pkt->num_descr; - dr->entry_size = pkt->descr_size; - dr->ncookies = pkt->num_cookies; - for (i = 0; i < dr->ncookies; i++) { - dr->cookies[i] = pkt->cookies[i]; - - viodbg(HS, "DRING COOKIE(%d) [%016llx:%016llx]\n", - i, - (unsigned long long) - pkt->cookies[i].cookie_addr, - (unsigned long long) - pkt->cookies[i].cookie_size); - } - - pkt->tag.stype = VIO_SUBTYPE_ACK; - pkt->dring_ident = ++dr->ident; - - viodbg(HS, "SEND DRING_REG ACK ident[%llx]\n", - (unsigned long long) pkt->dring_ident); - - len = (sizeof(*pkt) + - (dr->ncookies * sizeof(struct ldc_trans_cookie))); - if (send_ctrl(vio, &pkt->tag, len) < 0) - goto send_nack; - - vio->dr_state |= VIO_DR_STATE_RXREG; - - return 0; - -send_nack: - pkt->tag.stype = VIO_SUBTYPE_NACK; - viodbg(HS, "SEND DRING_REG NACK\n"); - (void) send_ctrl(vio, &pkt->tag, sizeof(*pkt)); - - return handshake_failure(vio); -} - -static int process_dreg_ack(struct vio_driver_state *vio, - struct vio_dring_register *pkt) -{ - struct vio_dring_state *dr; - - viodbg(HS, "GOT DRING_REG ACK ident[%llx] " - "ndesc[%u] dsz[%u] opt[0x%x] ncookies[%u]\n", - (unsigned long long) pkt->dring_ident, - pkt->num_descr, pkt->descr_size, pkt->options, - pkt->num_cookies); - - dr = &vio->drings[VIO_DRIVER_TX_RING]; - - if (!(vio->dr_state & VIO_DR_STATE_TXREQ)) - return handshake_failure(vio); - - dr->ident = pkt->dring_ident; - vio->dr_state |= VIO_DR_STATE_TXREG; - - if (all_drings_registered(vio)) { - if (send_rdx(vio) < 0) - return handshake_failure(vio); - vio->hs_state = VIO_HS_SENT_RDX; - } - return 0; -} - -static int process_dreg_nack(struct vio_driver_state *vio, - struct vio_dring_register *pkt) -{ - viodbg(HS, "GOT DRING_REG NACK ident[%llx] " - "ndesc[%u] dsz[%u] opt[0x%x] ncookies[%u]\n", - (unsigned long long) pkt->dring_ident, - pkt->num_descr, pkt->descr_size, pkt->options, - pkt->num_cookies); - - return handshake_failure(vio); -} - -static int process_dreg(struct vio_driver_state *vio, - struct vio_dring_register *pkt) -{ - if (!(vio->hs_state & VIO_HS_GOTVERS)) - return handshake_failure(vio); - - switch (pkt->tag.stype) { - case VIO_SUBTYPE_INFO: - return process_dreg_info(vio, pkt); - - case VIO_SUBTYPE_ACK: - return process_dreg_ack(vio, pkt); - - case VIO_SUBTYPE_NACK: - return process_dreg_nack(vio, pkt); - - default: - return handshake_failure(vio); - } -} - -static int process_dunreg(struct vio_driver_state *vio, - struct vio_dring_unregister *pkt) -{ - struct vio_dring_state *dr = &vio->drings[VIO_DRIVER_RX_RING]; - - viodbg(HS, "GOT DRING_UNREG\n"); - - if (pkt->dring_ident != dr->ident) - return 0; - - vio->dr_state &= ~VIO_DR_STATE_RXREG; - - memset(dr, 0, sizeof(*dr)); - - kfree(vio->desc_buf); - vio->desc_buf = NULL; - vio->desc_buf_len = 0; - - return 0; -} - -static int process_rdx_info(struct vio_driver_state *vio, struct vio_rdx *pkt) -{ - viodbg(HS, "GOT RDX INFO\n"); - - pkt->tag.stype = VIO_SUBTYPE_ACK; - viodbg(HS, "SEND RDX ACK\n"); - if (send_ctrl(vio, &pkt->tag, sizeof(*pkt)) < 0) - return handshake_failure(vio); - - vio->hs_state |= VIO_HS_SENT_RDX_ACK; - return 0; -} - -static int process_rdx_ack(struct vio_driver_state *vio, struct vio_rdx *pkt) -{ - viodbg(HS, "GOT RDX ACK\n"); - - if (!(vio->hs_state & VIO_HS_SENT_RDX)) - return handshake_failure(vio); - - vio->hs_state |= VIO_HS_GOT_RDX_ACK; - return 0; -} - -static int process_rdx_nack(struct vio_driver_state *vio, struct vio_rdx *pkt) -{ - viodbg(HS, "GOT RDX NACK\n"); - - return handshake_failure(vio); -} - -static int process_rdx(struct vio_driver_state *vio, struct vio_rdx *pkt) -{ - if (!all_drings_registered(vio)) - handshake_failure(vio); - - switch (pkt->tag.stype) { - case VIO_SUBTYPE_INFO: - return process_rdx_info(vio, pkt); - - case VIO_SUBTYPE_ACK: - return process_rdx_ack(vio, pkt); - - case VIO_SUBTYPE_NACK: - return process_rdx_nack(vio, pkt); - - default: - return handshake_failure(vio); - } -} - -int vio_control_pkt_engine(struct vio_driver_state *vio, void *pkt) -{ - struct vio_msg_tag *tag = pkt; - u8 prev_state = vio->hs_state; - int err; - - switch (tag->stype_env) { - case VIO_VER_INFO: - err = process_ver(vio, pkt); - break; - - case VIO_ATTR_INFO: - err = process_attr(vio, pkt); - break; - - case VIO_DRING_REG: - err = process_dreg(vio, pkt); - break; - - case VIO_DRING_UNREG: - err = process_dunreg(vio, pkt); - break; - - case VIO_RDX: - err = process_rdx(vio, pkt); - break; - - default: - err = process_unknown(vio, pkt); - break; - } - if (!err && - vio->hs_state != prev_state && - (vio->hs_state & VIO_HS_COMPLETE)) - vio->ops->handshake_complete(vio); - - return err; -} -EXPORT_SYMBOL(vio_control_pkt_engine); - -void vio_conn_reset(struct vio_driver_state *vio) -{ -} -EXPORT_SYMBOL(vio_conn_reset); - -/* The issue is that the Solaris virtual disk server just mirrors the - * SID values it gets from the client peer. So we work around that - * here in vio_{validate,send}_sid() so that the drivers don't need - * to be aware of this crap. - */ -int vio_validate_sid(struct vio_driver_state *vio, struct vio_msg_tag *tp) -{ - u32 sid; - - /* Always let VERSION+INFO packets through unchecked, they - * define the new SID. - */ - if (tp->type == VIO_TYPE_CTRL && - tp->stype == VIO_SUBTYPE_INFO && - tp->stype_env == VIO_VER_INFO) - return 0; - - /* Ok, now figure out which SID to use. */ - switch (vio->dev_class) { - case VDEV_NETWORK: - case VDEV_NETWORK_SWITCH: - case VDEV_DISK_SERVER: - default: - sid = vio->_peer_sid; - break; - - case VDEV_DISK: - sid = vio->_local_sid; - break; - } - - if (sid == tp->sid) - return 0; - viodbg(DATA, "BAD SID tag->sid[%08x] peer_sid[%08x] local_sid[%08x]\n", - tp->sid, vio->_peer_sid, vio->_local_sid); - return -EINVAL; -} -EXPORT_SYMBOL(vio_validate_sid); - -u32 vio_send_sid(struct vio_driver_state *vio) -{ - switch (vio->dev_class) { - case VDEV_NETWORK: - case VDEV_NETWORK_SWITCH: - case VDEV_DISK: - default: - return vio->_local_sid; - - case VDEV_DISK_SERVER: - return vio->_peer_sid; - } -} -EXPORT_SYMBOL(vio_send_sid); - -int vio_ldc_alloc(struct vio_driver_state *vio, - struct ldc_channel_config *base_cfg, - void *event_arg) -{ - struct ldc_channel_config cfg = *base_cfg; - struct ldc_channel *lp; - - cfg.tx_irq = vio->vdev->tx_irq; - cfg.rx_irq = vio->vdev->rx_irq; - - lp = ldc_alloc(vio->vdev->channel_id, &cfg, event_arg); - if (IS_ERR(lp)) - return PTR_ERR(lp); - - vio->lp = lp; - - return 0; -} -EXPORT_SYMBOL(vio_ldc_alloc); - -void vio_ldc_free(struct vio_driver_state *vio) -{ - ldc_free(vio->lp); - vio->lp = NULL; - - kfree(vio->desc_buf); - vio->desc_buf = NULL; - vio->desc_buf_len = 0; -} -EXPORT_SYMBOL(vio_ldc_free); - -void vio_port_up(struct vio_driver_state *vio) -{ - unsigned long flags; - int err, state; - - spin_lock_irqsave(&vio->lock, flags); - - state = ldc_state(vio->lp); - - err = 0; - if (state == LDC_STATE_INIT) { - err = ldc_bind(vio->lp, vio->name); - if (err) - printk(KERN_WARNING "%s: Port %lu bind failed, " - "err=%d\n", - vio->name, vio->vdev->channel_id, err); - } - - if (!err) { - err = ldc_connect(vio->lp); - if (err) - printk(KERN_WARNING "%s: Port %lu connect failed, " - "err=%d\n", - vio->name, vio->vdev->channel_id, err); - } - if (err) { - unsigned long expires = jiffies + HZ; - - expires = round_jiffies(expires); - mod_timer(&vio->timer, expires); - } - - spin_unlock_irqrestore(&vio->lock, flags); -} -EXPORT_SYMBOL(vio_port_up); - -static void vio_port_timer(unsigned long _arg) -{ - struct vio_driver_state *vio = (struct vio_driver_state *) _arg; - - vio_port_up(vio); -} - -int vio_driver_init(struct vio_driver_state *vio, struct vio_dev *vdev, - u8 dev_class, struct vio_version *ver_table, - int ver_table_size, struct vio_driver_ops *ops, - char *name) -{ - switch (dev_class) { - case VDEV_NETWORK: - case VDEV_NETWORK_SWITCH: - case VDEV_DISK: - case VDEV_DISK_SERVER: - break; - - default: - return -EINVAL; - } - - if (!ops->send_attr || - !ops->handle_attr || - !ops->handshake_complete) - return -EINVAL; - - if (!ver_table || ver_table_size < 0) - return -EINVAL; - - if (!name) - return -EINVAL; - - spin_lock_init(&vio->lock); - - vio->name = name; - - vio->dev_class = dev_class; - vio->vdev = vdev; - - vio->ver_table = ver_table; - vio->ver_table_entries = ver_table_size; - - vio->ops = ops; - - setup_timer(&vio->timer, vio_port_timer, (unsigned long) vio); - - return 0; -} -EXPORT_SYMBOL(vio_driver_init); diff --git a/arch/sparc64/kernel/visemul.c b/arch/sparc64/kernel/visemul.c deleted file mode 100644 index b956fd71c131..000000000000 --- a/arch/sparc64/kernel/visemul.c +++ /dev/null @@ -1,890 +0,0 @@ -/* visemul.c: Emulation of VIS instructions. - * - * Copyright (C) 2006 David S. Miller (davem@davemloft.net) - */ -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/thread_info.h> - -#include <asm/ptrace.h> -#include <asm/pstate.h> -#include <asm/system.h> -#include <asm/fpumacro.h> -#include <asm/uaccess.h> - -/* OPF field of various VIS instructions. */ - -/* 000111011 - four 16-bit packs */ -#define FPACK16_OPF 0x03b - -/* 000111010 - two 32-bit packs */ -#define FPACK32_OPF 0x03a - -/* 000111101 - four 16-bit packs */ -#define FPACKFIX_OPF 0x03d - -/* 001001101 - four 16-bit expands */ -#define FEXPAND_OPF 0x04d - -/* 001001011 - two 32-bit merges */ -#define FPMERGE_OPF 0x04b - -/* 000110001 - 8-by-16-bit partitoned product */ -#define FMUL8x16_OPF 0x031 - -/* 000110011 - 8-by-16-bit upper alpha partitioned product */ -#define FMUL8x16AU_OPF 0x033 - -/* 000110101 - 8-by-16-bit lower alpha partitioned product */ -#define FMUL8x16AL_OPF 0x035 - -/* 000110110 - upper 8-by-16-bit partitioned product */ -#define FMUL8SUx16_OPF 0x036 - -/* 000110111 - lower 8-by-16-bit partitioned product */ -#define FMUL8ULx16_OPF 0x037 - -/* 000111000 - upper 8-by-16-bit partitioned product */ -#define FMULD8SUx16_OPF 0x038 - -/* 000111001 - lower unsigned 8-by-16-bit partitioned product */ -#define FMULD8ULx16_OPF 0x039 - -/* 000101000 - four 16-bit compare; set rd if src1 > src2 */ -#define FCMPGT16_OPF 0x028 - -/* 000101100 - two 32-bit compare; set rd if src1 > src2 */ -#define FCMPGT32_OPF 0x02c - -/* 000100000 - four 16-bit compare; set rd if src1 <= src2 */ -#define FCMPLE16_OPF 0x020 - -/* 000100100 - two 32-bit compare; set rd if src1 <= src2 */ -#define FCMPLE32_OPF 0x024 - -/* 000100010 - four 16-bit compare; set rd if src1 != src2 */ -#define FCMPNE16_OPF 0x022 - -/* 000100110 - two 32-bit compare; set rd if src1 != src2 */ -#define FCMPNE32_OPF 0x026 - -/* 000101010 - four 16-bit compare; set rd if src1 == src2 */ -#define FCMPEQ16_OPF 0x02a - -/* 000101110 - two 32-bit compare; set rd if src1 == src2 */ -#define FCMPEQ32_OPF 0x02e - -/* 000000000 - Eight 8-bit edge boundary processing */ -#define EDGE8_OPF 0x000 - -/* 000000001 - Eight 8-bit edge boundary processing, no CC */ -#define EDGE8N_OPF 0x001 - -/* 000000010 - Eight 8-bit edge boundary processing, little-endian */ -#define EDGE8L_OPF 0x002 - -/* 000000011 - Eight 8-bit edge boundary processing, little-endian, no CC */ -#define EDGE8LN_OPF 0x003 - -/* 000000100 - Four 16-bit edge boundary processing */ -#define EDGE16_OPF 0x004 - -/* 000000101 - Four 16-bit edge boundary processing, no CC */ -#define EDGE16N_OPF 0x005 - -/* 000000110 - Four 16-bit edge boundary processing, little-endian */ -#define EDGE16L_OPF 0x006 - -/* 000000111 - Four 16-bit edge boundary processing, little-endian, no CC */ -#define EDGE16LN_OPF 0x007 - -/* 000001000 - Two 32-bit edge boundary processing */ -#define EDGE32_OPF 0x008 - -/* 000001001 - Two 32-bit edge boundary processing, no CC */ -#define EDGE32N_OPF 0x009 - -/* 000001010 - Two 32-bit edge boundary processing, little-endian */ -#define EDGE32L_OPF 0x00a - -/* 000001011 - Two 32-bit edge boundary processing, little-endian, no CC */ -#define EDGE32LN_OPF 0x00b - -/* 000111110 - distance between 8 8-bit components */ -#define PDIST_OPF 0x03e - -/* 000010000 - convert 8-bit 3-D address to blocked byte address */ -#define ARRAY8_OPF 0x010 - -/* 000010010 - convert 16-bit 3-D address to blocked byte address */ -#define ARRAY16_OPF 0x012 - -/* 000010100 - convert 32-bit 3-D address to blocked byte address */ -#define ARRAY32_OPF 0x014 - -/* 000011001 - Set the GSR.MASK field in preparation for a BSHUFFLE */ -#define BMASK_OPF 0x019 - -/* 001001100 - Permute bytes as specified by GSR.MASK */ -#define BSHUFFLE_OPF 0x04c - -#define VIS_OPF_SHIFT 5 -#define VIS_OPF_MASK (0x1ff << VIS_OPF_SHIFT) - -#define RS1(INSN) (((INSN) >> 14) & 0x1f) -#define RS2(INSN) (((INSN) >> 0) & 0x1f) -#define RD(INSN) (((INSN) >> 25) & 0x1f) - -static inline void maybe_flush_windows(unsigned int rs1, unsigned int rs2, - unsigned int rd, int from_kernel) -{ - if (rs2 >= 16 || rs1 >= 16 || rd >= 16) { - if (from_kernel != 0) - __asm__ __volatile__("flushw"); - else - flushw_user(); - } -} - -static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs) -{ - unsigned long value; - - if (reg < 16) - return (!reg ? 0 : regs->u_regs[reg]); - if (regs->tstate & TSTATE_PRIV) { - struct reg_window *win; - win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS); - value = win->locals[reg - 16]; - } else if (test_thread_flag(TIF_32BIT)) { - struct reg_window32 __user *win32; - win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); - get_user(value, &win32->locals[reg - 16]); - } else { - struct reg_window __user *win; - win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS); - get_user(value, &win->locals[reg - 16]); - } - return value; -} - -static inline unsigned long __user *__fetch_reg_addr_user(unsigned int reg, - struct pt_regs *regs) -{ - BUG_ON(reg < 16); - BUG_ON(regs->tstate & TSTATE_PRIV); - - if (test_thread_flag(TIF_32BIT)) { - struct reg_window32 __user *win32; - win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); - return (unsigned long __user *)&win32->locals[reg - 16]; - } else { - struct reg_window __user *win; - win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS); - return &win->locals[reg - 16]; - } -} - -static inline unsigned long *__fetch_reg_addr_kern(unsigned int reg, - struct pt_regs *regs) -{ - BUG_ON(reg >= 16); - BUG_ON(regs->tstate & TSTATE_PRIV); - - return ®s->u_regs[reg]; -} - -static void store_reg(struct pt_regs *regs, unsigned long val, unsigned long rd) -{ - if (rd < 16) { - unsigned long *rd_kern = __fetch_reg_addr_kern(rd, regs); - - *rd_kern = val; - } else { - unsigned long __user *rd_user = __fetch_reg_addr_user(rd, regs); - - if (test_thread_flag(TIF_32BIT)) - __put_user((u32)val, (u32 __user *)rd_user); - else - __put_user(val, rd_user); - } -} - -static inline unsigned long fpd_regval(struct fpustate *f, - unsigned int insn_regnum) -{ - insn_regnum = (((insn_regnum & 1) << 5) | - (insn_regnum & 0x1e)); - - return *(unsigned long *) &f->regs[insn_regnum]; -} - -static inline unsigned long *fpd_regaddr(struct fpustate *f, - unsigned int insn_regnum) -{ - insn_regnum = (((insn_regnum & 1) << 5) | - (insn_regnum & 0x1e)); - - return (unsigned long *) &f->regs[insn_regnum]; -} - -static inline unsigned int fps_regval(struct fpustate *f, - unsigned int insn_regnum) -{ - return f->regs[insn_regnum]; -} - -static inline unsigned int *fps_regaddr(struct fpustate *f, - unsigned int insn_regnum) -{ - return &f->regs[insn_regnum]; -} - -struct edge_tab { - u16 left, right; -}; -static struct edge_tab edge8_tab[8] = { - { 0xff, 0x80 }, - { 0x7f, 0xc0 }, - { 0x3f, 0xe0 }, - { 0x1f, 0xf0 }, - { 0x0f, 0xf8 }, - { 0x07, 0xfc }, - { 0x03, 0xfe }, - { 0x01, 0xff }, -}; -static struct edge_tab edge8_tab_l[8] = { - { 0xff, 0x01 }, - { 0xfe, 0x03 }, - { 0xfc, 0x07 }, - { 0xf8, 0x0f }, - { 0xf0, 0x1f }, - { 0xe0, 0x3f }, - { 0xc0, 0x7f }, - { 0x80, 0xff }, -}; -static struct edge_tab edge16_tab[4] = { - { 0xf, 0x8 }, - { 0x7, 0xc }, - { 0x3, 0xe }, - { 0x1, 0xf }, -}; -static struct edge_tab edge16_tab_l[4] = { - { 0xf, 0x1 }, - { 0xe, 0x3 }, - { 0xc, 0x7 }, - { 0x8, 0xf }, -}; -static struct edge_tab edge32_tab[2] = { - { 0x3, 0x2 }, - { 0x1, 0x3 }, -}; -static struct edge_tab edge32_tab_l[2] = { - { 0x3, 0x1 }, - { 0x2, 0x3 }, -}; - -static void edge(struct pt_regs *regs, unsigned int insn, unsigned int opf) -{ - unsigned long orig_rs1, rs1, orig_rs2, rs2, rd_val; - u16 left, right; - - maybe_flush_windows(RS1(insn), RS2(insn), RD(insn), 0); - orig_rs1 = rs1 = fetch_reg(RS1(insn), regs); - orig_rs2 = rs2 = fetch_reg(RS2(insn), regs); - - if (test_thread_flag(TIF_32BIT)) { - rs1 = rs1 & 0xffffffff; - rs2 = rs2 & 0xffffffff; - } - switch (opf) { - default: - case EDGE8_OPF: - case EDGE8N_OPF: - left = edge8_tab[rs1 & 0x7].left; - right = edge8_tab[rs2 & 0x7].right; - break; - case EDGE8L_OPF: - case EDGE8LN_OPF: - left = edge8_tab_l[rs1 & 0x7].left; - right = edge8_tab_l[rs2 & 0x7].right; - break; - - case EDGE16_OPF: - case EDGE16N_OPF: - left = edge16_tab[(rs1 >> 1) & 0x3].left; - right = edge16_tab[(rs2 >> 1) & 0x3].right; - break; - - case EDGE16L_OPF: - case EDGE16LN_OPF: - left = edge16_tab_l[(rs1 >> 1) & 0x3].left; - right = edge16_tab_l[(rs2 >> 1) & 0x3].right; - break; - - case EDGE32_OPF: - case EDGE32N_OPF: - left = edge32_tab[(rs1 >> 2) & 0x1].left; - right = edge32_tab[(rs2 >> 2) & 0x1].right; - break; - - case EDGE32L_OPF: - case EDGE32LN_OPF: - left = edge32_tab_l[(rs1 >> 2) & 0x1].left; - right = edge32_tab_l[(rs2 >> 2) & 0x1].right; - break; - }; - - if ((rs1 & ~0x7UL) == (rs2 & ~0x7UL)) - rd_val = right & left; - else - rd_val = left; - - store_reg(regs, rd_val, RD(insn)); - - switch (opf) { - case EDGE8_OPF: - case EDGE8L_OPF: - case EDGE16_OPF: - case EDGE16L_OPF: - case EDGE32_OPF: - case EDGE32L_OPF: { - unsigned long ccr, tstate; - - __asm__ __volatile__("subcc %1, %2, %%g0\n\t" - "rd %%ccr, %0" - : "=r" (ccr) - : "r" (orig_rs1), "r" (orig_rs2) - : "cc"); - tstate = regs->tstate & ~(TSTATE_XCC | TSTATE_ICC); - regs->tstate = tstate | (ccr << 32UL); - } - }; -} - -static void array(struct pt_regs *regs, unsigned int insn, unsigned int opf) -{ - unsigned long rs1, rs2, rd_val; - unsigned int bits, bits_mask; - - maybe_flush_windows(RS1(insn), RS2(insn), RD(insn), 0); - rs1 = fetch_reg(RS1(insn), regs); - rs2 = fetch_reg(RS2(insn), regs); - - bits = (rs2 > 5 ? 5 : rs2); - bits_mask = (1UL << bits) - 1UL; - - rd_val = ((((rs1 >> 11) & 0x3) << 0) | - (((rs1 >> 33) & 0x3) << 2) | - (((rs1 >> 55) & 0x1) << 4) | - (((rs1 >> 13) & 0xf) << 5) | - (((rs1 >> 35) & 0xf) << 9) | - (((rs1 >> 56) & 0xf) << 13) | - (((rs1 >> 17) & bits_mask) << 17) | - (((rs1 >> 39) & bits_mask) << (17 + bits)) | - (((rs1 >> 60) & 0xf) << (17 + (2*bits)))); - - switch (opf) { - case ARRAY16_OPF: - rd_val <<= 1; - break; - - case ARRAY32_OPF: - rd_val <<= 2; - }; - - store_reg(regs, rd_val, RD(insn)); -} - -static void bmask(struct pt_regs *regs, unsigned int insn) -{ - unsigned long rs1, rs2, rd_val, gsr; - - maybe_flush_windows(RS1(insn), RS2(insn), RD(insn), 0); - rs1 = fetch_reg(RS1(insn), regs); - rs2 = fetch_reg(RS2(insn), regs); - rd_val = rs1 + rs2; - - store_reg(regs, rd_val, RD(insn)); - - gsr = current_thread_info()->gsr[0] & 0xffffffff; - gsr |= rd_val << 32UL; - current_thread_info()->gsr[0] = gsr; -} - -static void bshuffle(struct pt_regs *regs, unsigned int insn) -{ - struct fpustate *f = FPUSTATE; - unsigned long rs1, rs2, rd_val; - unsigned long bmask, i; - - bmask = current_thread_info()->gsr[0] >> 32UL; - - rs1 = fpd_regval(f, RS1(insn)); - rs2 = fpd_regval(f, RS2(insn)); - - rd_val = 0UL; - for (i = 0; i < 8; i++) { - unsigned long which = (bmask >> (i * 4)) & 0xf; - unsigned long byte; - - if (which < 8) - byte = (rs1 >> (which * 8)) & 0xff; - else - byte = (rs2 >> ((which-8)*8)) & 0xff; - rd_val |= (byte << (i * 8)); - } - - *fpd_regaddr(f, RD(insn)) = rd_val; -} - -static void pdist(struct pt_regs *regs, unsigned int insn) -{ - struct fpustate *f = FPUSTATE; - unsigned long rs1, rs2, *rd, rd_val; - unsigned long i; - - rs1 = fpd_regval(f, RS1(insn)); - rs2 = fpd_regval(f, RS2(insn)); - rd = fpd_regaddr(f, RD(insn)); - - rd_val = *rd; - - for (i = 0; i < 8; i++) { - s16 s1, s2; - - s1 = (rs1 >> (56 - (i * 8))) & 0xff; - s2 = (rs2 >> (56 - (i * 8))) & 0xff; - - /* Absolute value of difference. */ - s1 -= s2; - if (s1 < 0) - s1 = ~s1 + 1; - - rd_val += s1; - } - - *rd = rd_val; -} - -static void pformat(struct pt_regs *regs, unsigned int insn, unsigned int opf) -{ - struct fpustate *f = FPUSTATE; - unsigned long rs1, rs2, gsr, scale, rd_val; - - gsr = current_thread_info()->gsr[0]; - scale = (gsr >> 3) & (opf == FPACK16_OPF ? 0xf : 0x1f); - switch (opf) { - case FPACK16_OPF: { - unsigned long byte; - - rs2 = fpd_regval(f, RS2(insn)); - rd_val = 0; - for (byte = 0; byte < 4; byte++) { - unsigned int val; - s16 src = (rs2 >> (byte * 16UL)) & 0xffffUL; - int scaled = src << scale; - int from_fixed = scaled >> 7; - - val = ((from_fixed < 0) ? - 0 : - (from_fixed > 255) ? - 255 : from_fixed); - - rd_val |= (val << (8 * byte)); - } - *fps_regaddr(f, RD(insn)) = rd_val; - break; - } - - case FPACK32_OPF: { - unsigned long word; - - rs1 = fpd_regval(f, RS1(insn)); - rs2 = fpd_regval(f, RS2(insn)); - rd_val = (rs1 << 8) & ~(0x000000ff000000ffUL); - for (word = 0; word < 2; word++) { - unsigned long val; - s32 src = (rs2 >> (word * 32UL)); - s64 scaled = src << scale; - s64 from_fixed = scaled >> 23; - - val = ((from_fixed < 0) ? - 0 : - (from_fixed > 255) ? - 255 : from_fixed); - - rd_val |= (val << (32 * word)); - } - *fpd_regaddr(f, RD(insn)) = rd_val; - break; - } - - case FPACKFIX_OPF: { - unsigned long word; - - rs2 = fpd_regval(f, RS2(insn)); - - rd_val = 0; - for (word = 0; word < 2; word++) { - long val; - s32 src = (rs2 >> (word * 32UL)); - s64 scaled = src << scale; - s64 from_fixed = scaled >> 16; - - val = ((from_fixed < -32768) ? - -32768 : - (from_fixed > 32767) ? - 32767 : from_fixed); - - rd_val |= ((val & 0xffff) << (word * 16)); - } - *fps_regaddr(f, RD(insn)) = rd_val; - break; - } - - case FEXPAND_OPF: { - unsigned long byte; - - rs2 = fps_regval(f, RS2(insn)); - - rd_val = 0; - for (byte = 0; byte < 4; byte++) { - unsigned long val; - u8 src = (rs2 >> (byte * 8)) & 0xff; - - val = src << 4; - - rd_val |= (val << (byte * 16)); - } - *fpd_regaddr(f, RD(insn)) = rd_val; - break; - } - - case FPMERGE_OPF: { - rs1 = fps_regval(f, RS1(insn)); - rs2 = fps_regval(f, RS2(insn)); - - rd_val = (((rs2 & 0x000000ff) << 0) | - ((rs1 & 0x000000ff) << 8) | - ((rs2 & 0x0000ff00) << 8) | - ((rs1 & 0x0000ff00) << 16) | - ((rs2 & 0x00ff0000) << 16) | - ((rs1 & 0x00ff0000) << 24) | - ((rs2 & 0xff000000) << 24) | - ((rs1 & 0xff000000) << 32)); - *fpd_regaddr(f, RD(insn)) = rd_val; - break; - } - }; -} - -static void pmul(struct pt_regs *regs, unsigned int insn, unsigned int opf) -{ - struct fpustate *f = FPUSTATE; - unsigned long rs1, rs2, rd_val; - - switch (opf) { - case FMUL8x16_OPF: { - unsigned long byte; - - rs1 = fps_regval(f, RS1(insn)); - rs2 = fpd_regval(f, RS2(insn)); - - rd_val = 0; - for (byte = 0; byte < 4; byte++) { - u16 src1 = (rs1 >> (byte * 8)) & 0x00ff; - s16 src2 = (rs2 >> (byte * 16)) & 0xffff; - u32 prod = src1 * src2; - u16 scaled = ((prod & 0x00ffff00) >> 8); - - /* Round up. */ - if (prod & 0x80) - scaled++; - rd_val |= ((scaled & 0xffffUL) << (byte * 16UL)); - } - - *fpd_regaddr(f, RD(insn)) = rd_val; - break; - } - - case FMUL8x16AU_OPF: - case FMUL8x16AL_OPF: { - unsigned long byte; - s16 src2; - - rs1 = fps_regval(f, RS1(insn)); - rs2 = fps_regval(f, RS2(insn)); - - rd_val = 0; - src2 = (rs2 >> (opf == FMUL8x16AU_OPF) ? 16 : 0); - for (byte = 0; byte < 4; byte++) { - u16 src1 = (rs1 >> (byte * 8)) & 0x00ff; - u32 prod = src1 * src2; - u16 scaled = ((prod & 0x00ffff00) >> 8); - - /* Round up. */ - if (prod & 0x80) - scaled++; - rd_val |= ((scaled & 0xffffUL) << (byte * 16UL)); - } - - *fpd_regaddr(f, RD(insn)) = rd_val; - break; - } - - case FMUL8SUx16_OPF: - case FMUL8ULx16_OPF: { - unsigned long byte, ushift; - - rs1 = fpd_regval(f, RS1(insn)); - rs2 = fpd_regval(f, RS2(insn)); - - rd_val = 0; - ushift = (opf == FMUL8SUx16_OPF) ? 8 : 0; - for (byte = 0; byte < 4; byte++) { - u16 src1; - s16 src2; - u32 prod; - u16 scaled; - - src1 = ((rs1 >> ((16 * byte) + ushift)) & 0x00ff); - src2 = ((rs2 >> (16 * byte)) & 0xffff); - prod = src1 * src2; - scaled = ((prod & 0x00ffff00) >> 8); - - /* Round up. */ - if (prod & 0x80) - scaled++; - rd_val |= ((scaled & 0xffffUL) << (byte * 16UL)); - } - - *fpd_regaddr(f, RD(insn)) = rd_val; - break; - } - - case FMULD8SUx16_OPF: - case FMULD8ULx16_OPF: { - unsigned long byte, ushift; - - rs1 = fps_regval(f, RS1(insn)); - rs2 = fps_regval(f, RS2(insn)); - - rd_val = 0; - ushift = (opf == FMULD8SUx16_OPF) ? 8 : 0; - for (byte = 0; byte < 2; byte++) { - u16 src1; - s16 src2; - u32 prod; - u16 scaled; - - src1 = ((rs1 >> ((16 * byte) + ushift)) & 0x00ff); - src2 = ((rs2 >> (16 * byte)) & 0xffff); - prod = src1 * src2; - scaled = ((prod & 0x00ffff00) >> 8); - - /* Round up. */ - if (prod & 0x80) - scaled++; - rd_val |= ((scaled & 0xffffUL) << - ((byte * 32UL) + 7UL)); - } - *fpd_regaddr(f, RD(insn)) = rd_val; - break; - } - }; -} - -static void pcmp(struct pt_regs *regs, unsigned int insn, unsigned int opf) -{ - struct fpustate *f = FPUSTATE; - unsigned long rs1, rs2, rd_val, i; - - rs1 = fpd_regval(f, RS1(insn)); - rs2 = fpd_regval(f, RS2(insn)); - - rd_val = 0; - - switch (opf) { - case FCMPGT16_OPF: - for (i = 0; i < 4; i++) { - s16 a = (rs1 >> (i * 16)) & 0xffff; - s16 b = (rs2 >> (i * 16)) & 0xffff; - - if (a > b) - rd_val |= 1 << i; - } - break; - - case FCMPGT32_OPF: - for (i = 0; i < 2; i++) { - s32 a = (rs1 >> (i * 32)) & 0xffff; - s32 b = (rs2 >> (i * 32)) & 0xffff; - - if (a > b) - rd_val |= 1 << i; - } - break; - - case FCMPLE16_OPF: - for (i = 0; i < 4; i++) { - s16 a = (rs1 >> (i * 16)) & 0xffff; - s16 b = (rs2 >> (i * 16)) & 0xffff; - - if (a <= b) - rd_val |= 1 << i; - } - break; - - case FCMPLE32_OPF: - for (i = 0; i < 2; i++) { - s32 a = (rs1 >> (i * 32)) & 0xffff; - s32 b = (rs2 >> (i * 32)) & 0xffff; - - if (a <= b) - rd_val |= 1 << i; - } - break; - - case FCMPNE16_OPF: - for (i = 0; i < 4; i++) { - s16 a = (rs1 >> (i * 16)) & 0xffff; - s16 b = (rs2 >> (i * 16)) & 0xffff; - - if (a != b) - rd_val |= 1 << i; - } - break; - - case FCMPNE32_OPF: - for (i = 0; i < 2; i++) { - s32 a = (rs1 >> (i * 32)) & 0xffff; - s32 b = (rs2 >> (i * 32)) & 0xffff; - - if (a != b) - rd_val |= 1 << i; - } - break; - - case FCMPEQ16_OPF: - for (i = 0; i < 4; i++) { - s16 a = (rs1 >> (i * 16)) & 0xffff; - s16 b = (rs2 >> (i * 16)) & 0xffff; - - if (a == b) - rd_val |= 1 << i; - } - break; - - case FCMPEQ32_OPF: - for (i = 0; i < 2; i++) { - s32 a = (rs1 >> (i * 32)) & 0xffff; - s32 b = (rs2 >> (i * 32)) & 0xffff; - - if (a == b) - rd_val |= 1 << i; - } - break; - }; - - maybe_flush_windows(0, 0, RD(insn), 0); - store_reg(regs, rd_val, RD(insn)); -} - -/* Emulate the VIS instructions which are not implemented in - * hardware on Niagara. - */ -int vis_emul(struct pt_regs *regs, unsigned int insn) -{ - unsigned long pc = regs->tpc; - unsigned int opf; - - BUG_ON(regs->tstate & TSTATE_PRIV); - - if (test_thread_flag(TIF_32BIT)) - pc = (u32)pc; - - if (get_user(insn, (u32 __user *) pc)) - return -EFAULT; - - save_and_clear_fpu(); - - opf = (insn & VIS_OPF_MASK) >> VIS_OPF_SHIFT; - switch (opf) { - default: - return -EINVAL; - - /* Pixel Formatting Instructions. */ - case FPACK16_OPF: - case FPACK32_OPF: - case FPACKFIX_OPF: - case FEXPAND_OPF: - case FPMERGE_OPF: - pformat(regs, insn, opf); - break; - - /* Partitioned Multiply Instructions */ - case FMUL8x16_OPF: - case FMUL8x16AU_OPF: - case FMUL8x16AL_OPF: - case FMUL8SUx16_OPF: - case FMUL8ULx16_OPF: - case FMULD8SUx16_OPF: - case FMULD8ULx16_OPF: - pmul(regs, insn, opf); - break; - - /* Pixel Compare Instructions */ - case FCMPGT16_OPF: - case FCMPGT32_OPF: - case FCMPLE16_OPF: - case FCMPLE32_OPF: - case FCMPNE16_OPF: - case FCMPNE32_OPF: - case FCMPEQ16_OPF: - case FCMPEQ32_OPF: - pcmp(regs, insn, opf); - break; - - /* Edge Handling Instructions */ - case EDGE8_OPF: - case EDGE8N_OPF: - case EDGE8L_OPF: - case EDGE8LN_OPF: - case EDGE16_OPF: - case EDGE16N_OPF: - case EDGE16L_OPF: - case EDGE16LN_OPF: - case EDGE32_OPF: - case EDGE32N_OPF: - case EDGE32L_OPF: - case EDGE32LN_OPF: - edge(regs, insn, opf); - break; - - /* Pixel Component Distance */ - case PDIST_OPF: - pdist(regs, insn); - break; - - /* Three-Dimensional Array Addressing Instructions */ - case ARRAY8_OPF: - case ARRAY16_OPF: - case ARRAY32_OPF: - array(regs, insn, opf); - break; - - /* Byte Mask and Shuffle Instructions */ - case BMASK_OPF: - bmask(regs, insn); - break; - - case BSHUFFLE_OPF: - bshuffle(regs, insn); - break; - }; - - regs->tpc = regs->tnpc; - regs->tnpc += 4; - return 0; -} diff --git a/arch/sparc64/kernel/vmlinux.lds.S b/arch/sparc64/kernel/vmlinux.lds.S deleted file mode 100644 index 01f809617e5e..000000000000 --- a/arch/sparc64/kernel/vmlinux.lds.S +++ /dev/null @@ -1,147 +0,0 @@ -/* ld script to make UltraLinux kernel */ - -#include <asm/page.h> -#include <asm-generic/vmlinux.lds.h> - -OUTPUT_FORMAT("elf64-sparc", "elf64-sparc", "elf64-sparc") -OUTPUT_ARCH(sparc:v9a) -ENTRY(_start) - -jiffies = jiffies_64; -SECTIONS -{ - swapper_low_pmd_dir = 0x0000000000402000; - . = 0x4000; - .text 0x0000000000404000 : { - _text = .; - TEXT_TEXT - SCHED_TEXT - LOCK_TEXT - KPROBES_TEXT - *(.gnu.warning) - } = 0 - _etext = .; - PROVIDE (etext = .); - - RO_DATA(PAGE_SIZE) - .data : { - DATA_DATA - CONSTRUCTORS - } - .data1 : { - *(.data1) - } - . = ALIGN(64); - .data.cacheline_aligned : { - *(.data.cacheline_aligned) - } - . = ALIGN(64); - .data.read_mostly : { - *(.data.read_mostly) - } - _edata = .; - PROVIDE (edata = .); - .fixup : { - *(.fixup) - } - . = ALIGN(16); - __ex_table : { - __start___ex_table = .; - *(__ex_table) - __stop___ex_table = .; - } - NOTES - - . = ALIGN(PAGE_SIZE); - .init.text : { - __init_begin = .; - _sinittext = .; - INIT_TEXT - _einittext = .; - } - .init.data : { - INIT_DATA - } - . = ALIGN(16); - .init.setup : { - __setup_start = .; - *(.init.setup) - __setup_end = .; - } - .initcall.init : { - __initcall_start = .; - INITCALLS - __initcall_end = .; - } - .con_initcall.init : { - __con_initcall_start = .; - *(.con_initcall.init) - __con_initcall_end = .; - } - SECURITY_INIT - - . = ALIGN(4); - .tsb_ldquad_phys_patch : { - __tsb_ldquad_phys_patch = .; - *(.tsb_ldquad_phys_patch) - __tsb_ldquad_phys_patch_end = .; - } - - .tsb_phys_patch : { - __tsb_phys_patch = .; - *(.tsb_phys_patch) - __tsb_phys_patch_end = .; - } - - .cpuid_patch : { - __cpuid_patch = .; - *(.cpuid_patch) - __cpuid_patch_end = .; - } - - .sun4v_1insn_patch : { - __sun4v_1insn_patch = .; - *(.sun4v_1insn_patch) - __sun4v_1insn_patch_end = .; - } - .sun4v_2insn_patch : { - __sun4v_2insn_patch = .; - *(.sun4v_2insn_patch) - __sun4v_2insn_patch_end = .; - } - -#ifdef CONFIG_BLK_DEV_INITRD - . = ALIGN(PAGE_SIZE); - .init.ramfs : { - __initramfs_start = .; - *(.init.ramfs) - __initramfs_end = .; - } -#endif - - PERCPU(PAGE_SIZE) - - . = ALIGN(PAGE_SIZE); - __init_end = .; - __bss_start = .; - .sbss : { - *(.sbss) - *(.scommon) - } - .bss : { - *(.dynbss) - *(.bss) - *(COMMON) - } - _end = . ; - PROVIDE (end = .); - - /DISCARD/ : { - EXIT_TEXT - EXIT_DATA - *(.exitcall.exit) - } - - STABS_DEBUG - DWARF_DEBUG -} diff --git a/arch/sparc64/kernel/winfixup.S b/arch/sparc64/kernel/winfixup.S deleted file mode 100644 index a6b0863c27df..000000000000 --- a/arch/sparc64/kernel/winfixup.S +++ /dev/null @@ -1,156 +0,0 @@ -/* winfixup.S: Handle cases where user stack pointer is found to be bogus. - * - * Copyright (C) 1997, 2006 David S. Miller (davem@davemloft.net) - */ - -#include <asm/asi.h> -#include <asm/head.h> -#include <asm/page.h> -#include <asm/ptrace.h> -#include <asm/processor.h> -#include <asm/spitfire.h> -#include <asm/thread_info.h> - - .text - - /* It used to be the case that these register window fault - * handlers could run via the save and restore instructions - * done by the trap entry and exit code. They now do the - * window spill/fill by hand, so that case no longer can occur. - */ - - .align 32 -fill_fixup: - TRAP_LOAD_THREAD_REG(%g6, %g1) - rdpr %tstate, %g1 - and %g1, TSTATE_CWP, %g1 - or %g4, FAULT_CODE_WINFIXUP, %g4 - stb %g4, [%g6 + TI_FAULT_CODE] - stx %g5, [%g6 + TI_FAULT_ADDR] - wrpr %g1, %cwp - ba,pt %xcc, etrap - rd %pc, %g7 - call do_sparc64_fault - add %sp, PTREGS_OFF, %o0 - ba,pt %xcc, rtrap - nop - - /* Be very careful about usage of the trap globals here. - * You cannot touch %g5 as that has the fault information. - */ -spill_fixup: -spill_fixup_mna: -spill_fixup_dax: - TRAP_LOAD_THREAD_REG(%g6, %g1) - ldx [%g6 + TI_FLAGS], %g1 - andcc %g1, _TIF_32BIT, %g0 - ldub [%g6 + TI_WSAVED], %g1 - sll %g1, 3, %g3 - add %g6, %g3, %g3 - stx %sp, [%g3 + TI_RWIN_SPTRS] - sll %g1, 7, %g3 - bne,pt %xcc, 1f - add %g6, %g3, %g3 - stx %l0, [%g3 + TI_REG_WINDOW + 0x00] - stx %l1, [%g3 + TI_REG_WINDOW + 0x08] - stx %l2, [%g3 + TI_REG_WINDOW + 0x10] - stx %l3, [%g3 + TI_REG_WINDOW + 0x18] - stx %l4, [%g3 + TI_REG_WINDOW + 0x20] - stx %l5, [%g3 + TI_REG_WINDOW + 0x28] - stx %l6, [%g3 + TI_REG_WINDOW + 0x30] - stx %l7, [%g3 + TI_REG_WINDOW + 0x38] - stx %i0, [%g3 + TI_REG_WINDOW + 0x40] - stx %i1, [%g3 + TI_REG_WINDOW + 0x48] - stx %i2, [%g3 + TI_REG_WINDOW + 0x50] - stx %i3, [%g3 + TI_REG_WINDOW + 0x58] - stx %i4, [%g3 + TI_REG_WINDOW + 0x60] - stx %i5, [%g3 + TI_REG_WINDOW + 0x68] - stx %i6, [%g3 + TI_REG_WINDOW + 0x70] - ba,pt %xcc, 2f - stx %i7, [%g3 + TI_REG_WINDOW + 0x78] -1: stw %l0, [%g3 + TI_REG_WINDOW + 0x00] - stw %l1, [%g3 + TI_REG_WINDOW + 0x04] - stw %l2, [%g3 + TI_REG_WINDOW + 0x08] - stw %l3, [%g3 + TI_REG_WINDOW + 0x0c] - stw %l4, [%g3 + TI_REG_WINDOW + 0x10] - stw %l5, [%g3 + TI_REG_WINDOW + 0x14] - stw %l6, [%g3 + TI_REG_WINDOW + 0x18] - stw %l7, [%g3 + TI_REG_WINDOW + 0x1c] - stw %i0, [%g3 + TI_REG_WINDOW + 0x20] - stw %i1, [%g3 + TI_REG_WINDOW + 0x24] - stw %i2, [%g3 + TI_REG_WINDOW + 0x28] - stw %i3, [%g3 + TI_REG_WINDOW + 0x2c] - stw %i4, [%g3 + TI_REG_WINDOW + 0x30] - stw %i5, [%g3 + TI_REG_WINDOW + 0x34] - stw %i6, [%g3 + TI_REG_WINDOW + 0x38] - stw %i7, [%g3 + TI_REG_WINDOW + 0x3c] -2: add %g1, 1, %g1 - stb %g1, [%g6 + TI_WSAVED] - rdpr %tstate, %g1 - andcc %g1, TSTATE_PRIV, %g0 - saved - be,pn %xcc, 1f - and %g1, TSTATE_CWP, %g1 - retry -1: mov FAULT_CODE_WRITE | FAULT_CODE_DTLB | FAULT_CODE_WINFIXUP, %g4 - stb %g4, [%g6 + TI_FAULT_CODE] - stx %g5, [%g6 + TI_FAULT_ADDR] - wrpr %g1, %cwp - ba,pt %xcc, etrap - rd %pc, %g7 - call do_sparc64_fault - add %sp, PTREGS_OFF, %o0 - ba,a,pt %xcc, rtrap - -winfix_mna: - andn %g3, 0x7f, %g3 - add %g3, 0x78, %g3 - wrpr %g3, %tnpc - done - -fill_fixup_mna: - rdpr %tstate, %g1 - and %g1, TSTATE_CWP, %g1 - wrpr %g1, %cwp - ba,pt %xcc, etrap - rd %pc, %g7 - sethi %hi(tlb_type), %g1 - lduw [%g1 + %lo(tlb_type)], %g1 - cmp %g1, 3 - bne,pt %icc, 1f - add %sp, PTREGS_OFF, %o0 - mov %l4, %o2 - call sun4v_do_mna - mov %l5, %o1 - ba,a,pt %xcc, rtrap -1: mov %l4, %o1 - mov %l5, %o2 - call mem_address_unaligned - nop - ba,a,pt %xcc, rtrap - -winfix_dax: - andn %g3, 0x7f, %g3 - add %g3, 0x74, %g3 - wrpr %g3, %tnpc - done - -fill_fixup_dax: - rdpr %tstate, %g1 - and %g1, TSTATE_CWP, %g1 - wrpr %g1, %cwp - ba,pt %xcc, etrap - rd %pc, %g7 - sethi %hi(tlb_type), %g1 - mov %l4, %o1 - lduw [%g1 + %lo(tlb_type)], %g1 - mov %l5, %o2 - cmp %g1, 3 - bne,pt %icc, 1f - add %sp, PTREGS_OFF, %o0 - call sun4v_data_access_exception - nop - ba,a,pt %xcc, rtrap -1: call spitfire_data_access_exception - nop - ba,a,pt %xcc, rtrap |