diff options
Diffstat (limited to 'arch/powerpc/kernel')
38 files changed, 835 insertions, 524 deletions
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 8120d428ebfd..e0fa80eca366 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -25,8 +25,8 @@ obj-$(CONFIG_PPC_970_NAP) += idle_power4.o obj-$(CONFIG_PPC_OF) += of_device.o of_platform.o prom_parse.o procfs-$(CONFIG_PPC64) := proc_ppc64.o obj-$(CONFIG_PROC_FS) += $(procfs-y) -rtaspci-$(CONFIG_PPC64) := rtas_pci.o -obj-$(CONFIG_PPC_RTAS) += rtas.o rtas-rtc.o $(rtaspci-y) +rtaspci-$(CONFIG_PPC64)-$(CONFIG_PCI) := rtas_pci.o +obj-$(CONFIG_PPC_RTAS) += rtas.o rtas-rtc.o $(rtaspci-y-y) obj-$(CONFIG_RTAS_FLASH) += rtas_flash.o obj-$(CONFIG_RTAS_PROC) += rtas-proc.o obj-$(CONFIG_LPARCFG) += lparcfg.o diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c index 4734b5de599d..5c9ff7f5c44e 100644 --- a/arch/powerpc/kernel/align.c +++ b/arch/powerpc/kernel/align.c @@ -241,7 +241,7 @@ static int emulate_dcbz(struct pt_regs *regs, unsigned char __user *addr) if (user_mode(regs) && !access_ok(VERIFY_WRITE, p, size)) return -EFAULT; for (i = 0; i < size / sizeof(long); ++i) - if (__put_user(0, p+i)) + if (__put_user_inatomic(0, p+i)) return -EFAULT; return 1; } @@ -288,7 +288,8 @@ static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr, } else { unsigned long pc = regs->nip ^ (swiz & 4); - if (__get_user(instr, (unsigned int __user *)pc)) + if (__get_user_inatomic(instr, + (unsigned int __user *)pc)) return -EFAULT; if (swiz == 0 && (flags & SW)) instr = cpu_to_le32(instr); @@ -324,27 +325,31 @@ static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr, ((nb0 + 3) / 4) * sizeof(unsigned long)); for (i = 0; i < nb; ++i, ++p) - if (__get_user(REG_BYTE(rptr, i ^ bswiz), SWIZ_PTR(p))) + if (__get_user_inatomic(REG_BYTE(rptr, i ^ bswiz), + SWIZ_PTR(p))) return -EFAULT; if (nb0 > 0) { rptr = ®s->gpr[0]; addr += nb; for (i = 0; i < nb0; ++i, ++p) - if (__get_user(REG_BYTE(rptr, i ^ bswiz), - SWIZ_PTR(p))) + if (__get_user_inatomic(REG_BYTE(rptr, + i ^ bswiz), + SWIZ_PTR(p))) return -EFAULT; } } else { for (i = 0; i < nb; ++i, ++p) - if (__put_user(REG_BYTE(rptr, i ^ bswiz), SWIZ_PTR(p))) + if (__put_user_inatomic(REG_BYTE(rptr, i ^ bswiz), + SWIZ_PTR(p))) return -EFAULT; if (nb0 > 0) { rptr = ®s->gpr[0]; addr += nb; for (i = 0; i < nb0; ++i, ++p) - if (__put_user(REG_BYTE(rptr, i ^ bswiz), - SWIZ_PTR(p))) + if (__put_user_inatomic(REG_BYTE(rptr, + i ^ bswiz), + SWIZ_PTR(p))) return -EFAULT; } } @@ -398,7 +403,8 @@ int fix_alignment(struct pt_regs *regs) if (cpu_has_feature(CPU_FTR_PPC_LE) && (regs->msr & MSR_LE)) pc ^= 4; - if (unlikely(__get_user(instr, (unsigned int __user *)pc))) + if (unlikely(__get_user_inatomic(instr, + (unsigned int __user *)pc))) return -EFAULT; if (cpu_has_feature(CPU_FTR_REAL_LE) && (regs->msr & MSR_LE)) instr = cpu_to_le32(instr); @@ -474,16 +480,16 @@ int fix_alignment(struct pt_regs *regs) p = (unsigned long) addr; switch (nb) { case 8: - ret |= __get_user(data.v[0], SWIZ_PTR(p++)); - ret |= __get_user(data.v[1], SWIZ_PTR(p++)); - ret |= __get_user(data.v[2], SWIZ_PTR(p++)); - ret |= __get_user(data.v[3], SWIZ_PTR(p++)); + ret |= __get_user_inatomic(data.v[0], SWIZ_PTR(p++)); + ret |= __get_user_inatomic(data.v[1], SWIZ_PTR(p++)); + ret |= __get_user_inatomic(data.v[2], SWIZ_PTR(p++)); + ret |= __get_user_inatomic(data.v[3], SWIZ_PTR(p++)); case 4: - ret |= __get_user(data.v[4], SWIZ_PTR(p++)); - ret |= __get_user(data.v[5], SWIZ_PTR(p++)); + ret |= __get_user_inatomic(data.v[4], SWIZ_PTR(p++)); + ret |= __get_user_inatomic(data.v[5], SWIZ_PTR(p++)); case 2: - ret |= __get_user(data.v[6], SWIZ_PTR(p++)); - ret |= __get_user(data.v[7], SWIZ_PTR(p++)); + ret |= __get_user_inatomic(data.v[6], SWIZ_PTR(p++)); + ret |= __get_user_inatomic(data.v[7], SWIZ_PTR(p++)); if (unlikely(ret)) return -EFAULT; } @@ -551,16 +557,16 @@ int fix_alignment(struct pt_regs *regs) p = (unsigned long) addr; switch (nb) { case 8: - ret |= __put_user(data.v[0], SWIZ_PTR(p++)); - ret |= __put_user(data.v[1], SWIZ_PTR(p++)); - ret |= __put_user(data.v[2], SWIZ_PTR(p++)); - ret |= __put_user(data.v[3], SWIZ_PTR(p++)); + ret |= __put_user_inatomic(data.v[0], SWIZ_PTR(p++)); + ret |= __put_user_inatomic(data.v[1], SWIZ_PTR(p++)); + ret |= __put_user_inatomic(data.v[2], SWIZ_PTR(p++)); + ret |= __put_user_inatomic(data.v[3], SWIZ_PTR(p++)); case 4: - ret |= __put_user(data.v[4], SWIZ_PTR(p++)); - ret |= __put_user(data.v[5], SWIZ_PTR(p++)); + ret |= __put_user_inatomic(data.v[4], SWIZ_PTR(p++)); + ret |= __put_user_inatomic(data.v[5], SWIZ_PTR(p++)); case 2: - ret |= __put_user(data.v[6], SWIZ_PTR(p++)); - ret |= __put_user(data.v[7], SWIZ_PTR(p++)); + ret |= __put_user_inatomic(data.v[6], SWIZ_PTR(p++)); + ret |= __put_user_inatomic(data.v[7], SWIZ_PTR(p++)); } if (unlikely(ret)) return -EFAULT; diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 030d300cd71c..0c5150c69175 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -77,7 +77,6 @@ int main(void) DEFINE(KSP_VSID, offsetof(struct thread_struct, ksp_vsid)); #else /* CONFIG_PPC64 */ DEFINE(PGDIR, offsetof(struct thread_struct, pgdir)); - DEFINE(LAST_SYSCALL, offsetof(struct thread_struct, last_syscall)); #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) DEFINE(THREAD_DBCR0, offsetof(struct thread_struct, dbcr0)); DEFINE(PT_PTRACED, PT_PTRACED); @@ -140,6 +139,7 @@ int main(void) DEFINE(PACA_SYSTEM_TIME, offsetof(struct paca_struct, system_time)); DEFINE(PACA_SLBSHADOWPTR, offsetof(struct paca_struct, slb_shadow_ptr)); DEFINE(PACA_DATA_OFFSET, offsetof(struct paca_struct, data_offset)); + DEFINE(PACA_TRAP_SAVE, offsetof(struct paca_struct, trap_save)); DEFINE(SLBSHADOW_STACKVSID, offsetof(struct slb_shadow, save_area[SLB_NUM_BOLTED - 1].vsid)); diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c index 3678997339d6..e7b684689e04 100644 --- a/arch/powerpc/kernel/btext.c +++ b/arch/powerpc/kernel/btext.c @@ -161,33 +161,33 @@ int btext_initialize(struct device_node *np) unsigned long address = 0; const u32 *prop; - prop = get_property(np, "linux,bootx-width", NULL); + prop = of_get_property(np, "linux,bootx-width", NULL); if (prop == NULL) - prop = get_property(np, "width", NULL); + prop = of_get_property(np, "width", NULL); if (prop == NULL) return -EINVAL; width = *prop; - prop = get_property(np, "linux,bootx-height", NULL); + prop = of_get_property(np, "linux,bootx-height", NULL); if (prop == NULL) - prop = get_property(np, "height", NULL); + prop = of_get_property(np, "height", NULL); if (prop == NULL) return -EINVAL; height = *prop; - prop = get_property(np, "linux,bootx-depth", NULL); + prop = of_get_property(np, "linux,bootx-depth", NULL); if (prop == NULL) - prop = get_property(np, "depth", NULL); + prop = of_get_property(np, "depth", NULL); if (prop == NULL) return -EINVAL; depth = *prop; pitch = width * ((depth + 7) / 8); - prop = get_property(np, "linux,bootx-linebytes", NULL); + prop = of_get_property(np, "linux,bootx-linebytes", NULL); if (prop == NULL) - prop = get_property(np, "linebytes", NULL); + prop = of_get_property(np, "linebytes", NULL); if (prop && *prop != 0xffffffffu) pitch = *prop; if (pitch == 1) pitch = 0x1000; - prop = get_property(np, "address", NULL); + prop = of_get_property(np, "address", NULL); if (prop) address = *prop; @@ -219,7 +219,7 @@ int __init btext_find_display(int allow_nonstdout) struct device_node *np = NULL; int rc = -ENODEV; - name = get_property(of_chosen, "linux,stdout-path", NULL); + name = of_get_property(of_chosen, "linux,stdout-path", NULL); if (name != NULL) { np = of_find_node_by_path(name); if (np != NULL) { @@ -236,7 +236,7 @@ int __init btext_find_display(int allow_nonstdout) return rc; for (np = NULL; (np = of_find_node_by_type(np, "display"));) { - if (get_property(np, "linux,opened", NULL)) { + if (of_get_property(np, "linux,opened", NULL)) { printk("trying %s ...\n", np->full_name); rc = btext_initialize(np); printk("result: %d\n", rc); diff --git a/arch/powerpc/kernel/cpu_setup_pa6t.S b/arch/powerpc/kernel/cpu_setup_pa6t.S index 4047be25c4d2..d62cb9cae4e9 100644 --- a/arch/powerpc/kernel/cpu_setup_pa6t.S +++ b/arch/powerpc/kernel/cpu_setup_pa6t.S @@ -34,7 +34,7 @@ _GLOBAL(__setup_cpu_pa6t) beqlr mfspr r0,SPRN_HID5 - ori r0,r0,0x30 + ori r0,r0,0x38 mtspr SPRN_HID5,r0 mfspr r0,SPRN_LPCR diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index e4006dc087ca..9cb24d20f0f9 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -389,6 +389,8 @@ static struct cpu_spec cpu_specs[] = { .pmc_type = PPC_PMC_PA6T, .cpu_setup = __setup_cpu_pa6t, .cpu_restore = __restore_cpu_pa6t, + .oprofile_cpu_type = "ppc64/pa6t", + .oprofile_type = PPC_OPROFILE_PA6T, .platform = "pa6t", }, { /* default match */ @@ -558,6 +560,18 @@ static struct cpu_spec cpu_specs[] = { .cpu_setup = __setup_cpu_750cx, .platform = "ppc750", }, + { /* 750CL */ + .pvr_mask = 0xfffff0f0, + .pvr_value = 0x00087010, + .cpu_name = "750CL", + .cpu_features = CPU_FTRS_750CL, + .cpu_user_features = COMMON_USER | PPC_FEATURE_PPC_LE, + .icache_bsize = 32, + .dcache_bsize = 32, + .num_pmcs = 4, + .cpu_setup = __setup_cpu_750, + .platform = "ppc750", + }, { /* 745/755 */ .pvr_mask = 0xfffff000, .pvr_value = 0x00083000, diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index c03e829fee3c..c29d1652a421 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -191,7 +191,6 @@ stack_ovf: 0: _GLOBAL(DoSyscall) - stw r0,THREAD+LAST_SYSCALL(r2) stw r3,ORIG_GPR3(r1) li r12,0 stw r12,RESULT(r1) diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index 97cedcd6c9b4..1111fcec7673 100644 --- a/arch/powerpc/kernel/head_64.S +++ b/arch/powerpc/kernel/head_64.S @@ -278,8 +278,12 @@ exception_marker: beq- 1f; \ ld r1,PACAKSAVE(r13); /* kernel stack to use */ \ 1: cmpdi cr1,r1,0; /* check if r1 is in userspace */ \ - bge- cr1,bad_stack; /* abort if it is */ \ - std r9,_CCR(r1); /* save CR in stackframe */ \ + bge- cr1,2f; /* abort if it is */ \ + b 3f; \ +2: li r1,(n); /* will be reloaded later */ \ + sth r1,PACA_TRAP_SAVE(r13); \ + b bad_stack; \ +3: std r9,_CCR(r1); /* save CR in stackframe */ \ std r11,_NIP(r1); /* save SRR0 in stackframe */ \ std r12,_MSR(r1); /* save SRR1 in stackframe */ \ std r10,0(r1); /* make stack chain pointer */ \ @@ -940,6 +944,8 @@ bad_stack: SAVE_2GPRS(7,r1) SAVE_10GPRS(12,r1) SAVE_10GPRS(22,r1) + lhz r12,PACA_TRAP_SAVE(r13) + std r12,_TRAP(r1) addi r11,r1,INT_FRAME_SIZE std r11,0(r1) li r12,0 @@ -1555,7 +1561,6 @@ _GLOBAL(generic_secondary_smp_init) /* turn on 64-bit mode */ bl .enable_64b_mode - isync /* Set up a paca value for this processor. Since we have the * physical cpu id in r24, we need to search the pacas to find @@ -1735,10 +1740,6 @@ _STATIC(__boot_from_prom) /* We never return */ trap -/* - * At this point, r3 contains the physical address we are running at, - * returned by prom_init() - */ _STATIC(__after_prom_start) /* @@ -1851,7 +1852,6 @@ __secondary_start_pmac_0: _GLOBAL(pmac_secondary_start) /* turn on 64-bit mode */ bl .enable_64b_mode - isync /* Copy some CPU settings from CPU 0 */ bl .__restore_cpu_ppc970 diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c index 82bd2f10770f..9a8c9af43b22 100644 --- a/arch/powerpc/kernel/ibmebus.c +++ b/arch/powerpc/kernel/ibmebus.c @@ -2,36 +2,37 @@ * IBM PowerPC IBM eBus Infrastructure Support. * * Copyright (c) 2005 IBM Corporation + * Joachim Fenkes <fenkes@de.ibm.com> * Heiko J Schick <schickhj@de.ibm.com> - * + * * All rights reserved. * - * This source code is distributed under a dual license of GPL v2.0 and OpenIB - * BSD. + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. * * OpenIB BSD License * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: * - * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. * - * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation * and/or other materials - * provided with the distribution. + * provided with the distribution. * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER - * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ @@ -43,19 +44,19 @@ #include <asm/ibmebus.h> #include <asm/abs_addr.h> -static struct ibmebus_dev ibmebus_bus_device = { /* fake "parent" device */ - .name = ibmebus_bus_device.ofdev.dev.bus_id, - .ofdev.dev.bus_id = "ibmebus", - .ofdev.dev.bus = &ibmebus_bus_type, +static struct device ibmebus_bus_device = { /* fake "parent" device */ + .bus_id = "ibmebus", }; +struct bus_type ibmebus_bus_type; + static void *ibmebus_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag) { void *mem; - + mem = kmalloc(size, flag); *dma_handle = (dma_addr_t)mem; @@ -63,7 +64,7 @@ static void *ibmebus_alloc_coherent(struct device *dev, } static void ibmebus_free_coherent(struct device *dev, - size_t size, void *vaddr, + size_t size, void *vaddr, dma_addr_t dma_handle) { kfree(vaddr); @@ -79,7 +80,7 @@ static dma_addr_t ibmebus_map_single(struct device *dev, static void ibmebus_unmap_single(struct device *dev, dma_addr_t dma_addr, - size_t size, + size_t size, enum dma_data_direction direction) { return; @@ -90,13 +91,13 @@ static int ibmebus_map_sg(struct device *dev, int nents, enum dma_data_direction direction) { int i; - + for (i = 0; i < nents; i++) { - sg[i].dma_address = (dma_addr_t)page_address(sg[i].page) + sg[i].dma_address = (dma_addr_t)page_address(sg[i].page) + sg[i].offset; sg[i].dma_length = sg[i].length; } - + return nents; } @@ -128,15 +129,15 @@ static int ibmebus_bus_probe(struct device *dev) struct ibmebus_driver *ibmebusdrv = to_ibmebus_driver(dev->driver); const struct of_device_id *id; int error = -ENODEV; - + if (!ibmebusdrv->probe) return error; - + id = of_match_device(ibmebusdrv->id_table, &ibmebusdev->ofdev); if (id) { error = ibmebusdrv->probe(ibmebusdev, id); } - + return error; } @@ -144,11 +145,11 @@ static int ibmebus_bus_remove(struct device *dev) { struct ibmebus_dev *ibmebusdev = to_ibmebus_dev(dev); struct ibmebus_driver *ibmebusdrv = to_ibmebus_driver(dev->driver); - + if (ibmebusdrv->remove) { return ibmebusdrv->remove(ibmebusdev); } - + return 0; } @@ -158,21 +159,12 @@ static void __devinit ibmebus_dev_release(struct device *dev) kfree(to_ibmebus_dev(dev)); } -static ssize_t ibmebusdev_show_name(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%s\n", to_ibmebus_dev(dev)->name); -} -static DEVICE_ATTR(name, S_IRUSR | S_IRGRP | S_IROTH, ibmebusdev_show_name, - NULL); - -static struct ibmebus_dev* __devinit ibmebus_register_device_common( +static int __devinit ibmebus_register_device_common( struct ibmebus_dev *dev, const char *name) { int err = 0; - dev->name = name; - dev->ofdev.dev.parent = &ibmebus_bus_device.ofdev.dev; + dev->ofdev.dev.parent = &ibmebus_bus_device; dev->ofdev.dev.bus = &ibmebus_bus_type; dev->ofdev.dev.release = ibmebus_dev_release; @@ -181,17 +173,15 @@ static struct ibmebus_dev* __devinit ibmebus_register_device_common( dev->ofdev.dev.archdata.numa_node = of_node_to_nid(dev->ofdev.node); /* An ibmebusdev is based on a of_device. We have to change the - * bus type to use our own DMA mapping operations. - */ + * bus type to use our own DMA mapping operations. + */ if ((err = of_device_register(&dev->ofdev)) != 0) { printk(KERN_ERR "%s: failed to register device (%d).\n", __FUNCTION__, err); - return NULL; + return -ENODEV; } - - device_create_file(&dev->ofdev.dev, &dev_attr_name); - - return dev; + + return 0; } static struct ibmebus_dev* __devinit ibmebus_register_device_node( @@ -201,35 +191,35 @@ static struct ibmebus_dev* __devinit ibmebus_register_device_node( const char *loc_code; int length; - loc_code = get_property(dn, "ibm,loc-code", NULL); + loc_code = of_get_property(dn, "ibm,loc-code", NULL); if (!loc_code) { printk(KERN_WARNING "%s: node %s missing 'ibm,loc-code'\n", __FUNCTION__, dn->name ? dn->name : "<unknown>"); - return NULL; + return ERR_PTR(-EINVAL); } - + if (strlen(loc_code) == 0) { printk(KERN_WARNING "%s: 'ibm,loc-code' is invalid\n", __FUNCTION__); - return NULL; + return ERR_PTR(-EINVAL); } dev = kzalloc(sizeof(struct ibmebus_dev), GFP_KERNEL); if (!dev) { - return NULL; + return ERR_PTR(-ENOMEM); } dev->ofdev.node = of_node_get(dn); - + length = strlen(loc_code); - memcpy(dev->ofdev.dev.bus_id, loc_code - + (length - min(length, BUS_ID_SIZE - 1)), + memcpy(dev->ofdev.dev.bus_id, loc_code + + (length - min(length, BUS_ID_SIZE - 1)), min(length, BUS_ID_SIZE - 1)); /* Register with generic device framework. */ - if (ibmebus_register_device_common(dev, dn->name) == NULL) { + if (ibmebus_register_device_common(dev, dn->name) != 0) { kfree(dev); - return NULL; + return ERR_PTR(-ENODEV); } return dev; @@ -238,17 +228,16 @@ static struct ibmebus_dev* __devinit ibmebus_register_device_node( static void ibmebus_probe_of_nodes(char* name) { struct device_node *dn = NULL; - + while ((dn = of_find_node_by_name(dn, name))) { - if (ibmebus_register_device_node(dn) == NULL) { + if (IS_ERR(ibmebus_register_device_node(dn))) { of_node_put(dn); - return; } } - + of_node_put(dn); - + return; } @@ -262,17 +251,21 @@ static void ibmebus_add_devices_by_id(struct of_device_id *idt) return; } -static int ibmebus_match_helper(struct device *dev, void *data) +static int ibmebus_match_name(struct device *dev, void *data) { - if (strcmp((char*)data, to_ibmebus_dev(dev)->name) == 0) + const struct ibmebus_dev *ebus_dev = to_ibmebus_dev(dev); + const char *name; + + name = of_get_property(ebus_dev->ofdev.node, "name", NULL); + + if (name && (strcmp(data, name) == 0)) return 1; - + return 0; } static int ibmebus_unregister_device(struct device *dev) { - device_remove_file(dev, &dev_attr_name); of_device_unregister(to_of_device(dev)); return 0; @@ -281,17 +274,16 @@ static int ibmebus_unregister_device(struct device *dev) static void ibmebus_remove_devices_by_id(struct of_device_id *idt) { struct device *dev; - + while (strlen(idt->name) > 0) { - while ((dev = bus_find_device(&ibmebus_bus_type, NULL, + while ((dev = bus_find_device(&ibmebus_bus_type, NULL, (void*)idt->name, - ibmebus_match_helper))) { + ibmebus_match_name))) { ibmebus_unregister_device(dev); } idt++; - } - + return; } @@ -307,30 +299,33 @@ int ibmebus_register_driver(struct ibmebus_driver *drv) if ((err = driver_register(&drv->driver) != 0)) return err; + /* remove all supported devices first, in case someone + * probed them manually before registering the driver */ + ibmebus_remove_devices_by_id(drv->id_table); ibmebus_add_devices_by_id(drv->id_table); - + return 0; } EXPORT_SYMBOL(ibmebus_register_driver); void ibmebus_unregister_driver(struct ibmebus_driver *drv) -{ +{ driver_unregister(&drv->driver); ibmebus_remove_devices_by_id(drv->id_table); } EXPORT_SYMBOL(ibmebus_unregister_driver); int ibmebus_request_irq(struct ibmebus_dev *dev, - u32 ist, + u32 ist, irq_handler_t handler, unsigned long irq_flags, const char * devname, void *dev_id) { unsigned int irq = irq_create_mapping(NULL, ist); - + if (irq == NO_IRQ) return -EINVAL; - + return request_irq(irq, handler, irq_flags, devname, dev_id); } @@ -339,56 +334,163 @@ EXPORT_SYMBOL(ibmebus_request_irq); void ibmebus_free_irq(struct ibmebus_dev *dev, u32 ist, void *dev_id) { unsigned int irq = irq_find_mapping(NULL, ist); - + free_irq(irq, dev_id); } EXPORT_SYMBOL(ibmebus_free_irq); static int ibmebus_bus_match(struct device *dev, struct device_driver *drv) -{ +{ const struct ibmebus_dev *ebus_dev = to_ibmebus_dev(dev); struct ibmebus_driver *ebus_drv = to_ibmebus_driver(drv); const struct of_device_id *ids = ebus_drv->id_table; const struct of_device_id *found_id; - + if (!ids) return 0; - + found_id = of_match_device(ids, &ebus_dev->ofdev); if (found_id) return 1; - + return 0; } +static ssize_t name_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ibmebus_dev *ebus_dev = to_ibmebus_dev(dev); + const char *name = of_get_property(ebus_dev->ofdev.node, "name", NULL); + return sprintf(buf, "%s\n", name); +} + +static struct device_attribute ibmebus_dev_attrs[] = { + __ATTR_RO(name), + __ATTR_NULL +}; + +static int ibmebus_match_path(struct device *dev, void *data) +{ + int rc; + struct device_node *dn = + of_node_get(to_ibmebus_dev(dev)->ofdev.node); + + rc = (dn->full_name && (strcasecmp((char*)data, dn->full_name) == 0)); + + of_node_put(dn); + return rc; +} + +static char *ibmebus_chomp(const char *in, size_t count) +{ + char *out = (char*)kmalloc(count + 1, GFP_KERNEL); + if (!out) + return NULL; + + memcpy(out, in, count); + out[count] = '\0'; + if (out[count - 1] == '\n') + out[count - 1] = '\0'; + + return out; +} + +static ssize_t ibmebus_store_probe(struct bus_type *bus, + const char *buf, size_t count) +{ + struct device_node *dn = NULL; + struct ibmebus_dev *dev; + char *path; + ssize_t rc; + + path = ibmebus_chomp(buf, count); + if (!path) + return -ENOMEM; + + if (bus_find_device(&ibmebus_bus_type, NULL, path, + ibmebus_match_path)) { + printk(KERN_WARNING "%s: %s has already been probed\n", + __FUNCTION__, path); + rc = -EINVAL; + goto out; + } + + if ((dn = of_find_node_by_path(path))) { + dev = ibmebus_register_device_node(dn); + of_node_put(dn); + rc = IS_ERR(dev) ? PTR_ERR(dev) : count; + } else { + printk(KERN_WARNING "%s: no such device node: %s\n", + __FUNCTION__, path); + rc = -ENODEV; + } + +out: + kfree(path); + return rc; +} + +static ssize_t ibmebus_store_remove(struct bus_type *bus, + const char *buf, size_t count) +{ + struct device *dev; + char *path; + + path = ibmebus_chomp(buf, count); + if (!path) + return -ENOMEM; + + if ((dev = bus_find_device(&ibmebus_bus_type, NULL, path, + ibmebus_match_path))) { + ibmebus_unregister_device(dev); + + kfree(path); + return count; + } else { + printk(KERN_WARNING "%s: %s not on the bus\n", + __FUNCTION__, path); + + kfree(path); + return -ENODEV; + } +} + +static struct bus_attribute ibmebus_bus_attrs[] = { + __ATTR(probe, S_IWUSR, NULL, ibmebus_store_probe), + __ATTR(remove, S_IWUSR, NULL, ibmebus_store_remove), + __ATTR_NULL +}; + struct bus_type ibmebus_bus_type = { - .name = "ibmebus", - .match = ibmebus_bus_match, + .name = "ibmebus", + .match = ibmebus_bus_match, + .dev_attrs = ibmebus_dev_attrs, + .bus_attrs = ibmebus_bus_attrs }; EXPORT_SYMBOL(ibmebus_bus_type); static int __init ibmebus_bus_init(void) { int err; - + printk(KERN_INFO "IBM eBus Device Driver\n"); - + err = bus_register(&ibmebus_bus_type); if (err) { printk(KERN_ERR ":%s: failed to register IBM eBus.\n", __FUNCTION__); return err; } - - err = device_register(&ibmebus_bus_device.ofdev.dev); + + err = device_register(&ibmebus_bus_device); if (err) { - printk(KERN_WARNING "%s: device_register returned %i\n", + printk(KERN_WARNING "%s: device_register returned %i\n", __FUNCTION__, err); bus_unregister(&ibmebus_bus_type); return err; } - + return 0; } __initcall(ibmebus_bus_init); diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c index 95edad4faf26..c08ceca6277d 100644 --- a/arch/powerpc/kernel/iommu.c +++ b/arch/powerpc/kernel/iommu.c @@ -47,6 +47,8 @@ static int novmerge = 0; static int novmerge = 1; #endif +static int protect4gb = 1; + static inline unsigned long iommu_num_pages(unsigned long vaddr, unsigned long slen) { @@ -58,6 +60,16 @@ static inline unsigned long iommu_num_pages(unsigned long vaddr, return npages; } +static int __init setup_protect4gb(char *str) +{ + if (strcmp(str, "on") == 0) + protect4gb = 1; + else if (strcmp(str, "off") == 0) + protect4gb = 0; + + return 1; +} + static int __init setup_iommu(char *str) { if (!strcmp(str, "novmerge")) @@ -67,6 +79,7 @@ static int __init setup_iommu(char *str) return 1; } +__setup("protect4gb=", setup_protect4gb); __setup("iommu=", setup_iommu); static unsigned long iommu_range_alloc(struct iommu_table *tbl, @@ -429,6 +442,9 @@ void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist, struct iommu_table *iommu_init_table(struct iommu_table *tbl, int nid) { unsigned long sz; + unsigned long start_index, end_index; + unsigned long entries_per_4g; + unsigned long index; static int welcomed = 0; struct page *page; @@ -450,7 +466,7 @@ struct iommu_table *iommu_init_table(struct iommu_table *tbl, int nid) #ifdef CONFIG_CRASH_DUMP if (ppc_md.tce_get) { - unsigned long index, tceval; + unsigned long tceval; unsigned long tcecount = 0; /* @@ -480,6 +496,23 @@ struct iommu_table *iommu_init_table(struct iommu_table *tbl, int nid) ppc_md.tce_free(tbl, tbl->it_offset, tbl->it_size); #endif + /* + * DMA cannot cross 4 GB boundary. Mark last entry of each 4 + * GB chunk as reserved. + */ + if (protect4gb) { + entries_per_4g = 0x100000000l >> IOMMU_PAGE_SHIFT; + + /* Mark the last bit before a 4GB boundary as used */ + start_index = tbl->it_offset | (entries_per_4g - 1); + start_index -= tbl->it_offset; + + end_index = tbl->it_size; + + for (index = start_index; index < end_index - 1; index += entries_per_4g) + __set_bit(index, tbl->it_map); + } + if (!welcomed) { printk(KERN_INFO "IOMMU table initialized, virtual merging %s\n", novmerge ? "disabled" : "enabled"); diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 100930826850..6c83fe229e60 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -394,7 +394,7 @@ EXPORT_SYMBOL(do_softirq); #ifdef CONFIG_PPC_MERGE static LIST_HEAD(irq_hosts); -static spinlock_t irq_big_lock = SPIN_LOCK_UNLOCKED; +static DEFINE_SPINLOCK(irq_big_lock); static DEFINE_PER_CPU(unsigned int, irq_radix_reader); static unsigned int irq_radix_writer; struct irq_map_entry irq_map[NR_IRQS]; diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index dd2886f97e98..ef647e7a9dc3 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -59,12 +59,14 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) } if (!ret) { - memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t)); + memcpy(p->ainsn.insn, p->addr, + MAX_INSN_SIZE * sizeof(kprobe_opcode_t)); p->opcode = *p->addr; flush_icache_range((unsigned long)p->ainsn.insn, (unsigned long)p->ainsn.insn + sizeof(kprobe_opcode_t)); } + p->ainsn.boostable = 0; return ret; } @@ -232,6 +234,38 @@ static int __kprobes kprobe_handler(struct pt_regs *regs) return 1; ss_probe: + if (p->ainsn.boostable >= 0) { + unsigned int insn = *p->ainsn.insn; + + /* regs->nip is also adjusted if emulate_step returns 1 */ + ret = emulate_step(regs, insn); + if (ret > 0) { + /* + * Once this instruction has been boosted + * successfully, set the boostable flag + */ + if (unlikely(p->ainsn.boostable == 0)) + p->ainsn.boostable = 1; + + if (p->post_handler) + p->post_handler(p, regs, 0); + + kcb->kprobe_status = KPROBE_HIT_SSDONE; + reset_current_kprobe(); + preempt_enable_no_resched(); + return 1; + } else if (ret < 0) { + /* + * We don't allow kprobes on mtmsr(d)/rfi(d), etc. + * So, we should never get here... but, its still + * good to catch them, just in case... + */ + printk("Can't step on instruction %x\n", insn); + BUG(); + } else if (ret == 0) + /* This instruction can't be boosted */ + p->ainsn.boostable = -1; + } prepare_singlestep(p, regs); kcb->kprobe_status = KPROBE_HIT_SS; return 1; diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c index 325f490a10cc..63dd2c3ad95e 100644 --- a/arch/powerpc/kernel/legacy_serial.c +++ b/arch/powerpc/kernel/legacy_serial.c @@ -44,12 +44,12 @@ static int __init add_legacy_port(struct device_node *np, int want_index, int index; /* get clock freq. if present */ - clk = get_property(np, "clock-frequency", NULL); + clk = of_get_property(np, "clock-frequency", NULL); if (clk && *clk) clock = *clk; /* get default speed if present */ - spd = get_property(np, "current-speed", NULL); + spd = of_get_property(np, "current-speed", NULL); /* If we have a location index, then try to use it */ if (want_index >= 0 && want_index < MAX_LEGACY_SERIAL_PORTS) @@ -121,11 +121,11 @@ static int __init add_legacy_soc_port(struct device_node *np, /* We only support ports that have a clock frequency properly * encoded in the device-tree. */ - if (get_property(np, "clock-frequency", NULL) == NULL) + if (of_get_property(np, "clock-frequency", NULL) == NULL) return -1; /* if rtas uses this device, don't try to use it as well */ - if (get_property(np, "used-by-rtas", NULL) != NULL) + if (of_get_property(np, "used-by-rtas", NULL) != NULL) return -1; /* Get the address */ @@ -157,7 +157,7 @@ static int __init add_legacy_isa_port(struct device_node *np, DBG(" -> add_legacy_isa_port(%s)\n", np->full_name); /* Get the ISA port number */ - reg = get_property(np, "reg", NULL); + reg = of_get_property(np, "reg", NULL); if (reg == NULL) return -1; @@ -168,7 +168,7 @@ static int __init add_legacy_isa_port(struct device_node *np, /* Now look for an "ibm,aix-loc" property that gives us ordering * if any... */ - typep = get_property(np, "ibm,aix-loc", NULL); + typep = of_get_property(np, "ibm,aix-loc", NULL); /* If we have a location index, then use it */ if (typep && *typep == 'S') @@ -206,7 +206,7 @@ static int __init add_legacy_pci_port(struct device_node *np, * compatible UARTs on PCI need all sort of quirks (port offsets * etc...) that this code doesn't know about */ - if (get_property(np, "clock-frequency", NULL) == NULL) + if (of_get_property(np, "clock-frequency", NULL) == NULL) return -1; /* Get the PCI address. Assume BAR 0 */ @@ -232,7 +232,7 @@ static int __init add_legacy_pci_port(struct device_node *np, * we get to their "reg" property */ if (np != pci_dev) { - const u32 *reg = get_property(np, "reg", NULL); + const u32 *reg = of_get_property(np, "reg", NULL); if (reg && (*reg < 4)) index = lindex = *reg; } @@ -296,7 +296,7 @@ void __init find_legacy_serial_ports(void) DBG(" -> find_legacy_serial_port()\n"); /* Now find out if one of these is out firmware console */ - path = get_property(of_chosen, "linux,stdout-path", NULL); + path = of_get_property(of_chosen, "linux,stdout-path", NULL); if (path != NULL) { stdout = of_find_node_by_path(path); if (stdout) @@ -529,7 +529,7 @@ static int __init check_legacy_serial_console(void) } /* We are getting a weird phandle from OF ... */ /* ... So use the full path instead */ - name = get_property(of_chosen, "linux,stdout-path", NULL); + name = of_get_property(of_chosen, "linux,stdout-path", NULL); if (name == NULL) { DBG(" no linux,stdout-path !\n"); return -ENODEV; @@ -541,12 +541,12 @@ static int __init check_legacy_serial_console(void) } DBG("stdout is %s\n", prom_stdout->full_name); - name = get_property(prom_stdout, "name", NULL); + name = of_get_property(prom_stdout, "name", NULL); if (!name) { DBG(" stdout package has no name !\n"); goto not_found; } - spd = get_property(prom_stdout, "current-speed", NULL); + spd = of_get_property(prom_stdout, "current-speed", NULL); if (spd) speed = *spd; diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c index 89486b631284..c492cee90e0f 100644 --- a/arch/powerpc/kernel/lparcfg.c +++ b/arch/powerpc/kernel/lparcfg.c @@ -130,30 +130,31 @@ static int iseries_lparcfg_data(struct seq_file *m, void *v) /* * Methods used to fetch LPAR data when running on a pSeries platform. */ -/* find a better place for this function... */ static void log_plpar_hcall_return(unsigned long rc, char *tag) { - if (rc == 0) /* success, return */ + switch(rc) { + case 0: return; -/* check for null tag ? */ - if (rc == H_HARDWARE) - printk(KERN_INFO - "plpar-hcall (%s) failed with hardware fault\n", tag); - else if (rc == H_FUNCTION) - printk(KERN_INFO - "plpar-hcall (%s) failed; function not allowed\n", tag); - else if (rc == H_AUTHORITY) - printk(KERN_INFO - "plpar-hcall (%s) failed; not authorized to this" - " function\n", tag); - else if (rc == H_PARAMETER) - printk(KERN_INFO "plpar-hcall (%s) failed; Bad parameter(s)\n", - tag); - else - printk(KERN_INFO - "plpar-hcall (%s) failed with unexpected rc(0x%lx)\n", - tag, rc); - + case H_HARDWARE: + printk(KERN_INFO "plpar-hcall (%s) " + "Hardware fault\n", tag); + return; + case H_FUNCTION: + printk(KERN_INFO "plpar-hcall (%s) " + "Function not allowed\n", tag); + return; + case H_AUTHORITY: + printk(KERN_INFO "plpar-hcall (%s) " + "Not authorized to this function\n", tag); + return; + case H_PARAMETER: + printk(KERN_INFO "plpar-hcall (%s) " + "Bad parameter(s)\n",tag); + return; + default: + printk(KERN_INFO "plpar-hcall (%s) " + "Unexpected rc(0x%lx)\n", tag, rc); + } } /* @@ -321,15 +322,16 @@ static int pseries_lparcfg_data(struct seq_file *m, void *v) struct device_node *rtas_node; const int *lrdrp = NULL; - rtas_node = find_path_device("/rtas"); + rtas_node = of_find_node_by_path("/rtas"); if (rtas_node) - lrdrp = get_property(rtas_node, "ibm,lrdr-capacity", NULL); + lrdrp = of_get_property(rtas_node, "ibm,lrdr-capacity", NULL); if (lrdrp == NULL) { partition_potential_processors = vdso_data->processorCount; } else { partition_potential_processors = *(lrdrp + 4); } + of_node_put(rtas_node); partition_active_processors = lparcfg_count_active_processors(); @@ -537,25 +539,27 @@ static int lparcfg_data(struct seq_file *m, void *v) seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS); - rootdn = find_path_device("/"); + rootdn = of_find_node_by_path("/"); if (rootdn) { - tmp = get_property(rootdn, "model", NULL); + tmp = of_get_property(rootdn, "model", NULL); if (tmp) { model = tmp; /* Skip "IBM," - see platforms/iseries/dt.c */ if (firmware_has_feature(FW_FEATURE_ISERIES)) model += 4; } - tmp = get_property(rootdn, "system-id", NULL); + tmp = of_get_property(rootdn, "system-id", NULL); if (tmp) { system_id = tmp; /* Skip "IBM," - see platforms/iseries/dt.c */ if (firmware_has_feature(FW_FEATURE_ISERIES)) system_id += 4; } - lp_index_ptr = get_property(rootdn, "ibm,partition-no", NULL); + lp_index_ptr = of_get_property(rootdn, "ibm,partition-no", + NULL); if (lp_index_ptr) lp_index = *lp_index_ptr; + of_node_put(rootdn); } seq_printf(m, "serial_number=%s\n", system_id); seq_printf(m, "system_type=%s\n", model); diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c index a24b09c27718..704375bda73a 100644 --- a/arch/powerpc/kernel/machine_kexec_64.c +++ b/arch/powerpc/kernel/machine_kexec_64.c @@ -72,8 +72,8 @@ int default_machine_kexec_prepare(struct kimage *image) /* We also should not overwrite the tce tables */ for (node = of_find_node_by_type(NULL, "pci"); node != NULL; node = of_find_node_by_type(node, "pci")) { - basep = get_property(node, "linux,tce-base", NULL); - sizep = get_property(node, "linux,tce-size", NULL); + basep = of_get_property(node, "linux,tce-base", NULL); + sizep = of_get_property(node, "linux,tce-size", NULL); if (basep == NULL || sizep == NULL) continue; @@ -294,19 +294,19 @@ static unsigned long htab_base, kernel_end; static struct property htab_base_prop = { .name = "linux,htab-base", .length = sizeof(unsigned long), - .value = (unsigned char *)&htab_base, + .value = &htab_base, }; static struct property htab_size_prop = { .name = "linux,htab-size", .length = sizeof(unsigned long), - .value = (unsigned char *)&htab_size_bytes, + .value = &htab_size_bytes, }; static struct property kernel_end_prop = { .name = "linux,kernel-end", .length = sizeof(unsigned long), - .value = (unsigned char *)&kernel_end, + .value = &kernel_end, }; static void __init export_htab_values(void) @@ -335,7 +335,7 @@ static void __init export_htab_values(void) static struct property crashk_base_prop = { .name = "linux,crashkernel-base", .length = sizeof(unsigned long), - .value = (unsigned char *)&crashk_res.start, + .value = &crashk_res.start, }; static unsigned long crashk_size; @@ -343,7 +343,7 @@ static unsigned long crashk_size; static struct property crashk_size_prop = { .name = "linux,crashkernel-size", .length = sizeof(unsigned long), - .value = (unsigned char *)&crashk_size, + .value = &crashk_size, }; static void __init export_crashk_values(void) diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 412bea3cf813..98decf8ebff4 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -734,10 +734,6 @@ _GLOBAL(abs) sub r3,r3,r4 blr -_GLOBAL(_get_SP) - mr r3,r1 /* Close enough */ - blr - /* * Create a kernel thread * kernel_thread(fn, arg, flags) diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c index e921514e655b..0c8ea7659d92 100644 --- a/arch/powerpc/kernel/of_device.c +++ b/arch/powerpc/kernel/of_device.c @@ -120,6 +120,117 @@ void of_device_unregister(struct of_device *ofdev) } +static ssize_t of_device_get_modalias(struct of_device *ofdev, + char *str, ssize_t len) +{ + const char *compat; + int cplen, i; + ssize_t tsize, csize, repend; + + /* Name & Type */ + csize = snprintf(str, len, "of:N%sT%s", + ofdev->node->name, ofdev->node->type); + + /* Get compatible property if any */ + compat = of_get_property(ofdev->node, "compatible", &cplen); + if (!compat) + return csize; + + /* Find true end (we tolerate multiple \0 at the end */ + for (i=(cplen-1); i>=0 && !compat[i]; i--) + cplen--; + if (!cplen) + return csize; + cplen++; + + /* Check space (need cplen+1 chars including final \0) */ + tsize = csize + cplen; + repend = tsize; + + if (csize>=len) /* @ the limit, all is already filled */ + return tsize; + + if (tsize>=len) { /* limit compat list */ + cplen = len-csize-1; + repend = len; + } + + /* Copy and do char replacement */ + memcpy(&str[csize+1], compat, cplen); + for (i=csize; i<repend; i++) { + char c = str[i]; + if (c=='\0') + str[i] = 'C'; + else if (c==' ') + str[i] = '_'; + } + + return tsize; +} + +int of_device_uevent(struct device *dev, + char **envp, int num_envp, char *buffer, int buffer_size) +{ + struct of_device *ofdev; + const char *compat; + int i = 0, length = 0, seen = 0, cplen, sl; + + if (!dev) + return -ENODEV; + + ofdev = to_of_device(dev); + + if (add_uevent_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "OF_NAME=%s", ofdev->node->name)) + return -ENOMEM; + + if (add_uevent_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "OF_TYPE=%s", ofdev->node->type)) + return -ENOMEM; + + /* Since the compatible field can contain pretty much anything + * it's not really legal to split it out with commas. We split it + * up using a number of environment variables instead. */ + + compat = of_get_property(ofdev->node, "compatible", &cplen); + while (compat && *compat && cplen > 0) { + if (add_uevent_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "OF_COMPATIBLE_%d=%s", seen, compat)) + return -ENOMEM; + + sl = strlen (compat) + 1; + compat += sl; + cplen -= sl; + seen++; + } + + if (add_uevent_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "OF_COMPATIBLE_N=%d", seen)) + return -ENOMEM; + + /* modalias is trickier, we add it in 2 steps */ + if (add_uevent_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "MODALIAS=")) + return -ENOMEM; + + sl = of_device_get_modalias(ofdev, &buffer[length-1], + buffer_size-length); + if (sl >= (buffer_size-length)) + return -ENOMEM; + + length += sl; + + envp[i] = NULL; + + return 0; +} + + EXPORT_SYMBOL(of_match_node); EXPORT_SYMBOL(of_match_device); EXPORT_SYMBOL(of_device_register); @@ -127,3 +238,4 @@ EXPORT_SYMBOL(of_device_unregister); EXPORT_SYMBOL(of_dev_get); EXPORT_SYMBOL(of_dev_put); EXPORT_SYMBOL(of_release_dev); +EXPORT_SYMBOL(of_device_uevent); diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c index 9e7a4d249f03..908ed7926db4 100644 --- a/arch/powerpc/kernel/of_platform.c +++ b/arch/powerpc/kernel/of_platform.c @@ -133,6 +133,7 @@ static int of_platform_device_resume(struct device * dev) struct bus_type of_platform_bus_type = { .name = "of_platform", .match = of_platform_bus_match, + .uevent = of_device_uevent, .probe = of_platform_device_probe, .remove = of_platform_device_remove, .suspend = of_platform_device_suspend, @@ -177,7 +178,7 @@ static void of_platform_make_bus_id(struct of_device *dev) * and 'D' for MMIO DCRs. */ #ifdef CONFIG_PPC_DCR - reg = get_property(node, "dcr-reg", NULL); + reg = of_get_property(node, "dcr-reg", NULL); if (reg) { #ifdef CONFIG_PPC_DCR_NATIVE snprintf(name, BUS_ID_SIZE, "d%x.%s", @@ -197,7 +198,7 @@ static void of_platform_make_bus_id(struct of_device *dev) /* * For MMIO, get the physical address */ - reg = get_property(node, "reg", NULL); + reg = of_get_property(node, "reg", NULL); if (reg) { addr = of_translate_address(node, reg); if (addr != OF_BAD_ADDR) { diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index d8ef2e100505..f022862de344 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -637,7 +637,7 @@ make_one_node_map(struct device_node* node, u8 pci_bus) if (pci_bus >= pci_bus_count) return; - bus_range = get_property(node, "bus-range", &len); + bus_range = of_get_property(node, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { printk(KERN_WARNING "Can't get bus-range for %s, " "assuming it starts at 0\n", node->full_name); @@ -649,17 +649,20 @@ make_one_node_map(struct device_node* node, u8 pci_bus) struct pci_dev* dev; const unsigned int *class_code, *reg; - class_code = get_property(node, "class-code", NULL); + class_code = of_get_property(node, "class-code", NULL); if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI && (*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS)) continue; - reg = get_property(node, "reg", NULL); + reg = of_get_property(node, "reg", NULL); if (!reg) continue; - dev = pci_find_slot(pci_bus, ((reg[0] >> 8) & 0xff)); - if (!dev || !dev->subordinate) + dev = pci_get_bus_and_slot(pci_bus, ((reg[0] >> 8) & 0xff)); + if (!dev || !dev->subordinate) { + pci_dev_put(dev); continue; + } make_one_node_map(node, dev->subordinate->number); + pci_dev_put(dev); } } @@ -669,6 +672,7 @@ pcibios_make_OF_bus_map(void) int i; struct pci_controller* hose; struct property *map_prop; + struct device_node *dn; pci_to_OF_bus_map = kmalloc(pci_bus_count, GFP_KERNEL); if (!pci_to_OF_bus_map) { @@ -690,12 +694,13 @@ pcibios_make_OF_bus_map(void) continue; make_one_node_map(node, hose->first_busno); } - map_prop = of_find_property(find_path_device("/"), - "pci-OF-bus-map", NULL); + dn = of_find_node_by_path("/"); + map_prop = of_find_property(dn, "pci-OF-bus-map", NULL); if (map_prop) { BUG_ON(pci_bus_count > map_prop->length); memcpy(map_prop->value, pci_to_OF_bus_map, pci_bus_count); } + of_node_put(dn); #ifdef DEBUG printk("PCI->OF bus map:\n"); for (i=0; i<pci_bus_count; i++) { @@ -724,7 +729,7 @@ scan_OF_pci_childs(struct device_node* node, pci_OF_scan_iterator filter, void* * a fake root for all functions of a multi-function device, * we go down them as well. */ - class_code = get_property(node, "class-code", NULL); + class_code = of_get_property(node, "class-code", NULL); if ((!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI && (*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS)) && strcmp(node->name, "multifunc-device")) @@ -744,7 +749,7 @@ static struct device_node *scan_OF_for_pci_dev(struct device_node *parent, unsigned int psize; while ((np = of_get_next_child(parent, np)) != NULL) { - reg = get_property(np, "reg", &psize); + reg = of_get_property(np, "reg", &psize); if (reg == NULL || psize < 4) continue; if (((reg[0] >> 8) & 0xff) == devfn) @@ -859,7 +864,7 @@ pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn) if (!scan_OF_pci_childs(((struct device_node*)hose->arch_data)->child, find_OF_pci_device_filter, (void *)node)) return -ENODEV; - reg = get_property(node, "reg", NULL); + reg = of_get_property(node, "reg", NULL); if (!reg) return -ENODEV; *bus = (reg[0] >> 16) & 0xff; @@ -895,14 +900,14 @@ pci_process_bridge_OF_ranges(struct pci_controller *hose, int rlen = 0, orig_rlen; int memno = 0; struct resource *res; - int np, na = prom_n_addr_cells(dev); + int np, na = of_n_addr_cells(dev); np = na + 5; /* First we try to merge ranges to fix a problem with some pmacs * that can have more than 3 ranges, fortunately using contiguous * addresses -- BenH */ - dt_ranges = get_property(dev, "ranges", &rlen); + dt_ranges = of_get_property(dev, "ranges", &rlen); if (!dt_ranges) return; /* Sanity check, though hopefully that never happens */ @@ -1006,14 +1011,19 @@ void __init pci_create_OF_bus_map(void) { struct property* of_prop; - + struct device_node *dn; + of_prop = (struct property*) alloc_bootmem(sizeof(struct property) + 256); - if (of_prop && find_path_device("/")) { + if (!of_prop) + return; + dn = of_find_node_by_path("/"); + if (dn) { memset(of_prop, -1, sizeof(struct property) + 256); of_prop->name = "pci-OF-bus-map"; of_prop->length = 256; - of_prop->value = (unsigned char *)&of_prop[1]; - prom_add_property(find_path_device("/"), of_prop); + of_prop->value = &of_prop[1]; + prom_add_property(dn, of_prop); + of_node_put(dn); } } diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 7e97d71a5f8f..60d7d4baa227 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -61,8 +61,7 @@ void iSeries_pcibios_init(void); LIST_HEAD(hose_list); -struct dma_mapping_ops *pci_dma_ops; -EXPORT_SYMBOL(pci_dma_ops); +static struct dma_mapping_ops *pci_dma_ops; int global_phb_number; /* Global phb counter */ @@ -70,6 +69,17 @@ int global_phb_number; /* Global phb counter */ struct pci_dev *ppc64_isabridge_dev = NULL; EXPORT_SYMBOL_GPL(ppc64_isabridge_dev); +void set_pci_dma_ops(struct dma_mapping_ops *dma_ops) +{ + pci_dma_ops = dma_ops; +} + +struct dma_mapping_ops *get_pci_dma_ops(void) +{ + return pci_dma_ops; +} +EXPORT_SYMBOL(get_pci_dma_ops); + static void fixup_broken_pcnet32(struct pci_dev* dev) { if ((dev->class>>8 == PCI_CLASS_NETWORK_ETHERNET)) { @@ -258,7 +268,7 @@ static u32 get_int_prop(struct device_node *np, const char *name, u32 def) const u32 *prop; int len; - prop = get_property(np, name, &len); + prop = of_get_property(np, name, &len); if (prop && len >= 4) return *prop; return def; @@ -291,7 +301,7 @@ static void pci_parse_of_addrs(struct device_node *node, struct pci_dev *dev) u32 i; int proplen; - addrs = get_property(node, "assigned-addresses", &proplen); + addrs = of_get_property(node, "assigned-addresses", &proplen); if (!addrs) return; DBG(" parse addresses (%d bytes) @ %p\n", proplen, addrs); @@ -333,7 +343,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, dev = kzalloc(sizeof(struct pci_dev), GFP_KERNEL); if (!dev) return NULL; - type = get_property(node, "device_type", NULL); + type = of_get_property(node, "device_type", NULL); if (type == NULL) type = ""; @@ -397,7 +407,7 @@ void __devinit of_scan_bus(struct device_node *node, while ((child = of_get_next_child(node, child)) != NULL) { DBG(" * %s\n", child->full_name); - reg = get_property(child, "reg", ®len); + reg = of_get_property(child, "reg", ®len); if (reg == NULL || reglen < 20) continue; devfn = (reg[0] >> 8) & 0xff; @@ -430,13 +440,13 @@ void __devinit of_scan_pci_bridge(struct device_node *node, DBG("of_scan_pci_bridge(%s)\n", node->full_name); /* parse bus-range property */ - busrange = get_property(node, "bus-range", &len); + 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 = get_property(node, "ranges", &len); + ranges = of_get_property(node, "ranges", &len); if (ranges == NULL) { printk(KERN_DEBUG "Can't get ranges for PCI-PCI bridge %s\n", node->full_name); @@ -900,7 +910,7 @@ static void __devinit pci_process_ISA_OF_ranges(struct device_node *isa_node, unsigned int size; int rlen = 0; - range = get_property(isa_node, "ranges", &rlen); + range = of_get_property(isa_node, "ranges", &rlen); if (range == NULL || (rlen < sizeof(struct isa_range))) { printk(KERN_ERR "no ISA ranges or unexpected isa range size," "mapping 64k\n"); @@ -947,7 +957,7 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose, int rlen = 0; int memno = 0; struct resource *res; - int np, na = prom_n_addr_cells(dev); + int np, na = of_n_addr_cells(dev); unsigned long pci_addr, cpu_phys_addr; np = na + 5; @@ -960,7 +970,7 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose, * (size depending on dev->n_addr_cells) * cells 4+5 or 5+6: the size of the range */ - ranges = get_property(dev, "ranges", &rlen); + ranges = of_get_property(dev, "ranges", &rlen); if (ranges == NULL) return; hose->io_base_phys = 0; diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c index 68df018dae0e..d7d36df9c053 100644 --- a/arch/powerpc/kernel/pci_dn.c +++ b/arch/powerpc/kernel/pci_dn.c @@ -40,7 +40,8 @@ static void * __devinit update_dn_pci_info(struct device_node *dn, void *data) { struct pci_controller *phb = data; - const int *type = get_property(dn, "ibm,pci-config-space-type", NULL); + const int *type = + of_get_property(dn, "ibm,pci-config-space-type", NULL); const u32 *regs; struct pci_dn *pdn; @@ -54,14 +55,14 @@ static void * __devinit update_dn_pci_info(struct device_node *dn, void *data) dn->data = pdn; pdn->node = dn; pdn->phb = phb; - regs = get_property(dn, "reg", NULL); + regs = of_get_property(dn, "reg", NULL); if (regs) { /* First register entry is addr (00BBSS00) */ pdn->busno = (regs[0] >> 16) & 0xff; pdn->devfn = (regs[0] >> 8) & 0xff; } if (firmware_has_feature(FW_FEATURE_ISERIES)) { - const u32 *busp = get_property(dn, "linux,subbus", NULL); + const u32 *busp = of_get_property(dn, "linux,subbus", NULL); if (busp) pdn->bussubno = *busp; } @@ -100,7 +101,7 @@ void *traverse_pci_devices(struct device_node *start, traverse_func pre, u32 class; nextdn = NULL; - classp = get_property(dn, "class-code", NULL); + classp = of_get_property(dn, "class-code", NULL); class = classp ? *classp : 0; if (pre && ((ret = pre(dn, data)) != NULL)) diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index 2f8e9c02c92a..ff252aaead12 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -20,7 +20,6 @@ #include <asm/processor.h> #include <asm/uaccess.h> #include <asm/io.h> -#include <asm/ide.h> #include <asm/atomic.h> #include <asm/checksum.h> #include <asm/pgtable.h> diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index e53b2988d1bf..e509aae2feb3 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -305,9 +305,7 @@ struct task_struct *__switch_to(struct task_struct *prev, set_dabr(new->thread.dabr); __get_cpu_var(current_dabr) = new->thread.dabr; } - - flush_tlb_pending(); -#endif +#endif /* CONFIG_PPC64 */ new_thread = &new->thread; old_thread = ¤t->thread; @@ -402,11 +400,11 @@ static void printbits(unsigned long val, struct regbit *bits) } #ifdef CONFIG_PPC64 -#define REG "%016lX" +#define REG "%016lx" #define REGS_PER_LINE 4 #define LAST_VOLATILE 13 #else -#define REG "%08lX" +#define REG "%08lx" #define REGS_PER_LINE 8 #define LAST_VOLATILE 12 #endif @@ -421,7 +419,7 @@ void show_regs(struct pt_regs * regs) regs, regs->trap, print_tainted(), init_utsname()->release); printk("MSR: "REG" ", regs->msr); printbits(regs->msr, msr_bits); - printk(" CR: %08lX XER: %08lX\n", regs->ccr, regs->xer); + printk(" CR: %08lx XER: %08lx\n", regs->ccr, regs->xer); trap = TRAP(regs); if (trap == 0x300 || trap == 0x600) printk("DAR: "REG", DSISR: "REG"\n", regs->dar, regs->dsisr); @@ -572,7 +570,6 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp, kregs->nip = *((unsigned long *)ret_from_fork); #else kregs->nip = (unsigned long)ret_from_fork; - p->thread.last_syscall = -1; #endif return 0; @@ -823,6 +820,35 @@ out: return error; } +#ifdef CONFIG_IRQSTACKS +static inline int valid_irq_stack(unsigned long sp, struct task_struct *p, + unsigned long nbytes) +{ + unsigned long stack_page; + unsigned long cpu = task_cpu(p); + + /* + * Avoid crashing if the stack has overflowed and corrupted + * task_cpu(p), which is in the thread_info struct. + */ + if (cpu < NR_CPUS && cpu_possible(cpu)) { + stack_page = (unsigned long) hardirq_ctx[cpu]; + if (sp >= stack_page + sizeof(struct thread_struct) + && sp <= stack_page + THREAD_SIZE - nbytes) + return 1; + + stack_page = (unsigned long) softirq_ctx[cpu]; + if (sp >= stack_page + sizeof(struct thread_struct) + && sp <= stack_page + THREAD_SIZE - nbytes) + return 1; + } + return 0; +} + +#else +#define valid_irq_stack(sp, p, nb) 0 +#endif /* CONFIG_IRQSTACKS */ + int validate_sp(unsigned long sp, struct task_struct *p, unsigned long nbytes) { @@ -832,19 +858,7 @@ int validate_sp(unsigned long sp, struct task_struct *p, && sp <= stack_page + THREAD_SIZE - nbytes) return 1; -#ifdef CONFIG_IRQSTACKS - stack_page = (unsigned long) hardirq_ctx[task_cpu(p)]; - if (sp >= stack_page + sizeof(struct thread_struct) - && sp <= stack_page + THREAD_SIZE - nbytes) - return 1; - - stack_page = (unsigned long) softirq_ctx[task_cpu(p)]; - if (sp >= stack_page + sizeof(struct thread_struct) - && sp <= stack_page + THREAD_SIZE - nbytes) - return 1; -#endif - - return 0; + return valid_irq_stack(sp, p, nbytes); } #ifdef CONFIG_PPC64 diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 8d52b23348bd..caef555f2dc0 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -390,18 +390,19 @@ static unsigned long __init unflatten_dt_node(unsigned long mem, if (allnextpp) { pp->name = "name"; pp->length = sz; - pp->value = (unsigned char *)(pp + 1); + pp->value = pp + 1; *prev_pp = pp; prev_pp = &pp->next; memcpy(pp->value, ps, sz - 1); ((char *)pp->value)[sz - 1] = 0; - DBG("fixed up name for %s -> %s\n", pathp, pp->value); + DBG("fixed up name for %s -> %s\n", pathp, + (char *)pp->value); } } if (allnextpp) { *prev_pp = NULL; - np->name = get_property(np, "name", NULL); - np->type = get_property(np, "device_type", NULL); + np->name = of_get_property(np, "name", NULL); + np->type = of_get_property(np, "device_type", NULL); if (!np->name) np->name = "<NULL>"; @@ -719,6 +720,7 @@ static int __init early_init_dt_scan_chosen(unsigned long node, const char *uname, int depth, void *data) { unsigned long *lprop; + u32 *prop; unsigned long l; char *p; @@ -760,6 +762,22 @@ static int __init early_init_dt_scan_chosen(unsigned long node, crashk_res.end = crashk_res.start + *lprop - 1; #endif +#ifdef CONFIG_BLK_DEV_INITRD + DBG("Looking for initrd properties... "); + prop = of_get_flat_dt_prop(node, "linux,initrd-start", &l); + if (prop) { + initrd_start = (unsigned long)__va(of_read_ulong(prop, l/4)); + prop = of_get_flat_dt_prop(node, "linux,initrd-end", &l); + if (prop) { + initrd_end = (unsigned long)__va(of_read_ulong(prop, l/4)); + initrd_below_start_ok = 1; + } else { + initrd_start = 0; + } + } + DBG("initrd_start=0x%lx initrd_end=0x%lx\n", initrd_start, initrd_end); +#endif /* CONFIG_BLK_DEV_INITRD */ + /* Retreive command line */ p = of_get_flat_dt_prop(node, "bootargs", &l); if (p != NULL && l > 0) @@ -926,6 +944,12 @@ static void __init early_reserve_mem(void) self_size = initial_boot_params->totalsize; lmb_reserve(self_base, self_size); +#ifdef CONFIG_BLK_DEV_INITRD + /* then reserve the initrd, if any */ + if (initrd_start && (initrd_end > initrd_start)) + lmb_reserve(__pa(initrd_start), initrd_end - initrd_start); +#endif /* CONFIG_BLK_DEV_INITRD */ + #ifdef CONFIG_PPC32 /* * Handle the case where we might be booting from an old kexec @@ -954,9 +978,6 @@ static void __init early_reserve_mem(void) size = *(reserve_map++); if (size == 0) break; - /* skip if the reservation is for the blob */ - if (base == self_base && size == self_size) - continue; DBG("reserving: %llx -> %llx\n", base, size); lmb_reserve(base, size); } @@ -1021,102 +1042,46 @@ void __init early_init_devtree(void *params) #undef printk -int -prom_n_addr_cells(struct device_node* np) +int of_n_addr_cells(struct device_node* np) { const int *ip; do { if (np->parent) np = np->parent; - ip = get_property(np, "#address-cells", NULL); + ip = of_get_property(np, "#address-cells", NULL); if (ip != NULL) return *ip; } while (np->parent); /* No #address-cells property for the root node, default to 1 */ return 1; } -EXPORT_SYMBOL(prom_n_addr_cells); +EXPORT_SYMBOL(of_n_addr_cells); -int -prom_n_size_cells(struct device_node* np) +int of_n_size_cells(struct device_node* np) { const int* ip; do { if (np->parent) np = np->parent; - ip = get_property(np, "#size-cells", NULL); + ip = of_get_property(np, "#size-cells", NULL); if (ip != NULL) return *ip; } while (np->parent); /* No #size-cells property for the root node, default to 1 */ return 1; } -EXPORT_SYMBOL(prom_n_size_cells); - -/** - * Construct and return a list of the device_nodes with a given name. - */ -struct device_node *find_devices(const char *name) -{ - struct device_node *head, **prevp, *np; - - prevp = &head; - for (np = allnodes; np != 0; np = np->allnext) { - if (np->name != 0 && strcasecmp(np->name, name) == 0) { - *prevp = np; - prevp = &np->next; - } - } - *prevp = NULL; - return head; -} -EXPORT_SYMBOL(find_devices); - -/** - * Construct and return a list of the device_nodes with a given type. - */ -struct device_node *find_type_devices(const char *type) -{ - struct device_node *head, **prevp, *np; - - prevp = &head; - for (np = allnodes; np != 0; np = np->allnext) { - if (np->type != 0 && strcasecmp(np->type, type) == 0) { - *prevp = np; - prevp = &np->next; - } - } - *prevp = NULL; - return head; -} -EXPORT_SYMBOL(find_type_devices); - -/** - * Returns all nodes linked together - */ -struct device_node *find_all_nodes(void) -{ - struct device_node *head, **prevp, *np; - - prevp = &head; - for (np = allnodes; np != 0; np = np->allnext) { - *prevp = np; - prevp = &np->next; - } - *prevp = NULL; - return head; -} -EXPORT_SYMBOL(find_all_nodes); +EXPORT_SYMBOL(of_n_size_cells); /** Checks if the given "compat" string matches one of the strings in * the device's "compatible" property */ -int device_is_compatible(const struct device_node *device, const char *compat) +int of_device_is_compatible(const struct device_node *device, + const char *compat) { const char* cp; int cplen, l; - cp = get_property(device, "compatible", &cplen); + cp = of_get_property(device, "compatible", &cplen); if (cp == NULL) return 0; while (cplen > 0) { @@ -1129,7 +1094,7 @@ int device_is_compatible(const struct device_node *device, const char *compat) return 0; } -EXPORT_SYMBOL(device_is_compatible); +EXPORT_SYMBOL(of_device_is_compatible); /** @@ -1143,51 +1108,13 @@ int machine_is_compatible(const char *compat) root = of_find_node_by_path("/"); if (root) { - rc = device_is_compatible(root, compat); + rc = of_device_is_compatible(root, compat); of_node_put(root); } return rc; } EXPORT_SYMBOL(machine_is_compatible); -/** - * Construct and return a list of the device_nodes with a given type - * and compatible property. - */ -struct device_node *find_compatible_devices(const char *type, - const char *compat) -{ - struct device_node *head, **prevp, *np; - - prevp = &head; - for (np = allnodes; np != 0; np = np->allnext) { - if (type != NULL - && !(np->type != 0 && strcasecmp(np->type, type) == 0)) - continue; - if (device_is_compatible(np, compat)) { - *prevp = np; - prevp = &np->next; - } - } - *prevp = NULL; - return head; -} -EXPORT_SYMBOL(find_compatible_devices); - -/** - * Find the device_node with a given full_name. - */ -struct device_node *find_path_device(const char *path) -{ - struct device_node *np; - - for (np = allnodes; np != 0; np = np->allnext) - if (np->full_name != 0 && strcasecmp(np->full_name, path) == 0) - return np; - return NULL; -} -EXPORT_SYMBOL(find_path_device); - /******* * * New implementation of the OF "find" APIs, return a refcounted @@ -1280,7 +1207,7 @@ struct device_node *of_find_compatible_node(struct device_node *from, if (type != NULL && !(np->type != 0 && strcasecmp(np->type, type) == 0)) continue; - if (device_is_compatible(np, compatible) && of_node_get(np)) + if (of_device_is_compatible(np, compatible) && of_node_get(np)) break; } of_node_put(from); @@ -1527,8 +1454,8 @@ static int of_finish_dynamic_node(struct device_node *node) int err = 0; const phandle *ibm_phandle; - node->name = get_property(node, "name", NULL); - node->type = get_property(node, "device_type", NULL); + node->name = of_get_property(node, "name", NULL); + node->type = of_get_property(node, "device_type", NULL); if (!parent) { err = -ENODEV; @@ -1542,7 +1469,7 @@ static int of_finish_dynamic_node(struct device_node *node) return -ENODEV; /* fix up new node's linux_phandle field */ - if ((ibm_phandle = get_property(node, "ibm,phandle", NULL))) + if ((ibm_phandle = of_get_property(node, "ibm,phandle", NULL))) node->linux_phandle = *ibm_phandle; out: @@ -1605,13 +1532,13 @@ EXPORT_SYMBOL(of_find_property); * Find a property with a given name for a given node * and return the value. */ -const void *get_property(const struct device_node *np, const char *name, +const void *of_get_property(const struct device_node *np, const char *name, int *lenp) { struct property *pp = of_find_property(np,name,lenp); return pp ? pp->value : NULL; } -EXPORT_SYMBOL(get_property); +EXPORT_SYMBOL(of_get_property); /* * Add a property to a node @@ -1742,10 +1669,10 @@ struct device_node *of_get_cpu_node(int cpu, unsigned int *thread) /* Check for ibm,ppc-interrupt-server#s. If it doesn't exist * fallback to "reg" property and assume no threads */ - intserv = get_property(np, "ibm,ppc-interrupt-server#s", + intserv = of_get_property(np, "ibm,ppc-interrupt-server#s", &plen); if (intserv == NULL) { - const u32 *reg = get_property(np, "reg", NULL); + const u32 *reg = of_get_property(np, "reg", NULL); if (reg == NULL) continue; if (*reg == hardid) { diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 4fb5938ce6d3..e27d9d1b6e67 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -2035,39 +2035,50 @@ static void __init fixup_device_tree_maple(void) #endif #ifdef CONFIG_PPC_CHRP -/* Pegasos and BriQ lacks the "ranges" property in the isa node */ +/* + * Pegasos and BriQ lacks the "ranges" property in the isa node + * Pegasos needs decimal IRQ 14/15, not hexadecimal + */ static void __init fixup_device_tree_chrp(void) { - phandle isa; - u32 isa_ranges[6]; + phandle ph; + u32 prop[6]; u32 rloc = 0x01006000; /* IO space; PCI device = 12 */ char *name; int rc; name = "/pci@80000000/isa@c"; - isa = call_prom("finddevice", 1, 1, ADDR(name)); - if (!PHANDLE_VALID(isa)) { + ph = call_prom("finddevice", 1, 1, ADDR(name)); + if (!PHANDLE_VALID(ph)) { name = "/pci@ff500000/isa@6"; - isa = call_prom("finddevice", 1, 1, ADDR(name)); + ph = call_prom("finddevice", 1, 1, ADDR(name)); rloc = 0x01003000; /* IO space; PCI device = 6 */ } - if (!PHANDLE_VALID(isa)) - return; - - rc = prom_getproplen(isa, "ranges"); - if (rc != 0 && rc != PROM_ERROR) - return; - - prom_printf("Fixing up missing ISA range on Pegasos...\n"); + if (PHANDLE_VALID(ph)) { + rc = prom_getproplen(ph, "ranges"); + if (rc == 0 || rc == PROM_ERROR) { + prom_printf("Fixing up missing ISA range on Pegasos...\n"); + + prop[0] = 0x1; + prop[1] = 0x0; + prop[2] = rloc; + prop[3] = 0x0; + prop[4] = 0x0; + prop[5] = 0x00010000; + prom_setprop(ph, name, "ranges", prop, sizeof(prop)); + } + } - isa_ranges[0] = 0x1; - isa_ranges[1] = 0x0; - isa_ranges[2] = rloc; - isa_ranges[3] = 0x0; - isa_ranges[4] = 0x0; - isa_ranges[5] = 0x00010000; - prom_setprop(isa, name, "ranges", - isa_ranges, sizeof(isa_ranges)); + name = "/pci@80000000/ide@C,1"; + ph = call_prom("finddevice", 1, 1, ADDR(name)); + if (PHANDLE_VALID(ph)) { + prom_printf("Fixing up IDE interrupt on Pegasos...\n"); + prop[0] = 14; + prop[1] = 0x0; + prop[2] = 15; + prop[3] = 0x0; + prom_setprop(ph, name, "interrupts", prop, 4*sizeof(u32)); + } } #else #define fixup_device_tree_chrp() diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c index 91b443c9a488..aa40a5307294 100644 --- a/arch/powerpc/kernel/prom_parse.c +++ b/arch/powerpc/kernel/prom_parse.c @@ -68,9 +68,9 @@ static void of_bus_default_count_cells(struct device_node *dev, int *addrc, int *sizec) { if (addrc) - *addrc = prom_n_addr_cells(dev); + *addrc = of_n_addr_cells(dev); if (sizec) - *sizec = prom_n_size_cells(dev); + *sizec = of_n_size_cells(dev); } static u64 of_bus_default_map(u32 *addr, const u32 *range, @@ -196,7 +196,7 @@ const u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size, return NULL; /* Get "reg" or "assigned-addresses" property */ - prop = get_property(dev, bus->addresses, &psize); + prop = of_get_property(dev, bus->addresses, &psize); if (prop == NULL) return NULL; psize /= 4; @@ -438,7 +438,7 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus, * to translate addresses that aren't supposed to be translated in * the first place. --BenH. */ - ranges = get_property(parent, "ranges", &rlen); + ranges = of_get_property(parent, "ranges", &rlen); if (ranges == NULL || rlen == 0) { offset = of_read_number(addr, na); memset(addr, 0, pna * 4); @@ -578,7 +578,7 @@ const u32 *of_get_address(struct device_node *dev, int index, u64 *size, return NULL; /* Get "reg" or "assigned-addresses" property */ - prop = get_property(dev, bus->addresses, &psize); + prop = of_get_property(dev, bus->addresses, &psize); if (prop == NULL) return NULL; psize /= 4; @@ -650,17 +650,17 @@ void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop, /* busno is always one cell */ *busno = *(dma_window++); - prop = get_property(dn, "ibm,#dma-address-cells", NULL); + prop = of_get_property(dn, "ibm,#dma-address-cells", NULL); if (!prop) - prop = get_property(dn, "#address-cells", NULL); + prop = of_get_property(dn, "#address-cells", NULL); - cells = prop ? *(u32 *)prop : prom_n_addr_cells(dn); + cells = prop ? *(u32 *)prop : of_n_addr_cells(dn); *phys = of_read_number(dma_window, cells); dma_window += cells; - prop = get_property(dn, "ibm,#dma-size-cells", NULL); - cells = prop ? *(u32 *)prop : prom_n_size_cells(dn); + prop = of_get_property(dn, "ibm,#dma-size-cells", NULL); + cells = prop ? *(u32 *)prop : of_n_size_cells(dn); *size = of_read_number(dma_window, cells); } @@ -680,7 +680,7 @@ static struct device_node *of_irq_find_parent(struct device_node *child) return NULL; do { - parp = get_property(child, "interrupt-parent", NULL); + parp = of_get_property(child, "interrupt-parent", NULL); if (parp == NULL) p = of_get_parent(child); else { @@ -691,7 +691,7 @@ static struct device_node *of_irq_find_parent(struct device_node *child) } of_node_put(child); child = p; - } while (p && get_property(p, "#interrupt-cells", NULL) == NULL); + } while (p && of_get_property(p, "#interrupt-cells", NULL) == NULL); return p; } @@ -716,7 +716,7 @@ void of_irq_map_init(unsigned int flags) struct device_node *np; for(np = NULL; (np = of_find_all_nodes(np)) != NULL;) { - if (get_property(np, "interrupt-controller", NULL) + if (of_get_property(np, "interrupt-controller", NULL) == NULL) continue; /* Skip /chosen/interrupt-controller */ @@ -755,7 +755,7 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize, * is none, we are nice and just walk up the tree */ do { - tmp = get_property(ipar, "#interrupt-cells", NULL); + tmp = of_get_property(ipar, "#interrupt-cells", NULL); if (tmp != NULL) { intsize = *tmp; break; @@ -779,7 +779,7 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize, */ old = of_node_get(ipar); do { - tmp = get_property(old, "#address-cells", NULL); + tmp = of_get_property(old, "#address-cells", NULL); tnode = of_get_parent(old); of_node_put(old); old = tnode; @@ -795,7 +795,8 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize, /* Now check if cursor is an interrupt-controller and if it is * then we are done */ - if (get_property(ipar, "interrupt-controller", NULL) != NULL) { + if (of_get_property(ipar, "interrupt-controller", NULL) != + NULL) { DBG(" -> got it !\n"); memcpy(out_irq->specifier, intspec, intsize * sizeof(u32)); @@ -806,7 +807,7 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize, } /* Now look for an interrupt-map */ - imap = get_property(ipar, "interrupt-map", &imaplen); + imap = of_get_property(ipar, "interrupt-map", &imaplen); /* No interrupt map, check for an interrupt parent */ if (imap == NULL) { DBG(" -> no map, getting parent\n"); @@ -816,7 +817,7 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize, imaplen /= sizeof(u32); /* Look for a mask */ - imask = get_property(ipar, "interrupt-map-mask", NULL); + imask = of_get_property(ipar, "interrupt-map-mask", NULL); /* If we were passed no "reg" property and we attempt to parse * an interrupt-map, then #address-cells must be 0. @@ -863,15 +864,13 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize, /* Get #interrupt-cells and #address-cells of new * parent */ - tmp = get_property(newpar, "#interrupt-cells", - NULL); + tmp = of_get_property(newpar, "#interrupt-cells", NULL); if (tmp == NULL) { DBG(" -> parent lacks #interrupt-cells !\n"); goto fail; } newintsize = *tmp; - tmp = get_property(newpar, "#address-cells", - NULL); + tmp = of_get_property(newpar, "#address-cells", NULL); newaddrsize = (tmp == NULL) ? 0 : *tmp; DBG(" -> newintsize=%d, newaddrsize=%d\n", @@ -928,7 +927,7 @@ static int of_irq_map_oldworld(struct device_node *device, int index, * everything together on these) */ while (device) { - ints = get_property(device, "AAPL,interrupts", &intlen); + ints = of_get_property(device, "AAPL,interrupts", &intlen); if (ints != NULL) break; device = device->parent; @@ -970,13 +969,13 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq return of_irq_map_oldworld(device, index, out_irq); /* Get the interrupts property */ - intspec = get_property(device, "interrupts", &intlen); + intspec = of_get_property(device, "interrupts", &intlen); if (intspec == NULL) return -EINVAL; intlen /= sizeof(u32); /* Get the reg property (if any) */ - addr = get_property(device, "reg", NULL); + addr = of_get_property(device, "reg", NULL); /* Look for the interrupt parent. */ p = of_irq_find_parent(device); @@ -984,7 +983,7 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq return -EINVAL; /* Get size of interrupt specifier */ - tmp = get_property(p, "#interrupt-cells", NULL); + tmp = of_get_property(p, "#interrupt-cells", NULL); if (tmp == NULL) { of_node_put(p); return -EINVAL; diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c index 6cbf2ae5d7aa..190b7ed1dbfb 100644 --- a/arch/powerpc/kernel/rtas-proc.c +++ b/arch/powerpc/kernel/rtas-proc.c @@ -450,7 +450,7 @@ static int ppc_rtas_sensors_show(struct seq_file *m, void *v) int llen, offs; sprintf (rstr, SENSOR_PREFIX"%04d", p->token); - loc = get_property(rtas_node, rstr, &llen); + loc = of_get_property(rtas_node, rstr, &llen); /* A sensor may have multiple instances */ for (j = 0, offs = 0; j <= p->quant; j++) { @@ -477,7 +477,7 @@ static int ppc_rtas_find_all_sensors(void) const unsigned int *utmp; int len, i; - utmp = get_property(rtas_node, "rtas-sensors", &len); + utmp = of_get_property(rtas_node, "rtas-sensors", &len); if (utmp == NULL) { printk (KERN_ERR "error: could not get rtas-sensors\n"); return 1; diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 9d0735a54564..214780798289 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -192,18 +192,19 @@ void rtas_progress(char *s, unsigned short hex) if (display_width == 0) { display_width = 0x10; - if ((root = find_path_device("/rtas"))) { - if ((p = get_property(root, + if ((root = of_find_node_by_path("/rtas"))) { + if ((p = of_get_property(root, "ibm,display-line-length", NULL))) display_width = *p; - if ((p = get_property(root, + if ((p = of_get_property(root, "ibm,form-feed", NULL))) form_feed = *p; - if ((p = get_property(root, + if ((p = of_get_property(root, "ibm,display-number-of-lines", NULL))) display_lines = *p; - row_width = get_property(root, + row_width = of_get_property(root, "ibm,display-truncation-length", NULL); + of_node_put(root); } display_character = rtas_token("display-character"); set_indicator = rtas_token("set-indicator"); @@ -298,7 +299,7 @@ int rtas_token(const char *service) const int *tokp; if (rtas.dev == NULL) return RTAS_UNKNOWN_SERVICE; - tokp = get_property(rtas.dev, service, NULL); + tokp = of_get_property(rtas.dev, service, NULL); return tokp ? *tokp : RTAS_UNKNOWN_SERVICE; } EXPORT_SYMBOL(rtas_token); @@ -832,12 +833,12 @@ void __init rtas_initialize(void) if (rtas.dev) { const u32 *basep, *entryp, *sizep; - basep = get_property(rtas.dev, "linux,rtas-base", NULL); - sizep = get_property(rtas.dev, "rtas-size", NULL); + basep = of_get_property(rtas.dev, "linux,rtas-base", NULL); + sizep = of_get_property(rtas.dev, "rtas-size", NULL); if (basep != NULL && sizep != NULL) { rtas.base = *basep; rtas.size = *sizep; - entryp = get_property(rtas.dev, + entryp = of_get_property(rtas.dev, "linux,rtas-entry", NULL); if (entryp == NULL) /* Ugh */ rtas.entry = rtas.base; diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c index ace9f4c86e67..f2286822be09 100644 --- a/arch/powerpc/kernel/rtas_pci.c +++ b/arch/powerpc/kernel/rtas_pci.c @@ -60,7 +60,7 @@ static int of_device_available(struct device_node * dn) { const char *status; - status = get_property(dn, "status", NULL); + status = of_get_property(dn, "status", NULL); if (!status) return 1; @@ -177,7 +177,7 @@ struct pci_ops rtas_pci_ops = { int is_python(struct device_node *dev) { - const char *model = get_property(dev, "model", NULL); + const char *model = of_get_property(dev, "model", NULL); if (model && strstr(model, "Python")) return 1; @@ -247,7 +247,7 @@ static int phb_set_bus_ranges(struct device_node *dev, const int *bus_range; unsigned int len; - bus_range = get_property(dev, "bus-range", &len); + bus_range = of_get_property(dev, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { return 1; } @@ -274,7 +274,7 @@ int __devinit rtas_setup_phb(struct pci_controller *phb) return 0; } -unsigned long __init find_and_init_phbs(void) +void __init find_and_init_phbs(void) { struct device_node *node; struct pci_controller *phb; @@ -309,18 +309,16 @@ unsigned long __init find_and_init_phbs(void) if (of_chosen) { const int *prop; - prop = get_property(of_chosen, + prop = of_get_property(of_chosen, "linux,pci-probe-only", NULL); if (prop) pci_probe_only = *prop; - prop = get_property(of_chosen, + prop = of_get_property(of_chosen, "linux,pci-assign-all-buses", NULL); if (prop) pci_assign_all_buses = *prop; } - - return 0; } /* RPA-specific bits for removing PHBs */ diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 89cfaf49d3de..370803722e47 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -21,7 +21,6 @@ #include <linux/delay.h> #include <linux/initrd.h> #include <linux/platform_device.h> -#include <linux/ide.h> #include <linux/seq_file.h> #include <linux/ioport.h> #include <linux/console.h> @@ -304,26 +303,8 @@ struct seq_operations cpuinfo_op = { void __init check_for_initrd(void) { #ifdef CONFIG_BLK_DEV_INITRD - const unsigned int *prop; - int len; - - DBG(" -> check_for_initrd()\n"); - - if (of_chosen) { - prop = get_property(of_chosen, "linux,initrd-start", &len); - if (prop != NULL) { - initrd_start = (unsigned long) - __va(of_read_ulong(prop, len / 4)); - prop = get_property(of_chosen, - "linux,initrd-end", &len); - if (prop != NULL) { - initrd_end = (unsigned long) - __va(of_read_ulong(prop, len / 4)); - initrd_below_start_ok = 1; - } else - initrd_start = 0; - } - } + DBG(" -> check_for_initrd() initrd_start=0x%lx initrd_end=0x%lx\n", + initrd_start, initrd_end); /* If we were passed an initrd, set the ROOT_DEV properly if the values * look sensible. If not, clear initrd reference. @@ -371,11 +352,12 @@ void __init smp_setup_cpu_maps(void) const int *intserv; int j, len = sizeof(u32), nthreads = 1; - intserv = get_property(dn, "ibm,ppc-interrupt-server#s", &len); + intserv = of_get_property(dn, "ibm,ppc-interrupt-server#s", + &len); if (intserv) nthreads = len / sizeof(int); else { - intserv = get_property(dn, "reg", NULL); + intserv = of_get_property(dn, "reg", NULL); if (!intserv) intserv = &cpu; /* assume logical == phys */ } @@ -398,10 +380,10 @@ void __init smp_setup_cpu_maps(void) int num_addr_cell, num_size_cell, maxcpus; const unsigned int *ireg; - num_addr_cell = prom_n_addr_cells(dn); - num_size_cell = prom_n_size_cells(dn); + num_addr_cell = of_n_addr_cells(dn); + num_size_cell = of_n_size_cells(dn); - ireg = get_property(dn, "ibm,lrdr-capacity", NULL); + ireg = of_get_property(dn, "ibm,lrdr-capacity", NULL); if (!ireg) goto out; @@ -496,11 +478,39 @@ void probe_machine(void) printk(KERN_INFO "Using %s machine description\n", ppc_md.name); } +/* Match a class of boards, not a specific device configuration. */ int check_legacy_ioport(unsigned long base_port) { - if (ppc_md.check_legacy_ioport == NULL) - return 0; - return ppc_md.check_legacy_ioport(base_port); + struct device_node *parent, *np = NULL; + int ret = -ENODEV; + + switch(base_port) { + case I8042_DATA_REG: + np = of_find_node_by_type(NULL, "8042"); + break; + case FDC_BASE: /* FDC1 */ + np = of_find_node_by_type(NULL, "fdc"); + break; +#ifdef CONFIG_PPC_PREP + case _PIDXR: + case _PNPWRP: + case PNPBIOS_BASE: + /* implement me */ +#endif + default: + /* ipmi is supposed to fail here */ + break; + } + if (!np) + return ret; + parent = of_get_parent(np); + if (parent) { + if (strcmp(parent->type, "isa") == 0) + ret = 0; + of_node_put(parent); + } + of_node_put(np); + return ret; } EXPORT_SYMBOL(check_legacy_ioport); diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index 44a6a3c47feb..35f8f443c14f 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -92,7 +92,8 @@ unsigned long __init early_init(unsigned long dt_ptr) /* First zero the BSS -- use memset_io, some platforms don't have * caches on yet */ - memset_io((void __iomem *)PTRRELOC(&__bss_start), 0, _end - __bss_start); + memset_io((void __iomem *)PTRRELOC(&__bss_start), 0, + __bss_stop - __bss_start); /* * Identify the CPU type and fix up code sections @@ -195,18 +196,22 @@ EXPORT_SYMBOL(nvram_sync); #endif /* CONFIG_NVRAM */ -static struct cpu cpu_devices[NR_CPUS]; +static DEFINE_PER_CPU(struct cpu, cpu_devices); int __init ppc_init(void) { - int i; + int cpu; /* clear the progress line */ - if ( ppc_md.progress ) ppc_md.progress(" ", 0xffff); + if (ppc_md.progress) + ppc_md.progress(" ", 0xffff); /* register CPU devices */ - for_each_possible_cpu(i) - register_cpu(&cpu_devices[i], i); + for_each_possible_cpu(cpu) { + struct cpu *c = &per_cpu(cpu_devices, cpu); + c->hotpluggable = 1; + register_cpu(c, cpu); + } /* call platform init */ if (ppc_md.init != NULL) { diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 3733de30e84d..22083ce3cc30 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -20,7 +20,6 @@ #include <linux/reboot.h> #include <linux/delay.h> #include <linux/initrd.h> -#include <linux/ide.h> #include <linux/seq_file.h> #include <linux/ioport.h> #include <linux/console.h> @@ -110,7 +109,7 @@ static void check_smt_enabled(void) dn = of_find_node_by_path("/options"); if (dn) { - smt_option = get_property(dn, "ibm,smt-enabled", NULL); + smt_option = of_get_property(dn, "ibm,smt-enabled", NULL); if (smt_option) { if (!strcmp(smt_option, "on")) @@ -305,10 +304,10 @@ static void __init initialize_cache_info(void) size = 0; lsize = cur_cpu_spec->dcache_bsize; - sizep = get_property(np, "d-cache-size", NULL); + sizep = of_get_property(np, "d-cache-size", NULL); if (sizep != NULL) size = *sizep; - lsizep = get_property(np, dc, NULL); + lsizep = of_get_property(np, dc, NULL); if (lsizep != NULL) lsize = *lsizep; if (sizep == 0 || lsizep == 0) @@ -322,10 +321,10 @@ static void __init initialize_cache_info(void) size = 0; lsize = cur_cpu_spec->icache_bsize; - sizep = get_property(np, "i-cache-size", NULL); + sizep = of_get_property(np, "i-cache-size", NULL); if (sizep != NULL) size = *sizep; - lsizep = get_property(np, ic, NULL); + lsizep = of_get_property(np, ic, NULL); if (lsizep != NULL) lsize = *lsizep; if (sizep == 0 || lsizep == 0) diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 924d692bc8f9..d8e503b2e1af 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -428,10 +428,6 @@ void generic_mach_cpu_die(void) smp_wmb(); while (__get_cpu_var(cpu_state) != CPU_UP_PREPARE) cpu_relax(); - -#ifdef CONFIG_PPC64 - flush_tlb_pending(); -#endif cpu_set(cpu, cpu_online_map); local_irq_enable(); } diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c index 673e8d9df7f5..047246ad4f65 100644 --- a/arch/powerpc/kernel/sys_ppc32.c +++ b/arch/powerpc/kernel/sys_ppc32.c @@ -53,10 +53,6 @@ #include <asm/ppc-pci.h> #include <asm/syscalls.h> -/* readdir & getdents */ -#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de))) -#define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1)) - struct old_linux_dirent32 { u32 d_ino; u32 d_offset; diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index d57818aea081..933e214c33e8 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -66,16 +66,17 @@ static int __init smt_setup(void) if (!cpu_has_feature(CPU_FTR_SMT)) return -ENODEV; - options = find_path_device("/options"); + options = of_find_node_by_path("/options"); if (!options) return -ENODEV; - val = get_property(options, "ibm,smt-snooze-delay", NULL); + val = of_get_property(options, "ibm,smt-snooze-delay", NULL); if (!smt_snooze_cmdline && val) { for_each_possible_cpu(cpu) per_cpu(smt_snooze_delay, cpu) = *val; } + of_node_put(options); return 0; } __initcall(smt_setup); @@ -189,12 +190,12 @@ SYSFS_PMCSETUP(purr, SPRN_PURR); SYSFS_PMCSETUP(spurr, SPRN_SPURR); SYSFS_PMCSETUP(dscr, SPRN_DSCR); -SYSFS_PMCSETUP(pa6t_pmc0, PA6T_SPRN_PMC0); -SYSFS_PMCSETUP(pa6t_pmc1, PA6T_SPRN_PMC1); -SYSFS_PMCSETUP(pa6t_pmc2, PA6T_SPRN_PMC2); -SYSFS_PMCSETUP(pa6t_pmc3, PA6T_SPRN_PMC3); -SYSFS_PMCSETUP(pa6t_pmc4, PA6T_SPRN_PMC4); -SYSFS_PMCSETUP(pa6t_pmc5, PA6T_SPRN_PMC5); +SYSFS_PMCSETUP(pa6t_pmc0, SPRN_PA6T_PMC0); +SYSFS_PMCSETUP(pa6t_pmc1, SPRN_PA6T_PMC1); +SYSFS_PMCSETUP(pa6t_pmc2, SPRN_PA6T_PMC2); +SYSFS_PMCSETUP(pa6t_pmc3, SPRN_PA6T_PMC3); +SYSFS_PMCSETUP(pa6t_pmc4, SPRN_PA6T_PMC4); +SYSFS_PMCSETUP(pa6t_pmc5, SPRN_PA6T_PMC5); static SYSDEV_ATTR(mmcra, 0600, show_mmcra, store_mmcra); diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index f6f0c6b07c4c..7cedef8f5f70 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -834,7 +834,7 @@ static int __init get_freq(char *name, int cells, unsigned long *val) cpu = of_find_node_by_type(NULL, "cpu"); if (cpu) { - fp = get_property(cpu, name, NULL); + fp = of_get_property(cpu, name, NULL); if (fp) { found = 1; *val = of_read_ulong(fp, cells); diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 17724fb2067f..f7862224fe85 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -90,21 +90,11 @@ EXPORT_SYMBOL(unregister_die_notifier); * Trap & Exception support */ -static DEFINE_SPINLOCK(die_lock); - -int die(const char *str, struct pt_regs *regs, long err) -{ - static int die_counter; - - if (debugger(regs)) - return 1; - - console_verbose(); - spin_lock_irq(&die_lock); - bust_spinlocks(1); #ifdef CONFIG_PMAC_BACKLIGHT +static void pmac_backlight_unblank(void) +{ mutex_lock(&pmac_backlight_mutex); - if (machine_is(powermac) && pmac_backlight) { + if (pmac_backlight) { struct backlight_properties *props; props = &pmac_backlight->props; @@ -113,26 +103,67 @@ int die(const char *str, struct pt_regs *regs, long err) backlight_update_status(pmac_backlight); } mutex_unlock(&pmac_backlight_mutex); +} +#else +static inline void pmac_backlight_unblank(void) { } #endif - printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter); + +int die(const char *str, struct pt_regs *regs, long err) +{ + static struct { + spinlock_t lock; + u32 lock_owner; + int lock_owner_depth; + } die = { + .lock = __SPIN_LOCK_UNLOCKED(die.lock), + .lock_owner = -1, + .lock_owner_depth = 0 + }; + static int die_counter; + unsigned long flags; + + if (debugger(regs)) + return 1; + + oops_enter(); + + if (die.lock_owner != raw_smp_processor_id()) { + console_verbose(); + spin_lock_irqsave(&die.lock, flags); + die.lock_owner = smp_processor_id(); + die.lock_owner_depth = 0; + bust_spinlocks(1); + if (machine_is(powermac)) + pmac_backlight_unblank(); + } else { + local_save_flags(flags); + } + + if (++die.lock_owner_depth < 3) { + printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter); #ifdef CONFIG_PREEMPT - printk("PREEMPT "); + printk("PREEMPT "); #endif #ifdef CONFIG_SMP - printk("SMP NR_CPUS=%d ", NR_CPUS); + printk("SMP NR_CPUS=%d ", NR_CPUS); #endif #ifdef CONFIG_DEBUG_PAGEALLOC - printk("DEBUG_PAGEALLOC "); + printk("DEBUG_PAGEALLOC "); #endif #ifdef CONFIG_NUMA - printk("NUMA "); + printk("NUMA "); #endif - printk("%s\n", ppc_md.name ? "" : ppc_md.name); + printk("%s\n", ppc_md.name ? ppc_md.name : ""); + + print_modules(); + show_regs(regs); + } else { + printk("Recursive die() failure, output suppressed\n"); + } - print_modules(); - show_regs(regs); bust_spinlocks(0); - spin_unlock_irq(&die_lock); + die.lock_owner = -1; + spin_unlock_irqrestore(&die.lock, flags); if (kexec_should_crash(current) || kexec_sr_activated(smp_processor_id())) @@ -145,6 +176,7 @@ int die(const char *str, struct pt_regs *regs, long err) if (panic_on_oops) panic("Fatal exception"); + oops_exit(); do_exit(err); return 0; diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index 2968ffeafdb6..9eaefac5053f 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -81,7 +81,7 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev) struct iommu_table *tbl; unsigned long offset, size; - dma_window = get_property(dev->dev.archdata.of_node, + dma_window = of_get_property(dev->dev.archdata.of_node, "ibm,my-dma-window", NULL); if (!dma_window) return NULL; @@ -226,7 +226,7 @@ struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node) return NULL; } - unit_address = get_property(of_node, "reg", NULL); + unit_address = of_get_property(of_node, "reg", NULL); if (unit_address == NULL) { printk(KERN_WARNING "%s: node %s missing 'reg'\n", __FUNCTION__, @@ -246,7 +246,7 @@ struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node) viodev->type = of_node->type; viodev->unit_address = *unit_address; if (firmware_has_feature(FW_FEATURE_ISERIES)) { - unit_address = get_property(of_node, + unit_address = of_get_property(of_node, "linux,unit_address", NULL); if (unit_address != NULL) viodev->unit_address = *unit_address; @@ -308,7 +308,7 @@ static int __init vio_bus_init(void) return err; } - node_vroot = find_devices("vdevice"); + node_vroot = of_find_node_by_name(NULL, "vdevice"); if (node_vroot) { struct device_node *of_node; @@ -322,6 +322,7 @@ static int __init vio_bus_init(void) __FUNCTION__, of_node); vio_register_device_node(of_node); } + of_node_put(node_vroot); } return 0; @@ -377,7 +378,7 @@ static int vio_hotplug(struct device *dev, char **envp, int num_envp, dn = dev->archdata.of_node; if (!dn) return -ENODEV; - cp = get_property(dn, "compatible", &length); + cp = of_get_property(dn, "compatible", &length); if (!cp) return -ENODEV; @@ -406,12 +407,12 @@ struct bus_type vio_bus_type = { * @which: The property/attribute to be extracted. * @length: Pointer to length of returned data size (unused if NULL). * - * Calls prom.c's get_property() to return the value of the + * Calls prom.c's of_get_property() to return the value of the * attribute specified by @which */ const void *vio_get_attribute(struct vio_dev *vdev, char *which, int *length) { - return get_property(vdev->dev.archdata.of_node, which, length); + return of_get_property(vdev->dev.archdata.of_node, which, length); } EXPORT_SYMBOL(vio_get_attribute); @@ -443,7 +444,7 @@ struct vio_dev *vio_find_node(struct device_node *vnode) char kobj_name[BUS_ID_SIZE]; /* construct the kobject name from the device node */ - unit_address = get_property(vnode, "reg", NULL); + unit_address = of_get_property(vnode, "reg", NULL); if (!unit_address) return NULL; snprintf(kobj_name, BUS_ID_SIZE, "%x", *unit_address); |