diff options
Diffstat (limited to 'arch')
267 files changed, 5304 insertions, 2605 deletions
diff --git a/arch/alpha/include/asm/8253pit.h b/arch/alpha/include/asm/8253pit.h index fef5c1450e47..a71c9c1455a7 100644 --- a/arch/alpha/include/asm/8253pit.h +++ b/arch/alpha/include/asm/8253pit.h @@ -1,10 +1,3 @@ /* * 8253/8254 Programmable Interval Timer */ - -#ifndef _8253PIT_H -#define _8253PIT_H - -#define PIT_TICK_RATE 1193180UL - -#endif diff --git a/arch/alpha/include/asm/kmap_types.h b/arch/alpha/include/asm/kmap_types.h index 3e6735a34c57..a8d4ec8ea4b6 100644 --- a/arch/alpha/include/asm/kmap_types.h +++ b/arch/alpha/include/asm/kmap_types.h @@ -3,30 +3,12 @@ /* Dummy header just to define km_type. */ - #ifdef CONFIG_DEBUG_HIGHMEM -# define D(n) __KM_FENCE_##n , -#else -# define D(n) +#define __WITH_KM_FENCE #endif -enum km_type { -D(0) KM_BOUNCE_READ, -D(1) KM_SKB_SUNRPC_DATA, -D(2) KM_SKB_DATA_SOFTIRQ, -D(3) KM_USER0, -D(4) KM_USER1, -D(5) KM_BIO_SRC_IRQ, -D(6) KM_BIO_DST_IRQ, -D(7) KM_PTE0, -D(8) KM_PTE1, -D(9) KM_IRQ0, -D(10) KM_IRQ1, -D(11) KM_SOFTIRQ0, -D(12) KM_SOFTIRQ1, -D(13) KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> -#undef D +#undef __WITH_KM_FENCE #endif diff --git a/arch/alpha/kernel/init_task.c b/arch/alpha/kernel/init_task.c index c2938e574a40..19b86328ffd7 100644 --- a/arch/alpha/kernel/init_task.c +++ b/arch/alpha/kernel/init_task.c @@ -10,10 +10,7 @@ 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); struct task_struct init_task = INIT_TASK(init_task); - -EXPORT_SYMBOL(init_mm); EXPORT_SYMBOL(init_task); union thread_union init_thread_union diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c index 67c19f8a9944..38c805dfc544 100644 --- a/arch/alpha/kernel/irq_alpha.c +++ b/arch/alpha/kernel/irq_alpha.c @@ -227,7 +227,7 @@ struct irqaction timer_irqaction = { .name = "timer", }; -static struct hw_interrupt_type rtc_irq_type = { +static struct irq_chip rtc_irq_type = { .typename = "RTC", .startup = rtc_startup, .shutdown = rtc_enable_disable, diff --git a/arch/alpha/kernel/irq_i8259.c b/arch/alpha/kernel/irq_i8259.c index 9405bee9894e..50bfec9b588f 100644 --- a/arch/alpha/kernel/irq_i8259.c +++ b/arch/alpha/kernel/irq_i8259.c @@ -83,7 +83,7 @@ i8259a_end_irq(unsigned int irq) i8259a_enable_irq(irq); } -struct hw_interrupt_type i8259a_irq_type = { +struct irq_chip i8259a_irq_type = { .typename = "XT-PIC", .startup = i8259a_startup_irq, .shutdown = i8259a_disable_irq, diff --git a/arch/alpha/kernel/irq_impl.h b/arch/alpha/kernel/irq_impl.h index cc9a8a7aa279..b63ccd7386f1 100644 --- a/arch/alpha/kernel/irq_impl.h +++ b/arch/alpha/kernel/irq_impl.h @@ -36,7 +36,7 @@ extern void i8259a_disable_irq(unsigned int); extern void i8259a_mask_and_ack_irq(unsigned int); extern unsigned int i8259a_startup_irq(unsigned int); extern void i8259a_end_irq(unsigned int); -extern struct hw_interrupt_type i8259a_irq_type; +extern struct irq_chip i8259a_irq_type; extern void init_i8259a_irqs(void); extern void handle_irq(int irq); diff --git a/arch/alpha/kernel/irq_pyxis.c b/arch/alpha/kernel/irq_pyxis.c index d53edbccbfe5..69199a76ec4a 100644 --- a/arch/alpha/kernel/irq_pyxis.c +++ b/arch/alpha/kernel/irq_pyxis.c @@ -70,7 +70,7 @@ pyxis_mask_and_ack_irq(unsigned int irq) *(vulp)PYXIS_INT_MASK; } -static struct hw_interrupt_type pyxis_irq_type = { +static struct irq_chip pyxis_irq_type = { .typename = "PYXIS", .startup = pyxis_startup_irq, .shutdown = pyxis_disable_irq, diff --git a/arch/alpha/kernel/irq_srm.c b/arch/alpha/kernel/irq_srm.c index a03fbca4940e..85229369a1f8 100644 --- a/arch/alpha/kernel/irq_srm.c +++ b/arch/alpha/kernel/irq_srm.c @@ -48,7 +48,7 @@ srm_end_irq(unsigned int irq) } /* Handle interrupts from the SRM, assuming no additional weirdness. */ -static struct hw_interrupt_type srm_irq_type = { +static struct irq_chip srm_irq_type = { .typename = "SRM", .startup = srm_startup_irq, .shutdown = srm_disable_irq, diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c index 80df86cd746b..d2634e4476b4 100644 --- a/arch/alpha/kernel/setup.c +++ b/arch/alpha/kernel/setup.c @@ -252,9 +252,9 @@ reserve_std_resources(void) } #define PFN_MAX PFN_DOWN(0x80000000) -#define for_each_mem_cluster(memdesc, cluster, i) \ - for ((cluster) = (memdesc)->cluster, (i) = 0; \ - (i) < (memdesc)->numclusters; (i)++, (cluster)++) +#define for_each_mem_cluster(memdesc, _cluster, i) \ + for ((_cluster) = (memdesc)->cluster, (i) = 0; \ + (i) < (memdesc)->numclusters; (i)++, (_cluster)++) static unsigned long __init get_mem_size_limit(char *s) diff --git a/arch/alpha/kernel/sys_alcor.c b/arch/alpha/kernel/sys_alcor.c index e53a1e1c2f21..382035ef7394 100644 --- a/arch/alpha/kernel/sys_alcor.c +++ b/arch/alpha/kernel/sys_alcor.c @@ -89,7 +89,7 @@ alcor_end_irq(unsigned int irq) alcor_enable_irq(irq); } -static struct hw_interrupt_type alcor_irq_type = { +static struct irq_chip alcor_irq_type = { .typename = "ALCOR", .startup = alcor_startup_irq, .shutdown = alcor_disable_irq, diff --git a/arch/alpha/kernel/sys_cabriolet.c b/arch/alpha/kernel/sys_cabriolet.c index ace475c124f6..ed349436732b 100644 --- a/arch/alpha/kernel/sys_cabriolet.c +++ b/arch/alpha/kernel/sys_cabriolet.c @@ -71,7 +71,7 @@ cabriolet_end_irq(unsigned int irq) cabriolet_enable_irq(irq); } -static struct hw_interrupt_type cabriolet_irq_type = { +static struct irq_chip cabriolet_irq_type = { .typename = "CABRIOLET", .startup = cabriolet_startup_irq, .shutdown = cabriolet_disable_irq, diff --git a/arch/alpha/kernel/sys_dp264.c b/arch/alpha/kernel/sys_dp264.c index 5bd5259324b7..46e70ece5176 100644 --- a/arch/alpha/kernel/sys_dp264.c +++ b/arch/alpha/kernel/sys_dp264.c @@ -198,7 +198,7 @@ clipper_set_affinity(unsigned int irq, const struct cpumask *affinity) return 0; } -static struct hw_interrupt_type dp264_irq_type = { +static struct irq_chip dp264_irq_type = { .typename = "DP264", .startup = dp264_startup_irq, .shutdown = dp264_disable_irq, @@ -209,7 +209,7 @@ static struct hw_interrupt_type dp264_irq_type = { .set_affinity = dp264_set_affinity, }; -static struct hw_interrupt_type clipper_irq_type = { +static struct irq_chip clipper_irq_type = { .typename = "CLIPPER", .startup = clipper_startup_irq, .shutdown = clipper_disable_irq, @@ -298,7 +298,7 @@ clipper_srm_device_interrupt(unsigned long vector) } static void __init -init_tsunami_irqs(struct hw_interrupt_type * ops, int imin, int imax) +init_tsunami_irqs(struct irq_chip * ops, int imin, int imax) { long i; for (i = imin; i <= imax; ++i) { diff --git a/arch/alpha/kernel/sys_eb64p.c b/arch/alpha/kernel/sys_eb64p.c index 9c5a306dc0ee..660c23ef661f 100644 --- a/arch/alpha/kernel/sys_eb64p.c +++ b/arch/alpha/kernel/sys_eb64p.c @@ -69,7 +69,7 @@ eb64p_end_irq(unsigned int irq) eb64p_enable_irq(irq); } -static struct hw_interrupt_type eb64p_irq_type = { +static struct irq_chip eb64p_irq_type = { .typename = "EB64P", .startup = eb64p_startup_irq, .shutdown = eb64p_disable_irq, diff --git a/arch/alpha/kernel/sys_eiger.c b/arch/alpha/kernel/sys_eiger.c index baf60f36cbd7..b99ea488d844 100644 --- a/arch/alpha/kernel/sys_eiger.c +++ b/arch/alpha/kernel/sys_eiger.c @@ -80,7 +80,7 @@ eiger_end_irq(unsigned int irq) eiger_enable_irq(irq); } -static struct hw_interrupt_type eiger_irq_type = { +static struct irq_chip eiger_irq_type = { .typename = "EIGER", .startup = eiger_startup_irq, .shutdown = eiger_disable_irq, diff --git a/arch/alpha/kernel/sys_jensen.c b/arch/alpha/kernel/sys_jensen.c index 2b5caf3d9b15..ef0b83a070ac 100644 --- a/arch/alpha/kernel/sys_jensen.c +++ b/arch/alpha/kernel/sys_jensen.c @@ -118,7 +118,7 @@ jensen_local_end(unsigned int irq) i8259a_end_irq(1); } -static struct hw_interrupt_type jensen_local_irq_type = { +static struct irq_chip jensen_local_irq_type = { .typename = "LOCAL", .startup = jensen_local_startup, .shutdown = jensen_local_shutdown, diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c index c5a1a2438c67..bbfc4f20ca72 100644 --- a/arch/alpha/kernel/sys_marvel.c +++ b/arch/alpha/kernel/sys_marvel.c @@ -169,7 +169,7 @@ marvel_irq_noop_return(unsigned int irq) return 0; } -static struct hw_interrupt_type marvel_legacy_irq_type = { +static struct irq_chip marvel_legacy_irq_type = { .typename = "LEGACY", .startup = marvel_irq_noop_return, .shutdown = marvel_irq_noop, @@ -179,7 +179,7 @@ static struct hw_interrupt_type marvel_legacy_irq_type = { .end = marvel_irq_noop, }; -static struct hw_interrupt_type io7_lsi_irq_type = { +static struct irq_chip io7_lsi_irq_type = { .typename = "LSI", .startup = io7_startup_irq, .shutdown = io7_disable_irq, @@ -189,7 +189,7 @@ static struct hw_interrupt_type io7_lsi_irq_type = { .end = io7_end_irq, }; -static struct hw_interrupt_type io7_msi_irq_type = { +static struct irq_chip io7_msi_irq_type = { .typename = "MSI", .startup = io7_startup_irq, .shutdown = io7_disable_irq, @@ -273,8 +273,8 @@ init_one_io7_msi(struct io7 *io7, unsigned int which, unsigned int where) static void __init init_io7_irqs(struct io7 *io7, - struct hw_interrupt_type *lsi_ops, - struct hw_interrupt_type *msi_ops) + struct irq_chip *lsi_ops, + struct irq_chip *msi_ops) { long base = (io7->pe << MARVEL_IRQ_VEC_PE_SHIFT) + 16; long i; diff --git a/arch/alpha/kernel/sys_mikasa.c b/arch/alpha/kernel/sys_mikasa.c index 8d3e9429c5ee..4e366641a08e 100644 --- a/arch/alpha/kernel/sys_mikasa.c +++ b/arch/alpha/kernel/sys_mikasa.c @@ -68,7 +68,7 @@ mikasa_end_irq(unsigned int irq) mikasa_enable_irq(irq); } -static struct hw_interrupt_type mikasa_irq_type = { +static struct irq_chip mikasa_irq_type = { .typename = "MIKASA", .startup = mikasa_startup_irq, .shutdown = mikasa_disable_irq, diff --git a/arch/alpha/kernel/sys_noritake.c b/arch/alpha/kernel/sys_noritake.c index 538876b62449..35753a173bac 100644 --- a/arch/alpha/kernel/sys_noritake.c +++ b/arch/alpha/kernel/sys_noritake.c @@ -73,7 +73,7 @@ noritake_end_irq(unsigned int irq) noritake_enable_irq(irq); } -static struct hw_interrupt_type noritake_irq_type = { +static struct irq_chip noritake_irq_type = { .typename = "NORITAKE", .startup = noritake_startup_irq, .shutdown = noritake_disable_irq, diff --git a/arch/alpha/kernel/sys_rawhide.c b/arch/alpha/kernel/sys_rawhide.c index 672cb2df53df..f3aec7e085c8 100644 --- a/arch/alpha/kernel/sys_rawhide.c +++ b/arch/alpha/kernel/sys_rawhide.c @@ -135,7 +135,7 @@ rawhide_end_irq(unsigned int irq) rawhide_enable_irq(irq); } -static struct hw_interrupt_type rawhide_irq_type = { +static struct irq_chip rawhide_irq_type = { .typename = "RAWHIDE", .startup = rawhide_startup_irq, .shutdown = rawhide_disable_irq, diff --git a/arch/alpha/kernel/sys_ruffian.c b/arch/alpha/kernel/sys_ruffian.c index f15a329b6011..d9f9cfeb9931 100644 --- a/arch/alpha/kernel/sys_ruffian.c +++ b/arch/alpha/kernel/sys_ruffian.c @@ -14,6 +14,7 @@ #include <linux/sched.h> #include <linux/pci.h> #include <linux/ioport.h> +#include <linux/timex.h> #include <linux/init.h> #include <asm/ptrace.h> diff --git a/arch/alpha/kernel/sys_rx164.c b/arch/alpha/kernel/sys_rx164.c index ce1faa6f1df1..fc9246373452 100644 --- a/arch/alpha/kernel/sys_rx164.c +++ b/arch/alpha/kernel/sys_rx164.c @@ -72,7 +72,7 @@ rx164_end_irq(unsigned int irq) rx164_enable_irq(irq); } -static struct hw_interrupt_type rx164_irq_type = { +static struct irq_chip rx164_irq_type = { .typename = "RX164", .startup = rx164_startup_irq, .shutdown = rx164_disable_irq, diff --git a/arch/alpha/kernel/sys_sable.c b/arch/alpha/kernel/sys_sable.c index 9e263256a42d..426eb6906d01 100644 --- a/arch/alpha/kernel/sys_sable.c +++ b/arch/alpha/kernel/sys_sable.c @@ -501,7 +501,7 @@ sable_lynx_mask_and_ack_irq(unsigned int irq) spin_unlock(&sable_lynx_irq_lock); } -static struct hw_interrupt_type sable_lynx_irq_type = { +static struct irq_chip sable_lynx_irq_type = { .typename = "SABLE/LYNX", .startup = sable_lynx_startup_irq, .shutdown = sable_lynx_disable_irq, diff --git a/arch/alpha/kernel/sys_takara.c b/arch/alpha/kernel/sys_takara.c index 9bd9a31450c6..830318c21661 100644 --- a/arch/alpha/kernel/sys_takara.c +++ b/arch/alpha/kernel/sys_takara.c @@ -74,7 +74,7 @@ takara_end_irq(unsigned int irq) takara_enable_irq(irq); } -static struct hw_interrupt_type takara_irq_type = { +static struct irq_chip takara_irq_type = { .typename = "TAKARA", .startup = takara_startup_irq, .shutdown = takara_disable_irq, diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c index 8dd239ebdb9e..88978fc60f83 100644 --- a/arch/alpha/kernel/sys_titan.c +++ b/arch/alpha/kernel/sys_titan.c @@ -185,7 +185,7 @@ titan_srm_device_interrupt(unsigned long vector) static void __init -init_titan_irqs(struct hw_interrupt_type * ops, int imin, int imax) +init_titan_irqs(struct irq_chip * ops, int imin, int imax) { long i; for (i = imin; i <= imax; ++i) { @@ -194,7 +194,7 @@ init_titan_irqs(struct hw_interrupt_type * ops, int imin, int imax) } } -static struct hw_interrupt_type titan_irq_type = { +static struct irq_chip titan_irq_type = { .typename = "TITAN", .startup = titan_startup_irq, .shutdown = titan_disable_irq, diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c index 42c3eede4d09..e91b4c3838a8 100644 --- a/arch/alpha/kernel/sys_wildfire.c +++ b/arch/alpha/kernel/sys_wildfire.c @@ -157,7 +157,7 @@ wildfire_end_irq(unsigned int irq) wildfire_enable_irq(irq); } -static struct hw_interrupt_type wildfire_irq_type = { +static struct irq_chip wildfire_irq_type = { .typename = "WILDFIRE", .startup = wildfire_startup_irq, .shutdown = wildfire_disable_irq, diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c index a13de49d1265..0eab55749423 100644 --- a/arch/alpha/mm/numa.c +++ b/arch/alpha/mm/numa.c @@ -28,9 +28,9 @@ EXPORT_SYMBOL(node_data); #define DBGDCONT(args...) #endif -#define for_each_mem_cluster(memdesc, cluster, i) \ - for ((cluster) = (memdesc)->cluster, (i) = 0; \ - (i) < (memdesc)->numclusters; (i)++, (cluster)++) +#define for_each_mem_cluster(memdesc, _cluster, i) \ + for ((_cluster) = (memdesc)->cluster, (i) = 0; \ + (i) < (memdesc)->numclusters; (i)++, (_cluster)++) static void __init show_mem_layout(void) { diff --git a/arch/arm/kernel/init_task.c b/arch/arm/kernel/init_task.c index e859af349467..3f470866bb89 100644 --- a/arch/arm/kernel/init_task.c +++ b/arch/arm/kernel/init_task.c @@ -14,10 +14,6 @@ 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); - /* * Initial thread structure. * diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c index 095521e9ee24..01791d74e08e 100644 --- a/arch/arm/mach-pxa/pcm990-baseboard.c +++ b/arch/arm/mach-pxa/pcm990-baseboard.c @@ -380,12 +380,12 @@ static struct pca953x_platform_data pca9536_data = { .gpio_base = NR_BUILTIN_GPIO, }; -static int gpio_bus_switch; +static int gpio_bus_switch = -EINVAL; static int pcm990_camera_set_bus_param(struct soc_camera_link *link, - unsigned long flags) + unsigned long flags) { - if (gpio_bus_switch <= 0) { + if (gpio_bus_switch < 0) { if (flags == SOCAM_DATAWIDTH_10) return 0; else @@ -404,25 +404,34 @@ static unsigned long pcm990_camera_query_bus_param(struct soc_camera_link *link) { int ret; - if (!gpio_bus_switch) { + if (gpio_bus_switch < 0) { ret = gpio_request(NR_BUILTIN_GPIO, "camera"); if (!ret) { gpio_bus_switch = NR_BUILTIN_GPIO; gpio_direction_output(gpio_bus_switch, 0); - } else - gpio_bus_switch = -EINVAL; + } } - if (gpio_bus_switch > 0) + if (gpio_bus_switch >= 0) return SOCAM_DATAWIDTH_8 | SOCAM_DATAWIDTH_10; else return SOCAM_DATAWIDTH_10; } +static void pcm990_camera_free_bus(struct soc_camera_link *link) +{ + if (gpio_bus_switch < 0) + return; + + gpio_free(gpio_bus_switch); + gpio_bus_switch = -EINVAL; +} + static struct soc_camera_link iclink = { .bus_id = 0, /* Must match with the camera ID above */ .query_bus_param = pcm990_camera_query_bus_param, .set_bus_param = pcm990_camera_set_bus_param, + .free_bus = pcm990_camera_free_bus, }; /* Board I2C devices. */ diff --git a/arch/arm/plat-s3c/include/plat/regs-usb-hsotg-phy.h b/arch/arm/plat-s3c/include/plat/regs-usb-hsotg-phy.h new file mode 100644 index 000000000000..36a85f5000c8 --- /dev/null +++ b/arch/arm/plat-s3c/include/plat/regs-usb-hsotg-phy.h @@ -0,0 +1,50 @@ +/* arch/arm/plat-s3c/include/plat/regs-usb-hsotg-phy.h + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * S3C - USB2.0 Highspeed/OtG device PHY registers + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +/* Note, this is a seperate header file as some of the clock framework + * needs to touch this if the clk_48m is used as the USB OHCI or other + * peripheral source. +*/ + +#ifndef __PLAT_S3C64XX_REGS_USB_HSOTG_PHY_H +#define __PLAT_S3C64XX_REGS_USB_HSOTG_PHY_H __FILE__ + +/* S3C64XX_PA_USB_HSPHY */ + +#define S3C_HSOTG_PHYREG(x) ((x) + S3C_VA_USB_HSPHY) + +#define S3C_PHYPWR S3C_HSOTG_PHYREG(0x00) +#define SRC_PHYPWR_OTG_DISABLE (1 << 4) +#define SRC_PHYPWR_ANALOG_POWERDOWN (1 << 3) +#define SRC_PHYPWR_FORCE_SUSPEND (1 << 1) + +#define S3C_PHYCLK S3C_HSOTG_PHYREG(0x04) +#define S3C_PHYCLK_MODE_USB11 (1 << 6) +#define S3C_PHYCLK_EXT_OSC (1 << 5) +#define S3C_PHYCLK_CLK_FORCE (1 << 4) +#define S3C_PHYCLK_ID_PULL (1 << 2) +#define S3C_PHYCLK_CLKSEL_MASK (0x3 << 0) +#define S3C_PHYCLK_CLKSEL_SHIFT (0) +#define S3C_PHYCLK_CLKSEL_48M (0x0 << 0) +#define S3C_PHYCLK_CLKSEL_12M (0x2 << 0) +#define S3C_PHYCLK_CLKSEL_24M (0x3 << 0) + +#define S3C_RSTCON S3C_HSOTG_PHYREG(0x08) +#define S3C_RSTCON_PHYCLK (1 << 2) +#define S3C_RSTCON_HCLK (1 << 2) +#define S3C_RSTCON_PHY (1 << 0) + +#define S3C_PHYTUNE S3C_HSOTG_PHYREG(0x20) + +#endif /* __PLAT_S3C64XX_REGS_USB_HSOTG_PHY_H */ diff --git a/arch/arm/plat-s3c/include/plat/regs-usb-hsotg.h b/arch/arm/plat-s3c/include/plat/regs-usb-hsotg.h new file mode 100644 index 000000000000..8d18d9d4d148 --- /dev/null +++ b/arch/arm/plat-s3c/include/plat/regs-usb-hsotg.h @@ -0,0 +1,377 @@ +/* arch/arm/plat-s3c/include/plat/regs-usb-hsotg.h + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * S3C - USB2.0 Highspeed/OtG device block registers + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef __PLAT_S3C64XX_REGS_USB_HSOTG_H +#define __PLAT_S3C64XX_REGS_USB_HSOTG_H __FILE__ + +#define S3C_HSOTG_REG(x) (x) + +#define S3C_GOTGCTL S3C_HSOTG_REG(0x000) +#define S3C_GOTGCTL_BSESVLD (1 << 19) +#define S3C_GOTGCTL_ASESVLD (1 << 18) +#define S3C_GOTGCTL_DBNC_SHORT (1 << 17) +#define S3C_GOTGCTL_CONID_B (1 << 16) +#define S3C_GOTGCTL_DEVHNPEN (1 << 11) +#define S3C_GOTGCTL_HSSETHNPEN (1 << 10) +#define S3C_GOTGCTL_HNPREQ (1 << 9) +#define S3C_GOTGCTL_HSTNEGSCS (1 << 8) +#define S3C_GOTGCTL_SESREQ (1 << 1) +#define S3C_GOTGCTL_SESREQSCS (1 << 0) + +#define S3C_GOTGINT S3C_HSOTG_REG(0x004) +#define S3C_GOTGINT_DbnceDone (1 << 19) +#define S3C_GOTGINT_ADevTOUTChg (1 << 18) +#define S3C_GOTGINT_HstNegDet (1 << 17) +#define S3C_GOTGINT_HstnegSucStsChng (1 << 9) +#define S3C_GOTGINT_SesReqSucStsChng (1 << 8) +#define S3C_GOTGINT_SesEndDet (1 << 2) + +#define S3C_GAHBCFG S3C_HSOTG_REG(0x008) +#define S3C_GAHBCFG_PTxFEmpLvl (1 << 8) +#define S3C_GAHBCFG_NPTxFEmpLvl (1 << 7) +#define S3C_GAHBCFG_DMAEn (1 << 5) +#define S3C_GAHBCFG_HBstLen_MASK (0xf << 1) +#define S3C_GAHBCFG_HBstLen_SHIFT (1) +#define S3C_GAHBCFG_HBstLen_Single (0x0 << 1) +#define S3C_GAHBCFG_HBstLen_Incr (0x1 << 1) +#define S3C_GAHBCFG_HBstLen_Incr4 (0x3 << 1) +#define S3C_GAHBCFG_HBstLen_Incr8 (0x5 << 1) +#define S3C_GAHBCFG_HBstLen_Incr16 (0x7 << 1) +#define S3C_GAHBCFG_GlblIntrEn (1 << 0) + +#define S3C_GUSBCFG S3C_HSOTG_REG(0x00C) +#define S3C_GUSBCFG_PHYLPClkSel (1 << 15) +#define S3C_GUSBCFG_HNPCap (1 << 9) +#define S3C_GUSBCFG_SRPCap (1 << 8) +#define S3C_GUSBCFG_PHYIf16 (1 << 3) +#define S3C_GUSBCFG_TOutCal_MASK (0x7 << 0) +#define S3C_GUSBCFG_TOutCal_SHIFT (0) +#define S3C_GUSBCFG_TOutCal_LIMIT (0x7) +#define S3C_GUSBCFG_TOutCal(_x) ((_x) << 0) + +#define S3C_GRSTCTL S3C_HSOTG_REG(0x010) + +#define S3C_GRSTCTL_AHBIdle (1 << 31) +#define S3C_GRSTCTL_DMAReq (1 << 30) +#define S3C_GRSTCTL_TxFNum_MASK (0x1f << 6) +#define S3C_GRSTCTL_TxFNum_SHIFT (6) +#define S3C_GRSTCTL_TxFNum_LIMIT (0x1f) +#define S3C_GRSTCTL_TxFNum(_x) ((_x) << 6) +#define S3C_GRSTCTL_TxFFlsh (1 << 5) +#define S3C_GRSTCTL_RxFFlsh (1 << 4) +#define S3C_GRSTCTL_INTknQFlsh (1 << 3) +#define S3C_GRSTCTL_FrmCntrRst (1 << 2) +#define S3C_GRSTCTL_HSftRst (1 << 1) +#define S3C_GRSTCTL_CSftRst (1 << 0) + +#define S3C_GINTSTS S3C_HSOTG_REG(0x014) +#define S3C_GINTMSK S3C_HSOTG_REG(0x018) + +#define S3C_GINTSTS_WkUpInt (1 << 31) +#define S3C_GINTSTS_SessReqInt (1 << 30) +#define S3C_GINTSTS_DisconnInt (1 << 29) +#define S3C_GINTSTS_ConIDStsChng (1 << 28) +#define S3C_GINTSTS_PTxFEmp (1 << 26) +#define S3C_GINTSTS_HChInt (1 << 25) +#define S3C_GINTSTS_PrtInt (1 << 24) +#define S3C_GINTSTS_FetSusp (1 << 22) +#define S3C_GINTSTS_incompIP (1 << 21) +#define S3C_GINTSTS_IncomplSOIN (1 << 20) +#define S3C_GINTSTS_OEPInt (1 << 19) +#define S3C_GINTSTS_IEPInt (1 << 18) +#define S3C_GINTSTS_EPMis (1 << 17) +#define S3C_GINTSTS_EOPF (1 << 15) +#define S3C_GINTSTS_ISOutDrop (1 << 14) +#define S3C_GINTSTS_EnumDone (1 << 13) +#define S3C_GINTSTS_USBRst (1 << 12) +#define S3C_GINTSTS_USBSusp (1 << 11) +#define S3C_GINTSTS_ErlySusp (1 << 10) +#define S3C_GINTSTS_GOUTNakEff (1 << 7) +#define S3C_GINTSTS_GINNakEff (1 << 6) +#define S3C_GINTSTS_NPTxFEmp (1 << 5) +#define S3C_GINTSTS_RxFLvl (1 << 4) +#define S3C_GINTSTS_SOF (1 << 3) +#define S3C_GINTSTS_OTGInt (1 << 2) +#define S3C_GINTSTS_ModeMis (1 << 1) +#define S3C_GINTSTS_CurMod_Host (1 << 0) + +#define S3C_GRXSTSR S3C_HSOTG_REG(0x01C) +#define S3C_GRXSTSP S3C_HSOTG_REG(0x020) + +#define S3C_GRXSTS_FN_MASK (0x7f << 25) +#define S3C_GRXSTS_FN_SHIFT (25) + +#define S3C_GRXSTS_PktSts_MASK (0xf << 17) +#define S3C_GRXSTS_PktSts_SHIFT (17) +#define S3C_GRXSTS_PktSts_GlobalOutNAK (0x1 << 17) +#define S3C_GRXSTS_PktSts_OutRX (0x2 << 17) +#define S3C_GRXSTS_PktSts_OutDone (0x3 << 17) +#define S3C_GRXSTS_PktSts_SetupDone (0x4 << 17) +#define S3C_GRXSTS_PktSts_SetupRX (0x6 << 17) + +#define S3C_GRXSTS_DPID_MASK (0x3 << 15) +#define S3C_GRXSTS_DPID_SHIFT (15) +#define S3C_GRXSTS_ByteCnt_MASK (0x7ff << 4) +#define S3C_GRXSTS_ByteCnt_SHIFT (4) +#define S3C_GRXSTS_EPNum_MASK (0xf << 0) +#define S3C_GRXSTS_EPNum_SHIFT (0) + +#define S3C_GRXFSIZ S3C_HSOTG_REG(0x024) + +#define S3C_GNPTXFSIZ S3C_HSOTG_REG(0x028) + +#define S3C_GNPTXFSIZ_NPTxFDep_MASK (0xffff << 16) +#define S3C_GNPTXFSIZ_NPTxFDep_SHIFT (16) +#define S3C_GNPTXFSIZ_NPTxFDep_LIMIT (0xffff) +#define S3C_GNPTXFSIZ_NPTxFDep(_x) ((_x) << 16) +#define S3C_GNPTXFSIZ_NPTxFStAddr_MASK (0xffff << 0) +#define S3C_GNPTXFSIZ_NPTxFStAddr_SHIFT (0) +#define S3C_GNPTXFSIZ_NPTxFStAddr_LIMIT (0xffff) +#define S3C_GNPTXFSIZ_NPTxFStAddr(_x) ((_x) << 0) + +#define S3C_GNPTXSTS S3C_HSOTG_REG(0x02C) + +#define S3C_GNPTXSTS_NPtxQTop_MASK (0x7f << 24) +#define S3C_GNPTXSTS_NPtxQTop_SHIFT (24) + +#define S3C_GNPTXSTS_NPTxQSpcAvail_MASK (0xff << 16) +#define S3C_GNPTXSTS_NPTxQSpcAvail_SHIFT (16) +#define S3C_GNPTXSTS_NPTxQSpcAvail_GET(_v) (((_v) >> 16) & 0xff) + +#define S3C_GNPTXSTS_NPTxFSpcAvail_MASK (0xffff << 0) +#define S3C_GNPTXSTS_NPTxFSpcAvail_SHIFT (0) +#define S3C_GNPTXSTS_NPTxFSpcAvail_GET(_v) (((_v) >> 0) & 0xffff) + + +#define S3C_HPTXFSIZ S3C_HSOTG_REG(0x100) + +#define S3C_DPTXFSIZn(_a) S3C_HSOTG_REG(0x104 + (((_a) - 1) * 4)) + +#define S3C_DPTXFSIZn_DPTxFSize_MASK (0xffff << 16) +#define S3C_DPTXFSIZn_DPTxFSize_SHIFT (16) +#define S3C_DPTXFSIZn_DPTxFSize_GET(_v) (((_v) >> 16) & 0xffff) +#define S3C_DPTXFSIZn_DPTxFSize_LIMIT (0xffff) +#define S3C_DPTXFSIZn_DPTxFSize(_x) ((_x) << 16) + +#define S3C_DPTXFSIZn_DPTxFStAddr_MASK (0xffff << 0) +#define S3C_DPTXFSIZn_DPTxFStAddr_SHIFT (0) + +/* Device mode registers */ +#define S3C_DCFG S3C_HSOTG_REG(0x800) + +#define S3C_DCFG_EPMisCnt_MASK (0x1f << 18) +#define S3C_DCFG_EPMisCnt_SHIFT (18) +#define S3C_DCFG_EPMisCnt_LIMIT (0x1f) +#define S3C_DCFG_EPMisCnt(_x) ((_x) << 18) + +#define S3C_DCFG_PerFrInt_MASK (0x3 << 11) +#define S3C_DCFG_PerFrInt_SHIFT (11) +#define S3C_DCFG_PerFrInt_LIMIT (0x3) +#define S3C_DCFG_PerFrInt(_x) ((_x) << 11) + +#define S3C_DCFG_DevAddr_MASK (0x7f << 4) +#define S3C_DCFG_DevAddr_SHIFT (4) +#define S3C_DCFG_DevAddr_LIMIT (0x7f) +#define S3C_DCFG_DevAddr(_x) ((_x) << 4) + +#define S3C_DCFG_NZStsOUTHShk (1 << 2) + +#define S3C_DCFG_DevSpd_MASK (0x3 << 0) +#define S3C_DCFG_DevSpd_SHIFT (0) +#define S3C_DCFG_DevSpd_HS (0x0 << 0) +#define S3C_DCFG_DevSpd_FS (0x1 << 0) +#define S3C_DCFG_DevSpd_LS (0x2 << 0) +#define S3C_DCFG_DevSpd_FS48 (0x3 << 0) + +#define S3C_DCTL S3C_HSOTG_REG(0x804) + +#define S3C_DCTL_PWROnPrgDone (1 << 11) +#define S3C_DCTL_CGOUTNak (1 << 10) +#define S3C_DCTL_SGOUTNak (1 << 9) +#define S3C_DCTL_CGNPInNAK (1 << 8) +#define S3C_DCTL_SGNPInNAK (1 << 7) +#define S3C_DCTL_TstCtl_MASK (0x7 << 4) +#define S3C_DCTL_TstCtl_SHIFT (4) +#define S3C_DCTL_GOUTNakSts (1 << 3) +#define S3C_DCTL_GNPINNakSts (1 << 2) +#define S3C_DCTL_SftDiscon (1 << 1) +#define S3C_DCTL_RmtWkUpSig (1 << 0) + +#define S3C_DSTS S3C_HSOTG_REG(0x808) + +#define S3C_DSTS_SOFFN_MASK (0x3fff << 8) +#define S3C_DSTS_SOFFN_SHIFT (8) +#define S3C_DSTS_SOFFN_LIMIT (0x3fff) +#define S3C_DSTS_SOFFN(_x) ((_x) << 8) +#define S3C_DSTS_ErraticErr (1 << 3) +#define S3C_DSTS_EnumSpd_MASK (0x3 << 1) +#define S3C_DSTS_EnumSpd_SHIFT (1) +#define S3C_DSTS_EnumSpd_HS (0x0 << 1) +#define S3C_DSTS_EnumSpd_FS (0x1 << 1) +#define S3C_DSTS_EnumSpd_LS (0x2 << 1) +#define S3C_DSTS_EnumSpd_FS48 (0x3 << 1) + +#define S3C_DSTS_SuspSts (1 << 0) + +#define S3C_DIEPMSK S3C_HSOTG_REG(0x810) + +#define S3C_DIEPMSK_INEPNakEffMsk (1 << 6) +#define S3C_DIEPMSK_INTknEPMisMsk (1 << 5) +#define S3C_DIEPMSK_INTknTXFEmpMsk (1 << 4) +#define S3C_DIEPMSK_TimeOUTMsk (1 << 3) +#define S3C_DIEPMSK_AHBErrMsk (1 << 2) +#define S3C_DIEPMSK_EPDisbldMsk (1 << 1) +#define S3C_DIEPMSK_XferComplMsk (1 << 0) + +#define S3C_DOEPMSK S3C_HSOTG_REG(0x814) + +#define S3C_DOEPMSK_Back2BackSetup (1 << 6) +#define S3C_DOEPMSK_OUTTknEPdisMsk (1 << 4) +#define S3C_DOEPMSK_SetupMsk (1 << 3) +#define S3C_DOEPMSK_AHBErrMsk (1 << 2) +#define S3C_DOEPMSK_EPDisbldMsk (1 << 1) +#define S3C_DOEPMSK_XferComplMsk (1 << 0) + +#define S3C_DAINT S3C_HSOTG_REG(0x818) +#define S3C_DAINTMSK S3C_HSOTG_REG(0x81C) + +#define S3C_DAINT_OutEP_SHIFT (16) +#define S3C_DAINT_OutEP(x) (1 << ((x) + 16)) +#define S3C_DAINT_InEP(x) (1 << (x)) + +#define S3C_DTKNQR1 S3C_HSOTG_REG(0x820) +#define S3C_DTKNQR2 S3C_HSOTG_REG(0x824) +#define S3C_DTKNQR3 S3C_HSOTG_REG(0x830) +#define S3C_DTKNQR4 S3C_HSOTG_REG(0x834) + +#define S3C_DVBUSDIS S3C_HSOTG_REG(0x828) +#define S3C_DVBUSPULSE S3C_HSOTG_REG(0x82C) + +#define S3C_DIEPCTL0 S3C_HSOTG_REG(0x900) +#define S3C_DOEPCTL0 S3C_HSOTG_REG(0xB00) +#define S3C_DIEPCTL(_a) S3C_HSOTG_REG(0x900 + ((_a) * 0x20)) +#define S3C_DOEPCTL(_a) S3C_HSOTG_REG(0xB00 + ((_a) * 0x20)) + +/* EP0 specialness: + * bits[29..28] - reserved (no SetD0PID, SetD1PID) + * bits[25..22] - should always be zero, this isn't a periodic endpoint + * bits[10..0] - MPS setting differenct for EP0 +*/ +#define S3C_D0EPCTL_MPS_MASK (0x3 << 0) +#define S3C_D0EPCTL_MPS_SHIFT (0) +#define S3C_D0EPCTL_MPS_64 (0x0 << 0) +#define S3C_D0EPCTL_MPS_32 (0x1 << 0) +#define S3C_D0EPCTL_MPS_16 (0x2 << 0) +#define S3C_D0EPCTL_MPS_8 (0x3 << 0) + +#define S3C_DxEPCTL_EPEna (1 << 31) +#define S3C_DxEPCTL_EPDis (1 << 30) +#define S3C_DxEPCTL_SetD1PID (1 << 29) +#define S3C_DxEPCTL_SetOddFr (1 << 29) +#define S3C_DxEPCTL_SetD0PID (1 << 28) +#define S3C_DxEPCTL_SetEvenFr (1 << 28) +#define S3C_DxEPCTL_SNAK (1 << 27) +#define S3C_DxEPCTL_CNAK (1 << 26) +#define S3C_DxEPCTL_TxFNum_MASK (0xf << 22) +#define S3C_DxEPCTL_TxFNum_SHIFT (22) +#define S3C_DxEPCTL_TxFNum_LIMIT (0xf) +#define S3C_DxEPCTL_TxFNum(_x) ((_x) << 22) + +#define S3C_DxEPCTL_Stall (1 << 21) +#define S3C_DxEPCTL_Snp (1 << 20) +#define S3C_DxEPCTL_EPType_MASK (0x3 << 18) +#define S3C_DxEPCTL_EPType_SHIFT (18) +#define S3C_DxEPCTL_EPType_Control (0x0 << 18) +#define S3C_DxEPCTL_EPType_Iso (0x1 << 18) +#define S3C_DxEPCTL_EPType_Bulk (0x2 << 18) +#define S3C_DxEPCTL_EPType_Intterupt (0x3 << 18) + +#define S3C_DxEPCTL_NAKsts (1 << 17) +#define S3C_DxEPCTL_DPID (1 << 16) +#define S3C_DxEPCTL_EOFrNum (1 << 16) +#define S3C_DxEPCTL_USBActEp (1 << 15) +#define S3C_DxEPCTL_NextEp_MASK (0xf << 11) +#define S3C_DxEPCTL_NextEp_SHIFT (11) +#define S3C_DxEPCTL_NextEp_LIMIT (0xf) +#define S3C_DxEPCTL_NextEp(_x) ((_x) << 11) + +#define S3C_DxEPCTL_MPS_MASK (0x7ff << 0) +#define S3C_DxEPCTL_MPS_SHIFT (0) +#define S3C_DxEPCTL_MPS_LIMIT (0x7ff) +#define S3C_DxEPCTL_MPS(_x) ((_x) << 0) + +#define S3C_DIEPINT(_a) S3C_HSOTG_REG(0x908 + ((_a) * 0x20)) +#define S3C_DOEPINT(_a) S3C_HSOTG_REG(0xB08 + ((_a) * 0x20)) + +#define S3C_DxEPINT_INEPNakEff (1 << 6) +#define S3C_DxEPINT_Back2BackSetup (1 << 6) +#define S3C_DxEPINT_INTknEPMis (1 << 5) +#define S3C_DxEPINT_INTknTXFEmp (1 << 4) +#define S3C_DxEPINT_OUTTknEPdis (1 << 4) +#define S3C_DxEPINT_Timeout (1 << 3) +#define S3C_DxEPINT_Setup (1 << 3) +#define S3C_DxEPINT_AHBErr (1 << 2) +#define S3C_DxEPINT_EPDisbld (1 << 1) +#define S3C_DxEPINT_XferCompl (1 << 0) + +#define S3C_DIEPTSIZ0 S3C_HSOTG_REG(0x910) + +#define S3C_DIEPTSIZ0_PktCnt_MASK (0x3 << 19) +#define S3C_DIEPTSIZ0_PktCnt_SHIFT (19) +#define S3C_DIEPTSIZ0_PktCnt_LIMIT (0x3) +#define S3C_DIEPTSIZ0_PktCnt(_x) ((_x) << 19) + +#define S3C_DIEPTSIZ0_XferSize_MASK (0x7f << 0) +#define S3C_DIEPTSIZ0_XferSize_SHIFT (0) +#define S3C_DIEPTSIZ0_XferSize_LIMIT (0x7f) +#define S3C_DIEPTSIZ0_XferSize(_x) ((_x) << 0) + + +#define DOEPTSIZ0 S3C_HSOTG_REG(0xB10) +#define S3C_DOEPTSIZ0_SUPCnt_MASK (0x3 << 29) +#define S3C_DOEPTSIZ0_SUPCnt_SHIFT (29) +#define S3C_DOEPTSIZ0_SUPCnt_LIMIT (0x3) +#define S3C_DOEPTSIZ0_SUPCnt(_x) ((_x) << 29) + +#define S3C_DOEPTSIZ0_PktCnt (1 << 19) +#define S3C_DOEPTSIZ0_XferSize_MASK (0x7f << 0) +#define S3C_DOEPTSIZ0_XferSize_SHIFT (0) + +#define S3C_DIEPTSIZ(_a) S3C_HSOTG_REG(0x910 + ((_a) * 0x20)) +#define S3C_DOEPTSIZ(_a) S3C_HSOTG_REG(0xB10 + ((_a) * 0x20)) + +#define S3C_DxEPTSIZ_MC_MASK (0x3 << 29) +#define S3C_DxEPTSIZ_MC_SHIFT (29) +#define S3C_DxEPTSIZ_MC_LIMIT (0x3) +#define S3C_DxEPTSIZ_MC(_x) ((_x) << 29) + +#define S3C_DxEPTSIZ_PktCnt_MASK (0x3ff << 19) +#define S3C_DxEPTSIZ_PktCnt_SHIFT (19) +#define S3C_DxEPTSIZ_PktCnt_GET(_v) (((_v) >> 19) & 0x3ff) +#define S3C_DxEPTSIZ_PktCnt_LIMIT (0x3ff) +#define S3C_DxEPTSIZ_PktCnt(_x) ((_x) << 19) + +#define S3C_DxEPTSIZ_XferSize_MASK (0x7ffff << 0) +#define S3C_DxEPTSIZ_XferSize_SHIFT (0) +#define S3C_DxEPTSIZ_XferSize_GET(_v) (((_v) >> 0) & 0x7ffff) +#define S3C_DxEPTSIZ_XferSize_LIMIT (0x7ffff) +#define S3C_DxEPTSIZ_XferSize(_x) ((_x) << 0) + + +#define S3C_DIEPDMA(_a) S3C_HSOTG_REG(0x914 + ((_a) * 0x20)) +#define S3C_DOEPDMA(_a) S3C_HSOTG_REG(0xB14 + ((_a) * 0x20)) + +#define S3C_EPFIFO(_a) S3C_HSOTG_REG(0x1000 + ((_a) * 0x1000)) + +#endif /* __PLAT_S3C64XX_REGS_USB_HSOTG_H */ diff --git a/arch/avr32/kernel/init_task.c b/arch/avr32/kernel/init_task.c index 993d56ee3cf3..57ec9f2dcd95 100644 --- a/arch/avr32/kernel/init_task.c +++ b/arch/avr32/kernel/init_task.c @@ -15,10 +15,6 @@ 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); - /* * Initial thread structure. Must be aligned on an 8192-byte boundary. */ diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index a60cfe757914..8ea0d942cdea 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -6,59 +6,65 @@ mainmenu "Blackfin Kernel Configuration" config MMU - bool - default n + def_bool n config FPU - bool - default n + def_bool n config RWSEM_GENERIC_SPINLOCK - bool - default y + def_bool y config RWSEM_XCHGADD_ALGORITHM - bool - default n + def_bool n config BLACKFIN - bool - default y + def_bool y + select HAVE_FUNCTION_GRAPH_TRACER + select HAVE_FUNCTION_TRACER select HAVE_IDE + select HAVE_KERNEL_GZIP + select HAVE_KERNEL_BZIP2 + select HAVE_KERNEL_LZMA select HAVE_OPROFILE select ARCH_WANT_OPTIONAL_GPIOLIB +config GENERIC_BUG + def_bool y + depends on BUG + config ZONE_DMA - bool - default y + def_bool y config GENERIC_FIND_NEXT_BIT - bool - default y + def_bool y config GENERIC_HWEIGHT - bool - default y + def_bool y config GENERIC_HARDIRQS - bool - default y + def_bool y config GENERIC_IRQ_PROBE - bool - default y + def_bool y config GENERIC_GPIO - bool - default y + def_bool y config FORCE_MAX_ZONEORDER int default "14" config GENERIC_CALIBRATE_DELAY - bool - default y + def_bool y + +config LOCKDEP_SUPPORT + def_bool y + +config STACKTRACE_SUPPORT + def_bool y + +config TRACE_IRQFLAGS_SUPPORT + def_bool y source "init/Kconfig" @@ -408,12 +414,12 @@ comment "Clock/PLL Setup" config CLKIN_HZ int "Frequency of the crystal on the board in Hz" + default "10000000" if BFIN532_IP0X default "11059200" if BFIN533_STAMP + default "24576000" if PNAV10 + default "25000000" # most people use this default "27000000" if BFIN533_EZKIT - default "25000000" if (BFIN537_STAMP || BFIN527_EZKIT || H8606_HVSISTEMAS || BLACKSTAMP || BFIN526_EZBRD || BFIN538_EZKIT || BFIN518F-EZBRD) default "30000000" if BFIN561_EZKIT - default "24576000" if PNAV10 - default "10000000" if BFIN532_IP0X help The frequency of CLKIN crystal oscillator on the board in Hz. Warning: This value should match the crystal on the board. Otherwise, diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile index d54c8283825c..6f9533c3d752 100644 --- a/arch/blackfin/Makefile +++ b/arch/blackfin/Makefile @@ -137,7 +137,7 @@ archclean: INSTALL_PATH ?= /tftpboot boot := arch/$(ARCH)/boot -BOOT_TARGETS = vmImage +BOOT_TARGETS = vmImage vmImage.bz2 vmImage.gz vmImage.lzma PHONY += $(BOOT_TARGETS) install KBUILD_IMAGE := $(boot)/vmImage @@ -150,7 +150,10 @@ install: $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install define archhelp - echo '* vmImage - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage)' + echo '* vmImage - Alias to selected kernel format (vmImage.gz by default)' + echo ' vmImage.bz2 - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.bz2)' + echo '* vmImage.gz - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.gz)' + echo ' vmImage.lzma - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.lzma)' echo ' install - Install kernel using' echo ' (your) ~/bin/$(CROSS_COMPILE)installkernel or' echo ' (distribution) PATH: $(CROSS_COMPILE)installkernel or' diff --git a/arch/blackfin/boot/.gitignore b/arch/blackfin/boot/.gitignore index 3ae03994b88d..229e50808677 100644 --- a/arch/blackfin/boot/.gitignore +++ b/arch/blackfin/boot/.gitignore @@ -1 +1,2 @@ -+vmImage +vmImage* +vmlinux* diff --git a/arch/blackfin/boot/Makefile b/arch/blackfin/boot/Makefile index e028d13481a9..3ab6f23561dd 100644 --- a/arch/blackfin/boot/Makefile +++ b/arch/blackfin/boot/Makefile @@ -8,24 +8,41 @@ MKIMAGE := $(srctree)/scripts/mkuboot.sh -targets := vmImage -extra-y += vmlinux.bin vmlinux.gz +targets := vmImage vmImage.bz2 vmImage.gz vmImage.lzma +extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma quiet_cmd_uimage = UIMAGE $@ cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(ARCH) -O linux -T kernel \ - -C gzip -n 'Linux-$(KERNELRELEASE)' -a $(CONFIG_BOOT_LOAD) \ + -C $(2) -n 'Linux-$(KERNELRELEASE)' -a $(CONFIG_BOOT_LOAD) \ -e $(shell $(NM) vmlinux | awk '$$NF == "__start" {print $$1}') \ -d $< $@ $(obj)/vmlinux.bin: vmlinux FORCE $(call if_changed,objcopy) -$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE +$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE $(call if_changed,gzip) -$(obj)/vmImage: $(obj)/vmlinux.gz - $(call if_changed,uimage) - @$(kecho) 'Kernel: $@ is ready' +$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE + $(call if_changed,bzip2) + +$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE + $(call if_changed,lzma) + +$(obj)/vmImage.bz2: $(obj)/vmlinux.bin.bz2 + $(call if_changed,uimage,bzip2) + +$(obj)/vmImage.gz: $(obj)/vmlinux.bin.gz + $(call if_changed,uimage,gzip) + +$(obj)/vmImage.lzma: $(obj)/vmlinux.bin.lzma + $(call if_changed,uimage,lzma) + +suffix-$(CONFIG_KERNEL_GZIP) := gz +suffix-$(CONFIG_KERNEL_BZIP2) := bz2 +suffix-$(CONFIG_KERNEL_LZMA) := lzma +$(obj)/vmImage: $(obj)/vmImage.$(suffix-y) + @ln -sf $(notdir $<) $@ install: sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)" diff --git a/arch/blackfin/include/asm/atomic.h b/arch/blackfin/include/asm/atomic.h index 7bbf44e4ddf9..b1d92f13ef96 100644 --- a/arch/blackfin/include/asm/atomic.h +++ b/arch/blackfin/include/asm/atomic.h @@ -90,7 +90,7 @@ static inline int atomic_test_mask(int mask, atomic_t *v) static inline void atomic_add(int i, atomic_t *v) { - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter += i; @@ -99,7 +99,7 @@ static inline void atomic_add(int i, atomic_t *v) static inline void atomic_sub(int i, atomic_t *v) { - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter -= i; @@ -110,7 +110,7 @@ static inline void atomic_sub(int i, atomic_t *v) static inline int atomic_add_return(int i, atomic_t *v) { int __temp = 0; - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter += i; @@ -124,7 +124,7 @@ static inline int atomic_add_return(int i, atomic_t *v) static inline int atomic_sub_return(int i, atomic_t *v) { int __temp = 0; - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter -= i; @@ -136,7 +136,7 @@ static inline int atomic_sub_return(int i, atomic_t *v) static inline void atomic_inc(volatile atomic_t *v) { - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter++; @@ -145,7 +145,7 @@ static inline void atomic_inc(volatile atomic_t *v) static inline void atomic_dec(volatile atomic_t *v) { - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter--; @@ -154,7 +154,7 @@ static inline void atomic_dec(volatile atomic_t *v) static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) { - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter &= ~mask; @@ -163,7 +163,7 @@ static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) static inline void atomic_set_mask(unsigned int mask, atomic_t *v) { - long flags; + unsigned long flags; local_irq_save_hw(flags); v->counter |= mask; diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h index daffc0684e75..e39277ea43e8 100644 --- a/arch/blackfin/include/asm/bfin-global.h +++ b/arch/blackfin/include/asm/bfin-global.h @@ -31,7 +31,7 @@ #ifndef __ASSEMBLY__ -#include <asm-generic/sections.h> +#include <asm/sections.h> #include <asm/ptrace.h> #include <asm/user.h> #include <linux/linkage.h> @@ -99,15 +99,6 @@ extern const char bfin_board_name[]; extern unsigned long bfin_sic_iwr[]; extern unsigned vr_wakeup; extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */ -extern unsigned long _ramstart, _ramend, _rambase; -extern unsigned long memory_start, memory_end, physical_mem_end; -extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[], - _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[], - _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[], - _ebss_l2[], _l2_lma_start[]; - -/* only used when MTD_UCLINUX */ -extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size; #ifdef CONFIG_BFIN_ICACHE_LOCK extern void cache_grab_lock(int way); diff --git a/arch/blackfin/include/asm/bitops.h b/arch/blackfin/include/asm/bitops.h index 21b036eadab1..75fee2f7d9f2 100644 --- a/arch/blackfin/include/asm/bitops.h +++ b/arch/blackfin/include/asm/bitops.h @@ -109,7 +109,8 @@ static inline void clear_bit(int nr, volatile unsigned long *addr) static inline void change_bit(int nr, volatile unsigned long *addr) { - int mask, flags; + int mask; + unsigned long flags; unsigned long *ADDR = (unsigned long *)addr; ADDR += nr >> 5; diff --git a/arch/blackfin/include/asm/bug.h b/arch/blackfin/include/asm/bug.h index 6d3e11b1fc57..655e49540e41 100644 --- a/arch/blackfin/include/asm/bug.h +++ b/arch/blackfin/include/asm/bug.h @@ -2,13 +2,58 @@ #define _BLACKFIN_BUG_H #ifdef CONFIG_BUG -#define HAVE_ARCH_BUG -#define BUG() do { \ - dump_bfin_trace_buffer(); \ - printk(KERN_EMERG "BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \ - panic("BUG!"); \ -} while (0) +#define BFIN_BUG_OPCODE 0xefcd + +#ifdef CONFIG_DEBUG_BUGVERBOSE + +#define _BUG_OR_WARN(flags) \ + asm volatile( \ + "1: .hword %0\n" \ + " .section __bug_table,\"a\",@progbits\n" \ + "2: .long 1b\n" \ + " .long %1\n" \ + " .short %2\n" \ + " .short %3\n" \ + " .org 2b + %4\n" \ + " .previous" \ + : \ + : "i"(BFIN_BUG_OPCODE), "i"(__FILE__), \ + "i"(__LINE__), "i"(flags), \ + "i"(sizeof(struct bug_entry))) + +#else + +#define _BUG_OR_WARN(flags) \ + asm volatile( \ + "1: .hword %0\n" \ + " .section __bug_table,\"a\",@progbits\n" \ + "2: .long 1b\n" \ + " .short %1\n" \ + " .org 2b + %2\n" \ + " .previous" \ + : \ + : "i"(BFIN_BUG_OPCODE), "i"(flags), \ + "i"(sizeof(struct bug_entry))) + +#endif /* CONFIG_DEBUG_BUGVERBOSE */ + +#define BUG() \ + do { \ + _BUG_OR_WARN(0); \ + for (;;); \ + } while (0) + +#define WARN_ON(condition) \ + ({ \ + int __ret_warn_on = !!(condition); \ + if (unlikely(__ret_warn_on)) \ + _BUG_OR_WARN(BUGFLAG_WARNING); \ + unlikely(__ret_warn_on); \ + }) + +#define HAVE_ARCH_BUG +#define HAVE_ARCH_WARN_ON #endif diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h index 86637814cf25..2ef669ed9222 100644 --- a/arch/blackfin/include/asm/cache.h +++ b/arch/blackfin/include/asm/cache.h @@ -34,9 +34,13 @@ #define L1_CACHE_SHIFT_MAX 5 #if defined(CONFIG_SMP) && \ - !defined(CONFIG_BFIN_CACHE_COHERENT) && \ - defined(CONFIG_BFIN_DCACHE) -#define __ARCH_SYNC_CORE_DCACHE + !defined(CONFIG_BFIN_CACHE_COHERENT) +# if defined(CONFIG_BFIN_ICACHE) +# define __ARCH_SYNC_CORE_ICACHE +# endif +# if defined(CONFIG_BFIN_DCACHE) +# define __ARCH_SYNC_CORE_DCACHE +# endif #ifndef __ASSEMBLY__ asmlinkage void __raw_smp_mark_barrier_asm(void); asmlinkage void __raw_smp_check_barrier_asm(void); @@ -51,6 +55,7 @@ static inline void smp_check_barrier(void) } void resync_core_dcache(void); +void resync_core_icache(void); #endif #endif diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h index 94697f0f6f40..5c17dee53b5d 100644 --- a/arch/blackfin/include/asm/cacheflush.h +++ b/arch/blackfin/include/asm/cacheflush.h @@ -37,6 +37,7 @@ extern void blackfin_dcache_flush_range(unsigned long start_address, unsigned lo extern void blackfin_dcache_invalidate_range(unsigned long start_address, unsigned long end_address); extern void blackfin_dflush_page(void *page); extern void blackfin_invalidate_entire_dcache(void); +extern void blackfin_invalidate_entire_icache(void); #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) @@ -97,7 +98,7 @@ do { memcpy(dst, src, len); \ extern unsigned long reserved_mem_dcache_on; extern unsigned long reserved_mem_icache_on; -static inline int bfin_addr_dcachable(unsigned long addr) +static inline int bfin_addr_dcacheable(unsigned long addr) { #ifdef CONFIG_BFIN_DCACHE if (addr < (_ramend - DMA_UNCACHED_REGION)) diff --git a/arch/blackfin/include/asm/cpu.h b/arch/blackfin/include/asm/cpu.h index c2594ef877f6..565b8136855e 100644 --- a/arch/blackfin/include/asm/cpu.h +++ b/arch/blackfin/include/asm/cpu.h @@ -34,6 +34,7 @@ struct blackfin_cpudata { unsigned int dmemctl; unsigned long loops_per_jiffy; unsigned long dcache_invld_count; + unsigned long icache_invld_count; }; DECLARE_PER_CPU(struct blackfin_cpudata, cpu_data); diff --git a/arch/blackfin/include/asm/ftrace.h b/arch/blackfin/include/asm/ftrace.h index 40a8c178f10d..8643680f0f78 100644 --- a/arch/blackfin/include/asm/ftrace.h +++ b/arch/blackfin/include/asm/ftrace.h @@ -1 +1,13 @@ -/* empty */ +/* + * Blackfin ftrace code + * + * Copyright 2009 Analog Devices Inc. + * Licensed under the GPL-2 or later. + */ + +#ifndef __ASM_BFIN_FTRACE_H__ +#define __ASM_BFIN_FTRACE_H__ + +#define MCOUNT_INSN_SIZE 8 /* sizeof mcount call: LINK + CALL */ + +#endif diff --git a/arch/blackfin/include/asm/ipipe.h b/arch/blackfin/include/asm/ipipe.h index 51d0bf5e2899..bbe1c3726b69 100644 --- a/arch/blackfin/include/asm/ipipe.h +++ b/arch/blackfin/include/asm/ipipe.h @@ -35,10 +35,10 @@ #include <asm/atomic.h> #include <asm/traps.h> -#define IPIPE_ARCH_STRING "1.9-01" +#define IPIPE_ARCH_STRING "1.10-00" #define IPIPE_MAJOR_NUMBER 1 -#define IPIPE_MINOR_NUMBER 9 -#define IPIPE_PATCH_NUMBER 1 +#define IPIPE_MINOR_NUMBER 10 +#define IPIPE_PATCH_NUMBER 0 #ifdef CONFIG_SMP #error "I-pipe/blackfin: SMP not implemented" @@ -54,10 +54,11 @@ do { \ #define task_hijacked(p) \ ({ \ - int __x__ = ipipe_current_domain != ipipe_root_domain; \ - /* We would need to clear the SYNC flag for the root domain */ \ - /* over the current processor in SMP mode. */ \ - local_irq_enable_hw(); __x__; \ + int __x__ = __ipipe_root_domain_p; \ + __clear_bit(IPIPE_SYNC_FLAG, &ipipe_root_cpudom_var(status)); \ + if (__x__) \ + local_irq_enable_hw(); \ + !__x__; \ }) struct ipipe_domain; @@ -179,23 +180,24 @@ static inline unsigned long __ipipe_ffnz(unsigned long ul) #define __ipipe_run_isr(ipd, irq) \ do { \ - if (ipd == ipipe_root_domain) { \ + if (!__ipipe_pipeline_head_p(ipd)) \ local_irq_enable_hw(); \ - if (ipipe_virtual_irq_p(irq)) \ + if (ipd == ipipe_root_domain) { \ + if (unlikely(ipipe_virtual_irq_p(irq))) { \ + irq_enter(); \ ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \ - else \ + irq_exit(); \ + } else \ ipd->irqs[irq].handler(irq, &__raw_get_cpu_var(__ipipe_tick_regs)); \ - local_irq_disable_hw(); \ } else { \ __clear_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \ - local_irq_enable_nohead(ipd); \ ipd->irqs[irq].handler(irq, ipd->irqs[irq].cookie); \ /* Attempt to exit the outer interrupt level before \ * starting the deferred IRQ processing. */ \ - local_irq_disable_nohead(ipd); \ __ipipe_run_irqtail(); \ __set_bit(IPIPE_SYNC_FLAG, &ipipe_cpudom_var(ipd, status)); \ } \ + local_irq_disable_hw(); \ } while (0) #define __ipipe_syscall_watched_p(p, sc) \ diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h index 7645e85a5f6f..400bdd52ce87 100644 --- a/arch/blackfin/include/asm/irq.h +++ b/arch/blackfin/include/asm/irq.h @@ -17,270 +17,17 @@ #ifndef _BFIN_IRQ_H_ #define _BFIN_IRQ_H_ -/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h>*/ -#include <mach/irq.h> -#include <asm/pda.h> -#include <asm/processor.h> - -#ifdef CONFIG_SMP -/* Forward decl needed due to cdef inter dependencies */ -static inline uint32_t __pure bfin_dspid(void); -# define blackfin_core_id() (bfin_dspid() & 0xff) -# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask -#else -extern unsigned long bfin_irq_flags; -#endif - -#ifdef CONFIG_IPIPE - -#include <linux/ipipe_trace.h> +#include <linux/irqflags.h> -void __ipipe_unstall_root(void); - -void __ipipe_restore_root(unsigned long flags); - -#ifdef CONFIG_DEBUG_HWERR -# define __all_masked_irq_flags 0x3f -# define __save_and_cli_hw(x) \ - __asm__ __volatile__( \ - "cli %0;" \ - "sti %1;" \ - : "=&d"(x) \ - : "d" (0x3F) \ - ) -#else -# define __all_masked_irq_flags 0x1f -# define __save_and_cli_hw(x) \ - __asm__ __volatile__( \ - "cli %0;" \ - : "=&d"(x) \ - ) -#endif - -#define irqs_enabled_from_flags_hw(x) ((x) != __all_masked_irq_flags) -#define raw_irqs_disabled_flags(flags) (!irqs_enabled_from_flags_hw(flags)) -#define local_test_iflag_hw(x) irqs_enabled_from_flags_hw(x) - -#define local_save_flags(x) \ - do { \ - (x) = __ipipe_test_root() ? \ - __all_masked_irq_flags : bfin_irq_flags; \ - barrier(); \ - } while (0) - -#define local_irq_save(x) \ - do { \ - (x) = __ipipe_test_and_stall_root() ? \ - __all_masked_irq_flags : bfin_irq_flags; \ - barrier(); \ - } while (0) - -static inline void local_irq_restore(unsigned long x) -{ - barrier(); - __ipipe_restore_root(x == __all_masked_irq_flags); -} - -#define local_irq_disable() \ - do { \ - __ipipe_stall_root(); \ - barrier(); \ - } while (0) - -static inline void local_irq_enable(void) -{ - barrier(); - __ipipe_unstall_root(); -} - -#define irqs_disabled() __ipipe_test_root() - -#define local_save_flags_hw(x) \ - __asm__ __volatile__( \ - "cli %0;" \ - "sti %0;" \ - : "=d"(x) \ - ) - -#define irqs_disabled_hw() \ - ({ \ - unsigned long flags; \ - local_save_flags_hw(flags); \ - !irqs_enabled_from_flags_hw(flags); \ - }) - -static inline unsigned long raw_mangle_irq_bits(int virt, unsigned long real) -{ - /* Merge virtual and real interrupt mask bits into a single - 32bit word. */ - return (real & ~(1 << 31)) | ((virt != 0) << 31); -} - -static inline int raw_demangle_irq_bits(unsigned long *x) -{ - int virt = (*x & (1 << 31)) != 0; - *x &= ~(1L << 31); - return virt; -} - -#ifdef CONFIG_IPIPE_TRACE_IRQSOFF - -#define local_irq_disable_hw() \ - do { \ - int _tmp_dummy; \ - if (!irqs_disabled_hw()) \ - ipipe_trace_begin(0x80000000); \ - __asm__ __volatile__ ("cli %0;" : "=d" (_tmp_dummy) : ); \ - } while (0) - -#define local_irq_enable_hw() \ - do { \ - if (irqs_disabled_hw()) \ - ipipe_trace_end(0x80000000); \ - __asm__ __volatile__ ("sti %0;" : : "d"(bfin_irq_flags)); \ - } while (0) - -#define local_irq_save_hw(x) \ - do { \ - __save_and_cli_hw(x); \ - if (local_test_iflag_hw(x)) \ - ipipe_trace_begin(0x80000001); \ - } while (0) - -#define local_irq_restore_hw(x) \ - do { \ - if (local_test_iflag_hw(x)) { \ - ipipe_trace_end(0x80000001); \ - local_irq_enable_hw_notrace(); \ - } \ - } while (0) - -#define local_irq_disable_hw_notrace() \ - do { \ - int _tmp_dummy; \ - __asm__ __volatile__ ("cli %0;" : "=d" (_tmp_dummy) : ); \ - } while (0) - -#define local_irq_enable_hw_notrace() \ - __asm__ __volatile__( \ - "sti %0;" \ - : \ - : "d"(bfin_irq_flags) \ - ) - -#define local_irq_save_hw_notrace(x) __save_and_cli_hw(x) - -#define local_irq_restore_hw_notrace(x) \ - do { \ - if (local_test_iflag_hw(x)) \ - local_irq_enable_hw_notrace(); \ - } while (0) - -#else /* CONFIG_IPIPE_TRACE_IRQSOFF */ - -#define local_irq_enable_hw() \ - __asm__ __volatile__( \ - "sti %0;" \ - : \ - : "d"(bfin_irq_flags) \ - ) - -#define local_irq_disable_hw() \ - do { \ - int _tmp_dummy; \ - __asm__ __volatile__ ( \ - "cli %0;" \ - : "=d" (_tmp_dummy)); \ - } while (0) - -#define local_irq_restore_hw(x) \ - do { \ - if (irqs_enabled_from_flags_hw(x)) \ - local_irq_enable_hw(); \ - } while (0) - -#define local_irq_save_hw(x) __save_and_cli_hw(x) - -#define local_irq_disable_hw_notrace() local_irq_disable_hw() -#define local_irq_enable_hw_notrace() local_irq_enable_hw() -#define local_irq_save_hw_notrace(x) local_irq_save_hw(x) -#define local_irq_restore_hw_notrace(x) local_irq_restore_hw(x) - -#endif /* CONFIG_IPIPE_TRACE_IRQSOFF */ - -#else /* !CONFIG_IPIPE */ - -/* - * Interrupt configuring macros. - */ -#define local_irq_disable() \ - do { \ - int __tmp_dummy; \ - __asm__ __volatile__( \ - "cli %0;" \ - : "=d" (__tmp_dummy) \ - ); \ - } while (0) - -#define local_irq_enable() \ - __asm__ __volatile__( \ - "sti %0;" \ - : \ - : "d" (bfin_irq_flags) \ - ) - -#ifdef CONFIG_DEBUG_HWERR -# define __save_and_cli(x) \ - __asm__ __volatile__( \ - "cli %0;" \ - "sti %1;" \ - : "=&d" (x) \ - : "d" (0x3F) \ - ) -#else -# define __save_and_cli(x) \ - __asm__ __volatile__( \ - "cli %0;" \ - : "=&d" (x) \ - ) -#endif - -#define local_save_flags(x) \ - __asm__ __volatile__( \ - "cli %0;" \ - "sti %0;" \ - : "=d" (x) \ - ) - -#ifdef CONFIG_DEBUG_HWERR -#define irqs_enabled_from_flags(x) (((x) & ~0x3f) != 0) -#else -#define irqs_enabled_from_flags(x) ((x) != 0x1f) -#endif - -#define local_irq_restore(x) \ - do { \ - if (irqs_enabled_from_flags(x)) \ - local_irq_enable(); \ - } while (0) - -/* For spinlocks etc */ -#define local_irq_save(x) __save_and_cli(x) - -#define irqs_disabled() \ -({ \ - unsigned long flags; \ - local_save_flags(flags); \ - !irqs_enabled_from_flags(flags); \ -}) - -#define local_irq_save_hw(x) local_irq_save(x) -#define local_irq_restore_hw(x) local_irq_restore(x) -#define local_irq_enable_hw() local_irq_enable() -#define local_irq_disable_hw() local_irq_disable() -#define irqs_disabled_hw() irqs_disabled() +/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h> */ +#include <mach/irq.h> -#endif /* !CONFIG_IPIPE */ +/* Xenomai IPIPE helpers */ +#define local_irq_restore_hw(x) local_irq_restore(x) +#define local_irq_save_hw(x) local_irq_save(x) +#define local_irq_enable_hw(x) local_irq_enable(x) +#define local_irq_disable_hw(x) local_irq_disable(x) +#define irqs_disabled_hw(x) irqs_disabled(x) #if ANOMALY_05000244 && defined(CONFIG_BFIN_ICACHE) # define NOP_PAD_ANOMALY_05000244 "nop; nop;" diff --git a/arch/blackfin/include/asm/irqflags.h b/arch/blackfin/include/asm/irqflags.h new file mode 100644 index 000000000000..139cba4651b1 --- /dev/null +++ b/arch/blackfin/include/asm/irqflags.h @@ -0,0 +1,63 @@ +/* + * interface to Blackfin CEC + * + * Copyright 2009 Analog Devices Inc. + * Licensed under the GPL-2 or later. + */ + +#ifndef __ASM_BFIN_IRQFLAGS_H__ +#define __ASM_BFIN_IRQFLAGS_H__ + +#ifdef CONFIG_SMP +# include <asm/pda.h> +# include <asm/processor.h> +/* Forward decl needed due to cdef inter dependencies */ +static inline uint32_t __pure bfin_dspid(void); +# define blackfin_core_id() (bfin_dspid() & 0xff) +# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask +#else +extern unsigned long bfin_irq_flags; +#endif + +static inline void bfin_sti(unsigned long flags) +{ + asm volatile("sti %0;" : : "d" (flags)); +} + +static inline unsigned long bfin_cli(void) +{ + unsigned long flags; + asm volatile("cli %0;" : "=d" (flags)); + return flags; +} + +static inline void raw_local_irq_disable(void) +{ + bfin_cli(); +} +static inline void raw_local_irq_enable(void) +{ + bfin_sti(bfin_irq_flags); +} + +#define raw_local_save_flags(flags) do { (flags) = bfin_read_IMASK(); } while (0) + +#define raw_irqs_disabled_flags(flags) (((flags) & ~0x3f) == 0) + +static inline void raw_local_irq_restore(unsigned long flags) +{ + if (!raw_irqs_disabled_flags(flags)) + raw_local_irq_enable(); +} + +static inline unsigned long __raw_local_irq_save(void) +{ + unsigned long flags = bfin_cli(); +#ifdef CONFIG_DEBUG_HWERR + bfin_sti(0x3f); +#endif + return flags; +} +#define raw_local_irq_save(flags) do { (flags) = __raw_local_irq_save(); } while (0) + +#endif diff --git a/arch/blackfin/include/asm/kmap_types.h b/arch/blackfin/include/asm/kmap_types.h index e215f7104974..0a88622339ee 100644 --- a/arch/blackfin/include/asm/kmap_types.h +++ b/arch/blackfin/include/asm/kmap_types.h @@ -1,21 +1,6 @@ #ifndef _ASM_KMAP_TYPES_H #define _ASM_KMAP_TYPES_H -enum km_type { - KM_BOUNCE_READ, - KM_SKB_SUNRPC_DATA, - KM_SKB_DATA_SOFTIRQ, - KM_USER0, - KM_USER1, - KM_BIO_SRC_IRQ, - KM_BIO_DST_IRQ, - KM_PTE0, - KM_PTE1, - KM_IRQ0, - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, - KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> #endif diff --git a/arch/blackfin/include/asm/mutex-dec.h b/arch/blackfin/include/asm/mutex-dec.h deleted file mode 100644 index 0134151656af..000000000000 --- a/arch/blackfin/include/asm/mutex-dec.h +++ /dev/null @@ -1,112 +0,0 @@ -/* - * include/asm-generic/mutex-dec.h - * - * Generic implementation of the mutex fastpath, based on atomic - * decrement/increment. - */ -#ifndef _ASM_GENERIC_MUTEX_DEC_H -#define _ASM_GENERIC_MUTEX_DEC_H - -/** - * __mutex_fastpath_lock - try to take the lock by moving the count - * from 1 to a 0 value - * @count: pointer of type atomic_t - * @fail_fn: function to call if the original value was not 1 - * - * Change the count from 1 to a value lower than 1, and call <fail_fn> if - * it wasn't 1 originally. This function MUST leave the value lower than - * 1 even when the "1" assertion wasn't true. - */ -static inline void -__mutex_fastpath_lock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *)) -{ - if (unlikely(atomic_dec_return(count) < 0)) - fail_fn(count); - else - smp_mb(); -} - -/** - * __mutex_fastpath_lock_retval - try to take the lock by moving the count - * from 1 to a 0 value - * @count: pointer of type atomic_t - * @fail_fn: function to call if the original value was not 1 - * - * Change the count from 1 to a value lower than 1, and call <fail_fn> if - * it wasn't 1 originally. This function returns 0 if the fastpath succeeds, - * or anything the slow path function returns. - */ -static inline int -__mutex_fastpath_lock_retval(atomic_t *count, fastcall int (*fail_fn)(atomic_t *)) -{ - if (unlikely(atomic_dec_return(count) < 0)) - return fail_fn(count); - else { - smp_mb(); - return 0; - } -} - -/** - * __mutex_fastpath_unlock - try to promote the count from 0 to 1 - * @count: pointer of type atomic_t - * @fail_fn: function to call if the original value was not 0 - * - * Try to promote the count from 0 to 1. If it wasn't 0, call <fail_fn>. - * In the failure case, this function is allowed to either set the value to - * 1, or to set it to a value lower than 1. - * - * If the implementation sets it to a value of lower than 1, then the - * __mutex_slowpath_needs_to_unlock() macro needs to return 1, it needs - * to return 0 otherwise. - */ -static inline void -__mutex_fastpath_unlock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *)) -{ - smp_mb(); - if (unlikely(atomic_inc_return(count) <= 0)) - fail_fn(count); -} - -#define __mutex_slowpath_needs_to_unlock() 1 - -/** - * __mutex_fastpath_trylock - try to acquire the mutex, without waiting - * - * @count: pointer of type atomic_t - * @fail_fn: fallback function - * - * Change the count from 1 to a value lower than 1, and return 0 (failure) - * if it wasn't 1 originally, or return 1 (success) otherwise. This function - * MUST leave the value lower than 1 even when the "1" assertion wasn't true. - * Additionally, if the value was < 0 originally, this function must not leave - * it to 0 on failure. - * - * If the architecture has no effective trylock variant, it should call the - * <fail_fn> spinlock-based trylock variant unconditionally. - */ -static inline int -__mutex_fastpath_trylock(atomic_t *count, int (*fail_fn)(atomic_t *)) -{ - /* - * We have two variants here. The cmpxchg based one is the best one - * because it never induce a false contention state. It is included - * here because architectures using the inc/dec algorithms over the - * xchg ones are much more likely to support cmpxchg natively. - * - * If not we fall back to the spinlock based variant - that is - * just as efficient (and simpler) as a 'destructive' probing of - * the mutex state would be. - */ -#ifdef __HAVE_ARCH_CMPXCHG - if (likely(atomic_cmpxchg(count, 1, 0) == 1)) { - smp_mb(); - return 1; - } - return 0; -#else - return fail_fn(count); -#endif -} - -#endif diff --git a/arch/blackfin/include/asm/sections.h b/arch/blackfin/include/asm/sections.h index 1443c3353a8c..e7fd0ecd73f7 100644 --- a/arch/blackfin/include/asm/sections.h +++ b/arch/blackfin/include/asm/sections.h @@ -4,4 +4,15 @@ /* nothing to see, move along */ #include <asm-generic/sections.h> +/* only used when MTD_UCLINUX */ +extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size; + +extern unsigned long _ramstart, _ramend, _rambase; +extern unsigned long memory_start, memory_end, physical_mem_end; + +extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[], + _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[], + _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[], + _ebss_l2[], _l2_lma_start[]; + #endif diff --git a/arch/blackfin/include/asm/system.h b/arch/blackfin/include/asm/system.h index a4c8254bec55..294dbda24164 100644 --- a/arch/blackfin/include/asm/system.h +++ b/arch/blackfin/include/asm/system.h @@ -35,10 +35,10 @@ #define _BLACKFIN_SYSTEM_H #include <linux/linkage.h> -#include <linux/compiler.h> +#include <linux/irqflags.h> #include <mach/anomaly.h> +#include <asm/cache.h> #include <asm/pda.h> -#include <asm/processor.h> #include <asm/irq.h> /* diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h index cf5066d3efd2..da35133c171d 100644 --- a/arch/blackfin/include/asm/unistd.h +++ b/arch/blackfin/include/asm/unistd.h @@ -380,8 +380,9 @@ #define __NR_inotify_init1 365 #define __NR_preadv 366 #define __NR_pwritev 367 +#define __NR_rt_tgsigqueueinfo 368 -#define __NR_syscall 368 +#define __NR_syscall 369 #define NR_syscalls __NR_syscall /* Old optional stuff no one actually uses */ diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile index fd4d4328a0f2..3731088e181b 100644 --- a/arch/blackfin/kernel/Makefile +++ b/arch/blackfin/kernel/Makefile @@ -15,6 +15,10 @@ else obj-y += time.o endif +obj-$(CONFIG_FUNCTION_TRACER) += ftrace-entry.o +obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o +CFLAGS_REMOVE_ftrace.o = -pg + obj-$(CONFIG_IPIPE) += ipipe.o obj-$(CONFIG_IPIPE_TRACE_MCOUNT) += mcount.o obj-$(CONFIG_BFIN_GPTIMERS) += gptimers.o @@ -23,6 +27,7 @@ obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_KGDB) += kgdb.o obj-$(CONFIG_KGDB_TESTS) += kgdb_test.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o +obj-$(CONFIG_STACKTRACE) += stacktrace.o # the kgdb test puts code into L2 and without linker # relaxation, we need to force long calls to/from it diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c index 763ed84ba459..e0bf8cc06907 100644 --- a/arch/blackfin/kernel/bfin_dma_5xx.c +++ b/arch/blackfin/kernel/bfin_dma_5xx.c @@ -453,10 +453,10 @@ void *dma_memcpy(void *pdst, const void *psrc, size_t size) unsigned long src = (unsigned long)psrc; size_t bulk, rest; - if (bfin_addr_dcachable(src)) + if (bfin_addr_dcacheable(src)) blackfin_dcache_flush_range(src, src + size); - if (bfin_addr_dcachable(dst)) + if (bfin_addr_dcacheable(dst)) blackfin_dcache_invalidate_range(dst, dst + size); bulk = size & ~0xffff; diff --git a/arch/blackfin/kernel/bfin_ksyms.c b/arch/blackfin/kernel/bfin_ksyms.c index 53e893ff708a..aa05e638fb7c 100644 --- a/arch/blackfin/kernel/bfin_ksyms.c +++ b/arch/blackfin/kernel/bfin_ksyms.c @@ -103,3 +103,8 @@ EXPORT_SYMBOL(__raw_smp_mark_barrier_asm); EXPORT_SYMBOL(__raw_smp_check_barrier_asm); #endif #endif + +#ifdef CONFIG_FUNCTION_TRACER +extern void _mcount(void); +EXPORT_SYMBOL(_mcount); +#endif diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c index 87463ce87f5a..784923e52a9a 100644 --- a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c +++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c @@ -151,7 +151,7 @@ static noinline int dcplb_miss(unsigned int cpu) d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB; #ifdef CONFIG_BFIN_DCACHE - if (bfin_addr_dcachable(addr)) { + if (bfin_addr_dcacheable(addr)) { d_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND; #ifdef CONFIG_BFIN_WT d_data |= CPLB_L1_AOW | CPLB_WT; diff --git a/arch/blackfin/kernel/cplb-nompu/cplbmgr.c b/arch/blackfin/kernel/cplb-nompu/cplbmgr.c index 8cbb47c7b663..12b030842fdb 100644 --- a/arch/blackfin/kernel/cplb-nompu/cplbmgr.c +++ b/arch/blackfin/kernel/cplb-nompu/cplbmgr.c @@ -28,6 +28,7 @@ #include <asm/cplbinit.h> #include <asm/cplb.h> #include <asm/mmu_context.h> +#include <asm/traps.h> /* * WARNING @@ -100,28 +101,6 @@ static inline void write_icplb_data(int cpu, int idx, unsigned long data, #endif } -/* - * Given the contents of the status register, return the index of the - * CPLB that caused the fault. - */ -static inline int faulting_cplb_index(int status) -{ - int signbits = __builtin_bfin_norm_fr1x32(status & 0xFFFF); - return 30 - signbits; -} - -/* - * Given the contents of the status register and the DCPLB_DATA contents, - * return true if a write access should be permitted. - */ -static inline int write_permitted(int status, unsigned long data) -{ - if (status & FAULT_USERSUPV) - return !!(data & CPLB_SUPV_WR); - else - return !!(data & CPLB_USER_WR); -} - /* Counters to implement round-robin replacement. */ static int icplb_rr_index[NR_CPUS] PDT_ATTR; static int dcplb_rr_index[NR_CPUS] PDT_ATTR; @@ -245,43 +224,16 @@ MGR_ATTR static int dcplb_miss(int cpu) return CPLB_RELOADED; } -MGR_ATTR static noinline int dcplb_protection_fault(int cpu) -{ - int status = bfin_read_DCPLB_STATUS(); - - nr_dcplb_prot[cpu]++; - - if (likely(status & FAULT_RW)) { - int idx = faulting_cplb_index(status); - unsigned long regaddr = DCPLB_DATA0 + idx * 4; - unsigned long data = bfin_read32(regaddr); - - /* Check if fault is to dirty a clean page */ - if (!(data & CPLB_WT) && !(data & CPLB_DIRTY) && - write_permitted(status, data)) { - - dcplb_tbl[cpu][idx].data = data; - bfin_write32(regaddr, data); - return CPLB_RELOADED; - } - } - - return CPLB_PROT_VIOL; -} - MGR_ATTR int cplb_hdr(int seqstat, struct pt_regs *regs) { int cause = seqstat & 0x3f; unsigned int cpu = smp_processor_id(); switch (cause) { - case 0x2C: + case VEC_CPLB_I_M: return icplb_miss(cpu); - case 0x26: + case VEC_CPLB_M: return dcplb_miss(cpu); default: - if (unlikely(cause == 0x23)) - return dcplb_protection_fault(cpu); - return CPLB_UNKNOWN_ERR; } } diff --git a/arch/blackfin/kernel/early_printk.c b/arch/blackfin/kernel/early_printk.c index 3302719173ca..2ab56811841c 100644 --- a/arch/blackfin/kernel/early_printk.c +++ b/arch/blackfin/kernel/early_printk.c @@ -202,11 +202,15 @@ asmlinkage void __init init_early_exception_vectors(void) asmlinkage void __init early_trap_c(struct pt_regs *fp, void *retaddr) { /* This can happen before the uart is initialized, so initialize - * the UART now + * the UART now (but only if we are running on the processor we think + * we are compiled for - otherwise we write to MMRs that don't exist, + * and cause other problems. Nothing comes out the UART, but it does + * end up in the __buf_log. */ - if (likely(early_console == NULL)) + if (likely(early_console == NULL) && CPUID == bfin_cpuid()) setup_early_printk(DEFAULT_EARLY_PORT); + printk(KERN_EMERG "Early panic\n"); dump_bfin_mem(fp); show_regs(fp); dump_bfin_trace_buffer(); diff --git a/arch/blackfin/kernel/ftrace-entry.S b/arch/blackfin/kernel/ftrace-entry.S new file mode 100644 index 000000000000..6980b7a0615d --- /dev/null +++ b/arch/blackfin/kernel/ftrace-entry.S @@ -0,0 +1,140 @@ +/* + * mcount and friends -- ftrace stuff + * + * Copyright (C) 2009 Analog Devices Inc. + * Licensed under the GPL-2 or later. + */ + +#include <linux/linkage.h> +#include <asm/ftrace.h> + +.text + +/* GCC will have called us before setting up the function prologue, so we + * can clobber the normal scratch registers, but we need to make sure to + * save/restore the registers used for argument passing (R0-R2) in case + * the profiled function is using them. With data registers, R3 is the + * only one we can blow away. With pointer registers, we have P0-P2. + * + * Upon entry, the RETS will point to the top of the current profiled + * function. And since GCC setup the frame for us, the previous function + * will be waiting there. mmmm pie. + */ +ENTRY(__mcount) + /* save third function arg early so we can do testing below */ + [--sp] = r2; + + /* load the function pointer to the tracer */ + p0.l = _ftrace_trace_function; + p0.h = _ftrace_trace_function; + r3 = [p0]; + + /* optional micro optimization: don't call the stub tracer */ + r2.l = _ftrace_stub; + r2.h = _ftrace_stub; + cc = r2 == r3; + if ! cc jump .Ldo_trace; + +#ifdef CONFIG_FUNCTION_GRAPH_TRACER + /* if the ftrace_graph_return function pointer is not set to + * the ftrace_stub entry, call prepare_ftrace_return(). + */ + p0.l = _ftrace_graph_return; + p0.h = _ftrace_graph_return; + r3 = [p0]; + cc = r2 == r3; + if ! cc jump _ftrace_graph_caller; + + /* similarly, if the ftrace_graph_entry function pointer is not + * set to the ftrace_graph_entry_stub entry, ... + */ + p0.l = _ftrace_graph_entry; + p0.h = _ftrace_graph_entry; + r2.l = _ftrace_graph_entry_stub; + r2.h = _ftrace_graph_entry_stub; + r3 = [p0]; + cc = r2 == r3; + if ! cc jump _ftrace_graph_caller; +#endif + + r2 = [sp++]; + rts; + +.Ldo_trace: + + /* save first/second function arg and the return register */ + [--sp] = r0; + [--sp] = r1; + [--sp] = rets; + + /* setup the tracer function */ + p0 = r3; + + /* tracer(ulong frompc, ulong selfpc): + * frompc: the pc that did the call to ... + * selfpc: ... this location + * the selfpc itself will need adjusting for the mcount call + */ + r1 = rets; + r0 = [fp + 4]; + r1 += -MCOUNT_INSN_SIZE; + + /* call the tracer */ + call (p0); + + /* restore state and get out of dodge */ +.Lfinish_trace: + rets = [sp++]; + r1 = [sp++]; + r0 = [sp++]; + r2 = [sp++]; + +.globl _ftrace_stub +_ftrace_stub: + rts; +ENDPROC(__mcount) + +#ifdef CONFIG_FUNCTION_GRAPH_TRACER +/* The prepare_ftrace_return() function is similar to the trace function + * except it takes a pointer to the location of the frompc. This is so + * the prepare_ftrace_return() can hijack it temporarily for probing + * purposes. + */ +ENTRY(_ftrace_graph_caller) + /* save first/second function arg and the return register */ + [--sp] = r0; + [--sp] = r1; + [--sp] = rets; + + r0 = fp; + r1 = rets; + r0 += 4; + r1 += -MCOUNT_INSN_SIZE; + call _prepare_ftrace_return; + + jump .Lfinish_trace; +ENDPROC(_ftrace_graph_caller) + +/* Undo the rewrite caused by ftrace_graph_caller(). The common function + * ftrace_return_to_handler() will return the original rets so we can + * restore it and be on our way. + */ +ENTRY(_return_to_handler) + /* make sure original return values are saved */ + [--sp] = p0; + [--sp] = r0; + [--sp] = r1; + + /* get original return address */ + call _ftrace_return_to_handler; + rets = r0; + + /* anomaly 05000371 - make sure we have at least three instructions + * between rets setting and the return + */ + r1 = [sp++]; + r0 = [sp++]; + p0 = [sp++]; + rts; +ENDPROC(_return_to_handler) +#endif diff --git a/arch/blackfin/kernel/ftrace.c b/arch/blackfin/kernel/ftrace.c new file mode 100644 index 000000000000..905bfc40a00b --- /dev/null +++ b/arch/blackfin/kernel/ftrace.c @@ -0,0 +1,42 @@ +/* + * ftrace graph code + * + * Copyright (C) 2009 Analog Devices Inc. + * Licensed under the GPL-2 or later. + */ + +#include <linux/ftrace.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <asm/atomic.h> + +#ifdef CONFIG_FUNCTION_GRAPH_TRACER + +/* + * Hook the return address and push it in the stack of return addrs + * in current thread info. + */ +void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr) +{ + struct ftrace_graph_ent trace; + unsigned long return_hooker = (unsigned long)&return_to_handler; + + if (unlikely(atomic_read(¤t->tracing_graph_pause))) + return; + + if (ftrace_push_return_trace(*parent, self_addr, &trace.depth) == -EBUSY) + return; + + trace.func = self_addr; + + /* Only trace if the calling function expects to */ + if (!ftrace_graph_entry(&trace)) { + current->curr_ret_stack--; + return; + } + + /* all is well in the world ! hijack RETS ... */ + *parent = return_hooker; +} + +#endif diff --git a/arch/blackfin/kernel/init_task.c b/arch/blackfin/kernel/init_task.c index 2c228c020978..c26c34de9f3c 100644 --- a/arch/blackfin/kernel/init_task.c +++ b/arch/blackfin/kernel/init_task.c @@ -35,10 +35,6 @@ 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); - /* * Initial task structure. * diff --git a/arch/blackfin/kernel/ipipe.c b/arch/blackfin/kernel/ipipe.c index 5fc424803a17..d8cde1fc5cb9 100644 --- a/arch/blackfin/kernel/ipipe.c +++ b/arch/blackfin/kernel/ipipe.c @@ -99,7 +99,7 @@ void __ipipe_handle_irq(unsigned irq, struct pt_regs *regs) * interrupt. */ m_ack = (regs == NULL || irq == IRQ_SYSTMR || irq == IRQ_CORETMR); - this_domain = ipipe_current_domain; + this_domain = __ipipe_current_domain; if (unlikely(test_bit(IPIPE_STICKY_FLAG, &this_domain->irqs[irq].control))) head = &this_domain->p_link; @@ -212,7 +212,9 @@ void __ipipe_unstall_root_raw(void) int __ipipe_syscall_root(struct pt_regs *regs) { + struct ipipe_percpu_domain_data *p; unsigned long flags; + int ret; /* * We need to run the IRQ tail hook whenever we don't @@ -231,29 +233,31 @@ int __ipipe_syscall_root(struct pt_regs *regs) /* * This routine either returns: * 0 -- if the syscall is to be passed to Linux; - * 1 -- if the syscall should not be passed to Linux, and no + * >0 -- if the syscall should not be passed to Linux, and no * tail work should be performed; - * -1 -- if the syscall should not be passed to Linux but the + * <0 -- if the syscall should not be passed to Linux but the * tail work has to be performed (for handling signals etc). */ - if (__ipipe_event_monitored_p(IPIPE_EVENT_SYSCALL) && - __ipipe_dispatch_event(IPIPE_EVENT_SYSCALL, regs) > 0) { - if (ipipe_root_domain_p && !in_atomic()) { - /* - * Sync pending VIRQs before _TIF_NEED_RESCHED - * is tested. - */ - local_irq_save_hw(flags); - if ((ipipe_root_cpudom_var(irqpend_himask) & IPIPE_IRQMASK_VIRT) != 0) - __ipipe_sync_pipeline(IPIPE_IRQMASK_VIRT); - local_irq_restore_hw(flags); - return -1; - } + if (!__ipipe_event_monitored_p(IPIPE_EVENT_SYSCALL)) + return 0; + + ret = __ipipe_dispatch_event(IPIPE_EVENT_SYSCALL, regs); + + local_irq_save_hw(flags); + + if (!__ipipe_root_domain_p) { + local_irq_restore_hw(flags); return 1; } - return 0; + p = ipipe_root_cpudom_ptr(); + if ((p->irqpend_himask & IPIPE_IRQMASK_VIRT) != 0) + __ipipe_sync_pipeline(IPIPE_IRQMASK_VIRT); + + local_irq_restore_hw(flags); + + return -ret; } unsigned long ipipe_critical_enter(void (*syncfn) (void)) @@ -329,9 +333,7 @@ asmlinkage void __ipipe_sync_root(void) void ___ipipe_sync_pipeline(unsigned long syncmask) { - struct ipipe_domain *ipd = ipipe_current_domain; - - if (ipd == ipipe_root_domain) { + if (__ipipe_root_domain_p) { if (test_bit(IPIPE_SYNCDEFER_FLAG, &ipipe_root_cpudom_var(status))) return; } diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index 80447f99c2b5..6454babdfaff 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -1098,7 +1098,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) CPUID, bfin_cpuid()); seq_printf(m, "model name\t: ADSP-%s %lu(MHz CCLK) %lu(MHz SCLK) (%s)\n" - "stepping\t: %d\n", + "stepping\t: %d ", cpu, cclk/1000000, sclk/1000000, #ifdef CONFIG_MPU "mpu on", @@ -1107,7 +1107,16 @@ static int show_cpuinfo(struct seq_file *m, void *v) #endif revid); - seq_printf(m, "cpu MHz\t\t: %lu.%03lu/%lu.%03lu\n", + if (bfin_revid() != bfin_compiled_revid()) { + if (bfin_compiled_revid() == -1) + seq_printf(m, "(Compiled for Rev none)"); + else if (bfin_compiled_revid() == 0xffff) + seq_printf(m, "(Compiled for Rev any)"); + else + seq_printf(m, "(Compiled for Rev %d)", bfin_compiled_revid()); + } + + seq_printf(m, "\ncpu MHz\t\t: %lu.%03lu/%lu.%03lu\n", cclk/1000000, cclk%1000000, sclk/1000000, sclk%1000000); seq_printf(m, "bogomips\t: %lu.%02lu\n" @@ -1172,6 +1181,9 @@ static int show_cpuinfo(struct seq_file *m, void *v) #ifdef __ARCH_SYNC_CORE_DCACHE seq_printf(m, "SMP Dcache Flushes\t: %lu\n\n", cpudata->dcache_invld_count); #endif +#ifdef __ARCH_SYNC_CORE_ICACHE + seq_printf(m, "SMP Icache Flushes\t: %lu\n\n", cpudata->icache_invld_count); +#endif #ifdef CONFIG_BFIN_ICACHE_LOCK switch ((cpudata->imemctl >> 3) & WAYALL_L) { case WAY0_L: diff --git a/arch/blackfin/kernel/stacktrace.c b/arch/blackfin/kernel/stacktrace.c new file mode 100644 index 000000000000..30301e1eace5 --- /dev/null +++ b/arch/blackfin/kernel/stacktrace.c @@ -0,0 +1,53 @@ +/* + * Blackfin stacktrace code (mostly copied from avr32) + * + * Copyright 2009 Analog Devices Inc. + * Licensed under the GPL-2 or later. + */ + +#include <linux/sched.h> +#include <linux/stacktrace.h> +#include <linux/thread_info.h> +#include <linux/module.h> + +register unsigned long current_frame_pointer asm("FP"); + +struct stackframe { + unsigned long fp; + unsigned long rets; +}; + +/* + * Save stack-backtrace addresses into a stack_trace buffer. + */ +void save_stack_trace(struct stack_trace *trace) +{ + unsigned long low, high; + unsigned long fp; + struct stackframe *frame; + int skip = trace->skip; + + low = (unsigned long)task_stack_page(current); + high = low + THREAD_SIZE; + fp = current_frame_pointer; + + while (fp >= low && fp <= (high - sizeof(*frame))) { + frame = (struct stackframe *)fp; + + if (skip) { + skip--; + } else { + trace->entries[trace->nr_entries++] = frame->rets; + if (trace->nr_entries >= trace->max_entries) + break; + } + + /* + * The next frame must be at a higher address than the + * current frame. + */ + low = fp + sizeof(*frame); + fp = frame->fp; + } +} +EXPORT_SYMBOL_GPL(save_stack_trace); diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c index aa76dfb0226e..d279552fe9b0 100644 --- a/arch/blackfin/kernel/traps.c +++ b/arch/blackfin/kernel/traps.c @@ -27,6 +27,7 @@ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#include <linux/bug.h> #include <linux/uaccess.h> #include <linux/interrupt.h> #include <linux/module.h> @@ -238,6 +239,11 @@ asmlinkage void double_fault_c(struct pt_regs *fp) } +static int kernel_mode_regs(struct pt_regs *regs) +{ + return regs->ipend & 0xffc0; +} + asmlinkage void trap_c(struct pt_regs *fp) { #ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON @@ -246,6 +252,7 @@ asmlinkage void trap_c(struct pt_regs *fp) #ifdef CONFIG_DEBUG_HUNT_FOR_ZERO unsigned int cpu = smp_processor_id(); #endif + const char *strerror = NULL; int sig = 0; siginfo_t info; unsigned long trapnr = fp->seqstat & SEQSTAT_EXCAUSE; @@ -259,27 +266,10 @@ asmlinkage void trap_c(struct pt_regs *fp) * double faults if the stack has become corrupt */ - /* If the fault was caused by a kernel thread, or interrupt handler - * we will kernel panic, so the system reboots. - * If KGDB is enabled, don't set this for kernel breakpoints - */ - - /* TODO: check to see if we are in some sort of deferred HWERR - * that we should be able to recover from, not kernel panic - */ - if ((bfin_read_IPEND() & 0xFFC0) && (trapnr != VEC_STEP) -#ifdef CONFIG_KGDB - && (trapnr != VEC_EXCPT02) +#ifndef CONFIG_KGDB + /* IPEND is skipped if KGDB isn't enabled (see entry code) */ + fp->ipend = bfin_read_IPEND(); #endif - ){ - console_verbose(); - oops_in_progress = 1; - } else if (current) { - if (current->mm == NULL) { - console_verbose(); - oops_in_progress = 1; - } - } /* trap_c() will be called for exceptions. During exceptions * processing, the pc value should be set with retx value. @@ -307,15 +297,15 @@ asmlinkage void trap_c(struct pt_regs *fp) sig = SIGTRAP; CHK_DEBUGGER_TRAP_MAYBE(); /* Check if this is a breakpoint in kernel space */ - if (fp->ipend & 0xffc0) - return; + if (kernel_mode_regs(fp)) + goto traps_done; else break; /* 0x03 - User Defined, userspace stack overflow */ case VEC_EXCPT03: info.si_code = SEGV_STACKFLOW; sig = SIGSEGV; - verbose_printk(KERN_NOTICE EXC_0x03(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x03(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x02 - KGDB initial connection and break signal trap */ @@ -324,7 +314,7 @@ asmlinkage void trap_c(struct pt_regs *fp) info.si_code = TRAP_ILLTRAP; sig = SIGTRAP; CHK_DEBUGGER_TRAP(); - return; + goto traps_done; #endif /* 0x04 - User Defined */ /* 0x05 - User Defined */ @@ -344,7 +334,7 @@ asmlinkage void trap_c(struct pt_regs *fp) case VEC_EXCPT04 ... VEC_EXCPT15: info.si_code = ILL_ILLPARAOP; sig = SIGILL; - verbose_printk(KERN_NOTICE EXC_0x04(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x04(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x10 HW Single step, handled here */ @@ -353,15 +343,15 @@ asmlinkage void trap_c(struct pt_regs *fp) sig = SIGTRAP; CHK_DEBUGGER_TRAP_MAYBE(); /* Check if this is a single step in kernel space */ - if (fp->ipend & 0xffc0) - return; + if (kernel_mode_regs(fp)) + goto traps_done; else break; /* 0x11 - Trace Buffer Full, handled here */ case VEC_OVFLOW: info.si_code = TRAP_TRACEFLOW; sig = SIGTRAP; - verbose_printk(KERN_NOTICE EXC_0x11(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x11(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x12 - Reserved, Caught by default */ @@ -381,37 +371,54 @@ asmlinkage void trap_c(struct pt_regs *fp) /* 0x20 - Reserved, Caught by default */ /* 0x21 - Undefined Instruction, handled here */ case VEC_UNDEF_I: +#ifdef CONFIG_BUG + if (kernel_mode_regs(fp)) { + switch (report_bug(fp->pc, fp)) { + case BUG_TRAP_TYPE_NONE: + break; + case BUG_TRAP_TYPE_WARN: + dump_bfin_trace_buffer(); + fp->pc += 2; + goto traps_done; + case BUG_TRAP_TYPE_BUG: + /* call to panic() will dump trace, and it is + * off at this point, so it won't be clobbered + */ + panic("BUG()"); + } + } +#endif info.si_code = ILL_ILLOPC; sig = SIGILL; - verbose_printk(KERN_NOTICE EXC_0x21(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x21(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x22 - Illegal Instruction Combination, handled here */ case VEC_ILGAL_I: info.si_code = ILL_ILLPARAOP; sig = SIGILL; - verbose_printk(KERN_NOTICE EXC_0x22(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x22(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x23 - Data CPLB protection violation, handled here */ case VEC_CPLB_VL: info.si_code = ILL_CPLB_VI; sig = SIGBUS; - verbose_printk(KERN_NOTICE EXC_0x23(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x23(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x24 - Data access misaligned, handled here */ case VEC_MISALI_D: info.si_code = BUS_ADRALN; sig = SIGBUS; - verbose_printk(KERN_NOTICE EXC_0x24(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x24(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x25 - Unrecoverable Event, handled here */ case VEC_UNCOV: info.si_code = ILL_ILLEXCPT; sig = SIGILL; - verbose_printk(KERN_NOTICE EXC_0x25(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x25(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x26 - Data CPLB Miss, normal case is handled in _cplb_hdr, @@ -419,7 +426,7 @@ asmlinkage void trap_c(struct pt_regs *fp) case VEC_CPLB_M: info.si_code = BUS_ADRALN; sig = SIGBUS; - verbose_printk(KERN_NOTICE EXC_0x26(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x26(KERN_NOTICE); break; /* 0x27 - Data CPLB Multiple Hits - Linux Trap Zero, handled here */ case VEC_CPLB_MHIT: @@ -427,10 +434,10 @@ asmlinkage void trap_c(struct pt_regs *fp) sig = SIGSEGV; #ifdef CONFIG_DEBUG_HUNT_FOR_ZERO if (cpu_pda[cpu].dcplb_fault_addr < FIXED_CODE_START) - verbose_printk(KERN_NOTICE "NULL pointer access\n"); + strerror = KERN_NOTICE "NULL pointer access\n"; else #endif - verbose_printk(KERN_NOTICE EXC_0x27(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x27(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x28 - Emulation Watchpoint, handled here */ @@ -440,8 +447,8 @@ asmlinkage void trap_c(struct pt_regs *fp) pr_debug(EXC_0x28(KERN_DEBUG)); CHK_DEBUGGER_TRAP_MAYBE(); /* Check if this is a watchpoint in kernel space */ - if (fp->ipend & 0xffc0) - return; + if (kernel_mode_regs(fp)) + goto traps_done; else break; #ifdef CONFIG_BF535 @@ -449,7 +456,7 @@ asmlinkage void trap_c(struct pt_regs *fp) case VEC_ISTRU_VL: /* ADSP-BF535 only (MH) */ info.si_code = BUS_OPFETCH; sig = SIGBUS; - verbose_printk(KERN_NOTICE "BF535: VEC_ISTRU_VL\n"); + strerror = KERN_NOTICE "BF535: VEC_ISTRU_VL\n"; CHK_DEBUGGER_TRAP_MAYBE(); break; #else @@ -459,21 +466,21 @@ asmlinkage void trap_c(struct pt_regs *fp) case VEC_MISALI_I: info.si_code = BUS_ADRALN; sig = SIGBUS; - verbose_printk(KERN_NOTICE EXC_0x2A(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x2A(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x2B - Instruction CPLB protection violation, handled here */ case VEC_CPLB_I_VL: info.si_code = ILL_CPLB_VI; sig = SIGBUS; - verbose_printk(KERN_NOTICE EXC_0x2B(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x2B(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x2C - Instruction CPLB miss, handled in _cplb_hdr */ case VEC_CPLB_I_M: info.si_code = ILL_CPLB_MISS; sig = SIGBUS; - verbose_printk(KERN_NOTICE EXC_0x2C(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x2C(KERN_NOTICE); break; /* 0x2D - Instruction CPLB Multiple Hits, handled here */ case VEC_CPLB_I_MHIT: @@ -481,17 +488,17 @@ asmlinkage void trap_c(struct pt_regs *fp) sig = SIGSEGV; #ifdef CONFIG_DEBUG_HUNT_FOR_ZERO if (cpu_pda[cpu].icplb_fault_addr < FIXED_CODE_START) - verbose_printk(KERN_NOTICE "Jump to NULL address\n"); + strerror = KERN_NOTICE "Jump to NULL address\n"; else #endif - verbose_printk(KERN_NOTICE EXC_0x2D(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x2D(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x2E - Illegal use of Supervisor Resource, handled here */ case VEC_ILL_RES: info.si_code = ILL_PRVOPC; sig = SIGILL; - verbose_printk(KERN_NOTICE EXC_0x2E(KERN_NOTICE)); + strerror = KERN_NOTICE EXC_0x2E(KERN_NOTICE); CHK_DEBUGGER_TRAP_MAYBE(); break; /* 0x2F - Reserved, Caught by default */ @@ -519,17 +526,17 @@ asmlinkage void trap_c(struct pt_regs *fp) case (SEQSTAT_HWERRCAUSE_SYSTEM_MMR): info.si_code = BUS_ADRALN; sig = SIGBUS; - verbose_printk(KERN_NOTICE HWC_x2(KERN_NOTICE)); + strerror = KERN_NOTICE HWC_x2(KERN_NOTICE); break; /* External Memory Addressing Error */ case (SEQSTAT_HWERRCAUSE_EXTERN_ADDR): info.si_code = BUS_ADRERR; sig = SIGBUS; - verbose_printk(KERN_NOTICE HWC_x3(KERN_NOTICE)); + strerror = KERN_NOTICE HWC_x3(KERN_NOTICE); break; /* Performance Monitor Overflow */ case (SEQSTAT_HWERRCAUSE_PERF_FLOW): - verbose_printk(KERN_NOTICE HWC_x12(KERN_NOTICE)); + strerror = KERN_NOTICE HWC_x12(KERN_NOTICE); break; /* RAISE 5 instruction */ case (SEQSTAT_HWERRCAUSE_RAISE_5): @@ -546,7 +553,6 @@ asmlinkage void trap_c(struct pt_regs *fp) * if we get here we hit a reserved one, so panic */ default: - oops_in_progress = 1; info.si_code = ILL_ILLPARAOP; sig = SIGILL; verbose_printk(KERN_EMERG "Caught Unhandled Exception, code = %08lx\n", @@ -557,6 +563,16 @@ asmlinkage void trap_c(struct pt_regs *fp) BUG_ON(sig == 0); + /* If the fault was caused by a kernel thread, or interrupt handler + * we will kernel panic, so the system reboots. + */ + if (kernel_mode_regs(fp) || (current && !current->mm)) { + console_verbose(); + oops_in_progress = 1; + if (strerror) + verbose_printk(strerror); + } + if (sig != SIGTRAP) { dump_bfin_process(fp); dump_bfin_mem(fp); @@ -606,8 +622,8 @@ asmlinkage void trap_c(struct pt_regs *fp) if (ANOMALY_05000461 && trapnr == VEC_HWERR && !access_ok(VERIFY_READ, fp->pc, 8)) fp->pc = SAFE_USER_INSTRUCTION; + traps_done: trace_buffer_restore(j); - return; } /* Typical exception handling routines */ @@ -792,6 +808,18 @@ void dump_bfin_trace_buffer(void) } EXPORT_SYMBOL(dump_bfin_trace_buffer); +#ifdef CONFIG_BUG +int is_valid_bugaddr(unsigned long addr) +{ + unsigned short opcode; + + if (!get_instruction(&opcode, (unsigned short *)addr)) + return 0; + + return opcode == BFIN_BUG_OPCODE; +} +#endif + /* * Checks to see if the address pointed to is either a * 16-bit CALL instruction, or a 32-bit CALL instruction diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S index 8b67167cb4f4..6ac307ca0d80 100644 --- a/arch/blackfin/kernel/vmlinux.lds.S +++ b/arch/blackfin/kernel/vmlinux.lds.S @@ -54,6 +54,7 @@ SECTIONS SCHED_TEXT #endif LOCK_TEXT + IRQENTRY_TEXT KPROBES_TEXT *(.text.*) *(.fixup) @@ -166,6 +167,20 @@ SECTIONS } PERCPU(4) SECURITY_INIT + + /* we have to discard exit text and such at runtime, not link time, to + * handle embedded cross-section references (alt instructions, bug + * table, eh_frame, etc...) + */ + .exit.text : + { + EXIT_TEXT + } + .exit.data : + { + EXIT_DATA + } + .init.ramfs : { . = ALIGN(4); @@ -264,8 +279,6 @@ SECTIONS /DISCARD/ : { - EXIT_TEXT - EXIT_DATA *(.exitcall.exit) } } diff --git a/arch/blackfin/lib/checksum.c b/arch/blackfin/lib/checksum.c index 762a7f02970a..cd605e7d8518 100644 --- a/arch/blackfin/lib/checksum.c +++ b/arch/blackfin/lib/checksum.c @@ -116,6 +116,7 @@ __sum16 ip_compute_csum(const void *buff, int len) { return (__force __sum16)~do_csum(buff, len); } +EXPORT_SYMBOL(ip_compute_csum); /* * copy from fs while checksumming, otherwise like csum_partial @@ -130,6 +131,7 @@ csum_partial_copy_from_user(const void __user *src, void *dst, memcpy(dst, (__force void *)src, len); return csum_partial(dst, len, sum); } +EXPORT_SYMBOL(csum_partial_copy_from_user); /* * copy from ds while checksumming, otherwise like csum_partial diff --git a/arch/blackfin/mach-bf518/boards/ezbrd.c b/arch/blackfin/mach-bf518/boards/ezbrd.c index 62bba09bcce6..1382f0382359 100644 --- a/arch/blackfin/mach-bf518/boards/ezbrd.c +++ b/arch/blackfin/mach-bf518/boards/ezbrd.c @@ -246,7 +246,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { .modalias = "m25p80", /* Name of spi_driver for this device */ .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */ .bus_num = 0, /* Framework bus number */ - .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/ + .chip_select = 2, /* On BF518F-EZBRD it's SPI0_SSEL2 */ .platform_data = &bfin_spi_flash_data, .controller_data = &spi_flash_chip_info, .mode = SPI_MODE_3, @@ -369,6 +369,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI0, .end = CH_SPI0, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI0, + .end = IRQ_SPI0, .flags = IORESOURCE_IRQ, }, }; @@ -399,6 +404,11 @@ static struct resource bfin_spi1_resource[] = { [1] = { .start = CH_SPI1, .end = CH_SPI1, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI1, + .end = IRQ_SPI1, .flags = IORESOURCE_IRQ, }, }; diff --git a/arch/blackfin/mach-bf527/boards/cm_bf527.c b/arch/blackfin/mach-bf527/boards/cm_bf527.c index 6d6f9effa0bb..1eaf27ff722e 100644 --- a/arch/blackfin/mach-bf527/boards/cm_bf527.c +++ b/arch/blackfin/mach-bf527/boards/cm_bf527.c @@ -664,6 +664,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, }, }; diff --git a/arch/blackfin/mach-bf527/boards/ezbrd.c b/arch/blackfin/mach-bf527/boards/ezbrd.c index 1435c5d38cd5..9f9c0005dcf1 100644 --- a/arch/blackfin/mach-bf527/boards/ezbrd.c +++ b/arch/blackfin/mach-bf527/boards/ezbrd.c @@ -467,6 +467,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, }, }; diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c index 147edd1eb1ad..3e5b7db6b065 100644 --- a/arch/blackfin/mach-bf527/boards/ezkit.c +++ b/arch/blackfin/mach-bf527/boards/ezkit.c @@ -723,6 +723,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, }, }; diff --git a/arch/blackfin/mach-bf533/boards/H8606.c b/arch/blackfin/mach-bf533/boards/H8606.c index 895f213ea454..38cf8ffd6d74 100644 --- a/arch/blackfin/mach-bf533/boards/H8606.c +++ b/arch/blackfin/mach-bf533/boards/H8606.c @@ -266,6 +266,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, } }; diff --git a/arch/blackfin/mach-bf533/boards/blackstamp.c b/arch/blackfin/mach-bf533/boards/blackstamp.c index 0765872a8ada..9ecdc361fa6d 100644 --- a/arch/blackfin/mach-bf533/boards/blackstamp.c +++ b/arch/blackfin/mach-bf533/boards/blackstamp.c @@ -162,6 +162,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, } }; diff --git a/arch/blackfin/mach-bf533/boards/cm_bf533.c b/arch/blackfin/mach-bf533/boards/cm_bf533.c index a727e538fa28..1443e92d8b62 100644 --- a/arch/blackfin/mach-bf533/boards/cm_bf533.c +++ b/arch/blackfin/mach-bf533/boards/cm_bf533.c @@ -160,6 +160,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, } }; diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c index 842f1c9c2393..89a5ec4ca048 100644 --- a/arch/blackfin/mach-bf533/boards/ezkit.c +++ b/arch/blackfin/mach-bf533/boards/ezkit.c @@ -196,6 +196,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, } }; diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c index e19c565ade16..a68ade8a3ca2 100644 --- a/arch/blackfin/mach-bf533/boards/stamp.c +++ b/arch/blackfin/mach-bf533/boards/stamp.c @@ -299,6 +299,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, } }; diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537.c b/arch/blackfin/mach-bf537/boards/cm_bf537.c index 4fee19673127..2a87d1cfcd06 100644 --- a/arch/blackfin/mach-bf537/boards/cm_bf537.c +++ b/arch/blackfin/mach-bf537/boards/cm_bf537.c @@ -182,8 +182,13 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, - } + }, }; /* SPI controller data */ diff --git a/arch/blackfin/mach-bf537/boards/minotaur.c b/arch/blackfin/mach-bf537/boards/minotaur.c index 3c159819e555..399f81da7b93 100644 --- a/arch/blackfin/mach-bf537/boards/minotaur.c +++ b/arch/blackfin/mach-bf537/boards/minotaur.c @@ -184,6 +184,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, }, }; diff --git a/arch/blackfin/mach-bf537/boards/pnav10.c b/arch/blackfin/mach-bf537/boards/pnav10.c index 26707ce39f29..838240f151f5 100644 --- a/arch/blackfin/mach-bf537/boards/pnav10.c +++ b/arch/blackfin/mach-bf537/boards/pnav10.c @@ -398,8 +398,13 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, - } + }, }; /* SPI controller data */ diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c index dfb5036f8a6b..ff7228caa7da 100644 --- a/arch/blackfin/mach-bf537/boards/stamp.c +++ b/arch/blackfin/mach-bf537/boards/stamp.c @@ -1345,7 +1345,7 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = { #if defined(CONFIG_PMIC_ADP5520) || defined(CONFIG_PMIC_ADP5520_MODULE) { I2C_BOARD_INFO("pmic-adp5520", 0x32), - .irq = IRQ_PF7, + .irq = IRQ_PG0, .platform_data = (void *)&adp5520_pdev_data, }, #endif diff --git a/arch/blackfin/mach-bf537/boards/tcm_bf537.c b/arch/blackfin/mach-bf537/boards/tcm_bf537.c index 280574591201..e523e6e610d0 100644 --- a/arch/blackfin/mach-bf537/boards/tcm_bf537.c +++ b/arch/blackfin/mach-bf537/boards/tcm_bf537.c @@ -182,6 +182,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, } }; diff --git a/arch/blackfin/mach-bf538/boards/ezkit.c b/arch/blackfin/mach-bf538/boards/ezkit.c index e37cb9378884..57695b4c3c09 100644 --- a/arch/blackfin/mach-bf538/boards/ezkit.c +++ b/arch/blackfin/mach-bf538/boards/ezkit.c @@ -352,6 +352,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI0, .end = CH_SPI0, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI0, + .end = IRQ_SPI0, .flags = IORESOURCE_IRQ, } }; @@ -366,6 +371,11 @@ static struct resource bfin_spi1_resource[] = { [1] = { .start = CH_SPI1, .end = CH_SPI1, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI1, + .end = IRQ_SPI1, .flags = IORESOURCE_IRQ, } }; diff --git a/arch/blackfin/mach-bf548/boards/cm_bf548.c b/arch/blackfin/mach-bf548/boards/cm_bf548.c index f53ad682530b..f5a3c30a41bd 100644 --- a/arch/blackfin/mach-bf548/boards/cm_bf548.c +++ b/arch/blackfin/mach-bf548/boards/cm_bf548.c @@ -612,6 +612,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI0, .end = CH_SPI0, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI0, + .end = IRQ_SPI0, .flags = IORESOURCE_IRQ, } }; @@ -626,6 +631,11 @@ static struct resource bfin_spi1_resource[] = { [1] = { .start = CH_SPI1, .end = CH_SPI1, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI1, + .end = IRQ_SPI1, .flags = IORESOURCE_IRQ, } }; diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c index add5a17452ce..805a57b5e650 100644 --- a/arch/blackfin/mach-bf548/boards/ezkit.c +++ b/arch/blackfin/mach-bf548/boards/ezkit.c @@ -396,6 +396,8 @@ static struct platform_device bfin_sir3_device = { #endif #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE) +#include <linux/smsc911x.h> + static struct resource smsc911x_resources[] = { { .name = "smsc911x-memory", @@ -409,11 +411,22 @@ static struct resource smsc911x_resources[] = { .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, }, }; + +static struct smsc911x_platform_config smsc911x_config = { + .flags = SMSC911X_USE_32BIT, + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, + .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, + .phy_interface = PHY_INTERFACE_MODE_MII, +}; + static struct platform_device smsc911x_device = { .name = "smsc911x", .id = 0, .num_resources = ARRAY_SIZE(smsc911x_resources), .resource = smsc911x_resources, + .dev = { + .platform_data = &smsc911x_config, + }, }; #endif @@ -741,6 +754,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI0, .end = CH_SPI0, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI0, + .end = IRQ_SPI0, .flags = IORESOURCE_IRQ, } }; @@ -755,6 +773,11 @@ static struct resource bfin_spi1_resource[] = { [1] = { .start = CH_SPI1, .end = CH_SPI1, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI1, + .end = IRQ_SPI1, .flags = IORESOURCE_IRQ, } }; diff --git a/arch/blackfin/mach-bf561/boards/cm_bf561.c b/arch/blackfin/mach-bf561/boards/cm_bf561.c index 0dd9685e5d53..0c9d72c5f5ba 100644 --- a/arch/blackfin/mach-bf561/boards/cm_bf561.c +++ b/arch/blackfin/mach-bf561/boards/cm_bf561.c @@ -177,8 +177,13 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, - } + }, }; /* SPI controller data */ diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c index 0e2178a1aec5..b5ef7ff7b7bd 100644 --- a/arch/blackfin/mach-bf561/boards/ezkit.c +++ b/arch/blackfin/mach-bf561/boards/ezkit.c @@ -304,6 +304,11 @@ static struct resource bfin_spi0_resource[] = { [1] = { .start = CH_SPI, .end = CH_SPI, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = IRQ_SPI, + .end = IRQ_SPI, .flags = IORESOURCE_IRQ, } }; diff --git a/arch/blackfin/mach-common/cache-c.c b/arch/blackfin/mach-common/cache-c.c index e6ab1f815123..b59ce3cb3807 100644 --- a/arch/blackfin/mach-common/cache-c.c +++ b/arch/blackfin/mach-common/cache-c.c @@ -16,9 +16,21 @@ void blackfin_invalidate_entire_dcache(void) { u32 dmem = bfin_read_DMEM_CONTROL(); - SSYNC(); bfin_write_DMEM_CONTROL(dmem & ~0xc); SSYNC(); bfin_write_DMEM_CONTROL(dmem); SSYNC(); } + +/* Invalidate the Entire Instruction cache by + * clearing IMC bit + */ +void blackfin_invalidate_entire_icache(void) +{ + u32 imem = bfin_read_IMEM_CONTROL(); + bfin_write_IMEM_CONTROL(imem & ~0x4); + SSYNC(); + bfin_write_IMEM_CONTROL(imem); + SSYNC(); +} + diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index da0558ad1b1a..31fa313e81cf 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -42,6 +42,7 @@ #include <asm/thread_info.h> /* TIF_NEED_RESCHED */ #include <asm/asm-offsets.h> #include <asm/trace.h> +#include <asm/traps.h> #include <asm/context.S> @@ -84,13 +85,15 @@ ENTRY(_ex_workaround_261) if !cc jump _bfin_return_from_exception; /* fall through */ R7 = P4; - R6 = 0x26; /* Data CPLB Miss */ + R6 = VEC_CPLB_M; /* Data CPLB Miss */ cc = R6 == R7; if cc jump _ex_dcplb_miss (BP); - R6 = 0x23; /* Data CPLB Miss */ +#ifdef CONFIG_MPU + R6 = VEC_CPLB_VL; /* Data CPLB Violation */ cc = R6 == R7; if cc jump _ex_dcplb_viol (BP); - /* Handle 0x23 Data CPLB Protection Violation +#endif + /* Handle Data CPLB Protection Violation * and Data CPLB Multiple Hits - Linux Trap Zero */ jump _ex_trap_c; @@ -270,7 +273,7 @@ ENTRY(_bfin_return_from_exception) r6.l = lo(SEQSTAT_EXCAUSE); r6.h = hi(SEQSTAT_EXCAUSE); r7 = r7 & r6; - r6 = 0x25; + r6 = VEC_UNCOV; CC = R7 == R6; if CC JUMP _double_fault; #endif @@ -1605,6 +1608,7 @@ ENTRY(_sys_call_table) .long _sys_inotify_init1 /* 365 */ .long _sys_preadv .long _sys_pwritev + .long _sys_rt_tgsigqueueinfo .rept NR_syscalls-(.-_sys_call_table)/4 .long _sys_ni_syscall diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c index 3b8ebaee77f2..61840059dfac 100644 --- a/arch/blackfin/mach-common/smp.c +++ b/arch/blackfin/mach-common/smp.c @@ -144,7 +144,7 @@ static void ipi_call_function(unsigned int cpu, struct ipi_message *msg) static irqreturn_t ipi_handler(int irq, void *dev_instance) { - struct ipi_message *msg, *mg; + struct ipi_message *msg; struct ipi_message_queue *msg_queue; unsigned int cpu = smp_processor_id(); @@ -154,7 +154,8 @@ static irqreturn_t ipi_handler(int irq, void *dev_instance) msg_queue->count++; spin_lock(&msg_queue->lock); - list_for_each_entry_safe(msg, mg, &msg_queue->head, list) { + while (!list_empty(&msg_queue->head)) { + msg = list_entry(msg_queue->head.next, typeof(*msg), list); list_del(&msg->list); switch (msg->type) { case BFIN_IPI_RESCHEDULE: @@ -221,7 +222,7 @@ int smp_call_function(void (*func)(void *info), void *info, int wait) for_each_cpu_mask(cpu, callmap) { msg_queue = &per_cpu(ipi_msg_queue, cpu); spin_lock_irqsave(&msg_queue->lock, flags); - list_add(&msg->list, &msg_queue->head); + list_add_tail(&msg->list, &msg_queue->head); spin_unlock_irqrestore(&msg_queue->lock, flags); platform_send_ipi_cpu(cpu); } @@ -261,7 +262,7 @@ int smp_call_function_single(int cpuid, void (*func) (void *info), void *info, msg_queue = &per_cpu(ipi_msg_queue, cpu); spin_lock_irqsave(&msg_queue->lock, flags); - list_add(&msg->list, &msg_queue->head); + list_add_tail(&msg->list, &msg_queue->head); spin_unlock_irqrestore(&msg_queue->lock, flags); platform_send_ipi_cpu(cpu); @@ -292,7 +293,7 @@ void smp_send_reschedule(int cpu) msg_queue = &per_cpu(ipi_msg_queue, cpu); spin_lock_irqsave(&msg_queue->lock, flags); - list_add(&msg->list, &msg_queue->head); + list_add_tail(&msg->list, &msg_queue->head); spin_unlock_irqrestore(&msg_queue->lock, flags); platform_send_ipi_cpu(cpu); @@ -320,7 +321,7 @@ void smp_send_stop(void) for_each_cpu_mask(cpu, callmap) { msg_queue = &per_cpu(ipi_msg_queue, cpu); spin_lock_irqsave(&msg_queue->lock, flags); - list_add(&msg->list, &msg_queue->head); + list_add_tail(&msg->list, &msg_queue->head); spin_unlock_irqrestore(&msg_queue->lock, flags); platform_send_ipi_cpu(cpu); } @@ -468,6 +469,17 @@ void smp_icache_flush_range_others(unsigned long start, unsigned long end) } EXPORT_SYMBOL_GPL(smp_icache_flush_range_others); +#ifdef __ARCH_SYNC_CORE_ICACHE +void resync_core_icache(void) +{ + unsigned int cpu = get_cpu(); + blackfin_invalidate_entire_icache(); + ++per_cpu(cpu_data, cpu).icache_invld_count; + put_cpu(); +} +EXPORT_SYMBOL(resync_core_icache); +#endif + #ifdef __ARCH_SYNC_CORE_DCACHE unsigned long barrier_mask __attribute__ ((__section__(".l2.bss"))); diff --git a/arch/cris/include/asm/kmap_types.h b/arch/cris/include/asm/kmap_types.h index 492988cb9077..d2d643c4ea59 100644 --- a/arch/cris/include/asm/kmap_types.h +++ b/arch/cris/include/asm/kmap_types.h @@ -5,21 +5,6 @@ * is actually used on cris. */ -enum km_type { - KM_BOUNCE_READ, - KM_SKB_SUNRPC_DATA, - KM_SKB_DATA_SOFTIRQ, - KM_USER0, - KM_USER1, - KM_BIO_SRC_IRQ, - KM_BIO_DST_IRQ, - KM_PTE0, - KM_PTE1, - KM_IRQ0, - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, - KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> #endif diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c index 4df0b320d524..51dcd04d2777 100644 --- a/arch/cris/kernel/process.c +++ b/arch/cris/kernel/process.c @@ -38,10 +38,6 @@ 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); - /* * Initial thread structure. * diff --git a/arch/frv/kernel/init_task.c b/arch/frv/kernel/init_task.c index 29429a8b7f6a..1d3df1d9495c 100644 --- a/arch/frv/kernel/init_task.c +++ b/arch/frv/kernel/init_task.c @@ -12,10 +12,6 @@ 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); - /* * Initial thread structure. * diff --git a/arch/h8300/include/asm/kmap_types.h b/arch/h8300/include/asm/kmap_types.h index 1ec8a3427120..be12a7160116 100644 --- a/arch/h8300/include/asm/kmap_types.h +++ b/arch/h8300/include/asm/kmap_types.h @@ -1,21 +1,6 @@ #ifndef _ASM_H8300_KMAP_TYPES_H #define _ASM_H8300_KMAP_TYPES_H -enum km_type { - KM_BOUNCE_READ, - KM_SKB_SUNRPC_DATA, - KM_SKB_DATA_SOFTIRQ, - KM_USER0, - KM_USER1, - KM_BIO_SRC_IRQ, - KM_BIO_DST_IRQ, - KM_PTE0, - KM_PTE1, - KM_IRQ0, - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, - KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> #endif diff --git a/arch/h8300/kernel/init_task.c b/arch/h8300/kernel/init_task.c index cb5dc552da97..089c65ed6eb3 100644 --- a/arch/h8300/kernel/init_task.c +++ b/arch/h8300/kernel/init_task.c @@ -14,10 +14,6 @@ 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); - /* * Initial task structure. * diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index 21c04114ddd2..8cfb001092ab 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -1131,7 +1131,7 @@ sba_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp #ifdef CONFIG_NUMA { struct page *page; - page = alloc_pages_node(ioc->node == MAX_NUMNODES ? + page = alloc_pages_exact_node(ioc->node == MAX_NUMNODES ? numa_node_id() : ioc->node, flags, get_order(size)); diff --git a/arch/ia64/include/asm/kmap_types.h b/arch/ia64/include/asm/kmap_types.h index 5d1658aa2b3b..05d5f9996105 100644 --- a/arch/ia64/include/asm/kmap_types.h +++ b/arch/ia64/include/asm/kmap_types.h @@ -1,30 +1,12 @@ #ifndef _ASM_IA64_KMAP_TYPES_H #define _ASM_IA64_KMAP_TYPES_H - #ifdef CONFIG_DEBUG_HIGHMEM -# define D(n) __KM_FENCE_##n , -#else -# define D(n) +#define __WITH_KM_FENCE #endif -enum km_type { -D(0) KM_BOUNCE_READ, -D(1) KM_SKB_SUNRPC_DATA, -D(2) KM_SKB_DATA_SOFTIRQ, -D(3) KM_USER0, -D(4) KM_USER1, -D(5) KM_BIO_SRC_IRQ, -D(6) KM_BIO_DST_IRQ, -D(7) KM_PTE0, -D(8) KM_PTE1, -D(9) KM_IRQ0, -D(10) KM_IRQ1, -D(11) KM_SOFTIRQ0, -D(12) KM_SOFTIRQ1, -D(13) KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> -#undef D +#undef __WITH_KM_FENCE #endif /* _ASM_IA64_KMAP_TYPES_H */ diff --git a/arch/ia64/kernel/init_task.c b/arch/ia64/kernel/init_task.c index 5b0e830c6f33..c475fc281be7 100644 --- a/arch/ia64/kernel/init_task.c +++ b/arch/ia64/kernel/init_task.c @@ -19,10 +19,6 @@ 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); - /* * Initial task structure. * diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index c259b9467fcc..7b30d21c5190 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -1829,8 +1829,7 @@ ia64_mca_cpu_init(void *cpu_data) data = mca_bootmem(); first_time = 0; } else - data = page_address(alloc_pages_node(numa_node_id(), - GFP_KERNEL, get_order(sz))); + data = __get_free_pages(GFP_KERNEL, get_order(sz)); if (!data) panic("Could not allocate MCA memory for cpu %d\n", cpu); diff --git a/arch/ia64/kernel/paravirt_patchlist.c b/arch/ia64/kernel/paravirt_patchlist.c index b28082a95d45..0a70720662ed 100644 --- a/arch/ia64/kernel/paravirt_patchlist.c +++ b/arch/ia64/kernel/paravirt_patchlist.c @@ -19,6 +19,8 @@ */ #include <linux/bug.h> +#include <linux/init.h> +#include <linux/kernel.h> #include <asm/paravirt.h> #define DECLARE(name) \ diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 89ad0bbb8614..abce2468a40b 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -5595,7 +5595,7 @@ pfm_interrupt_handler(int irq, void *arg) (*pfm_alt_intr_handler->handler)(irq, arg, regs); } - put_cpu_no_resched(); + put_cpu(); return IRQ_HANDLED; } diff --git a/arch/ia64/kernel/uncached.c b/arch/ia64/kernel/uncached.c index e6ac3c332d17..a595823582d9 100644 --- a/arch/ia64/kernel/uncached.c +++ b/arch/ia64/kernel/uncached.c @@ -98,7 +98,8 @@ static int uncached_add_chunk(struct uncached_pool *uc_pool, int nid) /* attempt to allocate a granule's worth of cached memory pages */ - page = alloc_pages_node(nid, GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, + page = alloc_pages_exact_node(nid, + GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, IA64_GRANULE_SHIFT-PAGE_SHIFT); if (!page) { mutex_unlock(&uc_pool->add_chunk_mutex); diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c index d876423e4e75..98b684928e12 100644 --- a/arch/ia64/sn/pci/pci_dma.c +++ b/arch/ia64/sn/pci/pci_dma.c @@ -90,7 +90,8 @@ static void *sn_dma_alloc_coherent(struct device *dev, size_t size, */ node = pcibus_to_node(pdev->bus); if (likely(node >=0)) { - struct page *p = alloc_pages_node(node, flags, get_order(size)); + struct page *p = alloc_pages_exact_node(node, + flags, get_order(size)); if (likely(p)) cpuaddr = page_address(p); diff --git a/arch/m32r/include/asm/kmap_types.h b/arch/m32r/include/asm/kmap_types.h index fa94dc6410ea..4cdb5e3a06bf 100644 --- a/arch/m32r/include/asm/kmap_types.h +++ b/arch/m32r/include/asm/kmap_types.h @@ -2,28 +2,11 @@ #define __M32R_KMAP_TYPES_H #ifdef CONFIG_DEBUG_HIGHMEM -# define D(n) __KM_FENCE_##n , -#else -# define D(n) +#define __WITH_KM_FENCE #endif -enum km_type { -D(0) KM_BOUNCE_READ, -D(1) KM_SKB_SUNRPC_DATA, -D(2) KM_SKB_DATA_SOFTIRQ, -D(3) KM_USER0, -D(4) KM_USER1, -D(5) KM_BIO_SRC_IRQ, -D(6) KM_BIO_DST_IRQ, -D(7) KM_PTE0, -D(8) KM_PTE1, -D(9) KM_IRQ0, -D(10) KM_IRQ1, -D(11) KM_SOFTIRQ0, -D(12) KM_SOFTIRQ1, -D(13) KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> -#undef D +#undef __WITH_KM_FENCE #endif /* __M32R_KMAP_TYPES_H */ diff --git a/arch/m32r/kernel/init_task.c b/arch/m32r/kernel/init_task.c index 016885c6f260..fce57e5d3f91 100644 --- a/arch/m32r/kernel/init_task.c +++ b/arch/m32r/kernel/init_task.c @@ -13,10 +13,6 @@ 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); - /* * Initial thread structure. * diff --git a/arch/m32r/mm/discontig.c b/arch/m32r/mm/discontig.c index 7daf897292cf..b7a78ad429b7 100644 --- a/arch/m32r/mm/discontig.c +++ b/arch/m32r/mm/discontig.c @@ -154,9 +154,9 @@ unsigned long __init zone_sizes_init(void) * Use all area of internal RAM. * see __alloc_pages() */ - NODE_DATA(1)->node_zones->pages_min = 0; - NODE_DATA(1)->node_zones->pages_low = 0; - NODE_DATA(1)->node_zones->pages_high = 0; + NODE_DATA(1)->node_zones->watermark[WMARK_MIN] = 0; + NODE_DATA(1)->node_zones->watermark[WMARK_LOW] = 0; + NODE_DATA(1)->node_zones->watermark[WMARK_HIGH] = 0; return holes; } diff --git a/arch/m32r/platforms/m32104ut/setup.c b/arch/m32r/platforms/m32104ut/setup.c index 98138b4e9220..922fdfdadeaa 100644 --- a/arch/m32r/platforms/m32104ut/setup.c +++ b/arch/m32r/platforms/m32104ut/setup.c @@ -63,7 +63,7 @@ static void shutdown_m32104ut_irq(unsigned int irq) outl(M32R_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type m32104ut_irq_type = +static struct irq_chip m32104ut_irq_type = { .typename = "M32104UT-IRQ", .startup = startup_m32104ut_irq, diff --git a/arch/m32r/platforms/m32700ut/setup.c b/arch/m32r/platforms/m32700ut/setup.c index 77b0ae9379e9..9c1bc7487c1e 100644 --- a/arch/m32r/platforms/m32700ut/setup.c +++ b/arch/m32r/platforms/m32700ut/setup.c @@ -69,7 +69,7 @@ static void shutdown_m32700ut_irq(unsigned int irq) outl(M32R_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type m32700ut_irq_type = +static struct irq_chip m32700ut_irq_type = { .typename = "M32700UT-IRQ", .startup = startup_m32700ut_irq, @@ -146,7 +146,7 @@ static void shutdown_m32700ut_pld_irq(unsigned int irq) outw(PLD_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type m32700ut_pld_irq_type = +static struct irq_chip m32700ut_pld_irq_type = { .typename = "M32700UT-PLD-IRQ", .startup = startup_m32700ut_pld_irq, @@ -215,7 +215,7 @@ static void shutdown_m32700ut_lanpld_irq(unsigned int irq) outw(PLD_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type m32700ut_lanpld_irq_type = +static struct irq_chip m32700ut_lanpld_irq_type = { .typename = "M32700UT-PLD-LAN-IRQ", .startup = startup_m32700ut_lanpld_irq, @@ -284,7 +284,7 @@ static void shutdown_m32700ut_lcdpld_irq(unsigned int irq) outw(PLD_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type m32700ut_lcdpld_irq_type = +static struct irq_chip m32700ut_lcdpld_irq_type = { .typename = "M32700UT-PLD-LCD-IRQ", .startup = startup_m32700ut_lcdpld_irq, diff --git a/arch/m32r/platforms/mappi/setup.c b/arch/m32r/platforms/mappi/setup.c index 3ec087ff2214..fb4b17799b66 100644 --- a/arch/m32r/platforms/mappi/setup.c +++ b/arch/m32r/platforms/mappi/setup.c @@ -63,7 +63,7 @@ static void shutdown_mappi_irq(unsigned int irq) outl(M32R_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type mappi_irq_type = +static struct irq_chip mappi_irq_type = { .typename = "MAPPI-IRQ", .startup = startup_mappi_irq, diff --git a/arch/m32r/platforms/mappi2/setup.c b/arch/m32r/platforms/mappi2/setup.c index d87969c6356e..6a65eda0a056 100644 --- a/arch/m32r/platforms/mappi2/setup.c +++ b/arch/m32r/platforms/mappi2/setup.c @@ -70,7 +70,7 @@ static void shutdown_mappi2_irq(unsigned int irq) outl(M32R_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type mappi2_irq_type = +static struct irq_chip mappi2_irq_type = { .typename = "MAPPI2-IRQ", .startup = startup_mappi2_irq, diff --git a/arch/m32r/platforms/mappi3/setup.c b/arch/m32r/platforms/mappi3/setup.c index 785b4bd6d9fd..9c337aeac94b 100644 --- a/arch/m32r/platforms/mappi3/setup.c +++ b/arch/m32r/platforms/mappi3/setup.c @@ -70,7 +70,7 @@ static void shutdown_mappi3_irq(unsigned int irq) outl(M32R_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type mappi3_irq_type = +static struct irq_chip mappi3_irq_type = { .typename = "MAPPI3-IRQ", .startup = startup_mappi3_irq, diff --git a/arch/m32r/platforms/oaks32r/setup.c b/arch/m32r/platforms/oaks32r/setup.c index 6faa5db68e95..ed865741c38d 100644 --- a/arch/m32r/platforms/oaks32r/setup.c +++ b/arch/m32r/platforms/oaks32r/setup.c @@ -61,7 +61,7 @@ static void shutdown_oaks32r_irq(unsigned int irq) outl(M32R_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type oaks32r_irq_type = +static struct irq_chip oaks32r_irq_type = { .typename = "OAKS32R-IRQ", .startup = startup_oaks32r_irq, diff --git a/arch/m32r/platforms/opsput/setup.c b/arch/m32r/platforms/opsput/setup.c index fab13fd85422..80d680657019 100644 --- a/arch/m32r/platforms/opsput/setup.c +++ b/arch/m32r/platforms/opsput/setup.c @@ -70,7 +70,7 @@ static void shutdown_opsput_irq(unsigned int irq) outl(M32R_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type opsput_irq_type = +static struct irq_chip opsput_irq_type = { .typename = "OPSPUT-IRQ", .startup = startup_opsput_irq, @@ -147,7 +147,7 @@ static void shutdown_opsput_pld_irq(unsigned int irq) outw(PLD_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type opsput_pld_irq_type = +static struct irq_chip opsput_pld_irq_type = { .typename = "OPSPUT-PLD-IRQ", .startup = startup_opsput_pld_irq, @@ -216,7 +216,7 @@ static void shutdown_opsput_lanpld_irq(unsigned int irq) outw(PLD_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type opsput_lanpld_irq_type = +static struct irq_chip opsput_lanpld_irq_type = { .typename = "OPSPUT-PLD-LAN-IRQ", .startup = startup_opsput_lanpld_irq, @@ -285,7 +285,7 @@ static void shutdown_opsput_lcdpld_irq(unsigned int irq) outw(PLD_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type opsput_lcdpld_irq_type = +static struct irq_chip opsput_lcdpld_irq_type = { "OPSPUT-PLD-LCD-IRQ", startup_opsput_lcdpld_irq, diff --git a/arch/m32r/platforms/usrv/setup.c b/arch/m32r/platforms/usrv/setup.c index 89588d649eb7..757302660af8 100644 --- a/arch/m32r/platforms/usrv/setup.c +++ b/arch/m32r/platforms/usrv/setup.c @@ -61,7 +61,7 @@ static void shutdown_mappi_irq(unsigned int irq) outl(M32R_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type mappi_irq_type = +static struct irq_chip mappi_irq_type = { .typename = "M32700-IRQ", .startup = startup_mappi_irq, @@ -134,7 +134,7 @@ static void shutdown_m32700ut_pld_irq(unsigned int irq) outw(PLD_ICUCR_ILEVEL7, port); } -static struct hw_interrupt_type m32700ut_pld_irq_type = +static struct irq_chip m32700ut_pld_irq_type = { .typename = "USRV-PLD-IRQ", .startup = startup_m32700ut_pld_irq, diff --git a/arch/m68k/include/asm/kmap_types.h b/arch/m68k/include/asm/kmap_types.h index c843c63d3801..3413cc1390ec 100644 --- a/arch/m68k/include/asm/kmap_types.h +++ b/arch/m68k/include/asm/kmap_types.h @@ -1,21 +1,6 @@ #ifndef __ASM_M68K_KMAP_TYPES_H #define __ASM_M68K_KMAP_TYPES_H -enum km_type { - KM_BOUNCE_READ, - KM_SKB_SUNRPC_DATA, - KM_SKB_DATA_SOFTIRQ, - KM_USER0, - KM_USER1, - KM_BIO_SRC_IRQ, - KM_BIO_DST_IRQ, - KM_PTE0, - KM_PTE1, - KM_IRQ0, - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, - KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> #endif /* __ASM_M68K_KMAP_TYPES_H */ diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c index ec37fb56c127..72bad65dba3a 100644 --- a/arch/m68k/kernel/process.c +++ b/arch/m68k/kernel/process.c @@ -42,10 +42,6 @@ */ 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); - union thread_union init_thread_union __attribute__((section(".data.init_task"), aligned(THREAD_SIZE))) = { INIT_THREAD_INFO(init_task) }; diff --git a/arch/m68knommu/kernel/init_task.c b/arch/m68knommu/kernel/init_task.c index fe282de1d596..45e97a207fed 100644 --- a/arch/m68knommu/kernel/init_task.c +++ b/arch/m68knommu/kernel/init_task.c @@ -14,10 +14,6 @@ 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); - /* * Initial task structure. * diff --git a/arch/microblaze/include/asm/kmap_types.h b/arch/microblaze/include/asm/kmap_types.h index 4d7e222f5dd7..25975252d83d 100644 --- a/arch/microblaze/include/asm/kmap_types.h +++ b/arch/microblaze/include/asm/kmap_types.h @@ -1,29 +1,6 @@ -/* - * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - #ifndef _ASM_MICROBLAZE_KMAP_TYPES_H #define _ASM_MICROBLAZE_KMAP_TYPES_H -enum km_type { - KM_BOUNCE_READ, - KM_SKB_SUNRPC_DATA, - KM_SKB_DATA_SOFTIRQ, - KM_USER0, - KM_USER1, - KM_BIO_SRC_IRQ, - KM_BIO_DST_IRQ, - KM_PTE0, - KM_PTE1, - KM_IRQ0, - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, - KM_TYPE_NR, -}; +#include <asm-generic/kmap_types.h> #endif /* _ASM_MICROBLAZE_KMAP_TYPES_H */ diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig index 783da855a2e3..d6d35b2e5fe8 100644 --- a/arch/mips/configs/bigsur_defconfig +++ b/arch/mips/configs/bigsur_defconfig @@ -963,7 +963,7 @@ CONFIG_EEPROM_LEGACY=y CONFIG_SENSORS_PCF8574=y # CONFIG_PCF8575 is not set CONFIG_SENSORS_PCF8591=y -CONFIG_SENSORS_MAX6875=y +CONFIG_EEPROM_MAX6875=y # CONFIG_SENSORS_TSL2550 is not set CONFIG_I2C_DEBUG_CORE=y CONFIG_I2C_DEBUG_ALGO=y diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig index 8426d3b9501c..fadb351d249b 100644 --- a/arch/mips/configs/mtx1_defconfig +++ b/arch/mips/configs/mtx1_defconfig @@ -1849,7 +1849,7 @@ CONFIG_EEPROM_LEGACY=m CONFIG_SENSORS_PCF8574=m CONFIG_SENSORS_PCA9539=m CONFIG_SENSORS_PCF8591=m -CONFIG_SENSORS_MAX6875=m +CONFIG_EEPROM_MAX6875=m # CONFIG_SENSORS_TSL2550 is not set # CONFIG_I2C_DEBUG_CORE is not set # CONFIG_I2C_DEBUG_ALGO is not set diff --git a/arch/mips/include/asm/i8253.h b/arch/mips/include/asm/i8253.h index 5dabc870b322..032ca73f181b 100644 --- a/arch/mips/include/asm/i8253.h +++ b/arch/mips/include/asm/i8253.h @@ -12,8 +12,6 @@ #define PIT_CH0 0x40 #define PIT_CH2 0x42 -#define PIT_TICK_RATE 1193182UL - extern spinlock_t i8253_lock; extern void setup_pit_timer(void); diff --git a/arch/mips/include/asm/kmap_types.h b/arch/mips/include/asm/kmap_types.h index 806aae3c5338..58e91ed0388f 100644 --- a/arch/mips/include/asm/kmap_types.h +++ b/arch/mips/include/asm/kmap_types.h @@ -1,30 +1,12 @@ #ifndef _ASM_KMAP_TYPES_H #define _ASM_KMAP_TYPES_H - #ifdef CONFIG_DEBUG_HIGHMEM -# define D(n) __KM_FENCE_##n , -#else -# define D(n) +#define __WITH_KM_FENCE #endif -enum km_type { -D(0) KM_BOUNCE_READ, -D(1) KM_SKB_SUNRPC_DATA, -D(2) KM_SKB_DATA_SOFTIRQ, -D(3) KM_USER0, -D(4) KM_USER1, -D(5) KM_BIO_SRC_IRQ, -D(6) KM_BIO_DST_IRQ, -D(7) KM_PTE0, -D(8) KM_PTE1, -D(9) KM_IRQ0, -D(10) KM_IRQ1, -D(11) KM_SOFTIRQ0, -D(12) KM_SOFTIRQ1, -D(13) KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> -#undef D +#undef __WITH_KM_FENCE #endif diff --git a/arch/mips/kernel/init_task.c b/arch/mips/kernel/init_task.c index 149cd914526e..5b457a40c784 100644 --- a/arch/mips/kernel/init_task.c +++ b/arch/mips/kernel/init_task.c @@ -11,10 +11,6 @@ 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); - /* * Initial thread structure. * diff --git a/arch/mips/sni/eisa.c b/arch/mips/sni/eisa.c index 7396cd719900..6827feb4de96 100644 --- a/arch/mips/sni/eisa.c +++ b/arch/mips/sni/eisa.c @@ -38,7 +38,7 @@ int __init sni_eisa_root_init(void) if (!r) return r; - eisa_root_dev.dev.driver_data = &eisa_bus_root; + dev_set_drvdata(&eisa_root_dev.dev, &eisa_bus_root); if (eisa_root_register(&eisa_bus_root)) { /* A real bridge may have been registered before diff --git a/arch/mn10300/include/asm/kmap_types.h b/arch/mn10300/include/asm/kmap_types.h index 3398f9f35603..76d093b58d4f 100644 --- a/arch/mn10300/include/asm/kmap_types.h +++ b/arch/mn10300/include/asm/kmap_types.h @@ -1,31 +1,6 @@ -/* MN10300 kmap_atomic() slot IDs - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ #ifndef _ASM_KMAP_TYPES_H #define _ASM_KMAP_TYPES_H -enum km_type { - KM_BOUNCE_READ, - KM_SKB_SUNRPC_DATA, - KM_SKB_DATA_SOFTIRQ, - KM_USER0, - KM_USER1, - KM_BIO_SRC_IRQ, - KM_BIO_DST_IRQ, - KM_PTE0, - KM_PTE1, - KM_IRQ0, - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, - KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> #endif /* _ASM_KMAP_TYPES_H */ diff --git a/arch/mn10300/kernel/init_task.c b/arch/mn10300/kernel/init_task.c index 5ac3566f8c98..80d423b80af3 100644 --- a/arch/mn10300/kernel/init_task.c +++ b/arch/mn10300/kernel/init_task.c @@ -20,9 +20,6 @@ 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); - /* * Initial thread structure. * diff --git a/arch/parisc/include/asm/kmap_types.h b/arch/parisc/include/asm/kmap_types.h index 806aae3c5338..58e91ed0388f 100644 --- a/arch/parisc/include/asm/kmap_types.h +++ b/arch/parisc/include/asm/kmap_types.h @@ -1,30 +1,12 @@ #ifndef _ASM_KMAP_TYPES_H #define _ASM_KMAP_TYPES_H - #ifdef CONFIG_DEBUG_HIGHMEM -# define D(n) __KM_FENCE_##n , -#else -# define D(n) +#define __WITH_KM_FENCE #endif -enum km_type { -D(0) KM_BOUNCE_READ, -D(1) KM_SKB_SUNRPC_DATA, -D(2) KM_SKB_DATA_SOFTIRQ, -D(3) KM_USER0, -D(4) KM_USER1, -D(5) KM_BIO_SRC_IRQ, -D(6) KM_BIO_DST_IRQ, -D(7) KM_PTE0, -D(8) KM_PTE1, -D(9) KM_IRQ0, -D(10) KM_IRQ1, -D(11) KM_SOFTIRQ0, -D(12) KM_SOFTIRQ1, -D(13) KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> -#undef D +#undef __WITH_KM_FENCE #endif diff --git a/arch/parisc/kernel/init_task.c b/arch/parisc/kernel/init_task.c index 1e25a45d64c1..82974b20fc10 100644 --- a/arch/parisc/kernel/init_task.c +++ b/arch/parisc/kernel/init_task.c @@ -36,10 +36,6 @@ 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); - /* * Initial task structure. * diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 93a61898b259..9fb344d5a86a 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -93,10 +93,6 @@ config GENERIC_HWEIGHT bool default y -config GENERIC_CALIBRATE_DELAY - bool - default y - config GENERIC_FIND_NEXT_BIT bool default y @@ -129,6 +125,7 @@ config PPC select USE_GENERIC_SMP_HELPERS if SMP select HAVE_OPROFILE select HAVE_SYSCALL_WRAPPERS if PPC64 + select GENERIC_ATOMIC64 if PPC32 config EARLY_PRINTK bool diff --git a/arch/powerpc/boot/install.sh b/arch/powerpc/boot/install.sh index 51b2387bdba0..98312d169c85 100644 --- a/arch/powerpc/boot/install.sh +++ b/arch/powerpc/boot/install.sh @@ -18,6 +18,9 @@ # $5 and more - kernel boot files; zImage*, uImage, cuImage.*, etc. # +# Bail with error code if anything goes wrong +set -e + # User may have a custom install script if [ -x ~/bin/${CROSS_COMPILE}installkernel ]; then exec ~/bin/${CROSS_COMPILE}installkernel "$@"; fi diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig index 7d044dfd9236..12dc7c409616 100644 --- a/arch/powerpc/configs/ppc6xx_defconfig +++ b/arch/powerpc/configs/ppc6xx_defconfig @@ -1808,7 +1808,7 @@ CONFIG_PCF8575=m CONFIG_SENSORS_PCA9539=m CONFIG_SENSORS_PCF8591=m # CONFIG_TPS65010 is not set -CONFIG_SENSORS_MAX6875=m +CONFIG_EEPROM_MAX6875=m CONFIG_SENSORS_TSL2550=m CONFIG_MCU_MPC8349EMITX=m # CONFIG_I2C_DEBUG_CORE is not set diff --git a/arch/powerpc/include/asm/8253pit.h b/arch/powerpc/include/asm/8253pit.h index b70d6e53b303..a71c9c1455a7 100644 --- a/arch/powerpc/include/asm/8253pit.h +++ b/arch/powerpc/include/asm/8253pit.h @@ -1,10 +1,3 @@ -#ifndef _ASM_POWERPC_8253PIT_H -#define _ASM_POWERPC_8253PIT_H - /* * 8253/8254 Programmable Interval Timer */ - -#define PIT_TICK_RATE 1193182UL - -#endif /* _ASM_POWERPC_8253PIT_H */ diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h index b7d2d07b6f96..4012483b1899 100644 --- a/arch/powerpc/include/asm/atomic.h +++ b/arch/powerpc/include/asm/atomic.h @@ -470,6 +470,9 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) +#else /* __powerpc64__ */ +#include <asm-generic/atomic64.h> + #endif /* __powerpc64__ */ #include <asm-generic/atomic-long.h> diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h index 53512374e1c9..b7f8f4a87cc0 100644 --- a/arch/powerpc/include/asm/hw_irq.h +++ b/arch/powerpc/include/asm/hw_irq.h @@ -80,7 +80,7 @@ static inline void local_irq_disable(void) __asm__ __volatile__("wrteei 0": : :"memory"); #else unsigned long msr; - __asm__ __volatile__("": : :"memory"); + msr = mfmsr(); SET_MSR_EE(msr & ~MSR_EE); #endif @@ -92,7 +92,7 @@ static inline void local_irq_enable(void) __asm__ __volatile__("wrteei 1": : :"memory"); #else unsigned long msr; - __asm__ __volatile__("": : :"memory"); + msr = mfmsr(); SET_MSR_EE(msr | MSR_EE); #endif @@ -108,7 +108,6 @@ static inline void local_irq_save_ptr(unsigned long *flags) #else SET_MSR_EE(msr & ~MSR_EE); #endif - __asm__ __volatile__("": : :"memory"); } #define local_save_flags(flags) ((flags) = mfmsr()) diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h index 7464c0daddd1..7ead7c16fb7c 100644 --- a/arch/powerpc/include/asm/iommu.h +++ b/arch/powerpc/include/asm/iommu.h @@ -35,6 +35,16 @@ #define IOMMU_PAGE_MASK (~((1 << IOMMU_PAGE_SHIFT) - 1)) #define IOMMU_PAGE_ALIGN(addr) _ALIGN_UP(addr, IOMMU_PAGE_SIZE) +/* Cell page table entries */ +#define CBE_IOPTE_PP_W 0x8000000000000000ul /* protection: write */ +#define CBE_IOPTE_PP_R 0x4000000000000000ul /* protection: read */ +#define CBE_IOPTE_M 0x2000000000000000ul /* coherency required */ +#define CBE_IOPTE_SO_R 0x1000000000000000ul /* ordering: writes */ +#define CBE_IOPTE_SO_RW 0x1800000000000000ul /* ordering: r & w */ +#define CBE_IOPTE_RPN_Mask 0x07fffffffffff000ul /* RPN */ +#define CBE_IOPTE_H 0x0000000000000800ul /* cache hint */ +#define CBE_IOPTE_IOID_Mask 0x00000000000007fful /* ioid */ + /* Boot time flags */ extern int iommu_is_off; extern int iommu_force_on; diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h index cdb6fd814de8..7f065e178ec4 100644 --- a/arch/powerpc/include/asm/ps3.h +++ b/arch/powerpc/include/asm/ps3.h @@ -53,6 +53,13 @@ enum ps3_param_av_multi_out ps3_os_area_get_av_multi_out(void); extern u64 ps3_os_area_get_rtc_diff(void); extern void ps3_os_area_set_rtc_diff(u64 rtc_diff); +struct ps3_os_area_flash_ops { + ssize_t (*read)(void *buf, size_t count, loff_t pos); + ssize_t (*write)(const void *buf, size_t count, loff_t pos); +}; + +extern void ps3_os_area_flash_register(const struct ps3_os_area_flash_ops *ops); + /* dma routines */ enum ps3_dma_page_size { @@ -418,15 +425,15 @@ static inline struct ps3_system_bus_driver * * @data: Data to set */ -static inline void ps3_system_bus_set_driver_data( +static inline void ps3_system_bus_set_drvdata( struct ps3_system_bus_device *dev, void *data) { - dev->core.driver_data = data; + dev_set_drvdata(&dev->core, data); } -static inline void *ps3_system_bus_get_driver_data( +static inline void *ps3_system_bus_get_drvdata( struct ps3_system_bus_device *dev) { - return dev->core.driver_data; + return dev_get_drvdata(&dev->core); } /* These two need global scope for get_dma_ops(). */ @@ -520,7 +527,4 @@ void ps3_sync_irq(int node); u32 ps3_get_hw_thread_id(int cpu); u64 ps3_get_spe_id(void *arg); -/* mutex synchronizing GPU accesses and video mode changes */ -extern struct mutex ps3_gpu_mutex; - #endif diff --git a/arch/powerpc/include/asm/ps3gpu.h b/arch/powerpc/include/asm/ps3gpu.h new file mode 100644 index 000000000000..b2b89591907c --- /dev/null +++ b/arch/powerpc/include/asm/ps3gpu.h @@ -0,0 +1,86 @@ +/* + * PS3 GPU declarations. + * + * Copyright 2009 Sony Corporation + * + * 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; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. + * If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _ASM_POWERPC_PS3GPU_H +#define _ASM_POWERPC_PS3GPU_H + +#include <linux/mutex.h> + +#include <asm/lv1call.h> + + +#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC 0x101 +#define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP 0x102 + +#define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP 0x600 +#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601 +#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC 0x602 +#define L1GPU_CONTEXT_ATTRIBUTE_FB_CLOSE 0x603 + +#define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION (1ULL << 32) + +#define L1GPU_DISPLAY_SYNC_HSYNC 1 +#define L1GPU_DISPLAY_SYNC_VSYNC 2 + + +/* mutex synchronizing GPU accesses and video mode changes */ +extern struct mutex ps3_gpu_mutex; + + +static inline int lv1_gpu_display_sync(u64 context_handle, u64 head, + u64 ddr_offset) +{ + return lv1_gpu_context_attribute(context_handle, + L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC, + head, ddr_offset, 0, 0); +} + +static inline int lv1_gpu_display_flip(u64 context_handle, u64 head, + u64 ddr_offset) +{ + return lv1_gpu_context_attribute(context_handle, + L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP, + head, ddr_offset, 0, 0); +} + +static inline int lv1_gpu_fb_setup(u64 context_handle, u64 xdr_lpar, + u64 xdr_size, u64 ioif_offset) +{ + return lv1_gpu_context_attribute(context_handle, + L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP, + xdr_lpar, xdr_size, ioif_offset, 0); +} + +static inline int lv1_gpu_fb_blit(u64 context_handle, u64 ddr_offset, + u64 ioif_offset, u64 sync_width, u64 pitch) +{ + return lv1_gpu_context_attribute(context_handle, + L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT, + ddr_offset, ioif_offset, sync_width, + pitch); +} + +static inline int lv1_gpu_fb_close(u64 context_handle) +{ + return lv1_gpu_context_attribute(context_handle, + L1GPU_CONTEXT_ATTRIBUTE_FB_CLOSE, 0, + 0, 0, 0); +} + +#endif /* _ASM_POWERPC_PS3GPU_H */ diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index fb359b0a6937..a3c28e46947c 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -745,11 +745,11 @@ asm volatile("mfmsr %0" : "=r" (rval)); rval;}) #ifdef CONFIG_PPC64 #define __mtmsrd(v, l) asm volatile("mtmsrd %0," __stringify(l) \ - : : "r" (v)) + : : "r" (v) : "memory") #define mtmsrd(v) __mtmsrd((v), 0) #define mtmsr(v) mtmsrd(v) #else -#define mtmsr(v) asm volatile("mtmsr %0" : : "r" (v)) +#define mtmsr(v) asm volatile("mtmsr %0" : : "r" (v) : "memory") #endif #define mfspr(rn) ({unsigned long rval; \ diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h index a0b92de51c7e..370600ca2765 100644 --- a/arch/powerpc/include/asm/systbl.h +++ b/arch/powerpc/include/asm/systbl.h @@ -325,3 +325,4 @@ SYSCALL(inotify_init1) SYSCALL_SPU(perf_counter_open) COMPAT_SYS_SPU(preadv) COMPAT_SYS_SPU(pwritev) +COMPAT_SYS(rt_tgsigqueueinfo) diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h index 4badac2d11d1..cef080bfc607 100644 --- a/arch/powerpc/include/asm/unistd.h +++ b/arch/powerpc/include/asm/unistd.h @@ -344,10 +344,11 @@ #define __NR_perf_counter_open 319 #define __NR_preadv 320 #define __NR_pwritev 321 +#define __NR_rt_tgsigqueueinfo 322 #ifdef __KERNEL__ -#define __NR_syscalls 322 +#define __NR_syscalls 323 #define __NR__exit __NR_exit #define NR_syscalls __NR_syscalls diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index a7def5f90cad..612b0c4dc26d 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -125,6 +125,7 @@ PHONY += systbl_chk systbl_chk: $(src)/systbl_chk.sh $(obj)/systbl_chk.i $(call cmd,systbl_chk) +ifeq ($(CONFIG_PPC_OF_BOOT_TRAMPOLINE),y) $(obj)/built-in.o: prom_init_check quiet_cmd_prom_init_check = CALL $< @@ -133,5 +134,6 @@ quiet_cmd_prom_init_check = CALL $< PHONY += prom_init_check prom_init_check: $(src)/prom_init_check.sh $(obj)/prom_init.o $(call cmd,prom_init_check) +endif clean-files := vmlinux.lds diff --git a/arch/powerpc/kernel/init_task.c b/arch/powerpc/kernel/init_task.c index 688b329800bd..ffc4253fef55 100644 --- a/arch/powerpc/kernel/init_task.c +++ b/arch/powerpc/kernel/init_task.c @@ -9,10 +9,6 @@ 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); - /* * Initial thread structure. * diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 2f0e64b53642..ef6f64950e9b 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -44,10 +44,7 @@ #include <asm/sections.h> #include <asm/machdep.h> -#ifdef CONFIG_LOGO_LINUX_CLUT224 #include <linux/linux_logo.h> -extern const struct linux_logo logo_linux_clut224; -#endif /* * Properties whose value is longer than this get excluded from our diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index f46548e66045..1f6816003ebe 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -424,8 +424,8 @@ void __init setup_system(void) printk("htab_hash_mask = 0x%lx\n", htab_hash_mask); #endif /* CONFIG_PPC_STD_MMU_64 */ if (PHYSICAL_START > 0) - printk("physical_start = 0x%lx\n", - PHYSICAL_START); + printk("physical_start = 0x%llx\n", + (unsigned long long)PHYSICAL_START); printk("-----------------------------------------------------\n"); DBG(" <- setup_system()\n"); diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index bee1443da763..15391c2ab013 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -52,6 +52,7 @@ #include <linux/jiffies.h> #include <linux/posix-timers.h> #include <linux/irq.h> +#include <linux/delay.h> #include <asm/io.h> #include <asm/processor.h> @@ -1143,6 +1144,15 @@ void div128_by_32(u64 dividend_high, u64 dividend_low, } +/* We don't need to calibrate delay, we use the CPU timebase for that */ +void calibrate_delay(void) +{ + /* Some generic code (such as spinlock debug) use loops_per_jiffy + * as the number of __delay(1) in a jiffy, so make it so + */ + loops_per_jiffy = tb_ticks_per_jiffy; +} + static int __init rtc_init(void) { struct platform_device *pdev; diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c index 0ce45c2b42f8..c71498dbf211 100644 --- a/arch/powerpc/platforms/cell/axon_msi.c +++ b/arch/powerpc/platforms/cell/axon_msi.c @@ -329,7 +329,7 @@ static struct irq_host_ops msic_host_ops = { static int axon_msi_shutdown(struct of_device *device) { - struct axon_msic *msic = device->dev.platform_data; + struct axon_msic *msic = dev_get_drvdata(&device->dev); u32 tmp; pr_debug("axon_msi: disabling %s\n", @@ -416,7 +416,7 @@ static int axon_msi_probe(struct of_device *device, msic->read_offset = dcr_read(msic->dcr_host, MSIC_WRITE_OFFSET_REG) & MSIC_FIFO_SIZE_MASK; - device->dev.platform_data = msic; + dev_set_drvdata(&device->dev, msic); ppc_md.setup_msi_irqs = axon_msi_setup_msi_irqs; ppc_md.teardown_msi_irqs = axon_msi_teardown_msi_irqs; diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index bed4690de394..5b34fc211f35 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -100,16 +100,6 @@ #define IOSTE_PS_1M 0x0000000000000005ul /* - 1MB */ #define IOSTE_PS_16M 0x0000000000000007ul /* - 16MB */ -/* Page table entries */ -#define IOPTE_PP_W 0x8000000000000000ul /* protection: write */ -#define IOPTE_PP_R 0x4000000000000000ul /* protection: read */ -#define IOPTE_M 0x2000000000000000ul /* coherency required */ -#define IOPTE_SO_R 0x1000000000000000ul /* ordering: writes */ -#define IOPTE_SO_RW 0x1800000000000000ul /* ordering: r & w */ -#define IOPTE_RPN_Mask 0x07fffffffffff000ul /* RPN */ -#define IOPTE_H 0x0000000000000800ul /* cache hint */ -#define IOPTE_IOID_Mask 0x00000000000007fful /* ioid */ - /* IOMMU sizing */ #define IO_SEGMENT_SHIFT 28 @@ -193,19 +183,21 @@ static int tce_build_cell(struct iommu_table *tbl, long index, long npages, */ const unsigned long prot = 0xc48; base_pte = - ((prot << (52 + 4 * direction)) & (IOPTE_PP_W | IOPTE_PP_R)) - | IOPTE_M | IOPTE_SO_RW | (window->ioid & IOPTE_IOID_Mask); + ((prot << (52 + 4 * direction)) & + (CBE_IOPTE_PP_W | CBE_IOPTE_PP_R)) | + CBE_IOPTE_M | CBE_IOPTE_SO_RW | + (window->ioid & CBE_IOPTE_IOID_Mask); #else - base_pte = IOPTE_PP_W | IOPTE_PP_R | IOPTE_M | IOPTE_SO_RW | - (window->ioid & IOPTE_IOID_Mask); + base_pte = CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_M | + CBE_IOPTE_SO_RW | (window->ioid & CBE_IOPTE_IOID_Mask); #endif if (unlikely(dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))) - base_pte &= ~IOPTE_SO_RW; + base_pte &= ~CBE_IOPTE_SO_RW; io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset); for (i = 0; i < npages; i++, uaddr += IOMMU_PAGE_SIZE) - io_pte[i] = base_pte | (__pa(uaddr) & IOPTE_RPN_Mask); + io_pte[i] = base_pte | (__pa(uaddr) & CBE_IOPTE_RPN_Mask); mb(); @@ -231,8 +223,9 @@ static void tce_free_cell(struct iommu_table *tbl, long index, long npages) #else /* spider bridge does PCI reads after freeing - insert a mapping * to a scratch page instead of an invalid entry */ - pte = IOPTE_PP_R | IOPTE_M | IOPTE_SO_RW | __pa(window->iommu->pad_page) - | (window->ioid & IOPTE_IOID_Mask); + pte = CBE_IOPTE_PP_R | CBE_IOPTE_M | CBE_IOPTE_SO_RW | + __pa(window->iommu->pad_page) | + (window->ioid & CBE_IOPTE_IOID_Mask); #endif io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset); @@ -1001,7 +994,7 @@ static void insert_16M_pte(unsigned long addr, unsigned long *ptab, pr_debug("iommu: addr %lx ptab %p segment %lx offset %lx\n", addr, ptab, segment, offset); - ptab[offset] = base_pte | (__pa(addr) & IOPTE_RPN_Mask); + ptab[offset] = base_pte | (__pa(addr) & CBE_IOPTE_RPN_Mask); } static void cell_iommu_setup_fixed_ptab(struct cbe_iommu *iommu, @@ -1016,14 +1009,14 @@ static void cell_iommu_setup_fixed_ptab(struct cbe_iommu *iommu, pr_debug("iommu: mapping 0x%lx pages from 0x%lx\n", fsize, fbase); - base_pte = IOPTE_PP_W | IOPTE_PP_R | IOPTE_M - | (cell_iommu_get_ioid(np) & IOPTE_IOID_Mask); + base_pte = CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_M | + (cell_iommu_get_ioid(np) & CBE_IOPTE_IOID_Mask); if (iommu_fixed_is_weak) pr_info("IOMMU: Using weak ordering for fixed mapping\n"); else { pr_info("IOMMU: Using strong ordering for fixed mapping\n"); - base_pte |= IOPTE_SO_RW; + base_pte |= CBE_IOPTE_SO_RW; } for (uaddr = 0; uaddr < fsize; uaddr += (1 << 24)) { diff --git a/arch/powerpc/platforms/cell/ras.c b/arch/powerpc/platforms/cell/ras.c index 296b5268754e..5e0a191764fc 100644 --- a/arch/powerpc/platforms/cell/ras.c +++ b/arch/powerpc/platforms/cell/ras.c @@ -122,8 +122,8 @@ static int __init cbe_ptcal_enable_on_node(int nid, int order) area->nid = nid; area->order = order; - area->pages = alloc_pages_node(area->nid, GFP_KERNEL | GFP_THISNODE, - area->order); + area->pages = alloc_pages_exact_node(area->nid, GFP_KERNEL|GFP_THISNODE, + area->order); if (!area->pages) { printk(KERN_WARNING "%s: no page on node %d\n", diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index 9abd210d87c1..8547e86bfb42 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -752,17 +752,8 @@ static int __init init_spu_base(void) goto out_unregister_sysdev_class; } - if (ret > 0) { - /* - * We cannot put the forward declaration in - * <linux/linux_logo.h> because of conflicting session type - * conflicts for const and __initdata with different compiler - * versions - */ - extern const struct linux_logo logo_spe_clut224; - + if (ret > 0) fb_append_extra_logo(&logo_spe_clut224, ret); - } mutex_lock(&spu_full_list_mutex); xmon_register_spus(&spu_full_list); diff --git a/arch/powerpc/platforms/iseries/dt.c b/arch/powerpc/platforms/iseries/dt.c index 4543c4bc3a56..c5a87a72057b 100644 --- a/arch/powerpc/platforms/iseries/dt.c +++ b/arch/powerpc/platforms/iseries/dt.c @@ -204,7 +204,8 @@ static void __init dt_prop_u32(struct iseries_flat_dt *dt, const char *name, dt_prop(dt, name, &data, sizeof(u32)); } -static void __init dt_prop_u64(struct iseries_flat_dt *dt, const char *name, +static void __init __maybe_unused dt_prop_u64(struct iseries_flat_dt *dt, + const char *name, u64 data) { dt_prop(dt, name, &data, sizeof(u64)); diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c index 3689c2413d24..fef4d5150517 100644 --- a/arch/powerpc/platforms/iseries/mf.c +++ b/arch/powerpc/platforms/iseries/mf.c @@ -267,7 +267,8 @@ static struct pending_event *new_pending_event(void) return ev; } -static int signal_vsp_instruction(struct vsp_cmd_data *vsp_cmd) +static int __maybe_unused +signal_vsp_instruction(struct vsp_cmd_data *vsp_cmd) { struct pending_event *ev = new_pending_event(); int rc; diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c index 9a2b6d948610..846eb8b57fd1 100644 --- a/arch/powerpc/platforms/ps3/mm.c +++ b/arch/powerpc/platforms/ps3/mm.c @@ -24,6 +24,7 @@ #include <linux/lmb.h> #include <asm/firmware.h> +#include <asm/iommu.h> #include <asm/prom.h> #include <asm/udbg.h> #include <asm/lv1call.h> @@ -605,9 +606,8 @@ static int dma_ioc0_map_pages(struct ps3_dma_region *r, unsigned long phys_addr, r->ioid, iopte_flag); if (result) { - printk(KERN_WARNING "%s:%d: lv1_map_device_dma_region " - "failed: %s\n", __func__, __LINE__, - ps3_result(result)); + pr_warning("%s:%d: lv1_put_iopte failed: %s\n", + __func__, __LINE__, ps3_result(result)); goto fail_map; } DBG("%s: pg=%d bus=%#lx, lpar=%#lx, ioid=%#x\n", __func__, @@ -1001,7 +1001,8 @@ static int dma_sb_region_create_linear(struct ps3_dma_region *r) if (len > r->len) len = r->len; result = dma_sb_map_area(r, virt_addr, len, &tmp, - IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M); + CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_SO_RW | + CBE_IOPTE_M); BUG_ON(result); } @@ -1014,7 +1015,8 @@ static int dma_sb_region_create_linear(struct ps3_dma_region *r) else len -= map.rm.size - r->offset; result = dma_sb_map_area(r, virt_addr, len, &tmp, - IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M); + CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_SO_RW | + CBE_IOPTE_M); BUG_ON(result); } diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platforms/ps3/os-area.c index cf1cd0f8c18f..d6487a9c8019 100644 --- a/arch/powerpc/platforms/ps3/os-area.c +++ b/arch/powerpc/platforms/ps3/os-area.c @@ -226,6 +226,44 @@ static struct property property_av_multi_out = { .value = &saved_params.av_multi_out, }; + +static DEFINE_MUTEX(os_area_flash_mutex); + +static const struct ps3_os_area_flash_ops *os_area_flash_ops; + +void ps3_os_area_flash_register(const struct ps3_os_area_flash_ops *ops) +{ + mutex_lock(&os_area_flash_mutex); + os_area_flash_ops = ops; + mutex_unlock(&os_area_flash_mutex); +} +EXPORT_SYMBOL_GPL(ps3_os_area_flash_register); + +static ssize_t os_area_flash_read(void *buf, size_t count, loff_t pos) +{ + ssize_t res = -ENODEV; + + mutex_lock(&os_area_flash_mutex); + if (os_area_flash_ops) + res = os_area_flash_ops->read(buf, count, pos); + mutex_unlock(&os_area_flash_mutex); + + return res; +} + +static ssize_t os_area_flash_write(const void *buf, size_t count, loff_t pos) +{ + ssize_t res = -ENODEV; + + mutex_lock(&os_area_flash_mutex); + if (os_area_flash_ops) + res = os_area_flash_ops->write(buf, count, pos); + mutex_unlock(&os_area_flash_mutex); + + return res; +} + + /** * os_area_set_property - Add or overwrite a saved_params value to the device tree. * @@ -352,12 +390,12 @@ static int db_verify(const struct os_area_db *db) if (memcmp(db->magic_num, OS_AREA_DB_MAGIC_NUM, sizeof(db->magic_num))) { pr_debug("%s:%d magic_num failed\n", __func__, __LINE__); - return -1; + return -EINVAL; } if (db->version != 1) { pr_debug("%s:%d version failed\n", __func__, __LINE__); - return -1; + return -EINVAL; } return 0; @@ -578,59 +616,48 @@ static void os_area_db_init(struct os_area_db *db) * */ -static void __maybe_unused update_flash_db(void) +static int update_flash_db(void) { - int result; - int file; - off_t offset; + const unsigned int buf_len = 8 * OS_AREA_SEGMENT_SIZE; + struct os_area_header *header; ssize_t count; - static const unsigned int buf_len = 8 * OS_AREA_SEGMENT_SIZE; - const struct os_area_header *header; + int error; + loff_t pos; struct os_area_db* db; /* Read in header and db from flash. */ - file = sys_open("/dev/ps3flash", O_RDWR, 0); - - if (file < 0) { - pr_debug("%s:%d sys_open failed\n", __func__, __LINE__); - goto fail_open; - } - header = kmalloc(buf_len, GFP_KERNEL); - if (!header) { - pr_debug("%s:%d kmalloc failed\n", __func__, __LINE__); - goto fail_malloc; + pr_debug("%s: kmalloc failed\n", __func__); + return -ENOMEM; } - offset = sys_lseek(file, 0, SEEK_SET); - - if (offset != 0) { - pr_debug("%s:%d sys_lseek failed\n", __func__, __LINE__); - goto fail_header_seek; + count = os_area_flash_read(header, buf_len, 0); + if (count < 0) { + pr_debug("%s: os_area_flash_read failed %zd\n", __func__, + count); + error = count; + goto fail; } - count = sys_read(file, (char __user *)header, buf_len); - - result = count < OS_AREA_SEGMENT_SIZE || verify_header(header) - || count < header->db_area_offset * OS_AREA_SEGMENT_SIZE; - - if (result) { - pr_debug("%s:%d verify_header failed\n", __func__, __LINE__); + pos = header->db_area_offset * OS_AREA_SEGMENT_SIZE; + if (count < OS_AREA_SEGMENT_SIZE || verify_header(header) || + count < pos) { + pr_debug("%s: verify_header failed\n", __func__); dump_header(header); - goto fail_header; + error = -EINVAL; + goto fail; } /* Now got a good db offset and some maybe good db data. */ - db = (void*)header + header->db_area_offset * OS_AREA_SEGMENT_SIZE; + db = (void *)header + pos; - result = db_verify(db); - - if (result) { - printk(KERN_NOTICE "%s:%d: Verify of flash database failed, " - "formatting.\n", __func__, __LINE__); + error = db_verify(db); + if (error) { + pr_notice("%s: Verify of flash database failed, formatting.\n", + __func__); dump_db(db); os_area_db_init(db); } @@ -639,29 +666,16 @@ static void __maybe_unused update_flash_db(void) db_set_64(db, &os_area_db_id_rtc_diff, saved_params.rtc_diff); - offset = sys_lseek(file, header->db_area_offset * OS_AREA_SEGMENT_SIZE, - SEEK_SET); - - if (offset != header->db_area_offset * OS_AREA_SEGMENT_SIZE) { - pr_debug("%s:%d sys_lseek failed\n", __func__, __LINE__); - goto fail_db_seek; - } - - count = sys_write(file, (const char __user *)db, - sizeof(struct os_area_db)); - + count = os_area_flash_write(db, sizeof(struct os_area_db), pos); if (count < sizeof(struct os_area_db)) { - pr_debug("%s:%d sys_write failed\n", __func__, __LINE__); + pr_debug("%s: os_area_flash_write failed %zd\n", __func__, + count); + error = count < 0 ? count : -EIO; } -fail_db_seek: -fail_header: -fail_header_seek: +fail: kfree(header); -fail_malloc: - sys_close(file); -fail_open: - return; + return error; } /** @@ -674,11 +688,11 @@ fail_open: static void os_area_queue_work_handler(struct work_struct *work) { struct device_node *node; + int error; pr_debug(" -> %s:%d\n", __func__, __LINE__); node = of_find_node_by_path("/"); - if (node) { os_area_set_property(node, &property_rtc_diff); of_node_put(node); @@ -686,12 +700,10 @@ static void os_area_queue_work_handler(struct work_struct *work) pr_debug("%s:%d of_find_node_by_path failed\n", __func__, __LINE__); -#if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE) - update_flash_db(); -#else - printk(KERN_WARNING "%s:%d: No flash rom driver configured.\n", - __func__, __LINE__); -#endif + error = update_flash_db(); + if (error) + pr_warning("%s: Could not update FLASH ROM\n", __func__); + pr_debug(" <- %s:%d\n", __func__, __LINE__); } @@ -808,7 +820,7 @@ u64 ps3_os_area_get_rtc_diff(void) { return saved_params.rtc_diff; } -EXPORT_SYMBOL(ps3_os_area_get_rtc_diff); +EXPORT_SYMBOL_GPL(ps3_os_area_get_rtc_diff); /** * ps3_os_area_set_rtc_diff - Set the rtc diff value. @@ -824,7 +836,7 @@ void ps3_os_area_set_rtc_diff(u64 rtc_diff) os_area_queue_work(); } } -EXPORT_SYMBOL(ps3_os_area_set_rtc_diff); +EXPORT_SYMBOL_GPL(ps3_os_area_set_rtc_diff); /** * ps3_os_area_get_av_multi_out - Returns the default video mode. diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h index 136aa0637d9c..9a196a88eda7 100644 --- a/arch/powerpc/platforms/ps3/platform.h +++ b/arch/powerpc/platforms/ps3/platform.h @@ -232,14 +232,4 @@ int ps3_repository_read_spu_resource_id(unsigned int res_index, int ps3_repository_read_vuart_av_port(unsigned int *port); int ps3_repository_read_vuart_sysmgr_port(unsigned int *port); -/* Page table entries */ -#define IOPTE_PP_W 0x8000000000000000ul /* protection: write */ -#define IOPTE_PP_R 0x4000000000000000ul /* protection: read */ -#define IOPTE_M 0x2000000000000000ul /* coherency required */ -#define IOPTE_SO_R 0x1000000000000000ul /* ordering: writes */ -#define IOPTE_SO_RW 0x1800000000000000ul /* ordering: r & w */ -#define IOPTE_RPN_Mask 0x07fffffffffff000ul /* RPN */ -#define IOPTE_H 0x0000000000000800ul /* cache hint */ -#define IOPTE_IOID_Mask 0x00000000000007fful /* ioid */ - #endif diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c index 1a7b5ae0c83e..149bea2ce583 100644 --- a/arch/powerpc/platforms/ps3/setup.c +++ b/arch/powerpc/platforms/ps3/setup.c @@ -32,6 +32,7 @@ #include <asm/udbg.h> #include <asm/prom.h> #include <asm/lv1call.h> +#include <asm/ps3gpu.h> #include "platform.h" diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c index 9a73d0238639..9fead0faf38b 100644 --- a/arch/powerpc/platforms/ps3/system-bus.c +++ b/arch/powerpc/platforms/ps3/system-bus.c @@ -27,6 +27,7 @@ #include <asm/udbg.h> #include <asm/lv1call.h> #include <asm/firmware.h> +#include <asm/iommu.h> #include "platform.h" @@ -531,7 +532,8 @@ static void * ps3_alloc_coherent(struct device *_dev, size_t size, } result = ps3_dma_map(dev->d_region, virt_addr, size, dma_handle, - IOPTE_PP_W | IOPTE_PP_R | IOPTE_SO_RW | IOPTE_M); + CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | + CBE_IOPTE_SO_RW | CBE_IOPTE_M); if (result) { pr_debug("%s:%d: ps3_dma_map failed (%d)\n", @@ -575,7 +577,8 @@ static dma_addr_t ps3_sb_map_page(struct device *_dev, struct page *page, result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size, &bus_addr, - IOPTE_PP_R | IOPTE_PP_W | IOPTE_SO_RW | IOPTE_M); + CBE_IOPTE_PP_R | CBE_IOPTE_PP_W | + CBE_IOPTE_SO_RW | CBE_IOPTE_M); if (result) { pr_debug("%s:%d: ps3_dma_map failed (%d)\n", @@ -596,16 +599,16 @@ static dma_addr_t ps3_ioc0_map_page(struct device *_dev, struct page *page, u64 iopte_flag; void *ptr = page_address(page) + offset; - iopte_flag = IOPTE_M; + iopte_flag = CBE_IOPTE_M; switch (direction) { case DMA_BIDIRECTIONAL: - iopte_flag |= IOPTE_PP_R | IOPTE_PP_W | IOPTE_SO_RW; + iopte_flag |= CBE_IOPTE_PP_R | CBE_IOPTE_PP_W | CBE_IOPTE_SO_RW; break; case DMA_TO_DEVICE: - iopte_flag |= IOPTE_PP_R | IOPTE_SO_R; + iopte_flag |= CBE_IOPTE_PP_R | CBE_IOPTE_SO_R; break; case DMA_FROM_DEVICE: - iopte_flag |= IOPTE_PP_W | IOPTE_SO_RW; + iopte_flag |= CBE_IOPTE_PP_W | CBE_IOPTE_SO_RW; break; default: /* not happned */ diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 99dc3ded6b49..a14dba0e4d67 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -348,6 +348,9 @@ config ARCH_ENABLE_MEMORY_HOTPLUG config ARCH_ENABLE_MEMORY_HOTREMOVE def_bool y +config ARCH_HIBERNATION_POSSIBLE + def_bool y if 64BIT + source "mm/Kconfig" comment "I/O subsystem configuration" @@ -592,6 +595,12 @@ config SECCOMP endmenu +menu "Power Management" + +source "kernel/power/Kconfig" + +endmenu + source "net/Kconfig" config PCMCIA diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 578c61f15a4b..0ff387cebf88 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -88,7 +88,9 @@ LDFLAGS_vmlinux := -e start head-y := arch/s390/kernel/head.o arch/s390/kernel/init_task.o core-y += arch/s390/mm/ arch/s390/kernel/ arch/s390/crypto/ \ - arch/s390/appldata/ arch/s390/hypfs/ arch/s390/kvm/ + arch/s390/appldata/ arch/s390/hypfs/ arch/s390/kvm/ \ + arch/s390/power/ + libs-y += arch/s390/lib/ drivers-y += drivers/s390/ drivers-$(CONFIG_MATHEMU) += arch/s390/math-emu/ diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c index 1dfc7100c7ee..264528e4f58d 100644 --- a/arch/s390/appldata/appldata_base.c +++ b/arch/s390/appldata/appldata_base.c @@ -5,7 +5,7 @@ * Exports appldata_register_ops() and appldata_unregister_ops() for the * data gathering modules. * - * Copyright IBM Corp. 2003, 2008 + * Copyright IBM Corp. 2003, 2009 * * Author: Gerald Schaefer <gerald.schaefer@de.ibm.com> */ @@ -26,6 +26,8 @@ #include <linux/notifier.h> #include <linux/cpu.h> #include <linux/workqueue.h> +#include <linux/suspend.h> +#include <linux/platform_device.h> #include <asm/appldata.h> #include <asm/timer.h> #include <asm/uaccess.h> @@ -41,6 +43,9 @@ #define TOD_MICRO 0x01000 /* nr. of TOD clock units for 1 microsecond */ + +static struct platform_device *appldata_pdev; + /* * /proc entries (sysctl) */ @@ -86,6 +91,7 @@ static atomic_t appldata_expire_count = ATOMIC_INIT(0); static DEFINE_SPINLOCK(appldata_timer_lock); static int appldata_interval = APPLDATA_CPU_INTERVAL; static int appldata_timer_active; +static int appldata_timer_suspended = 0; /* * Work queue @@ -475,6 +481,93 @@ void appldata_unregister_ops(struct appldata_ops *ops) /********************** module-ops management <END> **************************/ +/**************************** suspend / resume *******************************/ +static int appldata_freeze(struct device *dev) +{ + struct appldata_ops *ops; + int rc; + struct list_head *lh; + + get_online_cpus(); + spin_lock(&appldata_timer_lock); + if (appldata_timer_active) { + __appldata_vtimer_setup(APPLDATA_DEL_TIMER); + appldata_timer_suspended = 1; + } + spin_unlock(&appldata_timer_lock); + put_online_cpus(); + + mutex_lock(&appldata_ops_mutex); + list_for_each(lh, &appldata_ops_list) { + ops = list_entry(lh, struct appldata_ops, list); + if (ops->active == 1) { + rc = appldata_diag(ops->record_nr, APPLDATA_STOP_REC, + (unsigned long) ops->data, ops->size, + ops->mod_lvl); + if (rc != 0) + pr_err("Stopping the data collection for %s " + "failed with rc=%d\n", ops->name, rc); + } + } + mutex_unlock(&appldata_ops_mutex); + return 0; +} + +static int appldata_restore(struct device *dev) +{ + struct appldata_ops *ops; + int rc; + struct list_head *lh; + + get_online_cpus(); + spin_lock(&appldata_timer_lock); + if (appldata_timer_suspended) { + __appldata_vtimer_setup(APPLDATA_ADD_TIMER); + appldata_timer_suspended = 0; + } + spin_unlock(&appldata_timer_lock); + put_online_cpus(); + + mutex_lock(&appldata_ops_mutex); + list_for_each(lh, &appldata_ops_list) { + ops = list_entry(lh, struct appldata_ops, list); + if (ops->active == 1) { + ops->callback(ops->data); // init record + rc = appldata_diag(ops->record_nr, + APPLDATA_START_INTERVAL_REC, + (unsigned long) ops->data, ops->size, + ops->mod_lvl); + if (rc != 0) { + pr_err("Starting the data collection for %s " + "failed with rc=%d\n", ops->name, rc); + } + } + } + mutex_unlock(&appldata_ops_mutex); + return 0; +} + +static int appldata_thaw(struct device *dev) +{ + return appldata_restore(dev); +} + +static struct dev_pm_ops appldata_pm_ops = { + .freeze = appldata_freeze, + .thaw = appldata_thaw, + .restore = appldata_restore, +}; + +static struct platform_driver appldata_pdrv = { + .driver = { + .name = "appldata", + .owner = THIS_MODULE, + .pm = &appldata_pm_ops, + }, +}; +/************************* suspend / resume <END> ****************************/ + + /******************************* init / exit *********************************/ static void __cpuinit appldata_online_cpu(int cpu) @@ -531,11 +624,23 @@ static struct notifier_block __cpuinitdata appldata_nb = { */ static int __init appldata_init(void) { - int i; + int i, rc; + + rc = platform_driver_register(&appldata_pdrv); + if (rc) + return rc; + appldata_pdev = platform_device_register_simple("appldata", -1, NULL, + 0); + if (IS_ERR(appldata_pdev)) { + rc = PTR_ERR(appldata_pdev); + goto out_driver; + } appldata_wq = create_singlethread_workqueue("appldata"); - if (!appldata_wq) - return -ENOMEM; + if (!appldata_wq) { + rc = -ENOMEM; + goto out_device; + } get_online_cpus(); for_each_online_cpu(i) @@ -547,6 +652,12 @@ static int __init appldata_init(void) appldata_sysctl_header = register_sysctl_table(appldata_dir_table); return 0; + +out_device: + platform_device_unregister(appldata_pdev); +out_driver: + platform_driver_unregister(&appldata_pdrv); + return rc; } __initcall(appldata_init); diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index ba007d8df941..2a5419551176 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -1,11 +1,9 @@ /* - * include/asm-s390/ccwdev.h - * include/asm-s390x/ccwdev.h + * Copyright IBM Corp. 2002, 2009 * - * Copyright (C) 2002 IBM Deutschland Entwicklung GmbH, IBM Corporation - * Author(s): Arnd Bergmann <arndb@de.ibm.com> + * Author(s): Arnd Bergmann <arndb@de.ibm.com> * - * Interface for CCW device drivers + * Interface for CCW device drivers */ #ifndef _S390_CCWDEV_H_ #define _S390_CCWDEV_H_ @@ -104,6 +102,11 @@ struct ccw_device { * @set_offline: called when setting device offline * @notify: notify driver of device state changes * @shutdown: called at device shutdown + * @prepare: prepare for pm state transition + * @complete: undo work done in @prepare + * @freeze: callback for freezing during hibernation snapshotting + * @thaw: undo work done in @freeze + * @restore: callback for restoring after hibernation * @driver: embedded device driver structure * @name: device driver name */ @@ -116,6 +119,11 @@ struct ccw_driver { int (*set_offline) (struct ccw_device *); int (*notify) (struct ccw_device *, int); void (*shutdown) (struct ccw_device *); + int (*prepare) (struct ccw_device *); + void (*complete) (struct ccw_device *); + int (*freeze)(struct ccw_device *); + int (*thaw) (struct ccw_device *); + int (*restore)(struct ccw_device *); struct device_driver driver; char *name; }; @@ -184,6 +192,7 @@ extern void ccw_device_get_id(struct ccw_device *, struct ccw_dev_id *); #define to_ccwdrv(n) container_of(n, struct ccw_driver, driver) extern struct ccw_device *ccw_device_probe_console(void); +extern int ccw_device_force_console(void); // FIXME: these have to go extern int _ccw_device_get_subchannel_number(struct ccw_device *); diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h index a27f68985a79..c79c1e787b86 100644 --- a/arch/s390/include/asm/ccwgroup.h +++ b/arch/s390/include/asm/ccwgroup.h @@ -38,6 +38,11 @@ struct ccwgroup_device { * @set_online: function called when device is set online * @set_offline: function called when device is set offline * @shutdown: function called when device is shut down + * @prepare: prepare for pm state transition + * @complete: undo work done in @prepare + * @freeze: callback for freezing during hibernation snapshotting + * @thaw: undo work done in @freeze + * @restore: callback for restoring after hibernation * @driver: embedded driver structure */ struct ccwgroup_driver { @@ -51,6 +56,11 @@ struct ccwgroup_driver { int (*set_online) (struct ccwgroup_device *); int (*set_offline) (struct ccwgroup_device *); void (*shutdown)(struct ccwgroup_device *); + int (*prepare) (struct ccwgroup_device *); + void (*complete) (struct ccwgroup_device *); + int (*freeze)(struct ccwgroup_device *); + int (*thaw) (struct ccwgroup_device *); + int (*restore)(struct ccwgroup_device *); struct device_driver driver; }; diff --git a/arch/s390/include/asm/kmap_types.h b/arch/s390/include/asm/kmap_types.h index fd1574648223..94ec3ee07983 100644 --- a/arch/s390/include/asm/kmap_types.h +++ b/arch/s390/include/asm/kmap_types.h @@ -2,22 +2,7 @@ #ifndef _ASM_KMAP_TYPES_H #define _ASM_KMAP_TYPES_H -enum km_type { - KM_BOUNCE_READ, - KM_SKB_SUNRPC_DATA, - KM_SKB_DATA_SOFTIRQ, - KM_USER0, - KM_USER1, - KM_BIO_SRC_IRQ, - KM_BIO_DST_IRQ, - KM_PTE0, - KM_PTE1, - KM_IRQ0, - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, - KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> #endif #endif /* __KERNEL__ */ diff --git a/arch/s390/include/asm/suspend.h b/arch/s390/include/asm/suspend.h new file mode 100644 index 000000000000..dc75c616eafe --- /dev/null +++ b/arch/s390/include/asm/suspend.h @@ -0,0 +1,10 @@ +#ifndef __ASM_S390_SUSPEND_H +#define __ASM_S390_SUSPEND_H + +static inline int arch_prepare_suspend(void) +{ + return 0; +} + +#endif + diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h index 3a8b26eb1f2e..4fb83c1cdb77 100644 --- a/arch/s390/include/asm/system.h +++ b/arch/s390/include/asm/system.h @@ -1,11 +1,7 @@ /* - * include/asm-s390/system.h + * Copyright IBM Corp. 1999, 2009 * - * S390 version - * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation - * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com), - * - * Derived from "include/asm-i386/system.h" + * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> */ #ifndef __ASM_SYSTEM_H @@ -469,6 +465,20 @@ extern psw_t sysc_restore_trace_psw; extern psw_t io_restore_trace_psw; #endif +static inline int tprot(unsigned long addr) +{ + int rc = -EFAULT; + + asm volatile( + " tprot 0(%1),0\n" + "0: ipm %0\n" + " srl %0,28\n" + "1:\n" + EX_TABLE(0b,1b) + : "+d" (rc) : "a" (addr) : "cc"); + return rc; +} + #endif /* __KERNEL__ */ #endif diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index fb263736826c..f9b144049dc9 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -1,7 +1,7 @@ /* * arch/s390/kernel/early.c * - * Copyright IBM Corp. 2007 + * Copyright IBM Corp. 2007, 2009 * Author(s): Hongjie Yang <hongjie@us.ibm.com>, * Heiko Carstens <heiko.carstens@de.ibm.com> */ @@ -210,7 +210,7 @@ static noinline __init void detect_machine_type(void) machine_flags |= MACHINE_FLAG_VM; } -static __init void early_pgm_check_handler(void) +static void early_pgm_check_handler(void) { unsigned long addr; const struct exception_table_entry *fixup; @@ -222,7 +222,7 @@ static __init void early_pgm_check_handler(void) S390_lowcore.program_old_psw.addr = fixup->fixup | PSW_ADDR_AMODE; } -static noinline __init void setup_lowcore_early(void) +void setup_lowcore_early(void) { psw_t psw; diff --git a/arch/s390/kernel/init_task.c b/arch/s390/kernel/init_task.c index 7db95c0b8693..fe787f9e5f3f 100644 --- a/arch/s390/kernel/init_task.c +++ b/arch/s390/kernel/init_task.c @@ -18,10 +18,6 @@ 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); - /* * Initial thread structure. * diff --git a/arch/s390/kernel/mem_detect.c b/arch/s390/kernel/mem_detect.c index 9872999c66d1..559af0d07878 100644 --- a/arch/s390/kernel/mem_detect.c +++ b/arch/s390/kernel/mem_detect.c @@ -1,6 +1,7 @@ /* - * Copyright IBM Corp. 2008 - * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com> + * Copyright IBM Corp. 2008, 2009 + * + * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com> */ #include <linux/kernel.h> @@ -9,20 +10,6 @@ #include <asm/sclp.h> #include <asm/setup.h> -static inline int tprot(unsigned long addr) -{ - int rc = -EFAULT; - - asm volatile( - " tprot 0(%1),0\n" - "0: ipm %0\n" - " srl %0,28\n" - "1:\n" - EX_TABLE(0b,1b) - : "+d" (rc) : "a" (addr) : "cc"); - return rc; -} - #define ADDR2G (1ULL << 31) static void find_memory_chunks(struct mem_chunk chunk[]) diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index cc8c484984e3..fd8e3111a4e8 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -1,7 +1,7 @@ /* * arch/s390/kernel/smp.c * - * Copyright IBM Corp. 1999,2007 + * Copyright IBM Corp. 1999, 2009 * Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com), * Martin Schwidefsky (schwidefsky@de.ibm.com) * Heiko Carstens (heiko.carstens@de.ibm.com) @@ -1031,6 +1031,42 @@ out: static SYSDEV_CLASS_ATTR(dispatching, 0644, dispatching_show, dispatching_store); +/* + * If the resume kernel runs on another cpu than the suspended kernel, + * we have to switch the cpu IDs in the logical map. + */ +void smp_switch_boot_cpu_in_resume(u32 resume_phys_cpu_id, + struct _lowcore *suspend_lowcore) +{ + int cpu, suspend_cpu_id, resume_cpu_id; + u32 suspend_phys_cpu_id; + + suspend_phys_cpu_id = __cpu_logical_map[suspend_lowcore->cpu_nr]; + suspend_cpu_id = suspend_lowcore->cpu_nr; + + for_each_present_cpu(cpu) { + if (__cpu_logical_map[cpu] == resume_phys_cpu_id) { + resume_cpu_id = cpu; + goto found; + } + } + panic("Could not find resume cpu in logical map.\n"); + +found: + printk("Resume cpu ID: %i/%i\n", resume_phys_cpu_id, resume_cpu_id); + printk("Suspend cpu ID: %i/%i\n", suspend_phys_cpu_id, suspend_cpu_id); + + __cpu_logical_map[resume_cpu_id] = suspend_phys_cpu_id; + __cpu_logical_map[suspend_cpu_id] = resume_phys_cpu_id; + + lowcore_ptr[suspend_cpu_id]->cpu_addr = resume_phys_cpu_id; +} + +u32 smp_get_phys_cpu_id(void) +{ + return __cpu_logical_map[smp_processor_id()]; +} + static int __init topology_init(void) { int cpu; diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index 4ca8e826bf30..565667207985 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -313,3 +313,22 @@ int s390_enable_sie(void) return 0; } EXPORT_SYMBOL_GPL(s390_enable_sie); + +#ifdef CONFIG_DEBUG_PAGEALLOC +#ifdef CONFIG_HIBERNATION +bool kernel_page_present(struct page *page) +{ + unsigned long addr; + int cc; + + addr = page_to_phys(page); + asm("lra %1,0(%1)\n" + "ipm %0\n" + "srl %0,28" + :"=d"(cc),"+a"(addr)::"cc"); + return cc == 0; +} + +#endif /* CONFIG_HIBERNATION */ +#endif /* CONFIG_DEBUG_PAGEALLOC */ + diff --git a/arch/s390/power/Makefile b/arch/s390/power/Makefile new file mode 100644 index 000000000000..973bb45a8fec --- /dev/null +++ b/arch/s390/power/Makefile @@ -0,0 +1,8 @@ +# +# Makefile for s390 PM support +# + +obj-$(CONFIG_HIBERNATION) += suspend.o +obj-$(CONFIG_HIBERNATION) += swsusp.o +obj-$(CONFIG_HIBERNATION) += swsusp_64.o +obj-$(CONFIG_HIBERNATION) += swsusp_asm64.o diff --git a/arch/s390/power/suspend.c b/arch/s390/power/suspend.c new file mode 100644 index 000000000000..b3351eceebbe --- /dev/null +++ b/arch/s390/power/suspend.c @@ -0,0 +1,40 @@ +/* + * Suspend support specific for s390. + * + * Copyright IBM Corp. 2009 + * + * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com> + */ + +#include <linux/mm.h> +#include <linux/suspend.h> +#include <linux/reboot.h> +#include <linux/pfn.h> +#include <asm/sections.h> +#include <asm/ipl.h> + +/* + * References to section boundaries + */ +extern const void __nosave_begin, __nosave_end; + +/* + * check if given pfn is in the 'nosave' or in the read only NSS section + */ +int pfn_is_nosave(unsigned long pfn) +{ + unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT; + unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) + >> PAGE_SHIFT; + unsigned long eshared_pfn = PFN_DOWN(__pa(&_eshared)) - 1; + unsigned long stext_pfn = PFN_DOWN(__pa(&_stext)); + + if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn) + return 1; + if (pfn >= stext_pfn && pfn <= eshared_pfn) { + if (ipl_info.type == IPL_TYPE_NSS) + return 1; + } else if ((tprot(pfn * PAGE_SIZE) && pfn > 0)) + return 1; + return 0; +} diff --git a/arch/s390/power/swsusp.c b/arch/s390/power/swsusp.c new file mode 100644 index 000000000000..e6a4fe9f5f24 --- /dev/null +++ b/arch/s390/power/swsusp.c @@ -0,0 +1,30 @@ +/* + * Support for suspend and resume on s390 + * + * Copyright IBM Corp. 2009 + * + * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com> + * + */ + + +/* + * save CPU registers before creating a hibernation image and before + * restoring the memory state from it + */ +void save_processor_state(void) +{ + /* implentation contained in the + * swsusp_arch_suspend function + */ +} + +/* + * restore the contents of CPU registers + */ +void restore_processor_state(void) +{ + /* implentation contained in the + * swsusp_arch_resume function + */ +} diff --git a/arch/s390/power/swsusp_64.c b/arch/s390/power/swsusp_64.c new file mode 100644 index 000000000000..9516a517d72f --- /dev/null +++ b/arch/s390/power/swsusp_64.c @@ -0,0 +1,17 @@ +/* + * Support for suspend and resume on s390 + * + * Copyright IBM Corp. 2009 + * + * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com> + * + */ + +#include <asm/system.h> +#include <linux/interrupt.h> + +void do_after_copyback(void) +{ + mb(); +} + diff --git a/arch/s390/power/swsusp_asm64.S b/arch/s390/power/swsusp_asm64.S new file mode 100644 index 000000000000..3c74e7d827c9 --- /dev/null +++ b/arch/s390/power/swsusp_asm64.S @@ -0,0 +1,199 @@ +/* + * S390 64-bit swsusp implementation + * + * Copyright IBM Corp. 2009 + * + * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com> + * Michael Holzheu <holzheu@linux.vnet.ibm.com> + */ + +#include <asm/page.h> +#include <asm/ptrace.h> +#include <asm/asm-offsets.h> + +/* + * Save register context in absolute 0 lowcore and call swsusp_save() to + * create in-memory kernel image. The context is saved in the designated + * "store status" memory locations (see POP). + * We return from this function twice. The first time during the suspend to + * disk process. The second time via the swsusp_arch_resume() function + * (see below) in the resume process. + * This function runs with disabled interrupts. + */ + .section .text + .align 2 + .globl swsusp_arch_suspend +swsusp_arch_suspend: + stmg %r6,%r15,__SF_GPRS(%r15) + lgr %r1,%r15 + aghi %r15,-STACK_FRAME_OVERHEAD + stg %r1,__SF_BACKCHAIN(%r15) + + /* Deactivate DAT */ + stnsm __SF_EMPTY(%r15),0xfb + + /* Switch off lowcore protection */ + stctg %c0,%c0,__SF_EMPTY(%r15) + ni __SF_EMPTY+4(%r15),0xef + lctlg %c0,%c0,__SF_EMPTY(%r15) + + /* Store prefix register on stack */ + stpx __SF_EMPTY(%r15) + + /* Setup base register for lowcore (absolute 0) */ + llgf %r1,__SF_EMPTY(%r15) + + /* Get pointer to save area */ + aghi %r1,0x1000 + + /* Store registers */ + mvc 0x318(4,%r1),__SF_EMPTY(%r15) /* move prefix to lowcore */ + stfpc 0x31c(%r1) /* store fpu control */ + std 0,0x200(%r1) /* store f0 */ + std 1,0x208(%r1) /* store f1 */ + std 2,0x210(%r1) /* store f2 */ + std 3,0x218(%r1) /* store f3 */ + std 4,0x220(%r1) /* store f4 */ + std 5,0x228(%r1) /* store f5 */ + std 6,0x230(%r1) /* store f6 */ + std 7,0x238(%r1) /* store f7 */ + std 8,0x240(%r1) /* store f8 */ + std 9,0x248(%r1) /* store f9 */ + std 10,0x250(%r1) /* store f10 */ + std 11,0x258(%r1) /* store f11 */ + std 12,0x260(%r1) /* store f12 */ + std 13,0x268(%r1) /* store f13 */ + std 14,0x270(%r1) /* store f14 */ + std 15,0x278(%r1) /* store f15 */ + stam %a0,%a15,0x340(%r1) /* store access registers */ + stctg %c0,%c15,0x380(%r1) /* store control registers */ + stmg %r0,%r15,0x280(%r1) /* store general registers */ + + stpt 0x328(%r1) /* store timer */ + stckc 0x330(%r1) /* store clock comparator */ + + /* Activate DAT */ + stosm __SF_EMPTY(%r15),0x04 + + /* Set prefix page to zero */ + xc __SF_EMPTY(4,%r15),__SF_EMPTY(%r15) + spx __SF_EMPTY(%r15) + + /* Setup lowcore */ + brasl %r14,setup_lowcore_early + + /* Save image */ + brasl %r14,swsusp_save + + /* Switch on lowcore protection */ + stctg %c0,%c0,__SF_EMPTY(%r15) + oi __SF_EMPTY+4(%r15),0x10 + lctlg %c0,%c0,__SF_EMPTY(%r15) + + /* Restore prefix register and return */ + lghi %r1,0x1000 + spx 0x318(%r1) + lmg %r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15) + lghi %r2,0 + br %r14 + +/* + * Restore saved memory image to correct place and restore register context. + * Then we return to the function that called swsusp_arch_suspend(). + * swsusp_arch_resume() runs with disabled interrupts. + */ + .globl swsusp_arch_resume +swsusp_arch_resume: + stmg %r6,%r15,__SF_GPRS(%r15) + lgr %r1,%r15 + aghi %r15,-STACK_FRAME_OVERHEAD + stg %r1,__SF_BACKCHAIN(%r15) + + /* Save boot cpu number */ + brasl %r14,smp_get_phys_cpu_id + lgr %r10,%r2 + + /* Deactivate DAT */ + stnsm __SF_EMPTY(%r15),0xfb + + /* Switch off lowcore protection */ + stctg %c0,%c0,__SF_EMPTY(%r15) + ni __SF_EMPTY+4(%r15),0xef + lctlg %c0,%c0,__SF_EMPTY(%r15) + + /* Set prefix page to zero */ + xc __SF_EMPTY(4,%r15),__SF_EMPTY(%r15) + spx __SF_EMPTY(%r15) + + /* Restore saved image */ + larl %r1,restore_pblist + lg %r1,0(%r1) + ltgr %r1,%r1 + jz 2f +0: + lg %r2,8(%r1) + lg %r4,0(%r1) + lghi %r3,PAGE_SIZE + lghi %r5,PAGE_SIZE +1: + mvcle %r2,%r4,0 + jo 1b + lg %r1,16(%r1) + ltgr %r1,%r1 + jnz 0b +2: + ptlb /* flush tlb */ + + /* Restore registers */ + lghi %r13,0x1000 /* %r1 = pointer to save arae */ + + spt 0x328(%r13) /* reprogram timer */ + //sckc 0x330(%r13) /* set clock comparator */ + + lctlg %c0,%c15,0x380(%r13) /* load control registers */ + lam %a0,%a15,0x340(%r13) /* load access registers */ + + lfpc 0x31c(%r13) /* load fpu control */ + ld 0,0x200(%r13) /* load f0 */ + ld 1,0x208(%r13) /* load f1 */ + ld 2,0x210(%r13) /* load f2 */ + ld 3,0x218(%r13) /* load f3 */ + ld 4,0x220(%r13) /* load f4 */ + ld 5,0x228(%r13) /* load f5 */ + ld 6,0x230(%r13) /* load f6 */ + ld 7,0x238(%r13) /* load f7 */ + ld 8,0x240(%r13) /* load f8 */ + ld 9,0x248(%r13) /* load f9 */ + ld 10,0x250(%r13) /* load f10 */ + ld 11,0x258(%r13) /* load f11 */ + ld 12,0x260(%r13) /* load f12 */ + ld 13,0x268(%r13) /* load f13 */ + ld 14,0x270(%r13) /* load f14 */ + ld 15,0x278(%r13) /* load f15 */ + + /* Load old stack */ + lg %r15,0x2f8(%r13) + + /* Pointer to save arae */ + lghi %r13,0x1000 + + /* Switch CPUs */ + lgr %r2,%r10 /* get cpu id */ + llgf %r3,0x318(%r13) + brasl %r14,smp_switch_boot_cpu_in_resume + + /* Restore prefix register */ + spx 0x318(%r13) + + /* Switch on lowcore protection */ + stctg %c0,%c0,__SF_EMPTY(%r15) + oi __SF_EMPTY+4(%r15),0x10 + lctlg %c0,%c0,__SF_EMPTY(%r15) + + /* Activate DAT */ + stosm __SF_EMPTY(%r15),0x04 + + /* Return 0 */ + lmg %r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15) + lghi %r2,0 + br %r14 diff --git a/arch/sh/include/asm/kmap_types.h b/arch/sh/include/asm/kmap_types.h index 84d565c696be..5962b08b6dd8 100644 --- a/arch/sh/include/asm/kmap_types.h +++ b/arch/sh/include/asm/kmap_types.h @@ -3,30 +3,12 @@ /* Dummy header just to define km_type. */ - #ifdef CONFIG_DEBUG_HIGHMEM -# define D(n) __KM_FENCE_##n , -#else -# define D(n) +#define __WITH_KM_FENCE #endif -enum km_type { -D(0) KM_BOUNCE_READ, -D(1) KM_SKB_SUNRPC_DATA, -D(2) KM_SKB_DATA_SOFTIRQ, -D(3) KM_USER0, -D(4) KM_USER1, -D(5) KM_BIO_SRC_IRQ, -D(6) KM_BIO_DST_IRQ, -D(7) KM_PTE0, -D(8) KM_PTE1, -D(9) KM_IRQ0, -D(10) KM_IRQ1, -D(11) KM_SOFTIRQ0, -D(12) KM_SOFTIRQ1, -D(13) KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> -#undef D +#undef __WITH_KM_FENCE #endif diff --git a/arch/sh/kernel/init_task.c b/arch/sh/kernel/init_task.c index 80c35ff71d56..1719957c0a69 100644 --- a/arch/sh/kernel/init_task.c +++ b/arch/sh/kernel/init_task.c @@ -10,9 +10,6 @@ static struct signal_struct init_signals = INIT_SIGNALS(init_signals); static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); struct pt_regs fake_swapper_regs; -struct mm_struct init_mm = INIT_MM(init_mm); -EXPORT_SYMBOL(init_mm); - /* * Initial thread structure. * diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index cc12cd48bbc5..3f8b6a92eabd 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -37,6 +37,8 @@ config SPARC64 select HAVE_KPROBES select HAVE_LMB select HAVE_SYSCALL_WRAPPERS + select HAVE_DYNAMIC_FTRACE + select HAVE_FTRACE_MCOUNT_RECORD select USE_GENERIC_SMP_HELPERS if SMP select RTC_DRV_CMOS select RTC_DRV_BQ4802 @@ -93,6 +95,9 @@ config AUDIT_ARCH config HAVE_SETUP_PER_CPU_AREA def_bool y if SPARC64 +config HAVE_DYNAMIC_PER_CPU_AREA + def_bool y if SPARC64 + config GENERIC_HARDIRQS_NO__DO_IRQ bool def_bool y if SPARC64 diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig index b5d63bd8716e..0123a4c596ce 100644 --- a/arch/sparc/configs/sparc64_defconfig +++ b/arch/sparc/configs/sparc64_defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.30-rc2 -# Fri Apr 17 02:03:07 2009 +# Linux kernel version: 2.6.30 +# Tue Jun 16 04:59:36 2009 # CONFIG_64BIT=y CONFIG_SPARC=y @@ -19,6 +19,7 @@ CONFIG_LOCKDEP_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y CONFIG_AUDIT_ARCH=y CONFIG_HAVE_SETUP_PER_CPU_AREA=y +CONFIG_HAVE_DYNAMIC_PER_CPU_AREA=y CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y CONFIG_MMU=y CONFIG_ARCH_NO_VIRT_TO_BUS=y @@ -82,7 +83,6 @@ CONFIG_SYSCTL_SYSCALL=y CONFIG_KALLSYMS=y # CONFIG_KALLSYMS_ALL is not set # CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_STRIP_ASM_SYMS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y @@ -95,16 +95,21 @@ CONFIG_TIMERFD=y CONFIG_EVENTFD=y CONFIG_SHMEM=y CONFIG_AIO=y + +# +# Performance Counters +# CONFIG_VM_EVENT_COUNTERS=y CONFIG_PCI_QUIRKS=y CONFIG_SLUB_DEBUG=y +# CONFIG_STRIP_ASM_SYMS is not set # CONFIG_COMPAT_BRK is not set # CONFIG_SLAB is not set CONFIG_SLUB=y # CONFIG_SLOB is not set CONFIG_PROFILING=y CONFIG_TRACEPOINTS=y -# CONFIG_MARKERS is not set +CONFIG_MARKERS=y CONFIG_OPROFILE=m CONFIG_HAVE_OPROFILE=y CONFIG_KPROBES=y @@ -202,6 +207,7 @@ CONFIG_NR_QUICK=1 CONFIG_UNEVICTABLE_LRU=y CONFIG_HAVE_MLOCK=y CONFIG_HAVE_MLOCKED_PAGE_BIT=y +CONFIG_DEFAULT_MMAP_MIN_ADDR=8192 CONFIG_SCHED_SMT=y CONFIG_SCHED_MC=y # CONFIG_PREEMPT_NONE is not set @@ -321,6 +327,7 @@ CONFIG_VLAN_8021Q=m # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set # CONFIG_NET_SCHED is not set # CONFIG_DCB is not set @@ -340,7 +347,11 @@ CONFIG_WIRELESS=y CONFIG_WIRELESS_OLD_REGULATORY=y # CONFIG_WIRELESS_EXT is not set # CONFIG_LIB80211 is not set -# CONFIG_MAC80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_DEFAULT_PS_VALUE=0 # CONFIG_WIMAX is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -364,6 +375,7 @@ CONFIG_EXTRA_FIRMWARE="" CONFIG_CONNECTOR=m # CONFIG_MTD is not set CONFIG_OF_DEVICE=y +CONFIG_OF_MDIO=m # CONFIG_PARPORT is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_FD is not set @@ -399,6 +411,7 @@ CONFIG_MISC_DEVICES=y # CONFIG_EEPROM_AT24 is not set # CONFIG_EEPROM_LEGACY is not set # CONFIG_EEPROM_93CX6 is not set +# CONFIG_CB710_CORE is not set CONFIG_HAVE_IDE=y CONFIG_IDE=y @@ -477,10 +490,6 @@ CONFIG_BLK_DEV_SR=m CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=m # CONFIG_CHR_DEV_SCH is not set - -# -# Some SCSI devices (e.g. CD jukebox) support multiple LUNs -# CONFIG_SCSI_MULTI_LUN=y CONFIG_SCSI_CONSTANTS=y # CONFIG_SCSI_LOGGING is not set @@ -499,6 +508,7 @@ CONFIG_SCSI_FC_ATTRS=y CONFIG_SCSI_LOWLEVEL=y # CONFIG_ISCSI_TCP is not set # CONFIG_SCSI_CXGB3_ISCSI is not set +# CONFIG_SCSI_BNX2_ISCSI is not set # CONFIG_BLK_DEV_3W_XXXX_RAID is not set # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set @@ -507,6 +517,7 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set # CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_ARCMSR is not set # CONFIG_MEGARAID_NEWGEN is not set # CONFIG_MEGARAID_LEGACY is not set @@ -521,7 +532,6 @@ CONFIG_SCSI_LOWLEVEL=y # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_MVSAS is not set # CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_QLOGIC_1280 is not set @@ -569,7 +579,6 @@ CONFIG_DM_ZERO=m # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set CONFIG_NETDEVICES=y -CONFIG_COMPAT_NET_DEV_OPS=y # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_MACVLAN is not set @@ -635,6 +644,7 @@ CONFIG_NET_PCI=y # CONFIG_SMSC9420 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set +# CONFIG_KS8842 is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set # CONFIG_ATL2 is not set @@ -1127,6 +1137,11 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_VERBOSE_PRINTK is not set # CONFIG_SND_DEBUG is not set CONFIG_SND_VMASTER=y +CONFIG_SND_RAWMIDI_SEQ=m +# CONFIG_SND_OPL3_LIB_SEQ is not set +# CONFIG_SND_OPL4_LIB_SEQ is not set +# CONFIG_SND_SBAWE_SEQ is not set +# CONFIG_SND_EMU10K1_SEQ is not set CONFIG_SND_MPU401_UART=m CONFIG_SND_AC97_CODEC=m CONFIG_SND_DRIVERS=y @@ -1153,6 +1168,7 @@ CONFIG_SND_ALI5451=m # CONFIG_SND_OXYGEN is not set # CONFIG_SND_CS4281 is not set # CONFIG_SND_CS46XX is not set +# CONFIG_SND_CTXFI is not set # CONFIG_SND_DARLA20 is not set # CONFIG_SND_GINA20 is not set # CONFIG_SND_LAYLA20 is not set @@ -1183,6 +1199,7 @@ CONFIG_SND_ALI5451=m # CONFIG_SND_INTEL8X0 is not set # CONFIG_SND_INTEL8X0M is not set # CONFIG_SND_KORG1212 is not set +# CONFIG_SND_LX6464ES is not set # CONFIG_SND_MAESTRO3 is not set # CONFIG_SND_MIXART is not set # CONFIG_SND_NM256 is not set @@ -1229,6 +1246,7 @@ CONFIG_HID_BELKIN=y CONFIG_HID_CHERRY=y CONFIG_HID_CHICONY=y CONFIG_HID_CYPRESS=y +CONFIG_HID_DRAGONRISE=y # CONFIG_DRAGONRISE_FF is not set CONFIG_HID_EZKEY=y CONFIG_HID_KYE=y @@ -1246,9 +1264,14 @@ CONFIG_HID_PETALYNX=y CONFIG_HID_SAMSUNG=y CONFIG_HID_SONY=y CONFIG_HID_SUNPLUS=y +CONFIG_HID_GREENASIA=y # CONFIG_GREENASIA_FF is not set +CONFIG_HID_SMARTJOYPLUS=y +# CONFIG_SMARTJOYPLUS_FF is not set CONFIG_HID_TOPSEED=y +CONFIG_HID_THRUSTMASTER=y # CONFIG_THRUSTMASTER_FF is not set +CONFIG_HID_ZEROPLUS=y # CONFIG_ZEROPLUS_FF is not set CONFIG_USB_SUPPORT=y CONFIG_USB_ARCH_HAS_HCD=y @@ -1462,6 +1485,7 @@ CONFIG_FILE_LOCKING=y # CONFIG_GFS2_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_BTRFS_FS is not set +CONFIG_FSNOTIFY=y CONFIG_DNOTIFY=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y @@ -1636,25 +1660,28 @@ CONFIG_SYSCTL_SYSCALL_CHECK=y # CONFIG_DEBUG_PAGEALLOC is not set CONFIG_NOP_TRACER=y CONFIG_HAVE_FUNCTION_TRACER=y +CONFIG_HAVE_DYNAMIC_FTRACE=y +CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y CONFIG_RING_BUFFER=y +CONFIG_EVENT_TRACING=y +CONFIG_CONTEXT_SWITCH_TRACER=y CONFIG_TRACING=y +CONFIG_GENERIC_TRACER=y CONFIG_TRACING_SUPPORT=y - -# -# Tracers -# +CONFIG_FTRACE=y # CONFIG_FUNCTION_TRACER is not set # CONFIG_IRQSOFF_TRACER is not set # CONFIG_SCHED_TRACER is not set -# CONFIG_CONTEXT_SWITCH_TRACER is not set -# CONFIG_EVENT_TRACER is not set # CONFIG_BOOT_TRACER is not set -# CONFIG_TRACE_BRANCH_PROFILING is not set +CONFIG_BRANCH_PROFILE_NONE=y +# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set +# CONFIG_PROFILE_ALL_BRANCHES is not set # CONFIG_STACK_TRACER is not set # CONFIG_KMEMTRACE is not set # CONFIG_WORKQUEUE_TRACER is not set CONFIG_BLK_DEV_IO_TRACE=y # CONFIG_FTRACE_STARTUP_TEST is not set +# CONFIG_RING_BUFFER_BENCHMARK is not set # CONFIG_DYNAMIC_DEBUG is not set # CONFIG_SAMPLES is not set CONFIG_HAVE_ARCH_KGDB=y diff --git a/arch/sparc/include/asm/cpudata_64.h b/arch/sparc/include/asm/cpudata_64.h index a11b89ee9ef8..926397d345ff 100644 --- a/arch/sparc/include/asm/cpudata_64.h +++ b/arch/sparc/include/asm/cpudata_64.h @@ -6,9 +6,6 @@ #ifndef _SPARC64_CPUDATA_H #define _SPARC64_CPUDATA_H -#include <asm/hypervisor.h> -#include <asm/asi.h> - #ifndef __ASSEMBLY__ #include <linux/percpu.h> @@ -38,202 +35,10 @@ DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data); #define cpu_data(__cpu) per_cpu(__cpu_data, (__cpu)) #define local_cpu_data() __get_cpu_var(__cpu_data) -/* Trap handling code needs to get at a few critical values upon - * trap entry and to process TSB misses. These cannot be in the - * per_cpu() area as we really need to lock them into the TLB and - * thus make them part of the main kernel image. As a result we - * try to make this as small as possible. - * - * This is padded out and aligned to 64-bytes to avoid false sharing - * on SMP. - */ - -/* If you modify the size of this structure, please update - * TRAP_BLOCK_SZ_SHIFT below. - */ -struct thread_info; -struct trap_per_cpu { -/* D-cache line 1: Basic thread information, cpu and device mondo queues */ - struct thread_info *thread; - unsigned long pgd_paddr; - unsigned long cpu_mondo_pa; - unsigned long dev_mondo_pa; - -/* D-cache line 2: Error Mondo Queue and kernel buffer pointers */ - unsigned long resum_mondo_pa; - unsigned long resum_kernel_buf_pa; - unsigned long nonresum_mondo_pa; - unsigned long nonresum_kernel_buf_pa; - -/* Dcache lines 3, 4, 5, and 6: Hypervisor Fault Status */ - struct hv_fault_status fault_info; - -/* Dcache line 7: Physical addresses of CPU send mondo block and CPU list. */ - unsigned long cpu_mondo_block_pa; - unsigned long cpu_list_pa; - unsigned long tsb_huge; - unsigned long tsb_huge_temp; - -/* Dcache line 8: IRQ work list, and keep trap_block a power-of-2 in size. */ - unsigned long irq_worklist_pa; - unsigned int cpu_mondo_qmask; - unsigned int dev_mondo_qmask; - unsigned int resum_qmask; - unsigned int nonresum_qmask; - void *hdesc; -} __attribute__((aligned(64))); -extern struct trap_per_cpu trap_block[NR_CPUS]; -extern void init_cur_cpu_trap(struct thread_info *); -extern void setup_tba(void); -extern int ncpus_probed; extern const struct seq_operations cpuinfo_op; -extern unsigned long real_hard_smp_processor_id(void); - -struct cpuid_patch_entry { - unsigned int addr; - unsigned int cheetah_safari[4]; - unsigned int cheetah_jbus[4]; - unsigned int starfire[4]; - unsigned int sun4v[4]; -}; -extern struct cpuid_patch_entry __cpuid_patch, __cpuid_patch_end; - -struct sun4v_1insn_patch_entry { - unsigned int addr; - unsigned int insn; -}; -extern struct sun4v_1insn_patch_entry __sun4v_1insn_patch, - __sun4v_1insn_patch_end; - -struct sun4v_2insn_patch_entry { - unsigned int addr; - unsigned int insns[2]; -}; -extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch, - __sun4v_2insn_patch_end; - #endif /* !(__ASSEMBLY__) */ -#define TRAP_PER_CPU_THREAD 0x00 -#define TRAP_PER_CPU_PGD_PADDR 0x08 -#define TRAP_PER_CPU_CPU_MONDO_PA 0x10 -#define TRAP_PER_CPU_DEV_MONDO_PA 0x18 -#define TRAP_PER_CPU_RESUM_MONDO_PA 0x20 -#define TRAP_PER_CPU_RESUM_KBUF_PA 0x28 -#define TRAP_PER_CPU_NONRESUM_MONDO_PA 0x30 -#define TRAP_PER_CPU_NONRESUM_KBUF_PA 0x38 -#define TRAP_PER_CPU_FAULT_INFO 0x40 -#define TRAP_PER_CPU_CPU_MONDO_BLOCK_PA 0xc0 -#define TRAP_PER_CPU_CPU_LIST_PA 0xc8 -#define TRAP_PER_CPU_TSB_HUGE 0xd0 -#define TRAP_PER_CPU_TSB_HUGE_TEMP 0xd8 -#define TRAP_PER_CPU_IRQ_WORKLIST_PA 0xe0 -#define TRAP_PER_CPU_CPU_MONDO_QMASK 0xe8 -#define TRAP_PER_CPU_DEV_MONDO_QMASK 0xec -#define TRAP_PER_CPU_RESUM_QMASK 0xf0 -#define TRAP_PER_CPU_NONRESUM_QMASK 0xf4 - -#define TRAP_BLOCK_SZ_SHIFT 8 - -#include <asm/scratchpad.h> - -#define __GET_CPUID(REG) \ - /* Spitfire implementation (default). */ \ -661: ldxa [%g0] ASI_UPA_CONFIG, REG; \ - srlx REG, 17, REG; \ - and REG, 0x1f, REG; \ - nop; \ - .section .cpuid_patch, "ax"; \ - /* Instruction location. */ \ - .word 661b; \ - /* Cheetah Safari implementation. */ \ - ldxa [%g0] ASI_SAFARI_CONFIG, REG; \ - srlx REG, 17, REG; \ - and REG, 0x3ff, REG; \ - nop; \ - /* Cheetah JBUS implementation. */ \ - ldxa [%g0] ASI_JBUS_CONFIG, REG; \ - srlx REG, 17, REG; \ - and REG, 0x1f, REG; \ - nop; \ - /* Starfire implementation. */ \ - sethi %hi(0x1fff40000d0 >> 9), REG; \ - sllx REG, 9, REG; \ - or REG, 0xd0, REG; \ - lduwa [REG] ASI_PHYS_BYPASS_EC_E, REG;\ - /* sun4v implementation. */ \ - mov SCRATCHPAD_CPUID, REG; \ - ldxa [REG] ASI_SCRATCHPAD, REG; \ - nop; \ - nop; \ - .previous; - -#ifdef CONFIG_SMP - -#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - __GET_CPUID(TMP) \ - sethi %hi(trap_block), DEST; \ - sllx TMP, TRAP_BLOCK_SZ_SHIFT, TMP; \ - or DEST, %lo(trap_block), DEST; \ - add DEST, TMP, DEST; \ - -/* Clobbers TMP, current address space PGD phys address into DEST. */ -#define TRAP_LOAD_PGD_PHYS(DEST, TMP) \ - TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - ldx [DEST + TRAP_PER_CPU_PGD_PADDR], DEST; - -/* Clobbers TMP, loads local processor's IRQ work area into DEST. */ -#define TRAP_LOAD_IRQ_WORK_PA(DEST, TMP) \ - TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - add DEST, TRAP_PER_CPU_IRQ_WORKLIST_PA, DEST; - -/* Clobbers TMP, loads DEST with current thread info pointer. */ -#define TRAP_LOAD_THREAD_REG(DEST, TMP) \ - TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - ldx [DEST + TRAP_PER_CPU_THREAD], DEST; - -/* Given the current thread info pointer in THR, load the per-cpu - * area base of the current processor into DEST. REG1, REG2, and REG3 are - * clobbered. - * - * You absolutely cannot use DEST as a temporary in this code. The - * reason is that traps can happen during execution, and return from - * trap will load the fully resolved DEST per-cpu base. This can corrupt - * the calculations done by the macro mid-stream. - */ -#define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3) \ - lduh [THR + TI_CPU], REG1; \ - sethi %hi(__per_cpu_shift), REG3; \ - sethi %hi(__per_cpu_base), REG2; \ - ldx [REG3 + %lo(__per_cpu_shift)], REG3; \ - ldx [REG2 + %lo(__per_cpu_base)], REG2; \ - sllx REG1, REG3, REG3; \ - add REG3, REG2, DEST; - -#else - -#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - sethi %hi(trap_block), DEST; \ - or DEST, %lo(trap_block), DEST; \ - -/* Uniprocessor versions, we know the cpuid is zero. */ -#define TRAP_LOAD_PGD_PHYS(DEST, TMP) \ - TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - ldx [DEST + TRAP_PER_CPU_PGD_PADDR], DEST; - -/* Clobbers TMP, loads local processor's IRQ work area into DEST. */ -#define TRAP_LOAD_IRQ_WORK_PA(DEST, TMP) \ - TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - add DEST, TRAP_PER_CPU_IRQ_WORKLIST_PA, DEST; - -#define TRAP_LOAD_THREAD_REG(DEST, TMP) \ - TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ - ldx [DEST + TRAP_PER_CPU_THREAD], DEST; - -/* No per-cpu areas on uniprocessor, so no need to load DEST. */ -#define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3) - -#endif /* !(CONFIG_SMP) */ +#include <asm/trap_block.h> #endif /* _SPARC64_CPUDATA_H */ diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h index 0f4150e26619..204e4bf64438 100644 --- a/arch/sparc/include/asm/dma-mapping.h +++ b/arch/sparc/include/asm/dma-mapping.h @@ -1,8 +1,166 @@ #ifndef ___ASM_SPARC_DMA_MAPPING_H #define ___ASM_SPARC_DMA_MAPPING_H -#if defined(__sparc__) && defined(__arch64__) -#include <asm/dma-mapping_64.h> -#else -#include <asm/dma-mapping_32.h> -#endif + +#include <linux/scatterlist.h> +#include <linux/mm.h> + +#define DMA_ERROR_CODE (~(dma_addr_t)0x0) + +extern int dma_supported(struct device *dev, u64 mask); +extern int dma_set_mask(struct device *dev, u64 dma_mask); + +#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) +#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) +#define dma_is_consistent(d, h) (1) + +struct dma_ops { + void *(*alloc_coherent)(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag); + void (*free_coherent)(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle); + dma_addr_t (*map_page)(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction direction); + void (*unmap_page)(struct device *dev, dma_addr_t dma_addr, + size_t size, + enum dma_data_direction direction); + int (*map_sg)(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction direction); + void (*unmap_sg)(struct device *dev, struct scatterlist *sg, + int nhwentries, + enum dma_data_direction direction); + void (*sync_single_for_cpu)(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction); + void (*sync_single_for_device)(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction); + void (*sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, + int nelems, + enum dma_data_direction direction); + void (*sync_sg_for_device)(struct device *dev, + struct scatterlist *sg, int nents, + enum dma_data_direction dir); +}; +extern const struct dma_ops *dma_ops; + +static inline void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag) +{ + return dma_ops->alloc_coherent(dev, size, dma_handle, flag); +} + +static inline void dma_free_coherent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle) +{ + dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); +} + +static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, + size_t size, + enum dma_data_direction direction) +{ + return dma_ops->map_page(dev, virt_to_page(cpu_addr), + (unsigned long)cpu_addr & ~PAGE_MASK, size, + direction); +} + +static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, + size_t size, + enum dma_data_direction direction) +{ + dma_ops->unmap_page(dev, dma_addr, size, direction); +} + +static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction direction) +{ + return dma_ops->map_page(dev, page, offset, size, direction); +} + +static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address, + size_t size, + enum dma_data_direction direction) +{ + dma_ops->unmap_page(dev, dma_address, size, direction); +} + +static inline int dma_map_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction) +{ + return dma_ops->map_sg(dev, sg, nents, direction); +} + +static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction) +{ + dma_ops->unmap_sg(dev, sg, nents, direction); +} + +static inline void dma_sync_single_for_cpu(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction) +{ + dma_ops->sync_single_for_cpu(dev, dma_handle, size, direction); +} + +static inline void dma_sync_single_for_device(struct device *dev, + dma_addr_t dma_handle, + size_t size, + enum dma_data_direction direction) +{ + if (dma_ops->sync_single_for_device) + dma_ops->sync_single_for_device(dev, dma_handle, size, + direction); +} + +static inline void dma_sync_sg_for_cpu(struct device *dev, + struct scatterlist *sg, int nelems, + enum dma_data_direction direction) +{ + dma_ops->sync_sg_for_cpu(dev, sg, nelems, direction); +} + +static inline void dma_sync_sg_for_device(struct device *dev, + struct scatterlist *sg, int nelems, + enum dma_data_direction direction) +{ + if (dma_ops->sync_sg_for_device) + dma_ops->sync_sg_for_device(dev, sg, nelems, direction); +} + +static inline void dma_sync_single_range_for_cpu(struct device *dev, + dma_addr_t dma_handle, + unsigned long offset, + size_t size, + enum dma_data_direction dir) +{ + dma_sync_single_for_cpu(dev, dma_handle+offset, size, dir); +} + +static inline void dma_sync_single_range_for_device(struct device *dev, + dma_addr_t dma_handle, + unsigned long offset, + size_t size, + enum dma_data_direction dir) +{ + dma_sync_single_for_device(dev, dma_handle+offset, size, dir); +} + + +static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) +{ + return (dma_addr == DMA_ERROR_CODE); +} + +static inline int dma_get_cache_alignment(void) +{ + /* + * no easy way to get cache size on all processors, so return + * the maximum possible, to be safe + */ + return (1 << INTERNODE_CACHE_SHIFT); +} + #endif diff --git a/arch/sparc/include/asm/dma-mapping_32.h b/arch/sparc/include/asm/dma-mapping_32.h deleted file mode 100644 index 8a57ea0573e6..000000000000 --- a/arch/sparc/include/asm/dma-mapping_32.h +++ /dev/null @@ -1,60 +0,0 @@ -#ifndef _ASM_SPARC_DMA_MAPPING_H -#define _ASM_SPARC_DMA_MAPPING_H - -#include <linux/types.h> - -struct device; -struct scatterlist; -struct page; - -#define DMA_ERROR_CODE (~(dma_addr_t)0x0) - -extern int dma_supported(struct device *dev, u64 mask); -extern int dma_set_mask(struct device *dev, u64 dma_mask); -extern void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag); -extern void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle); -extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, - size_t size, - enum dma_data_direction direction); -extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, - size_t size, - enum dma_data_direction direction); -extern dma_addr_t dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction); -extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address, - size_t size, enum dma_data_direction direction); -extern int dma_map_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction direction); -extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction direction); -extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, - size_t size, - enum dma_data_direction direction); -extern void dma_sync_single_for_device(struct device *dev, - dma_addr_t dma_handle, - size_t size, - enum dma_data_direction direction); -extern void dma_sync_single_range_for_cpu(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, - enum dma_data_direction direction); -extern void dma_sync_single_range_for_device(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, size_t size, - enum dma_data_direction direction); -extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, - int nelems, enum dma_data_direction direction); -extern void dma_sync_sg_for_device(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction direction); -extern int dma_mapping_error(struct device *dev, dma_addr_t dma_addr); -extern int dma_get_cache_alignment(void); - -#define dma_alloc_noncoherent dma_alloc_coherent -#define dma_free_noncoherent dma_free_coherent - -#endif /* _ASM_SPARC_DMA_MAPPING_H */ diff --git a/arch/sparc/include/asm/dma-mapping_64.h b/arch/sparc/include/asm/dma-mapping_64.h deleted file mode 100644 index bfa64f9702d5..000000000000 --- a/arch/sparc/include/asm/dma-mapping_64.h +++ /dev/null @@ -1,154 +0,0 @@ -#ifndef _ASM_SPARC64_DMA_MAPPING_H -#define _ASM_SPARC64_DMA_MAPPING_H - -#include <linux/scatterlist.h> -#include <linux/mm.h> - -#define DMA_ERROR_CODE (~(dma_addr_t)0x0) - -struct dma_ops { - void *(*alloc_coherent)(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag); - void (*free_coherent)(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle); - dma_addr_t (*map_single)(struct device *dev, void *cpu_addr, - size_t size, - enum dma_data_direction direction); - void (*unmap_single)(struct device *dev, dma_addr_t dma_addr, - size_t size, - enum dma_data_direction direction); - int (*map_sg)(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction direction); - void (*unmap_sg)(struct device *dev, struct scatterlist *sg, - int nhwentries, - enum dma_data_direction direction); - void (*sync_single_for_cpu)(struct device *dev, - dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction); - void (*sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg, - int nelems, - enum dma_data_direction direction); -}; -extern const struct dma_ops *dma_ops; - -extern int dma_supported(struct device *dev, u64 mask); -extern int dma_set_mask(struct device *dev, u64 dma_mask); - -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) -{ - return dma_ops->alloc_coherent(dev, size, dma_handle, flag); -} - -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) -{ - dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); -} - -static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, - size_t size, - enum dma_data_direction direction) -{ - return dma_ops->map_single(dev, cpu_addr, size, direction); -} - -static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, - size_t size, - enum dma_data_direction direction) -{ - dma_ops->unmap_single(dev, dma_addr, size, direction); -} - -static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - return dma_ops->map_single(dev, page_address(page) + offset, - size, direction); -} - -static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address, - size_t size, - enum dma_data_direction direction) -{ - dma_ops->unmap_single(dev, dma_address, size, direction); -} - -static inline int dma_map_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction direction) -{ - return dma_ops->map_sg(dev, sg, nents, direction); -} - -static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction direction) -{ - dma_ops->unmap_sg(dev, sg, nents, direction); -} - -static inline void dma_sync_single_for_cpu(struct device *dev, - dma_addr_t dma_handle, size_t size, - enum dma_data_direction direction) -{ - dma_ops->sync_single_for_cpu(dev, dma_handle, size, direction); -} - -static inline void dma_sync_single_for_device(struct device *dev, - dma_addr_t dma_handle, - size_t size, - enum dma_data_direction direction) -{ - /* No flushing needed to sync cpu writes to the device. */ -} - -static inline void dma_sync_single_range_for_cpu(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, - enum dma_data_direction direction) -{ - dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction); -} - -static inline void dma_sync_single_range_for_device(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, - enum dma_data_direction direction) -{ - /* No flushing needed to sync cpu writes to the device. */ -} - - -static inline void dma_sync_sg_for_cpu(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction direction) -{ - dma_ops->sync_sg_for_cpu(dev, sg, nelems, direction); -} - -static inline void dma_sync_sg_for_device(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction direction) -{ - /* No flushing needed to sync cpu writes to the device. */ -} - -static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return (dma_addr == DMA_ERROR_CODE); -} - -static inline int dma_get_cache_alignment(void) -{ - /* no easy way to get cache size on all processors, so return - * the maximum possible, to be safe */ - return (1 << INTERNODE_CACHE_SHIFT); -} - -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) -#define dma_is_consistent(d, h) (1) - -#endif /* _ASM_SPARC64_DMA_MAPPING_H */ diff --git a/arch/sparc/include/asm/ftrace.h b/arch/sparc/include/asm/ftrace.h index d27716cd38c1..b0f18e9893db 100644 --- a/arch/sparc/include/asm/ftrace.h +++ b/arch/sparc/include/asm/ftrace.h @@ -11,4 +11,15 @@ extern void _mcount(void); #endif +#ifdef CONFIG_DYNAMIC_FTRACE +/* reloction of mcount call site is the same as the address */ +static inline unsigned long ftrace_call_adjust(unsigned long addr) +{ + return addr; +} + +struct dyn_arch_ftrace { +}; +#endif /* CONFIG_DYNAMIC_FTRACE */ + #endif /* _ASM_SPARC64_FTRACE */ diff --git a/arch/sparc/include/asm/kmap_types.h b/arch/sparc/include/asm/kmap_types.h index 602f5e034f7a..aad21745fbb9 100644 --- a/arch/sparc/include/asm/kmap_types.h +++ b/arch/sparc/include/asm/kmap_types.h @@ -5,21 +5,6 @@ * is actually used on sparc. -DaveM */ -enum km_type { - KM_BOUNCE_READ, - KM_SKB_SUNRPC_DATA, - KM_SKB_DATA_SOFTIRQ, - KM_USER0, - KM_USER1, - KM_BIO_SRC_IRQ, - KM_BIO_DST_IRQ, - KM_PTE0, - KM_PTE1, - KM_IRQ0, - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, - KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> #endif diff --git a/arch/sparc/include/asm/mdesc.h b/arch/sparc/include/asm/mdesc.h index 1acc7272e537..9faa046713fb 100644 --- a/arch/sparc/include/asm/mdesc.h +++ b/arch/sparc/include/asm/mdesc.h @@ -71,7 +71,8 @@ struct mdesc_notifier_client { extern void mdesc_register_notifier(struct mdesc_notifier_client *client); -extern void mdesc_fill_in_cpu_data(cpumask_t mask); +extern void mdesc_fill_in_cpu_data(cpumask_t *mask); +extern void mdesc_populate_present_mask(cpumask_t *mask); extern void sun4v_mdesc_init(void); diff --git a/arch/sparc/include/asm/percpu_64.h b/arch/sparc/include/asm/percpu_64.h index bee64593023e..007aafb4ae97 100644 --- a/arch/sparc/include/asm/percpu_64.h +++ b/arch/sparc/include/asm/percpu_64.h @@ -7,20 +7,16 @@ register unsigned long __local_per_cpu_offset asm("g5"); #ifdef CONFIG_SMP -extern void real_setup_per_cpu_areas(void); +#include <asm/trap_block.h> -extern unsigned long __per_cpu_base; -extern unsigned long __per_cpu_shift; #define __per_cpu_offset(__cpu) \ - (__per_cpu_base + ((unsigned long)(__cpu) << __per_cpu_shift)) + (trap_block[(__cpu)].__per_cpu_base) #define per_cpu_offset(x) (__per_cpu_offset(x)) #define __my_cpu_offset __local_per_cpu_offset #else /* ! SMP */ -#define real_setup_per_cpu_areas() do { } while (0) - #endif /* SMP */ #include <asm-generic/percpu.h> diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h index 900d44714f8d..be8d7aaeb60d 100644 --- a/arch/sparc/include/asm/prom.h +++ b/arch/sparc/include/asm/prom.h @@ -86,6 +86,8 @@ extern int of_node_to_nid(struct device_node *dp); #endif extern void prom_build_devicetree(void); +extern void of_populate_present_mask(void); +extern void of_fill_in_cpu_data(void); /* Dummy ref counting routines - to be implemented later */ static inline struct device_node *of_node_get(struct device_node *node) diff --git a/arch/sparc/include/asm/trap_block.h b/arch/sparc/include/asm/trap_block.h new file mode 100644 index 000000000000..7e26b2db6211 --- /dev/null +++ b/arch/sparc/include/asm/trap_block.h @@ -0,0 +1,207 @@ +#ifndef _SPARC_TRAP_BLOCK_H +#define _SPARC_TRAP_BLOCK_H + +#include <asm/hypervisor.h> +#include <asm/asi.h> + +#ifndef __ASSEMBLY__ + +/* Trap handling code needs to get at a few critical values upon + * trap entry and to process TSB misses. These cannot be in the + * per_cpu() area as we really need to lock them into the TLB and + * thus make them part of the main kernel image. As a result we + * try to make this as small as possible. + * + * This is padded out and aligned to 64-bytes to avoid false sharing + * on SMP. + */ + +/* If you modify the size of this structure, please update + * TRAP_BLOCK_SZ_SHIFT below. + */ +struct thread_info; +struct trap_per_cpu { +/* D-cache line 1: Basic thread information, cpu and device mondo queues */ + struct thread_info *thread; + unsigned long pgd_paddr; + unsigned long cpu_mondo_pa; + unsigned long dev_mondo_pa; + +/* D-cache line 2: Error Mondo Queue and kernel buffer pointers */ + unsigned long resum_mondo_pa; + unsigned long resum_kernel_buf_pa; + unsigned long nonresum_mondo_pa; + unsigned long nonresum_kernel_buf_pa; + +/* Dcache lines 3, 4, 5, and 6: Hypervisor Fault Status */ + struct hv_fault_status fault_info; + +/* Dcache line 7: Physical addresses of CPU send mondo block and CPU list. */ + unsigned long cpu_mondo_block_pa; + unsigned long cpu_list_pa; + unsigned long tsb_huge; + unsigned long tsb_huge_temp; + +/* Dcache line 8: IRQ work list, and keep trap_block a power-of-2 in size. */ + unsigned long irq_worklist_pa; + unsigned int cpu_mondo_qmask; + unsigned int dev_mondo_qmask; + unsigned int resum_qmask; + unsigned int nonresum_qmask; + unsigned long __per_cpu_base; +} __attribute__((aligned(64))); +extern struct trap_per_cpu trap_block[NR_CPUS]; +extern void init_cur_cpu_trap(struct thread_info *); +extern void setup_tba(void); +extern int ncpus_probed; + +extern unsigned long real_hard_smp_processor_id(void); + +struct cpuid_patch_entry { + unsigned int addr; + unsigned int cheetah_safari[4]; + unsigned int cheetah_jbus[4]; + unsigned int starfire[4]; + unsigned int sun4v[4]; +}; +extern struct cpuid_patch_entry __cpuid_patch, __cpuid_patch_end; + +struct sun4v_1insn_patch_entry { + unsigned int addr; + unsigned int insn; +}; +extern struct sun4v_1insn_patch_entry __sun4v_1insn_patch, + __sun4v_1insn_patch_end; + +struct sun4v_2insn_patch_entry { + unsigned int addr; + unsigned int insns[2]; +}; +extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch, + __sun4v_2insn_patch_end; + + +#endif /* !(__ASSEMBLY__) */ + +#define TRAP_PER_CPU_THREAD 0x00 +#define TRAP_PER_CPU_PGD_PADDR 0x08 +#define TRAP_PER_CPU_CPU_MONDO_PA 0x10 +#define TRAP_PER_CPU_DEV_MONDO_PA 0x18 +#define TRAP_PER_CPU_RESUM_MONDO_PA 0x20 +#define TRAP_PER_CPU_RESUM_KBUF_PA 0x28 +#define TRAP_PER_CPU_NONRESUM_MONDO_PA 0x30 +#define TRAP_PER_CPU_NONRESUM_KBUF_PA 0x38 +#define TRAP_PER_CPU_FAULT_INFO 0x40 +#define TRAP_PER_CPU_CPU_MONDO_BLOCK_PA 0xc0 +#define TRAP_PER_CPU_CPU_LIST_PA 0xc8 +#define TRAP_PER_CPU_TSB_HUGE 0xd0 +#define TRAP_PER_CPU_TSB_HUGE_TEMP 0xd8 +#define TRAP_PER_CPU_IRQ_WORKLIST_PA 0xe0 +#define TRAP_PER_CPU_CPU_MONDO_QMASK 0xe8 +#define TRAP_PER_CPU_DEV_MONDO_QMASK 0xec +#define TRAP_PER_CPU_RESUM_QMASK 0xf0 +#define TRAP_PER_CPU_NONRESUM_QMASK 0xf4 +#define TRAP_PER_CPU_PER_CPU_BASE 0xf8 + +#define TRAP_BLOCK_SZ_SHIFT 8 + +#include <asm/scratchpad.h> + +#define __GET_CPUID(REG) \ + /* Spitfire implementation (default). */ \ +661: ldxa [%g0] ASI_UPA_CONFIG, REG; \ + srlx REG, 17, REG; \ + and REG, 0x1f, REG; \ + nop; \ + .section .cpuid_patch, "ax"; \ + /* Instruction location. */ \ + .word 661b; \ + /* Cheetah Safari implementation. */ \ + ldxa [%g0] ASI_SAFARI_CONFIG, REG; \ + srlx REG, 17, REG; \ + and REG, 0x3ff, REG; \ + nop; \ + /* Cheetah JBUS implementation. */ \ + ldxa [%g0] ASI_JBUS_CONFIG, REG; \ + srlx REG, 17, REG; \ + and REG, 0x1f, REG; \ + nop; \ + /* Starfire implementation. */ \ + sethi %hi(0x1fff40000d0 >> 9), REG; \ + sllx REG, 9, REG; \ + or REG, 0xd0, REG; \ + lduwa [REG] ASI_PHYS_BYPASS_EC_E, REG;\ + /* sun4v implementation. */ \ + mov SCRATCHPAD_CPUID, REG; \ + ldxa [REG] ASI_SCRATCHPAD, REG; \ + nop; \ + nop; \ + .previous; + +#ifdef CONFIG_SMP + +#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + __GET_CPUID(TMP) \ + sethi %hi(trap_block), DEST; \ + sllx TMP, TRAP_BLOCK_SZ_SHIFT, TMP; \ + or DEST, %lo(trap_block), DEST; \ + add DEST, TMP, DEST; \ + +/* Clobbers TMP, current address space PGD phys address into DEST. */ +#define TRAP_LOAD_PGD_PHYS(DEST, TMP) \ + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + ldx [DEST + TRAP_PER_CPU_PGD_PADDR], DEST; + +/* Clobbers TMP, loads local processor's IRQ work area into DEST. */ +#define TRAP_LOAD_IRQ_WORK_PA(DEST, TMP) \ + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + add DEST, TRAP_PER_CPU_IRQ_WORKLIST_PA, DEST; + +/* Clobbers TMP, loads DEST with current thread info pointer. */ +#define TRAP_LOAD_THREAD_REG(DEST, TMP) \ + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + ldx [DEST + TRAP_PER_CPU_THREAD], DEST; + +/* Given the current thread info pointer in THR, load the per-cpu + * area base of the current processor into DEST. REG1, REG2, and REG3 are + * clobbered. + * + * You absolutely cannot use DEST as a temporary in this code. The + * reason is that traps can happen during execution, and return from + * trap will load the fully resolved DEST per-cpu base. This can corrupt + * the calculations done by the macro mid-stream. + */ +#define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3) \ + lduh [THR + TI_CPU], REG1; \ + sethi %hi(trap_block), REG2; \ + sllx REG1, TRAP_BLOCK_SZ_SHIFT, REG1; \ + or REG2, %lo(trap_block), REG2; \ + add REG2, REG1, REG2; \ + ldx [REG2 + TRAP_PER_CPU_PER_CPU_BASE], DEST; + +#else + +#define TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + sethi %hi(trap_block), DEST; \ + or DEST, %lo(trap_block), DEST; \ + +/* Uniprocessor versions, we know the cpuid is zero. */ +#define TRAP_LOAD_PGD_PHYS(DEST, TMP) \ + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + ldx [DEST + TRAP_PER_CPU_PGD_PADDR], DEST; + +/* Clobbers TMP, loads local processor's IRQ work area into DEST. */ +#define TRAP_LOAD_IRQ_WORK_PA(DEST, TMP) \ + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + add DEST, TRAP_PER_CPU_IRQ_WORKLIST_PA, DEST; + +#define TRAP_LOAD_THREAD_REG(DEST, TMP) \ + TRAP_LOAD_TRAP_BLOCK(DEST, TMP) \ + ldx [DEST + TRAP_PER_CPU_THREAD], DEST; + +/* No per-cpu areas on uniprocessor, so no need to load DEST. */ +#define LOAD_PER_CPU_BASE(DEST, THR, REG1, REG2, REG3) + +#endif /* !(CONFIG_SMP) */ + +#endif /* _SPARC_TRAP_BLOCK_H */ diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h index b8eb71ef3163..b2c406de7d4f 100644 --- a/arch/sparc/include/asm/unistd.h +++ b/arch/sparc/include/asm/unistd.h @@ -394,8 +394,9 @@ #define __NR_accept4 323 #define __NR_preadv 324 #define __NR_pwritev 325 +#define __NR_rt_tgsigqueueinfo 326 -#define NR_SYSCALLS 326 +#define NR_SYSCALLS 327 #ifdef __32bit_syscall_numbers__ /* Sparc 32-bit only has the "setresuid32", "getresuid32" variants, diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile index 54742e58831c..475ce4696acd 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -37,6 +37,7 @@ obj-y += una_asm_$(BITS).o obj-$(CONFIG_SPARC32) += muldiv.o obj-y += prom_common.o obj-y += prom_$(BITS).o +obj-y += of_device_common.o obj-y += of_device_$(BITS).o obj-$(CONFIG_SPARC64) += prom_irqtrans.o @@ -54,6 +55,7 @@ obj-$(CONFIG_SPARC64) += sstate.o obj-$(CONFIG_SPARC64) += mdesc.o obj-$(CONFIG_SPARC64) += pcr.o obj-$(CONFIG_SPARC64) += nmi.o +obj-$(CONFIG_SPARC64_SMP) += cpumap.o # sparc32 do not use GENERIC_HARDIRQS but uses the generic devres implementation obj-$(CONFIG_SPARC32) += devres.o diff --git a/arch/sparc/kernel/cpumap.c b/arch/sparc/kernel/cpumap.c new file mode 100644 index 000000000000..7430ed080b23 --- /dev/null +++ b/arch/sparc/kernel/cpumap.c @@ -0,0 +1,431 @@ +/* cpumap.c: used for optimizing CPU assignment + * + * Copyright (C) 2009 Hong H. Pham <hong.pham@windriver.com> + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/cpumask.h> +#include <linux/spinlock.h> +#include <asm/cpudata.h> +#include "cpumap.h" + + +enum { + CPUINFO_LVL_ROOT = 0, + CPUINFO_LVL_NODE, + CPUINFO_LVL_CORE, + CPUINFO_LVL_PROC, + CPUINFO_LVL_MAX, +}; + +enum { + ROVER_NO_OP = 0, + /* Increment rover every time level is visited */ + ROVER_INC_ON_VISIT = 1 << 0, + /* Increment parent's rover every time rover wraps around */ + ROVER_INC_PARENT_ON_LOOP = 1 << 1, +}; + +struct cpuinfo_node { + int id; + int level; + int num_cpus; /* Number of CPUs in this hierarchy */ + int parent_index; + int child_start; /* Array index of the first child node */ + int child_end; /* Array index of the last child node */ + int rover; /* Child node iterator */ +}; + +struct cpuinfo_level { + int start_index; /* Index of first node of a level in a cpuinfo tree */ + int end_index; /* Index of last node of a level in a cpuinfo tree */ + int num_nodes; /* Number of nodes in a level in a cpuinfo tree */ +}; + +struct cpuinfo_tree { + int total_nodes; + + /* Offsets into nodes[] for each level of the tree */ + struct cpuinfo_level level[CPUINFO_LVL_MAX]; + struct cpuinfo_node nodes[0]; +}; + + +static struct cpuinfo_tree *cpuinfo_tree; + +static u16 cpu_distribution_map[NR_CPUS]; +static DEFINE_SPINLOCK(cpu_map_lock); + + +/* Niagara optimized cpuinfo tree traversal. */ +static const int niagara_iterate_method[] = { + [CPUINFO_LVL_ROOT] = ROVER_NO_OP, + + /* Strands (or virtual CPUs) within a core may not run concurrently + * on the Niagara, as instruction pipeline(s) are shared. Distribute + * work to strands in different cores first for better concurrency. + * Go to next NUMA node when all cores are used. + */ + [CPUINFO_LVL_NODE] = ROVER_INC_ON_VISIT|ROVER_INC_PARENT_ON_LOOP, + + /* Strands are grouped together by proc_id in cpuinfo_sparc, i.e. + * a proc_id represents an instruction pipeline. Distribute work to + * strands in different proc_id groups if the core has multiple + * instruction pipelines (e.g. the Niagara 2/2+ has two). + */ + [CPUINFO_LVL_CORE] = ROVER_INC_ON_VISIT, + + /* Pick the next strand in the proc_id group. */ + [CPUINFO_LVL_PROC] = ROVER_INC_ON_VISIT, +}; + +/* Generic cpuinfo tree traversal. Distribute work round robin across NUMA + * nodes. + */ +static const int generic_iterate_method[] = { + [CPUINFO_LVL_ROOT] = ROVER_INC_ON_VISIT, + [CPUINFO_LVL_NODE] = ROVER_NO_OP, + [CPUINFO_LVL_CORE] = ROVER_INC_PARENT_ON_LOOP, + [CPUINFO_LVL_PROC] = ROVER_INC_ON_VISIT|ROVER_INC_PARENT_ON_LOOP, +}; + + +static int cpuinfo_id(int cpu, int level) +{ + int id; + + switch (level) { + case CPUINFO_LVL_ROOT: + id = 0; + break; + case CPUINFO_LVL_NODE: + id = cpu_to_node(cpu); + break; + case CPUINFO_LVL_CORE: + id = cpu_data(cpu).core_id; + break; + case CPUINFO_LVL_PROC: + id = cpu_data(cpu).proc_id; + break; + default: + id = -EINVAL; + } + return id; +} + +/* + * Enumerate the CPU information in __cpu_data to determine the start index, + * end index, and number of nodes for each level in the cpuinfo tree. The + * total number of cpuinfo nodes required to build the tree is returned. + */ +static int enumerate_cpuinfo_nodes(struct cpuinfo_level *tree_level) +{ + int prev_id[CPUINFO_LVL_MAX]; + int i, n, num_nodes; + + for (i = CPUINFO_LVL_ROOT; i < CPUINFO_LVL_MAX; i++) { + struct cpuinfo_level *lv = &tree_level[i]; + + prev_id[i] = -1; + lv->start_index = lv->end_index = lv->num_nodes = 0; + } + + num_nodes = 1; /* Include the root node */ + + for (i = 0; i < num_possible_cpus(); i++) { + if (!cpu_online(i)) + continue; + + n = cpuinfo_id(i, CPUINFO_LVL_NODE); + if (n > prev_id[CPUINFO_LVL_NODE]) { + tree_level[CPUINFO_LVL_NODE].num_nodes++; + prev_id[CPUINFO_LVL_NODE] = n; + num_nodes++; + } + n = cpuinfo_id(i, CPUINFO_LVL_CORE); + if (n > prev_id[CPUINFO_LVL_CORE]) { + tree_level[CPUINFO_LVL_CORE].num_nodes++; + prev_id[CPUINFO_LVL_CORE] = n; + num_nodes++; + } + n = cpuinfo_id(i, CPUINFO_LVL_PROC); + if (n > prev_id[CPUINFO_LVL_PROC]) { + tree_level[CPUINFO_LVL_PROC].num_nodes++; + prev_id[CPUINFO_LVL_PROC] = n; + num_nodes++; + } + } + + tree_level[CPUINFO_LVL_ROOT].num_nodes = 1; + + n = tree_level[CPUINFO_LVL_NODE].num_nodes; + tree_level[CPUINFO_LVL_NODE].start_index = 1; + tree_level[CPUINFO_LVL_NODE].end_index = n; + + n++; + tree_level[CPUINFO_LVL_CORE].start_index = n; + n += tree_level[CPUINFO_LVL_CORE].num_nodes; + tree_level[CPUINFO_LVL_CORE].end_index = n - 1; + + tree_level[CPUINFO_LVL_PROC].start_index = n; + n += tree_level[CPUINFO_LVL_PROC].num_nodes; + tree_level[CPUINFO_LVL_PROC].end_index = n - 1; + + return num_nodes; +} + +/* Build a tree representation of the CPU hierarchy using the per CPU + * information in __cpu_data. Entries in __cpu_data[0..NR_CPUS] are + * assumed to be sorted in ascending order based on node, core_id, and + * proc_id (in order of significance). + */ +static struct cpuinfo_tree *build_cpuinfo_tree(void) +{ + struct cpuinfo_tree *new_tree; + struct cpuinfo_node *node; + struct cpuinfo_level tmp_level[CPUINFO_LVL_MAX]; + int num_cpus[CPUINFO_LVL_MAX]; + int level_rover[CPUINFO_LVL_MAX]; + int prev_id[CPUINFO_LVL_MAX]; + int n, id, cpu, prev_cpu, last_cpu, level; + + n = enumerate_cpuinfo_nodes(tmp_level); + + new_tree = kzalloc(sizeof(struct cpuinfo_tree) + + (sizeof(struct cpuinfo_node) * n), GFP_ATOMIC); + if (!new_tree) + return NULL; + + new_tree->total_nodes = n; + memcpy(&new_tree->level, tmp_level, sizeof(tmp_level)); + + prev_cpu = cpu = first_cpu(cpu_online_map); + + /* Initialize all levels in the tree with the first CPU */ + for (level = CPUINFO_LVL_PROC; level >= CPUINFO_LVL_ROOT; level--) { + n = new_tree->level[level].start_index; + + level_rover[level] = n; + node = &new_tree->nodes[n]; + + id = cpuinfo_id(cpu, level); + if (unlikely(id < 0)) { + kfree(new_tree); + return NULL; + } + node->id = id; + node->level = level; + node->num_cpus = 1; + + node->parent_index = (level > CPUINFO_LVL_ROOT) + ? new_tree->level[level - 1].start_index : -1; + + node->child_start = node->child_end = node->rover = + (level == CPUINFO_LVL_PROC) + ? cpu : new_tree->level[level + 1].start_index; + + prev_id[level] = node->id; + num_cpus[level] = 1; + } + + for (last_cpu = (num_possible_cpus() - 1); last_cpu >= 0; last_cpu--) { + if (cpu_online(last_cpu)) + break; + } + + while (++cpu <= last_cpu) { + if (!cpu_online(cpu)) + continue; + + for (level = CPUINFO_LVL_PROC; level >= CPUINFO_LVL_ROOT; + level--) { + id = cpuinfo_id(cpu, level); + if (unlikely(id < 0)) { + kfree(new_tree); + return NULL; + } + + if ((id != prev_id[level]) || (cpu == last_cpu)) { + prev_id[level] = id; + node = &new_tree->nodes[level_rover[level]]; + node->num_cpus = num_cpus[level]; + num_cpus[level] = 1; + + if (cpu == last_cpu) + node->num_cpus++; + + /* Connect tree node to parent */ + if (level == CPUINFO_LVL_ROOT) + node->parent_index = -1; + else + node->parent_index = + level_rover[level - 1]; + + if (level == CPUINFO_LVL_PROC) { + node->child_end = + (cpu == last_cpu) ? cpu : prev_cpu; + } else { + node->child_end = + level_rover[level + 1] - 1; + } + + /* Initialize the next node in the same level */ + n = ++level_rover[level]; + if (n <= new_tree->level[level].end_index) { + node = &new_tree->nodes[n]; + node->id = id; + node->level = level; + + /* Connect node to child */ + node->child_start = node->child_end = + node->rover = + (level == CPUINFO_LVL_PROC) + ? cpu : level_rover[level + 1]; + } + } else + num_cpus[level]++; + } + prev_cpu = cpu; + } + + return new_tree; +} + +static void increment_rover(struct cpuinfo_tree *t, int node_index, + int root_index, const int *rover_inc_table) +{ + struct cpuinfo_node *node = &t->nodes[node_index]; + int top_level, level; + + top_level = t->nodes[root_index].level; + for (level = node->level; level >= top_level; level--) { + node->rover++; + if (node->rover <= node->child_end) + return; + + node->rover = node->child_start; + /* If parent's rover does not need to be adjusted, stop here. */ + if ((level == top_level) || + !(rover_inc_table[level] & ROVER_INC_PARENT_ON_LOOP)) + return; + + node = &t->nodes[node->parent_index]; + } +} + +static int iterate_cpu(struct cpuinfo_tree *t, unsigned int root_index) +{ + const int *rover_inc_table; + int level, new_index, index = root_index; + + switch (sun4v_chip_type) { + case SUN4V_CHIP_NIAGARA1: + case SUN4V_CHIP_NIAGARA2: + rover_inc_table = niagara_iterate_method; + break; + default: + rover_inc_table = generic_iterate_method; + } + + for (level = t->nodes[root_index].level; level < CPUINFO_LVL_MAX; + level++) { + new_index = t->nodes[index].rover; + if (rover_inc_table[level] & ROVER_INC_ON_VISIT) + increment_rover(t, index, root_index, rover_inc_table); + + index = new_index; + } + return index; +} + +static void _cpu_map_rebuild(void) +{ + int i; + + if (cpuinfo_tree) { + kfree(cpuinfo_tree); + cpuinfo_tree = NULL; + } + + cpuinfo_tree = build_cpuinfo_tree(); + if (!cpuinfo_tree) + return; + + /* Build CPU distribution map that spans all online CPUs. No need + * to check if the CPU is online, as that is done when the cpuinfo + * tree is being built. + */ + for (i = 0; i < cpuinfo_tree->nodes[0].num_cpus; i++) + cpu_distribution_map[i] = iterate_cpu(cpuinfo_tree, 0); +} + +/* Fallback if the cpuinfo tree could not be built. CPU mapping is linear + * round robin. + */ +static int simple_map_to_cpu(unsigned int index) +{ + int i, end, cpu_rover; + + cpu_rover = 0; + end = index % num_online_cpus(); + for (i = 0; i < num_possible_cpus(); i++) { + if (cpu_online(cpu_rover)) { + if (cpu_rover >= end) + return cpu_rover; + + cpu_rover++; + } + } + + /* Impossible, since num_online_cpus() <= num_possible_cpus() */ + return first_cpu(cpu_online_map); +} + +static int _map_to_cpu(unsigned int index) +{ + struct cpuinfo_node *root_node; + + if (unlikely(!cpuinfo_tree)) { + _cpu_map_rebuild(); + if (!cpuinfo_tree) + return simple_map_to_cpu(index); + } + + root_node = &cpuinfo_tree->nodes[0]; +#ifdef CONFIG_HOTPLUG_CPU + if (unlikely(root_node->num_cpus != num_online_cpus())) { + _cpu_map_rebuild(); + if (!cpuinfo_tree) + return simple_map_to_cpu(index); + } +#endif + return cpu_distribution_map[index % root_node->num_cpus]; +} + +int map_to_cpu(unsigned int index) +{ + int mapped_cpu; + unsigned long flag; + + spin_lock_irqsave(&cpu_map_lock, flag); + mapped_cpu = _map_to_cpu(index); + +#ifdef CONFIG_HOTPLUG_CPU + while (unlikely(!cpu_online(mapped_cpu))) + mapped_cpu = _map_to_cpu(index); +#endif + spin_unlock_irqrestore(&cpu_map_lock, flag); + return mapped_cpu; +} +EXPORT_SYMBOL(map_to_cpu); + +void cpu_map_rebuild(void) +{ + unsigned long flag; + + spin_lock_irqsave(&cpu_map_lock, flag); + _cpu_map_rebuild(); + spin_unlock_irqrestore(&cpu_map_lock, flag); +} diff --git a/arch/sparc/kernel/cpumap.h b/arch/sparc/kernel/cpumap.h new file mode 100644 index 000000000000..e639880ab864 --- /dev/null +++ b/arch/sparc/kernel/cpumap.h @@ -0,0 +1,16 @@ +#ifndef _CPUMAP_H +#define _CPUMAP_H + +#ifdef CONFIG_SMP +extern void cpu_map_rebuild(void); +extern int map_to_cpu(unsigned int index); +#define cpu_map_init() cpu_map_rebuild() +#else +#define cpu_map_init() do {} while (0) +static inline int map_to_cpu(unsigned int index) +{ + return raw_smp_processor_id(); +} +#endif + +#endif diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c index ebc8403b035e..524c32f97c55 100644 --- a/arch/sparc/kernel/dma.c +++ b/arch/sparc/kernel/dma.c @@ -35,8 +35,8 @@ int dma_set_mask(struct device *dev, u64 dma_mask) } EXPORT_SYMBOL(dma_set_mask); -void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) +static void *dma32_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag) { #ifdef CONFIG_PCI if (dev->bus == &pci_bus_type) @@ -44,10 +44,9 @@ void *dma_alloc_coherent(struct device *dev, size_t size, #endif return sbus_alloc_consistent(dev, size, dma_handle); } -EXPORT_SYMBOL(dma_alloc_coherent); -void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) +static void dma32_free_coherent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle) { #ifdef CONFIG_PCI if (dev->bus == &pci_bus_type) { @@ -58,38 +57,10 @@ void dma_free_coherent(struct device *dev, size_t size, #endif sbus_free_consistent(dev, size, cpu_addr, dma_handle); } -EXPORT_SYMBOL(dma_free_coherent); -dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, - size_t size, enum dma_data_direction direction) -{ -#ifdef CONFIG_PCI - if (dev->bus == &pci_bus_type) - return pci_map_single(to_pci_dev(dev), cpu_addr, - size, (int)direction); -#endif - return sbus_map_single(dev, cpu_addr, size, (int)direction); -} -EXPORT_SYMBOL(dma_map_single); - -void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, - size_t size, - enum dma_data_direction direction) -{ -#ifdef CONFIG_PCI - if (dev->bus == &pci_bus_type) { - pci_unmap_single(to_pci_dev(dev), dma_addr, - size, (int)direction); - return; - } -#endif - sbus_unmap_single(dev, dma_addr, size, (int)direction); -} -EXPORT_SYMBOL(dma_unmap_single); - -dma_addr_t dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction) +static dma_addr_t dma32_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction direction) { #ifdef CONFIG_PCI if (dev->bus == &pci_bus_type) @@ -99,10 +70,9 @@ dma_addr_t dma_map_page(struct device *dev, struct page *page, return sbus_map_single(dev, page_address(page) + offset, size, (int)direction); } -EXPORT_SYMBOL(dma_map_page); -void dma_unmap_page(struct device *dev, dma_addr_t dma_address, - size_t size, enum dma_data_direction direction) +static void dma32_unmap_page(struct device *dev, dma_addr_t dma_address, + size_t size, enum dma_data_direction direction) { #ifdef CONFIG_PCI if (dev->bus == &pci_bus_type) { @@ -113,10 +83,9 @@ void dma_unmap_page(struct device *dev, dma_addr_t dma_address, #endif sbus_unmap_single(dev, dma_address, size, (int)direction); } -EXPORT_SYMBOL(dma_unmap_page); -int dma_map_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction direction) +static int dma32_map_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction) { #ifdef CONFIG_PCI if (dev->bus == &pci_bus_type) @@ -124,10 +93,9 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, #endif return sbus_map_sg(dev, sg, nents, direction); } -EXPORT_SYMBOL(dma_map_sg); -void dma_unmap_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction direction) +void dma32_unmap_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction) { #ifdef CONFIG_PCI if (dev->bus == &pci_bus_type) { @@ -137,10 +105,10 @@ void dma_unmap_sg(struct device *dev, struct scatterlist *sg, #endif sbus_unmap_sg(dev, sg, nents, (int)direction); } -EXPORT_SYMBOL(dma_unmap_sg); -void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, - size_t size, enum dma_data_direction direction) +static void dma32_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, + size_t size, + enum dma_data_direction direction) { #ifdef CONFIG_PCI if (dev->bus == &pci_bus_type) { @@ -151,10 +119,10 @@ void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, #endif sbus_dma_sync_single_for_cpu(dev, dma_handle, size, (int) direction); } -EXPORT_SYMBOL(dma_sync_single_for_cpu); -void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, - size_t size, enum dma_data_direction direction) +static void dma32_sync_single_for_device(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction) { #ifdef CONFIG_PCI if (dev->bus == &pci_bus_type) { @@ -165,28 +133,9 @@ void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, #endif sbus_dma_sync_single_for_device(dev, dma_handle, size, (int) direction); } -EXPORT_SYMBOL(dma_sync_single_for_device); - -void dma_sync_single_range_for_cpu(struct device *dev, - dma_addr_t dma_handle, - unsigned long offset, - size_t size, - enum dma_data_direction direction) -{ - dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction); -} -EXPORT_SYMBOL(dma_sync_single_range_for_cpu); - -void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle, - unsigned long offset, size_t size, - enum dma_data_direction direction) -{ - dma_sync_single_for_device(dev, dma_handle+offset, size, direction); -} -EXPORT_SYMBOL(dma_sync_single_range_for_device); -void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, - int nelems, enum dma_data_direction direction) +static void dma32_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, + int nelems, enum dma_data_direction direction) { #ifdef CONFIG_PCI if (dev->bus == &pci_bus_type) { @@ -197,11 +146,10 @@ void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, #endif BUG(); } -EXPORT_SYMBOL(dma_sync_sg_for_cpu); -void dma_sync_sg_for_device(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction direction) +static void dma32_sync_sg_for_device(struct device *dev, + struct scatterlist *sg, int nelems, + enum dma_data_direction direction) { #ifdef CONFIG_PCI if (dev->bus == &pci_bus_type) { @@ -212,16 +160,19 @@ void dma_sync_sg_for_device(struct device *dev, #endif BUG(); } -EXPORT_SYMBOL(dma_sync_sg_for_device); -int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return (dma_addr == DMA_ERROR_CODE); -} -EXPORT_SYMBOL(dma_mapping_error); - -int dma_get_cache_alignment(void) -{ - return 32; -} -EXPORT_SYMBOL(dma_get_cache_alignment); +static const struct dma_ops dma32_dma_ops = { + .alloc_coherent = dma32_alloc_coherent, + .free_coherent = dma32_free_coherent, + .map_page = dma32_map_page, + .unmap_page = dma32_unmap_page, + .map_sg = dma32_map_sg, + .unmap_sg = dma32_unmap_sg, + .sync_single_for_cpu = dma32_sync_single_for_cpu, + .sync_single_for_device = dma32_sync_single_for_device, + .sync_sg_for_cpu = dma32_sync_sg_for_cpu, + .sync_sg_for_device = dma32_sync_sg_for_device, +}; + +const struct dma_ops *dma_ops = &dma32_dma_ops; +EXPORT_SYMBOL(dma_ops); diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c index 90350f838f05..4a700f4b79ce 100644 --- a/arch/sparc/kernel/ds.c +++ b/arch/sparc/kernel/ds.c @@ -544,7 +544,8 @@ static int __cpuinit dr_cpu_configure(struct ds_info *dp, resp_len, ncpus, mask, DR_CPU_STAT_CONFIGURED); - mdesc_fill_in_cpu_data(*mask); + mdesc_populate_present_mask(mask); + mdesc_fill_in_cpu_data(mask); for_each_cpu_mask(cpu, *mask) { int err; diff --git a/arch/sparc/kernel/ftrace.c b/arch/sparc/kernel/ftrace.c index d0218e73f982..d3b1a3076569 100644 --- a/arch/sparc/kernel/ftrace.c +++ b/arch/sparc/kernel/ftrace.c @@ -7,14 +7,10 @@ #include <asm/ftrace.h> +#ifdef CONFIG_DYNAMIC_FTRACE 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 ftrace_call_replace(unsigned long ip, unsigned long addr) { static u32 call; s32 off; @@ -22,15 +18,11 @@ unsigned char *ftrace_call_replace(unsigned long ip, unsigned long addr) off = ((s32)addr - (s32)ip); call = 0x40000000 | ((u32)off >> 2); - return (unsigned char *) &call; + return call; } -int -ftrace_modify_code(unsigned long ip, unsigned char *old_code, - unsigned char *new_code) +static int ftrace_modify_code(unsigned long ip, u32 old, u32 new) { - u32 old = *(u32 *)old_code; - u32 new = *(u32 *)new_code; u32 replaced; int faulted; @@ -59,18 +51,43 @@ ftrace_modify_code(unsigned long ip, unsigned char *old_code, return faulted; } +int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec, unsigned long addr) +{ + unsigned long ip = rec->ip; + u32 old, new; + + old = ftrace_call_replace(ip, addr); + new = ftrace_nop; + return ftrace_modify_code(ip, old, new); +} + +int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) +{ + unsigned long ip = rec->ip; + u32 old, new; + + old = ftrace_nop; + new = ftrace_call_replace(ip, addr); + return ftrace_modify_code(ip, old, new); +} + int ftrace_update_ftrace_func(ftrace_func_t func) { unsigned long ip = (unsigned long)(&ftrace_call); - unsigned char old[MCOUNT_INSN_SIZE], *new; + u32 old, new; - memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE); + old = *(u32 *) &ftrace_call; 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); + unsigned long *p = data; + + *p = 0; + return 0; } +#endif + diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S index 91bf4c7f79b9..f8f21050448b 100644 --- a/arch/sparc/kernel/head_64.S +++ b/arch/sparc/kernel/head_64.S @@ -641,28 +641,6 @@ tlb_fixup_done: /* 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 diff --git a/arch/sparc/kernel/init_task.c b/arch/sparc/kernel/init_task.c index f28cb8278e98..28125c5b3d3c 100644 --- a/arch/sparc/kernel/init_task.c +++ b/arch/sparc/kernel/init_task.c @@ -10,10 +10,7 @@ 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); struct task_struct init_task = INIT_TASK(init_task); - -EXPORT_SYMBOL(init_mm); EXPORT_SYMBOL(init_task); /* .text section in head.S is aligned at 8k boundary and this gets linked diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c index d8900e1d5aad..0aeaefe696b9 100644 --- a/arch/sparc/kernel/iommu.c +++ b/arch/sparc/kernel/iommu.c @@ -351,8 +351,9 @@ static void dma_4u_free_coherent(struct device *dev, size_t size, 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) +static dma_addr_t dma_4u_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t sz, + enum dma_data_direction direction) { struct iommu *iommu; struct strbuf *strbuf; @@ -368,7 +369,7 @@ static dma_addr_t dma_4u_map_single(struct device *dev, void *ptr, size_t sz, if (unlikely(direction == DMA_NONE)) goto bad_no_ctx; - oaddr = (unsigned long)ptr; + oaddr = (unsigned long)(page_address(page) + offset); npages = IO_PAGE_ALIGN(oaddr + sz) - (oaddr & IO_PAGE_MASK); npages >>= IO_PAGE_SHIFT; @@ -472,8 +473,8 @@ do_flush_sync: 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) +static void dma_4u_unmap_page(struct device *dev, dma_addr_t bus_addr, + size_t sz, enum dma_data_direction direction) { struct iommu *iommu; struct strbuf *strbuf; @@ -824,8 +825,8 @@ static void dma_4u_sync_sg_for_cpu(struct device *dev, 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_page = dma_4u_map_page, + .unmap_page = dma_4u_unmap_page, .map_sg = dma_4u_map_sg, .unmap_sg = dma_4u_unmap_sg, .sync_single_for_cpu = dma_4u_sync_single_for_cpu, diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index e5e78f9cfc95..bd075054942b 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -45,6 +45,7 @@ #include <asm/cacheflush.h> #include "entry.h" +#include "cpumap.h" #define NUM_IVECS (IMAP_INR + 1) @@ -256,35 +257,13 @@ static int irq_choose_cpu(unsigned int virt_irq) int cpuid; cpumask_copy(&mask, irq_desc[virt_irq].affinity); - 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_cpu_ids) - irq_rover = 0; - } - cpuid = irq_rover; - do { - if (++irq_rover >= nr_cpu_ids) - irq_rover = 0; - } while (!cpu_online(irq_rover)); - - spin_unlock_irqrestore(&irq_rover_lock, flags); + if (cpus_equal(mask, cpu_online_map)) { + cpuid = map_to_cpu(virt_irq); } else { cpumask_t tmp; cpus_and(tmp, cpu_online_map, mask); - - if (cpus_empty(tmp)) - goto do_round_robin; - - cpuid = first_cpu(tmp); + cpuid = cpus_empty(tmp) ? map_to_cpu(virt_irq) : first_cpu(tmp); } return cpuid; diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c index f0e6ed23a468..938da19dc065 100644 --- a/arch/sparc/kernel/mdesc.c +++ b/arch/sparc/kernel/mdesc.c @@ -574,7 +574,7 @@ static void __init report_platform_properties(void) mdesc_release(hp); } -static void __devinit fill_in_one_cache(cpuinfo_sparc *c, +static void __cpuinit fill_in_one_cache(cpuinfo_sparc *c, struct mdesc_handle *hp, u64 mp) { @@ -619,8 +619,7 @@ static void __devinit fill_in_one_cache(cpuinfo_sparc *c, } } -static void __devinit mark_core_ids(struct mdesc_handle *hp, u64 mp, - int core_id) +static void __cpuinit mark_core_ids(struct mdesc_handle *hp, u64 mp, int core_id) { u64 a; @@ -653,7 +652,7 @@ static void __devinit mark_core_ids(struct mdesc_handle *hp, u64 mp, } } -static void __devinit set_core_ids(struct mdesc_handle *hp) +static void __cpuinit set_core_ids(struct mdesc_handle *hp) { int idx; u64 mp; @@ -678,8 +677,7 @@ static void __devinit set_core_ids(struct mdesc_handle *hp) } } -static void __devinit mark_proc_ids(struct mdesc_handle *hp, u64 mp, - int proc_id) +static void __cpuinit mark_proc_ids(struct mdesc_handle *hp, u64 mp, int proc_id) { u64 a; @@ -698,8 +696,7 @@ static void __devinit mark_proc_ids(struct mdesc_handle *hp, u64 mp, } } -static void __devinit __set_proc_ids(struct mdesc_handle *hp, - const char *exec_unit_name) +static void __cpuinit __set_proc_ids(struct mdesc_handle *hp, const char *exec_unit_name) { int idx; u64 mp; @@ -720,13 +717,13 @@ static void __devinit __set_proc_ids(struct mdesc_handle *hp, } } -static void __devinit set_proc_ids(struct mdesc_handle *hp) +static void __cpuinit 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, +static void __cpuinit get_one_mondo_bits(const u64 *p, unsigned int *mask, unsigned char def) { u64 val; @@ -745,7 +742,7 @@ use_default: *mask = ((1U << def) * 64U) - 1U; } -static void __devinit get_mondo_data(struct mdesc_handle *hp, u64 mp, +static void __cpuinit get_mondo_data(struct mdesc_handle *hp, u64 mp, struct trap_per_cpu *tb) { const u64 *val; @@ -763,23 +760,15 @@ static void __devinit get_mondo_data(struct mdesc_handle *hp, u64 mp, get_one_mondo_bits(val, &tb->nonresum_qmask, 2); } -void __cpuinit mdesc_fill_in_cpu_data(cpumask_t mask) +static void * __cpuinit mdesc_iterate_over_cpus(void *(*func)(struct mdesc_handle *, u64, int, void *), void *arg, cpumask_t *mask) { struct mdesc_handle *hp = mdesc_grab(); + void *ret = NULL; 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; + int cpuid = *id; #ifdef CONFIG_SMP if (cpuid >= NR_CPUS) { @@ -788,62 +777,104 @@ void __cpuinit mdesc_fill_in_cpu_data(cpumask_t mask) cpuid, NR_CPUS); continue; } - if (!cpu_isset(cpuid, mask)) + 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; + ret = func(hp, mp, cpuid, arg); + if (ret) + goto out; + } +out: + mdesc_release(hp); + return ret; +} - tb = &trap_block[cpuid]; - get_mondo_data(hp, mp, tb); +static void * __cpuinit record_one_cpu(struct mdesc_handle *hp, u64 mp, int cpuid, void *arg) +{ + ncpus_probed++; +#ifdef CONFIG_SMP + set_cpu_present(cpuid, true); +#endif + return NULL; +} - mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_FWD) { - u64 j, t = mdesc_arc_target(hp, a); - const char *t_name; +void __cpuinit mdesc_populate_present_mask(cpumask_t *mask) +{ + if (tlb_type != hypervisor) + return; - t_name = mdesc_node_name(hp, t); - if (!strcmp(t_name, "cache")) { - fill_in_one_cache(c, hp, t); - continue; - } + ncpus_probed = 0; + mdesc_iterate_over_cpus(record_one_cpu, NULL, mask); +} - mdesc_for_each_arc(j, hp, t, MDESC_ARC_TYPE_FWD) { - u64 n = mdesc_arc_target(hp, j); - const char *n_name; +static void * __cpuinit fill_in_one_cpu(struct mdesc_handle *hp, u64 mp, int cpuid, void *arg) +{ + const u64 *cfreq = mdesc_get_property(hp, mp, "clock-frequency", NULL); + struct trap_per_cpu *tb; + cpuinfo_sparc *c; + u64 a; - n_name = mdesc_node_name(hp, n); - if (!strcmp(n_name, "cache")) - fill_in_one_cache(c, hp, n); - } +#ifndef CONFIG_SMP + /* 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()) + return NULL; + 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; } -#ifdef CONFIG_SMP - cpu_set(cpuid, cpu_present_map); -#endif + mdesc_for_each_arc(j, hp, t, MDESC_ARC_TYPE_FWD) { + u64 n = mdesc_arc_target(hp, j); + const char *n_name; - c->core_id = 0; - c->proc_id = -1; + n_name = mdesc_node_name(hp, n); + if (!strcmp(n_name, "cache")) + fill_in_one_cache(c, hp, n); + } } + c->core_id = 0; + c->proc_id = -1; + + return NULL; +} + +void __cpuinit mdesc_fill_in_cpu_data(cpumask_t *mask) +{ + struct mdesc_handle *hp; + + mdesc_iterate_over_cpus(fill_in_one_cpu, NULL, mask); + #ifdef CONFIG_SMP sparc64_multi_core = 1; #endif + hp = mdesc_grab(); + set_core_ids(hp); set_proc_ids(hp); - smp_fill_in_sib_core_maps(); - mdesc_release(hp); + + smp_fill_in_sib_core_maps(); } static ssize_t mdesc_read(struct file *file, char __user *buf, @@ -887,7 +918,6 @@ 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); @@ -911,7 +941,4 @@ void __init sun4v_mdesc_init(void) cur_mdesc = hp; report_platform_properties(); - - cpus_setall(mask); - mdesc_fill_in_cpu_data(mask); } diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c index c8f14c1dc521..90396702ea2c 100644 --- a/arch/sparc/kernel/of_device_32.c +++ b/arch/sparc/kernel/of_device_32.c @@ -6,159 +6,11 @@ #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> -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; -} +#include "of_device_common.h" /* * PCI bus specific translator @@ -240,47 +92,6 @@ static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags) return flags; } -/* - * SBUS bus specific translator - */ - -static int of_bus_sbus_match(struct device_node *np) -{ - struct device_node *dp = np; - - while (dp) { - if (!strcmp(dp->name, "sbus") || - !strcmp(dp->name, "sbi")) - return 1; - - /* Have a look at use_1to1_mapping(). We're trying - * to match SBUS if that's the top-level bus and we - * don't have some intervening real bus that provides - * ranges based translations. - */ - if (of_find_property(dp, "ranges", NULL) != NULL) - break; - - dp = dp->parent; - } - - return 0; -} - -static void of_bus_sbus_count_cells(struct device_node *child, - int *addrc, int *sizec) -{ - if (addrc) - *addrc = 2; - if (sizec) - *sizec = 1; -} - -static int of_bus_sbus_map(u32 *addr, const u32 *range, int na, int ns, int pna) -{ - return of_bus_default_map(addr, range, na, ns, pna); -} - static unsigned long of_bus_sbus_get_flags(const u32 *addr, unsigned long flags) { return IORESOURCE_MEM; @@ -307,7 +118,7 @@ static struct of_bus of_busses[] = { .addr_prop_name = "reg", .match = of_bus_sbus_match, .count_cells = of_bus_sbus_count_cells, - .map = of_bus_sbus_map, + .map = of_bus_default_map, .get_flags = of_bus_sbus_get_flags, }, /* Default */ diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c index 5ac287ac03de..881947e59e95 100644 --- a/arch/sparc/kernel/of_device_64.c +++ b/arch/sparc/kernel/of_device_64.c @@ -10,6 +10,8 @@ #include <linux/of_device.h> #include <linux/of_platform.h> +#include "of_device_common.h" + void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name) { unsigned long ret = res->start + offset; @@ -35,156 +37,6 @@ void of_iounmap(struct resource *res, void __iomem *base, unsigned long 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 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 */ @@ -295,42 +147,6 @@ static unsigned long of_bus_pci_get_flags(const u32 *addr, unsigned long flags) } /* - * SBUS bus specific translator - */ - -static int of_bus_sbus_match(struct device_node *np) -{ - struct device_node *dp = np; - - while (dp) { - if (!strcmp(dp->name, "sbus") || - !strcmp(dp->name, "sbi")) - return 1; - - /* Have a look at use_1to1_mapping(). We're trying - * to match SBUS if that's the top-level bus and we - * don't have some intervening real bus that provides - * ranges based translations. - */ - if (of_find_property(dp, "ranges", NULL) != NULL) - break; - - dp = dp->parent; - } - - return 0; -} - -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 diff --git a/arch/sparc/kernel/of_device_common.c b/arch/sparc/kernel/of_device_common.c new file mode 100644 index 000000000000..cb8eb799bb6c --- /dev/null +++ b/arch/sparc/kernel/of_device_common.c @@ -0,0 +1,174 @@ +#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> + +#include "of_device_common.h" + +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 void 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); +} + +/* + * Default translator (generic bus) + */ + +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. + */ +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; +} + +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; +} + +unsigned long of_bus_default_get_flags(const u32 *addr, unsigned long flags) +{ + if (flags) + return flags; + return IORESOURCE_MEM; +} + +/* + * SBUS bus specific translator + */ + +int of_bus_sbus_match(struct device_node *np) +{ + struct device_node *dp = np; + + while (dp) { + if (!strcmp(dp->name, "sbus") || + !strcmp(dp->name, "sbi")) + return 1; + + /* Have a look at use_1to1_mapping(). We're trying + * to match SBUS if that's the top-level bus and we + * don't have some intervening real bus that provides + * ranges based translations. + */ + if (of_find_property(dp, "ranges", NULL) != NULL) + break; + + dp = dp->parent; + } + + return 0; +} + +void of_bus_sbus_count_cells(struct device_node *child, int *addrc, int *sizec) +{ + if (addrc) + *addrc = 2; + if (sizec) + *sizec = 1; +} diff --git a/arch/sparc/kernel/of_device_common.h b/arch/sparc/kernel/of_device_common.h new file mode 100644 index 000000000000..cdfd23992841 --- /dev/null +++ b/arch/sparc/kernel/of_device_common.h @@ -0,0 +1,36 @@ +#ifndef _OF_DEVICE_COMMON_H +#define _OF_DEVICE_COMMON_H + +static inline u64 of_read_addr(const u32 *cell, int size) +{ + u64 r = 0; + while (size--) + r = (r << 32) | *(cell++); + return r; +} + +void of_bus_default_count_cells(struct device_node *dev, int *addrc, + int *sizec); +int of_out_of_range(const u32 *addr, const u32 *base, + const u32 *size, int na, int ns); +int of_bus_default_map(u32 *addr, const u32 *range, int na, int ns, int pna); +unsigned long of_bus_default_get_flags(const u32 *addr, unsigned long flags); + +int of_bus_sbus_match(struct device_node *np); +void of_bus_sbus_count_cells(struct device_node *child, int *addrc, int *sizec); + +/* 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); +}; + +#endif /* _OF_DEVICE_COMMON_H */ diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c index 5db5ebed35da..2485eaa23101 100644 --- a/arch/sparc/kernel/pci_sun4v.c +++ b/arch/sparc/kernel/pci_sun4v.c @@ -230,8 +230,9 @@ static void dma_4v_free_coherent(struct device *dev, size_t size, void *cpu, 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) +static dma_addr_t dma_4v_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t sz, + enum dma_data_direction direction) { struct iommu *iommu; unsigned long flags, npages, oaddr; @@ -245,7 +246,7 @@ static dma_addr_t dma_4v_map_single(struct device *dev, void *ptr, size_t sz, if (unlikely(direction == DMA_NONE)) goto bad; - oaddr = (unsigned long)ptr; + oaddr = (unsigned long)(page_address(page) + offset); npages = IO_PAGE_ALIGN(oaddr + sz) - (oaddr & IO_PAGE_MASK); npages >>= IO_PAGE_SHIFT; @@ -294,8 +295,8 @@ iommu_map_fail: 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) +static void dma_4v_unmap_page(struct device *dev, dma_addr_t bus_addr, + size_t sz, enum dma_data_direction direction) { struct pci_pbm_info *pbm; struct iommu *iommu; @@ -537,8 +538,8 @@ static void dma_4v_sync_sg_for_cpu(struct device *dev, 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_page = dma_4v_map_page, + .unmap_page = dma_4v_unmap_page, .map_sg = dma_4v_map_sg, .unmap_sg = dma_4v_unmap_sg, .sync_single_for_cpu = dma_4v_sync_single_for_cpu, diff --git a/arch/sparc/kernel/prom.h b/arch/sparc/kernel/prom.h index bb0f0fda6cab..453397fe5e14 100644 --- a/arch/sparc/kernel/prom.h +++ b/arch/sparc/kernel/prom.h @@ -22,7 +22,6 @@ static inline int is_root_node(const struct device_node *dp) extern char *build_path_component(struct device_node *dp); extern void of_console_init(void); -extern void of_fill_in_cpu_data(void); extern unsigned int prom_early_allocated; diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c index ca55c7012f77..fb06ac2bd38f 100644 --- a/arch/sparc/kernel/prom_64.c +++ b/arch/sparc/kernel/prom_64.c @@ -374,75 +374,26 @@ 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; -} - -void __init of_fill_in_cpu_data(void) +static void *of_iterate_over_cpus(void *(*func)(struct device_node *, int, int), int arg) { struct device_node *dp; const char *mid_prop; - if (tlb_type == hypervisor) - return; - 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; + void *ret; - 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 " @@ -450,79 +401,142 @@ void __init of_fill_in_cpu_data(void) 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 + ret = func(dp, cpuid, arg); + if (ret) + return ret; + } + return NULL; +} - 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; +static void *check_cpu_node(struct device_node *dp, int cpuid, int id) +{ + if (id == cpuid) + return dp; + return NULL; +} + +struct device_node *of_find_node_by_cpuid(int cpuid) +{ + return of_iterate_over_cpus(check_cpu_node, cpuid); +} + +static void *record_one_cpu(struct device_node *dp, int cpuid, int arg) +{ + ncpus_probed++; #ifdef CONFIG_SMP - sparc64_multi_core = 1; + set_cpu_present(cpuid, true); + set_cpu_possible(cpuid, true); #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); + return NULL; +} - 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); +void __init of_populate_present_mask(void) +{ + if (tlb_type == hypervisor) + return; + + ncpus_probed = 0; + of_iterate_over_cpus(record_one_cpu, 0); +} +static void *fill_in_one_cpu(struct device_node *dp, int cpuid, int arg) +{ + struct device_node *portid_parent = NULL; + int portid = -1; + + if (of_find_property(dp, "cpuid", NULL)) { + 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; + } + } + +#ifndef CONFIG_SMP + /* 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()) + return NULL; + 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(dp, "ecache-size", + of_getintprop_default(portid_parent, + "l2-cache-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; + 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 - set_cpu_present(cpuid, true); - set_cpu_possible(cpuid, true); + 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; } + return NULL; +} + +void __init of_fill_in_cpu_data(void) +{ + if (tlb_type == hypervisor) + return; + + of_iterate_over_cpus(fill_in_one_cpu, 0); + smp_fill_in_sib_core_maps(); } diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c index ff7b591c8946..0fb5789d43c8 100644 --- a/arch/sparc/kernel/prom_common.c +++ b/arch/sparc/kernel/prom_common.c @@ -313,6 +313,4 @@ void __init prom_build_devicetree(void) printk("PROM: Built device tree with %u bytes of memory.\n", prom_early_allocated); - - of_fill_in_cpu_data(); } diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index f7642e5a94db..fa44eaf8d897 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -20,7 +20,8 @@ #include <linux/cache.h> #include <linux/jiffies.h> #include <linux/profile.h> -#include <linux/lmb.h> +#include <linux/bootmem.h> +#include <linux/vmalloc.h> #include <linux/cpu.h> #include <asm/head.h> @@ -47,6 +48,8 @@ #include <asm/ldc.h> #include <asm/hypervisor.h> +#include "cpumap.h" + int sparc64_multi_core __read_mostly; DEFINE_PER_CPU(cpumask_t, cpu_sibling_map) = CPU_MASK_NONE; @@ -278,7 +281,7 @@ static unsigned long kimage_addr_to_ra(void *p) return kern_base + (val - KERNBASE); } -static void __cpuinit ldom_startcpu_cpuid(unsigned int cpu, unsigned long thread_reg) +static void __cpuinit ldom_startcpu_cpuid(unsigned int cpu, unsigned long thread_reg, void **descrp) { extern unsigned long sparc64_ttable_tl0; extern unsigned long kern_locked_tte_data; @@ -298,12 +301,12 @@ static void __cpuinit ldom_startcpu_cpuid(unsigned int cpu, unsigned long thread "hvtramp_descr.\n"); return; } + *descrp = hdesc; 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); @@ -341,12 +344,12 @@ 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; + void *descr = NULL; int timeout, ret; p = fork_idle(cpu); @@ -359,7 +362,8 @@ static int __cpuinit smp_boot_one_cpu(unsigned int cpu) #if defined(CONFIG_SUN_LDOMS) && defined(CONFIG_HOTPLUG_CPU) if (ldom_domaining_enabled) ldom_startcpu_cpuid(cpu, - (unsigned long) cpu_new_thread); + (unsigned long) cpu_new_thread, + &descr); else #endif prom_startcpu_cpuid(cpu, entry, cookie); @@ -383,10 +387,7 @@ static int __cpuinit smp_boot_one_cpu(unsigned int cpu) } cpu_new_thread = NULL; - if (tb->hdesc) { - kfree(tb->hdesc); - tb->hdesc = NULL; - } + kfree(descr); return ret; } @@ -1315,6 +1316,8 @@ int __cpu_disable(void) cpu_clear(cpu, cpu_online_map); ipi_call_unlock(); + cpu_map_rebuild(); + return 0; } @@ -1373,36 +1376,171 @@ void smp_send_stop(void) { } -unsigned long __per_cpu_base __read_mostly; -unsigned long __per_cpu_shift __read_mostly; +/** + * pcpu_alloc_bootmem - NUMA friendly alloc_bootmem wrapper for percpu + * @cpu: cpu to allocate for + * @size: size allocation in bytes + * @align: alignment + * + * Allocate @size bytes aligned at @align for cpu @cpu. This wrapper + * does the right thing for NUMA regardless of the current + * configuration. + * + * RETURNS: + * Pointer to the allocated area on success, NULL on failure. + */ +static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size, + unsigned long align) +{ + const unsigned long goal = __pa(MAX_DMA_ADDRESS); +#ifdef CONFIG_NEED_MULTIPLE_NODES + int node = cpu_to_node(cpu); + void *ptr; + + if (!node_online(node) || !NODE_DATA(node)) { + ptr = __alloc_bootmem(size, align, goal); + pr_info("cpu %d has no node %d or node-local memory\n", + cpu, node); + pr_debug("per cpu data for cpu%d %lu bytes at %016lx\n", + cpu, size, __pa(ptr)); + } else { + ptr = __alloc_bootmem_node(NODE_DATA(node), + size, align, goal); + pr_debug("per cpu data for cpu%d %lu bytes on node%d at " + "%016lx\n", cpu, size, node, __pa(ptr)); + } + return ptr; +#else + return __alloc_bootmem(size, align, goal); +#endif +} -EXPORT_SYMBOL(__per_cpu_base); -EXPORT_SYMBOL(__per_cpu_shift); +static size_t pcpur_size __initdata; +static void **pcpur_ptrs __initdata; -void __init real_setup_per_cpu_areas(void) +static struct page * __init pcpur_get_page(unsigned int cpu, int pageno) { - unsigned long paddr, goal, size, i; - char *ptr; + size_t off = (size_t)pageno << PAGE_SHIFT; - /* Copy section for each CPU (we discard the original) */ - goal = PERCPU_ENOUGH_ROOM; + if (off >= pcpur_size) + return NULL; - __per_cpu_shift = PAGE_SHIFT; - for (size = PAGE_SIZE; size < goal; size <<= 1UL) - __per_cpu_shift++; + return virt_to_page(pcpur_ptrs[cpu] + off); +} + +#define PCPU_CHUNK_SIZE (4UL * 1024UL * 1024UL) + +static void __init pcpu_map_range(unsigned long start, unsigned long end, + struct page *page) +{ + unsigned long pfn = page_to_pfn(page); + unsigned long pte_base; + + BUG_ON((pfn<<PAGE_SHIFT)&(PCPU_CHUNK_SIZE - 1UL)); + + pte_base = (_PAGE_VALID | _PAGE_SZ4MB_4U | + _PAGE_CP_4U | _PAGE_CV_4U | + _PAGE_P_4U | _PAGE_W_4U); + if (tlb_type == hypervisor) + pte_base = (_PAGE_VALID | _PAGE_SZ4MB_4V | + _PAGE_CP_4V | _PAGE_CV_4V | + _PAGE_P_4V | _PAGE_W_4V); + + while (start < end) { + pgd_t *pgd = pgd_offset_k(start); + unsigned long this_end; + pud_t *pud; + pmd_t *pmd; + pte_t *pte; + + pud = pud_offset(pgd, start); + if (pud_none(*pud)) { + pmd_t *new; + + new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); + pud_populate(&init_mm, pud, new); + } + + pmd = pmd_offset(pud, start); + if (!pmd_present(*pmd)) { + pte_t *new; + + new = __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, PAGE_SIZE); + pmd_populate_kernel(&init_mm, pmd, new); + } - paddr = lmb_alloc(size * NR_CPUS, PAGE_SIZE); - if (!paddr) { - prom_printf("Cannot allocate per-cpu memory.\n"); - prom_halt(); + pte = pte_offset_kernel(pmd, start); + this_end = (start + PMD_SIZE) & PMD_MASK; + if (this_end > end) + this_end = end; + + while (start < this_end) { + unsigned long paddr = pfn << PAGE_SHIFT; + + pte_val(*pte) = (paddr | pte_base); + + start += PAGE_SIZE; + pte++; + pfn++; + } + } +} + +void __init setup_per_cpu_areas(void) +{ + size_t dyn_size, static_size = __per_cpu_end - __per_cpu_start; + static struct vm_struct vm; + unsigned long delta, cpu; + size_t pcpu_unit_size; + size_t ptrs_size; + + pcpur_size = PFN_ALIGN(static_size + PERCPU_MODULE_RESERVE + + PERCPU_DYNAMIC_RESERVE); + dyn_size = pcpur_size - static_size - PERCPU_MODULE_RESERVE; + + + ptrs_size = PFN_ALIGN(num_possible_cpus() * sizeof(pcpur_ptrs[0])); + pcpur_ptrs = alloc_bootmem(ptrs_size); + + for_each_possible_cpu(cpu) { + pcpur_ptrs[cpu] = pcpu_alloc_bootmem(cpu, PCPU_CHUNK_SIZE, + PCPU_CHUNK_SIZE); + + free_bootmem(__pa(pcpur_ptrs[cpu] + pcpur_size), + PCPU_CHUNK_SIZE - pcpur_size); + + memcpy(pcpur_ptrs[cpu], __per_cpu_load, static_size); } - ptr = __va(paddr); - __per_cpu_base = ptr - __per_cpu_start; + /* allocate address and map */ + vm.flags = VM_ALLOC; + vm.size = num_possible_cpus() * PCPU_CHUNK_SIZE; + vm_area_register_early(&vm, PCPU_CHUNK_SIZE); + + for_each_possible_cpu(cpu) { + unsigned long start = (unsigned long) vm.addr; + unsigned long end; + + start += cpu * PCPU_CHUNK_SIZE; + end = start + PCPU_CHUNK_SIZE; + pcpu_map_range(start, end, virt_to_page(pcpur_ptrs[cpu])); + } - for (i = 0; i < NR_CPUS; i++, ptr += size) - memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start); + pcpu_unit_size = pcpu_setup_first_chunk(pcpur_get_page, static_size, + PERCPU_MODULE_RESERVE, dyn_size, + PCPU_CHUNK_SIZE, vm.addr, NULL); + + free_bootmem(__pa(pcpur_ptrs), ptrs_size); + + delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start; + for_each_possible_cpu(cpu) { + __per_cpu_offset(cpu) = delta + cpu * pcpu_unit_size; + } /* Setup %g5 for the boot cpu. */ __local_per_cpu_offset = __per_cpu_offset(smp_processor_id()); + + of_fill_in_cpu_data(); + if (tlb_type == hypervisor) + mdesc_fill_in_cpu_data(cpu_all_mask); } diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S index 00ec3b15f38c..690901657291 100644 --- a/arch/sparc/kernel/systbls_32.S +++ b/arch/sparc/kernel/systbls_32.S @@ -81,4 +81,6 @@ sys_call_table: /*305*/ .long sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait /*310*/ .long sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate /*315*/ .long sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1 -/*320*/ .long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv, sys_pwritev +/*320*/ .long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv +/*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo + diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 82b5bf85b9d2..6b3ee88e253c 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -82,7 +82,8 @@ sys_call_table32: .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, compat_sys_preadv, compat_sys_pwritev +/*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, compat_sys_preadv + .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo #endif /* CONFIG_COMPAT */ @@ -156,4 +157,5 @@ sys_call_table: .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, sys_preadv, sys_pwritev +/*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv + .word sys_pwritev, sys_rt_tgsigqueueinfo diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c index d809c4ebb48f..10f7bb9fc140 100644 --- a/arch/sparc/kernel/traps_64.c +++ b/arch/sparc/kernel/traps_64.c @@ -2509,6 +2509,7 @@ void do_getpsr(struct pt_regs *regs) } struct trap_per_cpu trap_block[NR_CPUS]; +EXPORT_SYMBOL(trap_block); /* This can get invoked before sched_init() so play it super safe * and use hard_smp_processor_id(). @@ -2530,84 +2531,97 @@ extern void tsb_config_offsets_are_bolixed_dave(void); 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(); + BUILD_BUG_ON(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))); + + BUILD_BUG_ON(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_PER_CPU_BASE != + offsetof(struct trap_per_cpu, __per_cpu_base))); + + BUILD_BUG_ON((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))); /* Attach to the address space of init_task. On SMP we * do this in smp.c:smp_callin for other cpus. diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index cbb282dab5a7..26bb3919ff1f 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -358,6 +358,7 @@ void __init paging_init(void) protection_map[15] = PAGE_SHARED; btfixup(); prom_build_devicetree(); + of_fill_in_cpu_data(); device_scan(); } diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index f26a352c08a0..ca92e2f54e4d 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -1679,11 +1679,6 @@ pgd_t swapper_pg_dir[2048]; static void sun4u_pgprot_init(void); static void sun4v_pgprot_init(void); -/* Dummy function */ -void __init setup_per_cpu_areas(void) -{ -} - void __init paging_init(void) { unsigned long end_pfn, shift, phys_base; @@ -1799,16 +1794,13 @@ void __init paging_init(void) if (tlb_type == hypervisor) sun4v_ktsb_register(); - /* We must setup the per-cpu areas before we pull in the - * PROM and the MDESC. The code there fills in cpu and - * other information into per-cpu data structures. - */ - real_setup_per_cpu_areas(); - prom_build_devicetree(); + of_populate_present_mask(); - if (tlb_type == hypervisor) + if (tlb_type == hypervisor) { sun4v_mdesc_init(); + mdesc_populate_present_mask(cpu_all_mask); + } /* Once the OF device tree and MDESC have been setup, we know * the list of possible cpus. Therefore we can allocate the diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index 06c9a7d98206..ade4eb373bdd 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -19,6 +19,7 @@ #include <linux/fs.h> #include <linux/seq_file.h> #include <linux/kdebug.h> +#include <linux/log2.h> #include <asm/bitext.h> #include <asm/page.h> @@ -349,7 +350,7 @@ static void srmmu_free_nocache(unsigned long vaddr, int size) vaddr, srmmu_nocache_end); BUG(); } - if (size & (size-1)) { + if (!is_power_of_2(size)) { printk("Size 0x%x is not a power of 2\n", size); BUG(); } diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c index 434ba121e3c5..3b44b47c7e1d 100644 --- a/arch/um/drivers/net_kern.c +++ b/arch/um/drivers/net_kern.c @@ -360,7 +360,7 @@ static struct platform_driver uml_net_driver = { static void net_device_release(struct device *dev) { - struct uml_net *device = dev->driver_data; + struct uml_net *device = dev_get_drvdata(dev); struct net_device *netdev = device->dev; struct uml_net_private *lp = netdev_priv(netdev); @@ -440,7 +440,7 @@ static void eth_configure(int n, void *init, char *mac, device->pdev.id = n; device->pdev.name = DRIVER_NAME; device->pdev.dev.release = net_device_release; - device->pdev.dev.driver_data = device; + dev_set_drvdata(&device->pdev.dev, device); if (platform_device_register(&device->pdev)) goto out_free_netdev; SET_NETDEV_DEV(dev,&device->pdev.dev); diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index aa9e926e13d7..8f05d4d9da12 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -778,7 +778,7 @@ static int ubd_open_dev(struct ubd *ubd_dev) static void ubd_device_release(struct device *dev) { - struct ubd *ubd_dev = dev->driver_data; + struct ubd *ubd_dev = dev_get_drvdata(dev); blk_cleanup_queue(ubd_dev->queue); *ubd_dev = ((struct ubd) DEFAULT_UBD); @@ -807,7 +807,7 @@ static int ubd_disk_register(int major, u64 size, int unit, ubd_devs[unit].pdev.id = unit; ubd_devs[unit].pdev.name = DRIVER_NAME; ubd_devs[unit].pdev.dev.release = ubd_device_release; - ubd_devs[unit].pdev.dev.driver_data = &ubd_devs[unit]; + dev_set_drvdata(&ubd_devs[unit].pdev.dev, &ubd_devs[unit]); platform_device_register(&ubd_devs[unit].pdev); disk->driverfs_dev = &ubd_devs[unit].pdev.dev; } diff --git a/arch/um/include/shared/init.h b/arch/um/include/shared/init.h index 37dd097c16c0..b3906f860a87 100644 --- a/arch/um/include/shared/init.h +++ b/arch/um/include/shared/init.h @@ -27,7 +27,7 @@ * sign followed by value, e.g.: * * static int init_variable __initdata = 0; - * static char linux_logo[] __initdata = { 0x32, 0x36, ... }; + * static const char linux_logo[] __initconst = { 0x32, 0x36, ... }; * * Don't forget to initialize data not at file scope, i.e. within a function, * as gcc otherwise puts the data into the bss section and not into the init diff --git a/arch/um/include/shared/net_user.h b/arch/um/include/shared/net_user.h index 63bee158cd8e..3dabbe128e40 100644 --- a/arch/um/include/shared/net_user.h +++ b/arch/um/include/shared/net_user.h @@ -8,7 +8,7 @@ #define ETH_ADDR_LEN (6) #define ETH_HEADER_ETHERTAP (16) -#define ETH_HEADER_OTHER (14) +#define ETH_HEADER_OTHER (26) /* 14 for ethernet + VLAN + MPLS for crazy people */ #define ETH_MAX_PACKET (1500) #define UML_NET_VERSION (4) diff --git a/arch/um/kernel/init_task.c b/arch/um/kernel/init_task.c index 806d381947bf..b25121b537d8 100644 --- a/arch/um/kernel/init_task.c +++ b/arch/um/kernel/init_task.c @@ -10,11 +10,8 @@ #include "linux/mqueue.h" #include "asm/uaccess.h" -struct mm_struct init_mm = INIT_MM(init_mm); static struct signal_struct init_signals = INIT_SIGNALS(init_signals); static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -EXPORT_SYMBOL(init_mm); - /* * Initial task structure. * diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c index 336b61569072..454cdb43e351 100644 --- a/arch/um/kernel/irq.c +++ b/arch/um/kernel/irq.c @@ -358,7 +358,7 @@ EXPORT_SYMBOL(um_request_irq); EXPORT_SYMBOL(reactivate_fd); /* - * hw_interrupt_type must define (startup || enable) && + * irq_chip must define (startup || enable) && * (shutdown || disable) && end */ static void dummy(unsigned int irq) @@ -366,7 +366,7 @@ static void dummy(unsigned int irq) } /* This is used for everything else than the timer. */ -static struct hw_interrupt_type normal_irq_type = { +static struct irq_chip normal_irq_type = { .typename = "SIGIO", .release = free_irq_by_irq_and_dev, .disable = dummy, @@ -375,7 +375,7 @@ static struct hw_interrupt_type normal_irq_type = { .end = dummy }; -static struct hw_interrupt_type SIGVTALRM_irq_type = { +static struct irq_chip SIGVTALRM_irq_type = { .typename = "SIGVTALRM", .release = free_irq_by_irq_and_dev, .shutdown = dummy, /* never called */ diff --git a/arch/um/sys-i386/stub.S b/arch/um/sys-i386/stub.S index c41b04bf5fa0..54a36ec20cb7 100644 --- a/arch/um/sys-i386/stub.S +++ b/arch/um/sys-i386/stub.S @@ -1,7 +1,7 @@ #include "as-layout.h" .globl syscall_stub -.section .__syscall_stub, "x" +.section .__syscall_stub, "ax" .globl batch_syscall_stub batch_syscall_stub: diff --git a/arch/um/sys-x86_64/asm/elf.h b/arch/um/sys-x86_64/asm/elf.h index 6e8a9195e952..04b9e87c8dad 100644 --- a/arch/um/sys-x86_64/asm/elf.h +++ b/arch/um/sys-x86_64/asm/elf.h @@ -66,28 +66,28 @@ typedef struct user_i387_struct elf_fpregset_t; PT_REGS_R15(regs) = 0; \ } while (0) -#define ELF_CORE_COPY_REGS(pr_reg, regs) \ - (pr_reg)[0] = (regs)->regs.gp[0]; \ - (pr_reg)[1] = (regs)->regs.gp[1]; \ - (pr_reg)[2] = (regs)->regs.gp[2]; \ - (pr_reg)[3] = (regs)->regs.gp[3]; \ - (pr_reg)[4] = (regs)->regs.gp[4]; \ - (pr_reg)[5] = (regs)->regs.gp[5]; \ - (pr_reg)[6] = (regs)->regs.gp[6]; \ - (pr_reg)[7] = (regs)->regs.gp[7]; \ - (pr_reg)[8] = (regs)->regs.gp[8]; \ - (pr_reg)[9] = (regs)->regs.gp[9]; \ - (pr_reg)[10] = (regs)->regs.gp[10]; \ - (pr_reg)[11] = (regs)->regs.gp[11]; \ - (pr_reg)[12] = (regs)->regs.gp[12]; \ - (pr_reg)[13] = (regs)->regs.gp[13]; \ - (pr_reg)[14] = (regs)->regs.gp[14]; \ - (pr_reg)[15] = (regs)->regs.gp[15]; \ - (pr_reg)[16] = (regs)->regs.gp[16]; \ - (pr_reg)[17] = (regs)->regs.gp[17]; \ - (pr_reg)[18] = (regs)->regs.gp[18]; \ - (pr_reg)[19] = (regs)->regs.gp[19]; \ - (pr_reg)[20] = (regs)->regs.gp[20]; \ +#define ELF_CORE_COPY_REGS(pr_reg, _regs) \ + (pr_reg)[0] = (_regs)->regs.gp[0]; \ + (pr_reg)[1] = (_regs)->regs.gp[1]; \ + (pr_reg)[2] = (_regs)->regs.gp[2]; \ + (pr_reg)[3] = (_regs)->regs.gp[3]; \ + (pr_reg)[4] = (_regs)->regs.gp[4]; \ + (pr_reg)[5] = (_regs)->regs.gp[5]; \ + (pr_reg)[6] = (_regs)->regs.gp[6]; \ + (pr_reg)[7] = (_regs)->regs.gp[7]; \ + (pr_reg)[8] = (_regs)->regs.gp[8]; \ + (pr_reg)[9] = (_regs)->regs.gp[9]; \ + (pr_reg)[10] = (_regs)->regs.gp[10]; \ + (pr_reg)[11] = (_regs)->regs.gp[11]; \ + (pr_reg)[12] = (_regs)->regs.gp[12]; \ + (pr_reg)[13] = (_regs)->regs.gp[13]; \ + (pr_reg)[14] = (_regs)->regs.gp[14]; \ + (pr_reg)[15] = (_regs)->regs.gp[15]; \ + (pr_reg)[16] = (_regs)->regs.gp[16]; \ + (pr_reg)[17] = (_regs)->regs.gp[17]; \ + (pr_reg)[18] = (_regs)->regs.gp[18]; \ + (pr_reg)[19] = (_regs)->regs.gp[19]; \ + (pr_reg)[20] = (_regs)->regs.gp[20]; \ (pr_reg)[21] = current->thread.arch.fs; \ (pr_reg)[22] = 0; \ (pr_reg)[23] = 0; \ diff --git a/arch/um/sys-x86_64/stub.S b/arch/um/sys-x86_64/stub.S index 6d9edf9fabce..20e4a96a6dcb 100644 --- a/arch/um/sys-x86_64/stub.S +++ b/arch/um/sys-x86_64/stub.S @@ -1,7 +1,7 @@ #include "as-layout.h" .globl syscall_stub -.section .__syscall_stub, "x" +.section .__syscall_stub, "ax" syscall_stub: syscall /* We don't have 64-bit constants, so this constructs the address diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 356d2ec8e2fb..cf42fc305419 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -46,6 +46,7 @@ config X86 select HAVE_KERNEL_GZIP select HAVE_KERNEL_BZIP2 select HAVE_KERNEL_LZMA + select HAVE_ARCH_KMEMCHECK config OUTPUT_FORMAT string diff --git a/arch/x86/Makefile b/arch/x86/Makefile index edbd0ca62067..1b68659c41b4 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -81,6 +81,11 @@ ifdef CONFIG_CC_STACKPROTECTOR endif endif +# Don't unroll struct assignments with kmemcheck enabled +ifeq ($(CONFIG_KMEMCHECK),y) + KBUILD_CFLAGS += $(call cc-option,-fno-builtin-memcpy) +endif + # Stackpointer is addressed different for 32 bit and 64 bit x86 sp-$(CONFIG_X86_32) := esp sp-$(CONFIG_X86_64) := rsp diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index f82fdc412c64..b93405b228b4 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -6,6 +6,7 @@ * Documentation/DMA-API.txt for documentation. */ +#include <linux/kmemcheck.h> #include <linux/scatterlist.h> #include <linux/dma-debug.h> #include <linux/dma-attrs.h> @@ -60,6 +61,7 @@ dma_map_single(struct device *hwdev, void *ptr, size_t size, dma_addr_t addr; BUG_ON(!valid_dma_direction(dir)); + kmemcheck_mark_initialized(ptr, size); addr = ops->map_page(hwdev, virt_to_page(ptr), (unsigned long)ptr & ~PAGE_MASK, size, dir, NULL); @@ -87,8 +89,12 @@ dma_map_sg(struct device *hwdev, struct scatterlist *sg, { struct dma_map_ops *ops = get_dma_ops(hwdev); int ents; + struct scatterlist *s; + int i; BUG_ON(!valid_dma_direction(dir)); + for_each_sg(sg, s, nents, i) + kmemcheck_mark_initialized(sg_virt(s), s->length); ents = ops->map_sg(hwdev, sg, nents, dir, NULL); debug_dma_map_sg(hwdev, sg, nents, ents, dir); @@ -200,6 +206,7 @@ static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, dma_addr_t addr; BUG_ON(!valid_dma_direction(dir)); + kmemcheck_mark_initialized(page_address(page) + offset, size); addr = ops->map_page(dev, page, offset, size, dir, NULL); debug_dma_map_page(dev, page, offset, size, dir, addr, false); diff --git a/arch/x86/include/asm/kmap_types.h b/arch/x86/include/asm/kmap_types.h index 5759c165a5cf..9e00a731a7fb 100644 --- a/arch/x86/include/asm/kmap_types.h +++ b/arch/x86/include/asm/kmap_types.h @@ -2,28 +2,11 @@ #define _ASM_X86_KMAP_TYPES_H #if defined(CONFIG_X86_32) && defined(CONFIG_DEBUG_HIGHMEM) -# define D(n) __KM_FENCE_##n , -#else -# define D(n) +#define __WITH_KM_FENCE #endif -enum km_type { -D(0) KM_BOUNCE_READ, -D(1) KM_SKB_SUNRPC_DATA, -D(2) KM_SKB_DATA_SOFTIRQ, -D(3) KM_USER0, -D(4) KM_USER1, -D(5) KM_BIO_SRC_IRQ, -D(6) KM_BIO_DST_IRQ, -D(7) KM_PTE0, -D(8) KM_PTE1, -D(9) KM_IRQ0, -D(10) KM_IRQ1, -D(11) KM_SOFTIRQ0, -D(12) KM_SOFTIRQ1, -D(13) KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> -#undef D +#undef __WITH_KM_FENCE #endif /* _ASM_X86_KMAP_TYPES_H */ diff --git a/arch/x86/include/asm/kmemcheck.h b/arch/x86/include/asm/kmemcheck.h new file mode 100644 index 000000000000..ed01518f297e --- /dev/null +++ b/arch/x86/include/asm/kmemcheck.h @@ -0,0 +1,42 @@ +#ifndef ASM_X86_KMEMCHECK_H +#define ASM_X86_KMEMCHECK_H + +#include <linux/types.h> +#include <asm/ptrace.h> + +#ifdef CONFIG_KMEMCHECK +bool kmemcheck_active(struct pt_regs *regs); + +void kmemcheck_show(struct pt_regs *regs); +void kmemcheck_hide(struct pt_regs *regs); + +bool kmemcheck_fault(struct pt_regs *regs, + unsigned long address, unsigned long error_code); +bool kmemcheck_trap(struct pt_regs *regs); +#else +static inline bool kmemcheck_active(struct pt_regs *regs) +{ + return false; +} + +static inline void kmemcheck_show(struct pt_regs *regs) +{ +} + +static inline void kmemcheck_hide(struct pt_regs *regs) +{ +} + +static inline bool kmemcheck_fault(struct pt_regs *regs, + unsigned long address, unsigned long error_code) +{ + return false; +} + +static inline bool kmemcheck_trap(struct pt_regs *regs) +{ + return false; +} +#endif /* CONFIG_KMEMCHECK */ + +#endif diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 18ef7ebf2631..3cc06e3fceb8 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -317,6 +317,11 @@ static inline int pte_present(pte_t a) return pte_flags(a) & (_PAGE_PRESENT | _PAGE_PROTNONE); } +static inline int pte_hidden(pte_t pte) +{ + return pte_flags(pte) & _PAGE_HIDDEN; +} + static inline int pmd_present(pmd_t pmd) { return pmd_flags(pmd) & _PAGE_PRESENT; diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h index 4d258ad76a0f..54cb697f4900 100644 --- a/arch/x86/include/asm/pgtable_types.h +++ b/arch/x86/include/asm/pgtable_types.h @@ -18,7 +18,7 @@ #define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */ #define _PAGE_BIT_UNUSED1 9 /* available for programmer */ #define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */ -#define _PAGE_BIT_UNUSED3 11 +#define _PAGE_BIT_HIDDEN 11 /* hidden by kmemcheck */ #define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */ #define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1 #define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1 @@ -41,13 +41,18 @@ #define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL) #define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1) #define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP) -#define _PAGE_UNUSED3 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3) #define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT) #define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE) #define _PAGE_SPECIAL (_AT(pteval_t, 1) << _PAGE_BIT_SPECIAL) #define _PAGE_CPA_TEST (_AT(pteval_t, 1) << _PAGE_BIT_CPA_TEST) #define __HAVE_ARCH_PTE_SPECIAL +#ifdef CONFIG_KMEMCHECK +#define _PAGE_HIDDEN (_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN) +#else +#define _PAGE_HIDDEN (_AT(pteval_t, 0)) +#endif + #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX) #else diff --git a/arch/x86/include/asm/string_32.h b/arch/x86/include/asm/string_32.h index 0e0e3ba827f7..c86f452256de 100644 --- a/arch/x86/include/asm/string_32.h +++ b/arch/x86/include/asm/string_32.h @@ -177,10 +177,18 @@ static inline void *__memcpy3d(void *to, const void *from, size_t len) * No 3D Now! */ +#ifndef CONFIG_KMEMCHECK #define memcpy(t, f, n) \ (__builtin_constant_p((n)) \ ? __constant_memcpy((t), (f), (n)) \ : __memcpy((t), (f), (n))) +#else +/* + * kmemcheck becomes very happy if we use the REP instructions unconditionally, + * because it means that we know both memory operands in advance. + */ +#define memcpy(t, f, n) __memcpy((t), (f), (n)) +#endif #endif diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h index 2afe164bf1e6..19e2c468fc2c 100644 --- a/arch/x86/include/asm/string_64.h +++ b/arch/x86/include/asm/string_64.h @@ -27,6 +27,7 @@ static __always_inline void *__inline_memcpy(void *to, const void *from, size_t function. */ #define __HAVE_ARCH_MEMCPY 1 +#ifndef CONFIG_KMEMCHECK #if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4 extern void *memcpy(void *to, const void *from, size_t len); #else @@ -42,6 +43,13 @@ extern void *__memcpy(void *to, const void *from, size_t len); __ret; \ }) #endif +#else +/* + * kmemcheck becomes very happy if we use the REP instructions unconditionally, + * because it means that we know both memory operands in advance. + */ +#define memcpy(dst, src, len) __inline_memcpy((dst), (src), (len)) +#endif #define __HAVE_ARCH_MEMSET void *memset(void *s, int c, size_t n); diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index 602c769fc98c..b0783520988b 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -154,9 +154,9 @@ struct thread_info { /* thread information allocation */ #ifdef CONFIG_DEBUG_STACK_USAGE -#define THREAD_FLAGS (GFP_KERNEL | __GFP_ZERO) +#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO) #else -#define THREAD_FLAGS GFP_KERNEL +#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK) #endif #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR diff --git a/arch/x86/include/asm/timex.h b/arch/x86/include/asm/timex.h index b5c9d45c981f..1375cfc93960 100644 --- a/arch/x86/include/asm/timex.h +++ b/arch/x86/include/asm/timex.h @@ -4,9 +4,7 @@ #include <asm/processor.h> #include <asm/tsc.h> -/* The PIT ticks at this frequency (in HZ): */ -#define PIT_TICK_RATE 1193182 - +/* Assume we use the PIT time source for the clock tick */ #define CLOCK_TICK_RATE PIT_TICK_RATE #define ARCH_HAS_READ_CURRENT_TIMER diff --git a/arch/x86/include/asm/xor.h b/arch/x86/include/asm/xor.h index 11b3bb86e17b..7fcf6f3dbcc3 100644 --- a/arch/x86/include/asm/xor.h +++ b/arch/x86/include/asm/xor.h @@ -1,5 +1,10 @@ +#ifdef CONFIG_KMEMCHECK +/* kmemcheck doesn't handle MMX/SSE/SSE2 instructions */ +# include <asm-generic/xor.h> +#else #ifdef CONFIG_X86_32 # include "xor_32.h" #else # include "xor_64.h" #endif +#endif diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 3ffdcfa9abdf..9fa33886c0d7 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -487,7 +487,6 @@ out: static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c) { char *v = c->x86_vendor_id; - static int printed; int i; for (i = 0; i < X86_VENDOR_NUM; i++) { @@ -504,13 +503,9 @@ static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c) } } - if (!printed) { - printed++; - printk(KERN_ERR - "CPU: vendor_id '%s' unknown, using generic init.\n", v); - - printk(KERN_ERR "CPU: Your system may be unstable.\n"); - } + printk_once(KERN_ERR + "CPU: vendor_id '%s' unknown, using generic init.\n" \ + "CPU: Your system may be unstable.\n", v); c->x86_vendor = X86_VENDOR_UNKNOWN; this_cpu = &default_cpu; diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index daed39ba2614..3260ab044996 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -86,6 +86,29 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c) */ if (c->x86 == 6 && c->x86_model < 15) clear_cpu_cap(c, X86_FEATURE_PAT); + +#ifdef CONFIG_KMEMCHECK + /* + * P4s have a "fast strings" feature which causes single- + * stepping REP instructions to only generate a #DB on + * cache-line boundaries. + * + * Ingo Molnar reported a Pentium D (model 6) and a Xeon + * (model 2) with the same problem. + */ + if (c->x86 == 15) { + u64 misc_enable; + + rdmsrl(MSR_IA32_MISC_ENABLE, misc_enable); + + if (misc_enable & MSR_IA32_MISC_ENABLE_FAST_STRING) { + printk(KERN_INFO "kmemcheck: Disabling fast string operations\n"); + + misc_enable &= ~MSR_IA32_MISC_ENABLE_FAST_STRING; + wrmsrl(MSR_IA32_MISC_ENABLE, misc_enable); + } + } +#endif } #ifdef CONFIG_X86_32 diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c index 2ac1f0c2beb3..b07af8861244 100644 --- a/arch/x86/kernel/cpuid.c +++ b/arch/x86/kernel/cpuid.c @@ -182,6 +182,11 @@ static struct notifier_block __refdata cpuid_class_cpu_notifier = .notifier_call = cpuid_class_cpu_callback, }; +static char *cpuid_nodename(struct device *dev) +{ + return kasprintf(GFP_KERNEL, "cpu/%u/cpuid", MINOR(dev->devt)); +} + static int __init cpuid_init(void) { int i, err = 0; @@ -198,6 +203,7 @@ static int __init cpuid_init(void) err = PTR_ERR(cpuid_class); goto out_chrdev; } + cpuid_class->nodename = cpuid_nodename; for_each_online_cpu(i) { err = cpuid_device_create(i); if (err != 0) diff --git a/arch/x86/kernel/i8253.c b/arch/x86/kernel/i8253.c index c2e0bb0890d4..5cf36c053ac4 100644 --- a/arch/x86/kernel/i8253.c +++ b/arch/x86/kernel/i8253.c @@ -7,6 +7,7 @@ #include <linux/spinlock.h> #include <linux/jiffies.h> #include <linux/module.h> +#include <linux/timex.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/io.h> diff --git a/arch/x86/kernel/init_task.c b/arch/x86/kernel/init_task.c index df3bf269beab..270ff83efc11 100644 --- a/arch/x86/kernel/init_task.c +++ b/arch/x86/kernel/init_task.c @@ -12,7 +12,6 @@ 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); /* * Initial thread structure. diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c index 9c4461501fcb..9371448290ac 100644 --- a/arch/x86/kernel/microcode_core.c +++ b/arch/x86/kernel/microcode_core.c @@ -236,6 +236,7 @@ static const struct file_operations microcode_fops = { static struct miscdevice microcode_dev = { .minor = MICROCODE_MINOR, .name = "microcode", + .devnode = "cpu/microcode", .fops = µcode_fops, }; diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c index 3cf3413ec626..98fd6cd4e3a4 100644 --- a/arch/x86/kernel/msr.c +++ b/arch/x86/kernel/msr.c @@ -196,6 +196,11 @@ static struct notifier_block __refdata msr_class_cpu_notifier = { .notifier_call = msr_class_cpu_callback, }; +static char *msr_nodename(struct device *dev) +{ + return kasprintf(GFP_KERNEL, "cpu/%u/msr", MINOR(dev->devt)); +} + static int __init msr_init(void) { int i, err = 0; @@ -212,6 +217,7 @@ static int __init msr_init(void) err = PTR_ERR(msr_class); goto out_chrdev; } + msr_class->nodename = msr_nodename; for_each_online_cpu(i) { err = msr_device_create(i); if (err != 0) diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 3bb2be1649bd..994dd6a4a2a0 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -63,7 +63,7 @@ void arch_task_cache_init(void) task_xstate_cachep = kmem_cache_create("task_xstate", xstate_size, __alignof__(union thread_xstate), - SLAB_PANIC, NULL); + SLAB_PANIC | SLAB_NOTRACK, NULL); } /* diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c index 4aaf7e48394f..c3eb207181fe 100644 --- a/arch/x86/kernel/stacktrace.c +++ b/arch/x86/kernel/stacktrace.c @@ -77,6 +77,13 @@ void save_stack_trace(struct stack_trace *trace) } EXPORT_SYMBOL_GPL(save_stack_trace); +void save_stack_trace_bp(struct stack_trace *trace, unsigned long bp) +{ + dump_trace(current, NULL, NULL, bp, &save_stack_ops, trace); + if (trace->nr_entries < trace->max_entries) + trace->entries[trace->nr_entries++] = ULONG_MAX; +} + void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) { dump_trace(tsk, NULL, NULL, 0, &save_stack_ops_nosched, trace); diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 1e1e27b7d438..5f935f0d5861 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -45,6 +45,7 @@ #include <linux/edac.h> #endif +#include <asm/kmemcheck.h> #include <asm/stacktrace.h> #include <asm/processor.h> #include <asm/debugreg.h> @@ -534,6 +535,10 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code) get_debugreg(condition, 6); + /* Catch kmemcheck conditions first of all! */ + if (condition & DR_STEP && kmemcheck_trap(regs)) + return; + /* * The processor cleared BTF, so don't mark that we need it set. */ diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 3e1c057e98fe..ae3180c506a6 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -9,6 +9,7 @@ #include <linux/delay.h> #include <linux/clocksource.h> #include <linux/percpu.h> +#include <linux/timex.h> #include <asm/hpet.h> #include <asm/timer.h> diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 32d6ae8fb60e..e770bf349ec4 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1277,7 +1277,7 @@ static struct vmcs *alloc_vmcs_cpu(int cpu) struct page *pages; struct vmcs *vmcs; - pages = alloc_pages_node(node, GFP_KERNEL, vmcs_config.order); + pages = alloc_pages_exact_node(node, GFP_KERNEL, vmcs_config.order); if (!pages) return NULL; vmcs = page_address(pages); diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile index fdd30d08ab52..eefdeee8a871 100644 --- a/arch/x86/mm/Makefile +++ b/arch/x86/mm/Makefile @@ -10,6 +10,8 @@ obj-$(CONFIG_X86_PTDUMP) += dump_pagetables.o obj-$(CONFIG_HIGHMEM) += highmem_32.o +obj-$(CONFIG_KMEMCHECK) += kmemcheck/ + obj-$(CONFIG_MMIOTRACE) += mmiotrace.o mmiotrace-y := kmmio.o pf_in.o mmio-mod.o obj-$(CONFIG_MMIOTRACE_TEST) += testmmiotrace.o diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index c6acc6326374..baa0e86adfbc 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -14,6 +14,7 @@ #include <asm/traps.h> /* dotraplinkage, ... */ #include <asm/pgalloc.h> /* pgd_*(), ... */ +#include <asm/kmemcheck.h> /* kmemcheck_*(), ... */ /* * Page fault error code bits: @@ -956,6 +957,13 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code) /* Get the faulting address: */ address = read_cr2(); + /* + * Detect and handle instructions that would cause a page fault for + * both a tracked kernel page and a userspace page. + */ + if (kmemcheck_active(regs)) + kmemcheck_hide(regs); + if (unlikely(kmmio_fault(regs, address))) return; @@ -973,9 +981,13 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code) * protection error (error_code & 9) == 0. */ if (unlikely(fault_in_kernel_space(address))) { - if (!(error_code & (PF_RSVD|PF_USER|PF_PROT)) && - vmalloc_fault(address) >= 0) - return; + if (!(error_code & (PF_RSVD | PF_USER | PF_PROT))) { + if (vmalloc_fault(address) >= 0) + return; + + if (kmemcheck_fault(regs, address, error_code)) + return; + } /* Can handle a stale RO->RW TLB: */ if (spurious_fault(error_code, address)) diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 34c1bfb64f1c..f53b57e4086f 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -213,7 +213,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, if (!after_bootmem) init_gbpages(); -#ifdef CONFIG_DEBUG_PAGEALLOC +#if defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_KMEMCHECK) /* * For CONFIG_DEBUG_PAGEALLOC, identity mapping will use small pages. * This will simplify cpa(), which otherwise needs to support splitting diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 9ff3c0816d15..3cd7711bb949 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -111,7 +111,7 @@ static pte_t * __init one_page_table_init(pmd_t *pmd) pte_t *page_table = NULL; if (after_bootmem) { -#ifdef CONFIG_DEBUG_PAGEALLOC +#if defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_KMEMCHECK) page_table = (pte_t *) alloc_bootmem_pages(PAGE_SIZE); #endif if (!page_table) diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 52bb9519bb86..9c543290a813 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -104,7 +104,7 @@ static __ref void *spp_getpage(void) void *ptr; if (after_bootmem) - ptr = (void *) get_zeroed_page(GFP_ATOMIC); + ptr = (void *) get_zeroed_page(GFP_ATOMIC | __GFP_NOTRACK); else ptr = alloc_bootmem_pages(PAGE_SIZE); @@ -281,7 +281,7 @@ static __ref void *alloc_low_page(unsigned long *phys) void *adr; if (after_bootmem) { - adr = (void *)get_zeroed_page(GFP_ATOMIC); + adr = (void *)get_zeroed_page(GFP_ATOMIC | __GFP_NOTRACK); *phys = __pa(adr); return adr; diff --git a/arch/x86/mm/kmemcheck/Makefile b/arch/x86/mm/kmemcheck/Makefile new file mode 100644 index 000000000000..520b3bce4095 --- /dev/null +++ b/arch/x86/mm/kmemcheck/Makefile @@ -0,0 +1 @@ +obj-y := error.o kmemcheck.o opcode.o pte.o selftest.o shadow.o diff --git a/arch/x86/mm/kmemcheck/error.c b/arch/x86/mm/kmemcheck/error.c new file mode 100644 index 000000000000..4901d0dafda6 --- /dev/null +++ b/arch/x86/mm/kmemcheck/error.c @@ -0,0 +1,228 @@ +#include <linux/interrupt.h> +#include <linux/kdebug.h> +#include <linux/kmemcheck.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/ptrace.h> +#include <linux/stacktrace.h> +#include <linux/string.h> + +#include "error.h" +#include "shadow.h" + +enum kmemcheck_error_type { + KMEMCHECK_ERROR_INVALID_ACCESS, + KMEMCHECK_ERROR_BUG, +}; + +#define SHADOW_COPY_SIZE (1 << CONFIG_KMEMCHECK_SHADOW_COPY_SHIFT) + +struct kmemcheck_error { + enum kmemcheck_error_type type; + + union { + /* KMEMCHECK_ERROR_INVALID_ACCESS */ + struct { + /* Kind of access that caused the error */ + enum kmemcheck_shadow state; + /* Address and size of the erroneous read */ + unsigned long address; + unsigned int size; + }; + }; + + struct pt_regs regs; + struct stack_trace trace; + unsigned long trace_entries[32]; + + /* We compress it to a char. */ + unsigned char shadow_copy[SHADOW_COPY_SIZE]; + unsigned char memory_copy[SHADOW_COPY_SIZE]; +}; + +/* + * Create a ring queue of errors to output. We can't call printk() directly + * from the kmemcheck traps, since this may call the console drivers and + * result in a recursive fault. + */ +static struct kmemcheck_error error_fifo[CONFIG_KMEMCHECK_QUEUE_SIZE]; +static unsigned int error_count; +static unsigned int error_rd; +static unsigned int error_wr; +static unsigned int error_missed_count; + +static struct kmemcheck_error *error_next_wr(void) +{ + struct kmemcheck_error *e; + + if (error_count == ARRAY_SIZE(error_fifo)) { + ++error_missed_count; + return NULL; + } + + e = &error_fifo[error_wr]; + if (++error_wr == ARRAY_SIZE(error_fifo)) + error_wr = 0; + ++error_count; + return e; +} + +static struct kmemcheck_error *error_next_rd(void) +{ + struct kmemcheck_error *e; + + if (error_count == 0) + return NULL; + + e = &error_fifo[error_rd]; + if (++error_rd == ARRAY_SIZE(error_fifo)) + error_rd = 0; + --error_count; + return e; +} + +void kmemcheck_error_recall(void) +{ + static const char *desc[] = { + [KMEMCHECK_SHADOW_UNALLOCATED] = "unallocated", + [KMEMCHECK_SHADOW_UNINITIALIZED] = "uninitialized", + [KMEMCHECK_SHADOW_INITIALIZED] = "initialized", + [KMEMCHECK_SHADOW_FREED] = "freed", + }; + + static const char short_desc[] = { + [KMEMCHECK_SHADOW_UNALLOCATED] = 'a', + [KMEMCHECK_SHADOW_UNINITIALIZED] = 'u', + [KMEMCHECK_SHADOW_INITIALIZED] = 'i', + [KMEMCHECK_SHADOW_FREED] = 'f', + }; + + struct kmemcheck_error *e; + unsigned int i; + + e = error_next_rd(); + if (!e) + return; + + switch (e->type) { + case KMEMCHECK_ERROR_INVALID_ACCESS: + printk(KERN_ERR "WARNING: kmemcheck: Caught %d-bit read " + "from %s memory (%p)\n", + 8 * e->size, e->state < ARRAY_SIZE(desc) ? + desc[e->state] : "(invalid shadow state)", + (void *) e->address); + + printk(KERN_INFO); + for (i = 0; i < SHADOW_COPY_SIZE; ++i) + printk("%02x", e->memory_copy[i]); + printk("\n"); + + printk(KERN_INFO); + for (i = 0; i < SHADOW_COPY_SIZE; ++i) { + if (e->shadow_copy[i] < ARRAY_SIZE(short_desc)) + printk(" %c", short_desc[e->shadow_copy[i]]); + else + printk(" ?"); + } + printk("\n"); + printk(KERN_INFO "%*c\n", 2 + 2 + * (int) (e->address & (SHADOW_COPY_SIZE - 1)), '^'); + break; + case KMEMCHECK_ERROR_BUG: + printk(KERN_EMERG "ERROR: kmemcheck: Fatal error\n"); + break; + } + + __show_regs(&e->regs, 1); + print_stack_trace(&e->trace, 0); +} + +static void do_wakeup(unsigned long data) +{ + while (error_count > 0) + kmemcheck_error_recall(); + + if (error_missed_count > 0) { + printk(KERN_WARNING "kmemcheck: Lost %d error reports because " + "the queue was too small\n", error_missed_count); + error_missed_count = 0; + } +} + +static DECLARE_TASKLET(kmemcheck_tasklet, &do_wakeup, 0); + +/* + * Save the context of an error report. + */ +void kmemcheck_error_save(enum kmemcheck_shadow state, + unsigned long address, unsigned int size, struct pt_regs *regs) +{ + static unsigned long prev_ip; + + struct kmemcheck_error *e; + void *shadow_copy; + void *memory_copy; + + /* Don't report several adjacent errors from the same EIP. */ + if (regs->ip == prev_ip) + return; + prev_ip = regs->ip; + + e = error_next_wr(); + if (!e) + return; + + e->type = KMEMCHECK_ERROR_INVALID_ACCESS; + + e->state = state; + e->address = address; + e->size = size; + + /* Save regs */ + memcpy(&e->regs, regs, sizeof(*regs)); + + /* Save stack trace */ + e->trace.nr_entries = 0; + e->trace.entries = e->trace_entries; + e->trace.max_entries = ARRAY_SIZE(e->trace_entries); + e->trace.skip = 0; + save_stack_trace_bp(&e->trace, regs->bp); + + /* Round address down to nearest 16 bytes */ + shadow_copy = kmemcheck_shadow_lookup(address + & ~(SHADOW_COPY_SIZE - 1)); + BUG_ON(!shadow_copy); + + memcpy(e->shadow_copy, shadow_copy, SHADOW_COPY_SIZE); + + kmemcheck_show_addr(address); + memory_copy = (void *) (address & ~(SHADOW_COPY_SIZE - 1)); + memcpy(e->memory_copy, memory_copy, SHADOW_COPY_SIZE); + kmemcheck_hide_addr(address); + + tasklet_hi_schedule_first(&kmemcheck_tasklet); +} + +/* + * Save the context of a kmemcheck bug. + */ +void kmemcheck_error_save_bug(struct pt_regs *regs) +{ + struct kmemcheck_error *e; + + e = error_next_wr(); + if (!e) + return; + + e->type = KMEMCHECK_ERROR_BUG; + + memcpy(&e->regs, regs, sizeof(*regs)); + + e->trace.nr_entries = 0; + e->trace.entries = e->trace_entries; + e->trace.max_entries = ARRAY_SIZE(e->trace_entries); + e->trace.skip = 1; + save_stack_trace(&e->trace); + + tasklet_hi_schedule_first(&kmemcheck_tasklet); +} diff --git a/arch/x86/mm/kmemcheck/error.h b/arch/x86/mm/kmemcheck/error.h new file mode 100644 index 000000000000..0efc2e8d0a20 --- /dev/null +++ b/arch/x86/mm/kmemcheck/error.h @@ -0,0 +1,15 @@ +#ifndef ARCH__X86__MM__KMEMCHECK__ERROR_H +#define ARCH__X86__MM__KMEMCHECK__ERROR_H + +#include <linux/ptrace.h> + +#include "shadow.h" + +void kmemcheck_error_save(enum kmemcheck_shadow state, + unsigned long address, unsigned int size, struct pt_regs *regs); + +void kmemcheck_error_save_bug(struct pt_regs *regs); + +void kmemcheck_error_recall(void); + +#endif diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c new file mode 100644 index 000000000000..2c55ed098654 --- /dev/null +++ b/arch/x86/mm/kmemcheck/kmemcheck.c @@ -0,0 +1,640 @@ +/** + * kmemcheck - a heavyweight memory checker for the linux kernel + * Copyright (C) 2007, 2008 Vegard Nossum <vegardno@ifi.uio.no> + * (With a lot of help from Ingo Molnar and Pekka Enberg.) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License (version 2) as + * published by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/kallsyms.h> +#include <linux/kernel.h> +#include <linux/kmemcheck.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/page-flags.h> +#include <linux/percpu.h> +#include <linux/ptrace.h> +#include <linux/string.h> +#include <linux/types.h> + +#include <asm/cacheflush.h> +#include <asm/kmemcheck.h> +#include <asm/pgtable.h> +#include <asm/tlbflush.h> + +#include "error.h" +#include "opcode.h" +#include "pte.h" +#include "selftest.h" +#include "shadow.h" + + +#ifdef CONFIG_KMEMCHECK_DISABLED_BY_DEFAULT +# define KMEMCHECK_ENABLED 0 +#endif + +#ifdef CONFIG_KMEMCHECK_ENABLED_BY_DEFAULT +# define KMEMCHECK_ENABLED 1 +#endif + +#ifdef CONFIG_KMEMCHECK_ONESHOT_BY_DEFAULT +# define KMEMCHECK_ENABLED 2 +#endif + +int kmemcheck_enabled = KMEMCHECK_ENABLED; + +int __init kmemcheck_init(void) +{ +#ifdef CONFIG_SMP + /* + * Limit SMP to use a single CPU. We rely on the fact that this code + * runs before SMP is set up. + */ + if (setup_max_cpus > 1) { + printk(KERN_INFO + "kmemcheck: Limiting number of CPUs to 1.\n"); + setup_max_cpus = 1; + } +#endif + + if (!kmemcheck_selftest()) { + printk(KERN_INFO "kmemcheck: self-tests failed; disabling\n"); + kmemcheck_enabled = 0; + return -EINVAL; + } + + printk(KERN_INFO "kmemcheck: Initialized\n"); + return 0; +} + +early_initcall(kmemcheck_init); + +/* + * We need to parse the kmemcheck= option before any memory is allocated. + */ +static int __init param_kmemcheck(char *str) +{ + if (!str) + return -EINVAL; + + sscanf(str, "%d", &kmemcheck_enabled); + return 0; +} + +early_param("kmemcheck", param_kmemcheck); + +int kmemcheck_show_addr(unsigned long address) +{ + pte_t *pte; + + pte = kmemcheck_pte_lookup(address); + if (!pte) + return 0; + + set_pte(pte, __pte(pte_val(*pte) | _PAGE_PRESENT)); + __flush_tlb_one(address); + return 1; +} + +int kmemcheck_hide_addr(unsigned long address) +{ + pte_t *pte; + + pte = kmemcheck_pte_lookup(address); + if (!pte) + return 0; + + set_pte(pte, __pte(pte_val(*pte) & ~_PAGE_PRESENT)); + __flush_tlb_one(address); + return 1; +} + +struct kmemcheck_context { + bool busy; + int balance; + + /* + * There can be at most two memory operands to an instruction, but + * each address can cross a page boundary -- so we may need up to + * four addresses that must be hidden/revealed for each fault. + */ + unsigned long addr[4]; + unsigned long n_addrs; + unsigned long flags; + + /* Data size of the instruction that caused a fault. */ + unsigned int size; +}; + +static DEFINE_PER_CPU(struct kmemcheck_context, kmemcheck_context); + +bool kmemcheck_active(struct pt_regs *regs) +{ + struct kmemcheck_context *data = &__get_cpu_var(kmemcheck_context); + + return data->balance > 0; +} + +/* Save an address that needs to be shown/hidden */ +static void kmemcheck_save_addr(unsigned long addr) +{ + struct kmemcheck_context *data = &__get_cpu_var(kmemcheck_context); + + BUG_ON(data->n_addrs >= ARRAY_SIZE(data->addr)); + data->addr[data->n_addrs++] = addr; +} + +static unsigned int kmemcheck_show_all(void) +{ + struct kmemcheck_context *data = &__get_cpu_var(kmemcheck_context); + unsigned int i; + unsigned int n; + + n = 0; + for (i = 0; i < data->n_addrs; ++i) + n += kmemcheck_show_addr(data->addr[i]); + + return n; +} + +static unsigned int kmemcheck_hide_all(void) +{ + struct kmemcheck_context *data = &__get_cpu_var(kmemcheck_context); + unsigned int i; + unsigned int n; + + n = 0; + for (i = 0; i < data->n_addrs; ++i) + n += kmemcheck_hide_addr(data->addr[i]); + + return n; +} + +/* + * Called from the #PF handler. + */ +void kmemcheck_show(struct pt_regs *regs) +{ + struct kmemcheck_context *data = &__get_cpu_var(kmemcheck_context); + + BUG_ON(!irqs_disabled()); + + if (unlikely(data->balance != 0)) { + kmemcheck_show_all(); + kmemcheck_error_save_bug(regs); + data->balance = 0; + return; + } + + /* + * None of the addresses actually belonged to kmemcheck. Note that + * this is not an error. + */ + if (kmemcheck_show_all() == 0) + return; + + ++data->balance; + + /* + * The IF needs to be cleared as well, so that the faulting + * instruction can run "uninterrupted". Otherwise, we might take + * an interrupt and start executing that before we've had a chance + * to hide the page again. + * + * NOTE: In the rare case of multiple faults, we must not override + * the original flags: + */ + if (!(regs->flags & X86_EFLAGS_TF)) + data->flags = regs->flags; + + regs->flags |= X86_EFLAGS_TF; + regs->flags &= ~X86_EFLAGS_IF; +} + +/* + * Called from the #DB handler. + */ +void kmemcheck_hide(struct pt_regs *regs) +{ + struct kmemcheck_context *data = &__get_cpu_var(kmemcheck_context); + int n; + + BUG_ON(!irqs_disabled()); + + if (data->balance == 0) + return; + + if (unlikely(data->balance != 1)) { + kmemcheck_show_all(); + kmemcheck_error_save_bug(regs); + data->n_addrs = 0; + data->balance = 0; + + if (!(data->flags & X86_EFLAGS_TF)) + regs->flags &= ~X86_EFLAGS_TF; + if (data->flags & X86_EFLAGS_IF) + regs->flags |= X86_EFLAGS_IF; + return; + } + + if (kmemcheck_enabled) + n = kmemcheck_hide_all(); + else + n = kmemcheck_show_all(); + + if (n == 0) + return; + + --data->balance; + + data->n_addrs = 0; + + if (!(data->flags & X86_EFLAGS_TF)) + regs->flags &= ~X86_EFLAGS_TF; + if (data->flags & X86_EFLAGS_IF) + regs->flags |= X86_EFLAGS_IF; +} + +void kmemcheck_show_pages(struct page *p, unsigned int n) +{ + unsigned int i; + + for (i = 0; i < n; ++i) { + unsigned long address; + pte_t *pte; + unsigned int level; + + address = (unsigned long) page_address(&p[i]); + pte = lookup_address(address, &level); + BUG_ON(!pte); + BUG_ON(level != PG_LEVEL_4K); + + set_pte(pte, __pte(pte_val(*pte) | _PAGE_PRESENT)); + set_pte(pte, __pte(pte_val(*pte) & ~_PAGE_HIDDEN)); + __flush_tlb_one(address); + } +} + +bool kmemcheck_page_is_tracked(struct page *p) +{ + /* This will also check the "hidden" flag of the PTE. */ + return kmemcheck_pte_lookup((unsigned long) page_address(p)); +} + +void kmemcheck_hide_pages(struct page *p, unsigned int n) +{ + unsigned int i; + + for (i = 0; i < n; ++i) { + unsigned long address; + pte_t *pte; + unsigned int level; + + address = (unsigned long) page_address(&p[i]); + pte = lookup_address(address, &level); + BUG_ON(!pte); + BUG_ON(level != PG_LEVEL_4K); + + set_pte(pte, __pte(pte_val(*pte) & ~_PAGE_PRESENT)); + set_pte(pte, __pte(pte_val(*pte) | _PAGE_HIDDEN)); + __flush_tlb_one(address); + } +} + +/* Access may NOT cross page boundary */ +static void kmemcheck_read_strict(struct pt_regs *regs, + unsigned long addr, unsigned int size) +{ + void *shadow; + enum kmemcheck_shadow status; + + shadow = kmemcheck_shadow_lookup(addr); + if (!shadow) + return; + + kmemcheck_save_addr(addr); + status = kmemcheck_shadow_test(shadow, size); + if (status == KMEMCHECK_SHADOW_INITIALIZED) + return; + + if (kmemcheck_enabled) + kmemcheck_error_save(status, addr, size, regs); + + if (kmemcheck_enabled == 2) + kmemcheck_enabled = 0; + + /* Don't warn about it again. */ + kmemcheck_shadow_set(shadow, size); +} + +/* Access may cross page boundary */ +static void kmemcheck_read(struct pt_regs *regs, + unsigned long addr, unsigned int size) +{ + unsigned long page = addr & PAGE_MASK; + unsigned long next_addr = addr + size - 1; + unsigned long next_page = next_addr & PAGE_MASK; + + if (likely(page == next_page)) { + kmemcheck_read_strict(regs, addr, size); + return; + } + + /* + * What we do is basically to split the access across the + * two pages and handle each part separately. Yes, this means + * that we may now see reads that are 3 + 5 bytes, for + * example (and if both are uninitialized, there will be two + * reports), but it makes the code a lot simpler. + */ + kmemcheck_read_strict(regs, addr, next_page - addr); + kmemcheck_read_strict(regs, next_page, next_addr - next_page); +} + +static void kmemcheck_write_strict(struct pt_regs *regs, + unsigned long addr, unsigned int size) +{ + void *shadow; + + shadow = kmemcheck_shadow_lookup(addr); + if (!shadow) + return; + + kmemcheck_save_addr(addr); + kmemcheck_shadow_set(shadow, size); +} + +static void kmemcheck_write(struct pt_regs *regs, + unsigned long addr, unsigned int size) +{ + unsigned long page = addr & PAGE_MASK; + unsigned long next_addr = addr + size - 1; + unsigned long next_page = next_addr & PAGE_MASK; + + if (likely(page == next_page)) { + kmemcheck_write_strict(regs, addr, size); + return; + } + + /* See comment in kmemcheck_read(). */ + kmemcheck_write_strict(regs, addr, next_page - addr); + kmemcheck_write_strict(regs, next_page, next_addr - next_page); +} + +/* + * Copying is hard. We have two addresses, each of which may be split across + * a page (and each page will have different shadow addresses). + */ +static void kmemcheck_copy(struct pt_regs *regs, + unsigned long src_addr, unsigned long dst_addr, unsigned int size) +{ + uint8_t shadow[8]; + enum kmemcheck_shadow status; + + unsigned long page; + unsigned long next_addr; + unsigned long next_page; + + uint8_t *x; + unsigned int i; + unsigned int n; + + BUG_ON(size > sizeof(shadow)); + + page = src_addr & PAGE_MASK; + next_addr = src_addr + size - 1; + next_page = next_addr & PAGE_MASK; + + if (likely(page == next_page)) { + /* Same page */ + x = kmemcheck_shadow_lookup(src_addr); + if (x) { + kmemcheck_save_addr(src_addr); + for (i = 0; i < size; ++i) + shadow[i] = x[i]; + } else { + for (i = 0; i < size; ++i) + shadow[i] = KMEMCHECK_SHADOW_INITIALIZED; + } + } else { + n = next_page - src_addr; + BUG_ON(n > sizeof(shadow)); + + /* First page */ + x = kmemcheck_shadow_lookup(src_addr); + if (x) { + kmemcheck_save_addr(src_addr); + for (i = 0; i < n; ++i) + shadow[i] = x[i]; + } else { + /* Not tracked */ + for (i = 0; i < n; ++i) + shadow[i] = KMEMCHECK_SHADOW_INITIALIZED; + } + + /* Second page */ + x = kmemcheck_shadow_lookup(next_page); + if (x) { + kmemcheck_save_addr(next_page); + for (i = n; i < size; ++i) + shadow[i] = x[i - n]; + } else { + /* Not tracked */ + for (i = n; i < size; ++i) + shadow[i] = KMEMCHECK_SHADOW_INITIALIZED; + } + } + + page = dst_addr & PAGE_MASK; + next_addr = dst_addr + size - 1; + next_page = next_addr & PAGE_MASK; + + if (likely(page == next_page)) { + /* Same page */ + x = kmemcheck_shadow_lookup(dst_addr); + if (x) { + kmemcheck_save_addr(dst_addr); + for (i = 0; i < size; ++i) { + x[i] = shadow[i]; + shadow[i] = KMEMCHECK_SHADOW_INITIALIZED; + } + } + } else { + n = next_page - dst_addr; + BUG_ON(n > sizeof(shadow)); + + /* First page */ + x = kmemcheck_shadow_lookup(dst_addr); + if (x) { + kmemcheck_save_addr(dst_addr); + for (i = 0; i < n; ++i) { + x[i] = shadow[i]; + shadow[i] = KMEMCHECK_SHADOW_INITIALIZED; + } + } + + /* Second page */ + x = kmemcheck_shadow_lookup(next_page); + if (x) { + kmemcheck_save_addr(next_page); + for (i = n; i < size; ++i) { + x[i - n] = shadow[i]; + shadow[i] = KMEMCHECK_SHADOW_INITIALIZED; + } + } + } + + status = kmemcheck_shadow_test(shadow, size); + if (status == KMEMCHECK_SHADOW_INITIALIZED) + return; + + if (kmemcheck_enabled) + kmemcheck_error_save(status, src_addr, size, regs); + + if (kmemcheck_enabled == 2) + kmemcheck_enabled = 0; +} + +enum kmemcheck_method { + KMEMCHECK_READ, + KMEMCHECK_WRITE, +}; + +static void kmemcheck_access(struct pt_regs *regs, + unsigned long fallback_address, enum kmemcheck_method fallback_method) +{ + const uint8_t *insn; + const uint8_t *insn_primary; + unsigned int size; + + struct kmemcheck_context *data = &__get_cpu_var(kmemcheck_context); + + /* Recursive fault -- ouch. */ + if (data->busy) { + kmemcheck_show_addr(fallback_address); + kmemcheck_error_save_bug(regs); + return; + } + + data->busy = true; + + insn = (const uint8_t *) regs->ip; + insn_primary = kmemcheck_opcode_get_primary(insn); + + kmemcheck_opcode_decode(insn, &size); + + switch (insn_primary[0]) { +#ifdef CONFIG_KMEMCHECK_BITOPS_OK + /* AND, OR, XOR */ + /* + * Unfortunately, these instructions have to be excluded from + * our regular checking since they access only some (and not + * all) bits. This clears out "bogus" bitfield-access warnings. + */ + case 0x80: + case 0x81: + case 0x82: + case 0x83: + switch ((insn_primary[1] >> 3) & 7) { + /* OR */ + case 1: + /* AND */ + case 4: + /* XOR */ + case 6: + kmemcheck_write(regs, fallback_address, size); + goto out; + + /* ADD */ + case 0: + /* ADC */ + case 2: + /* SBB */ + case 3: + /* SUB */ + case 5: + /* CMP */ + case 7: + break; + } + break; +#endif + + /* MOVS, MOVSB, MOVSW, MOVSD */ + case 0xa4: + case 0xa5: + /* + * These instructions are special because they take two + * addresses, but we only get one page fault. + */ + kmemcheck_copy(regs, regs->si, regs->di, size); + goto out; + + /* CMPS, CMPSB, CMPSW, CMPSD */ + case 0xa6: + case 0xa7: + kmemcheck_read(regs, regs->si, size); + kmemcheck_read(regs, regs->di, size); + goto out; + } + + /* + * If the opcode isn't special in any way, we use the data from the + * page fault handler to determine the address and type of memory + * access. + */ + switch (fallback_method) { + case KMEMCHECK_READ: + kmemcheck_read(regs, fallback_address, size); + goto out; + case KMEMCHECK_WRITE: + kmemcheck_write(regs, fallback_address, size); + goto out; + } + +out: + data->busy = false; +} + +bool kmemcheck_fault(struct pt_regs *regs, unsigned long address, + unsigned long error_code) +{ + pte_t *pte; + + /* + * XXX: Is it safe to assume that memory accesses from virtual 86 + * mode or non-kernel code segments will _never_ access kernel + * memory (e.g. tracked pages)? For now, we need this to avoid + * invoking kmemcheck for PnP BIOS calls. + */ + if (regs->flags & X86_VM_MASK) + return false; + if (regs->cs != __KERNEL_CS) + return false; + + pte = kmemcheck_pte_lookup(address); + if (!pte) + return false; + + if (error_code & 2) + kmemcheck_access(regs, address, KMEMCHECK_WRITE); + else + kmemcheck_access(regs, address, KMEMCHECK_READ); + + kmemcheck_show(regs); + return true; +} + +bool kmemcheck_trap(struct pt_regs *regs) +{ + if (!kmemcheck_active(regs)) + return false; + + /* We're done. */ + kmemcheck_hide(regs); + return true; +} diff --git a/arch/x86/mm/kmemcheck/opcode.c b/arch/x86/mm/kmemcheck/opcode.c new file mode 100644 index 000000000000..63c19e27aa6f --- /dev/null +++ b/arch/x86/mm/kmemcheck/opcode.c @@ -0,0 +1,106 @@ +#include <linux/types.h> + +#include "opcode.h" + +static bool opcode_is_prefix(uint8_t b) +{ + return + /* Group 1 */ + b == 0xf0 || b == 0xf2 || b == 0xf3 + /* Group 2 */ + || b == 0x2e || b == 0x36 || b == 0x3e || b == 0x26 + || b == 0x64 || b == 0x65 || b == 0x2e || b == 0x3e + /* Group 3 */ + || b == 0x66 + /* Group 4 */ + || b == 0x67; +} + +#ifdef CONFIG_X86_64 +static bool opcode_is_rex_prefix(uint8_t b) +{ + return (b & 0xf0) == 0x40; +} +#else +static bool opcode_is_rex_prefix(uint8_t b) +{ + return false; +} +#endif + +#define REX_W (1 << 3) + +/* + * This is a VERY crude opcode decoder. We only need to find the size of the + * load/store that caused our #PF and this should work for all the opcodes + * that we care about. Moreover, the ones who invented this instruction set + * should be shot. + */ +void kmemcheck_opcode_decode(const uint8_t *op, unsigned int *size) +{ + /* Default operand size */ + int operand_size_override = 4; + + /* prefixes */ + for (; opcode_is_prefix(*op); ++op) { + if (*op == 0x66) + operand_size_override = 2; + } + + /* REX prefix */ + if (opcode_is_rex_prefix(*op)) { + uint8_t rex = *op; + + ++op; + if (rex & REX_W) { + switch (*op) { + case 0x63: + *size = 4; + return; + case 0x0f: + ++op; + + switch (*op) { + case 0xb6: + case 0xbe: + *size = 1; + return; + case 0xb7: + case 0xbf: + *size = 2; + return; + } + + break; + } + + *size = 8; + return; + } + } + + /* escape opcode */ + if (*op == 0x0f) { + ++op; + + /* + * This is move with zero-extend and sign-extend, respectively; + * we don't have to think about 0xb6/0xbe, because this is + * already handled in the conditional below. + */ + if (*op == 0xb7 || *op == 0xbf) + operand_size_override = 2; + } + + *size = (*op & 1) ? operand_size_override : 1; +} + +const uint8_t *kmemcheck_opcode_get_primary(const uint8_t *op) +{ + /* skip prefixes */ + while (opcode_is_prefix(*op)) + ++op; + if (opcode_is_rex_prefix(*op)) + ++op; + return op; +} diff --git a/arch/x86/mm/kmemcheck/opcode.h b/arch/x86/mm/kmemcheck/opcode.h new file mode 100644 index 000000000000..6956aad66b5b --- /dev/null +++ b/arch/x86/mm/kmemcheck/opcode.h @@ -0,0 +1,9 @@ +#ifndef ARCH__X86__MM__KMEMCHECK__OPCODE_H +#define ARCH__X86__MM__KMEMCHECK__OPCODE_H + +#include <linux/types.h> + +void kmemcheck_opcode_decode(const uint8_t *op, unsigned int *size); +const uint8_t *kmemcheck_opcode_get_primary(const uint8_t *op); + +#endif diff --git a/arch/x86/mm/kmemcheck/pte.c b/arch/x86/mm/kmemcheck/pte.c new file mode 100644 index 000000000000..4ead26eeaf96 --- /dev/null +++ b/arch/x86/mm/kmemcheck/pte.c @@ -0,0 +1,22 @@ +#include <linux/mm.h> + +#include <asm/pgtable.h> + +#include "pte.h" + +pte_t *kmemcheck_pte_lookup(unsigned long address) +{ + pte_t *pte; + unsigned int level; + + pte = lookup_address(address, &level); + if (!pte) + return NULL; + if (level != PG_LEVEL_4K) + return NULL; + if (!pte_hidden(*pte)) + return NULL; + + return pte; +} + diff --git a/arch/x86/mm/kmemcheck/pte.h b/arch/x86/mm/kmemcheck/pte.h new file mode 100644 index 000000000000..9f5966456492 --- /dev/null +++ b/arch/x86/mm/kmemcheck/pte.h @@ -0,0 +1,10 @@ +#ifndef ARCH__X86__MM__KMEMCHECK__PTE_H +#define ARCH__X86__MM__KMEMCHECK__PTE_H + +#include <linux/mm.h> + +#include <asm/pgtable.h> + +pte_t *kmemcheck_pte_lookup(unsigned long address); + +#endif diff --git a/arch/x86/mm/kmemcheck/selftest.c b/arch/x86/mm/kmemcheck/selftest.c new file mode 100644 index 000000000000..036efbea8b28 --- /dev/null +++ b/arch/x86/mm/kmemcheck/selftest.c @@ -0,0 +1,69 @@ +#include <linux/kernel.h> + +#include "opcode.h" +#include "selftest.h" + +struct selftest_opcode { + unsigned int expected_size; + const uint8_t *insn; + const char *desc; +}; + +static const struct selftest_opcode selftest_opcodes[] = { + /* REP MOVS */ + {1, "\xf3\xa4", "rep movsb <mem8>, <mem8>"}, + {4, "\xf3\xa5", "rep movsl <mem32>, <mem32>"}, + + /* MOVZX / MOVZXD */ + {1, "\x66\x0f\xb6\x51\xf8", "movzwq <mem8>, <reg16>"}, + {1, "\x0f\xb6\x51\xf8", "movzwq <mem8>, <reg32>"}, + + /* MOVSX / MOVSXD */ + {1, "\x66\x0f\xbe\x51\xf8", "movswq <mem8>, <reg16>"}, + {1, "\x0f\xbe\x51\xf8", "movswq <mem8>, <reg32>"}, + +#ifdef CONFIG_X86_64 + /* MOVZX / MOVZXD */ + {1, "\x49\x0f\xb6\x51\xf8", "movzbq <mem8>, <reg64>"}, + {2, "\x49\x0f\xb7\x51\xf8", "movzbq <mem16>, <reg64>"}, + + /* MOVSX / MOVSXD */ + {1, "\x49\x0f\xbe\x51\xf8", "movsbq <mem8>, <reg64>"}, + {2, "\x49\x0f\xbf\x51\xf8", "movsbq <mem16>, <reg64>"}, + {4, "\x49\x63\x51\xf8", "movslq <mem32>, <reg64>"}, +#endif +}; + +static bool selftest_opcode_one(const struct selftest_opcode *op) +{ + unsigned size; + + kmemcheck_opcode_decode(op->insn, &size); + + if (size == op->expected_size) + return true; + + printk(KERN_WARNING "kmemcheck: opcode %s: expected size %d, got %d\n", + op->desc, op->expected_size, size); + return false; +} + +static bool selftest_opcodes_all(void) +{ + bool pass = true; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(selftest_opcodes); ++i) + pass = pass && selftest_opcode_one(&selftest_opcodes[i]); + + return pass; +} + +bool kmemcheck_selftest(void) +{ + bool pass = true; + + pass = pass && selftest_opcodes_all(); + + return pass; +} diff --git a/arch/x86/mm/kmemcheck/selftest.h b/arch/x86/mm/kmemcheck/selftest.h new file mode 100644 index 000000000000..8fed4fe11f95 --- /dev/null +++ b/arch/x86/mm/kmemcheck/selftest.h @@ -0,0 +1,6 @@ +#ifndef ARCH_X86_MM_KMEMCHECK_SELFTEST_H +#define ARCH_X86_MM_KMEMCHECK_SELFTEST_H + +bool kmemcheck_selftest(void); + +#endif diff --git a/arch/x86/mm/kmemcheck/shadow.c b/arch/x86/mm/kmemcheck/shadow.c new file mode 100644 index 000000000000..e773b6bd0079 --- /dev/null +++ b/arch/x86/mm/kmemcheck/shadow.c @@ -0,0 +1,162 @@ +#include <linux/kmemcheck.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/module.h> + +#include <asm/page.h> +#include <asm/pgtable.h> + +#include "pte.h" +#include "shadow.h" + +/* + * Return the shadow address for the given address. Returns NULL if the + * address is not tracked. + * + * We need to be extremely careful not to follow any invalid pointers, + * because this function can be called for *any* possible address. + */ +void *kmemcheck_shadow_lookup(unsigned long address) +{ + pte_t *pte; + struct page *page; + + if (!virt_addr_valid(address)) + return NULL; + + pte = kmemcheck_pte_lookup(address); + if (!pte) + return NULL; + + page = virt_to_page(address); + if (!page->shadow) + return NULL; + return page->shadow + (address & (PAGE_SIZE - 1)); +} + +static void mark_shadow(void *address, unsigned int n, + enum kmemcheck_shadow status) +{ + unsigned long addr = (unsigned long) address; + unsigned long last_addr = addr + n - 1; + unsigned long page = addr & PAGE_MASK; + unsigned long last_page = last_addr & PAGE_MASK; + unsigned int first_n; + void *shadow; + + /* If the memory range crosses a page boundary, stop there. */ + if (page == last_page) + first_n = n; + else + first_n = page + PAGE_SIZE - addr; + + shadow = kmemcheck_shadow_lookup(addr); + if (shadow) + memset(shadow, status, first_n); + + addr += first_n; + n -= first_n; + + /* Do full-page memset()s. */ + while (n >= PAGE_SIZE) { + shadow = kmemcheck_shadow_lookup(addr); + if (shadow) + memset(shadow, status, PAGE_SIZE); + + addr += PAGE_SIZE; + n -= PAGE_SIZE; + } + + /* Do the remaining page, if any. */ + if (n > 0) { + shadow = kmemcheck_shadow_lookup(addr); + if (shadow) + memset(shadow, status, n); + } +} + +void kmemcheck_mark_unallocated(void *address, unsigned int n) +{ + mark_shadow(address, n, KMEMCHECK_SHADOW_UNALLOCATED); +} + +void kmemcheck_mark_uninitialized(void *address, unsigned int n) +{ + mark_shadow(address, n, KMEMCHECK_SHADOW_UNINITIALIZED); +} + +/* + * Fill the shadow memory of the given address such that the memory at that + * address is marked as being initialized. + */ +void kmemcheck_mark_initialized(void *address, unsigned int n) +{ + mark_shadow(address, n, KMEMCHECK_SHADOW_INITIALIZED); +} +EXPORT_SYMBOL_GPL(kmemcheck_mark_initialized); + +void kmemcheck_mark_freed(void *address, unsigned int n) +{ + mark_shadow(address, n, KMEMCHECK_SHADOW_FREED); +} + +void kmemcheck_mark_unallocated_pages(struct page *p, unsigned int n) +{ + unsigned int i; + + for (i = 0; i < n; ++i) + kmemcheck_mark_unallocated(page_address(&p[i]), PAGE_SIZE); +} + +void kmemcheck_mark_uninitialized_pages(struct page *p, unsigned int n) +{ + unsigned int i; + + for (i = 0; i < n; ++i) + kmemcheck_mark_uninitialized(page_address(&p[i]), PAGE_SIZE); +} + +void kmemcheck_mark_initialized_pages(struct page *p, unsigned int n) +{ + unsigned int i; + + for (i = 0; i < n; ++i) + kmemcheck_mark_initialized(page_address(&p[i]), PAGE_SIZE); +} + +enum kmemcheck_shadow kmemcheck_shadow_test(void *shadow, unsigned int size) +{ + uint8_t *x; + unsigned int i; + + x = shadow; + +#ifdef CONFIG_KMEMCHECK_PARTIAL_OK + /* + * Make sure _some_ bytes are initialized. Gcc frequently generates + * code to access neighboring bytes. + */ + for (i = 0; i < size; ++i) { + if (x[i] == KMEMCHECK_SHADOW_INITIALIZED) + return x[i]; + } +#else + /* All bytes must be initialized. */ + for (i = 0; i < size; ++i) { + if (x[i] != KMEMCHECK_SHADOW_INITIALIZED) + return x[i]; + } +#endif + + return x[0]; +} + +void kmemcheck_shadow_set(void *shadow, unsigned int size) +{ + uint8_t *x; + unsigned int i; + + x = shadow; + for (i = 0; i < size; ++i) + x[i] = KMEMCHECK_SHADOW_INITIALIZED; +} diff --git a/arch/x86/mm/kmemcheck/shadow.h b/arch/x86/mm/kmemcheck/shadow.h new file mode 100644 index 000000000000..af46d9ab9d86 --- /dev/null +++ b/arch/x86/mm/kmemcheck/shadow.h @@ -0,0 +1,16 @@ +#ifndef ARCH__X86__MM__KMEMCHECK__SHADOW_H +#define ARCH__X86__MM__KMEMCHECK__SHADOW_H + +enum kmemcheck_shadow { + KMEMCHECK_SHADOW_UNALLOCATED, + KMEMCHECK_SHADOW_UNINITIALIZED, + KMEMCHECK_SHADOW_INITIALIZED, + KMEMCHECK_SHADOW_FREED, +}; + +void *kmemcheck_shadow_lookup(unsigned long address); + +enum kmemcheck_shadow kmemcheck_shadow_test(void *shadow, unsigned int size); +void kmemcheck_shadow_set(void *shadow, unsigned int size); + +#endif diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 6ce9518fe2ac..3cfe9ced8a4c 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -470,7 +470,7 @@ static int split_large_page(pte_t *kpte, unsigned long address) if (!debug_pagealloc) spin_unlock(&cpa_lock); - base = alloc_pages(GFP_KERNEL, 0); + base = alloc_pages(GFP_KERNEL | __GFP_NOTRACK, 0); if (!debug_pagealloc) spin_lock(&cpa_lock); if (!base) diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index 7aa03a5389f5..8e43bdd45456 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -4,9 +4,11 @@ #include <asm/tlb.h> #include <asm/fixmap.h> +#define PGALLOC_GFP GFP_KERNEL | __GFP_NOTRACK | __GFP_REPEAT | __GFP_ZERO + pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) { - return (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); + return (pte_t *)__get_free_page(PGALLOC_GFP); } pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address) @@ -14,9 +16,9 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address) struct page *pte; #ifdef CONFIG_HIGHPTE - pte = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM|__GFP_REPEAT|__GFP_ZERO, 0); + pte = alloc_pages(PGALLOC_GFP | __GFP_HIGHMEM, 0); #else - pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); + pte = alloc_pages(PGALLOC_GFP, 0); #endif if (pte) pgtable_page_ctor(pte); @@ -161,7 +163,7 @@ static int preallocate_pmds(pmd_t *pmds[]) bool failed = false; for(i = 0; i < PREALLOCATED_PMDS; i++) { - pmd_t *pmd = (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT); + pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP); if (pmd == NULL) failed = true; pmds[i] = pmd; @@ -228,7 +230,7 @@ pgd_t *pgd_alloc(struct mm_struct *mm) pmd_t *pmds[PREALLOCATED_PMDS]; unsigned long flags; - pgd = (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO); + pgd = (pgd_t *)__get_free_page(PGALLOC_GFP); if (pgd == NULL) goto out; diff --git a/arch/xtensa/include/asm/kmap_types.h b/arch/xtensa/include/asm/kmap_types.h index 9e822d2e3bce..11c687e527f1 100644 --- a/arch/xtensa/include/asm/kmap_types.h +++ b/arch/xtensa/include/asm/kmap_types.h @@ -1,31 +1,6 @@ -/* - * include/asm-xtensa/kmap_types.h - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2001 - 2005 Tensilica Inc. - */ - #ifndef _XTENSA_KMAP_TYPES_H #define _XTENSA_KMAP_TYPES_H -enum km_type { - KM_BOUNCE_READ, - KM_SKB_SUNRPC_DATA, - KM_SKB_DATA_SOFTIRQ, - KM_USER0, - KM_USER1, - KM_BIO_SRC_IRQ, - KM_BIO_DST_IRQ, - KM_PTE0, - KM_PTE1, - KM_IRQ0, - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, - KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> #endif /* _XTENSA_KMAP_TYPES_H */ diff --git a/arch/xtensa/kernel/init_task.c b/arch/xtensa/kernel/init_task.c index e07f5c9fcd35..c4302f0e4ba0 100644 --- a/arch/xtensa/kernel/init_task.c +++ b/arch/xtensa/kernel/init_task.c @@ -23,10 +23,6 @@ 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); - union thread_union init_thread_union __attribute__((__section__(".data.init_task"))) = { INIT_THREAD_INFO(init_task) }; |