diff options
Diffstat (limited to 'arch/x86')
33 files changed, 243 insertions, 350 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index d57ddd7..cc6c53a 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -71,6 +71,7 @@ config X86 select GENERIC_IRQ_SHOW select IRQ_FORCED_THREADING select USE_GENERIC_SMP_HELPERS if SMP + select ARCH_NO_SYSDEV_OPS config INSTRUCTION_DECODER def_bool (KPROBES || PERF_EVENTS) @@ -2096,6 +2097,16 @@ source "drivers/pcmcia/Kconfig" source "drivers/pci/hotplug/Kconfig" +config RAPIDIO + bool "RapidIO support" + depends on PCI + default n + help + If you say Y here, the kernel will include drivers and + infrastructure code to support RapidIO interconnect devices. + +source "drivers/rapidio/Kconfig" + endmenu diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c index 2d93bdb..fd84387 100644 --- a/arch/x86/ia32/ia32_aout.c +++ b/arch/x86/ia32/ia32_aout.c @@ -298,6 +298,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs) /* OK, This is the point of no return */ set_personality(PER_LINUX); set_thread_flag(TIF_IA32); + current->mm->context.ia32_compat = 1; setup_new_exec(bprm); diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index 448d73a..12e0e7d 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -114,9 +114,8 @@ static inline void acpi_disable_pci(void) acpi_noirq_set(); } -/* routines for saving/restoring kernel state */ -extern int acpi_save_state_mem(void); -extern void acpi_restore_state_mem(void); +/* Low-level suspend routine. */ +extern int acpi_suspend_lowlevel(void); extern const unsigned char acpi_wakeup_code[]; #define acpi_wakeup_address (__pa(TRAMPOLINE_SYM(acpi_wakeup_code))) diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h index 903683b..69d5813 100644 --- a/arch/x86/include/asm/bitops.h +++ b/arch/x86/include/asm/bitops.h @@ -456,14 +456,12 @@ static inline int fls(int x) #ifdef __KERNEL__ -#include <asm-generic/bitops/ext2-non-atomic.h> +#include <asm-generic/bitops/le.h> #define ext2_set_bit_atomic(lock, nr, addr) \ test_and_set_bit((nr), (unsigned long *)(addr)) #define ext2_clear_bit_atomic(lock, nr, addr) \ test_and_clear_bit((nr), (unsigned long *)(addr)) -#include <asm-generic/bitops/minix.h> - #endif /* __KERNEL__ */ #endif /* _ASM_X86_BITOPS_H */ diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h index 80a1dee..aeff3e8 100644 --- a/arch/x86/include/asm/mmu.h +++ b/arch/x86/include/asm/mmu.h @@ -13,6 +13,12 @@ typedef struct { int size; struct mutex lock; void *vdso; + +#ifdef CONFIG_X86_64 + /* True if mm supports a task running in 32 bit compatibility mode. */ + unsigned short ia32_compat; +#endif + } mm_context_t; #ifdef CONFIG_SMP diff --git a/arch/x86/include/asm/types.h b/arch/x86/include/asm/types.h index 8810205..8e8c23f 100644 --- a/arch/x86/include/asm/types.h +++ b/arch/x86/include/asm/types.h @@ -3,12 +3,4 @@ #include <asm-generic/types.h> -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - -typedef u64 dma64_addr_t; - -#endif /* __ASSEMBLY__ */ -#endif /* __KERNEL__ */ - #endif /* _ASM_X86_TYPES_H */ diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index 4572c58..ff93bc1 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -25,12 +25,12 @@ static char temp_stack[4096]; #endif /** - * acpi_save_state_mem - save kernel state + * acpi_suspend_lowlevel - save kernel state * * Create an identity mapped page table and copy the wakeup routine to * low memory. */ -int acpi_save_state_mem(void) +int acpi_suspend_lowlevel(void) { struct wakeup_header *header; /* address in low memory of the wakeup routine. */ @@ -96,16 +96,10 @@ int acpi_save_state_mem(void) saved_magic = 0x123456789abcdef0L; #endif /* CONFIG_64BIT */ + do_suspend_lowlevel(); return 0; } -/* - * acpi_restore_state - undo effects of acpi_save_state_mem - */ -void acpi_restore_state_mem(void) -{ -} - static int __init acpi_sleep_setup(char *str) { while ((str != NULL) && (*str != '\0')) { diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h index 86ba1c8..416d4be 100644 --- a/arch/x86/kernel/acpi/sleep.h +++ b/arch/x86/kernel/acpi/sleep.h @@ -11,3 +11,5 @@ extern int wakeup_pmode_return; extern unsigned long acpi_copy_wakeup_routine(unsigned long); extern void wakeup_long64(void); + +extern void do_suspend_lowlevel(void); diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index 6e11c81..246d727 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -21,7 +21,7 @@ #include <linux/acpi.h> #include <linux/list.h> #include <linux/slab.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/interrupt.h> #include <linux/msi.h> #include <asm/pci-direct.h> @@ -1260,7 +1260,7 @@ static void disable_iommus(void) * disable suspend until real resume implemented */ -static int amd_iommu_resume(struct sys_device *dev) +static void amd_iommu_resume(void) { struct amd_iommu *iommu; @@ -1276,11 +1276,9 @@ static int amd_iommu_resume(struct sys_device *dev) */ amd_iommu_flush_all_devices(); amd_iommu_flush_all_domains(); - - return 0; } -static int amd_iommu_suspend(struct sys_device *dev, pm_message_t state) +static int amd_iommu_suspend(void) { /* disable IOMMUs to go out of the way for BIOS */ disable_iommus(); @@ -1288,17 +1286,11 @@ static int amd_iommu_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static struct sysdev_class amd_iommu_sysdev_class = { - .name = "amd_iommu", +static struct syscore_ops amd_iommu_syscore_ops = { .suspend = amd_iommu_suspend, .resume = amd_iommu_resume, }; -static struct sys_device device_amd_iommu = { - .id = 0, - .cls = &amd_iommu_sysdev_class, -}; - /* * This is the core init function for AMD IOMMU hardware in the system. * This function is called from the generic x86 DMA layer initialization @@ -1415,14 +1407,6 @@ static int __init amd_iommu_init(void) goto free; } - ret = sysdev_class_register(&amd_iommu_sysdev_class); - if (ret) - goto free; - - ret = sysdev_register(&device_amd_iommu); - if (ret) - goto free; - ret = amd_iommu_init_devices(); if (ret) goto free; @@ -1441,6 +1425,8 @@ static int __init amd_iommu_init(void) amd_iommu_init_notifier(); + register_syscore_ops(&amd_iommu_syscore_ops); + if (iommu_pass_through) goto out; diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index 966673f..fabf01e 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -24,7 +24,7 @@ #include <linux/ftrace.h> #include <linux/ioport.h> #include <linux/module.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/delay.h> #include <linux/timex.h> #include <linux/dmar.h> @@ -2046,7 +2046,7 @@ static struct { unsigned int apic_thmr; } apic_pm_state; -static int lapic_suspend(struct sys_device *dev, pm_message_t state) +static int lapic_suspend(void) { unsigned long flags; int maxlvt; @@ -2084,23 +2084,21 @@ static int lapic_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int lapic_resume(struct sys_device *dev) +static void lapic_resume(void) { unsigned int l, h; unsigned long flags; - int maxlvt; - int ret = 0; + int maxlvt, ret; struct IO_APIC_route_entry **ioapic_entries = NULL; if (!apic_pm_state.active) - return 0; + return; local_irq_save(flags); if (intr_remapping_enabled) { ioapic_entries = alloc_ioapic_entries(); if (!ioapic_entries) { WARN(1, "Alloc ioapic_entries in lapic resume failed."); - ret = -ENOMEM; goto restore; } @@ -2162,8 +2160,6 @@ static int lapic_resume(struct sys_device *dev) } restore: local_irq_restore(flags); - - return ret; } /* @@ -2171,17 +2167,11 @@ restore: * are needed on every CPU up until machine_halt/restart/poweroff. */ -static struct sysdev_class lapic_sysclass = { - .name = "lapic", +static struct syscore_ops lapic_syscore_ops = { .resume = lapic_resume, .suspend = lapic_suspend, }; -static struct sys_device device_lapic = { - .id = 0, - .cls = &lapic_sysclass, -}; - static void __cpuinit apic_pm_activate(void) { apic_pm_state.active = 1; @@ -2189,16 +2179,11 @@ static void __cpuinit apic_pm_activate(void) static int __init init_lapic_sysfs(void) { - int error; - - if (!cpu_has_apic) - return 0; /* XXX: remove suspend/resume procs if !apic_pm_state.active? */ + if (cpu_has_apic) + register_syscore_ops(&lapic_syscore_ops); - error = sysdev_class_register(&lapic_sysclass); - if (!error) - error = sysdev_register(&device_lapic); - return error; + return 0; } /* local apic needs to resume before other devices access its registers. */ diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 180ca24..68df09b 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -30,7 +30,7 @@ #include <linux/compiler.h> #include <linux/acpi.h> #include <linux/module.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/msi.h> #include <linux/htirq.h> #include <linux/freezer.h> @@ -2918,89 +2918,84 @@ static int __init io_apic_bug_finalize(void) late_initcall(io_apic_bug_finalize); -struct sysfs_ioapic_data { - struct sys_device dev; - struct IO_APIC_route_entry entry[0]; -}; -static struct sysfs_ioapic_data * mp_ioapic_data[MAX_IO_APICS]; +static struct IO_APIC_route_entry *ioapic_saved_data[MAX_IO_APICS]; -static int ioapic_suspend(struct sys_device *dev, pm_message_t state) +static void suspend_ioapic(int ioapic_id) { - struct IO_APIC_route_entry *entry; - struct sysfs_ioapic_data *data; + struct IO_APIC_route_entry *saved_data = ioapic_saved_data[ioapic_id]; int i; - data = container_of(dev, struct sysfs_ioapic_data, dev); - entry = data->entry; - for (i = 0; i < nr_ioapic_registers[dev->id]; i ++, entry ++ ) - *entry = ioapic_read_entry(dev->id, i); + if (!saved_data) + return; + + for (i = 0; i < nr_ioapic_registers[ioapic_id]; i++) + saved_data[i] = ioapic_read_entry(ioapic_id, i); +} + +static int ioapic_suspend(void) +{ + int ioapic_id; + + for (ioapic_id = 0; ioapic_id < nr_ioapics; ioapic_id++) + suspend_ioapic(ioapic_id); return 0; } -static int ioapic_resume(struct sys_device *dev) +static void resume_ioapic(int ioapic_id) { - struct IO_APIC_route_entry *entry; - struct sysfs_ioapic_data *data; + struct IO_APIC_route_entry *saved_data = ioapic_saved_data[ioapic_id]; unsigned long flags; union IO_APIC_reg_00 reg_00; int i; - data = container_of(dev, struct sysfs_ioapic_data, dev); - entry = data->entry; + if (!saved_data) + return; raw_spin_lock_irqsave(&ioapic_lock, flags); - reg_00.raw = io_apic_read(dev->id, 0); - if (reg_00.bits.ID != mp_ioapics[dev->id].apicid) { - reg_00.bits.ID = mp_ioapics[dev->id].apicid; - io_apic_write(dev->id, 0, reg_00.raw); + reg_00.raw = io_apic_read(ioapic_id, 0); + if (reg_00.bits.ID != mp_ioapics[ioapic_id].apicid) { + reg_00.bits.ID = mp_ioapics[ioapic_id].apicid; + io_apic_write(ioapic_id, 0, reg_00.raw); } raw_spin_unlock_irqrestore(&ioapic_lock, flags); - for (i = 0; i < nr_ioapic_registers[dev->id]; i++) - ioapic_write_entry(dev->id, i, entry[i]); + for (i = 0; i < nr_ioapic_registers[ioapic_id]; i++) + ioapic_write_entry(ioapic_id, i, saved_data[i]); +} - return 0; +static void ioapic_resume(void) +{ + int ioapic_id; + + for (ioapic_id = nr_ioapics - 1; ioapic_id >= 0; ioapic_id--) + resume_ioapic(ioapic_id); } -static struct sysdev_class ioapic_sysdev_class = { - .name = "ioapic", +static struct syscore_ops ioapic_syscore_ops = { .suspend = ioapic_suspend, .resume = ioapic_resume, }; -static int __init ioapic_init_sysfs(void) +static int __init ioapic_init_ops(void) { - struct sys_device * dev; - int i, size, error; + int i; - error = sysdev_class_register(&ioapic_sysdev_class); - if (error) - return error; + for (i = 0; i < nr_ioapics; i++) { + unsigned int size; - for (i = 0; i < nr_ioapics; i++ ) { - size = sizeof(struct sys_device) + nr_ioapic_registers[i] + size = nr_ioapic_registers[i] * sizeof(struct IO_APIC_route_entry); - mp_ioapic_data[i] = kzalloc(size, GFP_KERNEL); - if (!mp_ioapic_data[i]) { - printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i); - continue; - } - dev = &mp_ioapic_data[i]->dev; - dev->id = i; - dev->cls = &ioapic_sysdev_class; - error = sysdev_register(dev); - if (error) { - kfree(mp_ioapic_data[i]); - mp_ioapic_data[i] = NULL; - printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i); - continue; - } + ioapic_saved_data[i] = kzalloc(size, GFP_KERNEL); + if (!ioapic_saved_data[i]) + pr_err("IOAPIC %d: suspend/resume impossible!\n", i); } + register_syscore_ops(&ioapic_syscore_ops); + return 0; } -device_initcall(ioapic_init_sysfs); +device_initcall(ioapic_init_ops); /* * Dynamic irq allocate and deallocation diff --git a/arch/x86/kernel/cpu/mcheck/mce-apei.c b/arch/x86/kernel/cpu/mcheck/mce-apei.c index 8209472..83930de 100644 --- a/arch/x86/kernel/cpu/mcheck/mce-apei.c +++ b/arch/x86/kernel/cpu/mcheck/mce-apei.c @@ -106,24 +106,34 @@ int apei_write_mce(struct mce *m) ssize_t apei_read_mce(struct mce *m, u64 *record_id) { struct cper_mce_record rcd; - ssize_t len; - - len = erst_read_next(&rcd.hdr, sizeof(rcd)); - if (len <= 0) - return len; - /* Can not skip other records in storage via ERST unless clear them */ - else if (len != sizeof(rcd) || - uuid_le_cmp(rcd.hdr.creator_id, CPER_CREATOR_MCE)) { - if (printk_ratelimit()) - pr_warning( - "MCE-APEI: Can not skip the unknown record in ERST"); - return -EIO; - } - + int rc, pos; + + rc = erst_get_record_id_begin(&pos); + if (rc) + return rc; +retry: + rc = erst_get_record_id_next(&pos, record_id); + if (rc) + goto out; + /* no more record */ + if (*record_id == APEI_ERST_INVALID_RECORD_ID) + goto out; + rc = erst_read(*record_id, &rcd.hdr, sizeof(rcd)); + /* someone else has cleared the record, try next one */ + if (rc == -ENOENT) + goto retry; + else if (rc < 0) + goto out; + /* try to skip other type records in storage */ + else if (rc != sizeof(rcd) || + uuid_le_cmp(rcd.hdr.creator_id, CPER_CREATOR_MCE)) + goto retry; memcpy(m, &rcd.mce, sizeof(*m)); - *record_id = rcd.hdr.record_id; + rc = sizeof(*m); +out: + erst_get_record_id_end(); - return sizeof(*m); + return rc; } /* Check whether there is record in ERST */ diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index ab11229..5a05ef6 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -21,6 +21,7 @@ #include <linux/percpu.h> #include <linux/string.h> #include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/delay.h> #include <linux/ctype.h> #include <linux/sched.h> @@ -1749,14 +1750,14 @@ static int mce_disable_error_reporting(void) return 0; } -static int mce_suspend(struct sys_device *dev, pm_message_t state) +static int mce_suspend(void) { return mce_disable_error_reporting(); } -static int mce_shutdown(struct sys_device *dev) +static void mce_shutdown(void) { - return mce_disable_error_reporting(); + mce_disable_error_reporting(); } /* @@ -1764,14 +1765,18 @@ static int mce_shutdown(struct sys_device *dev) * Only one CPU is active at this time, the others get re-added later using * CPU hotplug: */ -static int mce_resume(struct sys_device *dev) +static void mce_resume(void) { __mcheck_cpu_init_generic(); __mcheck_cpu_init_vendor(__this_cpu_ptr(&cpu_info)); - - return 0; } +static struct syscore_ops mce_syscore_ops = { + .suspend = mce_suspend, + .shutdown = mce_shutdown, + .resume = mce_resume, +}; + static void mce_cpu_restart(void *data) { del_timer_sync(&__get_cpu_var(mce_timer)); @@ -1808,9 +1813,6 @@ static void mce_enable_ce(void *all) } static struct sysdev_class mce_sysclass = { - .suspend = mce_suspend, - .shutdown = mce_shutdown, - .resume = mce_resume, .name = "machinecheck", }; @@ -2139,6 +2141,7 @@ static __init int mcheck_init_device(void) return err; } + register_syscore_ops(&mce_syscore_ops); register_hotcpu_notifier(&mce_cpu_notifier); misc_register(&mce_log_device); diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c index bebabec..307dfbb 100644 --- a/arch/x86/kernel/cpu/mtrr/main.c +++ b/arch/x86/kernel/cpu/mtrr/main.c @@ -45,6 +45,7 @@ #include <linux/cpu.h> #include <linux/pci.h> #include <linux/smp.h> +#include <linux/syscore_ops.h> #include <asm/processor.h> #include <asm/e820.h> @@ -630,7 +631,7 @@ struct mtrr_value { static struct mtrr_value mtrr_value[MTRR_MAX_VAR_RANGES]; -static int mtrr_save(struct sys_device *sysdev, pm_message_t state) +static int mtrr_save(void) { int i; @@ -642,7 +643,7 @@ static int mtrr_save(struct sys_device *sysdev, pm_message_t state) return 0; } -static int mtrr_restore(struct sys_device *sysdev) +static void mtrr_restore(void) { int i; @@ -653,12 +654,11 @@ static int mtrr_restore(struct sys_device *sysdev) mtrr_value[i].ltype); } } - return 0; } -static struct sysdev_driver mtrr_sysdev_driver = { +static struct syscore_ops mtrr_syscore_ops = { .suspend = mtrr_save, .resume = mtrr_restore, }; @@ -839,7 +839,7 @@ static int __init mtrr_init_finialize(void) * TBD: is there any system with such CPU which supports * suspend/resume? If no, we should remove the code. */ - sysdev_driver_register(&cpu_sysdev_class, &mtrr_sysdev_driver); + register_syscore_ops(&mtrr_syscore_ops); return 0; } diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index 87eab4a..eed3673a 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -500,12 +500,17 @@ static bool check_hw_exists(void) return true; bios_fail: - printk(KERN_CONT "Broken BIOS detected, using software events only.\n"); + /* + * We still allow the PMU driver to operate: + */ + printk(KERN_CONT "Broken BIOS detected, complain to your hardware vendor.\n"); printk(KERN_ERR FW_BUG "the BIOS has corrupted hw-PMU resources (MSR %x is %Lx)\n", reg, val); - return false; + + return true; msr_fail: printk(KERN_CONT "Broken PMU hardware detected, using software events only.\n"); + return false; } @@ -912,7 +917,7 @@ static inline void x86_assign_hw_event(struct perf_event *event, hwc->event_base = 0; } else if (hwc->idx >= X86_PMC_IDX_FIXED) { hwc->config_base = MSR_ARCH_PERFMON_FIXED_CTR_CTRL; - hwc->event_base = MSR_ARCH_PERFMON_FIXED_CTR0; + hwc->event_base = MSR_ARCH_PERFMON_FIXED_CTR0 + (hwc->idx - X86_PMC_IDX_FIXED); } else { hwc->config_base = x86_pmu_config_addr(hwc->idx); hwc->event_base = x86_pmu_event_addr(hwc->idx); diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c index 0811f5e..c2520e1 100644 --- a/arch/x86/kernel/cpu/perf_event_p4.c +++ b/arch/x86/kernel/cpu/perf_event_p4.c @@ -777,6 +777,7 @@ static inline int p4_pmu_clear_cccr_ovf(struct hw_perf_event *hwc) * the counter has reached zero value and continued counting before * real NMI signal was received: */ + rdmsrl(hwc->event_base, v); if (!(v & ARCH_P4_UNFLAGGED_BIT)) return 1; diff --git a/arch/x86/kernel/crash_dump_32.c b/arch/x86/kernel/crash_dump_32.c index d5cd139..642f75a 100644 --- a/arch/x86/kernel/crash_dump_32.c +++ b/arch/x86/kernel/crash_dump_32.c @@ -14,9 +14,6 @@ static void *kdump_buf_page; -/* Stores the physical address of elf header of crash image. */ -unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; - static inline bool is_crashed_pfn_valid(unsigned long pfn) { #ifndef CONFIG_X86_PAE diff --git a/arch/x86/kernel/crash_dump_64.c b/arch/x86/kernel/crash_dump_64.c index 9948288..afa64ad 100644 --- a/arch/x86/kernel/crash_dump_64.c +++ b/arch/x86/kernel/crash_dump_64.c @@ -10,9 +10,6 @@ #include <linux/uaccess.h> #include <linux/io.h> -/* Stores the physical address of elf header of crash image. */ -unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; - /** * copy_oldmem_page - copy one page from "oldmem" * @pfn: page frame number to be copied diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c index 7a8cebc..706a9fb 100644 --- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -65,12 +65,10 @@ unsigned int irq_create_of_mapping(struct device_node *controller, return 0; ret = ih->xlate(ih, intspec, intsize, &virq, &type); if (ret) - return ret; + return 0; if (type == IRQ_TYPE_NONE) return virq; - /* set the mask if it is different from current */ - if (type == (irq_to_desc(virq)->status & IRQF_TRIGGER_MASK)) - set_irq_type(virq, type); + irq_set_irq_type(virq, type); return virq; } EXPORT_SYMBOL_GPL(irq_create_of_mapping); diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index 81ac6c7..e2a3f06 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -27,7 +27,7 @@ static int die_counter; void printk_address(unsigned long address, int reliable) { - printk(" [<%p>] %s%pS\n", (void *) address, + printk(" [<%p>] %s%pB\n", (void *) address, reliable ? "" : "? ", (void *) address); } diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index cdf5bfd..3e2ef84 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -11,6 +11,7 @@ #include <linux/kernel.h> #include <linux/types.h> #include <linux/init.h> +#include <linux/crash_dump.h> #include <linux/bootmem.h> #include <linux/pfn.h> #include <linux/suspend.h> diff --git a/arch/x86/kernel/i8237.c b/arch/x86/kernel/i8237.c index b42ca69..8eeaa81 100644 --- a/arch/x86/kernel/i8237.c +++ b/arch/x86/kernel/i8237.c @@ -10,7 +10,7 @@ */ #include <linux/init.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <asm/dma.h> @@ -21,7 +21,7 @@ * in asm/dma.h. */ -static int i8237A_resume(struct sys_device *dev) +static void i8237A_resume(void) { unsigned long flags; int i; @@ -41,31 +41,15 @@ static int i8237A_resume(struct sys_device *dev) enable_dma(4); release_dma_lock(flags); - - return 0; } -static int i8237A_suspend(struct sys_device *dev, pm_message_t state) -{ - return 0; -} - -static struct sysdev_class i8237_sysdev_class = { - .name = "i8237", - .suspend = i8237A_suspend, +static struct syscore_ops i8237_syscore_ops = { .resume = i8237A_resume, }; -static struct sys_device device_i8237A = { - .id = 0, - .cls = &i8237_sysdev_class, -}; - -static int __init i8237A_init_sysfs(void) +static int __init i8237A_init_ops(void) { - int error = sysdev_class_register(&i8237_sysdev_class); - if (!error) - error = sysdev_register(&device_i8237A); - return error; + register_syscore_ops(&i8237_syscore_ops); + return 0; } -device_initcall(i8237A_init_sysfs); +device_initcall(i8237A_init_ops); diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c index d9ca749..65b8f5c 100644 --- a/arch/x86/kernel/i8259.c +++ b/arch/x86/kernel/i8259.c @@ -8,7 +8,7 @@ #include <linux/random.h> #include <linux/init.h> #include <linux/kernel_stat.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/bitops.h> #include <linux/acpi.h> #include <linux/io.h> @@ -245,20 +245,19 @@ static void save_ELCR(char *trigger) trigger[1] = inb(0x4d1) & 0xDE; } -static int i8259A_resume(struct sys_device *dev) +static void i8259A_resume(void) { init_8259A(i8259A_auto_eoi); restore_ELCR(irq_trigger); - return 0; } -static int i8259A_suspend(struct sys_device *dev, pm_message_t state) +static int i8259A_suspend(void) { save_ELCR(irq_trigger); return 0; } -static int i8259A_shutdown(struct sys_device *dev) +static void i8259A_shutdown(void) { /* Put the i8259A into a quiescent state that * the kernel initialization code can get it @@ -266,21 +265,14 @@ static int i8259A_shutdown(struct sys_device *dev) */ outb(0xff, PIC_MASTER_IMR); /* mask all of 8259A-1 */ outb(0xff, PIC_SLAVE_IMR); /* mask all of 8259A-1 */ - return 0; } -static struct sysdev_class i8259_sysdev_class = { - .name = "i8259", +static struct syscore_ops i8259_syscore_ops = { .suspend = i8259A_suspend, .resume = i8259A_resume, .shutdown = i8259A_shutdown, }; -static struct sys_device device_i8259A = { - .id = 0, - .cls = &i8259_sysdev_class, -}; - static void mask_8259A(void) { unsigned long flags; @@ -399,17 +391,12 @@ struct legacy_pic default_legacy_pic = { struct legacy_pic *legacy_pic = &default_legacy_pic; -static int __init i8259A_init_sysfs(void) +static int __init i8259A_init_ops(void) { - int error; - - if (legacy_pic != &default_legacy_pic) - return 0; + if (legacy_pic == &default_legacy_pic) + register_syscore_ops(&i8259_syscore_ops); - error = sysdev_class_register(&i8259_sysdev_class); - if (!error) - error = sysdev_register(&device_i8259A); - return error; + return 0; } -device_initcall(i8259A_init_sysfs); +device_initcall(i8259A_init_ops); diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c index dba0b36..5f9ecff 100644 --- a/arch/x86/kernel/kgdb.c +++ b/arch/x86/kernel/kgdb.c @@ -121,8 +121,8 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs) memcpy(mem, (void *)regs + dbg_reg_def[regno].offset, dbg_reg_def[regno].size); - switch (regno) { #ifdef CONFIG_X86_32 + switch (regno) { case GDB_SS: if (!user_mode_vm(regs)) *(unsigned long *)mem = __KERNEL_DS; @@ -135,8 +135,8 @@ char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs) case GDB_FS: *(unsigned long *)mem = 0xFFFF; break; -#endif } +#endif return dbg_reg_def[regno].name; } diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c index 87af68e..5ed0ab5 100644 --- a/arch/x86/kernel/microcode_core.c +++ b/arch/x86/kernel/microcode_core.c @@ -82,6 +82,7 @@ #include <linux/cpu.h> #include <linux/fs.h> #include <linux/mm.h> +#include <linux/syscore_ops.h> #include <asm/microcode.h> #include <asm/processor.h> @@ -438,33 +439,25 @@ static int mc_sysdev_remove(struct sys_device *sys_dev) return 0; } -static int mc_sysdev_resume(struct sys_device *dev) +static struct sysdev_driver mc_sysdev_driver = { + .add = mc_sysdev_add, + .remove = mc_sysdev_remove, +}; + +/** + * mc_bp_resume - Update boot CPU microcode during resume. + */ +static void mc_bp_resume(void) { - int cpu = dev->id; + int cpu = smp_processor_id(); struct ucode_cpu_info *uci = ucode_cpu_info + cpu; - if (!cpu_online(cpu)) - return 0; - - /* - * All non-bootup cpus are still disabled, - * so only CPU 0 will apply ucode here. - * - * Moreover, there can be no concurrent - * updates from any other places at this point. - */ - WARN_ON(cpu != 0); - if (uci->valid && uci->mc) microcode_ops->apply_microcode(cpu); - - return 0; } -static struct sysdev_driver mc_sysdev_driver = { - .add = mc_sysdev_add, - .remove = mc_sysdev_remove, - .resume = mc_sysdev_resume, +static struct syscore_ops mc_syscore_ops = { + .resume = mc_bp_resume, }; static __cpuinit int @@ -542,6 +535,7 @@ static int __init microcode_init(void) if (error) return error; + register_syscore_ops(&mc_syscore_ops); register_hotcpu_notifier(&mc_cpu_notifier); pr_info("Microcode Update Driver: v" MICROCODE_VERSION diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index 6f789a8..5a532ce 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -714,10 +714,6 @@ static void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) *nr_m_spare += 1; } } -#else /* CONFIG_X86_IO_APIC */ -static -inline void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) {} -#endif /* CONFIG_X86_IO_APIC */ static int check_slot(unsigned long mpc_new_phys, unsigned long mpc_new_length, int count) @@ -731,6 +727,10 @@ check_slot(unsigned long mpc_new_phys, unsigned long mpc_new_length, int count) return ret; } +#else /* CONFIG_X86_IO_APIC */ +static +inline void __init check_irq_src(struct mpc_intsrc *m, int *nr_m_spare) {} +#endif /* CONFIG_X86_IO_APIC */ static int __init replace_intsrc_all(struct mpc_table *mpc, unsigned long mpc_new_phys, diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index c01ffa5..82ada01 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c @@ -27,7 +27,7 @@ #include <linux/kdebug.h> #include <linux/scatterlist.h> #include <linux/iommu-helper.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/io.h> #include <linux/gfp.h> #include <asm/atomic.h> @@ -589,7 +589,7 @@ void set_up_gart_resume(u32 aper_order, u32 aper_alloc) aperture_alloc = aper_alloc; } -static void gart_fixup_northbridges(struct sys_device *dev) +static void gart_fixup_northbridges(void) { int i; @@ -613,33 +613,20 @@ static void gart_fixup_northbridges(struct sys_device *dev) } } -static int gart_resume(struct sys_device *dev) +static void gart_resume(void) { pr_info("PCI-DMA: Resuming GART IOMMU\n"); - gart_fixup_northbridges(dev); + gart_fixup_northbridges(); enable_gart_translations(); - - return 0; } -static int gart_suspend(struct sys_device *dev, pm_message_t state) -{ - return 0; -} - -static struct sysdev_class gart_sysdev_class = { - .name = "gart", - .suspend = gart_suspend, +static struct syscore_ops gart_syscore_ops = { .resume = gart_resume, }; -static struct sys_device device_gart = { - .cls = &gart_sysdev_class, -}; - /* * Private Northbridge GATT initialization in case we cannot use the * AGP driver for some reason. @@ -650,7 +637,7 @@ static __init int init_amd_gatt(struct agp_kern_info *info) unsigned aper_base, new_aper_base; struct pci_dev *dev; void *gatt; - int i, error; + int i; pr_info("PCI-DMA: Disabling AGP.\n"); @@ -685,12 +672,7 @@ static __init int init_amd_gatt(struct agp_kern_info *info) agp_gatt_table = gatt; - error = sysdev_class_register(&gart_sysdev_class); - if (!error) - error = sysdev_register(&device_gart); - if (error) - panic("Could not register gart_sysdev -- " - "would corrupt data on next suspend"); + register_syscore_ops(&gart_syscore_ops); flush_gart(); diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index bd387e8..6c9dd92 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -501,6 +501,10 @@ void set_personality_64bit(void) /* Make sure to be in 64bit mode */ clear_thread_flag(TIF_IA32); + /* Ensure the corresponding mm is not marked. */ + if (current->mm) + current->mm->context.ia32_compat = 0; + /* TBD: overwrites user setup. Should have two bits. But 64bit processes have always behaved this way, so it's not too bad. The main problem is just that @@ -516,6 +520,10 @@ void set_personality_ia32(void) set_thread_flag(TIF_IA32); current->personality |= force_personality32; + /* Mark the associated mm as containing 32-bit tasks. */ + if (current->mm) + current->mm->context.ia32_compat = 1; + /* Prepare the first "return" to user space */ current_thread_info()->status |= TS_COMPAT; } diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 32bd87c..5a0484a 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -619,28 +619,6 @@ void __init reserve_standard_io_resources(void) } -/* - * Note: elfcorehdr_addr is not just limited to vmcore. It is also used by - * is_kdump_kernel() to determine if we are booting after a panic. Hence - * ifdef it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE. - */ - -#ifdef CONFIG_CRASH_DUMP -/* elfcorehdr= specifies the location of elf core header - * stored by the crashed kernel. This option will be passed - * by kexec loader to the capture kernel. - */ -static int __init setup_elfcorehdr(char *arg) -{ - char *end; - if (!arg) - return -EINVAL; - elfcorehdr_addr = memparse(arg, &end); - return end > arg ? 0 : -EINVAL; -} -early_param("elfcorehdr", setup_elfcorehdr); -#endif - static __init void reserve_ibft_region(void) { unsigned long addr, size = 0; diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 2362b64..7942335 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -862,18 +862,18 @@ static struct vm_area_struct gate_vma = { .vm_flags = VM_READ | VM_EXEC }; -struct vm_area_struct *get_gate_vma(struct task_struct *tsk) +struct vm_area_struct *get_gate_vma(struct mm_struct *mm) { #ifdef CONFIG_IA32_EMULATION - if (test_tsk_thread_flag(tsk, TIF_IA32)) + if (!mm || mm->context.ia32_compat) return NULL; #endif return &gate_vma; } -int in_gate_area(struct task_struct *task, unsigned long addr) +int in_gate_area(struct mm_struct *mm, unsigned long addr) { - struct vm_area_struct *vma = get_gate_vma(task); + struct vm_area_struct *vma = get_gate_vma(mm); if (!vma) return 0; @@ -882,11 +882,11 @@ int in_gate_area(struct task_struct *task, unsigned long addr) } /* - * Use this when you have no reliable task/vma, typically from interrupt - * context. It is less reliable than using the task's vma and may give - * false positives: + * Use this when you have no reliable mm, typically from interrupt + * context. It is less reliable than using a task's mm and may give + * false positives. */ -int in_gate_area_no_task(unsigned long addr) +int in_gate_area_no_mm(unsigned long addr) { return (addr >= VSYSCALL_START) && (addr < VSYSCALL_END); } diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index e2b7b0c..8dace18 100644 --- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -15,7 +15,7 @@ #include <linux/notifier.h> #include <linux/smp.h> #include <linux/oprofile.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/slab.h> #include <linux/moduleparam.h> #include <linux/kdebug.h> @@ -536,7 +536,7 @@ static void nmi_shutdown(void) #ifdef CONFIG_PM -static int nmi_suspend(struct sys_device *dev, pm_message_t state) +static int nmi_suspend(void) { /* Only one CPU left, just stop that one */ if (nmi_enabled == 1) @@ -544,49 +544,31 @@ static int nmi_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int nmi_resume(struct sys_device *dev) +static void nmi_resume(void) { if (nmi_enabled == 1) nmi_cpu_start(NULL); - return 0; } -static struct sysdev_class oprofile_sysclass = { - .name = "oprofile", +static struct syscore_ops oprofile_syscore_ops = { .resume = nmi_resume, .suspend = nmi_suspend, }; -static struct sys_device device_oprofile = { - .id = 0, - .cls = &oprofile_sysclass, -}; - -static int __init init_sysfs(void) +static void __init init_suspend_resume(void) { - int error; - - error = sysdev_class_register(&oprofile_sysclass); - if (error) - return error; - - error = sysdev_register(&device_oprofile); - if (error) - sysdev_class_unregister(&oprofile_sysclass); - - return error; + register_syscore_ops(&oprofile_syscore_ops); } -static void exit_sysfs(void) +static void exit_suspend_resume(void) { - sysdev_unregister(&device_oprofile); - sysdev_class_unregister(&oprofile_sysclass); + unregister_syscore_ops(&oprofile_syscore_ops); } #else -static inline int init_sysfs(void) { return 0; } -static inline void exit_sysfs(void) { } +static inline void init_suspend_resume(void) { } +static inline void exit_suspend_resume(void) { } #endif /* CONFIG_PM */ @@ -789,9 +771,7 @@ int __init op_nmi_init(struct oprofile_operations *ops) mux_init(ops); - ret = init_sysfs(); - if (ret) - return ret; + init_suspend_resume(); printk(KERN_INFO "oprofile: using NMI interrupt.\n"); return 0; @@ -799,5 +779,5 @@ int __init op_nmi_init(struct oprofile_operations *ops) void op_nmi_exit(void) { - exit_sysfs(); + exit_suspend_resume(); } diff --git a/arch/x86/platform/olpc/olpc-xo1.c b/arch/x86/platform/olpc/olpc-xo1.c index 1277756..9951364 100644 --- a/arch/x86/platform/olpc/olpc-xo1.c +++ b/arch/x86/platform/olpc/olpc-xo1.c @@ -15,6 +15,7 @@ #include <linux/module.h> #include <linux/platform_device.h> #include <linux/pm.h> +#include <linux/mfd/core.h> #include <asm/io.h> #include <asm/olpc.h> @@ -56,25 +57,24 @@ static void xo1_power_off(void) static int __devinit olpc_xo1_probe(struct platform_device *pdev) { struct resource *res; + int err; /* don't run on non-XOs */ if (!machine_is_olpc()) return -ENODEV; + err = mfd_cell_enable(pdev); + if (err) + return err; + res = platform_get_resource(pdev, IORESOURCE_IO, 0); if (!res) { dev_err(&pdev->dev, "can't fetch device resource info\n"); return -EIO; } - - if (!request_region(res->start, resource_size(res), DRV_NAME)) { - dev_err(&pdev->dev, "can't request region\n"); - return -EIO; - } - - if (strcmp(pdev->name, "cs5535-pms") == 0) + if (strcmp(pdev->name, "olpc-xo1-pms") == 0) pms_base = res->start; - else if (strcmp(pdev->name, "cs5535-acpi") == 0) + else if (strcmp(pdev->name, "olpc-xo1-ac-acpi") == 0) acpi_base = res->start; /* If we have both addresses, we can override the poweroff hook */ @@ -88,14 +88,11 @@ static int __devinit olpc_xo1_probe(struct platform_device *pdev) static int __devexit olpc_xo1_remove(struct platform_device *pdev) { - struct resource *r; - - r = platform_get_resource(pdev, IORESOURCE_IO, 0); - release_region(r->start, resource_size(r)); + mfd_cell_disable(pdev); - if (strcmp(pdev->name, "cs5535-pms") == 0) + if (strcmp(pdev->name, "olpc-xo1-pms") == 0) pms_base = 0; - else if (strcmp(pdev->name, "cs5535-acpi") == 0) + else if (strcmp(pdev->name, "olpc-xo1-acpi") == 0) acpi_base = 0; pm_power_off = NULL; @@ -104,7 +101,7 @@ static int __devexit olpc_xo1_remove(struct platform_device *pdev) static struct platform_driver cs5535_pms_drv = { .driver = { - .name = "cs5535-pms", + .name = "olpc-xo1-pms", .owner = THIS_MODULE, }, .probe = olpc_xo1_probe, @@ -113,7 +110,7 @@ static struct platform_driver cs5535_pms_drv = { static struct platform_driver cs5535_acpi_drv = { .driver = { - .name = "cs5535-acpi", + .name = "olpc-xo1-acpi", .owner = THIS_MODULE, }, .probe = olpc_xo1_probe, @@ -124,26 +121,27 @@ static int __init olpc_xo1_init(void) { int r; - r = platform_driver_register(&cs5535_pms_drv); + r = mfd_shared_platform_driver_register(&cs5535_pms_drv, "cs5535-pms"); if (r) return r; - r = platform_driver_register(&cs5535_acpi_drv); + r = mfd_shared_platform_driver_register(&cs5535_acpi_drv, + "cs5535-acpi"); if (r) - platform_driver_unregister(&cs5535_pms_drv); + mfd_shared_platform_driver_unregister(&cs5535_pms_drv); return r; } static void __exit olpc_xo1_exit(void) { - platform_driver_unregister(&cs5535_acpi_drv); - platform_driver_unregister(&cs5535_pms_drv); + mfd_shared_platform_driver_unregister(&cs5535_acpi_drv); + mfd_shared_platform_driver_unregister(&cs5535_pms_drv); } MODULE_AUTHOR("Daniel Drake <dsd@laptop.org>"); MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:olpc-xo1"); +MODULE_ALIAS("platform:cs5535-pms"); module_init(olpc_xo1_init); module_exit(olpc_xo1_exit); diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c index 36df991..468d591 100644 --- a/arch/x86/vdso/vdso32-setup.c +++ b/arch/x86/vdso/vdso32-setup.c @@ -417,24 +417,25 @@ const char *arch_vma_name(struct vm_area_struct *vma) return NULL; } -struct vm_area_struct *get_gate_vma(struct task_struct *tsk) +struct vm_area_struct *get_gate_vma(struct mm_struct *mm) { - struct mm_struct *mm = tsk->mm; - - /* Check to see if this task was created in compat vdso mode */ + /* + * Check to see if the corresponding task was created in compat vdso + * mode. + */ if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE) return &gate_vma; return NULL; } -int in_gate_area(struct task_struct *task, unsigned long addr) +int in_gate_area(struct mm_struct *mm, unsigned long addr) { - const struct vm_area_struct *vma = get_gate_vma(task); + const struct vm_area_struct *vma = get_gate_vma(mm); return vma && addr >= vma->vm_start && addr < vma->vm_end; } -int in_gate_area_no_task(unsigned long addr) +int in_gate_area_no_mm(unsigned long addr) { return 0; } |