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-rw-r--r--arch/x86/kernel/acpi/wakeup_64.S30
-rw-r--r--arch/x86/kernel/apic.c2
-rw-r--r--arch/x86/kernel/apm_32.c4
-rw-r--r--arch/x86/kernel/cpu/cpufreq/p4-clockmod.c1
-rw-r--r--arch/x86/kernel/cpu/cpufreq/powernow-k8.c12
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce_64.c7
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce_amd_64.c2
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce_intel_64.c4
-rw-r--r--arch/x86/kernel/ds.c3
-rw-r--r--arch/x86/kernel/efi.c7
-rw-r--r--arch/x86/kernel/efi_64.c21
-rw-r--r--arch/x86/kernel/hpet.c2
-rw-r--r--arch/x86/kernel/i387.c2
-rw-r--r--arch/x86/kernel/olpc.c2
-rw-r--r--arch/x86/kernel/paravirt.c26
-rw-r--r--arch/x86/kernel/process_32.c3
-rw-r--r--arch/x86/kernel/ptrace.c18
-rw-r--r--arch/x86/kernel/reboot.c8
-rw-r--r--arch/x86/kernel/setup.c5
-rw-r--r--arch/x86/kernel/time_64.c2
-rw-r--r--arch/x86/kernel/traps.c10
-rw-r--r--arch/x86/kernel/vmiclock_32.c7
22 files changed, 106 insertions, 72 deletions
diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S
index bcc293423a7..96258d9dc97 100644
--- a/arch/x86/kernel/acpi/wakeup_64.S
+++ b/arch/x86/kernel/acpi/wakeup_64.S
@@ -13,7 +13,6 @@
* Hooray, we are in Long 64-bit mode (but still running in low memory)
*/
ENTRY(wakeup_long64)
-wakeup_long64:
movq saved_magic, %rax
movq $0x123456789abcdef0, %rdx
cmpq %rdx, %rax
@@ -34,16 +33,12 @@ wakeup_long64:
movq saved_rip, %rax
jmp *%rax
+ENDPROC(wakeup_long64)
bogus_64_magic:
jmp bogus_64_magic
- .align 2
- .p2align 4,,15
-.globl do_suspend_lowlevel
- .type do_suspend_lowlevel,@function
-do_suspend_lowlevel:
-.LFB5:
+ENTRY(do_suspend_lowlevel)
subq $8, %rsp
xorl %eax, %eax
call save_processor_state
@@ -67,7 +62,7 @@ do_suspend_lowlevel:
pushfq
popq pt_regs_flags(%rax)
- movq $.L97, saved_rip(%rip)
+ movq $resume_point, saved_rip(%rip)
movq %rsp, saved_rsp
movq %rbp, saved_rbp
@@ -78,14 +73,12 @@ do_suspend_lowlevel:
addq $8, %rsp
movl $3, %edi
xorl %eax, %eax
- jmp acpi_enter_sleep_state
-.L97:
- .p2align 4,,7
-.L99:
- .align 4
- movl $24, %eax
- movw %ax, %ds
+ call acpi_enter_sleep_state
+ /* in case something went wrong, restore the machine status and go on */
+ jmp resume_point
+ .align 4
+resume_point:
/* We don't restore %rax, it must be 0 anyway */
movq $saved_context, %rax
movq saved_context_cr4(%rax), %rbx
@@ -117,12 +110,9 @@ do_suspend_lowlevel:
xorl %eax, %eax
addq $8, %rsp
jmp restore_processor_state
-.LFE5:
-.Lfe5:
- .size do_suspend_lowlevel, .Lfe5-do_suspend_lowlevel
-
+ENDPROC(do_suspend_lowlevel)
+
.data
-ALIGN
ENTRY(saved_rbp) .quad 0
ENTRY(saved_rsi) .quad 0
ENTRY(saved_rdi) .quad 0
diff --git a/arch/x86/kernel/apic.c b/arch/x86/kernel/apic.c
index 115449f869e..570f36e44e5 100644
--- a/arch/x86/kernel/apic.c
+++ b/arch/x86/kernel/apic.c
@@ -862,7 +862,7 @@ void clear_local_APIC(void)
}
/* lets not touch this if we didn't frob it */
-#if defined(CONFIG_X86_MCE_P4THERMAL) || defined(X86_MCE_INTEL)
+#if defined(CONFIG_X86_MCE_P4THERMAL) || defined(CONFIG_X86_MCE_INTEL)
if (maxlvt >= 5) {
v = apic_read(APIC_LVTTHMR);
apic_write(APIC_LVTTHMR, v | APIC_LVT_MASKED);
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 98807bb095a..266ec6c18b6 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -1192,6 +1192,7 @@ static int suspend(int vetoable)
device_suspend(PMSG_SUSPEND);
local_irq_disable();
device_power_down(PMSG_SUSPEND);
+ sysdev_suspend(PMSG_SUSPEND);
local_irq_enable();
@@ -1208,6 +1209,7 @@ static int suspend(int vetoable)
if (err != APM_SUCCESS)
apm_error("suspend", err);
err = (err == APM_SUCCESS) ? 0 : -EIO;
+ sysdev_resume();
device_power_up(PMSG_RESUME);
local_irq_enable();
device_resume(PMSG_RESUME);
@@ -1228,6 +1230,7 @@ static void standby(void)
local_irq_disable();
device_power_down(PMSG_SUSPEND);
+ sysdev_suspend(PMSG_SUSPEND);
local_irq_enable();
err = set_system_power_state(APM_STATE_STANDBY);
@@ -1235,6 +1238,7 @@ static void standby(void)
apm_error("standby", err);
local_irq_disable();
+ sysdev_resume();
device_power_up(PMSG_RESUME);
local_irq_enable();
}
diff --git a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
index b585e04cbc9..3178c3acd97 100644
--- a/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
+++ b/arch/x86/kernel/cpu/cpufreq/p4-clockmod.c
@@ -277,7 +277,6 @@ static struct cpufreq_driver p4clockmod_driver = {
.name = "p4-clockmod",
.owner = THIS_MODULE,
.attr = p4clockmod_attr,
- .hide_interface = 1,
};
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index fb039cd345d..6428aa17b40 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -1157,8 +1157,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
data->cpu = pol->cpu;
data->currpstate = HW_PSTATE_INVALID;
- rc = powernow_k8_cpu_init_acpi(data);
- if (rc) {
+ if (powernow_k8_cpu_init_acpi(data)) {
/*
* Use the PSB BIOS structure. This is only availabe on
* an UP version, and is deprecated by AMD.
@@ -1176,17 +1175,20 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
"ACPI maintainers and complain to your BIOS "
"vendor.\n");
#endif
- goto err_out;
+ kfree(data);
+ return -ENODEV;
}
if (pol->cpu != 0) {
printk(KERN_ERR FW_BUG PFX "No ACPI _PSS objects for "
"CPU other than CPU0. Complain to your BIOS "
"vendor.\n");
- goto err_out;
+ kfree(data);
+ return -ENODEV;
}
rc = find_psb_table(data);
if (rc) {
- goto err_out;
+ kfree(data);
+ return -ENODEV;
}
/* Take a crude guess here.
* That guess was in microseconds, so multiply with 1000 */
diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index 1c838032fd3..fe79985ce0f 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -295,11 +295,11 @@ void do_machine_check(struct pt_regs * regs, long error_code)
* If we know that the error was in user space, send a
* SIGBUS. Otherwise, panic if tolerance is low.
*
- * do_exit() takes an awful lot of locks and has a slight
+ * force_sig() takes an awful lot of locks and has a slight
* risk of deadlocking.
*/
if (user_space) {
- do_exit(SIGBUS);
+ force_sig(SIGBUS, current);
} else if (panic_on_oops || tolerant < 2) {
mce_panic("Uncorrected machine check",
&panicm, mcestart);
@@ -490,7 +490,7 @@ static void __cpuinit mce_cpu_quirks(struct cpuinfo_x86 *c)
}
-static void __cpuinit mce_cpu_features(struct cpuinfo_x86 *c)
+static void mce_cpu_features(struct cpuinfo_x86 *c)
{
switch (c->x86_vendor) {
case X86_VENDOR_INTEL:
@@ -734,6 +734,7 @@ __setup("mce=", mcheck_enable);
static int mce_resume(struct sys_device *dev)
{
mce_init(NULL);
+ mce_cpu_features(&current_cpu_data);
return 0;
}
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
index 8ae8c4ff094..f2ee0ae29bd 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c
@@ -121,7 +121,7 @@ static long threshold_restart_bank(void *_tr)
}
/* cpu init entry point, called from mce.c with preempt off */
-void __cpuinit mce_amd_feature_init(struct cpuinfo_x86 *c)
+void mce_amd_feature_init(struct cpuinfo_x86 *c)
{
unsigned int bank, block;
unsigned int cpu = smp_processor_id();
diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel_64.c b/arch/x86/kernel/cpu/mcheck/mce_intel_64.c
index 4b48f251fd3..f44c3662436 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_intel_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_intel_64.c
@@ -30,7 +30,7 @@ asmlinkage void smp_thermal_interrupt(void)
irq_exit();
}
-static void __cpuinit intel_init_thermal(struct cpuinfo_x86 *c)
+static void intel_init_thermal(struct cpuinfo_x86 *c)
{
u32 l, h;
int tm2 = 0;
@@ -84,7 +84,7 @@ static void __cpuinit intel_init_thermal(struct cpuinfo_x86 *c)
return;
}
-void __cpuinit mce_intel_feature_init(struct cpuinfo_x86 *c)
+void mce_intel_feature_init(struct cpuinfo_x86 *c)
{
intel_init_thermal(c);
}
diff --git a/arch/x86/kernel/ds.c b/arch/x86/kernel/ds.c
index 169a120587b..87b67e3a765 100644
--- a/arch/x86/kernel/ds.c
+++ b/arch/x86/kernel/ds.c
@@ -729,7 +729,7 @@ struct pebs_tracer *ds_request_pebs(struct task_struct *task,
spin_unlock_irqrestore(&ds_lock, irq);
- ds_write_config(tracer->ds.context, &tracer->trace.ds, ds_bts);
+ ds_write_config(tracer->ds.context, &tracer->trace.ds, ds_pebs);
ds_resume_pebs(tracer);
return tracer;
@@ -1029,5 +1029,4 @@ void ds_copy_thread(struct task_struct *tsk, struct task_struct *father)
void ds_exit_thread(struct task_struct *tsk)
{
- WARN_ON(tsk->thread.ds_ctx);
}
diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index 1119d247fe1..eb1ef3b67dd 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -467,7 +467,7 @@ void __init efi_enter_virtual_mode(void)
efi_memory_desc_t *md;
efi_status_t status;
unsigned long size;
- u64 end, systab, addr, npages;
+ u64 end, systab, addr, npages, end_pfn;
void *p, *va;
efi.systab = NULL;
@@ -479,7 +479,10 @@ void __init efi_enter_virtual_mode(void)
size = md->num_pages << EFI_PAGE_SHIFT;
end = md->phys_addr + size;
- if (PFN_UP(end) <= max_low_pfn_mapped)
+ end_pfn = PFN_UP(end);
+ if (end_pfn <= max_low_pfn_mapped
+ || (end_pfn > (1UL << (32 - PAGE_SHIFT))
+ && end_pfn <= max_pfn_mapped))
va = __va(md->phys_addr);
else
va = efi_ioremap(md->phys_addr, size);
diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c
index 652c5287215..cb783b92c50 100644
--- a/arch/x86/kernel/efi_64.c
+++ b/arch/x86/kernel/efi_64.c
@@ -99,24 +99,11 @@ void __init efi_call_phys_epilog(void)
void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size)
{
- static unsigned pages_mapped __initdata;
- unsigned i, pages;
- unsigned long offset;
+ unsigned long last_map_pfn;
- pages = PFN_UP(phys_addr + size) - PFN_DOWN(phys_addr);
- offset = phys_addr & ~PAGE_MASK;
- phys_addr &= PAGE_MASK;
-
- if (pages_mapped + pages > MAX_EFI_IO_PAGES)
+ last_map_pfn = init_memory_mapping(phys_addr, phys_addr + size);
+ if ((last_map_pfn << PAGE_SHIFT) < phys_addr + size)
return NULL;
- for (i = 0; i < pages; i++) {
- __set_fixmap(FIX_EFI_IO_MAP_FIRST_PAGE - pages_mapped,
- phys_addr, PAGE_KERNEL);
- phys_addr += PAGE_SIZE;
- pages_mapped++;
- }
-
- return (void __iomem *)__fix_to_virt(FIX_EFI_IO_MAP_FIRST_PAGE - \
- (pages_mapped - pages)) + offset;
+ return (void __iomem *)__va(phys_addr);
}
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 388254f69a2..a00545fe5cd 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -269,6 +269,8 @@ static void hpet_set_mode(enum clock_event_mode mode,
now = hpet_readl(HPET_COUNTER);
cmp = now + (unsigned long) delta;
cfg = hpet_readl(HPET_Tn_CFG(timer));
+ /* Make sure we use edge triggered interrupts */
+ cfg &= ~HPET_TN_LEVEL;
cfg |= HPET_TN_ENABLE | HPET_TN_PERIODIC |
HPET_TN_SETVAL | HPET_TN_32BIT;
hpet_writel(cfg, HPET_Tn_CFG(timer));
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index b0f61f0dcd0..f2f8540a7f3 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -136,7 +136,7 @@ int init_fpu(struct task_struct *tsk)
#ifdef CONFIG_X86_32
if (!HAVE_HWFP) {
memset(tsk->thread.xstate, 0, xstate_size);
- finit();
+ finit_task(tsk);
set_stopped_child_used_math(tsk);
return 0;
}
diff --git a/arch/x86/kernel/olpc.c b/arch/x86/kernel/olpc.c
index 7a13fac63a1..4006c522adc 100644
--- a/arch/x86/kernel/olpc.c
+++ b/arch/x86/kernel/olpc.c
@@ -203,7 +203,7 @@ static void __init platform_detect(void)
static void __init platform_detect(void)
{
/* stopgap until OFW support is added to the kernel */
- olpc_platform_info.boardrev = 0xc2;
+ olpc_platform_info.boardrev = olpc_board(0xc2);
}
#endif
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index e4c8fb60887..c6520a4e85d 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -268,6 +268,32 @@ enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
return __get_cpu_var(paravirt_lazy_mode);
}
+void arch_flush_lazy_mmu_mode(void)
+{
+ preempt_disable();
+
+ if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU) {
+ WARN_ON(preempt_count() == 1);
+ arch_leave_lazy_mmu_mode();
+ arch_enter_lazy_mmu_mode();
+ }
+
+ preempt_enable();
+}
+
+void arch_flush_lazy_cpu_mode(void)
+{
+ preempt_disable();
+
+ if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_CPU) {
+ WARN_ON(preempt_count() == 1);
+ arch_leave_lazy_cpu_mode();
+ arch_enter_lazy_cpu_mode();
+ }
+
+ preempt_enable();
+}
+
struct pv_info pv_info = {
.name = "bare hardware",
.paravirt_enabled = 0,
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index a546f55c77b..bd4da2af08a 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -104,9 +104,6 @@ void cpu_idle(void)
check_pgt_cache();
rmb();
- if (rcu_pending(cpu))
- rcu_check_callbacks(cpu, 0);
-
if (cpu_is_offline(cpu))
play_dead();
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 0a5df5f82fb..06ca07f6ad8 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -810,12 +810,16 @@ static void ptrace_bts_untrace(struct task_struct *child)
static void ptrace_bts_detach(struct task_struct *child)
{
- if (unlikely(child->bts)) {
- ds_release_bts(child->bts);
- child->bts = NULL;
-
- ptrace_bts_free_buffer(child);
- }
+ /*
+ * Ptrace_detach() races with ptrace_untrace() in case
+ * the child dies and is reaped by another thread.
+ *
+ * We only do the memory accounting at this point and
+ * leave the buffer deallocation and the bts tracer
+ * release to ptrace_bts_untrace() which will be called
+ * later on with tasklist_lock held.
+ */
+ release_locked_buffer(child->bts_buffer, child->bts_size);
}
#else
static inline void ptrace_bts_fork(struct task_struct *tsk) {}
@@ -1384,7 +1388,7 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
#ifdef CONFIG_X86_32
# define IS_IA32 1
#elif defined CONFIG_IA32_EMULATION
-# define IS_IA32 test_thread_flag(TIF_IA32)
+# define IS_IA32 is_compat_task()
#else
# define IS_IA32 0
#endif
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 2b46eb41643..4526b3a75ed 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -217,6 +217,14 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq"),
},
},
+ { /* Handle problems with rebooting on Dell XPS710 */
+ .callback = set_bios_reboot,
+ .ident = "Dell XPS710",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Dell XPS710"),
+ },
+ },
{ }
};
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index c461f6d6907..6a8811a6932 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -770,6 +770,9 @@ void __init setup_arch(char **cmdline_p)
finish_e820_parsing();
+ if (efi_enabled)
+ efi_init();
+
dmi_scan_machine();
dmi_check_system(bad_bios_dmi_table);
@@ -789,8 +792,6 @@ void __init setup_arch(char **cmdline_p)
insert_resource(&iomem_resource, &data_resource);
insert_resource(&iomem_resource, &bss_resource);
- if (efi_enabled)
- efi_init();
#ifdef CONFIG_X86_32
if (ppro_with_ram_bug()) {
diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index e6e695acd72..241ec3923f6 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -115,7 +115,7 @@ unsigned long __init calibrate_cpu(void)
static struct irqaction irq0 = {
.handler = timer_interrupt,
- .flags = IRQF_DISABLED | IRQF_IRQPOLL | IRQF_NOBALANCING,
+ .flags = IRQF_DISABLED | IRQF_IRQPOLL | IRQF_NOBALANCING | IRQF_TIMER,
.mask = CPU_MASK_NONE,
.name = "timer"
};
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 7932338d7cb..a9e7548e179 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -99,6 +99,12 @@ static inline void preempt_conditional_sti(struct pt_regs *regs)
local_irq_enable();
}
+static inline void conditional_cli(struct pt_regs *regs)
+{
+ if (regs->flags & X86_EFLAGS_IF)
+ local_irq_disable();
+}
+
static inline void preempt_conditional_cli(struct pt_regs *regs)
{
if (regs->flags & X86_EFLAGS_IF)
@@ -626,8 +632,10 @@ clear_dr7:
#ifdef CONFIG_X86_32
debug_vm86:
+ /* reenable preemption: handle_vm86_trap() might sleep */
+ dec_preempt_count();
handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code, 1);
- preempt_conditional_cli(regs);
+ conditional_cli(regs);
return;
#endif
diff --git a/arch/x86/kernel/vmiclock_32.c b/arch/x86/kernel/vmiclock_32.c
index c4c1f9e0940..e5b088fffa4 100644
--- a/arch/x86/kernel/vmiclock_32.c
+++ b/arch/x86/kernel/vmiclock_32.c
@@ -202,7 +202,7 @@ static irqreturn_t vmi_timer_interrupt(int irq, void *dev_id)
static struct irqaction vmi_clock_action = {
.name = "vmi-timer",
.handler = vmi_timer_interrupt,
- .flags = IRQF_DISABLED | IRQF_NOBALANCING,
+ .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TIMER,
.mask = CPU_MASK_ALL,
};
@@ -283,10 +283,13 @@ void __devinit vmi_time_ap_init(void)
#endif
/** vmi clocksource */
+static struct clocksource clocksource_vmi;
static cycle_t read_real_cycles(void)
{
- return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_REAL);
+ cycle_t ret = (cycle_t)vmi_timer_ops.get_cycle_counter(VMI_CYCLES_REAL);
+ return ret >= clocksource_vmi.cycle_last ?
+ ret : clocksource_vmi.cycle_last;
}
static struct clocksource clocksource_vmi = {