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authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-26 16:17:32 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-26 16:17:32 +0200
commit3cfef9524677a4ecb392d6fbffe6ebce6302f1d4 (patch)
tree88647d9dc50d634dee9cfeb7f354d620977a2f33 /arch
parent982653009b883ef1529089e3e6f1ae2fee41cbe2 (diff)
parent68cc3990a545dc0da221b4844dd8b9c06623a6c5 (diff)
downloadlinux-3cfef9524677a4ecb392d6fbffe6ebce6302f1d4.tar.bz2
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits) rtmutex: Add missing rcu_read_unlock() in debug_rt_mutex_print_deadlock() lockdep: Comment all warnings lib: atomic64: Change the type of local lock to raw_spinlock_t locking, lib/atomic64: Annotate atomic64_lock::lock as raw locking, x86, iommu: Annotate qi->q_lock as raw locking, x86, iommu: Annotate irq_2_ir_lock as raw locking, x86, iommu: Annotate iommu->register_lock as raw locking, dma, ipu: Annotate bank_lock as raw locking, ARM: Annotate low level hw locks as raw locking, drivers/dca: Annotate dca_lock as raw locking, powerpc: Annotate uic->lock as raw locking, x86: mce: Annotate cmci_discover_lock as raw locking, ACPI: Annotate c3_lock as raw locking, oprofile: Annotate oprofilefs lock as raw locking, video: Annotate vga console lock as raw locking, latencytop: Annotate latency_lock as raw locking, timer_stats: Annotate table_lock as raw locking, rwsem: Annotate inner lock as raw locking, semaphores: Annotate inner lock as raw locking, sched: Annotate thread_group_cputimer as raw ... Fix up conflicts in kernel/posix-cpu-timers.c manually: making cputimer->cputime a raw lock conflicted with the ABBA fix in commit bcd5cff7216f ("cputimer: Cure lock inversion").
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/common/gic.c26
-rw-r--r--arch/arm/include/asm/dma.h6
-rw-r--r--arch/arm/include/asm/mmu.h4
-rw-r--r--arch/arm/kernel/dma.c2
-rw-r--r--arch/arm/kernel/smp.c6
-rw-r--r--arch/arm/kernel/traps.c20
-rw-r--r--arch/arm/mach-footbridge/include/mach/hardware.h2
-rw-r--r--arch/arm/mach-footbridge/netwinder-hw.c14
-rw-r--r--arch/arm/mach-footbridge/netwinder-leds.c10
-rw-r--r--arch/arm/mach-integrator/core.c6
-rw-r--r--arch/arm/mach-integrator/pci_v3.c14
-rw-r--r--arch/arm/mach-ixp4xx/common-pci.c22
-rw-r--r--arch/arm/mach-shark/leds.c6
-rw-r--r--arch/arm/mm/cache-l2x0.c46
-rw-r--r--arch/arm/mm/context.c14
-rw-r--r--arch/arm/mm/copypage-v4mc.c6
-rw-r--r--arch/arm/mm/copypage-v6.c10
-rw-r--r--arch/arm/mm/copypage-xscale.c6
-rw-r--r--arch/powerpc/sysdev/uic.c24
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce_intel.c10
-rw-r--r--arch/x86/oprofile/nmi_int.c4
21 files changed, 129 insertions, 129 deletions
diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c
index 666b278e56d7..bdbb3f74f0fe 100644
--- a/arch/arm/common/gic.c
+++ b/arch/arm/common/gic.c
@@ -33,7 +33,7 @@
#include <asm/mach/irq.h>
#include <asm/hardware/gic.h>
-static DEFINE_SPINLOCK(irq_controller_lock);
+static DEFINE_RAW_SPINLOCK(irq_controller_lock);
/* Address of GIC 0 CPU interface */
void __iomem *gic_cpu_base_addr __read_mostly;
@@ -82,30 +82,30 @@ static void gic_mask_irq(struct irq_data *d)
{
u32 mask = 1 << (d->irq % 32);
- spin_lock(&irq_controller_lock);
+ raw_spin_lock(&irq_controller_lock);
writel_relaxed(mask, gic_dist_base(d) + GIC_DIST_ENABLE_CLEAR + (gic_irq(d) / 32) * 4);
if (gic_arch_extn.irq_mask)
gic_arch_extn.irq_mask(d);
- spin_unlock(&irq_controller_lock);
+ raw_spin_unlock(&irq_controller_lock);
}
static void gic_unmask_irq(struct irq_data *d)
{
u32 mask = 1 << (d->irq % 32);
- spin_lock(&irq_controller_lock);
+ raw_spin_lock(&irq_controller_lock);
if (gic_arch_extn.irq_unmask)
gic_arch_extn.irq_unmask(d);
writel_relaxed(mask, gic_dist_base(d) + GIC_DIST_ENABLE_SET + (gic_irq(d) / 32) * 4);
- spin_unlock(&irq_controller_lock);
+ raw_spin_unlock(&irq_controller_lock);
}
static void gic_eoi_irq(struct irq_data *d)
{
if (gic_arch_extn.irq_eoi) {
- spin_lock(&irq_controller_lock);
+ raw_spin_lock(&irq_controller_lock);
gic_arch_extn.irq_eoi(d);
- spin_unlock(&irq_controller_lock);
+ raw_spin_unlock(&irq_controller_lock);
}
writel_relaxed(gic_irq(d), gic_cpu_base(d) + GIC_CPU_EOI);
@@ -129,7 +129,7 @@ static int gic_set_type(struct irq_data *d, unsigned int type)
if (type != IRQ_TYPE_LEVEL_HIGH && type != IRQ_TYPE_EDGE_RISING)
return -EINVAL;
- spin_lock(&irq_controller_lock);
+ raw_spin_lock(&irq_controller_lock);
if (gic_arch_extn.irq_set_type)
gic_arch_extn.irq_set_type(d, type);
@@ -154,7 +154,7 @@ static int gic_set_type(struct irq_data *d, unsigned int type)
if (enabled)
writel_relaxed(enablemask, base + GIC_DIST_ENABLE_SET + enableoff);
- spin_unlock(&irq_controller_lock);
+ raw_spin_unlock(&irq_controller_lock);
return 0;
}
@@ -182,10 +182,10 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
mask = 0xff << shift;
bit = 1 << (cpu_logical_map(cpu) + shift);
- spin_lock(&irq_controller_lock);
+ raw_spin_lock(&irq_controller_lock);
val = readl_relaxed(reg) & ~mask;
writel_relaxed(val | bit, reg);
- spin_unlock(&irq_controller_lock);
+ raw_spin_unlock(&irq_controller_lock);
return IRQ_SET_MASK_OK;
}
@@ -215,9 +215,9 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
chained_irq_enter(chip, desc);
- spin_lock(&irq_controller_lock);
+ raw_spin_lock(&irq_controller_lock);
status = readl_relaxed(chip_data->cpu_base + GIC_CPU_INTACK);
- spin_unlock(&irq_controller_lock);
+ raw_spin_unlock(&irq_controller_lock);
gic_irq = (status & 0x3ff);
if (gic_irq == 1023)
diff --git a/arch/arm/include/asm/dma.h b/arch/arm/include/asm/dma.h
index 628670e9d7c9..69a5b0b6455c 100644
--- a/arch/arm/include/asm/dma.h
+++ b/arch/arm/include/asm/dma.h
@@ -34,18 +34,18 @@
#define DMA_MODE_CASCADE 0xc0
#define DMA_AUTOINIT 0x10
-extern spinlock_t dma_spin_lock;
+extern raw_spinlock_t dma_spin_lock;
static inline unsigned long claim_dma_lock(void)
{
unsigned long flags;
- spin_lock_irqsave(&dma_spin_lock, flags);
+ raw_spin_lock_irqsave(&dma_spin_lock, flags);
return flags;
}
static inline void release_dma_lock(unsigned long flags)
{
- spin_unlock_irqrestore(&dma_spin_lock, flags);
+ raw_spin_unlock_irqrestore(&dma_spin_lock, flags);
}
/* Clear the 'DMA Pointer Flip Flop'.
diff --git a/arch/arm/include/asm/mmu.h b/arch/arm/include/asm/mmu.h
index b4ffe9d5b526..14965658a923 100644
--- a/arch/arm/include/asm/mmu.h
+++ b/arch/arm/include/asm/mmu.h
@@ -6,7 +6,7 @@
typedef struct {
#ifdef CONFIG_CPU_HAS_ASID
unsigned int id;
- spinlock_t id_lock;
+ raw_spinlock_t id_lock;
#endif
unsigned int kvm_seq;
} mm_context_t;
@@ -16,7 +16,7 @@ typedef struct {
/* init_mm.context.id_lock should be initialized. */
#define INIT_MM_CONTEXT(name) \
- .context.id_lock = __SPIN_LOCK_UNLOCKED(name.context.id_lock),
+ .context.id_lock = __RAW_SPIN_LOCK_UNLOCKED(name.context.id_lock),
#else
#define ASID(mm) (0)
#endif
diff --git a/arch/arm/kernel/dma.c b/arch/arm/kernel/dma.c
index 2c4a185f92cd..7b829d9663b1 100644
--- a/arch/arm/kernel/dma.c
+++ b/arch/arm/kernel/dma.c
@@ -23,7 +23,7 @@
#include <asm/mach/dma.h>
-DEFINE_SPINLOCK(dma_spin_lock);
+DEFINE_RAW_SPINLOCK(dma_spin_lock);
EXPORT_SYMBOL(dma_spin_lock);
static dma_t *dma_chan[MAX_DMA_CHANNELS];
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 854ce33715f4..94f34a6c8610 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -566,7 +566,7 @@ static void percpu_timer_stop(void)
}
#endif
-static DEFINE_SPINLOCK(stop_lock);
+static DEFINE_RAW_SPINLOCK(stop_lock);
/*
* ipi_cpu_stop - handle IPI from smp_send_stop()
@@ -575,10 +575,10 @@ static void ipi_cpu_stop(unsigned int cpu)
{
if (system_state == SYSTEM_BOOTING ||
system_state == SYSTEM_RUNNING) {
- spin_lock(&stop_lock);
+ raw_spin_lock(&stop_lock);
printk(KERN_CRIT "CPU%u: stopping\n", cpu);
dump_stack();
- spin_unlock(&stop_lock);
+ raw_spin_unlock(&stop_lock);
}
set_cpu_online(cpu, false);
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 7f5b99eb2c50..99a572702509 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -257,7 +257,7 @@ static int __die(const char *str, int err, struct thread_info *thread, struct pt
return ret;
}
-static DEFINE_SPINLOCK(die_lock);
+static DEFINE_RAW_SPINLOCK(die_lock);
/*
* This function is protected against re-entrancy.
@@ -269,7 +269,7 @@ void die(const char *str, struct pt_regs *regs, int err)
oops_enter();
- spin_lock_irq(&die_lock);
+ raw_spin_lock_irq(&die_lock);
console_verbose();
bust_spinlocks(1);
if (!user_mode(regs))
@@ -281,7 +281,7 @@ void die(const char *str, struct pt_regs *regs, int err)
bust_spinlocks(0);
add_taint(TAINT_DIE);
- spin_unlock_irq(&die_lock);
+ raw_spin_unlock_irq(&die_lock);
oops_exit();
if (in_interrupt())
@@ -324,24 +324,24 @@ int is_valid_bugaddr(unsigned long pc)
#endif
static LIST_HEAD(undef_hook);
-static DEFINE_SPINLOCK(undef_lock);
+static DEFINE_RAW_SPINLOCK(undef_lock);
void register_undef_hook(struct undef_hook *hook)
{
unsigned long flags;
- spin_lock_irqsave(&undef_lock, flags);
+ raw_spin_lock_irqsave(&undef_lock, flags);
list_add(&hook->node, &undef_hook);
- spin_unlock_irqrestore(&undef_lock, flags);
+ raw_spin_unlock_irqrestore(&undef_lock, flags);
}
void unregister_undef_hook(struct undef_hook *hook)
{
unsigned long flags;
- spin_lock_irqsave(&undef_lock, flags);
+ raw_spin_lock_irqsave(&undef_lock, flags);
list_del(&hook->node);
- spin_unlock_irqrestore(&undef_lock, flags);
+ raw_spin_unlock_irqrestore(&undef_lock, flags);
}
static int call_undef_hook(struct pt_regs *regs, unsigned int instr)
@@ -350,12 +350,12 @@ static int call_undef_hook(struct pt_regs *regs, unsigned int instr)
unsigned long flags;
int (*fn)(struct pt_regs *regs, unsigned int instr) = NULL;
- spin_lock_irqsave(&undef_lock, flags);
+ raw_spin_lock_irqsave(&undef_lock, flags);
list_for_each_entry(hook, &undef_hook, node)
if ((instr & hook->instr_mask) == hook->instr_val &&
(regs->ARM_cpsr & hook->cpsr_mask) == hook->cpsr_val)
fn = hook->fn;
- spin_unlock_irqrestore(&undef_lock, flags);
+ raw_spin_unlock_irqrestore(&undef_lock, flags);
return fn ? fn(regs, instr) : 1;
}
diff --git a/arch/arm/mach-footbridge/include/mach/hardware.h b/arch/arm/mach-footbridge/include/mach/hardware.h
index 15d54981674c..e3d6ccac2162 100644
--- a/arch/arm/mach-footbridge/include/mach/hardware.h
+++ b/arch/arm/mach-footbridge/include/mach/hardware.h
@@ -93,7 +93,7 @@
#define CPLD_FLASH_WR_ENABLE 1
#ifndef __ASSEMBLY__
-extern spinlock_t nw_gpio_lock;
+extern raw_spinlock_t nw_gpio_lock;
extern void nw_gpio_modify_op(unsigned int mask, unsigned int set);
extern void nw_gpio_modify_io(unsigned int mask, unsigned int in);
extern unsigned int nw_gpio_read(void);
diff --git a/arch/arm/mach-footbridge/netwinder-hw.c b/arch/arm/mach-footbridge/netwinder-hw.c
index 4cbc2e65ce3a..0f7aeff486c9 100644
--- a/arch/arm/mach-footbridge/netwinder-hw.c
+++ b/arch/arm/mach-footbridge/netwinder-hw.c
@@ -68,7 +68,7 @@ static inline void wb977_ww(int reg, int val)
/*
* This is a lock for accessing ports GP1_IO_BASE and GP2_IO_BASE
*/
-DEFINE_SPINLOCK(nw_gpio_lock);
+DEFINE_RAW_SPINLOCK(nw_gpio_lock);
EXPORT_SYMBOL(nw_gpio_lock);
static unsigned int current_gpio_op;
@@ -327,9 +327,9 @@ static inline void wb977_init_gpio(void)
/*
* Set Group1/Group2 outputs
*/
- spin_lock_irqsave(&nw_gpio_lock, flags);
+ raw_spin_lock_irqsave(&nw_gpio_lock, flags);
nw_gpio_modify_op(-1, GPIO_RED_LED | GPIO_FAN);
- spin_unlock_irqrestore(&nw_gpio_lock, flags);
+ raw_spin_unlock_irqrestore(&nw_gpio_lock, flags);
}
/*
@@ -390,9 +390,9 @@ static void __init cpld_init(void)
{
unsigned long flags;
- spin_lock_irqsave(&nw_gpio_lock, flags);
+ raw_spin_lock_irqsave(&nw_gpio_lock, flags);
nw_cpld_modify(-1, CPLD_UNMUTE | CPLD_7111_DISABLE);
- spin_unlock_irqrestore(&nw_gpio_lock, flags);
+ raw_spin_unlock_irqrestore(&nw_gpio_lock, flags);
}
static unsigned char rwa_unlock[] __initdata =
@@ -616,9 +616,9 @@ static int __init nw_hw_init(void)
cpld_init();
rwa010_init();
- spin_lock_irqsave(&nw_gpio_lock, flags);
+ raw_spin_lock_irqsave(&nw_gpio_lock, flags);
nw_gpio_modify_op(GPIO_RED_LED|GPIO_GREEN_LED, DEFAULT_LEDS);
- spin_unlock_irqrestore(&nw_gpio_lock, flags);
+ raw_spin_unlock_irqrestore(&nw_gpio_lock, flags);
}
return 0;
}
diff --git a/arch/arm/mach-footbridge/netwinder-leds.c b/arch/arm/mach-footbridge/netwinder-leds.c
index 00269fe0be8a..e57102e871fc 100644
--- a/arch/arm/mach-footbridge/netwinder-leds.c
+++ b/arch/arm/mach-footbridge/netwinder-leds.c
@@ -31,13 +31,13 @@
static char led_state;
static char hw_led_state;
-static DEFINE_SPINLOCK(leds_lock);
+static DEFINE_RAW_SPINLOCK(leds_lock);
static void netwinder_leds_event(led_event_t evt)
{
unsigned long flags;
- spin_lock_irqsave(&leds_lock, flags);
+ raw_spin_lock_irqsave(&leds_lock, flags);
switch (evt) {
case led_start:
@@ -117,12 +117,12 @@ static void netwinder_leds_event(led_event_t evt)
break;
}
- spin_unlock_irqrestore(&leds_lock, flags);
+ raw_spin_unlock_irqrestore(&leds_lock, flags);
if (led_state & LED_STATE_ENABLED) {
- spin_lock_irqsave(&nw_gpio_lock, flags);
+ raw_spin_lock_irqsave(&nw_gpio_lock, flags);
nw_gpio_modify_op(GPIO_RED_LED | GPIO_GREEN_LED, hw_led_state);
- spin_unlock_irqrestore(&nw_gpio_lock, flags);
+ raw_spin_unlock_irqrestore(&nw_gpio_lock, flags);
}
}
diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c
index 82ebc8d772d3..4b38e13667ac 100644
--- a/arch/arm/mach-integrator/core.c
+++ b/arch/arm/mach-integrator/core.c
@@ -209,7 +209,7 @@ static struct amba_pl010_data integrator_uart_data = {
#define CM_CTRL IO_ADDRESS(INTEGRATOR_HDR_CTRL)
-static DEFINE_SPINLOCK(cm_lock);
+static DEFINE_RAW_SPINLOCK(cm_lock);
/**
* cm_control - update the CM_CTRL register.
@@ -221,10 +221,10 @@ void cm_control(u32 mask, u32 set)
unsigned long flags;
u32 val;
- spin_lock_irqsave(&cm_lock, flags);
+ raw_spin_lock_irqsave(&cm_lock, flags);
val = readl(CM_CTRL) & ~mask;
writel(val | set, CM_CTRL);
- spin_unlock_irqrestore(&cm_lock, flags);
+ raw_spin_unlock_irqrestore(&cm_lock, flags);
}
EXPORT_SYMBOL(cm_control);
diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index 11b86e5b71c2..b4d8f8b8a085 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -163,7 +163,7 @@
* 7:2 register number
*
*/
-static DEFINE_SPINLOCK(v3_lock);
+static DEFINE_RAW_SPINLOCK(v3_lock);
#define PCI_BUS_NONMEM_START 0x00000000
#define PCI_BUS_NONMEM_SIZE SZ_256M
@@ -284,7 +284,7 @@ static int v3_read_config(struct pci_bus *bus, unsigned int devfn, int where,
unsigned long flags;
u32 v;
- spin_lock_irqsave(&v3_lock, flags);
+ raw_spin_lock_irqsave(&v3_lock, flags);
addr = v3_open_config_window(bus, devfn, where);
switch (size) {
@@ -302,7 +302,7 @@ static int v3_read_config(struct pci_bus *bus, unsigned int devfn, int where,
}
v3_close_config_window();
- spin_unlock_irqrestore(&v3_lock, flags);
+ raw_spin_unlock_irqrestore(&v3_lock, flags);
*val = v;
return PCIBIOS_SUCCESSFUL;
@@ -314,7 +314,7 @@ static int v3_write_config(struct pci_bus *bus, unsigned int devfn, int where,
unsigned long addr;
unsigned long flags;
- spin_lock_irqsave(&v3_lock, flags);
+ raw_spin_lock_irqsave(&v3_lock, flags);
addr = v3_open_config_window(bus, devfn, where);
switch (size) {
@@ -335,7 +335,7 @@ static int v3_write_config(struct pci_bus *bus, unsigned int devfn, int where,
}
v3_close_config_window();
- spin_unlock_irqrestore(&v3_lock, flags);
+ raw_spin_unlock_irqrestore(&v3_lock, flags);
return PCIBIOS_SUCCESSFUL;
}
@@ -513,7 +513,7 @@ void __init pci_v3_preinit(void)
hook_fault_code(8, v3_pci_fault, SIGBUS, 0, "external abort on non-linefetch");
hook_fault_code(10, v3_pci_fault, SIGBUS, 0, "external abort on non-linefetch");
- spin_lock_irqsave(&v3_lock, flags);
+ raw_spin_lock_irqsave(&v3_lock, flags);
/*
* Unlock V3 registers, but only if they were previously locked.
@@ -586,7 +586,7 @@ void __init pci_v3_preinit(void)
printk(KERN_ERR "PCI: unable to grab PCI error "
"interrupt: %d\n", ret);
- spin_unlock_irqrestore(&v3_lock, flags);
+ raw_spin_unlock_irqrestore(&v3_lock, flags);
}
void __init pci_v3_postinit(void)
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index 85245e48099c..f72a3a893c47 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -54,7 +54,7 @@ unsigned long ixp4xx_pci_reg_base = 0;
* these transactions are atomic or we will end up
* with corrupt data on the bus or in a driver.
*/
-static DEFINE_SPINLOCK(ixp4xx_pci_lock);
+static DEFINE_RAW_SPINLOCK(ixp4xx_pci_lock);
/*
* Read from PCI config space
@@ -62,10 +62,10 @@ static DEFINE_SPINLOCK(ixp4xx_pci_lock);
static void crp_read(u32 ad_cbe, u32 *data)
{
unsigned long flags;
- spin_lock_irqsave(&ixp4xx_pci_lock, flags);
+ raw_spin_lock_irqsave(&ixp4xx_pci_lock, flags);
*PCI_CRP_AD_CBE = ad_cbe;
*data = *PCI_CRP_RDATA;
- spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
+ raw_spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
}
/*
@@ -74,10 +74,10 @@ static void crp_read(u32 ad_cbe, u32 *data)
static void crp_write(u32 ad_cbe, u32 data)
{
unsigned long flags;
- spin_lock_irqsave(&ixp4xx_pci_lock, flags);
+ raw_spin_lock_irqsave(&ixp4xx_pci_lock, flags);
*PCI_CRP_AD_CBE = CRP_AD_CBE_WRITE | ad_cbe;
*PCI_CRP_WDATA = data;
- spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
+ raw_spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
}
static inline int check_master_abort(void)
@@ -101,7 +101,7 @@ int ixp4xx_pci_read_errata(u32 addr, u32 cmd, u32* data)
int retval = 0;
int i;
- spin_lock_irqsave(&ixp4xx_pci_lock, flags);
+ raw_spin_lock_irqsave(&ixp4xx_pci_lock, flags);
*PCI_NP_AD = addr;
@@ -118,7 +118,7 @@ int ixp4xx_pci_read_errata(u32 addr, u32 cmd, u32* data)
if(check_master_abort())
retval = 1;
- spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
+ raw_spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
return retval;
}
@@ -127,7 +127,7 @@ int ixp4xx_pci_read_no_errata(u32 addr, u32 cmd, u32* data)
unsigned long flags;
int retval = 0;
- spin_lock_irqsave(&ixp4xx_pci_lock, flags);
+ raw_spin_lock_irqsave(&ixp4xx_pci_lock, flags);
*PCI_NP_AD = addr;
@@ -140,7 +140,7 @@ int ixp4xx_pci_read_no_errata(u32 addr, u32 cmd, u32* data)
if(check_master_abort())
retval = 1;
- spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
+ raw_spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
return retval;
}
@@ -149,7 +149,7 @@ int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data)
unsigned long flags;
int retval = 0;
- spin_lock_irqsave(&ixp4xx_pci_lock, flags);
+ raw_spin_lock_irqsave(&ixp4xx_pci_lock, flags);
*PCI_NP_AD = addr;
@@ -162,7 +162,7 @@ int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data)
if(check_master_abort())
retval = 1;
- spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
+ raw_spin_unlock_irqrestore(&ixp4xx_pci_lock, flags);
return retval;
}
diff --git a/arch/arm/mach-shark/leds.c b/arch/arm/mach-shark/leds.c
index c9e32de4adf9..ccd49189bbd0 100644
--- a/arch/arm/mach-shark/leds.c
+++ b/arch/arm/mach-shark/leds.c
@@ -36,7 +36,7 @@ static char led_state;
static short hw_led_state;
static short saved_state;
-static DEFINE_SPINLOCK(leds_lock);
+static DEFINE_RAW_SPINLOCK(leds_lock);
short sequoia_read(int addr) {
outw(addr,0x24);
@@ -52,7 +52,7 @@ static void sequoia_leds_event(led_event_t evt)
{
unsigned long flags;
- spin_lock_irqsave(&leds_lock, flags);
+ raw_spin_lock_irqsave(&leds_lock, flags);
hw_led_state = sequoia_read(0x09);
@@ -144,7 +144,7 @@ static void sequoia_leds_event(led_event_t evt)
if (led_state & LED_STATE_ENABLED)
sequoia_write(hw_led_state,0x09);
- spin_unlock_irqrestore(&leds_lock, flags);
+ raw_spin_unlock_irqrestore(&leds_lock, flags);
}
static int __init leds_init(void)
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index 3f9b9980478e..8ac9e9f84790 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -29,7 +29,7 @@
#define CACHE_LINE_SIZE 32
static void __iomem *l2x0_base;
-static DEFINE_SPINLOCK(l2x0_lock);
+static DEFINE_RAW_SPINLOCK(l2x0_lock);
static uint32_t l2x0_way_mask; /* Bitmask of active ways */
static uint32_t l2x0_size;
@@ -126,9 +126,9 @@ static void l2x0_cache_sync(void)
{
unsigned long flags;
- spin_lock_irqsave(&l2x0_lock, flags);
+ raw_spin_lock_irqsave(&l2x0_lock, flags);
cache_sync();
- spin_unlock_irqrestore(&l2x0_lock, flags);
+ raw_spin_unlock_irqrestore(&l2x0_lock, flags);
}
static void __l2x0_flush_all(void)
@@ -145,9 +145,9 @@ static void l2x0_flush_all(void)
unsigned long flags;
/* clean all ways */
- spin_lock_irqsave(&l2x0_lock, flags);
+ raw_spin_lock_irqsave(&l2x0_lock, flags);
__l2x0_flush_all();
- spin_unlock_irqrestore(&l2x0_lock, flags);
+ raw_spin_unlock_irqrestore(&l2x0_lock, flags);
}
static void l2x0_clean_all(void)
@@ -155,11 +155,11 @@ static void l2x0_clean_all(void)
unsigned long flags;
/* clean all ways */
- spin_lock_irqsave(&l2x0_lock, flags);
+ raw_spin_lock_irqsave(&l2x0_lock, flags);
writel_relaxed(l2x0_way_mask, l2x0_base + L2X0_CLEAN_WAY);
cache_wait_way(l2x0_base + L2X0_CLEAN_WAY, l2x0_way_mask);
cache_sync();
- spin_unlock_irqrestore(&l2x0_lock, flags);
+ raw_spin_unlock_irqrestore(&l2x0_lock, flags);
}
static void l2x0_inv_all(void)
@@ -167,13 +167,13 @@ static void l2x0_inv_all(void)
unsigned long flags;
/* invalidate all ways */
- spin_lock_irqsave(&l2x0_lock, flags);
+ raw_spin_lock_irqsave(&l2x0_lock, flags);
/* Invalidating when L2 is enabled is a nono */
BUG_ON(readl(l2x0_base + L2X0_CTRL) & 1);
writel_relaxed(l2x0_way_mask, l2x0_base + L2X0_INV_WAY);
cache_wait_way(l2x0_base + L2X0_INV_WAY, l2x0_way_mask);
cache_sync();
- spin_unlock_irqrestore(&l2x0_lock, flags);
+ raw_spin_unlock_irqrestore(&l2x0_lock, flags);
}
static void l2x0_inv_range(unsigned long start, unsigned long end)
@@ -181,7 +181,7 @@ static void l2x0_inv_range(unsigned long start, unsigned long end)
void __iomem *base = l2x0_base;
unsigned long flags;
- spin_lock_irqsave(&l2x0_lock, flags);
+ raw_spin_lock_irqsave(&l2x0_lock, flags);
if (start & (CACHE_LINE_SIZE - 1)) {
start &= ~(CACHE_LINE_SIZE - 1);
debug_writel(0x03);
@@ -206,13 +206,13 @@ static void l2x0_inv_range(unsigned long start, unsigned long end)
}
if (blk_end < end) {
- spin_unlock_irqrestore(&l2x0_lock, flags);
- spin_lock_irqsave(&l2x0_lock, flags);
+ raw_spin_unlock_irqrestore(&l2x0_lock, flags);
+ raw_spin_lock_irqsave(&l2x0_lock, flags);
}
}
cache_wait(base + L2X0_INV_LINE_PA, 1);
cache_sync();
- spin_unlock_irqrestore(&l2x0_lock, flags);
+ raw_spin_unlock_irqrestore(&l2x0_lock, flags);
}
static void l2x0_clean_range(unsigned long start, unsigned long end)
@@ -225,7 +225,7 @@ static void l2x0_clean_range(unsigned long start, unsigned long end)
return;
}
- spin_lock_irqsave(&l2x0_lock, flags);
+ raw_spin_lock_irqsave(&l2x0_lock, flags);
start &= ~(CACHE_LINE_SIZE - 1);
while (start < end) {
unsigned long blk_end = start + min(end - start, 4096UL);
@@ -236,13 +236,13 @@ static void l2x0_clean_range(unsigned long start, unsigned long end)
}
if (blk_end < end) {
- spin_unlock_irqrestore(&l2x0_lock, flags);
- spin_lock_irqsave(&l2x0_lock, flags);
+ raw_spin_unlock_irqrestore(&l2x0_lock, flags);
+ raw_spin_lock_irqsave(&l2x0_lock, flags);
}
}
cache_wait(base + L2X0_CLEAN_LINE_PA, 1);
cache_sync();
- spin_unlock_irqrestore(&l2x0_lock, flags);
+ raw_spin_unlock_irqrestore(&l2x0_lock, flags);
}
static void l2x0_flush_range(unsigned long start, unsigned long end)
@@ -255,7 +255,7 @@ static void l2x0_flush_range(unsigned long start, unsigned long end)
return;
}
- spin_lock_irqsave(&l2x0_lock, flags);
+ raw_spin_lock_irqsave(&l2x0_lock, flags);
start &= ~(CACHE_LINE_SIZE - 1);
while (start < end) {
unsigned long blk_end = start + min(end - start, 4096UL);
@@ -268,24 +268,24 @@ static void l2x0_flush_range(unsigned long start, unsigned long end)
debug_writel(0x00);
if (blk_end < end) {
- spin_unlock_irqrestore(&l2x0_lock, flags);
- spin_lock_irqsave(&l2x0_lock, flags);
+ raw_spin_unlock_irqrestore(&l2x0_lock, flags);
+ raw_spin_lock_irqsave(&l2x0_lock, flags);
}
}
cache_wait(base + L2X0_CLEAN_INV_LINE_PA, 1);
cache_sync();
- spin_unlock_irqrestore(&l2x0_lock, flags);
+ raw_spin_unlock_irqrestore(&l2x0_lock, flags);
}
static void l2x0_disable(void)
{
unsigned long flags;
- spin_lock_irqsave(&l2x0_lock, flags);
+ raw_spin_lock_irqsave(&l2x0_lock, flags);
__l2x0_flush_all();
writel_relaxed(0, l2x0_base + L2X0_CTRL);
dsb();
- spin_unlock_irqrestore(&l2x0_lock, flags);
+ raw_spin_unlock_irqrestore(&l2x0_lock, flags);
}
static void l2x0_unlock(__u32 cache_id)
diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c
index b0ee9ba3cfab..93aac068da94 100644
--- a/arch/arm/mm/context.c
+++ b/arch/arm/mm/context.c
@@ -16,7 +16,7 @@
#include <asm/mmu_context.h>
#include <asm/tlbflush.h>
-static DEFINE_SPINLOCK(cpu_asid_lock);
+static DEFINE_RAW_SPINLOCK(cpu_asid_lock);
unsigned int cpu_last_asid = ASID_FIRST_VERSION;
#ifdef CONFIG_SMP
DEFINE_PER_CPU(struct mm_struct *, current_mm);
@@ -31,7 +31,7 @@ DEFINE_PER_CPU(struct mm_struct *, current_mm);
void __init_new_context(struct task_struct *tsk, struct mm_struct *mm)
{
mm->context.id = 0;
- spin_lock_init(&mm->context.id_lock);
+ raw_spin_lock_init(&mm->context.id_lock);
}
static void flush_context(void)
@@ -58,7 +58,7 @@ static void set_mm_context(struct mm_struct *mm, unsigned int asid)
* the broadcast. This function is also called via IPI so the
* mm->context.id_lock has to be IRQ-safe.
*/
- spin_lock_irqsave(&mm->context.id_lock, flags);
+ raw_spin_lock_irqsave(&mm->context.id_lock, flags);
if (likely((mm->context.id ^ cpu_last_asid) >> ASID_BITS)) {
/*
* Old version of ASID found. Set the new one and
@@ -67,7 +67,7 @@ static void set_mm_context(struct mm_struct *mm, unsigned int asid)
mm->context.id = asid;
cpumask_clear(mm_cpumask(mm));
}
- spin_unlock_irqrestore(&mm->context.id_lock, flags);
+ raw_spin_unlock_irqrestore(&mm->context.id_lock, flags);
/*
* Set the mm_cpumask(mm) bit for the current CPU.
@@ -117,7 +117,7 @@ void __new_context(struct mm_struct *mm)
{
unsigned int asid;
- spin_lock(&cpu_asid_lock);
+ raw_spin_lock(&cpu_asid_lock);
#ifdef CONFIG_SMP
/*
* Check the ASID again, in case the change was broadcast from
@@ -125,7 +125,7 @@ void __new_context(struct mm_struct *mm)
*/
if (unlikely(((mm->context.id ^ cpu_last_asid) >> ASID_BITS) == 0)) {
cpumask_set_cpu(smp_processor_id(), mm_cpumask(mm));
- spin_unlock(&cpu_asid_lock);
+ raw_spin_unlock(&cpu_asid_lock);
return;
}
#endif
@@ -153,5 +153,5 @@ void __new_context(struct mm_struct *mm)
}
set_mm_context(mm, asid);
- spin_unlock(&cpu_asid_lock);
+ raw_spin_unlock(&cpu_asid_lock);
}
diff --git a/arch/arm/mm/copypage-v4mc.c b/arch/arm/mm/copypage-v4mc.c
index b8061519ce77..7d0a8c230342 100644
--- a/arch/arm/mm/copypage-v4mc.c
+++ b/arch/arm/mm/copypage-v4mc.c
@@ -30,7 +30,7 @@
#define minicache_pgprot __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | \
L_PTE_MT_MINICACHE)
-static DEFINE_SPINLOCK(minicache_lock);
+static DEFINE_RAW_SPINLOCK(minicache_lock);
/*
* ARMv4 mini-dcache optimised copy_user_highpage
@@ -76,14 +76,14 @@ void v4_mc_copy_user_highpage(struct page *to, struct page *from,
if (!test_and_set_bit(PG_dcache_clean, &from->flags))
__flush_dcache_page(page_mapping(from), from);
- spin_lock(&minicache_lock);
+ raw_spin_lock(&minicache_lock);
set_pte_ext(TOP_PTE(0xffff8000), pfn_pte(page_to_pfn(from), minicache_pgprot), 0);
flush_tlb_kernel_page(0xffff8000);
mc_copy_user_page((void *)0xffff8000, kto);
- spin_unlock(&minicache_lock);
+ raw_spin_unlock(&minicache_lock);
kunmap_atomic(kto, KM_USER1);
}
diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c
index 63cca0097130..3d9a1552cef6 100644
--- a/arch/arm/mm/copypage-v6.c
+++ b/arch/arm/mm/copypage-v6.c
@@ -27,7 +27,7 @@
#define from_address (0xffff8000)
#define to_address (0xffffc000)
-static DEFINE_SPINLOCK(v6_lock);
+static DEFINE_RAW_SPINLOCK(v6_lock);
/*
* Copy the user page. No aliasing to deal with so we can just
@@ -88,7 +88,7 @@ static void v6_copy_user_highpage_aliasing(struct page *to,
* Now copy the page using the same cache colour as the
* pages ultimate destination.
*/
- spin_lock(&v6_lock);
+ raw_spin_lock(&v6_lock);
set_pte_ext(TOP_PTE(from_address) + offset, pfn_pte(page_to_pfn(from), PAGE_KERNEL), 0);
set_pte_ext(TOP_PTE(to_address) + offset, pfn_pte(page_to_pfn(to), PAGE_KERNEL), 0);
@@ -101,7 +101,7 @@ static void v6_copy_user_highpage_aliasing(struct page *to,
copy_page((void *)kto, (void *)kfrom);
- spin_unlock(&v6_lock);
+ raw_spin_unlock(&v6_lock);
}
/*
@@ -121,13 +121,13 @@ static void v6_clear_user_highpage_aliasing(struct page *page, unsigned long vad
* Now clear the page using the same cache colour as
* the pages ultimate destination.
*/
- spin_lock(&v6_lock);
+ raw_spin_lock(&v6_lock);
set_pte_ext(TOP_PTE(to_address) + offset, pfn_pte(page_to_pfn(page), PAGE_KERNEL), 0);
flush_tlb_kernel_page(to);
clear_page((void *)to);
- spin_unlock(&v6_lock);
+ raw_spin_unlock(&v6_lock);
}
struct cpu_user_fns v6_user_fns __initdata = {
diff --git a/arch/arm/mm/copypage-xscale.c b/arch/arm/mm/copypage-xscale.c
index 649bbcd325bf..610c24ced310 100644
--- a/arch/arm/mm/copypage-xscale.c
+++ b/arch/arm/mm/copypage-xscale.c
@@ -32,7 +32,7 @@
#define minicache_pgprot __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | \
L_PTE_MT_MINICACHE)
-static DEFINE_SPINLOCK(minicache_lock);
+static DEFINE_RAW_SPINLOCK(minicache_lock);
/*
* XScale mini-dcache optimised copy_user_highpage
@@ -98,14 +98,14 @@ void xscale_mc_copy_user_highpage(struct page *to, struct page *from,
if (!test_and_set_bit(PG_dcache_clean, &from->flags))
__flush_dcache_page(page_mapping(from), from);
- spin_lock(&minicache_lock);
+ raw_spin_lock(&minicache_lock);
set_pte_ext(TOP_PTE(COPYPAGE_MINICACHE), pfn_pte(page_to_pfn(from), minicache_pgprot), 0);
flush_tlb_kernel_page(COPYPAGE_MINICACHE);
mc_copy_user_page((void *)COPYPAGE_MINICACHE, kto);
- spin_unlock(&minicache_lock);
+ raw_spin_unlock(&minicache_lock);
kunmap_atomic(kto, KM_USER1);
}
diff --git a/arch/powerpc/sysdev/uic.c b/arch/powerpc/sysdev/uic.c
index 984cd2029158..3330feca7502 100644
--- a/arch/powerpc/sysdev/uic.c
+++ b/arch/powerpc/sysdev/uic.c
@@ -47,7 +47,7 @@ struct uic {
int index;
int dcrbase;
- spinlock_t lock;
+ raw_spinlock_t lock;
/* The remapper for this UIC */
struct irq_host *irqhost;
@@ -61,14 +61,14 @@ static void uic_unmask_irq(struct irq_data *d)
u32 er, sr;
sr = 1 << (31-src);
- spin_lock_irqsave(&uic->lock, flags);
+ raw_spin_lock_irqsave(&uic->lock, flags);
/* ack level-triggered interrupts here */
if (irqd_is_level_type(d))
mtdcr(uic->dcrbase + UIC_SR, sr);
er = mfdcr(uic->dcrbase + UIC_ER);
er |= sr;
mtdcr(uic->dcrbase + UIC_ER, er);
- spin_unlock_irqrestore(&uic->lock, flags);
+ raw_spin_unlock_irqrestore(&uic->lock, flags);
}
static void uic_mask_irq(struct irq_data *d)
@@ -78,11 +78,11 @@ static void uic_mask_irq(struct irq_data *d)
unsigned long flags;
u32 er;
- spin_lock_irqsave(&uic->lock, flags);
+ raw_spin_lock_irqsave(&uic->lock, flags);
er = mfdcr(uic->dcrbase + UIC_ER);
er &= ~(1 << (31 - src));
mtdcr(uic->dcrbase + UIC_ER, er);
- spin_unlock_irqrestore(&uic->lock, flags);
+ raw_spin_unlock_irqrestore(&uic->lock, flags);
}
static void uic_ack_irq(struct irq_data *d)
@@ -91,9 +91,9 @@ static void uic_ack_irq(struct irq_data *d)
unsigned int src = irqd_to_hwirq(d);
unsigned long flags;
- spin_lock_irqsave(&uic->lock, flags);
+ raw_spin_lock_irqsave(&uic->lock, flags);
mtdcr(uic->dcrbase + UIC_SR, 1 << (31-src));
- spin_unlock_irqrestore(&uic->lock, flags);
+ raw_spin_unlock_irqrestore(&uic->lock, flags);
}
static void uic_mask_ack_irq(struct irq_data *d)
@@ -104,7 +104,7 @@ static void uic_mask_ack_irq(struct irq_data *d)
u32 er, sr;
sr = 1 << (31-src);
- spin_lock_irqsave(&uic->lock, flags);
+ raw_spin_lock_irqsave(&uic->lock, flags);
er = mfdcr(uic->dcrbase + UIC_ER);
er &= ~sr;
mtdcr(uic->dcrbase + UIC_ER, er);
@@ -118,7 +118,7 @@ static void uic_mask_ack_irq(struct irq_data *d)
*/
if (!irqd_is_level_type(d))
mtdcr(uic->dcrbase + UIC_SR, sr);
- spin_unlock_irqrestore(&uic->lock, flags);
+ raw_spin_unlock_irqrestore(&uic->lock, flags);
}
static int uic_set_irq_type(struct irq_data *d, unsigned int flow_type)
@@ -152,7 +152,7 @@ static int uic_set_irq_type(struct irq_data *d, unsigned int flow_type)
mask = ~(1 << (31 - src));
- spin_lock_irqsave(&uic->lock, flags);
+ raw_spin_lock_irqsave(&uic->lock, flags);
tr = mfdcr(uic->dcrbase + UIC_TR);
pr = mfdcr(uic->dcrbase + UIC_PR);
tr = (tr & mask) | (trigger << (31-src));
@@ -161,7 +161,7 @@ static int uic_set_irq_type(struct irq_data *d, unsigned int flow_type)
mtdcr(uic->dcrbase + UIC_PR, pr);
mtdcr(uic->dcrbase + UIC_TR, tr);
- spin_unlock_irqrestore(&uic->lock, flags);
+ raw_spin_unlock_irqrestore(&uic->lock, flags);
return 0;
}
@@ -254,7 +254,7 @@ static struct uic * __init uic_init_one(struct device_node *node)
if (! uic)
return NULL; /* FIXME: panic? */
- spin_lock_init(&uic->lock);
+ raw_spin_lock_init(&uic->lock);
indexp = of_get_property(node, "cell-index", &len);
if (!indexp || (len != sizeof(u32))) {
printk(KERN_ERR "uic: Device node %s has missing or invalid "
diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel.c b/arch/x86/kernel/cpu/mcheck/mce_intel.c
index 8694ef56459d..38e49bc95ffc 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_intel.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_intel.c
@@ -28,7 +28,7 @@ static DEFINE_PER_CPU(mce_banks_t, mce_banks_owned);
* cmci_discover_lock protects against parallel discovery attempts
* which could race against each other.
*/
-static DEFINE_SPINLOCK(cmci_discover_lock);
+static DEFINE_RAW_SPINLOCK(cmci_discover_lock);
#define CMCI_THRESHOLD 1
@@ -85,7 +85,7 @@ static void cmci_discover(int banks, int boot)
int hdr = 0;
int i;
- spin_lock_irqsave(&cmci_discover_lock, flags);
+ raw_spin_lock_irqsave(&cmci_discover_lock, flags);
for (i = 0; i < banks; i++) {
u64 val;
@@ -116,7 +116,7 @@ static void cmci_discover(int banks, int boot)
WARN_ON(!test_bit(i, __get_cpu_var(mce_poll_banks)));
}
}
- spin_unlock_irqrestore(&cmci_discover_lock, flags);
+ raw_spin_unlock_irqrestore(&cmci_discover_lock, flags);
if (hdr)
printk(KERN_CONT "\n");
}
@@ -150,7 +150,7 @@ void cmci_clear(void)
if (!cmci_supported(&banks))
return;
- spin_lock_irqsave(&cmci_discover_lock, flags);
+ raw_spin_lock_irqsave(&cmci_discover_lock, flags);
for (i = 0; i < banks; i++) {
if (!test_bit(i, __get_cpu_var(mce_banks_owned)))
continue;
@@ -160,7 +160,7 @@ void cmci_clear(void)
wrmsrl(MSR_IA32_MCx_CTL2(i), val);
__clear_bit(i, __get_cpu_var(mce_banks_owned));
}
- spin_unlock_irqrestore(&cmci_discover_lock, flags);
+ raw_spin_unlock_irqrestore(&cmci_discover_lock, flags);
}
/*
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 68894fdc034b..96646b3aeca8 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -355,10 +355,10 @@ static void nmi_cpu_setup(void *dummy)
int cpu = smp_processor_id();
struct op_msrs *msrs = &per_cpu(cpu_msrs, cpu);
nmi_cpu_save_registers(msrs);
- spin_lock(&oprofilefs_lock);
+ raw_spin_lock(&oprofilefs_lock);
model->setup_ctrs(model, msrs);
nmi_cpu_setup_mux(cpu, msrs);
- spin_unlock(&oprofilefs_lock);
+ raw_spin_unlock(&oprofilefs_lock);
per_cpu(saved_lvtpc, cpu) = apic_read(APIC_LVTPC);
apic_write(APIC_LVTPC, APIC_DM_NMI);
}