diff options
Diffstat (limited to 'include/asm-i386/system.h')
| -rw-r--r-- | include/asm-i386/system.h | 43 |
1 files changed, 11 insertions, 32 deletions
diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h index cab0180567f..49928eb33f8 100644 --- a/include/asm-i386/system.h +++ b/include/asm-i386/system.h @@ -82,10 +82,6 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \ #define savesegment(seg, value) \ asm volatile("mov %%" #seg ",%0":"=rm" (value)) -/* - * Clear and set 'TS' bit respectively - */ -#define clts() __asm__ __volatile__ ("clts") #define read_cr0() ({ \ unsigned int __dummy; \ __asm__ __volatile__( \ @@ -94,7 +90,7 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \ __dummy; \ }) #define write_cr0(x) \ - __asm__ __volatile__("movl %0,%%cr0": :"r" (x)); + __asm__ __volatile__("movl %0,%%cr0": :"r" (x)) #define read_cr2() ({ \ unsigned int __dummy; \ @@ -104,7 +100,7 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \ __dummy; \ }) #define write_cr2(x) \ - __asm__ __volatile__("movl %0,%%cr2": :"r" (x)); + __asm__ __volatile__("movl %0,%%cr2": :"r" (x)) #define read_cr3() ({ \ unsigned int __dummy; \ @@ -114,7 +110,7 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \ __dummy; \ }) #define write_cr3(x) \ - __asm__ __volatile__("movl %0,%%cr3": :"r" (x)); + __asm__ __volatile__("movl %0,%%cr3": :"r" (x)) #define read_cr4() ({ \ unsigned int __dummy; \ @@ -123,7 +119,6 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \ :"=r" (__dummy)); \ __dummy; \ }) - #define read_cr4_safe() ({ \ unsigned int __dummy; \ /* This could fault if %cr4 does not exist */ \ @@ -135,15 +130,19 @@ __asm__ __volatile__ ("movw %%dx,%1\n\t" \ : "=r" (__dummy): "0" (0)); \ __dummy; \ }) - #define write_cr4(x) \ - __asm__ __volatile__("movl %0,%%cr4": :"r" (x)); + __asm__ __volatile__("movl %0,%%cr4": :"r" (x)) + +/* + * Clear and set 'TS' bit respectively + */ +#define clts() __asm__ __volatile__ ("clts") #define stts() write_cr0(8 | read_cr0()) #endif /* __KERNEL__ */ #define wbinvd() \ - __asm__ __volatile__ ("wbinvd": : :"memory"); + __asm__ __volatile__ ("wbinvd": : :"memory") static inline unsigned long get_limit(unsigned long segment) { @@ -454,27 +453,7 @@ static inline unsigned long long __cmpxchg64(volatile void *ptr, unsigned long l #define set_mb(var, value) do { var = value; barrier(); } while (0) #endif -#define set_wmb(var, value) do { var = value; wmb(); } while (0) - -/* interrupt control.. */ -#define local_save_flags(x) do { typecheck(unsigned long,x); __asm__ __volatile__("pushfl ; popl %0":"=g" (x): /* no input */); } while (0) -#define local_irq_restore(x) do { typecheck(unsigned long,x); __asm__ __volatile__("pushl %0 ; popfl": /* no output */ :"g" (x):"memory", "cc"); } while (0) -#define local_irq_disable() __asm__ __volatile__("cli": : :"memory") -#define local_irq_enable() __asm__ __volatile__("sti": : :"memory") -/* used in the idle loop; sti takes one instruction cycle to complete */ -#define safe_halt() __asm__ __volatile__("sti; hlt": : :"memory") -/* used when interrupts are already enabled or to shutdown the processor */ -#define halt() __asm__ __volatile__("hlt": : :"memory") - -#define irqs_disabled() \ -({ \ - unsigned long flags; \ - local_save_flags(flags); \ - !(flags & (1<<9)); \ -}) - -/* For spinlocks etc */ -#define local_irq_save(x) __asm__ __volatile__("pushfl ; popl %0 ; cli":"=g" (x): /* no input */ :"memory") +#include <linux/irqflags.h> /* * disable hlt during certain critical i/o operations |