diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-07-05 13:13:03 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-07-05 13:13:03 -0400 |
| commit | 5e66dd6d66ffe758b39b6dcadf2330753ee1159b (patch) | |
| tree | a72cdcff4448e4af9425cc213ddf56ab23e697fe /include/asm-x86_64/system.h | |
| parent | 026477c1141b67e98e3bd8bdedb7d4b88a3ecd09 (diff) | |
| parent | ca78f6baca863afe2e6a244a0fe94b3a70211d46 (diff) | |
Merge branch 'master' of /home/trondmy/kernel/linux-2.6/
Diffstat (limited to 'include/asm-x86_64/system.h')
| -rw-r--r-- | include/asm-x86_64/system.h | 38 |
1 files changed, 1 insertions, 37 deletions
diff --git a/include/asm-x86_64/system.h b/include/asm-x86_64/system.h index 68e559f3631c..f67f2873a922 100644 --- a/include/asm-x86_64/system.h +++ b/include/asm-x86_64/system.h | |||
| @@ -244,43 +244,7 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, | |||
| 244 | 244 | ||
| 245 | #define warn_if_not_ulong(x) do { unsigned long foo; (void) (&(x) == &foo); } while (0) | 245 | #define warn_if_not_ulong(x) do { unsigned long foo; (void) (&(x) == &foo); } while (0) |
| 246 | 246 | ||
| 247 | /* interrupt control.. */ | 247 | #include <linux/irqflags.h> |
| 248 | #define local_save_flags(x) do { warn_if_not_ulong(x); __asm__ __volatile__("# save_flags \n\t pushfq ; popq %q0":"=g" (x): /* no input */ :"memory"); } while (0) | ||
| 249 | #define local_irq_restore(x) __asm__ __volatile__("# restore_flags \n\t pushq %0 ; popfq": /* no output */ :"g" (x):"memory", "cc") | ||
| 250 | |||
| 251 | #ifdef CONFIG_X86_VSMP | ||
| 252 | /* Interrupt control for VSMP architecture */ | ||
| 253 | #define local_irq_disable() do { unsigned long flags; local_save_flags(flags); local_irq_restore((flags & ~(1 << 9)) | (1 << 18)); } while (0) | ||
| 254 | #define local_irq_enable() do { unsigned long flags; local_save_flags(flags); local_irq_restore((flags | (1 << 9)) & ~(1 << 18)); } while (0) | ||
| 255 | |||
| 256 | #define irqs_disabled() \ | ||
| 257 | ({ \ | ||
| 258 | unsigned long flags; \ | ||
| 259 | local_save_flags(flags); \ | ||
| 260 | (flags & (1<<18)) || !(flags & (1<<9)); \ | ||
| 261 | }) | ||
| 262 | |||
| 263 | /* For spinlocks etc */ | ||
| 264 | #define local_irq_save(x) do { local_save_flags(x); local_irq_restore((x & ~(1 << 9)) | (1 << 18)); } while (0) | ||
| 265 | #else /* CONFIG_X86_VSMP */ | ||
| 266 | #define local_irq_disable() __asm__ __volatile__("cli": : :"memory") | ||
| 267 | #define local_irq_enable() __asm__ __volatile__("sti": : :"memory") | ||
| 268 | |||
| 269 | #define irqs_disabled() \ | ||
| 270 | ({ \ | ||
| 271 | unsigned long flags; \ | ||
| 272 | local_save_flags(flags); \ | ||
| 273 | !(flags & (1<<9)); \ | ||
| 274 | }) | ||
| 275 | |||
| 276 | /* For spinlocks etc */ | ||
| 277 | #define local_irq_save(x) do { warn_if_not_ulong(x); __asm__ __volatile__("# local_irq_save \n\t pushfq ; popq %0 ; cli":"=g" (x): /* no input */ :"memory"); } while (0) | ||
| 278 | #endif | ||
| 279 | |||
| 280 | /* used in the idle loop; sti takes one instruction cycle to complete */ | ||
| 281 | #define safe_halt() __asm__ __volatile__("sti; hlt": : :"memory") | ||
| 282 | /* used when interrupts are already enabled or to shutdown the processor */ | ||
| 283 | #define halt() __asm__ __volatile__("hlt": : :"memory") | ||
| 284 | 248 | ||
| 285 | void cpu_idle_wait(void); | 249 | void cpu_idle_wait(void); |
| 286 | 250 | ||
