| arch.h | arch.h | |||
|---|---|---|---|---|
| skipping to change at line 63 | skipping to change at line 63 | |||
| * kernels should think twice before enabling this", but for now let's | * kernels should think twice before enabling this", but for now let's | |||
| * be conservative and leave the full barrier on 32-bit processors. Also, | * be conservative and leave the full barrier on 32-bit processors. Also, | |||
| * IDT WinChip supports weak store ordering, and the kernel may enable it | * IDT WinChip supports weak store ordering, and the kernel may enable it | |||
| * under our feet; cmm_smp_wmb() ceases to be a nop for these processors. | * under our feet; cmm_smp_wmb() ceases to be a nop for these processors. | |||
| */ | */ | |||
| #define cmm_mb() __asm__ __volatile__ ("lock; addl $0,0(%%esp)":::"memor y") | #define cmm_mb() __asm__ __volatile__ ("lock; addl $0,0(%%esp)":::"memor y") | |||
| #define cmm_rmb() __asm__ __volatile__ ("lock; addl $0,0(%%esp)":::"memor y") | #define cmm_rmb() __asm__ __volatile__ ("lock; addl $0,0(%%esp)":::"memor y") | |||
| #define cmm_wmb() __asm__ __volatile__ ("lock; addl $0,0(%%esp)"::: "memo ry") | #define cmm_wmb() __asm__ __volatile__ ("lock; addl $0,0(%%esp)"::: "memo ry") | |||
| #endif | #endif | |||
| #define caa_cpu_relax() __asm__ __volatile__ ("rep; nop" : : : "memo ry"); | #define caa_cpu_relax() __asm__ __volatile__ ("rep; nop" : : : "memo ry") | |||
| #define rdtscll(val) \ | #define rdtscll(val) \ | |||
| do { \ | do { \ | |||
| unsigned int __a, __d; \ | unsigned int __a, __d; \ | |||
| __asm__ __volatile__ ("rdtsc" : "=a" (__a), "=d" (__d)); \ | __asm__ __volatile__ ("rdtsc" : "=a" (__a), "=d" (__d)); \ | |||
| (val) = ((unsigned long long)__a) \ | (val) = ((unsigned long long)__a) \ | |||
| | (((unsigned long long)__d) << 32); \ | | (((unsigned long long)__d) << 32); \ | |||
| } while(0) | } while(0) | |||
| typedef unsigned long long cycles_t; | typedef unsigned long long cycles_t; | |||
| End of changes. 1 change blocks. | ||||
| 1 lines changed or deleted | 1 lines changed or added | |||