39,11 → 39,7 |
__asm__ __volatile__("xorl %%eax,%%eax\n\t" \ |
"cpuid\n\t" \ |
"rdtsc\n\t" \ |
"movl %%eax,%%esi\n\t" \ |
"movl %%edx,%%edi\n\t" \ |
"xorl %%eax,%%eax\n\t" \ |
"cpuid" \ |
: "=S" (low), "=D" (high) \ |
: "=a" (low), "=d" (high) \ |
:: "ebx", "ecx") |
|
#define rdtscll(val) \ |
50,12 → 46,6 |
__asm__ __volatile__("xorl %%eax,%%eax\n\t" \ |
"cpuid\n\t" \ |
"rdtsc\n\t" \ |
"pushl %%eax\n\t" \ |
"pushl %%edx\n\t" \ |
"xorl %%eax,%%eax\n\t" \ |
"cpuid\n\t" \ |
"popl %%edx\n\t" \ |
"popl %%eax\n\t" \ |
: "=A" (val) \ |
:: "ebx","ecx") |
|
68,7 → 58,7 |
#ifdef __O4000__ |
#define ll_read_timespec ll_read_timespec_4000 |
#else |
#define ll_read_timespec ll_read_timespec_slow |
#define ll_read_timespec ll_read_timespec_8000 |
#endif |
#endif |
#endif |
84,8 → 74,7 |
return; |
} |
|
__asm__("xchgl %%eax,%%edx\n\t" |
"rdtsc\n\t" |
__asm__("rdtsc\n\t" |
"subl (%%edi),%%eax\n\t" |
"sbbl 4(%%edi),%%edx\n\t" |
"divl %%ebx\n\t" |
109,12 → 98,13 |
return; |
} |
|
__asm__("xchgl %%eax,%%edx\n\t" |
"rdtsc\n\t" |
__asm__("rdtsc\n\t" |
"subl (%%edi),%%eax\n\t" |
"sbbl 4(%%edi),%%edx\n\t" |
"divl %%ebx\n\t" |
"movl %%eax,%%ebx\n\t" |
"xorl %%eax,%%eax\n\t" |
"shrdl $1,%%edx,%%eax\n\t" |
"shrl %%edx\n\t" |
"divl %%ecx\n\t" |
: "=a" (tspec->tv_nsec), "=b" (tspec->tv_sec) |
134,14 → 124,14 |
return; |
} |
|
__asm__("xchgl %%eax,%%edx\n\t" |
"rdtsc\n\t" |
__asm__("rdtsc\n\t" |
"subl (%%edi),%%eax\n\t" |
"sbbl 4(%%edi),%%edx\n\t" |
"divl %%ebx\n\t" |
"movl %%eax,%%ebx\n\t" |
"shrl %%edx\n\t" |
"shrl %%edx\n\t" |
"xorl %%eax,%%eax\n\t" |
"shrdl $2,%%edx,%%eax\n\t" |
"shrl $2,%%edx\n\t" |
"divl %%ecx\n\t" |
: "=a" (tspec->tv_nsec), "=b" (tspec->tv_sec) |
: "D" (ptr_init_tsc) , "b" (clk_opt_1), "c" (clk_opt_4) |
150,39 → 140,30 |
} |
|
//Low level time read function |
extern __inline__ void ll_read_timespec_slow(struct timespec *tspec) |
extern __inline__ void ll_read_timespec_8000(struct timespec *tspec) |
{ |
extern unsigned int clk_per_msec; |
extern unsigned int clk_opt_0,clk_opt_5; |
extern unsigned long long *ptr_init_tsc; |
|
if (clk_per_msec == 0) { |
if (clk_opt_0 == 0) { |
NULL_TIMESPEC(tspec); |
return; |
} |
|
__asm__("xchgl %%eax,%%edx\n\t" |
"rdtsc\n\t" |
|
__asm__("rdtsc\n\t" |
"subl (%%edi),%%eax\n\t" |
"sbbl 4(%%edi),%%edx\n\t" |
"movl %%edx,%%ecx\n\t" |
"movl $1000000,%%edi\n\t" |
"mull %%edi\n\t" |
"movl %%eax,%%esi\n\t" |
"movl %%ecx,%%eax\n\t" |
"movl %%edx,%%ecx\n\t" |
"mull %%edi\n\t" |
"addl %%ecx,%%eax\n\t" |
"adcl $0,%%edx\n\t" |
"divl %%ebx\n\t" |
"movl %%eax,%%ecx\n\t" |
"movl %%esi,%%eax\n\t" |
"divl %%ebx\n\t" |
"movl %%ecx,%%edx\n\t" |
"movl $1000000000,%%edi\n\t" |
"divl %%edi\n\t" |
: "=a" (tspec->tv_sec), "=d" (tspec->tv_nsec) |
: "D" (ptr_init_tsc), "b" (clk_per_msec) |
: "ecx", "esi"); |
"sbbl 4(%%edi),%%edx\n\t" |
"shrdl $1,%%edx,%%eax\n\t" |
"shrl %%edx\n\t" |
"divl %%ebx\n\t" |
"movl %%eax,%%ebx\n\t" |
"xorl %%eax,%%eax\n\t" |
"shrdl $2,%%edx,%%eax\n\t" |
"shrl $2,%%edx\n\t" |
"divl %%ecx\n\t" |
: "=b" (tspec->tv_sec), "=a" (tspec->tv_nsec) |
: "D" (ptr_init_tsc), "b" (clk_opt_0), "c" (clk_opt_5) |
: "edx"); |
|
} |
|