cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

timer.h (1401B)

      1#ifndef __NVIF_TIMER_H__
      2#define __NVIF_TIMER_H__
      3#include <nvif/os.h>
      4
      5struct nvif_timer_wait {
      6	struct nvif_device *device;
      7	u64 limit;
      8	u64 time0;
      9	u64 time1;
     10	int reads;
     11};
     12
     13void nvif_timer_wait_init(struct nvif_device *, u64 nsec,
     14			  struct nvif_timer_wait *);
     15s64 nvif_timer_wait_test(struct nvif_timer_wait *);
     16
     17/* Delay based on GPU time (ie. PTIMER).
     18 *
     19 * Will return -ETIMEDOUT unless the loop was terminated with 'break',
     20 * where it will return the number of nanoseconds taken instead.
     21 */
     22#define nvif_nsec(d,n,cond...) ({                                              \
     23	struct nvif_timer_wait _wait;                                          \
     24	s64 _taken = 0;                                                        \
     25                                                                               \
     26	nvif_timer_wait_init((d), (n), &_wait);                                \
     27	do {                                                                   \
     28		cond                                                           \
     29	} while ((_taken = nvif_timer_wait_test(&_wait)) >= 0);                \
     30                                                                               \
     31	_taken;                                                                \
     32})
     33#define nvif_usec(d,u,cond...) nvif_nsec((d), (u) * 1000, ##cond)
     34#define nvif_msec(d,m,cond...) nvif_usec((d), (m) * 1000, ##cond)
     35#endif