diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2013-08-27 11:20:43 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2013-08-27 12:31:13 +0100 |
| commit | 1c3fd70357a57f823846010f59ba75f19e5d4af9 (patch) | |
| tree | e3ef96d481a5c1d59782dab6c1b38c7e712adcd1 /overlay/perf.h | |
| parent | 6ec1d2c0ae631a3c0af445d4baa53561228be9a5 (diff) | |
overlay: Read power from perf_events
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'overlay/perf.h')
| -rw-r--r-- | overlay/perf.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/overlay/perf.h b/overlay/perf.h new file mode 100644 index 00000000..e2be0f7e --- /dev/null +++ b/overlay/perf.h @@ -0,0 +1,60 @@ +#ifndef I915_PERF_H +#define I915_PERF_H + +#include <linux/perf_event.h> + +#define I915_SAMPLE_BUSY 0 +#define I915_SAMPLE_WAIT 1 +#define I915_SAMPLE_SEMA 2 + +#define I915_SAMPLE_RCS 0 +#define I915_SAMPLE_VCS 1 +#define I915_SAMPLE_BCS 2 +#define I915_SAMPLE_VECS 3 + +#define __I915_PERF_COUNT(ring, id) ((ring) << 4 | (id)) + +#define I915_PERF_COUNT_RCS_BUSY __I915_PERF_COUNT(I915_SAMPLE_RCS, I915_SAMPLE_BUSY) +#define I915_PERF_COUNT_RCS_WAIT __I915_PERF_COUNT(I915_SAMPLE_RCS, I915_SAMPLE_WAIT) +#define I915_PERF_COUNT_RCS_SEMA __I915_PERF_COUNT(I915_SAMPLE_RCS, I915_SAMPLE_SEMA) + +#define I915_PERF_COUNT_VCS_BUSY __I915_PERF_COUNT(I915_SAMPLE_VCS, I915_SAMPLE_BUSY) +#define I915_PERF_COUNT_VCS_WAIT __I915_PERF_COUNT(I915_SAMPLE_VCS, I915_SAMPLE_WAIT) +#define I915_PERF_COUNT_VCS_SEMA __I915_PERF_COUNT(I915_SAMPLE_VCS, I915_SAMPLE_SEMA) + +#define I915_PERF_COUNT_BCS_BUSY __I915_PERF_COUNT(I915_SAMPLE_BCS, I915_SAMPLE_BUSY) +#define I915_PERF_COUNT_BCS_WAIT __I915_PERF_COUNT(I915_SAMPLE_BCS, I915_SAMPLE_WAIT) +#define I915_PERF_COUNT_BCS_SEMA __I915_PERF_COUNT(I915_SAMPLE_BCS, I915_SAMPLE_SEMA) + +#define I915_PERF_COUNT_VECS_BUSY __I915_PERF_COUNT(I915_SAMPLE_VECS, I915_SAMPLE_BUSY) +#define I915_PERF_COUNT_VECS_WAIT __I915_PERF_COUNT(I915_SAMPLE_VECS, I915_SAMPLE_WAIT) +#define I915_PERF_COUNT_VECS_SEMA __I915_PERF_COUNT(I915_SAMPLE_VECS, I915_SAMPLE_SEMA) + +#define I915_PERF_ACTUAL_FREQUENCY 32 +#define I915_PERF_REQUESTED_FREQUENCY 33 +#define I915_PERF_ENERGY 34 +#define I915_PERF_INTERRUPTS 35 + +static inline int +perf_event_open(struct perf_event_attr *attr, + pid_t pid, + int cpu, + int group_fd, + unsigned long flags) +{ +#ifndef __NR_perf_event_open +#if defined(__i386__) +#define __NR_perf_event_open 336 +#elif defined(__x86_64__) +#define __NR_perf_event_open 298 +#else +#define __NR_perf_event_open 0 +#endif +#endif + attr->size = sizeof(*attr); + return syscall(__NR_perf_event_open, attr, pid, cpu, group_fd, flags); +} + +uint64_t i915_type_id(void); + +#endif /* I915_PERF_H */ |