diff options
| author | Chris Wilson <[email protected]> | 2021-02-05 11:29:12 +0000 |
|---|---|---|
| committer | Daniel Vetter <[email protected]> | 2021-03-24 19:31:59 +0100 |
| commit | 985458d706bd86c16234bfc155535da2a64a9dde (patch) | |
| tree | b095c54bde097623af1643b765acf3d18c338100 /tools/perf/util/trace-event-scripting.c | |
| parent | dc4304001230557e30cf5eae52b4d7caa6473855 (diff) | |
drm/i915/selftest: Synchronise with the GPU timestamp
Wait for the GPU to wake up from the semaphore before measuring the
time, so that we coordinate the sampling on both the CPU and GPU for
more accurate comparisons.
v2: Switch to local_irq_disable() as once suggested by Mika.
Reported-by: Bruce Chang <[email protected]>
Signed-off-by: Chris Wilson <[email protected]>
Cc: CQ Tang <[email protected]>
Reviewed-by: Bruce Chang <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Daniel Vetter <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions