diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2021-02-05 11:29:12 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-03-24 19:31:59 +0100 |
| commit | 985458d706bd86c16234bfc155535da2a64a9dde (patch) | |
| tree | b095c54bde097623af1643b765acf3d18c338100 /drivers/gpu/drm/amd/amdgpu/amdgpu_ras.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 <yu.bruce.chang@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: CQ Tang <cq.tang@intel.com>
Reviewed-by: Bruce Chang <yu.bruce.chang@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210205112912.22978-1-chris@chris-wilson.co.uk
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c')
0 files changed, 0 insertions, 0 deletions