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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-05-30 13:13:34 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-06-01 14:22:16 +0100 |
| commit | aed2fc102ffaa9bd41e4cff140d3ec8482d13ff5 (patch) | |
| tree | 715b9530c51a80dce3c535a10b8328c26c23ec64 /tools/perf | |
| parent | drm/i915/guc: Assert that we switch between known ggtt->invalidate functions (diff) | |
| download | linux-aed2fc102ffaa9bd41e4cff140d3ec8482d13ff5.tar.gz linux-aed2fc102ffaa9bd41e4cff140d3ec8482d13ff5.zip | |
drm/i915: Check the ring is empty when declaring the engines are idle
As another precaution when testing whether the CS engine is actually
idle, also inspect the ring's HEAD/TAIL registers, which should be equal
when there are no commands left to execute by the GPU.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170530121334.17364-3-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Diffstat (limited to 'tools/perf')
0 files changed, 0 insertions, 0 deletions