drm/i915/selftests: Measure dispatch latency

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A useful metric of the system's health is how fast we can tell the GPU
to do various actions, so measure our latency.

v2: Refactor all the instruction building into emitters.
v3: Mark the error handling if not perfect, at least consistent.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200519130802.4067-1-chris@chris-wilson.co.uk

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Chris Wilson 2020-05-19 14:08:02 +01:00

parent 649c10ff85

commit 25c26f18ea

1 changed files with 823 additions and 0 deletions

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drivers/gpu/drm/i915/selftests/i915_request.c

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