drm/v3d: Add more tracepoints for V3D GPU rendering.

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The core scheduler tells us when the job is pushed to the scheduler's
queue, and I had the job_run functions saying when they actually queue
the job to the hardware.  By adding tracepoints for the very top of
the ioctls and the IRQs signaling job completion, "perf record -a -e
v3d:.\* -e gpu_scheduler:.\* <job>; perf script" gets you a pretty
decent timeline.

Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20181201005759.28093-5-eric@anholt.net
Reviewed-by: Dave Emett <david.emett@broadcom.com>

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This commit is contained in:

Eric Anholt 2018-11-30 16:57:58 -08:00

parent db176f6ba1

commit 55a9b74846

3 changed files with 121 additions and 3 deletions

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4

drivers/gpu/drm/v3d/v3d_gem.c

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19

drivers/gpu/drm/v3d/v3d_irq.c

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101

drivers/gpu/drm/v3d/v3d_trace.h

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