drm/i915: Add process identifier to requests

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We use the pid of the process which opened our device when
we track which was the culprit of the gpu hang. But as that
file descriptor might get inherited, we might blame the
wrong process when we record the error state.

Track process identifiers in requests to always find
the correct offender.

v2: Track only user processes (Chris)

Cc: Kenneth Graunke <kenneth@whitecape.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
[danvet: drop NULL check before put_pid as suggested by Chris.]
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Mika Kuoppala 2015-02-12 10:26:02 +02:00 • committed by Daniel Vetter

parent 65ca7514e2

commit 071c92de1d

3 changed files with 9 additions and 3 deletions

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3

drivers/gpu/drm/i915/i915_drv.h

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4

drivers/gpu/drm/i915/i915_gem.c

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5

drivers/gpu/drm/i915/i915_gpu_error.c

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