drm/i915/gt: Always poison the kernel_context image before unparking

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Keep scrubbing the kernel_context image with poison before we reset it
in order to demonstrate that we will be resilient in the case where it
is accidentally overwritten on idle.

Suggested-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200102131707.1463945-5-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2020-01-02 13:17:07 +00:00

parent fb218f2027

commit 1d0e2c9359

3 changed files with 21 additions and 3 deletions

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2

drivers/gpu/drm/i915/gt/intel_context_types.h

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18

drivers/gpu/drm/i915/gt/intel_engine_pm.c

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4

drivers/gpu/drm/i915/gt/intel_lrc.c

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