drm/i915: Only try to park engines after a failed reset

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Currently we try to stop the engine by programming the ring registers to
be disabled before we perform the reset. Sometimes, we see the context
image also have invalid ring registers, which one presumes may be
actually caused by us doing so. Lets risk not doing programming the
ring to zero on the first attempt to avoid preserving that corruption
into the context image, leaving the w/a in place for subsequent
reset attempts.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190213232047.8486-1-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2019-02-13 23:20:47 +00:00

parent d31c85fc86

commit 9a3b19a16d

2 changed files with 10 additions and 5 deletions

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13

drivers/gpu/drm/i915/i915_reset.c

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2

drivers/gpu/drm/i915/intel_lrc.c

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