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drm/i915: Skip repeated calls to i915_gem_set_wedged()

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If we already wedged, i915_gem_set_wedged() becomes a complicated no-op.

References: https://bugs.freedesktop.org/show_bug.cgi?id=107343
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180723145335.24579-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2018-07-23 15:53:35 +01:00
parent 07685c827b
commit 3970c65c2b
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/i915/i915_gem.c
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@ -3312,8 +3312,8 @@ void i915_gem_set_wedged(struct drm_i915_private *i915)
intel_engine_dump(engine, &p, "%s\n", engine->name);
}
set_bit(I915_WEDGED, &i915->gpu_error.flags);
smp_mb__after_atomic();
if (test_and_set_bit(I915_WEDGED, &i915->gpu_error.flags))
goto out;
/*
* First, stop submission to hw, but do not yet complete requests by
@ -3372,6 +3372,7 @@ void i915_gem_set_wedged(struct drm_i915_private *i915)
i915_gem_reset_finish_engine(engine);
}
out:
GEM_TRACE("end\n");
wake_up_all(&i915->gpu_error.reset_queue);