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drm/i915: Flag the execlists context object as dirty after every use

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commit 903ecd0bb9 upstream.

Everytime we use the logical context with execlists it becomes dirty (as
the hardware will write the new register values afterwards, as well as
the GPU state that will be used). We need to then flag the context as
dirty everytime since after a swap-out/swap-in cycle the dirty flag will
be cleared, and a further swap-out cycle will then loose the most recent
GPU state.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chris Wilson
2015-08-14 12:59:19 +01:00
committed by Greg Kroah-Hartman
parent c407ed50a8
commit 8de8663a93
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/intel_lrc.c
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@@ -848,6 +848,8 @@ static int intel_lr_context_pin(struct intel_engine_cs *ring,
ret = intel_pin_and_map_ringbuffer_obj(ring->dev, ringbuf);
if (ret)
goto unpin_ctx_obj;
ctx_obj->dirty = true;
}
return ret;