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

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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>
Cc: stable@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Chris Wilson 2015-08-14 12:59:19 +01:00 committed by Jani Nikula
parent d2944cf213
commit 903ecd0bb9
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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@ -1012,6 +1012,8 @@ 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;