Commit ed454f2c authored Jul 21, 2017 by Chris Wilson Committed by Daniel Vetter Jul 27, 2017

drm/i915: Clear engine irq posted following a reset



When the GPU is reset, we want to discard all pending notifications as
either we have manually completed them, or they are no longer
applicable. Make sure we do reset the engine->irq_posted prior to
re-enabling the engine (e.g. the interrupt tasklets) in
i915_gem_reset_finish_engine().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michel Thierry <michel.thierry@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170721123238.16428-11-chris@chris-wilson.co.uk


Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent bf2eac3b

drivers/gpu/drm/i915/i915_gem.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -2964,6 +2964,8 @@ static bool i915_gem_reset_request(struct drm_i915_gem_request *request)
		void i915_gem_reset_engine(struct intel_engine_cs *engine,
		struct drm_i915_gem_request *request)
		{
		engine->irq_posted = 0;

		if (request && i915_gem_reset_request(request)) {
		DRM_DEBUG_DRIVER("resetting %s to restart from tail of request 0x%x\n",
		engine->name, request->global_seqno);