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Commit 308dceba authored by Francisco Jerez's avatar Francisco Jerez Committed by Ben Skeggs
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drm/nouveau: Ack the context switch interrupt before switching contexts. 



Leaving the IRQ unack'ed while switching contexts makes the switch
fail randomly on some nv1x.

Signed-off-by: default avatarFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 3c9b2534

drivers/gpu/drm/nouveau/nouveau_irq.c

+2 −2
Original line number Diff line number Diff line
@@ -586,11 +586,11 @@ nouveau_pgraph_irq_handler(struct drm_device *dev) 
		}



		if (status & NV_PGRAPH_INTR_CONTEXT_SWITCH) {

			nouveau_pgraph_intr_context_switch(dev);



			status &= ~NV_PGRAPH_INTR_CONTEXT_SWITCH;

			nv_wr32(dev, NV03_PGRAPH_INTR,

				 NV_PGRAPH_INTR_CONTEXT_SWITCH);



			nouveau_pgraph_intr_context_switch(dev);

		}



		if (status) {