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: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_irq.c b/drivers/gpu/drm/nouveau/nouveau_irq.c
index 53360f1..0a4a617 100644
--- a/drivers/gpu/drm/nouveau/nouveau_irq.c
+++ b/drivers/gpu/drm/nouveau/nouveau_irq.c
@@ -586,11 +586,11 @@
}
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) {