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drm/nouveau: Ack the context switch interrupt before switching contexts.

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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>
This commit is contained in:
Francisco Jerez 2010-08-04 04:41:55 +02:00 committed by Ben Skeggs
parent 3c9b25349e
commit 308dcebac7
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/nouveau/nouveau_irq.c
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@ -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) {