drm/nv40: Ignore sync-to-vblank active when waiting for idle.
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_reg.h b/drivers/gpu/drm/nouveau/nouveau_reg.h
index 1b42541..1bbe703 100644
--- a/drivers/gpu/drm/nouveau/nouveau_reg.h
+++ b/drivers/gpu/drm/nouveau/nouveau_reg.h
@@ -332,6 +332,7 @@
#define NV04_PGRAPH_BSWIZZLE5 0x004006A0
#define NV03_PGRAPH_STATUS 0x004006B0
#define NV04_PGRAPH_STATUS 0x00400700
+# define NV40_PGRAPH_STATUS_SYNC_STALL 0x00004000
#define NV04_PGRAPH_TRAPPED_ADDR 0x00400704
#define NV04_PGRAPH_TRAPPED_DATA 0x00400708
#define NV04_PGRAPH_SURFACE 0x0040070C
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index af203cc..82b5818 100644
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -1105,7 +1105,13 @@
/* Waits for PGRAPH to go completely idle */
bool nouveau_wait_for_idle(struct drm_device *dev)
{
- if (!nv_wait(dev, NV04_PGRAPH_STATUS, 0xffffffff, 0x00000000)) {
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ uint32_t mask = ~0;
+
+ if (dev_priv->card_type == NV_40)
+ mask &= ~NV40_PGRAPH_STATUS_SYNC_STALL;
+
+ if (!nv_wait(dev, NV04_PGRAPH_STATUS, mask, 0)) {
NV_ERROR(dev, "PGRAPH idle timed out with status 0x%08x\n",
nv_rd32(dev, NV04_PGRAPH_STATUS));
return false;
