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authorIlia Mirkin <imirkin@alum.mit.edu>2017-04-03 22:46:14 -0400
committerBen Skeggs <bskeggs@redhat.com>2017-04-29 22:39:23 +1000
commiteef4988ab4c1a99e88e535502a67763a78d51515 (patch)
tree61f9b665dc30e21c876027294151a284a0008e46 /drivers/gpu
parent99a97a8ba9881fc47901ff36b057e5cd0bf06af0 (diff)
drm/nouveau/fifo/nv40: no ctxsw for pre-nv44 mpeg engine
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c
index 0ec179fc40a1..5f722c6e8a2f 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c
@@ -44,6 +44,8 @@ nv40_fifo_dma_engine(struct nvkm_engine *engine, u32 *reg, u32 *ctx)
*ctx = 0x38;
return true;
case NVKM_ENGINE_MPEG:
+ if (engine->subdev.device->chipset < 0x44)
+ return false;
*reg = 0x00330c;
*ctx = 0x54;
return true;