[PATCH] drm/nouveau: Skip the Turing CE workaround object for non-GR channels
From: Mary Guillemard
Date: Wed Oct 07 2026 - 10:54:27 EST
This workaround is here for the old Gallium driver and predate async CE
and NVDEC. Instead of only skipping it for NVDEC, let's only apply it
in case of GR channels.
This should make async CE work properly on Turing by stopping the assign
of a GRCE. (here CE0)
Signed-off-by: Mary Guillemard <mary@xxxxxxxxx>
---
drivers/gpu/drm/nouveau/nouveau_abi16.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index e907c1d07887..e876f154963d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -488,7 +488,7 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
goto done;
break;
case NV_DEVICE_INFO_V0_TURING:
- if (engine != NV_DEVICE_HOST_RUNLIST_ENGINES_NVDEC) {
+ if (engine == NV_DEVICE_HOST_RUNLIST_ENGINES_GR) {
ret = nvif_object_ctor(&chan->chan->user, "abi16CeWar",
0, TURING_DMA_COPY_A, NULL, 0,
&chan->ce);
---
base-commit: 70456f05d4b6396b22048c4b8cd3cb98ecf9f9e3
change-id: 20261007-turing-async-ce-fix-42e179e27d4a
Best regards,
--
Mary Guillemard <mary@xxxxxxxxx>