diff options
| author | Alex Deucher <[email protected]> | 2025-02-18 18:06:19 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2025-04-08 20:48:22 +0000 |
| commit | 4310acd4464bc6aed0d211d94b1d343ea3cb62f8 (patch) | |
| tree | a0c267a4efe5961a401faf385bdeb916f19f50c4 /drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | |
| parent | drm/amdgpu: add parameter to disable kernel queues (diff) | |
| download | kernel-4310acd4464bc6aed0d211d94b1d343ea3cb62f8.tar.gz kernel-4310acd4464bc6aed0d211d94b1d343ea3cb62f8.zip | |
drm/amdgpu: add ring flag for no user submissions
This would be set by IPs which only accept submissions
from the kernel, not userspace, such as when kernel
queues are disabled. Don't expose the rings to userspace
and reject any submissions in the CS IOCTL.
v2: fix error code (Alex)
Reviewed-by: Sunil Khatri<[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 82df06a72ee0..ea047305eb64 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -349,6 +349,10 @@ static int amdgpu_cs_p2_ib(struct amdgpu_cs_parser *p, ring = amdgpu_job_ring(job); ib = &job->ibs[job->num_ibs++]; + /* submissions to kernel queues are disabled */ + if (ring->no_user_submission) + return -EINVAL; + /* MM engine doesn't support user fences */ if (p->uf_bo && ring->funcs->no_user_fence) return -EINVAL; |