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| author | Alex Deucher <alexander.deucher@amd.com> | 2023-08-09 15:03:55 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-08-11 14:48:07 -0400 |
| commit | 6be2ad4f0073c541146caa66c5ae936c955a8224 (patch) | |
| tree | 8cfa7fa4b21e0ba4350022edc9619e2a32402ffe /drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | |
| parent | 80e28aaf93db246c7eb0fb6430d1ba2b140d63b5 (diff) | |
| download | linux-stable-6be2ad4f0073c541146caa66c5ae936c955a8224.tar.gz linux-stable-6be2ad4f0073c541146caa66c5ae936c955a8224.tar.bz2 linux-stable-6be2ad4f0073c541146caa66c5ae936c955a8224.zip | |
drm/amdgpu: don't allow userspace to create a doorbell BO
We need the domains in amdgpu_drm.h for the kernel driver to manage
the pool, but we don't want userspace using it until the code
is ready. So reject for now.
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index 693b1fd1191a..ca4d2d430e28 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -289,6 +289,10 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data, uint32_t handle, initial_domain; int r; + /* reject DOORBELLs until userspace code to use it is available */ + if (args->in.domains & AMDGPU_GEM_DOMAIN_DOORBELL) + return -EINVAL; + /* reject invalid gem flags */ if (flags & ~(AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | AMDGPU_GEM_CREATE_NO_CPU_ACCESS | |