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| author | Christian König <christian.koenig@amd.com> | 2017-08-25 09:14:43 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-08-31 13:46:35 -0400 |
| commit | e1eb899b45781b9bb77e6d7772d6e67bb0bc1a18 (patch) | |
| tree | a9ae3cb189187feffa80d868d5caa31bb2a78795 /include/uapi/drm | |
| parent | 73fb16e7ebee12953de32a7a2552e0cf2bf74ebf (diff) | |
| download | linux-next-e1eb899b45781b9bb77e6d7772d6e67bb0bc1a18.tar.gz | |
drm/amdgpu: add IOCTL interface for per VM BOs v3
Add the IOCTL interface so that applications can allocate per VM BOs.
Still WIP since not all corner cases are tested yet, but this reduces average
CS overhead for 10K BOs from 21ms down to 48us.
v2: add some extra checks, remove the WIP tag
v3: rename new flag to AMDGPU_GEM_CREATE_VM_ALWAYS_VALID
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include/uapi/drm')
| -rw-r--r-- | include/uapi/drm/amdgpu_drm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index 7b8fa11c2285..e055776f2f4c 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -87,6 +87,8 @@ extern "C" { #define AMDGPU_GEM_CREATE_SHADOW (1 << 4) /* Flag that allocating the BO should use linear VRAM */ #define AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS (1 << 5) +/* Flag that BO is always valid in this VM */ +#define AMDGPU_GEM_CREATE_VM_ALWAYS_VALID (1 << 6) struct drm_amdgpu_gem_create_in { /** the requested memory size */ |