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| author | Alex Deucher <alexander.deucher@amd.com> | 2022-09-20 13:03:36 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-08-07 17:14:06 -0400 |
| commit | 899272354dbc1f8ca2d94ea0ddc0174a14fc8324 (patch) | |
| tree | af12769817c11a45ae2386adfa619d4283f9b8d8 /include/uapi/drm/amdgpu_drm.h | |
| parent | 794c33c66f058a0fbbb79e183e32336fb9452f55 (diff) | |
| download | linux-stable-899272354dbc1f8ca2d94ea0ddc0174a14fc8324.tar.gz linux-stable-899272354dbc1f8ca2d94ea0ddc0174a14fc8324.tar.bz2 linux-stable-899272354dbc1f8ca2d94ea0ddc0174a14fc8324.zip | |
drm/amdgpu: add UAPI for allocating doorbell memory
This patch adds flags for a new gem domain AMDGPU_GEM_DOMAIN_DOORBELL
in the UAPI layer.
V2: Drop 'memory' from description (Christian)
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Reviewed-by: Christian Koenig <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Diffstat (limited to 'include/uapi/drm/amdgpu_drm.h')
| -rw-r--r-- | include/uapi/drm/amdgpu_drm.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index 79b14828d542..f477eda6a2b8 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -94,6 +94,9 @@ extern "C" { * * %AMDGPU_GEM_DOMAIN_OA Ordered append, used by 3D or Compute engines * for appending data. + * + * %AMDGPU_GEM_DOMAIN_DOORBELL Doorbell. It is an MMIO region for + * signalling user mode queues. */ #define AMDGPU_GEM_DOMAIN_CPU 0x1 #define AMDGPU_GEM_DOMAIN_GTT 0x2 @@ -101,12 +104,14 @@ extern "C" { #define AMDGPU_GEM_DOMAIN_GDS 0x8 #define AMDGPU_GEM_DOMAIN_GWS 0x10 #define AMDGPU_GEM_DOMAIN_OA 0x20 +#define AMDGPU_GEM_DOMAIN_DOORBELL 0x40 #define AMDGPU_GEM_DOMAIN_MASK (AMDGPU_GEM_DOMAIN_CPU | \ AMDGPU_GEM_DOMAIN_GTT | \ AMDGPU_GEM_DOMAIN_VRAM | \ AMDGPU_GEM_DOMAIN_GDS | \ AMDGPU_GEM_DOMAIN_GWS | \ - AMDGPU_GEM_DOMAIN_OA) + AMDGPU_GEM_DOMAIN_OA | \ + AMDGPU_GEM_DOMAIN_DOORBELL) /* Flag that CPU access will be required for the case of VRAM domain */ #define AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED (1 << 0) |