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| author | Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> | 2023-04-13 16:22:53 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-04-18 22:28:54 +0200 |
| commit | 4f18b9a6711adbc7c76993c734a94ee3f5c61791 (patch) | |
| tree | 18d76f6c268f1d870253b749c2d68c8c7a081512 /include/uapi/drm/amdgpu_drm.h | |
| parent | drm/amdgpu: Add a max ibs per submission limit. (diff) | |
| download | linux-4f18b9a6711adbc7c76993c734a94ee3f5c61791.tar.xz linux-4f18b9a6711adbc7c76993c734a94ee3f5c61791.zip | |
drm/amdgpu: Add support for querying the max ibs in a submission. (v3)
This info would be used by radv to figure out when we need to
split a submission into multiple submissions. radv currently has
a limit of 192 which seems to work for most gfx submissions, but
is way too high for e.g. compute or sdma.
Userspace is available at
https://gitlab.freedesktop.org/bnieuwenhuizen/mesa/-/commits/ib-rejection-v3
v3: Completely rewrote based on suggestion of making it a separate query.
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2498
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include/uapi/drm/amdgpu_drm.h')
| -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 b6eb90df5d05..6981e59a9401 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -876,6 +876,8 @@ struct drm_amdgpu_cs_chunk_data { #define AMDGPU_INFO_VIDEO_CAPS_DECODE 0 /* Subquery id: Encode */ #define AMDGPU_INFO_VIDEO_CAPS_ENCODE 1 +/* Query the max number of IBs per gang per submission */ +#define AMDGPU_INFO_MAX_IBS 0x22 #define AMDGPU_INFO_MMR_SE_INDEX_SHIFT 0 #define AMDGPU_INFO_MMR_SE_INDEX_MASK 0xff |