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| author | Alex Deucher <alexander.deucher@amd.com> | 2025-01-30 23:12:58 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-02-13 05:04:08 +0300 |
| commit | 8b0d068e7dd177eca506d908622095b4a6c9d168 (patch) | |
| tree | 0d7f30b5f4b5639f942361b0406941031df6ca4c /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | cc0e91a75533d76def12f2bedb95b00a8f70cebc (diff) | |
| download | linux-8b0d068e7dd177eca506d908622095b4a6c9d168.tar.xz | |
drm/amdkfd: add a new flag to manage where VRAM allocations go
On big and small APUs we send KFD VRAM allocations to GTT
since the carve out is either non-existent or relatively
small. However, if someone sets the carve out size to be
relatively large, we may end up using GTT rather than VRAM.
No change of logic with this patch, but it allows the
driver to determine which logic to use based on the
carve out size in the future.
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index f86daad4c77e..0dbea25ab888 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1193,6 +1193,11 @@ struct amdgpu_device { struct mutex enforce_isolation_mutex; struct amdgpu_init_level *init_lvl; + + /* This flag is used to determine how VRAM allocations are handled for APUs + * in KFD: VRAM or GTT. + */ + bool apu_prefer_gtt; }; static inline uint32_t amdgpu_ip_version(const struct amdgpu_device *adev, |