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| author |   Christian König <christian.koenig@amd.com> | 2019-08-30 14:38:37 +0200 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-09-13 17:38:47 -0500 |
| commit | 9d1b3c78052e87fbb1beb7912bf5b2d5b19f2c2c (patch) | |
| tree | 97e0eecfc0208ade51ca59fcf1a6317b9de79d16 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | |
| parent | drm/amdgpu: use moving fence instead of exclusive for VM updates (diff) | |
| download | wireguard-linux-9d1b3c78052e87fbb1beb7912bf5b2d5b19f2c2c.tar.xz wireguard-linux-9d1b3c78052e87fbb1beb7912bf5b2d5b19f2c2c.zip | |
drm/amdgpu: reserve at least 4MB of VRAM for page tables v2
This hopefully helps reduce the contention for page tables.
v2: adjust maximum reported VRAM size as well
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 2eda3a8c330d..3352a87b822e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -99,6 +99,9 @@ struct amdgpu_bo_list_entry; #define AMDGPU_VM_FAULT_STOP_FIRST 1 #define AMDGPU_VM_FAULT_STOP_ALWAYS 2 +/* Reserve 4MB VRAM for page tables */ +#define AMDGPU_VM_RESERVED_VRAM (4ULL << 20) + /* max number of VMHUB */ #define AMDGPU_MAX_VMHUBS 3 #define AMDGPU_GFXHUB_0 0 |