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drm/amdgpu: add vram reservation based on vram_usagebyfirmware_v2_2

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Move TMR region from top of FB to 2MB for FFBM, so we need to
reserve TMR region firstly to make sure TMR can be allocated at 2MB

Signed-off-by: Tong Liu01 <Tong.Liu01@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tong Liu01
2022-11-10 17:31:36 +08:00
committed by Alex Deucher
parent 3e93136809
commit 4864f2ee9e
4 changed files with 191 additions and 32 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
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@@ -84,6 +84,11 @@ struct amdgpu_mman {
struct amdgpu_bo *fw_vram_usage_reserved_bo;
void *fw_vram_usage_va;
/* driver VRAM reservation */
u64 drv_vram_usage_start_offset;
u64 drv_vram_usage_size;
struct amdgpu_bo *drv_vram_usage_reserved_bo;
/* PAGE_SIZE'd BO for process memory r/w over SDMA. */
struct amdgpu_bo *sdma_access_bo;
void *sdma_access_ptr;