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drm/amdgpu: accommodate DOMAIN/PL_DOORBELL

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This patch adds changes:
- to accommodate the new GEM domain for DOORBELLs
- to accommodate the new TTM PL for DOORBELLs

in order to manage doorbell pages as GEM object.

V2: Addressed reviwe comments from Christian
    - drop the doorbell changes for pinning/unpinning
    - drop the doorbell changes for dma-buf map
    - drop the doorbell changes for sgt
    - no need to handle TTM_PL_FLAG_CONTIGUOUS for doorbell
    - add caching type for doorbell

V3: - Removed unrelated empty line (Christian)
    - Add PL_DOORBELL in mem_type_to_domain() as well (Alex)

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>
This commit is contained in:
Alex Deucher
2023-07-14 15:11:26 +02:00
parent 05c899eacc
commit dc3499c71d
5 changed files with 30 additions and 2 deletions
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11
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
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@@ -158,6 +158,14 @@ void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain)
c++;
}
if (domain & AMDGPU_GEM_DOMAIN_DOORBELL) {
places[c].fpfn = 0;
places[c].lpfn = 0;
places[c].mem_type = AMDGPU_PL_DOORBELL;
places[c].flags = 0;
c++;
}
if (domain & AMDGPU_GEM_DOMAIN_GTT) {
places[c].fpfn = 0;
places[c].lpfn = 0;
@@ -477,7 +485,7 @@ static bool amdgpu_bo_validate_size(struct amdgpu_device *adev,
goto fail;
}
/* TODO add more domains checks, such as AMDGPU_GEM_DOMAIN_CPU */
/* TODO add more domains checks, such as AMDGPU_GEM_DOMAIN_CPU, _DOMAIN_DOORBELL */
return true;
fail:
@@ -1029,6 +1037,7 @@ void amdgpu_bo_unpin(struct amdgpu_bo *bo)
} else if (bo->tbo.resource->mem_type == TTM_PL_TT) {
atomic64_sub(amdgpu_bo_size(bo), &adev->gart_pin_size);
}
}
static const char * const amdgpu_vram_names[] = {