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drm/amdgpu/ttm: Use GART helper to map VRAM pages (v2)

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Use the GART helper function introduced in the previous commit
to map the VRAM pages of the transfer window to GART.
No functional changes, just code cleanup.

Split this into a separate commit to make it easier to bisect,
in case there are problems in the future.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Timur Kristóf
2025-11-07 16:57:36 +01:00
committed by Alex Deucher
parent 15bd4958fe
commit 43a0ca334e
1 changed files with 2 additions and 10 deletions
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12
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@@ -188,7 +188,6 @@ static int amdgpu_ttm_map_buffer(struct ttm_buffer_object *bo,
struct amdgpu_job *job;
void *cpu_addr;
uint64_t flags;
unsigned int i;
int r;
BUG_ON(adev->mman.buffer_funcs->copy_max_bytes <
@@ -255,16 +254,9 @@ static int amdgpu_ttm_map_buffer(struct ttm_buffer_object *bo,
dma_addr = &bo->ttm->dma_address[mm_cur->start >> PAGE_SHIFT];
amdgpu_gart_map(adev, 0, num_pages, dma_addr, flags, cpu_addr);
} else {
dma_addr_t dma_address;
u64 pa = mm_cur->start + adev->vm_manager.vram_base_offset;
dma_address = mm_cur->start;
dma_address += adev->vm_manager.vram_base_offset;
for (i = 0; i < num_pages; ++i) {
amdgpu_gart_map(adev, i << PAGE_SHIFT, 1, &dma_address,
flags, cpu_addr);
dma_address += PAGE_SIZE;
}
amdgpu_gart_map_vram_range(adev, pa, 0, num_pages, flags, cpu_addr);
}
dma_fence_put(amdgpu_job_submit(job));