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drm/amdgpu: stop using gart_start as offset for the GTT domain 

Further separate GART and GTT domain.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-08-27 13:12:19 +02:00 committed by Alex Deucher
parent 0be655d1c6
commit 22d8bfafcc
2 changed files with 5 additions and 4 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
View File

@ -143,7 +143,8 @@ static int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
spin_unlock(&mgr->lock);
if (!r)
mem->start = node->node.start;
mem->start = node->node.start +
(adev->gmc.gart_start >> PAGE_SHIFT);
return r;
}

6
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -188,7 +188,7 @@ static int amdgpu_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
case TTM_PL_TT:
/* GTT memory */
man->func = &amdgpu_gtt_mgr_func;
man->gpu_offset = adev->gmc.gart_start;
man->gpu_offset = 0;
man->available_caching = TTM_PL_MASK_CACHING;
man->default_caching = TTM_PL_FLAG_CACHED;
man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
@ -1062,7 +1062,7 @@ static int amdgpu_ttm_backend_bind(struct ttm_tt *ttm,
flags = amdgpu_ttm_tt_pte_flags(adev, ttm, bo_mem);
/* bind pages into GART page tables */
gtt->offset = (u64)bo_mem->start << PAGE_SHIFT;
gtt->offset = ((u64)bo_mem->start << PAGE_SHIFT) - adev->gmc.gart_start;
r = amdgpu_gart_bind(adev, gtt->offset, ttm->num_pages,
ttm->pages, gtt->ttm.dma_address, flags);
@ -1110,7 +1110,7 @@ int amdgpu_ttm_alloc_gart(struct ttm_buffer_object *bo)
flags = amdgpu_ttm_tt_pte_flags(adev, bo->ttm, &tmp);
/* Bind pages */
gtt->offset = (u64)tmp.start << PAGE_SHIFT;
gtt->offset = ((u64)tmp.start << PAGE_SHIFT) - adev->gmc.gart_start;
r = amdgpu_ttm_gart_bind(adev, bo, flags);
if (unlikely(r)) {
ttm_bo_mem_put(bo, &tmp);