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>

2 files changed, 5 insertions, 4 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
index da7b1b92d9cf..c2539f6821c0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
@@ -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;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 2f304f9dd543..5cadf4f1ee2c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -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);