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

Turned out the commit is incomplete and since we remove using the AGP
mapping from the GTT manager it is also not necessary any more.

This reverts commit 22d8bfafcc12dfa17b91d2e8ae4e1898e782003a.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: James Zhu <James.Zhu@amd.com>
Tested-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
index c2539f6821c03de0cfb3f87a7f7e9c84b976673e..da7b1b92d9cf86e1690ece8b97187f8d20e1a193 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
@@ -143,8 +143,7 @@ static int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
        spin_unlock(&mgr->lock);
 
        if (!r)
-               mem->start = node->node.start +
-                       (adev->gmc.gart_start >> PAGE_SHIFT);
+               mem->start = node->node.start;
 
        return r;
 }

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 8a158ee922f73a7c82df42ff351c7d0b72a5797c..f12ae6b525b97962f632db1e5588027603e9290d 100644 (file)
--- 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 = 0;
+               man->gpu_offset = adev->gmc.gart_start;
                man->available_caching = TTM_PL_MASK_CACHING;
                man->default_caching = TTM_PL_FLAG_CACHED;
                man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA;
@@ -1060,7 +1060,7 @@ 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) - adev->gmc.gart_start;
+       gtt->offset = (u64)bo_mem->start << PAGE_SHIFT;
        r = amdgpu_gart_bind(adev, gtt->offset, ttm->num_pages,
                ttm->pages, gtt->ttm.dma_address, flags);
 
@@ -1112,8 +1112,7 @@ 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) -
-                       adev->gmc.gart_start;
+               gtt->offset = (u64)tmp.start << PAGE_SHIFT;
                r = amdgpu_ttm_gart_bind(adev, bo, flags);
                if (unlikely(r)) {
                        ttm_bo_mem_put(bo, &tmp);