diff options
| author | xinhui pan <xinhui.pan@amd.com> | 2021-06-16 12:32:34 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-06-18 17:01:35 -0400 |
| commit | 84408d5f3892534da9e8e5d5b21126c91f8cac1a (patch) | |
| tree | 0e59a44377b3ce31ab0abdfd0bfd8ca120906279 /drivers/gpu/drm/amd | |
| parent | d472b36efbf8a27dc8a80519db8b5a8caffe42b6 (diff) | |
drm/amdgpu: Set TTM_PAGE_FLAG_SG earlier for userprt BOs
Because TTM do page counting on userptr BOs which is actually not
needed. To avoid that, lets set TTM_PAGE_FLAG_SG after tt_create and
before tt_populate.
Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 80dff29f2bc7..43421bd9d801 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1129,8 +1129,6 @@ static int amdgpu_ttm_tt_populate(struct ttm_device *bdev, ttm->sg = kzalloc(sizeof(struct sg_table), GFP_KERNEL); if (!ttm->sg) return -ENOMEM; - - ttm->page_flags |= TTM_PAGE_FLAG_SG; return 0; } @@ -1156,7 +1154,6 @@ static void amdgpu_ttm_tt_unpopulate(struct ttm_device *bdev, amdgpu_ttm_tt_set_user_pages(ttm, NULL); kfree(ttm->sg); ttm->sg = NULL; - ttm->page_flags &= ~TTM_PAGE_FLAG_SG; return; } @@ -1190,6 +1187,9 @@ int amdgpu_ttm_tt_set_userptr(struct ttm_buffer_object *bo, return -ENOMEM; } + /* Set TTM_PAGE_FLAG_SG before populate but after create. */ + bo->ttm->page_flags |= TTM_PAGE_FLAG_SG; + gtt = (void *)bo->ttm; gtt->userptr = addr; gtt->userflags = flags; |