diff options
| author | Christian König <christian.koenig@amd.com> | 2017-03-28 16:54:50 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-04-04 23:33:42 -0400 |
| commit | ea642c3216cb2a60d1c0e760ae47ee85c9c16447 (patch) | |
| tree | 8f80acf77ce3e8d80ccabf63e1e9502492c3a42a /include/drm/ttm/ttm_bo_driver.h | |
| parent | 018b7fc3a9ac33ac56310ab301dca402155eee15 (diff) | |
drm/ttm: add io_mem_pfn callback
This allows the driver to handle io_mem mappings on their own.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include/drm/ttm/ttm_bo_driver.h')
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 3641c6128ac2..6bbd34d25a8d 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -462,6 +462,15 @@ struct ttm_bo_driver { struct ttm_mem_reg *mem); void (*io_mem_free)(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem); + + /** + * Return the pfn for a given page_offset inside the BO. + * + * @bo: the BO to look up the pfn for + * @page_offset: the offset to look up + */ + unsigned long (*io_mem_pfn)(struct ttm_buffer_object *bo, + unsigned long page_offset); }; /** |