diff options
| author | Ramalingam C <ramalingam.c@intel.com> | 2022-04-01 18:07:49 +0530 |
|---|---|---|
| committer | Ramalingam C <ramalingam.c@intel.com> | 2022-04-02 08:22:48 +0530 |
| commit | e36764ecf87cb86051f26cc8e5a9a665784a9f39 (patch) | |
| tree | f5812afeb677afe296b21b3315e2b0b664170107 /include/drm/ttm | |
| parent | ab0609a5fb301b035702171c04b3ee532682b726 (diff) | |
| download | linux-e36764ecf87cb86051f26cc8e5a9a665784a9f39.tar.bz2 | |
drm/ttm: Add a parameter to add extra pages into ttm_tt
Add a parameter called "extra_pages" for ttm_tt_init, to indicate that
driver needs extra pages in ttm_tt.
v2:
Used imperative wording [Thomas and Christian]
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
cc: Christian Koenig <christian.koenig@amd.com>
cc: Hellstrom Thomas <thomas.hellstrom@intel.com>
Reviewed-by: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Reviewed-by: Christian Konig <christian.koenig@amd.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220401123751.27771-8-ramalingam.c@intel.com
Diffstat (limited to 'include/drm/ttm')
| -rw-r--r-- | include/drm/ttm/ttm_tt.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h index f20832139815..17a0310e8aaa 100644 --- a/include/drm/ttm/ttm_tt.h +++ b/include/drm/ttm/ttm_tt.h @@ -140,6 +140,7 @@ int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc); * @bo: The buffer object we create the ttm for. * @page_flags: Page flags as identified by TTM_TT_FLAG_XX flags. * @caching: the desired caching state of the pages + * @extra_pages: Extra pages needed for the driver. * * Create a struct ttm_tt to back data with system memory pages. * No pages are actually allocated. @@ -147,7 +148,8 @@ int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc); * NULL: Out of memory. */ int ttm_tt_init(struct ttm_tt *ttm, struct ttm_buffer_object *bo, - uint32_t page_flags, enum ttm_caching caching); + uint32_t page_flags, enum ttm_caching caching, + unsigned long extra_pages); int ttm_sg_tt_init(struct ttm_tt *ttm_dma, struct ttm_buffer_object *bo, uint32_t page_flags, enum ttm_caching caching); |