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| author | Konrad Rzeszutek Wilk | 2010-11-29 19:52:18 +0100 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk | 2011-01-27 22:02:31 +0100 |
| commit | f9820a46dd7888b05a36e81166fb1abcc47dcc3f (patch) | |
| tree | c29e32a8fe8b08bc42120ce66c6536afd5c102df /drivers/gpu/drm/ttm/ttm_tt.c | |
| parent | Linux 2.6.37-rc2 (diff) | |
| download | kernel-qcow2-linux-f9820a46dd7888b05a36e81166fb1abcc47dcc3f.tar.gz kernel-qcow2-linux-f9820a46dd7888b05a36e81166fb1abcc47dcc3f.tar.xz kernel-qcow2-linux-f9820a46dd7888b05a36e81166fb1abcc47dcc3f.zip | |
ttm: Introduce a placeholder for DMA (bus) addresses.
This is right now limited to only non-pool constructs.
[v2: Fixed indentation issues, add review-by tag]
Reviewed-by: Thomas Hellstrom <thomas@shipmail.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Ian Campbell <ian.campbell@citrix.com>
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_tt.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_tt.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index af789dc869b9..0d39001259fb 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -49,12 +49,16 @@ static int ttm_tt_swapin(struct ttm_tt *ttm); static void ttm_tt_alloc_page_directory(struct ttm_tt *ttm) { ttm->pages = drm_calloc_large(ttm->num_pages, sizeof(*ttm->pages)); + ttm->dma_address = drm_calloc_large(ttm->num_pages, + sizeof(*ttm->dma_address)); } static void ttm_tt_free_page_directory(struct ttm_tt *ttm) { drm_free_large(ttm->pages); ttm->pages = NULL; + drm_free_large(ttm->dma_address); + ttm->dma_address = NULL; } static void ttm_tt_free_user_pages(struct ttm_tt *ttm) @@ -105,7 +109,8 @@ static struct page *__ttm_tt_get_page(struct ttm_tt *ttm, int index) INIT_LIST_HEAD(&h); - ret = ttm_get_pages(&h, ttm->page_flags, ttm->caching_state, 1); + ret = ttm_get_pages(&h, ttm->page_flags, ttm->caching_state, 1, + &ttm->dma_address[index]); if (ret != 0) return NULL; @@ -298,7 +303,8 @@ static void ttm_tt_free_alloced_pages(struct ttm_tt *ttm) count++; } } - ttm_put_pages(&h, count, ttm->page_flags, ttm->caching_state); + ttm_put_pages(&h, count, ttm->page_flags, ttm->caching_state, + ttm->dma_address); ttm->state = tt_unpopulated; ttm->first_himem_page = ttm->num_pages; ttm->last_lomem_page = -1; |