diff options
| author | Dave Airlie <airlied@redhat.com> | 2008-11-10 15:30:21 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2008-11-10 15:30:21 +1000 |
| commit | 241a9b64141b2dd09449e581017b5ca0c0cc2357 (patch) | |
| tree | 5d7b643a11519c2a512e1442023337baab02ed32 /linux-core/drm_ttm.c | |
| parent | 994f2405030f7f595c4ec6bee524f7c06f27cd7b (diff) | |
drm/radeon: add uncached allocator to drm ttm code.
Diffstat (limited to 'linux-core/drm_ttm.c')
| -rw-r--r-- | linux-core/drm_ttm.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/linux-core/drm_ttm.c b/linux-core/drm_ttm.c index 054a7ce8..4067b9e1 100644 --- a/linux-core/drm_ttm.c +++ b/linux-core/drm_ttm.c @@ -120,14 +120,18 @@ static void drm_ttm_free_page_directory(struct drm_ttm *ttm) ttm->pages = NULL; } -static struct page *drm_ttm_alloc_page(void) +static struct page *drm_ttm_alloc_page(struct drm_ttm *ttm) { struct page *page; if (drm_alloc_memctl(PAGE_SIZE)) return NULL; - page = alloc_page(GFP_KERNEL | __GFP_ZERO | GFP_DMA32); + if (ttm->dev->bm.allocator_type == _DRM_BM_ALLOCATOR_UNCACHED) + page = drm_get_uncached_page(); + else + page = alloc_page(GFP_KERNEL | __GFP_ZERO | GFP_DMA32); + if (!page) { drm_free_memctl(PAGE_SIZE); return NULL; @@ -149,6 +153,9 @@ static int drm_ttm_set_caching(struct drm_ttm *ttm, int noncached) struct page **cur_page; int do_tlbflush = 0; + if (ttm->dev->bm.allocator_type == _DRM_BM_ALLOCATOR_UNCACHED) + return 0; + if ((ttm->page_flags & DRM_TTM_PAGE_UNCACHED) == noncached) return 0; @@ -215,14 +222,18 @@ static void drm_ttm_free_alloced_pages(struct drm_ttm *ttm) for (i = 0; i < ttm->num_pages; ++i) { cur_page = ttm->pages + i; if (*cur_page) { + if (ttm->dev->bm.allocator_type == _DRM_BM_ALLOCATOR_UNCACHED) + drm_put_uncached_page(*cur_page); + else { #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15)) - ClearPageReserved(*cur_page); + ClearPageReserved(*cur_page); #endif - if (page_count(*cur_page) != 1) - DRM_ERROR("Erroneous page count. Leaking pages.\n"); - if (page_mapped(*cur_page)) - DRM_ERROR("Erroneous map count. Leaking page mappings.\n"); - __free_page(*cur_page); + if (page_count(*cur_page) != 1) + DRM_ERROR("Erroneous page count. Leaking pages.\n"); + if (page_mapped(*cur_page)) + DRM_ERROR("Erroneous map count. Leaking page mappings.\n"); + __free_page(*cur_page); + } drm_free_memctl(PAGE_SIZE); --bm->cur_pages; } @@ -268,7 +279,7 @@ struct page *drm_ttm_get_page(struct drm_ttm *ttm, int index) struct drm_buffer_manager *bm = &ttm->dev->bm; while(NULL == (p = ttm->pages[index])) { - p = drm_ttm_alloc_page(); + p = drm_ttm_alloc_page(ttm); if (!p) return NULL; |