diff options
| author | Keith Packard <keithp@keithp.com> | 2007-12-16 01:12:07 -0800 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2007-12-21 12:16:29 -0800 |
| commit | 881ee70ab7bab5d6f6140dc9bf1e19c7b5844084 (patch) | |
| tree | 9048804d2930a7ff8c3cf77dfd9488a81668a9ae /linux-core/drm_ttm.c | |
| parent | 6d44f48002c19d67187adb660ef74dd1870d52c2 (diff) | |
Move dummy_read_page from drm_ttm_set_user to drm_ttm_create.
I'm hoping to use the dummy_read_page for kernel allocated buffers to avoid
allocating extra pages for read-only buffers (like vertex and batch buffers).
This also eliminates the 'write' parameter to drm_ttm_set_user and just
has DRM_TTM_PAGE_WRITE passed into drm_ttm_create.
Diffstat (limited to 'linux-core/drm_ttm.c')
| -rw-r--r-- | linux-core/drm_ttm.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/linux-core/drm_ttm.c b/linux-core/drm_ttm.c index e3b9fcce..c1fc13fc 100644 --- a/linux-core/drm_ttm.c +++ b/linux-core/drm_ttm.c @@ -145,7 +145,7 @@ static void drm_ttm_free_user_pages(struct drm_ttm *ttm) int i; BUG_ON(!(ttm->page_flags & DRM_TTM_PAGE_USER)); - write = ((ttm->page_flags & DRM_TTM_PAGE_USER_WRITE) != 0); + write = ((ttm->page_flags & DRM_TTM_PAGE_WRITE) != 0); dirty = ((ttm->page_flags & DRM_TTM_PAGE_USER_DIRTY) != 0); for (i = 0; i < ttm->num_pages; ++i) { @@ -257,22 +257,17 @@ EXPORT_SYMBOL(drm_ttm_get_page); */ int drm_ttm_set_user(struct drm_ttm *ttm, struct task_struct *tsk, - int write, unsigned long start, - unsigned long num_pages, - struct page *dummy_read_page) + unsigned long num_pages) { struct mm_struct *mm = tsk->mm; int ret; int i; + int write = (ttm->page_flags & DRM_TTM_PAGE_WRITE) != 0; BUG_ON(num_pages != ttm->num_pages); BUG_ON((ttm->page_flags & DRM_TTM_PAGE_USER) == 0); - ttm->dummy_read_page = dummy_read_page; - if (write) - ttm->page_flags |= DRM_TTM_PAGE_USER_WRITE; - down_read(&mm->mmap_sem); ret = get_user_pages(tsk, mm, start, num_pages, write, 0, ttm->pages, NULL); @@ -331,7 +326,8 @@ int drm_ttm_populate(struct drm_ttm *ttm) * Allocate and initialize a ttm, leaving it unpopulated at this time */ -struct drm_ttm *drm_ttm_create(struct drm_device *dev, unsigned long size, uint32_t page_flags) +struct drm_ttm *drm_ttm_create(struct drm_device *dev, unsigned long size, + uint32_t page_flags, struct page *dummy_read_page) { struct drm_bo_driver *bo_driver = dev->driver->bo_driver; struct drm_ttm *ttm; @@ -351,6 +347,8 @@ struct drm_ttm *drm_ttm_create(struct drm_device *dev, unsigned long size, uint3 ttm->page_flags = page_flags; + ttm->dummy_read_page = dummy_read_page; + /* * Account also for AGP module memory usage. */ |