diff options
Diffstat (limited to 'linux-core')
| -rw-r--r-- | linux-core/drm_objects.h | 2 | ||||
| -rw-r--r-- | linux-core/drm_ttm.c | 21 |
2 files changed, 12 insertions, 11 deletions
diff --git a/linux-core/drm_objects.h b/linux-core/drm_objects.h index 8055afe1..69a5c27f 100644 --- a/linux-core/drm_objects.h +++ b/linux-core/drm_objects.h @@ -384,7 +384,7 @@ extern int drm_ttm_destroy(struct drm_ttm *ttm); * The array of page pointers was allocated with vmalloc * instead of drm_calloc. */ -#define DRM_TTM_PAGE_VMALLOC (1 << 4) +#define DRM_TTM_PAGEDIR_VMALLOC (1 << 4) /* * This ttm is mapped from user space */ diff --git a/linux-core/drm_ttm.c b/linux-core/drm_ttm.c index a9d87338..cc80b132 100644 --- a/linux-core/drm_ttm.c +++ b/linux-core/drm_ttm.c @@ -42,11 +42,12 @@ void drm_ttm_cache_flush(void) } EXPORT_SYMBOL(drm_ttm_cache_flush); -/* - * Use kmalloc if possible. Otherwise fall back to vmalloc. +/** + * Allocates storage for pointers to the pages that back the ttm. + * + * Uses kmalloc if possible. Otherwise falls back to vmalloc. */ - -static void drm_ttm_alloc_pages(struct drm_ttm *ttm) +static void drm_ttm_alloc_page_directory(struct drm_ttm *ttm) { unsigned long size = ttm->num_pages * sizeof(*ttm->pages); ttm->pages = NULL; @@ -60,19 +61,19 @@ static void drm_ttm_alloc_pages(struct drm_ttm *ttm) if (!ttm->pages) { ttm->pages = vmalloc_user(size); if (ttm->pages) - ttm->page_flags |= DRM_TTM_PAGE_VMALLOC; + ttm->page_flags |= DRM_TTM_PAGEDIR_VMALLOC; } if (!ttm->pages) drm_free_memctl(size); } -static void drm_ttm_free_pages(struct drm_ttm *ttm) +static void drm_ttm_free_page_directory(struct drm_ttm *ttm) { unsigned long size = ttm->num_pages * sizeof(*ttm->pages); - if (ttm->page_flags & DRM_TTM_PAGE_VMALLOC) { + if (ttm->page_flags & DRM_TTM_PAGEDIR_VMALLOC) { vfree(ttm->pages); - ttm->page_flags &= ~DRM_TTM_PAGE_VMALLOC; + ttm->page_flags &= ~DRM_TTM_PAGEDIR_VMALLOC; } else { drm_free(ttm->pages, size, DRM_MEM_TTM); } @@ -215,7 +216,7 @@ int drm_ttm_destroy(struct drm_ttm *ttm) else drm_ttm_free_alloced_pages(ttm); - drm_ttm_free_pages(ttm); + drm_ttm_free_page_directory(ttm); } drm_ctl_free(ttm, sizeof(*ttm), DRM_MEM_TTM); @@ -349,7 +350,7 @@ struct drm_ttm *drm_ttm_create(struct drm_device *dev, unsigned long size, * Account also for AGP module memory usage. */ - drm_ttm_alloc_pages(ttm); + drm_ttm_alloc_page_directory(ttm); if (!ttm->pages) { drm_ttm_destroy(ttm); DRM_ERROR("Failed allocating page table\n"); |