diff options
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_tt.c | 23 | ||||
| -rw-r--r-- | include/drm/drmP.h | 34 | ||||
| -rw-r--r-- | include/drm/drm_mem_util.h | 65 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 1 |
4 files changed, 69 insertions, 54 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index a759170763bb..bab6cd8d8a1e 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -28,13 +28,13 @@ * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com> */ -#include <linux/vmalloc.h> #include <linux/sched.h> #include <linux/highmem.h> #include <linux/pagemap.h> #include <linux/file.h> #include <linux/swap.h> #include "drm_cache.h" +#include "drm_mem_util.h" #include "ttm/ttm_module.h" #include "ttm/ttm_bo_driver.h" #include "ttm/ttm_placement.h" @@ -43,32 +43,15 @@ static int ttm_tt_swapin(struct ttm_tt *ttm); /** * Allocates storage for pointers to the pages that back the ttm. - * - * Uses kmalloc if possible. Otherwise falls back to vmalloc. */ static void ttm_tt_alloc_page_directory(struct ttm_tt *ttm) { - unsigned long size = ttm->num_pages * sizeof(*ttm->pages); - ttm->pages = NULL; - - if (size <= PAGE_SIZE) - ttm->pages = kzalloc(size, GFP_KERNEL); - - if (!ttm->pages) { - ttm->pages = vmalloc_user(size); - if (ttm->pages) - ttm->page_flags |= TTM_PAGE_FLAG_VMALLOC; - } + ttm->pages = drm_calloc_large(ttm->num_pages, sizeof(*ttm->pages)); } static void ttm_tt_free_page_directory(struct ttm_tt *ttm) { - if (ttm->page_flags & TTM_PAGE_FLAG_VMALLOC) { - vfree(ttm->pages); - ttm->page_flags &= ~TTM_PAGE_FLAG_VMALLOC; - } else { - kfree(ttm->pages); - } + drm_free_large(ttm->pages); ttm->pages = NULL; } diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 4a3c4e441027..de2f82efb15f 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1545,39 +1545,7 @@ static __inline__ void drm_core_dropmap(struct drm_local_map *map) { } - -static __inline__ void *drm_calloc_large(size_t nmemb, size_t size) -{ - if (size != 0 && nmemb > ULONG_MAX / size) - return NULL; - - if (size * nmemb <= PAGE_SIZE) - return kcalloc(nmemb, size, GFP_KERNEL); - - return __vmalloc(size * nmemb, - GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL); -} - -/* Modeled after cairo's malloc_ab, it's like calloc but without the zeroing. */ -static __inline__ void *drm_malloc_ab(size_t nmemb, size_t size) -{ - if (size != 0 && nmemb > ULONG_MAX / size) - return NULL; - - if (size * nmemb <= PAGE_SIZE) - return kmalloc(nmemb * size, GFP_KERNEL); - - return __vmalloc(size * nmemb, - GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL); -} - -static __inline void drm_free_large(void *ptr) -{ - if (!is_vmalloc_addr(ptr)) - return kfree(ptr); - - vfree(ptr); -} +#include "drm_mem_util.h" /*@}*/ #endif /* __KERNEL__ */ diff --git a/include/drm/drm_mem_util.h b/include/drm/drm_mem_util.h new file mode 100644 index 000000000000..6bd325fedc87 --- /dev/null +++ b/include/drm/drm_mem_util.h @@ -0,0 +1,65 @@ +/* + * Copyright © 2008 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Authors: + * Jesse Barnes <jbarnes@virtuousgeek.org> + * + */ +#ifndef _DRM_MEM_UTIL_H_ +#define _DRM_MEM_UTIL_H_ + +#include <linux/vmalloc.h> + +static __inline__ void *drm_calloc_large(size_t nmemb, size_t size) +{ + if (size != 0 && nmemb > ULONG_MAX / size) + return NULL; + + if (size * nmemb <= PAGE_SIZE) + return kcalloc(nmemb, size, GFP_KERNEL); + + return __vmalloc(size * nmemb, + GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL); +} + +/* Modeled after cairo's malloc_ab, it's like calloc but without the zeroing. */ +static __inline__ void *drm_malloc_ab(size_t nmemb, size_t size) +{ + if (size != 0 && nmemb > ULONG_MAX / size) + return NULL; + + if (size * nmemb <= PAGE_SIZE) + return kmalloc(nmemb * size, GFP_KERNEL); + + return __vmalloc(size * nmemb, + GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL); +} + +static __inline void drm_free_large(void *ptr) +{ + if (!is_vmalloc_addr(ptr)) + return kfree(ptr); + + vfree(ptr); +} + +#endif diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index e3f1b4a4b601..e929c27ede22 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -115,7 +115,6 @@ struct ttm_backend { struct ttm_backend_func *func; }; -#define TTM_PAGE_FLAG_VMALLOC (1 << 0) #define TTM_PAGE_FLAG_USER (1 << 1) #define TTM_PAGE_FLAG_USER_DIRTY (1 << 2) #define TTM_PAGE_FLAG_WRITE (1 << 3) |