diff options
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_agp_backend.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_agp_backend.c | 50 |
1 files changed, 22 insertions, 28 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_agp_backend.c b/drivers/gpu/drm/ttm/ttm_agp_backend.c index 09fe80e215c5..03c86628e4ac 100644 --- a/drivers/gpu/drm/ttm/ttm_agp_backend.c +++ b/drivers/gpu/drm/ttm/ttm_agp_backend.c @@ -34,7 +34,6 @@ #include <drm/ttm/ttm_module.h> #include <drm/ttm/ttm_bo_driver.h> -#include <drm/ttm/ttm_page_alloc.h> #include <drm/ttm/ttm_placement.h> #include <linux/agp_backend.h> #include <linux/module.h> @@ -48,15 +47,18 @@ struct ttm_agp_backend { struct agp_bridge_data *bridge; }; -static int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_resource *bo_mem) +int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_resource *bo_mem) { struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm); struct page *dummy_read_page = ttm_bo_glob.dummy_read_page; struct drm_mm_node *node = bo_mem->mm_node; struct agp_memory *mem; - int ret, cached = (bo_mem->placement & TTM_PL_FLAG_CACHED); + int ret, cached = ttm->caching == ttm_cached; unsigned i; + if (agp_be->mem) + return 0; + mem = agp_allocate_memory(agp_be->bridge, ttm->num_pages, AGP_USER_MEMORY); if (unlikely(mem == NULL)) return -ENOMEM; @@ -81,8 +83,9 @@ static int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_resource *bo_mem) return ret; } +EXPORT_SYMBOL(ttm_agp_bind); -static void ttm_agp_unbind(struct ttm_tt *ttm) +void ttm_agp_unbind(struct ttm_tt *ttm) { struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm); @@ -95,8 +98,20 @@ static void ttm_agp_unbind(struct ttm_tt *ttm) agp_be->mem = NULL; } } +EXPORT_SYMBOL(ttm_agp_unbind); + +bool ttm_agp_is_bound(struct ttm_tt *ttm) +{ + struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm); + + if (!ttm) + return false; + + return (agp_be->mem != NULL); +} +EXPORT_SYMBOL(ttm_agp_is_bound); -static void ttm_agp_destroy(struct ttm_tt *ttm) +void ttm_agp_destroy(struct ttm_tt *ttm) { struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm); @@ -105,12 +120,7 @@ static void ttm_agp_destroy(struct ttm_tt *ttm) ttm_tt_fini(ttm); kfree(agp_be); } - -static struct ttm_backend_func ttm_agp_func = { - .bind = ttm_agp_bind, - .unbind = ttm_agp_unbind, - .destroy = ttm_agp_destroy, -}; +EXPORT_SYMBOL(ttm_agp_destroy); struct ttm_tt *ttm_agp_tt_create(struct ttm_buffer_object *bo, struct agp_bridge_data *bridge, @@ -124,9 +134,8 @@ struct ttm_tt *ttm_agp_tt_create(struct ttm_buffer_object *bo, agp_be->mem = NULL; agp_be->bridge = bridge; - agp_be->ttm.func = &ttm_agp_func; - if (ttm_tt_init(&agp_be->ttm, bo, page_flags)) { + if (ttm_tt_init(&agp_be->ttm, bo, page_flags, ttm_write_combined)) { kfree(agp_be); return NULL; } @@ -134,18 +143,3 @@ struct ttm_tt *ttm_agp_tt_create(struct ttm_buffer_object *bo, return &agp_be->ttm; } EXPORT_SYMBOL(ttm_agp_tt_create); - -int ttm_agp_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx) -{ - if (ttm->state != tt_unpopulated) - return 0; - - return ttm_pool_populate(ttm, ctx); -} -EXPORT_SYMBOL(ttm_agp_tt_populate); - -void ttm_agp_tt_unpopulate(struct ttm_tt *ttm) -{ - ttm_pool_unpopulate(ttm); -} -EXPORT_SYMBOL(ttm_agp_tt_unpopulate); |