drm/vram: Add infrastructure for move_notify() (f3309105) · Commits · 戴 / test

drivers/gpu/drm/drm_vram_mm_helper.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -98,6 +98,17 @@ static int bo_driver_verify_access(struct ttm_buffer_object *bo,
		return vmm->funcs->verify_access(bo, filp);
		}

		static void bo_driver_move_notify(struct ttm_buffer_object *bo,
		bool evict,
		struct ttm_mem_reg *new_mem)
		{
		struct drm_vram_mm *vmm = drm_vram_mm_of_bdev(bo->bdev);

		if (!vmm->funcs \|\| !vmm->funcs->move_notify)
		return;
		vmm->funcs->move_notify(bo, evict, new_mem);
		}

		static int bo_driver_io_mem_reserve(struct ttm_bo_device *bdev,
		struct ttm_mem_reg *mem)
		{
		@@ -140,6 +151,7 @@ static struct ttm_bo_driver bo_driver = {
		.eviction_valuable = ttm_bo_eviction_valuable,
		.evict_flags = bo_driver_evict_flags,
		.verify_access = bo_driver_verify_access,
		.move_notify = bo_driver_move_notify,
		.io_mem_reserve = bo_driver_io_mem_reserve,
		.io_mem_free = bo_driver_io_mem_free,
		};

+4 −0

Original line number	Diff line number	Diff line
		@@ -15,6 +15,8 @@ struct drm_device;
		&ttm_bo_driver.evict_flags
		* @verify_access: Provides an implementation for \
		struct &ttm_bo_driver.verify_access
		* @move_notify: Provides an implementation for
		* struct &ttm_bo_driver.move_notify
		*
		* These callback function integrate VRAM MM with TTM buffer objects. New
		* functions can be added if necessary.
		@@ -23,6 +25,8 @@ struct drm_vram_mm_funcs {
		void (evict_flags)(struct ttm_buffer_object bo,
		struct ttm_placement *placement);
		int (verify_access)(struct ttm_buffer_object bo, struct file *filp);
		void (move_notify)(struct ttm_buffer_object bo, bool evict,
		struct ttm_mem_reg *new_mem);
		};

		/**