1/* SPDX-License-Identifier: GPL-2.0 OR MIT */
 2
 3#include <drm/ttm/ttm_resource.h>
 4#include <drm/ttm/ttm_device.h>
 5#include <drm/ttm/ttm_placement.h>
 6#include <linux/slab.h>
 7
 8#include "ttm_module.h"
 9
10static int ttm_sys_man_alloc(struct ttm_resource_manager *man,
11			     struct ttm_buffer_object *bo,
12			     const struct ttm_place *place,
13			     struct ttm_resource **res)
14{
15	*res = kzalloc(sizeof(**res), GFP_KERNEL);
16	if (!*res)
17		return -ENOMEM;
18
19	ttm_resource_init(bo, place, *res);
20	return 0;
21}
22
23static void ttm_sys_man_free(struct ttm_resource_manager *man,
24			     struct ttm_resource *res)
25{
26	kfree(res);
27}
28
29static const struct ttm_resource_manager_func ttm_sys_manager_func = {
30	.alloc = ttm_sys_man_alloc,
31	.free = ttm_sys_man_free,
32};
33
34void ttm_sys_man_init(struct ttm_device *bdev)
35{
36	struct ttm_resource_manager *man = &bdev->sysman;
37
38	/*
39	 * Initialize the system memory buffer type.
40	 * Other types need to be driver / IOCTL initialized.
41	 */
42	man->use_tt = true;
43	man->func = &ttm_sys_manager_func;
44
45	ttm_resource_manager_init(man, 0);
46	ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, man);
47	ttm_resource_manager_set_used(man, true);
48}