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 | |
10 | static 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(size: sizeof(**res), GFP_KERNEL); |
16 | if (!*res) |
17 | return -ENOMEM; |
18 | |
19 | ttm_resource_init(bo, place, res: *res); |
20 | return 0; |
21 | } |
22 | |
23 | static void ttm_sys_man_free(struct ttm_resource_manager *man, |
24 | struct ttm_resource *res) |
25 | { |
26 | ttm_resource_fini(man, res); |
27 | kfree(objp: res); |
28 | } |
29 | |
30 | static const struct ttm_resource_manager_func ttm_sys_manager_func = { |
31 | .alloc = ttm_sys_man_alloc, |
32 | .free = ttm_sys_man_free, |
33 | }; |
34 | |
35 | void ttm_sys_man_init(struct ttm_device *bdev) |
36 | { |
37 | struct ttm_resource_manager *man = &bdev->sysman; |
38 | |
39 | /* |
40 | * Initialize the system memory buffer type. |
41 | * Other types need to be driver / IOCTL initialized. |
42 | */ |
43 | man->use_tt = true; |
44 | man->func = &ttm_sys_manager_func; |
45 | |
46 | ttm_resource_manager_init(man, bdev, size: 0); |
47 | ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, manager: man); |
48 | ttm_resource_manager_set_used(man, used: true); |
49 | } |
50 | |