1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
#include <drm/ttm/ttm_resource.h>
#include <drm/ttm/ttm_device.h>
#include <drm/ttm/ttm_placement.h>
#include <linux/slab.h>
#include "ttm_module.h"
static int ttm_sys_man_alloc(struct ttm_resource_manager *man,
struct ttm_buffer_object *bo,
const struct ttm_place *place,
struct ttm_resource **res)
{
*res = kzalloc(sizeof(**res), GFP_KERNEL);
if (!*res)
return -ENOMEM;
ttm_resource_init(bo, place, *res);
return 0;
}
static void ttm_sys_man_free(struct ttm_resource_manager *man,
struct ttm_resource *res)
{
ttm_resource_fini(man, res);
kfree(res);
}
static const struct ttm_resource_manager_func ttm_sys_manager_func = {
.alloc = ttm_sys_man_alloc,
.free = ttm_sys_man_free,
};
void ttm_sys_man_init(struct ttm_device *bdev)
{
struct ttm_resource_manager *man = &bdev->sysman;
/*
* Initialize the system memory buffer type.
* Other types need to be driver / IOCTL initialized.
*/
man->use_tt = true;
man->func = &ttm_sys_manager_func;
ttm_resource_manager_init(man, bdev, 0);
ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, man);
ttm_resource_manager_set_used(man, true);
}
|
