1/* SPDX-License-Identifier: GPL-2.0 OR MIT */
 2/*
 3 * Copyright 2021 VMware, Inc.
 4 *
 5 * Permission is hereby granted, free of charge, to any person
 6 * obtaining a copy of this software and associated documentation
 7 * files (the "Software"), to deal in the Software without
 8 * restriction, including without limitation the rights to use, copy,
 9 * modify, merge, publish, distribute, sublicense, and/or sell copies
10 * of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
20 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
21 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 */
26
27#include "vmwgfx_drv.h"
28
 
29#include <drm/ttm/ttm_device.h>
30#include <drm/ttm/ttm_placement.h>
31#include <drm/ttm/ttm_resource.h>
32#include <linux/slab.h>
33
34
35static int vmw_sys_man_alloc(struct ttm_resource_manager *man,
36			     struct ttm_buffer_object *bo,
37			     const struct ttm_place *place,
38			     struct ttm_resource **res)
39{
40	*res = kzalloc(sizeof(**res), GFP_KERNEL);
41	if (!*res)
42		return -ENOMEM;
43
44	ttm_resource_init(bo, place, *res);
45	return 0;
46}
47
48static void vmw_sys_man_free(struct ttm_resource_manager *man,
49			     struct ttm_resource *res)
50{
51	ttm_resource_fini(man, res);
52	kfree(res);
53}
54
55static const struct ttm_resource_manager_func vmw_sys_manager_func = {
56	.alloc = vmw_sys_man_alloc,
57	.free = vmw_sys_man_free,
58};
59
60int vmw_sys_man_init(struct vmw_private *dev_priv)
61{
62	struct ttm_device *bdev = &dev_priv->bdev;
63	struct ttm_resource_manager *man =
64			kzalloc(sizeof(*man), GFP_KERNEL);
65
66	if (!man)
67		return -ENOMEM;
68
69	man->use_tt = true;
70	man->func = &vmw_sys_manager_func;
71
72	ttm_resource_manager_init(man, bdev, 0);
73	ttm_set_driver_manager(bdev, VMW_PL_SYSTEM, man);
74	ttm_resource_manager_set_used(man, true);
75	return 0;
76}
77
78void vmw_sys_man_fini(struct vmw_private *dev_priv)
79{
80	struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev,
81							    VMW_PL_SYSTEM);
82
83	ttm_resource_manager_evict_all(&dev_priv->bdev, man);
84
85	ttm_resource_manager_set_used(man, false);
86	ttm_resource_manager_cleanup(man);
87
88	ttm_set_driver_manager(&dev_priv->bdev, VMW_PL_SYSTEM, NULL);
89	kfree(man);
90}

 1/* SPDX-License-Identifier: GPL-2.0 OR MIT */
 2/*
 3 * Copyright 2021 VMware, Inc.
 4 *
 5 * Permission is hereby granted, free of charge, to any person
 6 * obtaining a copy of this software and associated documentation
 7 * files (the "Software"), to deal in the Software without
 8 * restriction, including without limitation the rights to use, copy,
 9 * modify, merge, publish, distribute, sublicense, and/or sell copies
10 * of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
20 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
21 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 */
26
27#include "vmwgfx_drv.h"
28
29#include <drm/ttm/ttm_bo_driver.h>
30#include <drm/ttm/ttm_device.h>
31#include <drm/ttm/ttm_placement.h>
32#include <drm/ttm/ttm_resource.h>
33#include <linux/slab.h>
34
35
36static int vmw_sys_man_alloc(struct ttm_resource_manager *man,
37			     struct ttm_buffer_object *bo,
38			     const struct ttm_place *place,
39			     struct ttm_resource **res)
40{
41	*res = kzalloc(sizeof(**res), GFP_KERNEL);
42	if (!*res)
43		return -ENOMEM;
44
45	ttm_resource_init(bo, place, *res);
46	return 0;
47}
48
49static void vmw_sys_man_free(struct ttm_resource_manager *man,
50			     struct ttm_resource *res)
51{
52	ttm_resource_fini(man, res);
53	kfree(res);
54}
55
56static const struct ttm_resource_manager_func vmw_sys_manager_func = {
57	.alloc = vmw_sys_man_alloc,
58	.free = vmw_sys_man_free,
59};
60
61int vmw_sys_man_init(struct vmw_private *dev_priv)
62{
63	struct ttm_device *bdev = &dev_priv->bdev;
64	struct ttm_resource_manager *man =
65			kzalloc(sizeof(*man), GFP_KERNEL);
66
67	if (!man)
68		return -ENOMEM;
69
70	man->use_tt = true;
71	man->func = &vmw_sys_manager_func;
72
73	ttm_resource_manager_init(man, bdev, 0);
74	ttm_set_driver_manager(bdev, VMW_PL_SYSTEM, man);
75	ttm_resource_manager_set_used(man, true);
76	return 0;
77}
78
79void vmw_sys_man_fini(struct vmw_private *dev_priv)
80{
81	struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev,
82							    VMW_PL_SYSTEM);
83
84	ttm_resource_manager_evict_all(&dev_priv->bdev, man);
85
86	ttm_resource_manager_set_used(man, false);
87	ttm_resource_manager_cleanup(man);
88
89	ttm_set_driver_manager(&dev_priv->bdev, VMW_PL_SYSTEM, NULL);
90	kfree(man);
91}