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1 | /************************************************************************** |
2 | * | |
3 | * Copyright © 2012 VMware, Inc., Palo Alto, CA., USA | |
4 | * All Rights Reserved. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a | |
7 | * copy of this software and associated documentation files (the | |
8 | * "Software"), to deal in the Software without restriction, including | |
9 | * without limitation the rights to use, copy, modify, merge, publish, | |
10 | * distribute, sub license, and/or sell copies of the Software, and to | |
11 | * permit persons to whom the Software is furnished to do so, subject to | |
12 | * the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the | |
15 | * next paragraph) shall be included in all copies or substantial portions | |
16 | * of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
21 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, | |
22 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | |
23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | |
24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. | |
25 | * | |
26 | **************************************************************************/ | |
27 | ||
28 | #ifndef _VMWGFX_RESOURCE_PRIV_H_ | |
29 | #define _VMWGFX_RESOURCE_PRIV_H_ | |
30 | ||
31 | #include "vmwgfx_drv.h" | |
32 | ||
33 | /** | |
34 | * struct vmw_user_resource_conv - Identify a derived user-exported resource | |
35 | * type and provide a function to convert its ttm_base_object pointer to | |
36 | * a struct vmw_resource | |
37 | */ | |
38 | struct vmw_user_resource_conv { | |
39 | enum ttm_object_type object_type; | |
40 | struct vmw_resource *(*base_obj_to_res)(struct ttm_base_object *base); | |
41 | void (*res_free) (struct vmw_resource *res); | |
42 | }; | |
43 | ||
44 | /** | |
45 | * struct vmw_res_func - members and functions common for a resource type | |
46 | * | |
47 | * @res_type: Enum that identifies the lru list to use for eviction. | |
48 | * @needs_backup: Whether the resource is guest-backed and needs | |
49 | * persistent buffer storage. | |
50 | * @type_name: String that identifies the resource type. | |
51 | * @backup_placement: TTM placement for backup buffers. | |
52 | * @may_evict Whether the resource may be evicted. | |
53 | * @create: Create a hardware resource. | |
54 | * @destroy: Destroy a hardware resource. | |
55 | * @bind: Bind a hardware resource to persistent buffer storage. | |
56 | * @unbind: Unbind a hardware resource from persistent | |
57 | * buffer storage. | |
58 | */ | |
59 | ||
60 | struct vmw_res_func { | |
61 | enum vmw_res_type res_type; | |
62 | bool needs_backup; | |
63 | const char *type_name; | |
64 | struct ttm_placement *backup_placement; | |
65 | bool may_evict; | |
66 | ||
67 | int (*create) (struct vmw_resource *res); | |
68 | int (*destroy) (struct vmw_resource *res); | |
69 | int (*bind) (struct vmw_resource *res, | |
70 | struct ttm_validate_buffer *val_buf); | |
71 | int (*unbind) (struct vmw_resource *res, | |
72 | bool readback, | |
73 | struct ttm_validate_buffer *val_buf); | |
74 | }; | |
75 | ||
76 | int vmw_resource_alloc_id(struct vmw_resource *res); | |
77 | void vmw_resource_release_id(struct vmw_resource *res); | |
78 | int vmw_resource_init(struct vmw_private *dev_priv, struct vmw_resource *res, | |
79 | bool delay_id, | |
80 | void (*res_free) (struct vmw_resource *res), | |
81 | const struct vmw_res_func *func); | |
82 | void vmw_resource_activate(struct vmw_resource *res, | |
83 | void (*hw_destroy) (struct vmw_resource *)); | |
84 | #endif |