projects / deliverable / linux.git / blame
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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 |