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| 4075 | Serge | 1 | /************************************************************************** |
| 2 | * |
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| 3 | * Copyright © 2012 VMware, Inc., Palo Alto, CA., USA |
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| 4 | * All Rights Reserved. |
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| 5 | * |
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 7 | * copy of this software and associated documentation files (the |
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| 8 | * "Software"), to deal in the Software without restriction, including |
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| 9 | * without limitation the rights to use, copy, modify, merge, publish, |
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| 10 | * distribute, sub license, and/or sell copies of the Software, and to |
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| 11 | * permit persons to whom the Software is furnished to do so, subject to |
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| 12 | * the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice (including the |
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| 15 | * next paragraph) shall be included in all copies or substantial portions |
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| 16 | * of the Software. |
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| 17 | * |
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
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| 21 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
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| 22 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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| 23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
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| 24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | * |
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| 26 | **************************************************************************/ |
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| 27 | |||
| 28 | #ifndef _VMWGFX_RESOURCE_PRIV_H_ |
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| 29 | #define _VMWGFX_RESOURCE_PRIV_H_ |
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| 30 | |||
| 31 | #include "vmwgfx_drv.h" |
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| 32 | |||
| 33 | /** |
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| 34 | * struct vmw_user_resource_conv - Identify a derived user-exported resource |
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| 35 | * type and provide a function to convert its ttm_base_object pointer to |
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| 36 | * a struct vmw_resource |
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| 37 | */ |
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| 38 | struct vmw_user_resource_conv { |
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| 39 | enum ttm_object_type object_type; |
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| 40 | struct vmw_resource *(*base_obj_to_res)(struct ttm_base_object *base); |
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| 41 | void (*res_free) (struct vmw_resource *res); |
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| 42 | }; |
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| 43 | |||
| 44 | /** |
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| 45 | * struct vmw_res_func - members and functions common for a resource type |
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| 46 | * |
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| 47 | * @res_type: Enum that identifies the lru list to use for eviction. |
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| 48 | * @needs_backup: Whether the resource is guest-backed and needs |
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| 49 | * persistent buffer storage. |
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| 50 | * @type_name: String that identifies the resource type. |
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| 51 | * @backup_placement: TTM placement for backup buffers. |
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| 52 | * @may_evict Whether the resource may be evicted. |
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| 53 | * @create: Create a hardware resource. |
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| 54 | * @destroy: Destroy a hardware resource. |
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| 55 | * @bind: Bind a hardware resource to persistent buffer storage. |
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| 56 | * @unbind: Unbind a hardware resource from persistent |
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| 57 | * buffer storage. |
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| 58 | */ |
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| 59 | |||
| 60 | struct vmw_res_func { |
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| 61 | enum vmw_res_type res_type; |
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| 62 | bool needs_backup; |
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| 63 | const char *type_name; |
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| 64 | struct ttm_placement *backup_placement; |
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| 65 | bool may_evict; |
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| 66 | |||
| 67 | int (*create) (struct vmw_resource *res); |
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| 68 | int (*destroy) (struct vmw_resource *res); |
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| 69 | int (*bind) (struct vmw_resource *res, |
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| 70 | struct ttm_validate_buffer *val_buf); |
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| 71 | int (*unbind) (struct vmw_resource *res, |
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| 72 | bool readback, |
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| 73 | struct ttm_validate_buffer *val_buf); |
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| 74 | }; |
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| 75 | |||
| 76 | int vmw_resource_alloc_id(struct vmw_resource *res); |
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| 77 | void vmw_resource_release_id(struct vmw_resource *res); |
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| 78 | int vmw_resource_init(struct vmw_private *dev_priv, struct vmw_resource *res, |
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| 79 | bool delay_id, |
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| 80 | void (*res_free) (struct vmw_resource *res), |
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| 81 | const struct vmw_res_func *func); |
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| 82 | void vmw_resource_activate(struct vmw_resource *res, |
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| 83 | void (*hw_destroy) (struct vmw_resource *)); |
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| 84 | #endif |