1/* SPDX-License-Identifier: GPL-2.0 OR MIT */ 2/************************************************************************** 3 * 4 * Copyright 2012-2014 VMware, Inc., Palo Alto, CA., USA 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 * Extra memory required by the resource id's ida storage, which is allocated 35 * separately from the base object itself. We estimate an on-average 128 bytes 36 * per ida. 37 */ 38#define VMW_IDA_ACC_SIZE 128 39 40enum vmw_cmdbuf_res_state { 41 VMW_CMDBUF_RES_COMMITTED, 42 VMW_CMDBUF_RES_ADD, 43 VMW_CMDBUF_RES_DEL 44}; 45 46/** 47 * struct vmw_user_resource_conv - Identify a derived user-exported resource 48 * type and provide a function to convert its ttm_base_object pointer to 49 * a struct vmw_resource 50 */ 51struct vmw_user_resource_conv { 52 enum ttm_object_type object_type; 53 struct vmw_resource *(*base_obj_to_res)(struct ttm_base_object *base); 54 void (*res_free) (struct vmw_resource *res); 55}; 56 57/** 58 * struct vmw_res_func - members and functions common for a resource type 59 * 60 * @res_type: Enum that identifies the lru list to use for eviction. 61 * @needs_backup: Whether the resource is guest-backed and needs 62 * persistent buffer storage. 63 * @type_name: String that identifies the resource type. 64 * @backup_placement: TTM placement for backup buffers. 65 * @may_evict Whether the resource may be evicted. 66 * @create: Create a hardware resource. 67 * @destroy: Destroy a hardware resource. 68 * @bind: Bind a hardware resource to persistent buffer storage. 69 * @unbind: Unbind a hardware resource from persistent 70 * buffer storage. 71 * @commit_notify: If the resource is a command buffer managed resource, 72 * callback to notify that a define or remove command 73 * has been committed to the device. 74 */ 75struct vmw_res_func { 76 enum vmw_res_type res_type; 77 bool needs_backup; 78 const char *type_name; 79 struct ttm_placement *backup_placement; 80 bool may_evict; 81 82 int (*create) (struct vmw_resource *res); 83 int (*destroy) (struct vmw_resource *res); 84 int (*bind) (struct vmw_resource *res, 85 struct ttm_validate_buffer *val_buf); 86 int (*unbind) (struct vmw_resource *res, 87 bool readback, 88 struct ttm_validate_buffer *val_buf); 89 void (*commit_notify)(struct vmw_resource *res, 90 enum vmw_cmdbuf_res_state state); 91}; 92 93/** 94 * struct vmw_simple_resource_func - members and functions common for the 95 * simple resource helpers. 96 * @res_func: struct vmw_res_func as described above. 97 * @ttm_res_type: TTM resource type used for handle recognition. 98 * @size: Size of the simple resource information struct. 99 * @init: Initialize the simple resource information. 100 * @hw_destroy: A resource hw_destroy function. 101 * @set_arg_handle: Set the handle output argument of the ioctl create struct. 102 */ 103struct vmw_simple_resource_func { 104 const struct vmw_res_func res_func; 105 int ttm_res_type; 106 size_t size; 107 int (*init)(struct vmw_resource *res, void *data); 108 void (*hw_destroy)(struct vmw_resource *res); 109 void (*set_arg_handle)(void *data, u32 handle); 110}; 111 112/** 113 * struct vmw_simple_resource - Kernel only side simple resource 114 * @res: The resource we derive from. 115 * @func: The method and member virtual table. 116 */ 117struct vmw_simple_resource { 118 struct vmw_resource res; 119 const struct vmw_simple_resource_func *func; 120}; 121 122int vmw_resource_alloc_id(struct vmw_resource *res); 123void vmw_resource_release_id(struct vmw_resource *res); 124int vmw_resource_init(struct vmw_private *dev_priv, struct vmw_resource *res, 125 bool delay_id, 126 void (*res_free) (struct vmw_resource *res), 127 const struct vmw_res_func *func); 128int 129vmw_simple_resource_create_ioctl(struct drm_device *dev, 130 void *data, 131 struct drm_file *file_priv, 132 const struct vmw_simple_resource_func *func); 133struct vmw_resource * 134vmw_simple_resource_lookup(struct ttm_object_file *tfile, 135 uint32_t handle, 136 const struct vmw_simple_resource_func *func); 137#endif 138