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/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/**************************************************************************
*
* Copyright 2012-2014 VMware, Inc., Palo Alto, CA., USA
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef _VMWGFX_RESOURCE_PRIV_H_
#define _VMWGFX_RESOURCE_PRIV_H_
#include "vmwgfx_drv.h"
/*
* Extra memory required by the resource id's ida storage, which is allocated
* separately from the base object itself. We estimate an on-average 128 bytes
* per ida.
*/
#define VMW_IDA_ACC_SIZE 128
enum vmw_cmdbuf_res_state {
VMW_CMDBUF_RES_COMMITTED,
VMW_CMDBUF_RES_ADD,
VMW_CMDBUF_RES_DEL
};
/**
* struct vmw_user_resource_conv - Identify a derived user-exported resource
* type and provide a function to convert its ttm_base_object pointer to
* a struct vmw_resource
*/
struct vmw_user_resource_conv {
enum ttm_object_type object_type;
struct vmw_resource *(*base_obj_to_res)(struct ttm_base_object *base);
void (*res_free) (struct vmw_resource *res);
};
/**
* struct vmw_res_func - members and functions common for a resource type
*
* @res_type: Enum that identifies the lru list to use for eviction.
* @needs_backup: Whether the resource is guest-backed and needs
* persistent buffer storage.
* @type_name: String that identifies the resource type.
* @backup_placement: TTM placement for backup buffers.
* @may_evict Whether the resource may be evicted.
* @create: Create a hardware resource.
* @destroy: Destroy a hardware resource.
* @bind: Bind a hardware resource to persistent buffer storage.
* @unbind: Unbind a hardware resource from persistent
* buffer storage.
* @commit_notify: If the resource is a command buffer managed resource,
* callback to notify that a define or remove command
* has been committed to the device.
*/
struct vmw_res_func {
enum vmw_res_type res_type;
bool needs_backup;
const char *type_name;
struct ttm_placement *backup_placement;
bool may_evict;
int (*create) (struct vmw_resource *res);
int (*destroy) (struct vmw_resource *res);
int (*bind) (struct vmw_resource *res,
struct ttm_validate_buffer *val_buf);
int (*unbind) (struct vmw_resource *res,
bool readback,
struct ttm_validate_buffer *val_buf);
void (*commit_notify)(struct vmw_resource *res,
enum vmw_cmdbuf_res_state state);
};
/**
* struct vmw_simple_resource_func - members and functions common for the
* simple resource helpers.
* @res_func: struct vmw_res_func as described above.
* @ttm_res_type: TTM resource type used for handle recognition.
* @size: Size of the simple resource information struct.
* @init: Initialize the simple resource information.
* @hw_destroy: A resource hw_destroy function.
* @set_arg_handle: Set the handle output argument of the ioctl create struct.
*/
struct vmw_simple_resource_func {
const struct vmw_res_func res_func;
int ttm_res_type;
size_t size;
int (*init)(struct vmw_resource *res, void *data);
void (*hw_destroy)(struct vmw_resource *res);
void (*set_arg_handle)(void *data, u32 handle);
};
/**
* struct vmw_simple_resource - Kernel only side simple resource
* @res: The resource we derive from.
* @func: The method and member virtual table.
*/
struct vmw_simple_resource {
struct vmw_resource res;
const struct vmw_simple_resource_func *func;
};
int vmw_resource_alloc_id(struct vmw_resource *res);
void vmw_resource_release_id(struct vmw_resource *res);
int vmw_resource_init(struct vmw_private *dev_priv, struct vmw_resource *res,
bool delay_id,
void (*res_free) (struct vmw_resource *res),
const struct vmw_res_func *func);
int
vmw_simple_resource_create_ioctl(struct drm_device *dev,
void *data,
struct drm_file *file_priv,
const struct vmw_simple_resource_func *func);
struct vmw_resource *
vmw_simple_resource_lookup(struct ttm_object_file *tfile,
uint32_t handle,
const struct vmw_simple_resource_func *func);
#endif
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