[linux-2.6-block.git] / drivers / gpu / drm / vmwgfx / vmwgfx_resource_priv.h

/* 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.
 * @dirty_alloc:       Allocate a dirty tracker. NULL if dirty-tracking is not
 *                     supported.
 * @dirty_free:        Free the dirty tracker.
 * @dirty_sync:        Upload the dirty mob contents to the resource.
 * @dirty_add_range:   Add a sequential dirty range to the resource
 *                     dirty tracker.
 * @clean:             Clean the resource.
 */
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;
	u32 prio;
	u32 dirty_prio;

	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);
	int (*dirty_alloc)(struct vmw_resource *res);
	void (*dirty_free)(struct vmw_resource *res);
	int (*dirty_sync)(struct vmw_resource *res);
	void (*dirty_range_add)(struct vmw_resource *res, size_t start,
				 size_t end);
	int (*clean)(struct vmw_resource *res);
};

/**
 * 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
Commit	Line	Data
dff96888	1	/* SPDX-License-Identifier: GPL-2.0 OR MIT */
543831cf TH	2	/**************************************************************************
543831cf TH	3	*
dff96888	4	* Copyright 2012-2014 VMware, Inc., Palo Alto, CA., USA
543831cf TH	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
c7eae626 TH	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	*/
d4d21902 TH	38	#define VMW_IDA_ACC_SIZE 128
d4d21902 TH	39
d80efd5c TH	40	enum vmw_cmdbuf_res_state {
	41	VMW_CMDBUF_RES_COMMITTED,
	42	VMW_CMDBUF_RES_ADD,
	43	VMW_CMDBUF_RES_DEL
	44	};
	45
543831cf TH	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	*/
	51	struct 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.
d80efd5c TH	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.
b7468b15 TH	74	* @dirty_alloc: Allocate a dirty tracker. NULL if dirty-tracking is not
	75	* supported.
	76	* @dirty_free: Free the dirty tracker.
	77	* @dirty_sync: Upload the dirty mob contents to the resource.
	78	* @dirty_add_range: Add a sequential dirty range to the resource
	79	* dirty tracker.
fb80edb0	80	* @clean: Clean the resource.
543831cf	81	*/
543831cf TH	82	struct vmw_res_func {
	83	enum vmw_res_type res_type;
	84	bool needs_backup;
	85	const char *type_name;
	86	struct ttm_placement *backup_placement;
	87	bool may_evict;
a0a63940 TH	88	u32 prio;
a0a63940 TH	89	u32 dirty_prio;
543831cf TH	90
	91	int (create) (struct vmw_resource res);
	92	int (destroy) (struct vmw_resource res);
	93	int (bind) (struct vmw_resource res,
	94	struct ttm_validate_buffer *val_buf);
	95	int (unbind) (struct vmw_resource res,
	96	bool readback,
	97	struct ttm_validate_buffer *val_buf);
d80efd5c TH	98	void (commit_notify)(struct vmw_resource res,
d80efd5c TH	99	enum vmw_cmdbuf_res_state state);
b7468b15 TH	100	int (dirty_alloc)(struct vmw_resource res);
	101	void (dirty_free)(struct vmw_resource res);
	102	int (dirty_sync)(struct vmw_resource res);
	103	void (dirty_range_add)(struct vmw_resource res, size_t start,
	104	size_t end);
fb80edb0	105	int (clean)(struct vmw_resource res);
543831cf TH	106	};
543831cf TH	107
d4d21902 TH	108	/**
	109	* struct vmw_simple_resource_func - members and functions common for the
	110	* simple resource helpers.
	111	* @res_func: struct vmw_res_func as described above.
	112	* @ttm_res_type: TTM resource type used for handle recognition.
	113	* @size: Size of the simple resource information struct.
	114	* @init: Initialize the simple resource information.
	115	* @hw_destroy: A resource hw_destroy function.
	116	* @set_arg_handle: Set the handle output argument of the ioctl create struct.
	117	*/
	118	struct vmw_simple_resource_func {
	119	const struct vmw_res_func res_func;
	120	int ttm_res_type;
	121	size_t size;
	122	int (init)(struct vmw_resource res, void *data);
	123	void (hw_destroy)(struct vmw_resource res);
	124	void (set_arg_handle)(void data, u32 handle);
	125	};
	126
	127	/**
	128	* struct vmw_simple_resource - Kernel only side simple resource
	129	* @res: The resource we derive from.
	130	* @func: The method and member virtual table.
	131	*/
	132	struct vmw_simple_resource {
	133	struct vmw_resource res;
	134	const struct vmw_simple_resource_func *func;
	135	};
	136
543831cf TH	137	int vmw_resource_alloc_id(struct vmw_resource *res);
	138	void vmw_resource_release_id(struct vmw_resource *res);
	139	int vmw_resource_init(struct vmw_private dev_priv, struct vmw_resource res,
	140	bool delay_id,
	141	void (res_free) (struct vmw_resource res),
	142	const struct vmw_res_func *func);
d4d21902 TH	143	int
	144	vmw_simple_resource_create_ioctl(struct drm_device *dev,
	145	void *data,
	146	struct drm_file *file_priv,
	147	const struct vmw_simple_resource_func *func);
	148	struct vmw_resource *
	149	vmw_simple_resource_lookup(struct ttm_object_file *tfile,
	150	uint32_t handle,
	151	const struct vmw_simple_resource_func *func);
543831cf	152	#endif