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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2000 Doug Rabson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _PCI_AGPPRIV_H_
#define _PCI_AGPPRIV_H_
/*
* This file *must not* be included by code outside the agp driver itself.
*/
#include <sys/agpio.h>
#include <dev/agp/agpvar.h>
#ifdef AGP_DEBUG
#define AGP_DPF(fmt, ...) do { \
printf("agp: " fmt, ##__VA_ARGS__); \
} while (0)
#else
#define AGP_DPF(fmt, ...) do {} while (0)
#endif
#include "agp_if.h"
/*
* Data structure to describe an AGP memory allocation.
*/
TAILQ_HEAD(agp_memory_list, agp_memory);
struct agp_memory {
TAILQ_ENTRY(agp_memory) am_link; /* wiring for the tailq */
int am_id; /* unique id for block */
vm_size_t am_size; /* number of bytes allocated */
int am_type; /* chipset specific type */
struct vm_object *am_obj; /* VM object owning pages */
vm_offset_t am_physical; /* bogus hack for i810 */
vm_offset_t am_offset; /* page offset if bound */
int am_is_bound; /* non-zero if bound */
};
/*
* All chipset drivers must have this at the start of their softc.
*/
struct agp_softc {
struct resource *as_aperture; /* location of aperture */
int as_aperture_rid;
u_int32_t as_maxmem; /* allocation upper bound */
u_int32_t as_allocated; /* amount allocated */
enum agp_acquire_state as_state;
struct agp_memory_list as_memory; /* list of allocated memory */
int as_nextid; /* next memory block id */
int as_isopen; /* user device is open */
struct cdev *as_devnode; /* from make_dev */
struct mtx as_lock; /* lock for access to GATT */
};
struct agp_gatt {
u_int32_t ag_entries;
u_int32_t *ag_virtual;
vm_offset_t ag_physical;
};
u_int8_t agp_find_caps(device_t dev);
struct agp_gatt *agp_alloc_gatt(device_t dev);
void agp_set_aperture_resource(device_t dev, int rid);
void agp_free_cdev(device_t dev);
void agp_free_gatt(struct agp_gatt *gatt);
void agp_free_res(device_t dev);
int agp_generic_attach(device_t dev);
int agp_generic_detach(device_t dev);
u_int32_t agp_generic_get_aperture(device_t dev);
int agp_generic_set_aperture(device_t dev,
u_int32_t aperture);
int agp_generic_enable(device_t dev, u_int32_t mode);
struct agp_memory *agp_generic_alloc_memory(device_t dev, int type,
vm_size_t size);
int agp_generic_free_memory(device_t dev,
struct agp_memory *mem);
int agp_generic_bind_memory(device_t dev,
struct agp_memory *mem,
vm_offset_t offset);
int agp_generic_unbind_memory(device_t dev,
struct agp_memory *mem);
#endif /* !_PCI_AGPPRIV_H_ */
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