782691f64c
since it's always acquiring the lock exclusively. This was tested with X on an SMP box, with and without WITNESS.
106 lines
3.5 KiB
C
106 lines
3.5 KiB
C
/*-
|
|
* 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 <pci/agpvar.h>
|
|
|
|
#define AGP_DEBUGxx
|
|
|
|
#ifdef AGP_DEBUG
|
|
#define AGP_DPF(x...) do { \
|
|
printf("agp: "); \
|
|
printf(##x); \
|
|
} while (0)
|
|
#else
|
|
#define AGP_DPF(x...) 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 */
|
|
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 */
|
|
dev_t 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;
|
|
};
|
|
|
|
void agp_flush_cache(void);
|
|
u_int8_t agp_find_caps(device_t dev);
|
|
struct agp_gatt *agp_alloc_gatt(device_t dev);
|
|
void agp_free_gatt(struct agp_gatt *gatt);
|
|
int agp_generic_attach(device_t dev);
|
|
int agp_generic_detach(device_t dev);
|
|
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_ */
|