1 /*- 2 * Copyright (c) 2000 Doug Rabson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _PCI_AGPPRIV_H_ 30 #define _PCI_AGPPRIV_H_ 31 32 /* 33 * This file *must not* be included by code outside the agp driver itself. 34 */ 35 36 #include <sys/agpio.h> 37 #include <dev/agp/agpvar.h> 38 39 #ifdef AGP_DEBUG 40 #define AGP_DPF(fmt, ...) do { \ 41 printf("agp: " fmt, ##__VA_ARGS__); \ 42 } while (0) 43 #else 44 #define AGP_DPF(fmt, ...) do {} while (0) 45 #endif 46 47 #include "agp_if.h" 48 49 /* 50 * Data structure to describe an AGP memory allocation. 51 */ 52 TAILQ_HEAD(agp_memory_list, agp_memory); 53 struct agp_memory { 54 TAILQ_ENTRY(agp_memory) am_link; /* wiring for the tailq */ 55 int am_id; /* unique id for block */ 56 vm_size_t am_size; /* number of bytes allocated */ 57 int am_type; /* chipset specific type */ 58 struct vm_object *am_obj; /* VM object owning pages */ 59 vm_offset_t am_physical; /* bogus hack for i810 */ 60 vm_offset_t am_offset; /* page offset if bound */ 61 int am_is_bound; /* non-zero if bound */ 62 }; 63 64 /* 65 * All chipset drivers must have this at the start of their softc. 66 */ 67 struct agp_softc { 68 struct resource *as_aperture; /* location of aperture */ 69 int as_aperture_rid; 70 u_int32_t as_maxmem; /* allocation upper bound */ 71 u_int32_t as_allocated; /* amount allocated */ 72 enum agp_acquire_state as_state; 73 struct agp_memory_list as_memory; /* list of allocated memory */ 74 int as_nextid; /* next memory block id */ 75 int as_isopen; /* user device is open */ 76 struct cdev *as_devnode; /* from make_dev */ 77 struct mtx as_lock; /* lock for access to GATT */ 78 }; 79 80 struct agp_gatt { 81 u_int32_t ag_entries; 82 u_int32_t *ag_virtual; 83 vm_offset_t ag_physical; 84 }; 85 86 void agp_flush_cache(void); 87 u_int8_t agp_find_caps(device_t dev); 88 struct agp_gatt *agp_alloc_gatt(device_t dev); 89 void agp_set_aperture_resource(device_t dev, int rid); 90 void agp_free_cdev(device_t dev); 91 void agp_free_gatt(struct agp_gatt *gatt); 92 void agp_free_res(device_t dev); 93 int agp_generic_attach(device_t dev); 94 int agp_generic_detach(device_t dev); 95 u_int32_t agp_generic_get_aperture(device_t dev); 96 int agp_generic_set_aperture(device_t dev, 97 u_int32_t aperture); 98 int agp_generic_enable(device_t dev, u_int32_t mode); 99 struct agp_memory *agp_generic_alloc_memory(device_t dev, int type, 100 vm_size_t size); 101 int agp_generic_free_memory(device_t dev, 102 struct agp_memory *mem); 103 int agp_generic_bind_memory(device_t dev, 104 struct agp_memory *mem, 105 vm_offset_t offset); 106 int agp_generic_unbind_memory(device_t dev, 107 struct agp_memory *mem); 108 109 #endif /* !_PCI_AGPPRIV_H_ */ 110