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 #define AGP_DEBUGxx 40 41 #ifdef AGP_DEBUG 42 #define AGP_DPF(x...) do { \ 43 printf("agp: "); \ 44 printf(##x); \ 45 } while (0) 46 #else 47 #define AGP_DPF(x...) do {} while (0) 48 #endif 49 50 #include "agp_if.h" 51 52 /* 53 * Data structure to describe an AGP memory allocation. 54 */ 55 TAILQ_HEAD(agp_memory_list, agp_memory); 56 struct agp_memory { 57 TAILQ_ENTRY(agp_memory) am_link; /* wiring for the tailq */ 58 int am_id; /* unique id for block */ 59 vm_size_t am_size; /* number of bytes allocated */ 60 int am_type; /* chipset specific type */ 61 struct vm_object *am_obj; /* VM object owning pages */ 62 vm_offset_t am_physical; /* bogus hack for i810 */ 63 vm_offset_t am_offset; /* page offset if bound */ 64 int am_is_bound; /* non-zero if bound */ 65 }; 66 67 /* 68 * All chipset drivers must have this at the start of their softc. 69 */ 70 struct agp_softc { 71 struct resource *as_aperture; /* location of aperture */ 72 int as_aperture_rid; 73 u_int32_t as_maxmem; /* allocation upper bound */ 74 u_int32_t as_allocated; /* amount allocated */ 75 enum agp_acquire_state as_state; 76 struct agp_memory_list as_memory; /* list of allocated memory */ 77 int as_nextid; /* next memory block id */ 78 int as_isopen; /* user device is open */ 79 struct cdev *as_devnode; /* from make_dev */ 80 struct mtx as_lock; /* lock for access to GATT */ 81 }; 82 83 struct agp_gatt { 84 u_int32_t ag_entries; 85 u_int32_t *ag_virtual; 86 vm_offset_t ag_physical; 87 }; 88 89 void agp_flush_cache(void); 90 u_int8_t agp_find_caps(device_t dev); 91 struct agp_gatt *agp_alloc_gatt(device_t dev); 92 void agp_set_aperture_resource(device_t dev, int rid); 93 void agp_free_cdev(device_t dev); 94 void agp_free_gatt(struct agp_gatt *gatt); 95 void agp_free_res(device_t dev); 96 int agp_generic_attach(device_t dev); 97 int agp_generic_detach(device_t dev); 98 int agp_generic_get_aperture(device_t dev); 99 int agp_generic_set_aperture(device_t dev, 100 u_int32_t aperture); 101 int agp_generic_enable(device_t dev, u_int32_t mode); 102 struct agp_memory *agp_generic_alloc_memory(device_t dev, int type, 103 vm_size_t size); 104 int agp_generic_free_memory(device_t dev, 105 struct agp_memory *mem); 106 int agp_generic_bind_memory(device_t dev, 107 struct agp_memory *mem, 108 vm_offset_t offset); 109 int agp_generic_unbind_memory(device_t dev, 110 struct agp_memory *mem); 111 112 #endif /* !_PCI_AGPPRIV_H_ */ 113