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: src/sys/pci/agppriv.h,v 1.3.2.1 2000/07/19 09:48:04 ru Exp $ 27 * $DragonFly: src/sys/dev/agp/agppriv.h,v 1.2 2003/06/17 04:28:56 dillon Exp $ 28 */ 29 30 #ifndef _PCI_AGPPRIV_H_ 31 #define _PCI_AGPPRIV_H_ 32 33 /* 34 * This file *must not* be included by code outside the agp driver itself. 35 */ 36 37 #include <sys/agpio.h> 38 #include <pci/agpvar.h> 39 40 #define AGP_DEBUGxx 41 42 #ifdef AGP_DEBUG 43 #define AGP_DPF(x...) do { \ 44 printf("agp: "); \ 45 printf(##x); \ 46 } while (0) 47 #else 48 #define AGP_DPF(x...) do {} while (0) 49 #endif 50 51 #include "agp_if.h" 52 53 /* 54 * Data structure to describe an AGP memory allocation. 55 */ 56 TAILQ_HEAD(agp_memory_list, agp_memory); 57 struct agp_memory { 58 TAILQ_ENTRY(agp_memory) am_link; /* wiring for the tailq */ 59 int am_id; /* unique id for block */ 60 vm_size_t am_size; /* number of bytes allocated */ 61 int am_type; /* chipset specific type */ 62 struct vm_object *am_obj; /* VM object owning pages */ 63 vm_offset_t am_physical; /* bogus hack for i810 */ 64 vm_offset_t am_offset; /* page offset if bound */ 65 int am_is_bound; /* non-zero if bound */ 66 }; 67 68 /* 69 * All chipset drivers must have this at the start of their softc. 70 */ 71 struct agp_softc { 72 struct resource *as_aperture; /* location of aperture */ 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 dev_t as_devnode; /* from make_dev */ 80 struct lock 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_free_gatt(struct agp_gatt *gatt); 93 int agp_generic_attach(device_t dev); 94 int agp_generic_detach(device_t dev); 95 int agp_generic_enable(device_t dev, u_int32_t mode); 96 struct agp_memory *agp_generic_alloc_memory(device_t dev, int type, 97 vm_size_t size); 98 int agp_generic_free_memory(device_t dev, 99 struct agp_memory *mem); 100 int agp_generic_bind_memory(device_t dev, 101 struct agp_memory *mem, 102 vm_offset_t offset); 103 int agp_generic_unbind_memory(device_t dev, 104 struct agp_memory *mem); 105 106 #endif /* !_PCI_AGPPRIV_H_ */ 107