agpvar.h revision 1.3.2.3
1 1.3.2.3 nathanw /* $NetBSD: agpvar.h,v 1.3.2.3 2001/10/08 20:11:10 nathanw Exp $ */ 2 1.3.2.2 nathanw 3 1.3.2.2 nathanw /*- 4 1.3.2.2 nathanw * Copyright (c) 2000 Doug Rabson 5 1.3.2.2 nathanw * All rights reserved. 6 1.3.2.2 nathanw * 7 1.3.2.2 nathanw * Redistribution and use in source and binary forms, with or without 8 1.3.2.2 nathanw * modification, are permitted provided that the following conditions 9 1.3.2.2 nathanw * are met: 10 1.3.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 11 1.3.2.2 nathanw * notice, this list of conditions and the following disclaimer. 12 1.3.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 13 1.3.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 14 1.3.2.2 nathanw * documentation and/or other materials provided with the distribution. 15 1.3.2.2 nathanw * 16 1.3.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 1.3.2.2 nathanw * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 1.3.2.2 nathanw * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 1.3.2.2 nathanw * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 1.3.2.2 nathanw * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 1.3.2.2 nathanw * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 1.3.2.2 nathanw * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 1.3.2.2 nathanw * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 1.3.2.2 nathanw * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 1.3.2.2 nathanw * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 1.3.2.2 nathanw * SUCH DAMAGE. 27 1.3.2.2 nathanw * 28 1.3.2.2 nathanw * $FreeBSD: src/sys/pci/agppriv.h,v 1.3 2000/07/12 10:13:04 dfr Exp $ 29 1.3.2.2 nathanw */ 30 1.3.2.2 nathanw 31 1.3.2.2 nathanw #ifndef _PCI_AGPVAR_H_ 32 1.3.2.2 nathanw #define _PCI_AGPVAR_H_ 33 1.3.2.2 nathanw 34 1.3.2.2 nathanw #include <sys/lock.h> 35 1.3.2.2 nathanw 36 1.3.2.2 nathanw struct agpbus_attach_args { 37 1.3.2.2 nathanw char *apa_busname; 38 1.3.2.2 nathanw struct pci_attach_args apa_pci_args; 39 1.3.2.2 nathanw }; 40 1.3.2.2 nathanw 41 1.3.2.2 nathanw /* 42 1.3.2.2 nathanw * The AGP chipset can be acquired by user or kernel code. If the 43 1.3.2.2 nathanw * chipset has already been acquired, it cannot be acquired by another 44 1.3.2.2 nathanw * user until the previous user has released it. 45 1.3.2.2 nathanw */ 46 1.3.2.2 nathanw enum agp_acquire_state { 47 1.3.2.2 nathanw AGP_ACQUIRE_FREE, 48 1.3.2.2 nathanw AGP_ACQUIRE_USER, 49 1.3.2.2 nathanw AGP_ACQUIRE_KERNEL 50 1.3.2.2 nathanw }; 51 1.3.2.2 nathanw 52 1.3.2.2 nathanw /* 53 1.3.2.2 nathanw * This structure is used to query the state of the AGP system. 54 1.3.2.2 nathanw */ 55 1.3.2.2 nathanw struct agp_info { 56 1.3.2.2 nathanw u_int32_t ai_mode; 57 1.3.2.2 nathanw bus_addr_t ai_aperture_base; 58 1.3.2.2 nathanw bus_size_t ai_aperture_size; 59 1.3.2.2 nathanw vsize_t ai_memory_allowed; 60 1.3.2.2 nathanw vsize_t ai_memory_used; 61 1.3.2.2 nathanw u_int32_t ai_devid; 62 1.3.2.2 nathanw }; 63 1.3.2.2 nathanw 64 1.3.2.2 nathanw struct agp_memory_info { 65 1.3.2.2 nathanw vsize_t ami_size; /* size in bytes */ 66 1.3.2.2 nathanw bus_addr_t ami_physical; /* bogus hack for i810 */ 67 1.3.2.2 nathanw off_t ami_offset; /* page offset if bound */ 68 1.3.2.2 nathanw int ami_is_bound; /* non-zero if bound */ 69 1.3.2.2 nathanw }; 70 1.3.2.2 nathanw 71 1.3.2.2 nathanw #define AGP_DEBUGxx 72 1.3.2.2 nathanw 73 1.3.2.2 nathanw #ifdef AGP_DEBUG 74 1.3.2.2 nathanw #define AGP_DPF(x...) do { \ 75 1.3.2.2 nathanw printf("agp: "); \ 76 1.3.2.2 nathanw printf(##x); \ 77 1.3.2.2 nathanw } while (0) 78 1.3.2.2 nathanw #else 79 1.3.2.2 nathanw #define AGP_DPF(x...) do {} while (0) 80 1.3.2.2 nathanw #endif 81 1.3.2.2 nathanw 82 1.3.2.2 nathanw #define AGPUNIT(x) minor(x) 83 1.3.2.2 nathanw 84 1.3.2.2 nathanw /* 85 1.3.2.2 nathanw * Data structure to describe an AGP memory allocation. 86 1.3.2.2 nathanw */ 87 1.3.2.2 nathanw TAILQ_HEAD(agp_memory_list, agp_memory); 88 1.3.2.2 nathanw struct agp_memory { 89 1.3.2.2 nathanw TAILQ_ENTRY(agp_memory) am_link; /* wiring for the tailq */ 90 1.3.2.2 nathanw int am_id; /* unique id for block */ 91 1.3.2.2 nathanw vsize_t am_size; /* number of bytes allocated */ 92 1.3.2.2 nathanw int am_type; /* chipset specific type */ 93 1.3.2.2 nathanw off_t am_offset; /* page offset if bound */ 94 1.3.2.2 nathanw int am_is_bound; /* non-zero if bound */ 95 1.3.2.2 nathanw bus_addr_t am_physical; 96 1.3.2.2 nathanw caddr_t am_virtual; 97 1.3.2.2 nathanw bus_dmamap_t am_dmamap; 98 1.3.2.2 nathanw bus_dma_segment_t *am_dmaseg; 99 1.3.2.2 nathanw int am_nseg; 100 1.3.2.2 nathanw }; 101 1.3.2.2 nathanw 102 1.3.2.2 nathanw struct agp_softc; 103 1.3.2.2 nathanw 104 1.3.2.2 nathanw struct agp_methods { 105 1.3.2.2 nathanw u_int32_t (*get_aperture)(struct agp_softc *); 106 1.3.2.2 nathanw int (*set_aperture)(struct agp_softc *, u_int32_t); 107 1.3.2.2 nathanw int (*bind_page)(struct agp_softc *, off_t, bus_addr_t); 108 1.3.2.2 nathanw int (*unbind_page)(struct agp_softc *, off_t); 109 1.3.2.2 nathanw void (*flush_tlb)(struct agp_softc *); 110 1.3.2.2 nathanw int (*enable)(struct agp_softc *, u_int32_t mode); 111 1.3.2.2 nathanw struct agp_memory *(*alloc_memory)(struct agp_softc *, int, vsize_t); 112 1.3.2.2 nathanw int (*free_memory)(struct agp_softc *, struct agp_memory *); 113 1.3.2.2 nathanw int (*bind_memory)(struct agp_softc *, struct agp_memory *, off_t); 114 1.3.2.2 nathanw int (*unbind_memory)(struct agp_softc *, struct agp_memory *); 115 1.3.2.2 nathanw }; 116 1.3.2.2 nathanw 117 1.3.2.2 nathanw #define AGP_GET_APERTURE(sc) ((sc)->as_methods->get_aperture(sc)) 118 1.3.2.2 nathanw #define AGP_SET_APERTURE(sc,a) ((sc)->as_methods->set_aperture((sc),(a))) 119 1.3.2.2 nathanw #define AGP_BIND_PAGE(sc,o,p) ((sc)->as_methods->bind_page((sc),(o),(p))) 120 1.3.2.2 nathanw #define AGP_UNBIND_PAGE(sc,o) ((sc)->as_methods->unbind_page((sc), (o))) 121 1.3.2.2 nathanw #define AGP_FLUSH_TLB(sc) ((sc)->as_methods->flush_tlb(sc)) 122 1.3.2.2 nathanw #define AGP_ENABLE(sc,m) ((sc)->as_methods->enable((sc),(m))) 123 1.3.2.2 nathanw #define AGP_ALLOC_MEMORY(sc,t,s) ((sc)->as_methods->alloc_memory((sc),(t),(s))) 124 1.3.2.2 nathanw #define AGP_FREE_MEMORY(sc,m) ((sc)->as_methods->free_memory((sc),(m))) 125 1.3.2.2 nathanw #define AGP_BIND_MEMORY(sc,m,o) ((sc)->as_methods->bind_memory((sc),(m),(o))) 126 1.3.2.2 nathanw #define AGP_UNBIND_MEMORY(sc,m) ((sc)->as_methods->unbind_memory((sc),(m))) 127 1.3.2.2 nathanw 128 1.3.2.2 nathanw /* 129 1.3.2.2 nathanw * All chipset drivers must have this at the start of their softc. 130 1.3.2.2 nathanw */ 131 1.3.2.2 nathanw struct agp_softc { 132 1.3.2.2 nathanw struct device as_dev; 133 1.3.2.2 nathanw bus_space_tag_t as_apt; 134 1.3.2.2 nathanw int as_capoff; 135 1.3.2.2 nathanw bus_addr_t as_apaddr; 136 1.3.2.2 nathanw bus_size_t as_apsize; 137 1.3.2.3 nathanw int as_apflags; 138 1.3.2.2 nathanw bus_dma_tag_t as_dmat; 139 1.3.2.2 nathanw u_int32_t as_maxmem; /* allocation upper bound */ 140 1.3.2.2 nathanw u_int32_t as_allocated; /* amount allocated */ 141 1.3.2.2 nathanw enum agp_acquire_state as_state; 142 1.3.2.2 nathanw struct agp_memory_list as_memory; /* list of allocated memory */ 143 1.3.2.2 nathanw int as_nextid; /* next memory block id */ 144 1.3.2.2 nathanw int as_isopen; /* user device is open */ 145 1.3.2.2 nathanw #if 0 146 1.3.2.2 nathanw dev_t as_devnode; /* from make_dev */ 147 1.3.2.2 nathanw #endif 148 1.3.2.2 nathanw struct lock as_lock; /* lock for access to GATT */ 149 1.3.2.2 nathanw struct agp_methods *as_methods; /* chipset-dependent API */ 150 1.3.2.2 nathanw void *as_chipc; /* chipset-dependent state */ 151 1.3.2.2 nathanw pci_chipset_tag_t as_pc; 152 1.3.2.2 nathanw pcitag_t as_tag; 153 1.3.2.2 nathanw pcireg_t as_id; 154 1.3.2.2 nathanw }; 155 1.3.2.2 nathanw 156 1.3.2.2 nathanw struct agp_gatt { 157 1.3.2.2 nathanw u_int32_t ag_entries; 158 1.3.2.2 nathanw u_int32_t *ag_virtual; 159 1.3.2.2 nathanw bus_addr_t ag_physical; 160 1.3.2.2 nathanw bus_dmamap_t ag_dmamap; 161 1.3.2.2 nathanw bus_dma_segment_t ag_dmaseg; 162 1.3.2.2 nathanw size_t ag_size; 163 1.3.2.2 nathanw }; 164 1.3.2.2 nathanw 165 1.3.2.2 nathanw /* 166 1.3.2.2 nathanw * Functions private to the AGP code. 167 1.3.2.2 nathanw */ 168 1.3.2.2 nathanw void agp_flush_cache(void); 169 1.3.2.2 nathanw int agp_find_caps(pci_chipset_tag_t pct, pcitag_t pt); 170 1.3.2.2 nathanw int agp_map_aperture(struct pci_attach_args *pa, struct agp_softc *sc); 171 1.3.2.2 nathanw struct agp_gatt *agp_alloc_gatt(struct agp_softc *sc); 172 1.3.2.2 nathanw void agp_free_gatt(struct agp_softc *sc, struct agp_gatt *gatt); 173 1.3.2.2 nathanw int agp_generic_attach(struct agp_softc *sc); 174 1.3.2.2 nathanw int agp_generic_detach(struct agp_softc *sc); 175 1.3.2.2 nathanw int agp_generic_enable(struct agp_softc *sc, u_int32_t mode); 176 1.3.2.2 nathanw struct agp_memory *agp_generic_alloc_memory(struct agp_softc *sc, int type, 177 1.3.2.2 nathanw vsize_t size); 178 1.3.2.2 nathanw int agp_generic_free_memory(struct agp_softc *sc, struct agp_memory *mem); 179 1.3.2.2 nathanw int agp_generic_bind_memory(struct agp_softc *sc, struct agp_memory *mem, 180 1.3.2.2 nathanw off_t offset); 181 1.3.2.2 nathanw int agp_generic_unbind_memory(struct agp_softc *sc, struct agp_memory *mem); 182 1.3.2.2 nathanw 183 1.3.2.2 nathanw /* The vendor has already been matched when these functions are called */ 184 1.3.2.2 nathanw int agp_amd_match(const struct pci_attach_args *); 185 1.3.2.2 nathanw 186 1.3.2.2 nathanw int agp_ali_attach(struct device *parent, struct device *self, void *aux); 187 1.3.2.2 nathanw int agp_amd_attach(struct device *parent, struct device *self, void *aux); 188 1.3.2.2 nathanw int agp_i810_attach(struct device *parent, struct device *self, void *aux); 189 1.3.2.2 nathanw int agp_intel_attach(struct device *parent, struct device *self, void *aux); 190 1.3.2.2 nathanw int agp_via_attach(struct device *parent, struct device *self, void *aux); 191 1.3.2.2 nathanw int agp_sis_attach(struct device *parent, struct device *self, void *aux); 192 1.3.2.2 nathanw 193 1.3.2.2 nathanw int agp_alloc_dmamem(bus_dma_tag_t, size_t, int, bus_dmamap_t *, caddr_t *, 194 1.3.2.2 nathanw bus_addr_t *, bus_dma_segment_t *, int, int *); 195 1.3.2.2 nathanw void agp_free_dmamem(bus_dma_tag_t tag, size_t size, bus_dmamap_t map, 196 1.3.2.2 nathanw caddr_t vaddr, bus_dma_segment_t *seg, int nseg) ; 197 1.3.2.2 nathanw 198 1.3.2.2 nathanw /* 199 1.3.2.2 nathanw * Kernel API 200 1.3.2.2 nathanw */ 201 1.3.2.2 nathanw /* 202 1.3.2.2 nathanw * Find the AGP device and return it. 203 1.3.2.2 nathanw */ 204 1.3.2.2 nathanw void *agp_find_device(int); 205 1.3.2.2 nathanw 206 1.3.2.2 nathanw /* 207 1.3.2.2 nathanw * Return the current owner of the AGP chipset. 208 1.3.2.2 nathanw */ 209 1.3.2.2 nathanw enum agp_acquire_state agp_state(void *devcookie); 210 1.3.2.2 nathanw 211 1.3.2.2 nathanw /* 212 1.3.2.2 nathanw * Query the state of the AGP system. 213 1.3.2.2 nathanw */ 214 1.3.2.2 nathanw void agp_get_info(void *devhandle, struct agp_info *info); 215 1.3.2.2 nathanw 216 1.3.2.2 nathanw /* 217 1.3.2.2 nathanw * Acquire the AGP chipset for use by the kernel. Returns EBUSY if the 218 1.3.2.2 nathanw * AGP chipset is already acquired by another user. 219 1.3.2.2 nathanw */ 220 1.3.2.2 nathanw int agp_acquire(void *devhandle); 221 1.3.2.2 nathanw 222 1.3.2.2 nathanw /* 223 1.3.2.2 nathanw * Release the AGP chipset. 224 1.3.2.2 nathanw */ 225 1.3.2.2 nathanw int agp_release(void *devhandle); 226 1.3.2.2 nathanw 227 1.3.2.2 nathanw /* 228 1.3.2.2 nathanw * Enable the agp hardware with the relavent mode. The mode bits are 229 1.3.2.2 nathanw * defined in <dev/pci/agpreg.h> 230 1.3.2.2 nathanw */ 231 1.3.2.2 nathanw int agp_enable(void *devhandle, u_int32_t mode); 232 1.3.2.2 nathanw 233 1.3.2.2 nathanw /* 234 1.3.2.2 nathanw * Allocate physical memory suitable for mapping into the AGP 235 1.3.2.2 nathanw * aperture. The value returned is an opaque handle which can be 236 1.3.2.2 nathanw * passed to agp_bind(), agp_unbind() or agp_deallocate(). 237 1.3.2.2 nathanw */ 238 1.3.2.2 nathanw void *agp_alloc_memory(void *devhandle, int type, vsize_t bytes); 239 1.3.2.2 nathanw 240 1.3.2.2 nathanw /* 241 1.3.2.2 nathanw * Free memory which was allocated with agp_allocate(). 242 1.3.2.2 nathanw */ 243 1.3.2.2 nathanw void agp_free_memory(void *devhandle, void *handle); 244 1.3.2.2 nathanw 245 1.3.2.2 nathanw /* 246 1.3.2.2 nathanw * Bind memory allocated with agp_allocate() at a given offset within 247 1.3.2.2 nathanw * the AGP aperture. Returns EINVAL if the memory is already bound or 248 1.3.2.2 nathanw * the offset is not at an AGP page boundary. 249 1.3.2.2 nathanw */ 250 1.3.2.2 nathanw int agp_bind_memory(void *devhandle, void *handle, off_t offset); 251 1.3.2.2 nathanw 252 1.3.2.2 nathanw /* 253 1.3.2.2 nathanw * Unbind memory from the AGP aperture. Returns EINVAL if the memory 254 1.3.2.2 nathanw * is not bound. 255 1.3.2.2 nathanw */ 256 1.3.2.2 nathanw int agp_unbind_memory(void *devhandle, void *handle); 257 1.3.2.2 nathanw 258 1.3.2.2 nathanw /* 259 1.3.2.2 nathanw * Retrieve information about a memory block allocated with 260 1.3.2.2 nathanw * agp_alloc_memory(). 261 1.3.2.2 nathanw */ 262 1.3.2.2 nathanw void agp_memory_info(void *devhandle, void *handle, struct agp_memory_info *mi); 263 1.3.2.2 nathanw 264 1.3.2.2 nathanw #endif /* !_PCI_AGPPRIV_H_ */ 265
Indexes created Mon Oct 20 16:09:52 GMT 2025