Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 | /* drm_agpsupport.h -- DRM support for AGP/GART backend -*- linux-c -*- * Created: Mon Dec 13 09:56:45 1999 by faith@precisioninsight.com * * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Author: * Rickard E. (Rik) Faith <faith@valinux.com> * Gareth Hughes <gareth@valinux.com> */ #define __NO_VERSION__ #include "drmP.h" #include <linux/module.h> #if __REALLY_HAVE_AGP #if LINUX_VERSION_CODE < 0x020400 #include "agpsupport-pre24.h" #else #define DRM_AGP_GET (drm_agp_t *)inter_module_get("drm_agp") #define DRM_AGP_PUT inter_module_put("drm_agp") #endif static const drm_agp_t *drm_agp = NULL; int DRM(agp_info)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; agp_kern_info *kern; drm_agp_info_t info; if (!dev->agp || !dev->agp->acquired || !drm_agp->copy_info) return -EINVAL; kern = &dev->agp->agp_info; info.agp_version_major = kern->version.major; info.agp_version_minor = kern->version.minor; info.mode = kern->mode; info.aperture_base = kern->aper_base; info.aperture_size = kern->aper_size * 1024 * 1024; info.memory_allowed = kern->max_memory << PAGE_SHIFT; info.memory_used = kern->current_memory << PAGE_SHIFT; info.id_vendor = kern->device->vendor; info.id_device = kern->device->device; if (copy_to_user((drm_agp_info_t *)arg, &info, sizeof(info))) return -EFAULT; return 0; } int DRM(agp_acquire)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; int retcode; if (!dev->agp || dev->agp->acquired || !drm_agp->acquire) return -EINVAL; if ((retcode = drm_agp->acquire())) return retcode; dev->agp->acquired = 1; return 0; } int DRM(agp_release)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; if (!dev->agp || !dev->agp->acquired || !drm_agp->release) return -EINVAL; drm_agp->release(); dev->agp->acquired = 0; return 0; } void DRM(agp_do_release)(void) { if (drm_agp->release) drm_agp->release(); } int DRM(agp_enable)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_agp_mode_t mode; if (!dev->agp || !dev->agp->acquired || !drm_agp->enable) return -EINVAL; if (copy_from_user(&mode, (drm_agp_mode_t *)arg, sizeof(mode))) return -EFAULT; dev->agp->mode = mode.mode; drm_agp->enable(mode.mode); dev->agp->base = dev->agp->agp_info.aper_base; dev->agp->enabled = 1; return 0; } int DRM(agp_alloc)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_agp_buffer_t request; drm_agp_mem_t *entry; agp_memory *memory; unsigned long pages; u32 type; if (!dev->agp || !dev->agp->acquired) return -EINVAL; if (copy_from_user(&request, (drm_agp_buffer_t *)arg, sizeof(request))) return -EFAULT; if (!(entry = DRM(alloc)(sizeof(*entry), DRM_MEM_AGPLISTS))) return -ENOMEM; memset(entry, 0, sizeof(*entry)); pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE; type = (u32) request.type; if (!(memory = DRM(alloc_agp)(pages, type))) { DRM(free)(entry, sizeof(*entry), DRM_MEM_AGPLISTS); return -ENOMEM; } entry->handle = (unsigned long)memory->memory; entry->memory = memory; entry->bound = 0; entry->pages = pages; entry->prev = NULL; entry->next = dev->agp->memory; if (dev->agp->memory) dev->agp->memory->prev = entry; dev->agp->memory = entry; request.handle = entry->handle; request.physical = memory->physical; if (copy_to_user((drm_agp_buffer_t *)arg, &request, sizeof(request))) { dev->agp->memory = entry->next; dev->agp->memory->prev = NULL; DRM(free_agp)(memory, pages); DRM(free)(entry, sizeof(*entry), DRM_MEM_AGPLISTS); return -EFAULT; } return 0; } static drm_agp_mem_t *DRM(agp_lookup_entry)(drm_device_t *dev, unsigned long handle) { drm_agp_mem_t *entry; for (entry = dev->agp->memory; entry; entry = entry->next) { if (entry->handle == handle) return entry; } return NULL; } int DRM(agp_unbind)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_agp_binding_t request; drm_agp_mem_t *entry; if (!dev->agp || !dev->agp->acquired) return -EINVAL; if (copy_from_user(&request, (drm_agp_binding_t *)arg, sizeof(request))) return -EFAULT; if (!(entry = DRM(agp_lookup_entry)(dev, request.handle))) return -EINVAL; if (!entry->bound) return -EINVAL; return DRM(unbind_agp)(entry->memory); } int DRM(agp_bind)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_agp_binding_t request; drm_agp_mem_t *entry; int retcode; int page; if (!dev->agp || !dev->agp->acquired || !drm_agp->bind_memory) return -EINVAL; if (copy_from_user(&request, (drm_agp_binding_t *)arg, sizeof(request))) return -EFAULT; if (!(entry = DRM(agp_lookup_entry)(dev, request.handle))) return -EINVAL; if (entry->bound) return -EINVAL; page = (request.offset + PAGE_SIZE - 1) / PAGE_SIZE; if ((retcode = DRM(bind_agp)(entry->memory, page))) return retcode; entry->bound = dev->agp->base + (page << PAGE_SHIFT); DRM_DEBUG("base = 0x%lx entry->bound = 0x%lx\n", dev->agp->base, entry->bound); return 0; } int DRM(agp_free)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) { drm_file_t *priv = filp->private_data; drm_device_t *dev = priv->dev; drm_agp_buffer_t request; drm_agp_mem_t *entry; if (!dev->agp || !dev->agp->acquired) return -EINVAL; if (copy_from_user(&request, (drm_agp_buffer_t *)arg, sizeof(request))) return -EFAULT; if (!(entry = DRM(agp_lookup_entry)(dev, request.handle))) return -EINVAL; if (entry->bound) DRM(unbind_agp)(entry->memory); if (entry->prev) entry->prev->next = entry->next; else dev->agp->memory = entry->next; if (entry->next) entry->next->prev = entry->prev; DRM(free_agp)(entry->memory, entry->pages); DRM(free)(entry, sizeof(*entry), DRM_MEM_AGPLISTS); return 0; } drm_agp_head_t *DRM(agp_init)(void) { drm_agp_head_t *head = NULL; drm_agp = DRM_AGP_GET; if (drm_agp) { if (!(head = DRM(alloc)(sizeof(*head), DRM_MEM_AGPLISTS))) return NULL; memset((void *)head, 0, sizeof(*head)); drm_agp->copy_info(&head->agp_info); if (head->agp_info.chipset == NOT_SUPPORTED) { DRM(free)(head, sizeof(*head), DRM_MEM_AGPLISTS); return NULL; } head->memory = NULL; switch (head->agp_info.chipset) { case INTEL_GENERIC: head->chipset = "Intel"; break; case INTEL_LX: head->chipset = "Intel 440LX"; break; case INTEL_BX: head->chipset = "Intel 440BX"; break; case INTEL_GX: head->chipset = "Intel 440GX"; break; case INTEL_I810: head->chipset = "Intel i810"; break; #if LINUX_VERSION_CODE >= 0x020400 case INTEL_I815: head->chipset = "Intel i815"; break; case INTEL_I840: head->chipset = "Intel i840"; break; case INTEL_I850: head->chipset = "Intel i850"; break; #endif case VIA_GENERIC: head->chipset = "VIA"; break; case VIA_VP3: head->chipset = "VIA VP3"; break; case VIA_MVP3: head->chipset = "VIA MVP3"; break; #if LINUX_VERSION_CODE >= 0x020400 case VIA_MVP4: head->chipset = "VIA MVP4"; break; case VIA_APOLLO_KX133: head->chipset = "VIA Apollo KX133"; break; case VIA_APOLLO_KT133: head->chipset = "VIA Apollo KT133"; break; #endif case VIA_APOLLO_PRO: head->chipset = "VIA Apollo Pro"; break; case SIS_GENERIC: head->chipset = "SiS"; break; case AMD_GENERIC: head->chipset = "AMD"; break; case AMD_IRONGATE: head->chipset = "AMD Irongate"; break; case ALI_GENERIC: head->chipset = "ALi"; break; case ALI_M1541: head->chipset = "ALi M1541"; break; #if LINUX_VERSION_CODE >= 0x020402 case ALI_M1621: head->chipset = "ALi M1621"; break; case ALI_M1631: head->chipset = "ALi M1631"; break; case ALI_M1632: head->chipset = "ALi M1632"; break; case ALI_M1641: head->chipset = "ALi M1641"; break; case ALI_M1647: head->chipset = "ALi M1647"; break; case ALI_M1651: head->chipset = "ALi M1651"; break; #endif #if LINUX_VERSION_CODE >= 0x020406 case SVWRKS_HE: head->chipset = "Serverworks HE"; break; case SVWRKS_LE: head->chipset = "Serverworks LE"; break; case SVWRKS_GENERIC: head->chipset = "Serverworks Generic"; break; #endif default: head->chipset = "Unknown"; break; } #if LINUX_VERSION_CODE <= 0x020408 head->cant_use_aperture = 0; head->page_mask = ~(0xfff); #else head->cant_use_aperture = head->agp_info.cant_use_aperture; head->page_mask = head->agp_info.page_mask; #endif DRM_INFO("AGP %d.%d on %s @ 0x%08lx %ZuMB\n", head->agp_info.version.major, head->agp_info.version.minor, head->chipset, head->agp_info.aper_base, head->agp_info.aper_size); } return head; } void DRM(agp_uninit)(void) { DRM_AGP_PUT; drm_agp = NULL; } agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type) { if (!drm_agp->allocate_memory) return NULL; return drm_agp->allocate_memory(pages, type); } int DRM(agp_free_memory)(agp_memory *handle) { if (!handle || !drm_agp->free_memory) return 0; drm_agp->free_memory(handle); return 1; } int DRM(agp_bind_memory)(agp_memory *handle, off_t start) { if (!handle || !drm_agp->bind_memory) return -EINVAL; return drm_agp->bind_memory(handle, start); } int DRM(agp_unbind_memory)(agp_memory *handle) { if (!handle || !drm_agp->unbind_memory) return -EINVAL; return drm_agp->unbind_memory(handle); } #endif /* __REALLY_HAVE_AGP */ |