1 /* 2 * Copyright 2008 Advanced Micro Devices, Inc. 3 * Copyright 2008 Red Hat Inc. 4 * Copyright 2009 Jerome Glisse. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Dave Airlie 25 * Alex Deucher 26 * Jerome Glisse 27 */ 28 #include "drmP.h" 29 #include "drm.h" 30 #include "radeon_drm.h" 31 #include "radeon.h" 32 33 int radeon_gem_object_init(struct drm_gem_object *obj) 34 { 35 BUG(); 36 37 return 0; 38 } 39 40 void radeon_gem_object_free(struct drm_gem_object *gobj) 41 { 42 struct radeon_bo *robj = gem_to_radeon_bo(gobj); 43 44 if (robj) { 45 radeon_bo_unref(&robj); 46 } 47 } 48 49 int radeon_gem_object_create(struct radeon_device *rdev, int size, 50 int alignment, int initial_domain, 51 bool discardable, bool kernel, 52 struct drm_gem_object **obj) 53 { 54 struct radeon_bo *robj; 55 int r; 56 57 *obj = NULL; 58 /* At least align on page size */ 59 if (alignment < PAGE_SIZE) { 60 alignment = PAGE_SIZE; 61 } 62 r = radeon_bo_create(rdev, size, alignment, kernel, initial_domain, &robj); 63 if (r) { 64 if (r != -ERESTARTSYS) 65 DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", 66 size, initial_domain, alignment, r); 67 return r; 68 } 69 *obj = &robj->gem_base; 70 71 mutex_lock(&rdev->gem.mutex); 72 list_add_tail(&robj->list, &rdev->gem.objects); 73 mutex_unlock(&rdev->gem.mutex); 74 75 return 0; 76 } 77 78 int radeon_gem_object_pin(struct drm_gem_object *obj, uint32_t pin_domain, 79 uint64_t *gpu_addr) 80 { 81 struct radeon_bo *robj = gem_to_radeon_bo(obj); 82 int r; 83 84 r = radeon_bo_reserve(robj, false); 85 if (unlikely(r != 0)) 86 return r; 87 r = radeon_bo_pin(robj, pin_domain, gpu_addr); 88 radeon_bo_unreserve(robj); 89 return r; 90 } 91 92 void radeon_gem_object_unpin(struct drm_gem_object *obj) 93 { 94 struct radeon_bo *robj = gem_to_radeon_bo(obj); 95 int r; 96 97 r = radeon_bo_reserve(robj, false); 98 if (likely(r == 0)) { 99 radeon_bo_unpin(robj); 100 radeon_bo_unreserve(robj); 101 } 102 } 103 104 int radeon_gem_set_domain(struct drm_gem_object *gobj, 105 uint32_t rdomain, uint32_t wdomain) 106 { 107 struct radeon_bo *robj; 108 uint32_t domain; 109 int r; 110 111 /* FIXME: reeimplement */ 112 robj = gem_to_radeon_bo(gobj); 113 /* work out where to validate the buffer to */ 114 domain = wdomain; 115 if (!domain) { 116 domain = rdomain; 117 } 118 if (!domain) { 119 /* Do nothings */ 120 printk(KERN_WARNING "Set domain withou domain !\n"); 121 return 0; 122 } 123 if (domain == RADEON_GEM_DOMAIN_CPU) { 124 /* Asking for cpu access wait for object idle */ 125 r = radeon_bo_wait(robj, NULL, false); 126 if (r) { 127 printk(KERN_ERR "Failed to wait for object !\n"); 128 return r; 129 } 130 } 131 return 0; 132 } 133 134 int radeon_gem_init(struct radeon_device *rdev) 135 { 136 INIT_LIST_HEAD(&rdev->gem.objects); 137 return 0; 138 } 139 140 void radeon_gem_fini(struct radeon_device *rdev) 141 { 142 radeon_bo_force_delete(rdev); 143 } 144 145 146 /* 147 * GEM ioctls. 148 */ 149 int radeon_gem_info_ioctl(struct drm_device *dev, void *data, 150 struct drm_file *filp) 151 { 152 struct radeon_device *rdev = dev->dev_private; 153 struct drm_radeon_gem_info *args = data; 154 struct ttm_mem_type_manager *man; 155 156 man = &rdev->mman.bdev.man[TTM_PL_VRAM]; 157 158 args->vram_size = rdev->mc.real_vram_size; 159 args->vram_visible = (u64)man->size << PAGE_SHIFT; 160 if (rdev->stollen_vga_memory) 161 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory); 162 args->vram_visible -= radeon_fbdev_total_size(rdev); 163 args->gart_size = rdev->mc.gtt_size - rdev->cp.ring_size - 4096 - 164 RADEON_IB_POOL_SIZE*64*1024; 165 return 0; 166 } 167 168 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data, 169 struct drm_file *filp) 170 { 171 /* TODO: implement */ 172 DRM_ERROR("unimplemented %s\n", __func__); 173 return -ENOSYS; 174 } 175 176 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data, 177 struct drm_file *filp) 178 { 179 /* TODO: implement */ 180 DRM_ERROR("unimplemented %s\n", __func__); 181 return -ENOSYS; 182 } 183 184 int radeon_gem_create_ioctl(struct drm_device *dev, void *data, 185 struct drm_file *filp) 186 { 187 struct radeon_device *rdev = dev->dev_private; 188 struct drm_radeon_gem_create *args = data; 189 struct drm_gem_object *gobj; 190 uint32_t handle; 191 int r; 192 193 /* create a gem object to contain this object in */ 194 args->size = roundup(args->size, PAGE_SIZE); 195 r = radeon_gem_object_create(rdev, args->size, args->alignment, 196 args->initial_domain, false, 197 false, &gobj); 198 if (r) { 199 return r; 200 } 201 r = drm_gem_handle_create(filp, gobj, &handle); 202 /* drop reference from allocate - handle holds it now */ 203 drm_gem_object_unreference_unlocked(gobj); 204 if (r) { 205 return r; 206 } 207 args->handle = handle; 208 return 0; 209 } 210 211 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, 212 struct drm_file *filp) 213 { 214 /* transition the BO to a domain - 215 * just validate the BO into a certain domain */ 216 struct drm_radeon_gem_set_domain *args = data; 217 struct drm_gem_object *gobj; 218 struct radeon_bo *robj; 219 int r; 220 221 /* for now if someone requests domain CPU - 222 * just make sure the buffer is finished with */ 223 224 /* just do a BO wait for now */ 225 gobj = drm_gem_object_lookup(dev, filp, args->handle); 226 if (gobj == NULL) { 227 return -ENOENT; 228 } 229 robj = gem_to_radeon_bo(gobj); 230 231 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); 232 233 drm_gem_object_unreference_unlocked(gobj); 234 return r; 235 } 236 237 int radeon_mode_dumb_mmap(struct drm_file *filp, 238 struct drm_device *dev, 239 uint32_t handle, uint64_t *offset_p) 240 { 241 struct drm_gem_object *gobj; 242 struct radeon_bo *robj; 243 244 gobj = drm_gem_object_lookup(dev, filp, handle); 245 if (gobj == NULL) { 246 return -ENOENT; 247 } 248 robj = gem_to_radeon_bo(gobj); 249 *offset_p = radeon_bo_mmap_offset(robj); 250 drm_gem_object_unreference_unlocked(gobj); 251 return 0; 252 } 253 254 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, 255 struct drm_file *filp) 256 { 257 struct drm_radeon_gem_mmap *args = data; 258 259 return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); 260 } 261 262 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 263 struct drm_file *filp) 264 { 265 struct drm_radeon_gem_busy *args = data; 266 struct drm_gem_object *gobj; 267 struct radeon_bo *robj; 268 int r; 269 uint32_t cur_placement = 0; 270 271 gobj = drm_gem_object_lookup(dev, filp, args->handle); 272 if (gobj == NULL) { 273 return -ENOENT; 274 } 275 robj = gem_to_radeon_bo(gobj); 276 r = radeon_bo_wait(robj, &cur_placement, true); 277 switch (cur_placement) { 278 case TTM_PL_VRAM: 279 args->domain = RADEON_GEM_DOMAIN_VRAM; 280 break; 281 case TTM_PL_TT: 282 args->domain = RADEON_GEM_DOMAIN_GTT; 283 break; 284 case TTM_PL_SYSTEM: 285 args->domain = RADEON_GEM_DOMAIN_CPU; 286 default: 287 break; 288 } 289 drm_gem_object_unreference_unlocked(gobj); 290 return r; 291 } 292 293 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 294 struct drm_file *filp) 295 { 296 struct drm_radeon_gem_wait_idle *args = data; 297 struct drm_gem_object *gobj; 298 struct radeon_bo *robj; 299 int r; 300 301 gobj = drm_gem_object_lookup(dev, filp, args->handle); 302 if (gobj == NULL) { 303 return -ENOENT; 304 } 305 robj = gem_to_radeon_bo(gobj); 306 r = radeon_bo_wait(robj, NULL, false); 307 /* callback hw specific functions if any */ 308 if (robj->rdev->asic->ioctl_wait_idle) 309 robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj); 310 drm_gem_object_unreference_unlocked(gobj); 311 return r; 312 } 313 314 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 315 struct drm_file *filp) 316 { 317 struct drm_radeon_gem_set_tiling *args = data; 318 struct drm_gem_object *gobj; 319 struct radeon_bo *robj; 320 int r = 0; 321 322 DRM_DEBUG("%d \n", args->handle); 323 gobj = drm_gem_object_lookup(dev, filp, args->handle); 324 if (gobj == NULL) 325 return -ENOENT; 326 robj = gem_to_radeon_bo(gobj); 327 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 328 drm_gem_object_unreference_unlocked(gobj); 329 return r; 330 } 331 332 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 333 struct drm_file *filp) 334 { 335 struct drm_radeon_gem_get_tiling *args = data; 336 struct drm_gem_object *gobj; 337 struct radeon_bo *rbo; 338 int r = 0; 339 340 DRM_DEBUG("\n"); 341 gobj = drm_gem_object_lookup(dev, filp, args->handle); 342 if (gobj == NULL) 343 return -ENOENT; 344 rbo = gem_to_radeon_bo(gobj); 345 r = radeon_bo_reserve(rbo, false); 346 if (unlikely(r != 0)) 347 goto out; 348 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 349 radeon_bo_unreserve(rbo); 350 out: 351 drm_gem_object_unreference_unlocked(gobj); 352 return r; 353 } 354 355 int radeon_mode_dumb_create(struct drm_file *file_priv, 356 struct drm_device *dev, 357 struct drm_mode_create_dumb *args) 358 { 359 struct radeon_device *rdev = dev->dev_private; 360 struct drm_gem_object *gobj; 361 uint32_t handle; 362 int r; 363 364 args->pitch = radeon_align_pitch(rdev, args->width, args->bpp, 0) * ((args->bpp + 1) / 8); 365 args->size = args->pitch * args->height; 366 args->size = ALIGN(args->size, PAGE_SIZE); 367 368 r = radeon_gem_object_create(rdev, args->size, 0, 369 RADEON_GEM_DOMAIN_VRAM, 370 false, ttm_bo_type_device, 371 &gobj); 372 if (r) 373 return -ENOMEM; 374 375 r = drm_gem_handle_create(file_priv, gobj, &handle); 376 /* drop reference from allocate - handle holds it now */ 377 drm_gem_object_unreference_unlocked(gobj); 378 if (r) { 379 return r; 380 } 381 args->handle = handle; 382 return 0; 383 } 384 385 int radeon_mode_dumb_destroy(struct drm_file *file_priv, 386 struct drm_device *dev, 387 uint32_t handle) 388 { 389 return drm_gem_handle_delete(file_priv, handle); 390 } 391