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 /* we do nothings here */ 36 return 0; 37 } 38 39 void radeon_gem_object_free(struct drm_gem_object *gobj) 40 { 41 struct radeon_bo *robj = gobj->driver_private; 42 43 gobj->driver_private = NULL; 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 drm_gem_object *gobj; 55 struct radeon_bo *robj; 56 int r; 57 58 *obj = NULL; 59 gobj = drm_gem_object_alloc(rdev->ddev, size); 60 if (!gobj) { 61 return -ENOMEM; 62 } 63 /* At least align on page size */ 64 if (alignment < PAGE_SIZE) { 65 alignment = PAGE_SIZE; 66 } 67 r = radeon_bo_create(rdev, gobj, size, kernel, initial_domain, &robj); 68 if (r) { 69 if (r != -ERESTARTSYS) 70 DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", 71 size, initial_domain, alignment, r); 72 mutex_lock(&rdev->ddev->struct_mutex); 73 drm_gem_object_unreference(gobj); 74 mutex_unlock(&rdev->ddev->struct_mutex); 75 return r; 76 } 77 gobj->driver_private = robj; 78 *obj = gobj; 79 return 0; 80 } 81 82 int radeon_gem_object_pin(struct drm_gem_object *obj, uint32_t pin_domain, 83 uint64_t *gpu_addr) 84 { 85 struct radeon_bo *robj = obj->driver_private; 86 int r; 87 88 r = radeon_bo_reserve(robj, false); 89 if (unlikely(r != 0)) 90 return r; 91 r = radeon_bo_pin(robj, pin_domain, gpu_addr); 92 radeon_bo_unreserve(robj); 93 return r; 94 } 95 96 void radeon_gem_object_unpin(struct drm_gem_object *obj) 97 { 98 struct radeon_bo *robj = obj->driver_private; 99 int r; 100 101 r = radeon_bo_reserve(robj, false); 102 if (likely(r == 0)) { 103 radeon_bo_unpin(robj); 104 radeon_bo_unreserve(robj); 105 } 106 } 107 108 int radeon_gem_set_domain(struct drm_gem_object *gobj, 109 uint32_t rdomain, uint32_t wdomain) 110 { 111 struct radeon_bo *robj; 112 uint32_t domain; 113 int r; 114 115 /* FIXME: reeimplement */ 116 robj = gobj->driver_private; 117 /* work out where to validate the buffer to */ 118 domain = wdomain; 119 if (!domain) { 120 domain = rdomain; 121 } 122 if (!domain) { 123 /* Do nothings */ 124 printk(KERN_WARNING "Set domain withou domain !\n"); 125 return 0; 126 } 127 if (domain == RADEON_GEM_DOMAIN_CPU) { 128 /* Asking for cpu access wait for object idle */ 129 r = radeon_bo_wait(robj, NULL, false); 130 if (r) { 131 printk(KERN_ERR "Failed to wait for object !\n"); 132 return r; 133 } 134 radeon_hdp_flush(robj->rdev); 135 } 136 return 0; 137 } 138 139 int radeon_gem_init(struct radeon_device *rdev) 140 { 141 INIT_LIST_HEAD(&rdev->gem.objects); 142 return 0; 143 } 144 145 void radeon_gem_fini(struct radeon_device *rdev) 146 { 147 radeon_bo_force_delete(rdev); 148 } 149 150 151 /* 152 * GEM ioctls. 153 */ 154 int radeon_gem_info_ioctl(struct drm_device *dev, void *data, 155 struct drm_file *filp) 156 { 157 struct radeon_device *rdev = dev->dev_private; 158 struct drm_radeon_gem_info *args = data; 159 160 args->vram_size = rdev->mc.real_vram_size; 161 args->vram_visible = rdev->mc.real_vram_size; 162 if (rdev->stollen_vga_memory) 163 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory); 164 if (rdev->fbdev_rbo) 165 args->vram_visible -= radeon_bo_size(rdev->fbdev_rbo); 166 args->gart_size = rdev->mc.gtt_size - rdev->cp.ring_size - 4096 - 167 RADEON_IB_POOL_SIZE*64*1024; 168 return 0; 169 } 170 171 int radeon_gem_pread_ioctl(struct drm_device *dev, void *data, 172 struct drm_file *filp) 173 { 174 /* TODO: implement */ 175 DRM_ERROR("unimplemented %s\n", __func__); 176 return -ENOSYS; 177 } 178 179 int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data, 180 struct drm_file *filp) 181 { 182 /* TODO: implement */ 183 DRM_ERROR("unimplemented %s\n", __func__); 184 return -ENOSYS; 185 } 186 187 int radeon_gem_create_ioctl(struct drm_device *dev, void *data, 188 struct drm_file *filp) 189 { 190 struct radeon_device *rdev = dev->dev_private; 191 struct drm_radeon_gem_create *args = data; 192 struct drm_gem_object *gobj; 193 uint32_t handle; 194 int r; 195 196 /* create a gem object to contain this object in */ 197 args->size = roundup(args->size, PAGE_SIZE); 198 r = radeon_gem_object_create(rdev, args->size, args->alignment, 199 args->initial_domain, false, 200 false, &gobj); 201 if (r) { 202 return r; 203 } 204 r = drm_gem_handle_create(filp, gobj, &handle); 205 if (r) { 206 mutex_lock(&dev->struct_mutex); 207 drm_gem_object_unreference(gobj); 208 mutex_unlock(&dev->struct_mutex); 209 return r; 210 } 211 mutex_lock(&dev->struct_mutex); 212 drm_gem_object_handle_unreference(gobj); 213 mutex_unlock(&dev->struct_mutex); 214 args->handle = handle; 215 return 0; 216 } 217 218 int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, 219 struct drm_file *filp) 220 { 221 /* transition the BO to a domain - 222 * just validate the BO into a certain domain */ 223 struct drm_radeon_gem_set_domain *args = data; 224 struct drm_gem_object *gobj; 225 struct radeon_bo *robj; 226 int r; 227 228 /* for now if someone requests domain CPU - 229 * just make sure the buffer is finished with */ 230 231 /* just do a BO wait for now */ 232 gobj = drm_gem_object_lookup(dev, filp, args->handle); 233 if (gobj == NULL) { 234 return -EINVAL; 235 } 236 robj = gobj->driver_private; 237 238 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); 239 240 mutex_lock(&dev->struct_mutex); 241 drm_gem_object_unreference(gobj); 242 mutex_unlock(&dev->struct_mutex); 243 return r; 244 } 245 246 int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, 247 struct drm_file *filp) 248 { 249 struct drm_radeon_gem_mmap *args = data; 250 struct drm_gem_object *gobj; 251 struct radeon_bo *robj; 252 253 gobj = drm_gem_object_lookup(dev, filp, args->handle); 254 if (gobj == NULL) { 255 return -EINVAL; 256 } 257 robj = gobj->driver_private; 258 args->addr_ptr = radeon_bo_mmap_offset(robj); 259 mutex_lock(&dev->struct_mutex); 260 drm_gem_object_unreference(gobj); 261 mutex_unlock(&dev->struct_mutex); 262 return 0; 263 } 264 265 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 266 struct drm_file *filp) 267 { 268 struct drm_radeon_gem_busy *args = data; 269 struct drm_gem_object *gobj; 270 struct radeon_bo *robj; 271 int r; 272 uint32_t cur_placement = 0; 273 274 gobj = drm_gem_object_lookup(dev, filp, args->handle); 275 if (gobj == NULL) { 276 return -EINVAL; 277 } 278 robj = gobj->driver_private; 279 r = radeon_bo_wait(robj, &cur_placement, true); 280 switch (cur_placement) { 281 case TTM_PL_VRAM: 282 args->domain = RADEON_GEM_DOMAIN_VRAM; 283 break; 284 case TTM_PL_TT: 285 args->domain = RADEON_GEM_DOMAIN_GTT; 286 break; 287 case TTM_PL_SYSTEM: 288 args->domain = RADEON_GEM_DOMAIN_CPU; 289 default: 290 break; 291 } 292 mutex_lock(&dev->struct_mutex); 293 drm_gem_object_unreference(gobj); 294 mutex_unlock(&dev->struct_mutex); 295 return r; 296 } 297 298 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 299 struct drm_file *filp) 300 { 301 struct drm_radeon_gem_wait_idle *args = data; 302 struct drm_gem_object *gobj; 303 struct radeon_bo *robj; 304 int r; 305 306 gobj = drm_gem_object_lookup(dev, filp, args->handle); 307 if (gobj == NULL) { 308 return -EINVAL; 309 } 310 robj = gobj->driver_private; 311 r = radeon_bo_wait(robj, NULL, false); 312 mutex_lock(&dev->struct_mutex); 313 drm_gem_object_unreference(gobj); 314 mutex_unlock(&dev->struct_mutex); 315 radeon_hdp_flush(robj->rdev); 316 return r; 317 } 318 319 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 320 struct drm_file *filp) 321 { 322 struct drm_radeon_gem_set_tiling *args = data; 323 struct drm_gem_object *gobj; 324 struct radeon_bo *robj; 325 int r = 0; 326 327 DRM_DEBUG("%d \n", args->handle); 328 gobj = drm_gem_object_lookup(dev, filp, args->handle); 329 if (gobj == NULL) 330 return -EINVAL; 331 robj = gobj->driver_private; 332 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 333 mutex_lock(&dev->struct_mutex); 334 drm_gem_object_unreference(gobj); 335 mutex_unlock(&dev->struct_mutex); 336 return r; 337 } 338 339 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 340 struct drm_file *filp) 341 { 342 struct drm_radeon_gem_get_tiling *args = data; 343 struct drm_gem_object *gobj; 344 struct radeon_bo *rbo; 345 int r = 0; 346 347 DRM_DEBUG("\n"); 348 gobj = drm_gem_object_lookup(dev, filp, args->handle); 349 if (gobj == NULL) 350 return -EINVAL; 351 rbo = gobj->driver_private; 352 r = radeon_bo_reserve(rbo, false); 353 if (unlikely(r != 0)) 354 goto out; 355 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 356 radeon_bo_unreserve(rbo); 357 out: 358 mutex_lock(&dev->struct_mutex); 359 drm_gem_object_unreference(gobj); 360 mutex_unlock(&dev->struct_mutex); 361 return r; 362 } 363