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 drm_gem_object_unreference_unlocked(gobj); 73 return r; 74 } 75 gobj->driver_private = robj; 76 *obj = gobj; 77 return 0; 78 } 79 80 int radeon_gem_object_pin(struct drm_gem_object *obj, uint32_t pin_domain, 81 uint64_t *gpu_addr) 82 { 83 struct radeon_bo *robj = obj->driver_private; 84 int r; 85 86 r = radeon_bo_reserve(robj, false); 87 if (unlikely(r != 0)) 88 return r; 89 r = radeon_bo_pin(robj, pin_domain, gpu_addr); 90 radeon_bo_unreserve(robj); 91 return r; 92 } 93 94 void radeon_gem_object_unpin(struct drm_gem_object *obj) 95 { 96 struct radeon_bo *robj = obj->driver_private; 97 int r; 98 99 r = radeon_bo_reserve(robj, false); 100 if (likely(r == 0)) { 101 radeon_bo_unpin(robj); 102 radeon_bo_unreserve(robj); 103 } 104 } 105 106 int radeon_gem_set_domain(struct drm_gem_object *gobj, 107 uint32_t rdomain, uint32_t wdomain) 108 { 109 struct radeon_bo *robj; 110 uint32_t domain; 111 int r; 112 113 /* FIXME: reeimplement */ 114 robj = gobj->driver_private; 115 /* work out where to validate the buffer to */ 116 domain = wdomain; 117 if (!domain) { 118 domain = rdomain; 119 } 120 if (!domain) { 121 /* Do nothings */ 122 printk(KERN_WARNING "Set domain withou domain !\n"); 123 return 0; 124 } 125 if (domain == RADEON_GEM_DOMAIN_CPU) { 126 /* Asking for cpu access wait for object idle */ 127 r = radeon_bo_wait(robj, NULL, false); 128 if (r) { 129 printk(KERN_ERR "Failed to wait for object !\n"); 130 return r; 131 } 132 } 133 return 0; 134 } 135 136 int radeon_gem_init(struct radeon_device *rdev) 137 { 138 INIT_LIST_HEAD(&rdev->gem.objects); 139 return 0; 140 } 141 142 void radeon_gem_fini(struct radeon_device *rdev) 143 { 144 radeon_bo_force_delete(rdev); 145 } 146 147 148 /* 149 * GEM ioctls. 150 */ 151 int radeon_gem_info_ioctl(struct drm_device *dev, void *data, 152 struct drm_file *filp) 153 { 154 struct radeon_device *rdev = dev->dev_private; 155 struct drm_radeon_gem_info *args = data; 156 157 args->vram_size = rdev->mc.real_vram_size; 158 args->vram_visible = rdev->mc.real_vram_size; 159 if (rdev->stollen_vga_memory) 160 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory); 161 if (rdev->fbdev_rbo) 162 args->vram_visible -= radeon_bo_size(rdev->fbdev_rbo); 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 if (r) { 203 drm_gem_object_unreference_unlocked(gobj); 204 return r; 205 } 206 drm_gem_object_handle_unreference_unlocked(gobj); 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 -EINVAL; 228 } 229 robj = gobj->driver_private; 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_gem_mmap_ioctl(struct drm_device *dev, void *data, 238 struct drm_file *filp) 239 { 240 struct drm_radeon_gem_mmap *args = data; 241 struct drm_gem_object *gobj; 242 struct radeon_bo *robj; 243 244 gobj = drm_gem_object_lookup(dev, filp, args->handle); 245 if (gobj == NULL) { 246 return -EINVAL; 247 } 248 robj = gobj->driver_private; 249 args->addr_ptr = radeon_bo_mmap_offset(robj); 250 drm_gem_object_unreference_unlocked(gobj); 251 return 0; 252 } 253 254 int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 255 struct drm_file *filp) 256 { 257 struct drm_radeon_gem_busy *args = data; 258 struct drm_gem_object *gobj; 259 struct radeon_bo *robj; 260 int r; 261 uint32_t cur_placement = 0; 262 263 gobj = drm_gem_object_lookup(dev, filp, args->handle); 264 if (gobj == NULL) { 265 return -EINVAL; 266 } 267 robj = gobj->driver_private; 268 r = radeon_bo_wait(robj, &cur_placement, true); 269 switch (cur_placement) { 270 case TTM_PL_VRAM: 271 args->domain = RADEON_GEM_DOMAIN_VRAM; 272 break; 273 case TTM_PL_TT: 274 args->domain = RADEON_GEM_DOMAIN_GTT; 275 break; 276 case TTM_PL_SYSTEM: 277 args->domain = RADEON_GEM_DOMAIN_CPU; 278 default: 279 break; 280 } 281 drm_gem_object_unreference_unlocked(gobj); 282 return r; 283 } 284 285 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 286 struct drm_file *filp) 287 { 288 struct drm_radeon_gem_wait_idle *args = data; 289 struct drm_gem_object *gobj; 290 struct radeon_bo *robj; 291 int r; 292 293 gobj = drm_gem_object_lookup(dev, filp, args->handle); 294 if (gobj == NULL) { 295 return -EINVAL; 296 } 297 robj = gobj->driver_private; 298 r = radeon_bo_wait(robj, NULL, false); 299 /* callback hw specific functions if any */ 300 if (robj->rdev->asic->ioctl_wait_idle) 301 robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj); 302 drm_gem_object_unreference_unlocked(gobj); 303 return r; 304 } 305 306 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 307 struct drm_file *filp) 308 { 309 struct drm_radeon_gem_set_tiling *args = data; 310 struct drm_gem_object *gobj; 311 struct radeon_bo *robj; 312 int r = 0; 313 314 DRM_DEBUG("%d \n", args->handle); 315 gobj = drm_gem_object_lookup(dev, filp, args->handle); 316 if (gobj == NULL) 317 return -EINVAL; 318 robj = gobj->driver_private; 319 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 320 drm_gem_object_unreference_unlocked(gobj); 321 return r; 322 } 323 324 int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 325 struct drm_file *filp) 326 { 327 struct drm_radeon_gem_get_tiling *args = data; 328 struct drm_gem_object *gobj; 329 struct radeon_bo *rbo; 330 int r = 0; 331 332 DRM_DEBUG("\n"); 333 gobj = drm_gem_object_lookup(dev, filp, args->handle); 334 if (gobj == NULL) 335 return -EINVAL; 336 rbo = gobj->driver_private; 337 r = radeon_bo_reserve(rbo, false); 338 if (unlikely(r != 0)) 339 goto out; 340 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 341 radeon_bo_unreserve(rbo); 342 out: 343 drm_gem_object_unreference_unlocked(gobj); 344 return r; 345 } 346