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 33int radeon_gem_object_init(struct drm_gem_object *obj) 34{ 35 /* we do nothings here */ 36 return 0; 37} 38 39void 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 drm_gem_object_release(gobj); 49 kfree(gobj); 50} 51 52int radeon_gem_object_create(struct radeon_device *rdev, int size, 53 int alignment, int initial_domain, 54 bool discardable, bool kernel, 55 struct drm_gem_object **obj) 56{ 57 struct drm_gem_object *gobj; 58 struct radeon_bo *robj; 59 int r; 60 61 *obj = NULL; 62 gobj = drm_gem_object_alloc(rdev->ddev, size); 63 if (!gobj) { 64 return -ENOMEM; 65 } 66 /* At least align on page size */ 67 if (alignment < PAGE_SIZE) { 68 alignment = PAGE_SIZE; 69 } 70 r = radeon_bo_create(rdev, gobj, size, kernel, initial_domain, &robj); 71 if (r) { 72 if (r != -ERESTARTSYS) 73 DRM_ERROR("Failed to allocate GEM object (%d, %d, %u, %d)\n", 74 size, initial_domain, alignment, r); 75 drm_gem_object_unreference_unlocked(gobj); 76 return r; 77 } 78 gobj->driver_private = robj; 79 *obj = gobj; 80 return 0; 81} 82 83int radeon_gem_object_pin(struct drm_gem_object *obj, uint32_t pin_domain, 84 uint64_t *gpu_addr) 85{ 86 struct radeon_bo *robj = obj->driver_private; 87 int r; 88 89 r = radeon_bo_reserve(robj, false); 90 if (unlikely(r != 0)) 91 return r; 92 r = radeon_bo_pin(robj, pin_domain, gpu_addr); 93 radeon_bo_unreserve(robj); 94 return r; 95} 96 97void radeon_gem_object_unpin(struct drm_gem_object *obj) 98{ 99 struct radeon_bo *robj = obj->driver_private; 100 int r; 101 102 r = radeon_bo_reserve(robj, false); 103 if (likely(r == 0)) { 104 radeon_bo_unpin(robj); 105 radeon_bo_unreserve(robj); 106 } 107} 108 109int radeon_gem_set_domain(struct drm_gem_object *gobj, 110 uint32_t rdomain, uint32_t wdomain) 111{ 112 struct radeon_bo *robj; 113 uint32_t domain; 114 int r; 115 116 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 } 135 return 0; 136} 137 138int radeon_gem_init(struct radeon_device *rdev) 139{ 140 INIT_LIST_HEAD(&rdev->gem.objects); 141 return 0; 142} 143 144void radeon_gem_fini(struct radeon_device *rdev) 145{ 146 radeon_bo_force_delete(rdev); 147} 148 149 150/* 151 * GEM ioctls. 152 */ 153int radeon_gem_info_ioctl(struct drm_device *dev, void *data, 154 struct drm_file *filp) 155{ 156 struct radeon_device *rdev = dev->dev_private; 157 struct drm_radeon_gem_info *args = data; 158 159 args->vram_size = rdev->mc.real_vram_size; 160 args->vram_visible = rdev->mc.real_vram_size; 161 if (rdev->stollen_vga_memory) 162 args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory); 163 args->vram_visible -= radeon_fbdev_total_size(rdev); 164 args->gart_size = rdev->mc.gtt_size - rdev->cp.ring_size - 4096 - 165 RADEON_IB_POOL_SIZE*64*1024; 166 return 0; 167} 168 169int radeon_gem_pread_ioctl(struct drm_device *dev, void *data, 170 struct drm_file *filp) 171{ 172 /* TODO: implement */ 173 DRM_ERROR("unimplemented %s\n", __func__); 174 return -ENOSYS; 175} 176 177int radeon_gem_pwrite_ioctl(struct drm_device *dev, void *data, 178 struct drm_file *filp) 179{ 180 /* TODO: implement */ 181 DRM_ERROR("unimplemented %s\n", __func__); 182 return -ENOSYS; 183} 184 185int radeon_gem_create_ioctl(struct drm_device *dev, void *data, 186 struct drm_file *filp) 187{ 188 struct radeon_device *rdev = dev->dev_private; 189 struct drm_radeon_gem_create *args = data; 190 struct drm_gem_object *gobj; 191 uint32_t handle; 192 int r; 193 194 /* create a gem object to contain this object in */ 195 args->size = roundup(args->size, PAGE_SIZE); 196 r = radeon_gem_object_create(rdev, args->size, args->alignment, 197 args->initial_domain, false, 198 false, &gobj); 199 if (r) { 200 return r; 201 } 202 r = drm_gem_handle_create(filp, gobj, &handle); 203 /* drop reference from allocate - handle holds it now */ 204 drm_gem_object_unreference_unlocked(gobj); 205 if (r) { 206 return r; 207 } 208 args->handle = handle; 209 return 0; 210} 211 212int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, 213 struct drm_file *filp) 214{ 215 /* transition the BO to a domain - 216 * just validate the BO into a certain domain */ 217 struct drm_radeon_gem_set_domain *args = data; 218 struct drm_gem_object *gobj; 219 struct radeon_bo *robj; 220 int r; 221 222 /* for now if someone requests domain CPU - 223 * just make sure the buffer is finished with */ 224 225 /* just do a BO wait for now */ 226 gobj = drm_gem_object_lookup(dev, filp, args->handle); 227 if (gobj == NULL) { 228 return -ENOENT; 229 } 230 robj = gobj->driver_private; 231 232 r = radeon_gem_set_domain(gobj, args->read_domains, args->write_domain); 233 234 drm_gem_object_unreference_unlocked(gobj); 235 return r; 236} 237 238int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, 239 struct drm_file *filp) 240{ 241 struct drm_radeon_gem_mmap *args = data; 242 struct drm_gem_object *gobj; 243 struct radeon_bo *robj; 244 245 gobj = drm_gem_object_lookup(dev, filp, args->handle); 246 if (gobj == NULL) { 247 return -ENOENT; 248 } 249 robj = gobj->driver_private; 250 args->addr_ptr = radeon_bo_mmap_offset(robj); 251 drm_gem_object_unreference_unlocked(gobj); 252 return 0; 253} 254 255int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, 256 struct drm_file *filp) 257{ 258 struct drm_radeon_gem_busy *args = data; 259 struct drm_gem_object *gobj; 260 struct radeon_bo *robj; 261 int r; 262 uint32_t cur_placement = 0; 263 264 gobj = drm_gem_object_lookup(dev, filp, args->handle); 265 if (gobj == NULL) { 266 return -ENOENT; 267 } 268 robj = gobj->driver_private; 269 r = radeon_bo_wait(robj, &cur_placement, true); 270 switch (cur_placement) { 271 case TTM_PL_VRAM: 272 args->domain = RADEON_GEM_DOMAIN_VRAM; 273 break; 274 case TTM_PL_TT: 275 args->domain = RADEON_GEM_DOMAIN_GTT; 276 break; 277 case TTM_PL_SYSTEM: 278 args->domain = RADEON_GEM_DOMAIN_CPU; 279 default: 280 break; 281 } 282 drm_gem_object_unreference_unlocked(gobj); 283 return r; 284} 285 286int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, 287 struct drm_file *filp) 288{ 289 struct drm_radeon_gem_wait_idle *args = data; 290 struct drm_gem_object *gobj; 291 struct radeon_bo *robj; 292 int r; 293 294 gobj = drm_gem_object_lookup(dev, filp, args->handle); 295 if (gobj == NULL) { 296 return -ENOENT; 297 } 298 robj = gobj->driver_private; 299 r = radeon_bo_wait(robj, NULL, false); 300 /* callback hw specific functions if any */ 301 if (robj->rdev->asic->ioctl_wait_idle) 302 robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj); 303 drm_gem_object_unreference_unlocked(gobj); 304 return r; 305} 306 307int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data, 308 struct drm_file *filp) 309{ 310 struct drm_radeon_gem_set_tiling *args = data; 311 struct drm_gem_object *gobj; 312 struct radeon_bo *robj; 313 int r = 0; 314 315 DRM_DEBUG("%d \n", args->handle); 316 gobj = drm_gem_object_lookup(dev, filp, args->handle); 317 if (gobj == NULL) 318 return -ENOENT; 319 robj = gobj->driver_private; 320 r = radeon_bo_set_tiling_flags(robj, args->tiling_flags, args->pitch); 321 drm_gem_object_unreference_unlocked(gobj); 322 return r; 323} 324 325int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data, 326 struct drm_file *filp) 327{ 328 struct drm_radeon_gem_get_tiling *args = data; 329 struct drm_gem_object *gobj; 330 struct radeon_bo *rbo; 331 int r = 0; 332 333 DRM_DEBUG("\n"); 334 gobj = drm_gem_object_lookup(dev, filp, args->handle); 335 if (gobj == NULL) 336 return -ENOENT; 337 rbo = gobj->driver_private; 338 r = radeon_bo_reserve(rbo, false); 339 if (unlikely(r != 0)) 340 goto out; 341 radeon_bo_get_tiling_flags(rbo, &args->tiling_flags, &args->pitch); 342 radeon_bo_unreserve(rbo); 343out: 344 drm_gem_object_unreference_unlocked(gobj); 345 return r; 346} 347