1 // SPDX-License-Identifier: GPL-2.0 OR MIT 2 /* 3 * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA, 4 * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA, 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, sub license, 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 (including the 14 * next paragraph) shall be included in all copies or substantial portions 15 * of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 20 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 23 * USE OR OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 #include "nouveau_drv.h" 26 #include "nouveau_gem.h" 27 #include "nouveau_mem.h" 28 #include "nouveau_ttm.h" 29 30 #include <drm/drm_legacy.h> 31 32 #include <core/tegra.h> 33 34 static int 35 nouveau_manager_init(struct ttm_mem_type_manager *man, unsigned long psize) 36 { 37 return 0; 38 } 39 40 static int 41 nouveau_manager_fini(struct ttm_mem_type_manager *man) 42 { 43 return 0; 44 } 45 46 static void 47 nouveau_manager_del(struct ttm_mem_type_manager *man, struct ttm_mem_reg *reg) 48 { 49 nouveau_mem_del(reg); 50 } 51 52 static void 53 nouveau_manager_debug(struct ttm_mem_type_manager *man, 54 struct drm_printer *printer) 55 { 56 } 57 58 static int 59 nouveau_vram_manager_new(struct ttm_mem_type_manager *man, 60 struct ttm_buffer_object *bo, 61 const struct ttm_place *place, 62 struct ttm_mem_reg *reg) 63 { 64 struct nouveau_bo *nvbo = nouveau_bo(bo); 65 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 66 struct nouveau_mem *mem; 67 int ret; 68 69 if (drm->client.device.info.ram_size == 0) 70 return -ENOMEM; 71 72 ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg); 73 mem = nouveau_mem(reg); 74 if (ret) 75 return ret; 76 77 ret = nouveau_mem_vram(reg, nvbo->contig, nvbo->page); 78 if (ret) { 79 nouveau_mem_del(reg); 80 if (ret == -ENOSPC) { 81 reg->mm_node = NULL; 82 return 0; 83 } 84 return ret; 85 } 86 87 return 0; 88 } 89 90 const struct ttm_mem_type_manager_func nouveau_vram_manager = { 91 .init = nouveau_manager_init, 92 .takedown = nouveau_manager_fini, 93 .get_node = nouveau_vram_manager_new, 94 .put_node = nouveau_manager_del, 95 .debug = nouveau_manager_debug, 96 }; 97 98 static int 99 nouveau_gart_manager_new(struct ttm_mem_type_manager *man, 100 struct ttm_buffer_object *bo, 101 const struct ttm_place *place, 102 struct ttm_mem_reg *reg) 103 { 104 struct nouveau_bo *nvbo = nouveau_bo(bo); 105 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 106 struct nouveau_mem *mem; 107 int ret; 108 109 ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg); 110 mem = nouveau_mem(reg); 111 if (ret) 112 return ret; 113 114 reg->start = 0; 115 return 0; 116 } 117 118 const struct ttm_mem_type_manager_func nouveau_gart_manager = { 119 .init = nouveau_manager_init, 120 .takedown = nouveau_manager_fini, 121 .get_node = nouveau_gart_manager_new, 122 .put_node = nouveau_manager_del, 123 .debug = nouveau_manager_debug 124 }; 125 126 static int 127 nv04_gart_manager_new(struct ttm_mem_type_manager *man, 128 struct ttm_buffer_object *bo, 129 const struct ttm_place *place, 130 struct ttm_mem_reg *reg) 131 { 132 struct nouveau_bo *nvbo = nouveau_bo(bo); 133 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 134 struct nouveau_mem *mem; 135 int ret; 136 137 ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg); 138 mem = nouveau_mem(reg); 139 if (ret) 140 return ret; 141 142 ret = nvif_vmm_get(&mem->cli->vmm.vmm, PTES, false, 12, 0, 143 reg->num_pages << PAGE_SHIFT, &mem->vma[0]); 144 if (ret) { 145 nouveau_mem_del(reg); 146 if (ret == -ENOSPC) { 147 reg->mm_node = NULL; 148 return 0; 149 } 150 return ret; 151 } 152 153 reg->start = mem->vma[0].addr >> PAGE_SHIFT; 154 return 0; 155 } 156 157 const struct ttm_mem_type_manager_func nv04_gart_manager = { 158 .init = nouveau_manager_init, 159 .takedown = nouveau_manager_fini, 160 .get_node = nv04_gart_manager_new, 161 .put_node = nouveau_manager_del, 162 .debug = nouveau_manager_debug 163 }; 164 165 int 166 nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma) 167 { 168 struct drm_file *file_priv = filp->private_data; 169 struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev); 170 171 if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) 172 return drm_legacy_mmap(filp, vma); 173 174 return ttm_bo_mmap(filp, vma, &drm->ttm.bdev); 175 } 176 177 static int 178 nouveau_ttm_mem_global_init(struct drm_global_reference *ref) 179 { 180 return ttm_mem_global_init(ref->object); 181 } 182 183 static void 184 nouveau_ttm_mem_global_release(struct drm_global_reference *ref) 185 { 186 ttm_mem_global_release(ref->object); 187 } 188 189 int 190 nouveau_ttm_global_init(struct nouveau_drm *drm) 191 { 192 struct drm_global_reference *global_ref; 193 int ret; 194 195 global_ref = &drm->ttm.mem_global_ref; 196 global_ref->global_type = DRM_GLOBAL_TTM_MEM; 197 global_ref->size = sizeof(struct ttm_mem_global); 198 global_ref->init = &nouveau_ttm_mem_global_init; 199 global_ref->release = &nouveau_ttm_mem_global_release; 200 201 ret = drm_global_item_ref(global_ref); 202 if (unlikely(ret != 0)) { 203 DRM_ERROR("Failed setting up TTM memory accounting\n"); 204 drm->ttm.mem_global_ref.release = NULL; 205 return ret; 206 } 207 208 drm->ttm.bo_global_ref.mem_glob = global_ref->object; 209 global_ref = &drm->ttm.bo_global_ref.ref; 210 global_ref->global_type = DRM_GLOBAL_TTM_BO; 211 global_ref->size = sizeof(struct ttm_bo_global); 212 global_ref->init = &ttm_bo_global_init; 213 global_ref->release = &ttm_bo_global_release; 214 215 ret = drm_global_item_ref(global_ref); 216 if (unlikely(ret != 0)) { 217 DRM_ERROR("Failed setting up TTM BO subsystem\n"); 218 drm_global_item_unref(&drm->ttm.mem_global_ref); 219 drm->ttm.mem_global_ref.release = NULL; 220 return ret; 221 } 222 223 return 0; 224 } 225 226 void 227 nouveau_ttm_global_release(struct nouveau_drm *drm) 228 { 229 if (drm->ttm.mem_global_ref.release == NULL) 230 return; 231 232 drm_global_item_unref(&drm->ttm.bo_global_ref.ref); 233 drm_global_item_unref(&drm->ttm.mem_global_ref); 234 drm->ttm.mem_global_ref.release = NULL; 235 } 236 237 static int 238 nouveau_ttm_init_host(struct nouveau_drm *drm, u8 kind) 239 { 240 struct nvif_mmu *mmu = &drm->client.mmu; 241 int typei; 242 243 typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE | 244 kind | NVIF_MEM_COHERENT); 245 if (typei < 0) 246 return -ENOSYS; 247 248 drm->ttm.type_host[!!kind] = typei; 249 250 typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE | kind); 251 if (typei < 0) 252 return -ENOSYS; 253 254 drm->ttm.type_ncoh[!!kind] = typei; 255 return 0; 256 } 257 258 int 259 nouveau_ttm_init(struct nouveau_drm *drm) 260 { 261 struct nvkm_device *device = nvxx_device(&drm->client.device); 262 struct nvkm_pci *pci = device->pci; 263 struct nvif_mmu *mmu = &drm->client.mmu; 264 struct drm_device *dev = drm->dev; 265 int typei, ret; 266 267 ret = nouveau_ttm_init_host(drm, 0); 268 if (ret) 269 return ret; 270 271 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA && 272 drm->client.device.info.chipset != 0x50) { 273 ret = nouveau_ttm_init_host(drm, NVIF_MEM_KIND); 274 if (ret) 275 return ret; 276 } 277 278 if (drm->client.device.info.platform != NV_DEVICE_INFO_V0_SOC && 279 drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 280 typei = nvif_mmu_type(mmu, NVIF_MEM_VRAM | NVIF_MEM_MAPPABLE | 281 NVIF_MEM_KIND | 282 NVIF_MEM_COMP | 283 NVIF_MEM_DISP); 284 if (typei < 0) 285 return -ENOSYS; 286 287 drm->ttm.type_vram = typei; 288 } else { 289 drm->ttm.type_vram = -1; 290 } 291 292 if (pci && pci->agp.bridge) { 293 drm->agp.bridge = pci->agp.bridge; 294 drm->agp.base = pci->agp.base; 295 drm->agp.size = pci->agp.size; 296 drm->agp.cma = pci->agp.cma; 297 } 298 299 ret = nouveau_ttm_global_init(drm); 300 if (ret) 301 return ret; 302 303 ret = ttm_bo_device_init(&drm->ttm.bdev, 304 drm->ttm.bo_global_ref.ref.object, 305 &nouveau_bo_driver, 306 dev->anon_inode->i_mapping, 307 DRM_FILE_PAGE_OFFSET, 308 drm->client.mmu.dmabits <= 32 ? true : false); 309 if (ret) { 310 NV_ERROR(drm, "error initialising bo driver, %d\n", ret); 311 return ret; 312 } 313 314 /* VRAM init */ 315 drm->gem.vram_available = drm->client.device.info.ram_user; 316 317 arch_io_reserve_memtype_wc(device->func->resource_addr(device, 1), 318 device->func->resource_size(device, 1)); 319 320 ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM, 321 drm->gem.vram_available >> PAGE_SHIFT); 322 if (ret) { 323 NV_ERROR(drm, "VRAM mm init failed, %d\n", ret); 324 return ret; 325 } 326 327 drm->ttm.mtrr = arch_phys_wc_add(device->func->resource_addr(device, 1), 328 device->func->resource_size(device, 1)); 329 330 /* GART init */ 331 if (!drm->agp.bridge) { 332 drm->gem.gart_available = drm->client.vmm.vmm.limit; 333 } else { 334 drm->gem.gart_available = drm->agp.size; 335 } 336 337 ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT, 338 drm->gem.gart_available >> PAGE_SHIFT); 339 if (ret) { 340 NV_ERROR(drm, "GART mm init failed, %d\n", ret); 341 return ret; 342 } 343 344 NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20)); 345 NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20)); 346 return 0; 347 } 348 349 void 350 nouveau_ttm_fini(struct nouveau_drm *drm) 351 { 352 struct nvkm_device *device = nvxx_device(&drm->client.device); 353 354 ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM); 355 ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT); 356 357 ttm_bo_device_release(&drm->ttm.bdev); 358 359 nouveau_ttm_global_release(drm); 360 361 arch_phys_wc_del(drm->ttm.mtrr); 362 drm->ttm.mtrr = 0; 363 arch_io_free_memtype_wc(device->func->resource_addr(device, 1), 364 device->func->resource_size(device, 1)); 365 366 } 367