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 26 #include <linux/limits.h> 27 #include <linux/swiotlb.h> 28 29 #include "nouveau_drv.h" 30 #include "nouveau_gem.h" 31 #include "nouveau_mem.h" 32 #include "nouveau_ttm.h" 33 34 #include <core/tegra.h> 35 36 static void 37 nouveau_manager_del(struct ttm_resource_manager *man, struct ttm_resource *reg) 38 { 39 nouveau_mem_del(reg); 40 } 41 42 static int 43 nouveau_vram_manager_new(struct ttm_resource_manager *man, 44 struct ttm_buffer_object *bo, 45 const struct ttm_place *place, 46 struct ttm_resource *reg) 47 { 48 struct nouveau_bo *nvbo = nouveau_bo(bo); 49 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 50 int ret; 51 52 if (drm->client.device.info.ram_size == 0) 53 return -ENOMEM; 54 55 ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg); 56 if (ret) 57 return ret; 58 59 ret = nouveau_mem_vram(reg, nvbo->contig, nvbo->page); 60 if (ret) { 61 nouveau_mem_del(reg); 62 return ret; 63 } 64 65 return 0; 66 } 67 68 const struct ttm_resource_manager_func nouveau_vram_manager = { 69 .alloc = nouveau_vram_manager_new, 70 .free = nouveau_manager_del, 71 }; 72 73 static int 74 nouveau_gart_manager_new(struct ttm_resource_manager *man, 75 struct ttm_buffer_object *bo, 76 const struct ttm_place *place, 77 struct ttm_resource *reg) 78 { 79 struct nouveau_bo *nvbo = nouveau_bo(bo); 80 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 81 int ret; 82 83 ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg); 84 if (ret) 85 return ret; 86 87 reg->start = 0; 88 return 0; 89 } 90 91 const struct ttm_resource_manager_func nouveau_gart_manager = { 92 .alloc = nouveau_gart_manager_new, 93 .free = nouveau_manager_del, 94 }; 95 96 static int 97 nv04_gart_manager_new(struct ttm_resource_manager *man, 98 struct ttm_buffer_object *bo, 99 const struct ttm_place *place, 100 struct ttm_resource *reg) 101 { 102 struct nouveau_bo *nvbo = nouveau_bo(bo); 103 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 104 struct nouveau_mem *mem; 105 int ret; 106 107 ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg); 108 mem = nouveau_mem(reg); 109 if (ret) 110 return ret; 111 112 ret = nvif_vmm_get(&mem->cli->vmm.vmm, PTES, false, 12, 0, 113 (long)reg->num_pages << PAGE_SHIFT, &mem->vma[0]); 114 if (ret) { 115 nouveau_mem_del(reg); 116 return ret; 117 } 118 119 reg->start = mem->vma[0].addr >> PAGE_SHIFT; 120 return 0; 121 } 122 123 const struct ttm_resource_manager_func nv04_gart_manager = { 124 .alloc = nv04_gart_manager_new, 125 .free = nouveau_manager_del, 126 }; 127 128 static int 129 nouveau_ttm_init_host(struct nouveau_drm *drm, u8 kind) 130 { 131 struct nvif_mmu *mmu = &drm->client.mmu; 132 int typei; 133 134 typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE | 135 kind | NVIF_MEM_COHERENT); 136 if (typei < 0) 137 return -ENOSYS; 138 139 drm->ttm.type_host[!!kind] = typei; 140 141 typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE | kind); 142 if (typei < 0) 143 return -ENOSYS; 144 145 drm->ttm.type_ncoh[!!kind] = typei; 146 return 0; 147 } 148 149 static int 150 nouveau_ttm_init_vram(struct nouveau_drm *drm) 151 { 152 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 153 struct ttm_resource_manager *man = kzalloc(sizeof(*man), GFP_KERNEL); 154 155 if (!man) 156 return -ENOMEM; 157 158 man->func = &nouveau_vram_manager; 159 160 ttm_resource_manager_init(man, 161 drm->gem.vram_available >> PAGE_SHIFT); 162 ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_VRAM, man); 163 ttm_resource_manager_set_used(man, true); 164 return 0; 165 } else { 166 return ttm_range_man_init(&drm->ttm.bdev, TTM_PL_VRAM, false, 167 drm->gem.vram_available >> PAGE_SHIFT); 168 } 169 } 170 171 static void 172 nouveau_ttm_fini_vram(struct nouveau_drm *drm) 173 { 174 struct ttm_resource_manager *man = ttm_manager_type(&drm->ttm.bdev, TTM_PL_VRAM); 175 176 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 177 ttm_resource_manager_set_used(man, false); 178 ttm_resource_manager_evict_all(&drm->ttm.bdev, man); 179 ttm_resource_manager_cleanup(man); 180 ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_VRAM, NULL); 181 kfree(man); 182 } else 183 ttm_range_man_fini(&drm->ttm.bdev, TTM_PL_VRAM); 184 } 185 186 static int 187 nouveau_ttm_init_gtt(struct nouveau_drm *drm) 188 { 189 struct ttm_resource_manager *man; 190 unsigned long size_pages = drm->gem.gart_available >> PAGE_SHIFT; 191 const struct ttm_resource_manager_func *func = NULL; 192 193 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) 194 func = &nouveau_gart_manager; 195 else if (!drm->agp.bridge) 196 func = &nv04_gart_manager; 197 else 198 return ttm_range_man_init(&drm->ttm.bdev, TTM_PL_TT, true, 199 size_pages); 200 201 man = kzalloc(sizeof(*man), GFP_KERNEL); 202 if (!man) 203 return -ENOMEM; 204 205 man->func = func; 206 man->use_tt = true; 207 ttm_resource_manager_init(man, size_pages); 208 ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_TT, man); 209 ttm_resource_manager_set_used(man, true); 210 return 0; 211 } 212 213 static void 214 nouveau_ttm_fini_gtt(struct nouveau_drm *drm) 215 { 216 struct ttm_resource_manager *man = ttm_manager_type(&drm->ttm.bdev, TTM_PL_TT); 217 218 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA && 219 drm->agp.bridge) 220 ttm_range_man_fini(&drm->ttm.bdev, TTM_PL_TT); 221 else { 222 ttm_resource_manager_set_used(man, false); 223 ttm_resource_manager_evict_all(&drm->ttm.bdev, man); 224 ttm_resource_manager_cleanup(man); 225 ttm_set_driver_manager(&drm->ttm.bdev, TTM_PL_TT, NULL); 226 kfree(man); 227 } 228 } 229 230 int 231 nouveau_ttm_init(struct nouveau_drm *drm) 232 { 233 struct nvkm_device *device = nvxx_device(&drm->client.device); 234 struct nvkm_pci *pci = device->pci; 235 struct nvif_mmu *mmu = &drm->client.mmu; 236 struct drm_device *dev = drm->dev; 237 bool need_swiotlb = false; 238 int typei, ret; 239 240 ret = nouveau_ttm_init_host(drm, 0); 241 if (ret) 242 return ret; 243 244 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA && 245 drm->client.device.info.chipset != 0x50) { 246 ret = nouveau_ttm_init_host(drm, NVIF_MEM_KIND); 247 if (ret) 248 return ret; 249 } 250 251 if (drm->client.device.info.platform != NV_DEVICE_INFO_V0_SOC && 252 drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 253 typei = nvif_mmu_type(mmu, NVIF_MEM_VRAM | NVIF_MEM_MAPPABLE | 254 NVIF_MEM_KIND | 255 NVIF_MEM_COMP | 256 NVIF_MEM_DISP); 257 if (typei < 0) 258 return -ENOSYS; 259 260 drm->ttm.type_vram = typei; 261 } else { 262 drm->ttm.type_vram = -1; 263 } 264 265 if (pci && pci->agp.bridge) { 266 drm->agp.bridge = pci->agp.bridge; 267 drm->agp.base = pci->agp.base; 268 drm->agp.size = pci->agp.size; 269 drm->agp.cma = pci->agp.cma; 270 } 271 272 #if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86) 273 need_swiotlb = is_swiotlb_active(); 274 #endif 275 276 ret = ttm_device_init(&drm->ttm.bdev, &nouveau_bo_driver, drm->dev->dev, 277 dev->anon_inode->i_mapping, 278 dev->vma_offset_manager, need_swiotlb, 279 drm->client.mmu.dmabits <= 32); 280 if (ret) { 281 NV_ERROR(drm, "error initialising bo driver, %d\n", ret); 282 return ret; 283 } 284 285 /* VRAM init */ 286 drm->gem.vram_available = drm->client.device.info.ram_user; 287 288 arch_io_reserve_memtype_wc(device->func->resource_addr(device, 1), 289 device->func->resource_size(device, 1)); 290 291 ret = nouveau_ttm_init_vram(drm); 292 if (ret) { 293 NV_ERROR(drm, "VRAM mm init failed, %d\n", ret); 294 return ret; 295 } 296 297 drm->ttm.mtrr = arch_phys_wc_add(device->func->resource_addr(device, 1), 298 device->func->resource_size(device, 1)); 299 300 /* GART init */ 301 if (!drm->agp.bridge) { 302 drm->gem.gart_available = drm->client.vmm.vmm.limit; 303 } else { 304 drm->gem.gart_available = drm->agp.size; 305 } 306 307 ret = nouveau_ttm_init_gtt(drm); 308 if (ret) { 309 NV_ERROR(drm, "GART mm init failed, %d\n", ret); 310 return ret; 311 } 312 313 mutex_init(&drm->ttm.io_reserve_mutex); 314 INIT_LIST_HEAD(&drm->ttm.io_reserve_lru); 315 316 NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20)); 317 NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20)); 318 return 0; 319 } 320 321 void 322 nouveau_ttm_fini(struct nouveau_drm *drm) 323 { 324 struct nvkm_device *device = nvxx_device(&drm->client.device); 325 326 nouveau_ttm_fini_vram(drm); 327 nouveau_ttm_fini_gtt(drm); 328 329 ttm_device_fini(&drm->ttm.bdev); 330 331 arch_phys_wc_del(drm->ttm.mtrr); 332 drm->ttm.mtrr = 0; 333 arch_io_free_memtype_wc(device->func->resource_addr(device, 1), 334 device->func->resource_size(device, 1)); 335 336 } 337