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 int ret; 67 68 if (drm->client.device.info.ram_size == 0) 69 return -ENOMEM; 70 71 ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg); 72 if (ret) 73 return ret; 74 75 ret = nouveau_mem_vram(reg, nvbo->contig, nvbo->page); 76 if (ret) { 77 nouveau_mem_del(reg); 78 return ret; 79 } 80 81 return 0; 82 } 83 84 const struct ttm_mem_type_manager_func nouveau_vram_manager = { 85 .init = nouveau_manager_init, 86 .takedown = nouveau_manager_fini, 87 .get_node = nouveau_vram_manager_new, 88 .put_node = nouveau_manager_del, 89 .debug = nouveau_manager_debug, 90 }; 91 92 static int 93 nouveau_gart_manager_new(struct ttm_mem_type_manager *man, 94 struct ttm_buffer_object *bo, 95 const struct ttm_place *place, 96 struct ttm_mem_reg *reg) 97 { 98 struct nouveau_bo *nvbo = nouveau_bo(bo); 99 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 100 int ret; 101 102 ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg); 103 if (ret) 104 return ret; 105 106 reg->start = 0; 107 return 0; 108 } 109 110 const struct ttm_mem_type_manager_func nouveau_gart_manager = { 111 .init = nouveau_manager_init, 112 .takedown = nouveau_manager_fini, 113 .get_node = nouveau_gart_manager_new, 114 .put_node = nouveau_manager_del, 115 .debug = nouveau_manager_debug 116 }; 117 118 static int 119 nv04_gart_manager_new(struct ttm_mem_type_manager *man, 120 struct ttm_buffer_object *bo, 121 const struct ttm_place *place, 122 struct ttm_mem_reg *reg) 123 { 124 struct nouveau_bo *nvbo = nouveau_bo(bo); 125 struct nouveau_drm *drm = nouveau_bdev(bo->bdev); 126 struct nouveau_mem *mem; 127 int ret; 128 129 ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg); 130 mem = nouveau_mem(reg); 131 if (ret) 132 return ret; 133 134 ret = nvif_vmm_get(&mem->cli->vmm.vmm, PTES, false, 12, 0, 135 reg->num_pages << PAGE_SHIFT, &mem->vma[0]); 136 if (ret) { 137 nouveau_mem_del(reg); 138 return ret; 139 } 140 141 reg->start = mem->vma[0].addr >> PAGE_SHIFT; 142 return 0; 143 } 144 145 const struct ttm_mem_type_manager_func nv04_gart_manager = { 146 .init = nouveau_manager_init, 147 .takedown = nouveau_manager_fini, 148 .get_node = nv04_gart_manager_new, 149 .put_node = nouveau_manager_del, 150 .debug = nouveau_manager_debug 151 }; 152 153 int 154 nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma) 155 { 156 struct drm_file *file_priv = filp->private_data; 157 struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev); 158 159 return ttm_bo_mmap(filp, vma, &drm->ttm.bdev); 160 } 161 162 static int 163 nouveau_ttm_init_host(struct nouveau_drm *drm, u8 kind) 164 { 165 struct nvif_mmu *mmu = &drm->client.mmu; 166 int typei; 167 168 typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE | 169 kind | NVIF_MEM_COHERENT); 170 if (typei < 0) 171 return -ENOSYS; 172 173 drm->ttm.type_host[!!kind] = typei; 174 175 typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE | kind); 176 if (typei < 0) 177 return -ENOSYS; 178 179 drm->ttm.type_ncoh[!!kind] = typei; 180 return 0; 181 } 182 183 int 184 nouveau_ttm_init(struct nouveau_drm *drm) 185 { 186 struct nvkm_device *device = nvxx_device(&drm->client.device); 187 struct nvkm_pci *pci = device->pci; 188 struct nvif_mmu *mmu = &drm->client.mmu; 189 struct drm_device *dev = drm->dev; 190 int typei, ret; 191 192 ret = nouveau_ttm_init_host(drm, 0); 193 if (ret) 194 return ret; 195 196 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA && 197 drm->client.device.info.chipset != 0x50) { 198 ret = nouveau_ttm_init_host(drm, NVIF_MEM_KIND); 199 if (ret) 200 return ret; 201 } 202 203 if (drm->client.device.info.platform != NV_DEVICE_INFO_V0_SOC && 204 drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) { 205 typei = nvif_mmu_type(mmu, NVIF_MEM_VRAM | NVIF_MEM_MAPPABLE | 206 NVIF_MEM_KIND | 207 NVIF_MEM_COMP | 208 NVIF_MEM_DISP); 209 if (typei < 0) 210 return -ENOSYS; 211 212 drm->ttm.type_vram = typei; 213 } else { 214 drm->ttm.type_vram = -1; 215 } 216 217 if (pci && pci->agp.bridge) { 218 drm->agp.bridge = pci->agp.bridge; 219 drm->agp.base = pci->agp.base; 220 drm->agp.size = pci->agp.size; 221 drm->agp.cma = pci->agp.cma; 222 } 223 224 ret = ttm_bo_device_init(&drm->ttm.bdev, 225 &nouveau_bo_driver, 226 dev->anon_inode->i_mapping, 227 dev->vma_offset_manager, 228 drm->client.mmu.dmabits <= 32 ? true : false); 229 if (ret) { 230 NV_ERROR(drm, "error initialising bo driver, %d\n", ret); 231 return ret; 232 } 233 234 /* VRAM init */ 235 drm->gem.vram_available = drm->client.device.info.ram_user; 236 237 arch_io_reserve_memtype_wc(device->func->resource_addr(device, 1), 238 device->func->resource_size(device, 1)); 239 240 ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM, 241 drm->gem.vram_available >> PAGE_SHIFT); 242 if (ret) { 243 NV_ERROR(drm, "VRAM mm init failed, %d\n", ret); 244 return ret; 245 } 246 247 drm->ttm.mtrr = arch_phys_wc_add(device->func->resource_addr(device, 1), 248 device->func->resource_size(device, 1)); 249 250 /* GART init */ 251 if (!drm->agp.bridge) { 252 drm->gem.gart_available = drm->client.vmm.vmm.limit; 253 } else { 254 drm->gem.gart_available = drm->agp.size; 255 } 256 257 ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT, 258 drm->gem.gart_available >> PAGE_SHIFT); 259 if (ret) { 260 NV_ERROR(drm, "GART mm init failed, %d\n", ret); 261 return ret; 262 } 263 264 NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20)); 265 NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20)); 266 return 0; 267 } 268 269 void 270 nouveau_ttm_fini(struct nouveau_drm *drm) 271 { 272 struct nvkm_device *device = nvxx_device(&drm->client.device); 273 274 ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM); 275 ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT); 276 277 ttm_bo_device_release(&drm->ttm.bdev); 278 279 arch_phys_wc_del(drm->ttm.mtrr); 280 drm->ttm.mtrr = 0; 281 arch_io_free_memtype_wc(device->func->resource_addr(device, 1), 282 device->func->resource_size(device, 1)); 283 284 } 285