drivers/gpu/drm/nouveau/nouveau_ttm.c

   1 /*
   2  * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, TX., USA,
   3  * All Rights Reserved.
   4  * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA,
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sub license,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26 #include "nouveau_drv.h"
  27 #include "nouveau_gem.h"
  28 #include "nouveau_mem.h"
  29 #include "nouveau_ttm.h"
  30
  31 #include <drm/drm_legacy.h>
  32
  33 #include <core/tegra.h>
  34
  35 static int
  36 nouveau_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
  37 {
  38         return 0;
  39 }
  40
  41 static int
  42 nouveau_manager_fini(struct ttm_mem_type_manager *man)
  43 {
  44         return 0;
  45 }
  46
  47 static void
  48 nouveau_manager_del(struct ttm_mem_type_manager *man, struct ttm_mem_reg *reg)
  49 {
  50         nouveau_mem_del(reg);
  51 }
  52
  53 static void
  54 nouveau_manager_debug(struct ttm_mem_type_manager *man,
  55                       struct drm_printer *printer)
  56 {
  57 }
  58
  59 static int
  60 nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
  61                          struct ttm_buffer_object *bo,
  62                          const struct ttm_place *place,
  63                          struct ttm_mem_reg *reg)
  64 {
  65         struct nouveau_bo *nvbo = nouveau_bo(bo);
  66         struct nouveau_drm *drm = nvbo->cli->drm;
  67         struct nouveau_mem *mem;
  68         int ret;
  69
  70         if (drm->client.device.info.ram_size == 0)
  71                 return -ENOMEM;
  72
  73         ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg);
  74         mem = nouveau_mem(reg);
  75         if (ret)
  76                 return ret;
  77
  78         ret = nouveau_mem_vram(reg, nvbo->contig, nvbo->page);
  79         if (ret) {
  80                 nouveau_mem_del(reg);
  81                 if (ret == -ENOSPC) {
  82                         reg->mm_node = NULL;
  83                         return 0;
  84                 }
  85                 return ret;
  86         }
  87
  88         return 0;
  89 }
  90
  91 const struct ttm_mem_type_manager_func nouveau_vram_manager = {
  92         .init = nouveau_manager_init,
  93         .takedown = nouveau_manager_fini,
  94         .get_node = nouveau_vram_manager_new,
  95         .put_node = nouveau_manager_del,
  96         .debug = nouveau_manager_debug,
  97 };
  98
  99 static int
 100 nouveau_gart_manager_new(struct ttm_mem_type_manager *man,
 101                          struct ttm_buffer_object *bo,
 102                          const struct ttm_place *place,
 103                          struct ttm_mem_reg *reg)
 104 {
 105         struct nouveau_bo *nvbo = nouveau_bo(bo);
 106         struct nouveau_drm *drm = nvbo->cli->drm;
 107         struct nouveau_mem *mem;
 108         int ret;
 109
 110         ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg);
 111         mem = nouveau_mem(reg);
 112         if (ret)
 113                 return ret;
 114
 115         reg->start = 0;
 116         return 0;
 117 }
 118
 119 const struct ttm_mem_type_manager_func nouveau_gart_manager = {
 120         .init = nouveau_manager_init,
 121         .takedown = nouveau_manager_fini,
 122         .get_node = nouveau_gart_manager_new,
 123         .put_node = nouveau_manager_del,
 124         .debug = nouveau_manager_debug
 125 };
 126
 127 static int
 128 nv04_gart_manager_new(struct ttm_mem_type_manager *man,
 129                       struct ttm_buffer_object *bo,
 130                       const struct ttm_place *place,
 131                       struct ttm_mem_reg *reg)
 132 {
 133         struct nouveau_bo *nvbo = nouveau_bo(bo);
 134         struct nouveau_drm *drm = nvbo->cli->drm;
 135         struct nouveau_mem *mem;
 136         int ret;
 137
 138         ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg);
 139         mem = nouveau_mem(reg);
 140         if (ret)
 141                 return ret;
 142
 143         ret = nvif_vmm_get(&mem->cli->vmm.vmm, PTES, false, 12, 0,
 144                            reg->num_pages << PAGE_SHIFT, &mem->vma[0]);
 145         if (ret) {
 146                 nouveau_mem_del(reg);
 147                 if (ret == -ENOSPC) {
 148                         reg->mm_node = NULL;
 149                         return 0;
 150                 }
 151                 return ret;
 152         }
 153
 154         reg->start = mem->vma[0].addr >> PAGE_SHIFT;
 155         return 0;
 156 }
 157
 158 const struct ttm_mem_type_manager_func nv04_gart_manager = {
 159         .init = nouveau_manager_init,
 160         .takedown = nouveau_manager_fini,
 161         .get_node = nv04_gart_manager_new,
 162         .put_node = nouveau_manager_del,
 163         .debug = nouveau_manager_debug
 164 };
 165
 166 int
 167 nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma)
 168 {
 169         struct drm_file *file_priv = filp->private_data;
 170         struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev);
 171
 172         if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
 173                 return drm_legacy_mmap(filp, vma);
 174
 175         return ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
 176 }
 177
 178 static int
 179 nouveau_ttm_mem_global_init(struct drm_global_reference *ref)
 180 {
 181         return ttm_mem_global_init(ref->object);
 182 }
 183
 184 static void
 185 nouveau_ttm_mem_global_release(struct drm_global_reference *ref)
 186 {
 187         ttm_mem_global_release(ref->object);
 188 }
 189
 190 int
 191 nouveau_ttm_global_init(struct nouveau_drm *drm)
 192 {
 193         struct drm_global_reference *global_ref;
 194         int ret;
 195
 196         global_ref = &drm->ttm.mem_global_ref;
 197         global_ref->global_type = DRM_GLOBAL_TTM_MEM;
 198         global_ref->size = sizeof(struct ttm_mem_global);
 199         global_ref->init = &nouveau_ttm_mem_global_init;
 200         global_ref->release = &nouveau_ttm_mem_global_release;
 201
 202         ret = drm_global_item_ref(global_ref);
 203         if (unlikely(ret != 0)) {
 204                 DRM_ERROR("Failed setting up TTM memory accounting\n");
 205                 drm->ttm.mem_global_ref.release = NULL;
 206                 return ret;
 207         }
 208
 209         drm->ttm.bo_global_ref.mem_glob = global_ref->object;
 210         global_ref = &drm->ttm.bo_global_ref.ref;
 211         global_ref->global_type = DRM_GLOBAL_TTM_BO;
 212         global_ref->size = sizeof(struct ttm_bo_global);
 213         global_ref->init = &ttm_bo_global_init;
 214         global_ref->release = &ttm_bo_global_release;
 215
 216         ret = drm_global_item_ref(global_ref);
 217         if (unlikely(ret != 0)) {
 218                 DRM_ERROR("Failed setting up TTM BO subsystem\n");
 219                 drm_global_item_unref(&drm->ttm.mem_global_ref);
 220                 drm->ttm.mem_global_ref.release = NULL;
 221                 return ret;
 222         }
 223
 224         return 0;
 225 }
 226
 227 void
 228 nouveau_ttm_global_release(struct nouveau_drm *drm)
 229 {
 230         if (drm->ttm.mem_global_ref.release == NULL)
 231                 return;
 232
 233         drm_global_item_unref(&drm->ttm.bo_global_ref.ref);
 234         drm_global_item_unref(&drm->ttm.mem_global_ref);
 235         drm->ttm.mem_global_ref.release = NULL;
 236 }
 237
 238 static int
 239 nouveau_ttm_init_host(struct nouveau_drm *drm, u8 kind)
 240 {
 241         struct nvif_mmu *mmu = &drm->client.mmu;
 242         int typei;
 243
 244         typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE |
 245                                             kind | NVIF_MEM_COHERENT);
 246         if (typei < 0)
 247                 return -ENOSYS;
 248
 249         drm->ttm.type_host[!!kind] = typei;
 250
 251         typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE | kind);
 252         if (typei < 0)
 253                 return -ENOSYS;
 254
 255         drm->ttm.type_ncoh[!!kind] = typei;
 256         return 0;
 257 }
 258
 259 int
 260 nouveau_ttm_init(struct nouveau_drm *drm)
 261 {
 262         struct nvkm_device *device = nvxx_device(&drm->client.device);
 263         struct nvkm_pci *pci = device->pci;
 264         struct nvif_mmu *mmu = &drm->client.mmu;
 265         struct drm_device *dev = drm->dev;
 266         int typei, ret;
 267
 268         ret = nouveau_ttm_init_host(drm, 0);
 269         if (ret)
 270                 return ret;
 271
 272         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA &&
 273             drm->client.device.info.chipset != 0x50) {
 274                 ret = nouveau_ttm_init_host(drm, NVIF_MEM_KIND);
 275                 if (ret)
 276                         return ret;
 277         }
 278
 279         if (drm->client.device.info.platform != NV_DEVICE_INFO_V0_SOC &&
 280             drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 281                 typei = nvif_mmu_type(mmu, NVIF_MEM_VRAM | NVIF_MEM_MAPPABLE |
 282                                            NVIF_MEM_KIND |
 283                                            NVIF_MEM_COMP |
 284                                            NVIF_MEM_DISP);
 285                 if (typei < 0)
 286                         return -ENOSYS;
 287
 288                 drm->ttm.type_vram = typei;
 289         } else {
 290                 drm->ttm.type_vram = -1;
 291         }
 292
 293         if (pci && pci->agp.bridge) {
 294                 drm->agp.bridge = pci->agp.bridge;
 295                 drm->agp.base = pci->agp.base;
 296                 drm->agp.size = pci->agp.size;
 297                 drm->agp.cma = pci->agp.cma;
 298         }
 299
 300         ret = nouveau_ttm_global_init(drm);
 301         if (ret)
 302                 return ret;
 303
 304         ret = ttm_bo_device_init(&drm->ttm.bdev,
 305                                   drm->ttm.bo_global_ref.ref.object,
 306                                   &nouveau_bo_driver,
 307                                   dev->anon_inode->i_mapping,
 308                                   DRM_FILE_PAGE_OFFSET,
 309                                   drm->client.mmu.dmabits <= 32 ? true : false);
 310         if (ret) {
 311                 NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
 312                 return ret;
 313         }
 314
 315         /* VRAM init */
 316         drm->gem.vram_available = drm->client.device.info.ram_user;
 317
 318         arch_io_reserve_memtype_wc(device->func->resource_addr(device, 1),
 319                                    device->func->resource_size(device, 1));
 320
 321         ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM,
 322                               drm->gem.vram_available >> PAGE_SHIFT);
 323         if (ret) {
 324                 NV_ERROR(drm, "VRAM mm init failed, %d\n", ret);
 325                 return ret;
 326         }
 327
 328         drm->ttm.mtrr = arch_phys_wc_add(device->func->resource_addr(device, 1),
 329                                          device->func->resource_size(device, 1));
 330
 331         /* GART init */
 332         if (!drm->agp.bridge) {
 333                 drm->gem.gart_available = drm->client.vmm.vmm.limit;
 334         } else {
 335                 drm->gem.gart_available = drm->agp.size;
 336         }
 337
 338         ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT,
 339                               drm->gem.gart_available >> PAGE_SHIFT);
 340         if (ret) {
 341                 NV_ERROR(drm, "GART mm init failed, %d\n", ret);
 342                 return ret;
 343         }
 344
 345         NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20));
 346         NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20));
 347         return 0;
 348 }
 349
 350 void
 351 nouveau_ttm_fini(struct nouveau_drm *drm)
 352 {
 353         struct nvkm_device *device = nvxx_device(&drm->client.device);
 354
 355         ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 356         ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT);
 357
 358         ttm_bo_device_release(&drm->ttm.bdev);
 359
 360         nouveau_ttm_global_release(drm);
 361
 362         arch_phys_wc_del(drm->ttm.mtrr);
 363         drm->ttm.mtrr = 0;
 364         arch_io_free_memtype_wc(device->func->resource_addr(device, 1),
 365                                 device->func->resource_size(device, 1));
 366
 367 }