drivers/gpu/drm/nouveau/nouveau_ttm.c

   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                 if (ret == -ENOSPC) {
  79                         reg->mm_node = NULL;
  80                         return 0;
  81                 }
  82                 return ret;
  83         }
  84
  85         return 0;
  86 }
  87
  88 const struct ttm_mem_type_manager_func nouveau_vram_manager = {
  89         .init = nouveau_manager_init,
  90         .takedown = nouveau_manager_fini,
  91         .get_node = nouveau_vram_manager_new,
  92         .put_node = nouveau_manager_del,
  93         .debug = nouveau_manager_debug,
  94 };
  95
  96 static int
  97 nouveau_gart_manager_new(struct ttm_mem_type_manager *man,
  98                          struct ttm_buffer_object *bo,
  99                          const struct ttm_place *place,
 100                          struct ttm_mem_reg *reg)
 101 {
 102         struct nouveau_bo *nvbo = nouveau_bo(bo);
 103         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
 104         int ret;
 105
 106         ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg);
 107         if (ret)
 108                 return ret;
 109
 110         reg->start = 0;
 111         return 0;
 112 }
 113
 114 const struct ttm_mem_type_manager_func nouveau_gart_manager = {
 115         .init = nouveau_manager_init,
 116         .takedown = nouveau_manager_fini,
 117         .get_node = nouveau_gart_manager_new,
 118         .put_node = nouveau_manager_del,
 119         .debug = nouveau_manager_debug
 120 };
 121
 122 static int
 123 nv04_gart_manager_new(struct ttm_mem_type_manager *man,
 124                       struct ttm_buffer_object *bo,
 125                       const struct ttm_place *place,
 126                       struct ttm_mem_reg *reg)
 127 {
 128         struct nouveau_bo *nvbo = nouveau_bo(bo);
 129         struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
 130         struct nouveau_mem *mem;
 131         int ret;
 132
 133         ret = nouveau_mem_new(&drm->master, nvbo->kind, nvbo->comp, reg);
 134         mem = nouveau_mem(reg);
 135         if (ret)
 136                 return ret;
 137
 138         ret = nvif_vmm_get(&mem->cli->vmm.vmm, PTES, false, 12, 0,
 139                            reg->num_pages << PAGE_SHIFT, &mem->vma[0]);
 140         if (ret) {
 141                 nouveau_mem_del(reg);
 142                 if (ret == -ENOSPC) {
 143                         reg->mm_node = NULL;
 144                         return 0;
 145                 }
 146                 return ret;
 147         }
 148
 149         reg->start = mem->vma[0].addr >> PAGE_SHIFT;
 150         return 0;
 151 }
 152
 153 const struct ttm_mem_type_manager_func nv04_gart_manager = {
 154         .init = nouveau_manager_init,
 155         .takedown = nouveau_manager_fini,
 156         .get_node = nv04_gart_manager_new,
 157         .put_node = nouveau_manager_del,
 158         .debug = nouveau_manager_debug
 159 };
 160
 161 int
 162 nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma)
 163 {
 164         struct drm_file *file_priv = filp->private_data;
 165         struct nouveau_drm *drm = nouveau_drm(file_priv->minor->dev);
 166
 167         return ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
 168 }
 169
 170 static int
 171 nouveau_ttm_init_host(struct nouveau_drm *drm, u8 kind)
 172 {
 173         struct nvif_mmu *mmu = &drm->client.mmu;
 174         int typei;
 175
 176         typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE |
 177                                             kind | NVIF_MEM_COHERENT);
 178         if (typei < 0)
 179                 return -ENOSYS;
 180
 181         drm->ttm.type_host[!!kind] = typei;
 182
 183         typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE | kind);
 184         if (typei < 0)
 185                 return -ENOSYS;
 186
 187         drm->ttm.type_ncoh[!!kind] = typei;
 188         return 0;
 189 }
 190
 191 int
 192 nouveau_ttm_init(struct nouveau_drm *drm)
 193 {
 194         struct nvkm_device *device = nvxx_device(&drm->client.device);
 195         struct nvkm_pci *pci = device->pci;
 196         struct nvif_mmu *mmu = &drm->client.mmu;
 197         struct drm_device *dev = drm->dev;
 198         int typei, ret;
 199
 200         ret = nouveau_ttm_init_host(drm, 0);
 201         if (ret)
 202                 return ret;
 203
 204         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA &&
 205             drm->client.device.info.chipset != 0x50) {
 206                 ret = nouveau_ttm_init_host(drm, NVIF_MEM_KIND);
 207                 if (ret)
 208                         return ret;
 209         }
 210
 211         if (drm->client.device.info.platform != NV_DEVICE_INFO_V0_SOC &&
 212             drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 213                 typei = nvif_mmu_type(mmu, NVIF_MEM_VRAM | NVIF_MEM_MAPPABLE |
 214                                            NVIF_MEM_KIND |
 215                                            NVIF_MEM_COMP |
 216                                            NVIF_MEM_DISP);
 217                 if (typei < 0)
 218                         return -ENOSYS;
 219
 220                 drm->ttm.type_vram = typei;
 221         } else {
 222                 drm->ttm.type_vram = -1;
 223         }
 224
 225         if (pci && pci->agp.bridge) {
 226                 drm->agp.bridge = pci->agp.bridge;
 227                 drm->agp.base = pci->agp.base;
 228                 drm->agp.size = pci->agp.size;
 229                 drm->agp.cma = pci->agp.cma;
 230         }
 231
 232         ret = ttm_bo_device_init(&drm->ttm.bdev,
 233                                   &nouveau_bo_driver,
 234                                   dev->anon_inode->i_mapping,
 235                                   dev->vma_offset_manager,
 236                                   drm->client.mmu.dmabits <= 32 ? true : false);
 237         if (ret) {
 238                 NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
 239                 return ret;
 240         }
 241
 242         /* VRAM init */
 243         drm->gem.vram_available = drm->client.device.info.ram_user;
 244
 245         arch_io_reserve_memtype_wc(device->func->resource_addr(device, 1),
 246                                    device->func->resource_size(device, 1));
 247
 248         ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_VRAM,
 249                               drm->gem.vram_available >> PAGE_SHIFT);
 250         if (ret) {
 251                 NV_ERROR(drm, "VRAM mm init failed, %d\n", ret);
 252                 return ret;
 253         }
 254
 255         drm->ttm.mtrr = arch_phys_wc_add(device->func->resource_addr(device, 1),
 256                                          device->func->resource_size(device, 1));
 257
 258         /* GART init */
 259         if (!drm->agp.bridge) {
 260                 drm->gem.gart_available = drm->client.vmm.vmm.limit;
 261         } else {
 262                 drm->gem.gart_available = drm->agp.size;
 263         }
 264
 265         ret = ttm_bo_init_mm(&drm->ttm.bdev, TTM_PL_TT,
 266                               drm->gem.gart_available >> PAGE_SHIFT);
 267         if (ret) {
 268                 NV_ERROR(drm, "GART mm init failed, %d\n", ret);
 269                 return ret;
 270         }
 271
 272         NV_INFO(drm, "VRAM: %d MiB\n", (u32)(drm->gem.vram_available >> 20));
 273         NV_INFO(drm, "GART: %d MiB\n", (u32)(drm->gem.gart_available >> 20));
 274         return 0;
 275 }
 276
 277 void
 278 nouveau_ttm_fini(struct nouveau_drm *drm)
 279 {
 280         struct nvkm_device *device = nvxx_device(&drm->client.device);
 281
 282         ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_VRAM);
 283         ttm_bo_clean_mm(&drm->ttm.bdev, TTM_PL_TT);
 284
 285         ttm_bo_device_release(&drm->ttm.bdev);
 286
 287         arch_phys_wc_del(drm->ttm.mtrr);
 288         drm->ttm.mtrr = 0;
 289         arch_io_free_memtype_wc(device->func->resource_addr(device, 1),
 290                                 device->func->resource_size(device, 1));
 291
 292 }