LXR linux/drivers/gpu/drm/nouveau/nouveau

   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
  34static int
  35nouveau_manager_init(struct ttm_mem_type_manager *man, unsigned long psize)
  36{
  37        return 0;
  38}
  39
  40static int
  41nouveau_manager_fini(struct ttm_mem_type_manager *man)
  42{
  43        return 0;
  44}
  45
  46static void
  47nouveau_manager_del(struct ttm_mem_type_manager *man, struct ttm_mem_reg *reg)
  48{
  49        nouveau_mem_del(reg);
  50}
  51
  52static void
  53nouveau_manager_debug(struct ttm_mem_type_manager *man,
  54                      struct drm_printer *printer)
  55{
  56}
  57
  58static int
  59nouveau_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
  88const 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
  96static int
  97nouveau_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
 114const 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
 122static int
 123nv04_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
 153const 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
 161int
 162nouveau_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
 170static int
 171nouveau_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
 191int
 192nouveau_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
 277void
 278nouveau_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}
 293