diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 6e7e283e18b5..3577ab2d5d69 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -211,8 +211,17 @@ nouveau_bo_new(struct nouveau_cli *cli, u64 size, int align, nvbo->bo.bdev = &drm->ttm.bdev; nvbo->cli = cli; - if (!nvxx_device(&drm->client.device)->func->cpu_coherent) - nvbo->force_coherent = flags & TTM_PL_FLAG_UNCACHED; + /* This is confusing, and doesn't actually mean we want an uncached + * mapping, but is what NOUVEAU_GEM_DOMAIN_COHERENT gets translated + * into in nouveau_gem_new(). + */ + if (flags & TTM_PL_FLAG_UNCACHED) { + /* Determine if we can get a cache-coherent map, forcing + * uncached mapping if we can't. + */ + if (mmu->type[drm->ttm.type_host].type & NVIF_MEM_UNCACHED) + nvbo->force_coherent = true; + } if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI) { nvbo->kind = (tile_flags & 0x0000ff00) >> 8; |