diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2017-12-14 04:19:27 +0300 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2017-12-19 03:16:37 +0300 |
| commit | 74a39954a4900a7dea7010e3063e2bf16b23934b (patch) | |
| tree | f0f9dca38aec24eacabe89fa6cfb1b06d335627c /drivers/gpu/drm/nouveau/nouveau_ttm.c | |
| parent | f29f18eb952bc3e71deedf8bd8fc902f66853c48 (diff) | |
| download | linux-74a39954a4900a7dea7010e3063e2bf16b23934b.tar.xz | |
drm/nouveau: use alternate memory type for system-memory buffers with kind != 0
Fixes bug on Tegra where we'd strip kind information from system memory
(ie. all) buffers, resulting in misrendering.
Behaviour on dGPU should be unchanged.
Reported-by: Thierry Reding <treding@nvidia.com>
Fixes: d7722134b8 ("drm/nouveau: switch over to new memory and vmm interfaces")
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_ttm.c | 39 |
1 files changed, 29 insertions, 10 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c index 08b974b30482..dff51a0ee028 100644 --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c @@ -235,27 +235,46 @@ nouveau_ttm_global_release(struct nouveau_drm *drm) drm->ttm.mem_global_ref.release = NULL; } -int -nouveau_ttm_init(struct nouveau_drm *drm) +static int +nouveau_ttm_init_host(struct nouveau_drm *drm, u8 kind) { - struct nvkm_device *device = nvxx_device(&drm->client.device); - struct nvkm_pci *pci = device->pci; struct nvif_mmu *mmu = &drm->client.mmu; - struct drm_device *dev = drm->dev; - int typei, ret; + int typei; typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE | - NVIF_MEM_COHERENT); + kind | NVIF_MEM_COHERENT); if (typei < 0) return -ENOSYS; - drm->ttm.type_host = typei; + drm->ttm.type_host[!!kind] = typei; - typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE); + typei = nvif_mmu_type(mmu, NVIF_MEM_HOST | NVIF_MEM_MAPPABLE | kind); if (typei < 0) return -ENOSYS; - drm->ttm.type_ncoh = typei; + drm->ttm.type_ncoh[!!kind] = typei; + return 0; +} + +int +nouveau_ttm_init(struct nouveau_drm *drm) +{ + struct nvkm_device *device = nvxx_device(&drm->client.device); + struct nvkm_pci *pci = device->pci; + struct nvif_mmu *mmu = &drm->client.mmu; + struct drm_device *dev = drm->dev; + int typei, ret; + + ret = nouveau_ttm_init_host(drm, 0); + if (ret) + return ret; + + if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA && + drm->client.device.info.chipset != 0x50) { + ret = nouveau_ttm_init_host(drm, NVIF_MEM_KIND); + if (ret) + return ret; + } if (drm->client.device.info.platform != NV_DEVICE_INFO_V0_SOC && drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) { |