diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c index 92cc7c685eda..9afa5f3e3c1c 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c @@ -280,6 +280,15 @@ nvkm_device_tegra_new(const struct nvkm_device_tegra_func *func, goto free; } + /** + * The IOMMU bit defines the upper limit of the GPU-addressable space. + * This will be refined in nouveau_ttm_init but we need to do it early + * for instmem to behave properly + */ + ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(tdev->func->iommu_bit)); + if (ret) + goto free; + nvkm_device_tegra_probe_iommu(tdev); ret = nvkm_device_tegra_power_up(tdev); |