On 12/6/21 8:40 PM, Jason Gunthorpe wrote:
On Mon, Dec 06, 2021 at 09:59:03AM +0800, Lu Baolu wrote:@@ -941,48 +944,44 @@ int host1x_client_iommu_attach(struct host1x_client *client) * not the shared IOMMU domain, don't try to attach it to a different * domain. This allows using the IOMMU-backed DMA API. */ - if (domain && domain != tegra->domain) + client->group = NULL; + if (!client->dev->iommu_group || (domain && domain != tegra->domain)) + return iommu_device_set_dma_owner(client->dev, + DMA_OWNER_DMA_API, NULL); + + if (!tegra->domain) return 0;This if should be removed completely now Jason
Sure. Best regards, baolu _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
