linux-kernel - [PATCH v2 11/15] dma-iommu: Reconfig group domain

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Message-ID: <1620656249-68890-12-git-send-email-john.garry@huawei.com>
Date:   Mon, 10 May 2021 22:17:25 +0800
From:   John Garry <john.garry@...wei.com>
To:     <joro@...tes.org>, <will@...nel.org>, <robin.murphy@....com>,
        <hch@....de>, <m.szyprowski@...sung.com>
CC:     <iommu@...ts.linux-foundation.org>, <baolu.lu@...ux.intel.com>,
        <linux-kernel@...r.kernel.org>, <linux-scsi@...r.kernel.org>,
        <linuxarm@...wei.com>, <sai.praneeth.prakhya@...el.com>,
        John Garry <john.garry@...wei.com>
Subject: [PATCH v2 11/15] dma-iommu: Reconfig group domain

Call iommu_reconfig_dev_group_dma() from iommu_setup_dma_ops() to reconfig
the group domain, if necessary.

Signed-off-by: John Garry <john.garry@...wei.com>
---
 drivers/iommu/dma-iommu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 574d7a901fd2..1d58c7a2d85d 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -1358,6 +1358,9 @@ void iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size)
 	 * underlying IOMMU driver needs to support via the dma-iommu layer.
 	 */
 	if (domain->type == IOMMU_DOMAIN_DMA) {
+		iommu_reconfig_dev_group_dma(dev);
+		/* domain may be stale ... */
+		domain = iommu_get_domain_for_dev(dev);
 		if (iommu_dma_init_domain(domain, dma_base, size, dev))
 			goto out_err;
 		dev->dma_ops = &iommu_dma_ops;
-- 
2.26.2