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Subject[PATCH v4 02/16] iommu/of: Request ACS from the PCI core when configuring IOMMU linkage
Date
To avoid having to export 'pci_request_acs()' to modular IOMMU drivers,
move the call into the 'of_dma_configure()' path in a similar manner to
the way in which ACS is configured when probing via ACPI/IORT.

Signed-off-by: Will Deacon <will@kernel.org>
---
drivers/iommu/of_iommu.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index 026ad2b29dcd..4d2f02132e7a 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -179,6 +179,7 @@ const struct iommu_ops *of_iommu_configure(struct device *dev,
.np = master_np,
};

+ pci_request_acs();
err = pci_for_each_dma_alias(to_pci_dev(dev),
of_pci_iommu_init, &info);
} else if (dev_is_fsl_mc(dev)) {
--
2.24.1.735.g03f4e72817-goog
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