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FROMLIST: iommu/of: Request ACS from the PCI core when configuring IOMMU linkage

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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>
Bug: 140290589
Link: https://lore.kernel.org/lkml/20191121114918.2293-3-will@kernel.org/
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I3c689845ca493fbe037a2def2050a089036fb7d3
This commit is contained in:
Will Deacon 2019-10-25 13:29:00 +01:00 • committed by Todd Kjos
commit c5ce06fdc0
1 changed files with 1 additions and 0 deletions
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1
drivers/iommu/of_iommu.c
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@ -177,6 +177,7 @@ 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)) {