iommu/amd: Return devid as alias for ACPI HID devices
[ Upstream commitpull/10/head5ebb1bc2d6
] ACPI HID devices do not actually have an alias for them in the IVRS. But dev_data->alias is still used for indexing into the IOMMU device table for devices being handled by the IOMMU. So for ACPI HID devices, we simply return the corresponding devid as an alias, as parsed from IVRS table. Signed-off-by: Arindam Nath <arindam.nath@amd.com> Fixes:2bf9a0a127
('iommu/amd: Add iommu support for ACPI HID devices') Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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62c15d061f
commit
f78ae314c6
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@ -253,7 +253,13 @@ static u16 get_alias(struct device *dev)
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/* The callers make sure that get_device_id() does not fail here */
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devid = get_device_id(dev);
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/* For ACPI HID devices, we simply return the devid as such */
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if (!dev_is_pci(dev))
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return devid;
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ivrs_alias = amd_iommu_alias_table[devid];
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pci_for_each_dma_alias(pdev, __last_alias, &pci_alias);
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if (ivrs_alias == pci_alias)
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