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iommu/amd: X2apic mode: re-enable after resume

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[ Upstream commit 01b297a48a26bcb96769505ac948db4603b72bd1 ]

Otherwise it is guaranteed to not work after the resume...

Fixes: 66929812955bb ("iommu/amd: Add support for X2APIC IOMMU interrupts")

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Link: https://lore.kernel.org/r/20211123161038.48009-3-mlevitsk@redhat.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Maxim Levitsky 2021-11-23 18:10:35 +02:00 committed by Greg Kroah-Hartman
parent fd77922c94
commit 0210cbc1ef
1 changed files with 4 additions and 1 deletions
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5
drivers/iommu/amd/init.c
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@ -2169,7 +2169,6 @@ static int iommu_setup_intcapxt(struct amd_iommu *iommu)
return ret;
}
iommu_feature_enable(iommu, CONTROL_INTCAPXT_EN);
return 0;
}
@ -2192,6 +2191,10 @@ static int iommu_init_irq(struct amd_iommu *iommu)
iommu->int_enabled = true;
enable_faults:
if (amd_iommu_xt_mode == IRQ_REMAP_X2APIC_MODE)
iommu_feature_enable(iommu, CONTROL_INTCAPXT_EN);
iommu_feature_enable(iommu, CONTROL_EVT_INT_EN);
if (iommu->ppr_log != NULL)