From: Yong Wu <yong.wu@mediatek.com>
Date: Tue, 3 May 2022 15:14:10 +0800
Subject: iommu/mediatek: Allow IOMMU_DOMAIN_UNMANAGED for PCIe VFIO
Git-commit: 32e1cccf68123bcd357c0115567d2ce3453cd3ed
Patch-mainline: v5.19-rc1
References: bsc#1205701
Allow the type IOMMU_DOMAIN_UNMANAGED since vfio_iommu_type1.c always call
iommu_domain_alloc. The PCIe EP works ok when going through vfio.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20220503071427.2285-20-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
drivers/iommu/mtk_iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index bcdc932cd473..0121d71c315f 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -446,7 +446,7 @@ static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type)
{
struct mtk_iommu_domain *dom;
- if (type != IOMMU_DOMAIN_DMA)
+ if (type != IOMMU_DOMAIN_DMA && type != IOMMU_DOMAIN_UNMANAGED)
return NULL;
dom = kzalloc(sizeof(*dom), GFP_KERNEL);