From: Yong Wu <yong.wu@mediatek.com>
Date: Tue, 3 May 2022 07:14:10 +0000 (+0800)
Subject: iommu/mediatek: Allow IOMMU_DOMAIN_UNMANAGED for PCIe VFIO
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=32e1cccf68123bcd357c0115567d2ce3453cd3ed;p=linux.git

iommu/mediatek: Allow IOMMU_DOMAIN_UNMANAGED for PCIe VFIO

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>
---

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index bcdc932cd4737..0121d71c315fa 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);