This is a note to let you know that I've just added the patch titled
iommu/sprd: Add missing force_aperture
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iommu-sprd-add-missing-force_aperture.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 2db7d72de3aa6db898507221e6c8f06467c3cc92
Author: Jason Gunthorpe <jgg@xxxxxxxx>
Date: Mon Jul 24 14:36:05 2023 -0300
iommu/sprd: Add missing force_aperture
[ Upstream commit d48a51286c698f7fe8efc688f23a532f4fe9a904 ]
force_aperture was intended to false only by GART drivers that have an
identity translation outside the aperture. This does not describe sprd, so
add the missing 'force_aperture = true'.
Fixes: b23e4fc4e3fa ("iommu: add Unisoc IOMMU basic driver")
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Acked-by: Chunyan Zhang <zhang.lyra@xxxxxxxxx>
Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/iommu/sprd-iommu.c b/drivers/iommu/sprd-iommu.c
index 723940e841612..6b11770e3d75a 100644
--- a/drivers/iommu/sprd-iommu.c
+++ b/drivers/iommu/sprd-iommu.c
@@ -147,6 +147,7 @@ static struct iommu_domain *sprd_iommu_domain_alloc(unsigned int domain_type)
dom->domain.geometry.aperture_start = 0;
dom->domain.geometry.aperture_end = SZ_256M - 1;
+ dom->domain.geometry.force_aperture = true;
return &dom->domain;
}
