Messages in this thread | | | Date | Fri, 22 Sep 2023 10:11:38 +0200 | Subject | Re: [PATCH] iommu/mediatek: Fix share pgtable for iova over 4GB | From | AngeloGioacchino Del Regno <> |
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Il 19/08/23 10:14, Yong Wu ha scritto: > In mt8192/mt8186, there is only one MM IOMMU that supports 16GB iova > space, which is shared by display, vcodec and camera. These two SoC use > one pgtable and have not the flag SHARE_PGTABLE, we should also keep > share pgtable for this case. > > In mtk_iommu_domain_finalise, MM IOMMU always share pgtable, thus remove > the flag SHARE_PGTABLE checking. Infra IOMMU always uses independent > pgtable. > > Fixes: cf69ef46dbd9 ("iommu/mediatek: Fix two IOMMU share pagetable issue") > Reported-by: Laura Nao <laura.nao@collabora.com> > Closes: https://lore.kernel.org/linux-iommu/20230818154156.314742-1-laura.nao@collabora.com/ > Signed-off-by: Yong Wu <yong.wu@mediatek.com> > --- > Base on next-20230818. > --- > drivers/iommu/mtk_iommu.c | 9 ++++----- > 1 file changed, 4 insertions(+), 5 deletions(-)
Gentle ping for an important fix.
Thanks, Angelo
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