Messages in this thread | | | Date | Thu, 13 Oct 2022 08:07:46 +0100 | Subject | Re: [PATCH AUTOSEL 5.15 10/47] iommu/arm-smmu-v3: Make default domain type of HiSilicon PTT device to identity | From | John Garry <> |
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On 13/10/2022 01:20, Sasha Levin wrote: > From: Yicong Yang<yangyicong@hisilicon.com> > > [ Upstream commit 24b6c7798a0122012ca848ea0d25e973334266b0 ] > > The DMA operations of HiSilicon PTT device can only work properly with > identical mappings. So add a quirk for the device to force the domain > as passthrough. > > Acked-by: Will Deacon<will@kernel.org> > Signed-off-by: Yicong Yang<yangyicong@hisilicon.com> > Reviewed-by: John Garry<john.garry@huawei.com> > Link:https://lore.kernel.org/r/20220816114414.4092-2-yangyicong@huawei.com > Signed-off-by: Mathieu Poirier<mathieu.poirier@linaro.org> > Signed-off-by: Sasha Levin<sashal@kernel.org> > --- > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+)
I don't think that this commit should be backported to any stable tree. It's only required for a new driver.
Thanks, John
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