1dd44b5e5f
commit f9081b8ff5934b8d69c748d0200e844cadd2c667 upstream. The firmware found in some Qualcomm platforms intercepts writes to S2CR in order to replace bypass type streams with fault; and ignore S2CR updates of type fault. Detect this behavior and implement a custom write_s2cr function in order to trick the firmware into supporting bypass streams by the means of configuring the stream for translation using a reserved and disabled context bank. Also circumvent the problem of configuring faulting streams by configuring the stream as bypass. Cc: <stable@vger.kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Tested-by: Steev Klimaszewski <steev@kali.org> Acked-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/20201019182323.3162386-4-bjorn.andersson@linaro.org Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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.. | ||
amd | ||
arm | ||
intel | ||
dma-iommu.c | ||
exynos-iommu.c | ||
fsl_pamu_domain.c | ||
fsl_pamu_domain.h | ||
fsl_pamu.c | ||
fsl_pamu.h | ||
hyperv-iommu.c | ||
io-pgtable-arm-v7s.c | ||
io-pgtable-arm.c | ||
io-pgtable-arm.h | ||
io-pgtable.c | ||
ioasid.c | ||
iommu-debugfs.c | ||
iommu-sysfs.c | ||
iommu-traces.c | ||
iommu.c | ||
iova.c | ||
ipmmu-vmsa.c | ||
irq_remapping.c | ||
irq_remapping.h | ||
Kconfig | ||
Makefile | ||
msm_iommu_hw-8xxx.h | ||
msm_iommu.c | ||
msm_iommu.h | ||
mtk_iommu_v1.c | ||
mtk_iommu.c | ||
mtk_iommu.h | ||
of_iommu.c | ||
omap-iommu-debug.c | ||
omap-iommu.c | ||
omap-iommu.h | ||
omap-iopgtable.h | ||
rockchip-iommu.c | ||
s390-iommu.c | ||
sun50i-iommu.c | ||
tegra-gart.c | ||
tegra-smmu.c | ||
virtio-iommu.c |