AuxXxilium/linux_dsm_epyc7002
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1dd44b5e5f
linux_dsm_epyc7002/drivers/iommu
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Bjorn Andersson 1dd44b5e5f iommu/arm-smmu-qcom: Implement S2CR quirk 
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>
2020-12-30 11:54:15 +01:00
..
amd iommu/amd: Set DTE[IntTabLen] to represent 512 IRTEs 2020-12-07 11:00:24 +00:00
arm iommu/arm-smmu-qcom: Implement S2CR quirk 2020-12-30 11:54:15 +01:00
intel iommu/vt-d: include conditionally on CONFIG_INTEL_IOMMU_SVM 2020-12-30 11:53:14 +01:00
dma-iommu.c dma-mapping updates for 5.10 2020-10-15 14:43:29 -07:00
exynos-iommu.c iommu/exynos: add missing put_device() call in exynos_iommu_of_xlate() 2020-09-24 10:48:29 +02:00
fsl_pamu_domain.c iommu/pamu: Use dev_iommu_priv_get/set() 2020-06-30 11:59:48 +02:00
fsl_pamu_domain.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
fsl_pamu.c iommu/pamu: Replace use of kzfree with kfree_sensitive 2020-09-18 10:59:04 +02:00
fsl_pamu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
hyperv-iommu.c x86_ioapic_Consolidate_IOAPIC_allocation 2020-09-16 16:52:32 +02:00
io-pgtable-arm-v7s.c iommu: Add gfp parameter to io_pgtable_ops->map() 2020-07-24 14:29:47 +02:00
io-pgtable-arm.c dma-mapping updates for 5.10 2020-10-15 14:43:29 -07:00
io-pgtable-arm.h iommu/io-pgtable-arm: Move some definitions to a header 2020-09-28 23:48:06 +01:00
io-pgtable.c iommu/io-pgtable-arm: Rationalise TCR handling 2020-01-10 15:52:24 +00:00
ioasid.c iommu/ioasid: Add custom allocators 2019-10-15 13:34:25 +02:00
iommu-debugfs.c iommu: Fix IOMMU debugfs fallout 2019-02-26 11:15:58 +01:00
iommu-sysfs.c drivers/iommu: Export core IOMMU API symbols to permit modular drivers 2019-12-23 14:06:05 +01:00
iommu-traces.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
iommu.c iommu: Check return of __iommu_attach_device() 2020-11-23 14:57:41 +00:00
iova.c iommu/iova: Replace cmpxchg with xchg in queue_iova 2020-09-04 12:11:06 +02:00
ipmmu-vmsa.c IOMMU Updates for Linux v5.9 2020-08-11 14:13:24 -07:00
irq_remapping.c iommu/irq_remapping: Consolidate irq domain lookup 2020-09-16 16:52:30 +02:00
irq_remapping.h iommu/irq_remapping: Consolidate irq domain lookup 2020-09-16 16:52:30 +02:00
Kconfig Merge branches 'arm/allwinner', 'arm/mediatek', 'arm/renesas', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/amd', 'x86/vt-d' and 'core' into next 2020-10-07 11:51:59 +02:00
Makefile More Arm SMMU updates for 5.9 2020-07-29 14:47:37 +02:00
msm_iommu_hw-8xxx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
msm_iommu.c iommu: Add gfp parameter to io_pgtable_ops->map() 2020-07-24 14:29:47 +02:00
msm_iommu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
mtk_iommu_v1.c iommu/mediatek: Do no use dev->archdata.iommu 2020-06-30 11:59:48 +02:00
mtk_iommu.c iommu/mediatek: Add support for MT8167 2020-09-18 10:29:12 +02:00
mtk_iommu.h iommu/mediatek: Add support for MT8167 2020-09-18 10:29:12 +02:00
of_iommu.c of/device: Add input id to of_dma_configure() 2020-07-28 15:51:32 +01:00
omap-iommu-debug.c iommu/omap: Check for failure of a call to omap_iommu_dump_ctx 2020-07-22 15:02:33 +02:00
omap-iommu.c Merge branches 'arm/renesas', 'arm/qcom', 'arm/mediatek', 'arm/omap', 'arm/exynos', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd' and 'core' into next 2020-07-29 14:42:00 +02:00
omap-iommu.h iommu/omap: add support for late attachment of iommu devices 2019-08-09 17:37:10 +02:00
omap-iopgtable.h iommu/omap: Fix -Woverflow warnings when compiling on 64-bit architectures 2020-03-04 16:24:46 +01:00
rockchip-iommu.c iommu/rockchip: Use dev_iommu_priv_get/set() 2020-06-30 11:59:48 +02:00
s390-iommu.c s390 updates for the 5.8 merge window 2020-06-08 12:05:31 -07:00
sun50i-iommu.c iommu/sun50i: Fix set-but-not-used variable warning 2020-09-04 13:39:45 +02:00
tegra-gart.c iommu/tegra: Use dev_iommu_priv_get/set() 2020-06-30 11:59:48 +02:00
tegra-smmu.c iommu/tegra-smmu: Allow to group clients in same swgroup 2020-09-24 12:32:32 +02:00
virtio-iommu.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00