AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/iommu
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Robin Murphy 563b5cbe33 iommu/arm-smmu-v3: Cope with duplicated Stream IDs 
For PCI devices behind an aliasing PCIe-to-PCI/X bridge, the bridge
alias to DevFn 0.0 on the subordinate bus may match the original RID of
the device, resulting in the same SID being present in the device's
fwspec twice. This causes trouble later in arm_smmu_write_strtab_ent()
when we wind up visiting the STE a second time and find it already live.

Avoid the issue by giving arm_smmu_install_ste_for_dev() the cleverness
to skip over duplicates. It seems mildly counterintuitive compared to
preventing the duplicates from existing in the first place, but since
the DT and ACPI probe paths build their fwspecs differently, this is
actually the cleanest and most self-contained way to deal with it.

Cc: <stable@vger.kernel.org>
Fixes: 8f78515425 ("iommu/arm-smmu: Implement of_xlate() for SMMUv3")
Reported-by: Tomasz Nowicki <tomasz.nowicki@caviumnetworks.com>
Tested-by: Tomasz Nowicki <Tomasz.Nowicki@cavium.com>
Tested-by: Jayachandran C. <jnair@caviumnetworks.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-01-02 16:45:51 +00:00
..
amd_iommu_init.c iommu/amd: pr_err() strings should end with newlines 2017-09-27 17:01:35 +02:00
amd_iommu_proto.h IOMMU Updates for Linux v4.14 2017-09-09 15:03:24 -07:00
amd_iommu_types.h IOMMU Updates for Linux v4.14 2017-09-09 15:03:24 -07:00
amd_iommu_v2.c IOMMU Updates for Linux v4.14 2017-09-09 15:03:24 -07:00
amd_iommu.c genirq/irqdomain: Rename early argument of irq_domain_activate_irq() 2017-12-29 21:13:04 +01:00
arm-smmu-regs.h iommu/arm-smmu: Split out register defines 2017-08-15 17:34:48 +02:00
arm-smmu-v3.c iommu/arm-smmu-v3: Cope with duplicated Stream IDs 2018-01-02 16:45:51 +00:00
arm-smmu.c Merge branches 'iommu/arm/smmu', 'iommu/updates', 'iommu/vt-d', 'iommu/ipmmu-vmsa' and 'iommu/iova' into iommu-next-20171113.0 2017-11-13 12:40:51 -07:00
dma-iommu.c iommu/iova: Make rcache flush optional on IOVA allocation failure 2017-10-12 14:18:02 +02:00
dmar.c iommu/vt-d: Clear Page Request Overflow fault bit 2017-11-03 10:51:33 -06:00
exynos-iommu.c Merge branches 'iommu/fixes', 'arm/omap', 'arm/exynos', 'x86/amd', 'x86/vt-d' and 'core' into next 2017-10-13 17:32:24 +02:00
fsl_pamu_domain.c Merge branches 'arm/exynos', 'arm/renesas', 'arm/rockchip', 'arm/omap', 'arm/mediatek', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next 2017-09-01 11:31:42 +02:00
fsl_pamu_domain.h iommu/pamu: Fix PAMU boot crash 2017-08-23 16:28:09 +02:00
fsl_pamu.c Merge branches 'arm/exynos', 'arm/renesas', 'arm/rockchip', 'arm/omap', 'arm/mediatek', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next 2017-09-01 11:31:42 +02:00
fsl_pamu.h iommu/pamu: Fix PAMU boot crash 2017-08-23 16:28:09 +02:00
intel_irq_remapping.c genirq/irqdomain: Rename early argument of irq_domain_activate_irq() 2017-12-29 21:13:04 +01:00
intel-iommu.c iommu/vt-d: Fix scatterlist offset handling 2017-11-17 10:28:58 -07:00
intel-svm.c iommu/vt-d: Clear pasid table entry when memory unbound 2017-11-03 10:51:34 -06:00
io-pgtable-arm-v7s.c Merge branches 'iommu/fixes', 'arm/omap', 'arm/exynos', 'x86/amd', 'x86/vt-d' and 'core' into next 2017-10-13 17:32:24 +02:00
io-pgtable-arm.c iommu/io-pgtable-arm: Convert to IOMMU API TLB sync 2017-10-02 15:45:25 +02:00
io-pgtable.c
io-pgtable.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
iommu-sysfs.c iommu: Fix wrong freeing of iommu_device->dev 2017-08-15 13:58:48 +02:00
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 Merge branches 'arm/exynos', 'arm/renesas', 'arm/rockchip', 'arm/omap', 'arm/mediatek', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next 2017-09-01 11:31:42 +02:00
iova.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
ipmmu-vmsa.c iommu/ipmmu-vmsa: Hook up r8a7795 DT matching code 2017-11-06 10:29:39 -07:00
irq_remapping.c
irq_remapping.h
Kconfig iommu/qcom: Depend on HAS_DMA to fix compile error 2017-09-19 15:30:41 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
msm_iommu_hw-8xxx.h
msm_iommu.c iommu/msm: Add iommu_group support 2017-08-10 00:03:50 +02:00
msm_iommu.h
mtk_iommu_v1.c iommu/mediatek: Fix driver name 2017-11-06 10:40:53 -07:00
mtk_iommu.c Merge branches 'iommu/fixes', 'arm/omap', 'arm/exynos', 'x86/amd', 'x86/vt-d' and 'core' into next 2017-10-13 17:32:24 +02:00
mtk_iommu.h iommu/mediatek: Merge 2 M4U HWs into one iommu domain 2017-08-22 16:37:59 +02:00
of_iommu.c iommu/of: Remove PCI host bridge node check 2017-09-22 12:05:43 +02:00
omap-iommu-debug.c
omap-iommu.c iommu/omap: Add support to program multiple iommus 2017-09-19 11:32:05 +02:00
omap-iommu.h iommu/omap: Add support to program multiple iommus 2017-09-19 11:32:05 +02:00
omap-iopgtable.h
qcom_iommu.c iommu: qcom: wire up fault handler 2017-11-03 10:50:33 -06:00
rockchip-iommu.c Merge branches 'arm/exynos', 'arm/renesas', 'arm/rockchip', 'arm/omap', 'arm/mediatek', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next 2017-09-01 11:31:42 +02:00
s390-iommu.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tegra-gart.c iommu/tegra-gart: Add support for struct iommu_device 2017-08-17 16:31:34 +02:00
tegra-smmu.c arm/tegra: Call bus_set_iommu() after iommu_device_register() 2017-08-30 17:28:32 +02:00