Suravee Suthikulpanit 88cfff52fb iommu/amd: Fix performance counter initialization ... [ Upstream commit 6778ff5b21bd8e78c8bd547fd66437cf2657fd9b ] Certain AMD platforms enable power gating feature for IOMMU PMC, which prevents the IOMMU driver from updating the counter while trying to validate the PMC functionality in the init_iommu_perf_ctr(). This results in disabling PMC support and the following error message: "AMD-Vi: Unable to read/write to IOMMU perf counter" To workaround this issue, disable power gating temporarily by programming the counter source to non-zero value while validating the counter, and restore the prior state afterward. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Tested-by: Tj (Elloe Linux) <ml.linux@elloe.vision> Link: https://lore.kernel.org/r/20210208122712.5048-1-suravee.suthikulpanit@amd.com Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=201753 Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-04-12 12:53:03 +08:00
..
Kconfig	iommu/amd: Use cmpxchg_double() when updating 128-bit IRTE	2021-03-16 16:36:31 +08:00
Makefile	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
amd_iommu.c	iommu/amd: Fix sleeping in atomic in increase_address_space()	2021-04-12 12:52:53 +08:00
amd_iommu.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
amd_iommu_debugfs.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
amd_iommu_init.c	iommu/amd: Fix performance counter initialization	2021-04-12 12:53:03 +08:00
amd_iommu_proto.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
amd_iommu_quirks.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
amd_iommu_types.h	iommu/amd: Set DTE[IntTabLen] to represent 512 IRTEs	2021-03-16 16:42:06 +08:00
amd_iommu_v2.c	iommu/amd: Do not use IOMMUv2 functionality when SME is active	2021-03-16 16:36:00 +08:00
arm-smmu-impl.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
arm-smmu-v3.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
arm-smmu.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
arm-smmu.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
dma-iommu.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
dmar.c	iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built	2021-04-12 12:51:48 +08:00
exynos-iommu.c	iommu/exynos: add missing put_device() call in exynos_iommu_of_xlate()	2021-03-16 16:37:48 +08:00
fsl_pamu.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
fsl_pamu.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
fsl_pamu_domain.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
fsl_pamu_domain.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
hyperv-iommu.c	irqdomain/treewide: Keep firmware node unconditionally allocated	2021-03-16 16:32:20 +08:00
intel-iommu-debugfs.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
intel-iommu.c	iommu/vt-d: Do not use flush-queue when caching-mode is on	2021-04-12 12:51:57 +08:00
intel-pasid.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
intel-pasid.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
intel-svm.c	iommu/vt-d: Fix unaligned addresses for intel_flush_svm_range_dev()	2021-04-12 12:51:27 +08:00
intel-trace.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
intel_irq_remapping.c	iommu/intel: Fix memleak in intel_irq_remapping_alloc	2021-04-12 12:51:19 +08:00
io-pgtable-arm-v7s.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
io-pgtable-arm.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
io-pgtable.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
iommu-debugfs.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
iommu-sysfs.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
iommu-traces.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
iommu.c	iommu: Fix reference count leak in iommu_group_alloc.	2021-03-16 16:28:37 +08:00
iova.c	iommu/iova: Don't BUG on invalid PFNs	2021-03-16 16:34:47 +08:00
ipmmu-vmsa.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
irq_remapping.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
irq_remapping.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
msm_iommu.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
msm_iommu.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
msm_iommu_hw-8xxx.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
mtk_iommu.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
mtk_iommu.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
mtk_iommu_v1.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
of_iommu.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
omap-iommu-debug.c	iommu/omap: Check for failure of a call to omap_iommu_dump_ctx	2021-03-16 16:34:16 +08:00
omap-iommu.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
omap-iommu.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
omap-iopgtable.h	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
qcom_iommu.c	iommu/qcom: Fix local_base status check	2021-03-16 16:27:23 +08:00
rockchip-iommu.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
s390-iommu.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
tegra-gart.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
tegra-smmu.c	Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces.	2021-03-16 11:01:34 +08:00
virtio-iommu.c	iommu/virtio: Reverse arguments to list_add	2021-03-16 16:27:43 +08:00