mirror of
https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
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| Filename | Latest commit message | Latest commit date |
|---|---|---|
6e0498e24b
commit 9b45a7738eec52bf0f5d8d3d54e822962781c5f2 upstream.
The polling loop for the register change in iommu_ga_log_enable() needs
to have a udelay() in it. Otherwise the CPU might be faster than the
IOMMU hardware and wrongly trigger the WARN_ON() further down the code
stream. Use a 10us for udelay(), has there is some hardware where
activation of the GA log can take more than a 100ms.
A future optimization should move the activation check of the GA log
to the point where it gets used for the first time. But that is a
bigger change and not suitable for a fix.
Fixes:
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||
| .. | ||
| amd_iommu.c | ||
| amd_iommu.h | ||
| amd_iommu_debugfs.c | ||
| amd_iommu_init.c | ||
| amd_iommu_proto.h | ||
| amd_iommu_quirks.c | ||
| amd_iommu_types.h | ||
| amd_iommu_v2.c | ||
| arm-smmu-impl.c | ||
| arm-smmu-v3.c | ||
| arm-smmu.c | ||
| arm-smmu.h | ||
| dma-iommu.c | ||
| dmar.c | ||
| exynos-iommu.c | ||
| fsl_pamu.c | ||
| fsl_pamu.h | ||
| fsl_pamu_domain.c | ||
| fsl_pamu_domain.h | ||
| hyperv-iommu.c | ||
| intel-iommu-debugfs.c | ||
| intel-iommu.c | ||
| intel-pasid.c | ||
| intel-pasid.h | ||
| intel-svm.c | ||
| intel-trace.c | ||
| intel_irq_remapping.c | ||
| io-pgtable-arm-v7s.c | ||
| io-pgtable-arm.c | ||
| io-pgtable.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.c | ||
| msm_iommu.h | ||
| msm_iommu_hw-8xxx.h | ||
| mtk_iommu.c | ||
| mtk_iommu.h | ||
| mtk_iommu_v1.c | ||
| of_iommu.c | ||
| omap-iommu-debug.c | ||
| omap-iommu.c | ||
| omap-iommu.h | ||
| omap-iopgtable.h | ||
| qcom_iommu.c | ||
| rockchip-iommu.c | ||
| s390-iommu.c | ||
| tegra-gart.c | ||
| tegra-smmu.c | ||
| virtio-iommu.c | ||