[PATCH v10 5/5] iommu/arm-smmu: Add global/context fault implementation hooks
Will Deacon
will at kernel.org
Mon Jul 13 09:44:51 EDT 2020
On Tue, Jul 07, 2020 at 10:00:17PM -0700, Krishna Reddy wrote:
> Add global/context fault hooks to allow vendor specific implementations
> override default fault interrupt handlers.
>
> Update NVIDIA implementation to override the default global/context fault
> interrupt handlers and handle interrupts across the two ARM MMU-500s that
> are programmed identically.
>
> Signed-off-by: Krishna Reddy <vdumpa at nvidia.com>
> ---
> drivers/iommu/arm-smmu-nvidia.c | 99 +++++++++++++++++++++++++++++++++
> drivers/iommu/arm-smmu.c | 17 +++++-
> drivers/iommu/arm-smmu.h | 3 +
> 3 files changed, 117 insertions(+), 2 deletions(-)
Given that faults shouldn't occur during normal operation, is this patch
actually necessary?
Will
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