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7e0351f291
When handling MMU faults, retry the first MMU fault buffer read multiple times until it contains valid data. There may be a delay between the MMU fault interrupt triggering and the fault buffer containing valid data. Jira NVGPU-9217 Change-Id: I06b442acaf54a4e036795de65345b423f9b424bf Signed-off-by: Austin Tajiri <atajiri@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2881909 Reviewed-by: Rajesh Devaraj <rdevaraj@nvidia.com> Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com> Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>