Konsta Hölttä 93f7636268 gpu: nvgpu: unit test mapping cache maint errors ...

Target the recently extended error handling paths in gmmu mapping paths
in both passing and failing PTE entry update conditions. Verify the
number of calls to cache ops and that failed mappings leave the PTEs
cleared.

Bug 200778663

Change-Id: I1a69b514a6815e83fe0efaf1dcf1613d3fcb76aa
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2616042
(cherry picked from commit a132b0322b36b4014d90370ce0b415295f125faf)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2617911
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2021-10-28 21:06:02 -07:00

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