dt 9355345610 gpu: nvgpu: Add IPA-PA cache to increase the performance ...

When GPU need to programmed with PA(physical address),
given IPA need to be converted to PA by querying Hypervisor.
As this is an IPC between OSes, the call will reduce the
performance badly. So this is adding a IPA-PA cache to improve
the performance. This will be more helpful in passthr config.

Bug 3277194

Change-Id: I6a3230d858977313a0ed0f33068055a3b516330a
Signed-off-by: dt <dt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2571814
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>

2021-09-07 10:28:58 -07:00

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