Richard Zhao 643eb158a3 gpu: nvgpu: move mapped regs to gk20a ...

- moved reg fields to gk20a
- added os abstract register accessor in nvgpu/io.h
- defined linux register access abstract implementation
- hook up with posix. posix implementation of the register accessor uses
  the high 4 bit of address to identify register apertures then call the
  according callbacks.

It helps to unify code across OSes.

Bug 2999617

Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Change-Id: Ifcb737e4b4d5b1d8bae310ae50b1ce0aa04f750c
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2497937
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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>

2021-04-19 19:45:24 -07:00

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