Deepak Nibade b7b107c1a1 gpu: nvgpu: Add HALs to implement pdb cache WAR ...

We have a h/w bug on some chips and we need to support below additional
HALs to implement a s/w WAR
gops.fifo.init_pdb_cache_war()
gops.fifo.deinit_pdb_cache_war()
gops.fb.apply_pdb_cache_war()

Add new API nvgpu_init_mm_pdb_cache_war() to initialize WAR sequence
and call this from MM initialization and before setting up rest of the
memory management units
Deinitialize WAR while cleaning up MM support

Add pdb_cache_war_mem member to gk20a to hold all the memory needed
for the WAR

Bug 200449545

Change-Id: Id2ac0d940c7881c7b0cf396413273c0f329a1a1f
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1834901
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2018-09-24 10:15:14 -07:00

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