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gpu: nvgpu: move mapped regs to gk20a

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- 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>
This commit is contained in:
Richard Zhao
2021-03-11 20:54:38 -08:00
committed by mobile promotions
parent 0a25376965
commit 643eb158a3
18 changed files with 302 additions and 244 deletions
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5
drivers/gpu/nvgpu/os/linux/sim_pci.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2017-2021, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -75,7 +75,6 @@ void nvgpu_remove_sim_support_linux_pci(struct gk20a *g)
int nvgpu_init_sim_support_linux_pci(struct gk20a *g)
{
struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
struct sim_nvgpu_linux *sim_linux;
int err = -ENOMEM;
bool is_simulation;
@@ -91,7 +90,7 @@ int nvgpu_init_sim_support_linux_pci(struct gk20a *g)
return err;
g->sim = &sim_linux->sim;
g->sim->g = g;
sim_linux->regs = l->regs + sim_r();
sim_linux->regs = (void __iomem *)g->regs + sim_r();
sim_linux->remove_support_linux = nvgpu_remove_sim_support_linux_pci;
return 0;