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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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14
drivers/gpu/nvgpu/os/linux/vgpu/vgpu_linux.c
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@@ -72,15 +72,13 @@ struct vgpu_priv_data *vgpu_get_priv_data(struct gk20a *g)
static void vgpu_remove_support(struct gk20a *g)
{
struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
vgpu_remove_support_common(g);
/* free mappings to registers, etc*/
if (l->bar1) {
iounmap(l->bar1);
l->bar1 = NULL;
if (g->bar1) {
iounmap((void __iomem *)g->bar1);
g->bar1 = 0U;
}
}
@@ -101,8 +99,8 @@ static void vgpu_init_vars(struct gk20a *g, struct gk20a_platform *platform)
nvgpu_mutex_init(&l->ctrl_privs_lock);
nvgpu_init_list_node(&l->ctrl_privs);
l->regs_saved = l->regs;
l->bar1_saved = l->bar1;
g->regs_saved = g->regs;
g->bar1_saved = g->bar1;
nvgpu_atomic_set(&g->clk_arb_global_nr, 0);
@@ -140,7 +138,7 @@ static int vgpu_init_support(struct platform_device *pdev)
err = PTR_ERR(regs);
goto fail;
}
l->bar1 = regs;
g->bar1 = (uintptr_t)regs;
l->bar1_mem = r;
}