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gpu: nvgpu: Execute pci settings deferred from Devinit.

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The devinit executes in parallel with PCIE link training
to reduce exit latency.  Therefore, all PCIE settings that
normally occur during devinit after the PCIE link is up are
deferred until nvgpu has resumed control.

Bug 2661545

Change-Id: Ifdd4f645b2e1791d93567cc34d6ab0691a25d101
Signed-off-by: Abdul Salam <absalam@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2210625
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Abdul Salam
2019-10-31 14:18:57 +05:30
committed by Alex Waterman
parent c4120eacbb
commit 767e505792
14 changed files with 127 additions and 5 deletions
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6
drivers/gpu/nvgpu/os/linux/module.c
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@@ -441,6 +441,12 @@ int gk20a_pm_finalize_poweron(struct device *dev)
g->sim->sim_init_late(g);
}
if (nvgpu_is_enabled(g, NVGPU_SUPPORT_DGPU_PCIE_SCRIPT_EXECUTE) &&
nvgpu_platform_is_silicon(g)) {
g->ops.clk.change_host_clk_source(g);
g->ops.xve.devinit_deferred_settings(g);
}
if (nvgpu_is_enabled(g, NVGPU_SUPPORT_DGPU_THERMAL_ALERT) &&
nvgpu_platform_is_silicon(g)) {
err = nvgpu_request_therm_irq(l);