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gpu: nvgpu: Add new api for setting longer timeslice on dbg node

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Add new ioctl api for setting longer timeslice and get timeslice
inside 'dbg' dev node.
Update ioctl gpu_get_characteristic to pass the max timeslice value
Add debugfs to access and change the max timeslice value

Bug 1842244

Change-Id: I7e80f59162cf5d90496f9752fc128f5fa8dcc7d2
Signed-off-by: Mayur Poojary <mpoojary@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2471569
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Deepak Nibade <dnibade@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:
Mayur Poojary
2021-01-17 21:16:51 -08:00
committed by mobile promotions
parent 0335fa69ec
commit 6277d57936
26 changed files with 226 additions and 11 deletions
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4
drivers/gpu/nvgpu/os/linux/vgpu/vgpu_linux.c
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@@ -1,7 +1,7 @@
/*
* Virtualized GPU for Linux
*
* Copyright (c) 2018-2020, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2018-2021, 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,
@@ -39,6 +39,7 @@
#include <nvgpu/defaults.h>
#include <nvgpu/ltc.h>
#include <nvgpu/channel.h>
#include <nvgpu/tsg.h>
#include <nvgpu/regops.h>
#include <nvgpu/clk_arb.h>
#include <nvgpu/gr/gr.h>
@@ -454,6 +455,7 @@ int vgpu_probe(struct platform_device *pdev)
gk20a->poll_timeout_default = NVGPU_DEFAULT_POLL_TIMEOUT_MS;
gk20a->timeouts_disabled_by_user = false;
nvgpu_atomic_set(&gk20a->timeouts_disabled_refcount, 0);
gk20a->tsg_dbg_timeslice_max_us = NVGPU_TSG_DBG_TIMESLICE_MAX_US_DEFAULT;
vgpu_create_sysfs(dev);