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git://nv-tegra.nvidia.com/linux-nvgpu.git
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d6359b5adc
Originally,
nvgpu uses deferrable timer for devfreq polling by default,
this leads to issues below because of unstable polling interval.
- out of time frequency scaling
- unstable GPU frequency scaling
This change lets users be able to specify devfreq timer through dt.
If the dt node 'devfreq-timer' equals to 'delayed', then gpu will uses
delayed timer for devfreq polling.
Bug 3823798
Change-Id: Idc0849b4a6b8af52fda8e88f5c831f183b7a27de
Signed-off-by: shaochunk <shaochunk@nvidia.com>
(cherry picked from commit c655a5e058)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2908703
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
30 lines
972 B
C
30 lines
972 B
C
/*
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* Copyright (c) 2016-2023, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef NVGPU_LINUX_DRIVER_COMMON
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#define NVGPU_LINUX_DRIVER_COMMON
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struct gk20a;
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int nvgpu_probe(struct gk20a *g,
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const char *debugfs_symlink);
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void nvgpu_init_gk20a(struct gk20a *g);
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void nvgpu_read_support_gpu_tools(struct gk20a *g);
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void nvgpu_read_devfreq_timer(struct gk20a *g);
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#endif
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