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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> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2897026 Reviewed-by: Divya Singhatwaria <dsinghatwari@nvidia.com> Reviewed-by: Rajkumar Kasirajan <rkasirajan@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@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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