87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
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/*
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* Copyright (c) 2014-2016, 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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#ifndef __APE_ACTMON_H
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#define __APE_ACTMON_H
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#include <linux/spinlock.h>
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enum actmon_type {
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ACTMON_LOAD_SAMPLER,
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ACTMON_FREQ_SAMPLER,
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};
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enum actmon_state {
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ACTMON_UNINITIALIZED = -1,
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ACTMON_OFF = 0,
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ACTMON_ON = 1,
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ACTMON_SUSPENDED = 2,
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};
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/* Units:
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* - frequency in kHz
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* - coefficients, and thresholds in %
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* - sampling period in ms
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* - window in sample periods (value = setting + 1)
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*/
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struct actmon_dev {
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u32 reg;
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int irq;
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struct device *device;
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const char *dev_id;
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const char *con_id;
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const char *clk_name;
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struct clk *clk;
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unsigned long max_freq;
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unsigned long target_freq;
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unsigned long cur_freq;
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unsigned long suspend_freq;
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unsigned long avg_actv_freq;
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unsigned long avg_band_freq;
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unsigned int avg_sustain_coef;
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u32 avg_count;
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unsigned long boost_freq;
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unsigned long boost_freq_step;
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unsigned int boost_up_coef;
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unsigned int boost_down_coef;
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unsigned int boost_up_threshold;
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unsigned int boost_down_threshold;
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u8 up_wmark_window;
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u8 down_wmark_window;
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u8 avg_window_log2;
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u32 count_weight;
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enum actmon_type type;
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enum actmon_state state;
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enum actmon_state saved_state;
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spinlock_t lock;
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};
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struct actmon {
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struct clk *clk;
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unsigned long freq;
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unsigned long sampling_period;
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struct notifier_block clk_rc_nb;
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void __iomem *base;
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};
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int ape_actmon_init(struct platform_device *pdev);
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int ape_actmon_exit(struct platform_device *pdev);
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void actmon_rate_change(unsigned long freq, bool override);
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#endif
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