110 lines
3.7 KiB
C
110 lines
3.7 KiB
C
/*
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* linux/platform/tegra/cpu-tegra.h
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*
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* Copyright (c) 2011-2018, 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
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __MACH_TEGRA_CPU_TEGRA_H
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#define __MACH_TEGRA_CPU_TEGRA_H
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#include <linux/fs.h>
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#include <linux/tegra_throttle.h>
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unsigned int tegra_getspeed(unsigned int cpu);
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int tegra_update_cpu_speed(unsigned long rate);
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int tegra_cpu_set_speed_cap(unsigned int *speed_cap);
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int tegra_cpu_set_speed_cap_locked(unsigned int *speed_cap);
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void tegra_cpu_set_volt_cap(unsigned int cap);
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#if defined(CONFIG_TEGRA_CPUQUIET) && defined(CONFIG_TEGRA_CLUSTER_CONTROL)
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int tegra_auto_hotplug_init(struct mutex *cpulock);
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void tegra_auto_hotplug_exit(void);
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void tegra_auto_hotplug_governor(unsigned int cpu_freq, bool suspend);
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#else
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static inline int tegra_auto_hotplug_init(struct mutex *cpu_lock)
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{ return 0; }
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static inline void tegra_auto_hotplug_exit(void)
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{ }
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static inline void tegra_auto_hotplug_governor(unsigned int cpu_freq,
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bool suspend)
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{ }
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#endif
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#ifdef CONFIG_CPU_FREQ
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struct cpufreq_frequency_table;
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/**
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* freq_table: List of frequencies allowed for cpu.
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* throttle_lowest_index: Lowest throttling frequency index.
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* throttle_highest_index: Highest throttling frequency index.
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* suspend_index: Suspend frequency index.
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* preserve_across_suspend: Preserve cpu frequency even after suspend
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* for restoring during resume.
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*/
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struct tegra_cpufreq_table_data {
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struct cpufreq_frequency_table *freq_table;
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int throttle_lowest_index;
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int throttle_highest_index;
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int suspend_index;
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bool preserve_across_suspend;
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};
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struct tegra_cpufreq_table_data *tegra_cpufreq_table_get(void);
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unsigned long tegra_emc_to_cpu_ratio(unsigned long cpu_rate);
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int tegra_update_mselect_rate(unsigned long cpu_rate);
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#if defined(CONFIG_ARCH_TEGRA_210_SOC)
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unsigned long tegra_emc_cpu_limit(unsigned long cpu_rate);
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#else
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static inline unsigned long tegra_emc_cpu_limit(unsigned long cpu_rate)
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{ return 0; }
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#endif
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int tegra_suspended_target(unsigned int target_freq);
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#else
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static inline unsigned long tegra_emc_to_cpu_ratio(unsigned long cpu_rate)
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{ return 0; }
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static inline int tegra_suspended_target(unsigned int target_freq)
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{ return -ENOSYS; }
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#endif
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#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_TEGRA_EDP_LIMITS)
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int tegra_update_cpu_edp_limits(void);
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int tegra_cpu_reg_mode_force_normal(bool force);
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#else
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static inline int tegra_update_cpu_edp_limits(void)
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{ return 0; }
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static inline int tegra_cpu_reg_mode_force_normal(bool force)
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{ return 0; }
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#endif
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#ifdef CONFIG_TEGRA_CPU_VOLT_CAP
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struct tegra_cooling_device *tegra_vc_get_cdev(void);
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#else
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static inline struct tegra_cooling_device *tegra_vc_get_cdev(void)
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{ return NULL; }
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#endif
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#ifdef CONFIG_TEGRA_HMP_CLUSTER_CONTROL
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unsigned long lp_to_virtual_gfreq(unsigned long lp_freq);
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int tegra_cpu_volt_cap_apply(int *cap_idx, int new_idx, int level);
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#else
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static inline unsigned long lp_to_virtual_gfreq(unsigned long freq)
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{ return freq; }
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static inline int tegra_cpu_volt_cap_apply(int *cap_idx, int new_idx, int level)
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{ return -ENOSYS; }
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#endif
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#endif /* __MACH_TEGRA_CPU_TEGRA_H */
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