96 lines
2.5 KiB
C
Executable file
96 lines
2.5 KiB
C
Executable file
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* (C) COPYRIGHT 2021 Samsung Electronics Inc. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU licence.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for 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, you can access it online at
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* http://www.gnu.org/licenses/gpl-2.0.html.
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*/
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#ifndef _GPEXBE_CLOCK_H_
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#define _GPEXBE_CLOCK_H_
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struct freq_volt {
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int freq;
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int volt;
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};
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/**
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* gpexbe_clock_init() - initializes gpexbe_clock module
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*
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* Initializes based on values set in device tree and values returned by cal-if
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*
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* Return: 0 on success
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*/
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int gpexbe_clock_init(void);
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/**
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* gpexbe_clock_term() - terminates gpexbe_clock module
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*/
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void gpexbe_clock_term(void);
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/**
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* gpexbe_clock_get_rate_asv_table() - constructs freq-volt table
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* @fv_array: array to be filled by function
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* @level_num: number of freq-volt levels to fill
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*
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* Constructs frequency-voltage table by getting the information from cal-if.
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*
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* Return: 0 on success
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*/
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int gpexbe_clock_get_rate_asv_table(struct freq_volt *fv_array, int level_num);
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/**
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* gpexbe_clock_get_level_num() - get number of gpu clock levels
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*
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* Get number of levels in clock table from cal-if.
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* This is independent from number of levels set in mali dvfs table from
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* the device tree.
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*
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* Return: number of clock levels
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*/
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int gpexbe_clock_get_level_num(void);
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/**
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* gpexbe_clock_get_boot_freq() - get gpu boot frequency (HW)
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*
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* Return: gpu boot frequency
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*/
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int gpexbe_clock_get_boot_freq(void);
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/**
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* gpexbe_clock_get_max_freq() - get max gpu frequency (HW)
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*
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* Max GPU HW frequency. This is not affected by SW frequency max locks
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*
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* Return: max HW gpu frequency
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*/
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int gpexbe_clock_get_max_freq(void);
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/**
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* gpexbe_clock_set_rate() - set gpu clock to given value
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* @clk: target gpu clock
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*
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* Return: 0 on success
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*/
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int gpexbe_clock_set_rate(int clk);
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/**
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* gpexbe_clock_get_rate() - get current gpu clock from cal-if
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*
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* Return: current gpu clock
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*/
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int gpexbe_clock_get_rate(void);
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#endif /* _GPEXBE_CLOCK_H_ */
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