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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
*
* (C) COPYRIGHT 2014-2023 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU license.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can access it online at
* http://www.gnu.org/licenses/gpl-2.0.html.
*
*/
#ifndef _BASE_DEVFREQ_H_
#define _BASE_DEVFREQ_H_
/**
* kbase_devfreq_init - Initialize kbase device for DevFreq.
* @kbdev: Device pointer
*
* This function must be called only when a kbase device is initialized.
*
* Return: 0 on success.
*/
int kbase_devfreq_init(struct kbase_device *kbdev);
void kbase_devfreq_term(struct kbase_device *kbdev);
/**
* kbase_devfreq_force_freq - Set GPU frequency on L2 power on/off.
* @kbdev: Device pointer
* @freq: GPU frequency in HZ to be set when
* MALI_HW_ERRATA_1485982_USE_CLOCK_ALTERNATIVE is enabled
*/
void kbase_devfreq_force_freq(struct kbase_device *kbdev, unsigned long freq);
/**
* kbase_devfreq_enqueue_work - Enqueue a work item for suspend/resume devfreq.
* @kbdev: Device pointer
* @work_type: The type of the devfreq work item, i.e. suspend or resume
*/
void kbase_devfreq_enqueue_work(struct kbase_device *kbdev, enum kbase_devfreq_work_type work_type);
/**
* kbase_devfreq_opp_translate - Translate nominal OPP frequency from devicetree
* into real frequency & voltage pair, along with
* core mask
* @kbdev: Device pointer
* @freq: Nominal frequency
* @core_mask: Pointer to u64 to store core mask to
* @freqs: Pointer to array of frequencies
* @volts: Pointer to array of voltages
*
* This function will only perform translation if an operating-points-v2-mali
* table is present in devicetree. If one is not present then it will return an
* untranslated frequency (and corresponding voltage) and all cores enabled.
* The voltages returned are in micro Volts (uV).
*/
void kbase_devfreq_opp_translate(struct kbase_device *kbdev, unsigned long freq, u64 *core_mask,
unsigned long *freqs, unsigned long *volts);
#endif /* _BASE_DEVFREQ_H_ */
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