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/*
*
* (C) COPYRIGHT 2016 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 licence.
*
* A copy of the licence is included with the program, and can also be obtained
* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef _KBASE_IPA_H_
#define _KBASE_IPA_H_
struct kbase_ipa_model {
struct list_head link;
struct kbase_device *kbdev;
void *model_data;
struct kbase_ipa_model_ops *ops;
};
struct kbase_ipa_model_ops {
char *name;
/* The init and term ops on the default model are always called.
* However, all the other models are only invoked if the model
* is selected in the device tree. Otherwise they are never
* initialized. Additional resources can be acquired by models
* in init(), however they must be terminated in the term().
*/
int (*init)(struct kbase_ipa_model *model);
void (*term)(struct kbase_ipa_model *model);
/* get_dynamic_power() - return a coefficient with units pW/(Hz V^2),
* which is scaled by the IPA framework according to the current OPP's
* frequency and voltage. */
unsigned long (*get_dynamic_power)(struct kbase_ipa_model *model);
/* get_static_power() - return an estimate of the current static power
* consumption, in mW, based on the current OPP's voltage, in mV. */
unsigned long (*get_static_power)(struct kbase_ipa_model *model,
unsigned long voltage);
unsigned long (*power_to_state)(struct kbase_ipa_model *model,
unsigned long power);
};
/* Models can be registered only in the platform's platform_init_func call */
int kbase_ipa_model_ops_register(struct kbase_device *kbdev,
struct kbase_ipa_model_ops *new_model_ops);
int kbase_ipa_model_init(struct kbase_device *kbdev);
void kbase_ipa_model_term(struct kbase_device *kbdev);
void kbase_ipa_model_use_fallback_locked(struct kbase_device *kbdev);
void kbase_ipa_model_use_configured_locked(struct kbase_device *kbdev);
extern struct kbase_ipa_model_ops kbase_generic_ipa_model_ops;
/**
* kbase_ipa_dynamic_power - calculate power
* @kbdev: kbase device
* @freq: frequency in Hz
* @voltage: voltage in mV
*
* Return: returns power consumption
*/
unsigned long kbase_ipa_dynamic_power(struct kbase_device *kbdev,
unsigned long freq,
unsigned long voltage);
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 4, 0)
extern struct devfreq_cooling_ops power_model_ops;
#else
extern struct devfreq_cooling_power power_model_ops;
#endif
#endif
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