/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2020 Linaro Ltd * * Author: Daniel Lezcano <daniel.lezcano@linaro.org> */ #ifndef ___DTPM_H__ #define ___DTPM_H__ #include <linux/powercap.h> #define MAX_DTPM_DESCR 8 #define MAX_DTPM_CONSTRAINTS 1 struct dtpm { struct powercap_zone zone; struct dtpm *parent; struct list_head sibling; struct list_head children; struct dtpm_ops *ops; unsigned long flags; u64 power_limit; u64 power_max; u64 power_min; int weight; void *private; }; struct dtpm_ops { u64 (*set_power_uw)(struct dtpm *, u64); u64 (*get_power_uw)(struct dtpm *); void (*release)(struct dtpm *); }; struct dtpm_descr; typedef int (*dtpm_init_t)(struct dtpm_descr *); struct dtpm_descr { struct dtpm *parent; const char *name; dtpm_init_t init; }; /* Init section thermal table */ extern struct dtpm_descr *__dtpm_table[]; extern struct dtpm_descr *__dtpm_table_end[]; #define DTPM_TABLE_ENTRY(name) \ static typeof(name) *__dtpm_table_entry_##name \ __used __section("__dtpm_table") = &name #define DTPM_DECLARE(name) DTPM_TABLE_ENTRY(name) #define for_each_dtpm_table(__dtpm) \ for (__dtpm = __dtpm_table; \ __dtpm < __dtpm_table_end; \ __dtpm++) static inline struct dtpm *to_dtpm(struct powercap_zone *zone) { return container_of(zone, struct dtpm, zone); } int dtpm_update_power(struct dtpm *dtpm, u64 power_min, u64 power_max); int dtpm_release_zone(struct powercap_zone *pcz); struct dtpm *dtpm_alloc(struct dtpm_ops *ops); void dtpm_unregister(struct dtpm *dtpm); int dtpm_register(const char *name, struct dtpm *dtpm, struct dtpm *parent); int dtpm_register_cpu(struct dtpm *parent); #endif