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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the 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.
*/
#ifndef _INTEL_COMMON_ACPI_H_
#define _INTEL_COMMON_ACPI_H_
#include <stdint.h>
/*
* SOC specific handler to provide the wake source data for ACPI _SWS.
*
* @pm1: PM1_STS register with only enabled events set
* @gpe0: GPE0_STS registers with only enabled events set
*
* return the number of registers in the gpe0 array or -1 if nothing
* is provided by this function.
*/
int soc_fill_acpi_wake(uint32_t *pm1, uint32_t **gpe0);
#if IS_ENABLED(CONFIG_SOC_INTEL_COMMON_ACPI)
/*
* cpu_get_bus_clock returns the bus clock frequency in KHz.
* This is the value the clock ratio is multiplied with.
*/
uint32_t cpu_get_bus_clock(void);
/*
* cpu_get_coord_type returns coordination type (SW_ANY or SW_ALL or HW_ALL)
* which is used to populate _PSD object.
*/
int cpu_get_coord_type(void);
/*
* cpu_config_tdp_levels returns the number of TDP levels supported
* by this processor
*/
int cpu_config_tdp_levels(void);
/*
* cpu_get_min_ratio returns the minimum frequency ratio that is supported
* by this processor
*/
uint32_t cpu_get_min_ratio(void);
/*
* cpu_get_max_ratio returns the nominal TDP ratio if available or the
* maximum non turbo frequency ratio for this processor
*/
uint32_t cpu_get_max_ratio(void);
/*
* cpu_get_power_max calculates CPU TDP in mW
*/
uint32_t cpu_get_power_max(void);
/*
* cpu_get_max_turbo_ratio returns the maximum turbo ratio limit for the
* processor
*/
uint32_t cpu_get_max_turbo_ratio(void);
/*
* get_cstate_map returns a table of processor specific acpi_cstate_t entries
* and number of entries in the table
*/
acpi_cstate_t *soc_get_cstate_map(int *num_entries);
/*
* get_soc_tss_table returns a table of processor specific acpi_tstate_t entries
* and number of entries in the table
*/
acpi_tstate_t *soc_get_tss_table(int *num_entries);
/*
* soc_get_acpi_base_address returns the ACPI base address for the SOC
*/
uint16_t soc_get_acpi_base_address(void);
#endif /* CONFIG_SOC_INTEL_COMMON_ACPI */
#endif
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