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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
*/
#ifndef __ASM_INTEL_ACPI_H__
#define __ASM_INTEL_ACPI_H__
struct acpi_cstate;
struct acpi_ctx;
struct acpi_tstate;
struct udevice;
/**
* acpi_generate_cpu_header() - Start generating an ACPI CPU entry
*
* Generates the ACPI information for a CPU. After this, the caller should
* generate_p_state_entries(), generate_t_state_entries and then
* acpigen_pop_len() to close off this package.
*
* @ctx: ACPI context pointer
* @core_id: CPU core number, as numbered by the SoC
* @c_state_map: Information about each C state
* @num_cstates: Number of entries in @c_state_map
* Return: 0 if OK, -ve on error
*/
int acpi_generate_cpu_header(struct acpi_ctx *ctx, int core_id,
const struct acpi_cstate *c_state_map,
int num_cstates);
/**
* acpi_generate_cpu_package_final() - Write out the CPU PPKG entry
*
* This writes information about the CPUs in the package
*
* @ctx: ACPI context pointer
* @cores_per_package: Number of CPU cores in each package in the SoC
*/
int acpi_generate_cpu_package_final(struct acpi_ctx *ctx,
int cores_per_package);
void generate_p_state_entries(struct acpi_ctx *ctx, int core,
int cores_per_package);
void generate_t_state_entries(struct acpi_ctx *ctx, int core,
int cores_per_package, struct acpi_tstate *entry,
int nentries);
int southbridge_inject_dsdt(const struct udevice *dev, struct acpi_ctx *ctx);
int intel_southbridge_write_acpi_tables(const struct udevice *dev,
struct acpi_ctx *ctx);
#endif /* __ASM_INTEL_ACPI_H__ */
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