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u-boot/arch/x86/include/asm/acpigen.h
Simon Glass 7764a8481c x86: acpi: Add PCT and PTC tables
These are needed for the CPU tables. Add them into an x86-specific file
since we do not support them on sandbox, or include tests.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-09-25 11:27:18 +08:00

35 lines
796 B
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Generation of x86-specific ACPI tables
*
* Copyright 2020 Google LLC
*/
#ifndef __ASM_ACPIGEN_H__
#define __ASM_ACPIGEN_H__
struct acpi_ctx;
/**
* acpigen_write_empty_pct() - Write an empty PCT
*
* See ACPI v6.3 section 8.4.6.1: _PCT (Performance Control)
*
* This writes an empty table so that CPU performance works as expected
*
* @ctx: ACPI context pointer
*/
void acpigen_write_empty_pct(struct acpi_ctx *ctx);
/**
* acpigen_write_empty_ptc() - Write an empty PTC
*
* See ACPI v6.3 section 8.4.5.1: _PTC (Processor Throttling Control)
*
* This writes an empty table so that CPU performance works as expected
*
* @ctx: ACPI context pointer
*/
void acpigen_write_empty_ptc(struct acpi_ctx *ctx);
#endif /* __ASM_ACPI_H__ */