diff options
Diffstat (limited to 'roms/u-boot/arch/x86/include/asm/acpigen.h')
| -rw-r--r-- | roms/u-boot/arch/x86/include/asm/acpigen.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/roms/u-boot/arch/x86/include/asm/acpigen.h b/roms/u-boot/arch/x86/include/asm/acpigen.h new file mode 100644 index 000000000..c531dd61d --- /dev/null +++ b/roms/u-boot/arch/x86/include/asm/acpigen.h @@ -0,0 +1,35 @@ +/* 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__ */ |