| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (c) 2016 Google, Inc |
| */ |
| |
| #ifndef __ASM_CPU_COMMON_H |
| #define __ASM_CPU_COMMON_H |
| |
| #define IA32_PERF_CTL 0x199 |
| |
| /** |
| * cpu_common_init() - Set up common CPU init |
| * |
| * This reports BIST failure, enables the LAPIC, updates microcode, enables |
| * the upper 128-bytes of CROM RAM, probes the northbridge, PCH, LPC and SATA. |
| * |
| * @return 0 if OK, -ve on error |
| */ |
| int cpu_common_init(void); |
| |
| /** |
| * cpu_set_flex_ratio_to_tdp_nominal() - Set up the maximum non-turbo rate |
| * |
| * If a change is needed, this function will do a soft reset so it takes |
| * effect. |
| * |
| * Some details are available here: |
| * http://forum.hwbot.org/showthread.php?t=76092 |
| * |
| * @return 0 if OK, -ve on error |
| */ |
| int cpu_set_flex_ratio_to_tdp_nominal(void); |
| |
| #endif |
