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