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4078b7760e
The old barrier implementation was very slow when running on a multi-socket machine (pcmemtest issue 16). The new implementation provides two options: - when blocked, spin on a thread-local flag - when blocked, execute a HLT instruction and wait for a NMI The first option might be faster, but we need to measure it to find out. A new boot command line option is provided to select between the two, with a third setting that uses a mixture of the two.
62 lines
1000 B
C
62 lines
1000 B
C
// SPDX-License-Identifier: GPL-2.0
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#ifndef CONFIG_H
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#define CONFIG_H
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/**
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* \file
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*
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* Provides the configuration settings and pop-up menu.
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*
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*//*
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* Copyright (C) 2020-2022 Martin Whitaker.
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include "smp.h"
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typedef enum {
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PAR,
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SEQ,
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ONE
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} cpu_mode_t;
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typedef enum {
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ERROR_MODE_NONE,
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ERROR_MODE_SUMMARY,
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ERROR_MODE_ADDRESS,
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ERROR_MODE_BADRAM
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} error_mode_t;
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typedef enum {
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POWER_SAVE_OFF,
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POWER_SAVE_LOW,
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POWER_SAVE_HIGH
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} power_save_t;
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extern uintptr_t pm_limit_lower;
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extern uintptr_t pm_limit_upper;
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extern uintptr_t num_pages_to_test;
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extern cpu_mode_t cpu_mode;
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extern error_mode_t error_mode;
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extern cpu_state_t cpu_state[MAX_CPUS];
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extern bool enable_temperature;
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extern bool enable_trace;
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extern bool pause_at_start;
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extern power_save_t power_save;
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void config_init(void);
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void config_menu(bool initial);
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void initial_config(void);
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#endif // CONFIG_H
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