69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
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/*
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* Copyright (c) 2018 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* Exynos Early Hardlockup Detector for Samsung EXYNOS SoC
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* By Hosung Kim (hosung0.kim@samsung.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef EXYNOS_EHLD__H
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#define EXYNOS_EHLD__H
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#define NUM_TRACE (32)
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#define EHLD_STAT_NORMAL (0x0)
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#define EHLD_STAT_LOCKUP_WARN (0x1)
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#define EHLD_STAT_LOCKUP_SW (0x2)
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#define EHLD_STAT_LOCKUP_HW (0x3)
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#define EHLD_OFFSET_CORE_STAT (0x460)
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struct ehld_data {
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unsigned long long time[NUM_TRACE];
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unsigned long long instret[NUM_TRACE];
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unsigned long long instrun[NUM_TRACE];
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unsigned long long pmpcsr[NUM_TRACE];
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unsigned long data_ptr;
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};
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#if IS_ENABLED(CONFIG_EXYNOS_EHLD)
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extern void ehld_do_action(int cpu, unsigned int lockup_level);
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extern void ehld_prepare_panic(void);
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extern void ehld_event_update_allcpu(void);
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extern int adv_tracer_ehld_init(void *);
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extern int adv_tracer_ehld_set_enable(int en, bool log);
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extern int adv_tracer_ehld_set_init_val(u32 interval,
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u32 count,
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u32 cpu_mask);
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extern int adv_tracer_ehld_set_interval(u32 interval);
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extern int adv_tracer_ehld_set_warn_count(u32 count);
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extern int adv_tracer_ehld_set_lockup_count(u32 count);
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extern u32 adv_tracer_ehld_get_interval(void);
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extern int adv_tracer_ehld_get_enable(void);
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extern struct ehld_data *ehld_get_ctrl_data(int cpu);
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extern int adv_tracer_ehld_send_cmd(u32, u32, u32, u32, bool);
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#else
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#define ehld_do_action(a,b) do { } while (0)
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#define ehld_prepare_panic(void) do { } while (0)
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#define ehld_event_update_allcpu(void) do { } while (0)
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inline int adv_tracer_ehld_init(void *p) { return -1; }
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inline int adv_tracer_ehld_set_enable(int en, bool log) { return -1; }
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inline int adv_tracer_ehld_set_init_val(u32 interval,
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u32 count,
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u32 cpu_mask) { return -1; }
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inline int adv_tracer_ehld_set_interval(u32 interval) { return -1; }
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inline int adv_tracer_ehld_set_warn_count(u32 count) { return -1; }
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inline int adv_tracer_ehld_set_lockup_count(u32 count) { return -1; }
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inline u32 adv_tracer_ehld_get_interval(void) { return -1; }
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inline int adv_tracer_ehld_get_enable(void) { return -1; }
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inline struct ehld_data *ehld_get_ctrl_data(int cpu) { return NULL; }
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inline int adv_tracer_ehld_send_cmd(u32, u32, u32, u32, bool) { return 0; }
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#endif
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#endif
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