79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright 2014, Michael Ellerman, IBM Corp.
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*/
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#ifndef _SELFTESTS_POWERPC_PMU_EBB_EBB_H
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#define _SELFTESTS_POWERPC_PMU_EBB_EBB_H
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#include "../event.h"
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#include "../lib.h"
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#include "trace.h"
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#include "reg.h"
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#define PMC_INDEX(pmc) ((pmc)-1)
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#define NUM_PMC_VALUES 128
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struct ebb_state
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{
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struct {
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u64 pmc_count[6];
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volatile int ebb_count;
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int spurious;
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int negative;
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int no_overflow;
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} stats;
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bool pmc_enable[6];
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struct trace_buffer *trace;
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};
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extern struct ebb_state ebb_state;
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#define COUNTER_OVERFLOW 0x80000000ull
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static inline uint32_t pmc_sample_period(uint32_t value)
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{
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return COUNTER_OVERFLOW - value;
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}
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static inline void ebb_enable_pmc_counting(int pmc)
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{
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ebb_state.pmc_enable[PMC_INDEX(pmc)] = true;
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}
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bool ebb_check_count(int pmc, u64 sample_period, int fudge);
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void event_leader_ebb_init(struct event *e);
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void event_ebb_init(struct event *e);
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void event_bhrb_init(struct event *e, unsigned ifm);
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void setup_ebb_handler(void (*callee)(void));
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void standard_ebb_callee(void);
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int ebb_event_enable(struct event *e);
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void ebb_global_enable(void);
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void ebb_global_disable(void);
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bool ebb_is_supported(void);
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void ebb_freeze_pmcs(void);
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void ebb_unfreeze_pmcs(void);
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void event_ebb_init(struct event *e);
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void event_leader_ebb_init(struct event *e);
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int count_pmc(int pmc, uint32_t sample_period);
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void dump_ebb_state(void);
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void dump_summary_ebb_state(void);
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void dump_ebb_hw_state(void);
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void clear_ebb_stats(void);
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void write_pmc(int pmc, u64 value);
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u64 read_pmc(int pmc);
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void reset_ebb_with_clear_mask(unsigned long mmcr0_clear_mask);
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void reset_ebb(void);
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int ebb_check_mmcr0(void);
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extern u64 sample_period;
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int core_busy_loop(void);
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int ebb_child(union pipe read_pipe, union pipe write_pipe);
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int catch_sigill(void (*func)(void));
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void write_pmc1(void);
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#endif /* _SELFTESTS_POWERPC_PMU_EBB_EBB_H */
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