From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- tools/testing/selftests/powerpc/pmu/ebb/ebb.h | 76 +++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 tools/testing/selftests/powerpc/pmu/ebb/ebb.h (limited to 'tools/testing/selftests/powerpc/pmu/ebb/ebb.h') diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb.h b/tools/testing/selftests/powerpc/pmu/ebb/ebb.h new file mode 100644 index 000000000..2c803b5b4 --- /dev/null +++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb.h @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright 2014, Michael Ellerman, IBM Corp. + */ + +#ifndef _SELFTESTS_POWERPC_PMU_EBB_EBB_H +#define _SELFTESTS_POWERPC_PMU_EBB_EBB_H + +#include "../event.h" +#include "../lib.h" +#include "trace.h" +#include "reg.h" + +#define PMC_INDEX(pmc) ((pmc)-1) + +#define NUM_PMC_VALUES 128 + +struct ebb_state +{ + struct { + u64 pmc_count[6]; + volatile int ebb_count; + int spurious; + int negative; + int no_overflow; + } stats; + + bool pmc_enable[6]; + struct trace_buffer *trace; +}; + +extern struct ebb_state ebb_state; + +#define COUNTER_OVERFLOW 0x80000000ull + +static inline uint32_t pmc_sample_period(uint32_t value) +{ + return COUNTER_OVERFLOW - value; +} + +static inline void ebb_enable_pmc_counting(int pmc) +{ + ebb_state.pmc_enable[PMC_INDEX(pmc)] = true; +} + +bool ebb_check_count(int pmc, u64 sample_period, int fudge); +void event_leader_ebb_init(struct event *e); +void event_ebb_init(struct event *e); +void event_bhrb_init(struct event *e, unsigned ifm); +void setup_ebb_handler(void (*callee)(void)); +void standard_ebb_callee(void); +int ebb_event_enable(struct event *e); +void ebb_global_enable(void); +void ebb_global_disable(void); +bool ebb_is_supported(void); +void ebb_freeze_pmcs(void); +void ebb_unfreeze_pmcs(void); +int count_pmc(int pmc, uint32_t sample_period); +void dump_ebb_state(void); +void dump_summary_ebb_state(void); +void dump_ebb_hw_state(void); +void clear_ebb_stats(void); +void write_pmc(int pmc, u64 value); +u64 read_pmc(int pmc); +void reset_ebb_with_clear_mask(unsigned long mmcr0_clear_mask); +void reset_ebb(void); +int ebb_check_mmcr0(void); + +extern u64 sample_period; + +int core_busy_loop(void); +int ebb_child(union pipe read_pipe, union pipe write_pipe); +int catch_sigill(void (*func)(void)); +void write_pmc1(void); + +#endif /* _SELFTESTS_POWERPC_PMU_EBB_EBB_H */ -- cgit v1.2.3