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c7cc504bc3
Commit e50c541 (ARM: perf: add guest vs host discrimination) broken the
link as perf_instruction_pointer and perf_misc_flags are not defined
when CONFIG_HW_PERF_EVENTS is not selected.
As it make little sense to try and profile a guest without any HW event,
just fallback to the original code when this config option is not selected.
Reported-by: Russell King <linux@arm.linux.org.uk>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
32 lines
840 B
C
32 lines
840 B
C
/*
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* linux/arch/arm/include/asm/perf_event.h
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*
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* Copyright (C) 2009 picoChip Designs Ltd, Jamie Iles
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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 version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#ifndef __ARM_PERF_EVENT_H__
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#define __ARM_PERF_EVENT_H__
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/*
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* The ARMv7 CPU PMU supports up to 32 event counters.
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*/
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#define ARMPMU_MAX_HWEVENTS 32
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#define HW_OP_UNSUPPORTED 0xFFFF
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#define C(_x) PERF_COUNT_HW_CACHE_##_x
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#define CACHE_OP_UNSUPPORTED 0xFFFF
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#ifdef CONFIG_HW_PERF_EVENTS
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struct pt_regs;
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extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
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extern unsigned long perf_misc_flags(struct pt_regs *regs);
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#define perf_misc_flags(regs) perf_misc_flags(regs)
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#endif
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#endif /* __ARM_PERF_EVENT_H__ */
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