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7755cec63a
Having the ARM PMUv3 driver sitting in arch/arm64/kernel is getting in the way of being able to use perf on ARMv8 cores running a 32bit kernel, such as 32bit KVM guests. This patch moves it into drivers/perf/arm_pmuv3.c, with an include file in include/linux/perf/arm_pmuv3.h. The only thing left in arch/arm64 is some mundane perf stuff. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Zaid Al-Bassam <zalbassam@google.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20230317195027.3746949-2-zalbassam@google.com Signed-off-by: Will Deacon <will@kernel.org>
27 lines
712 B
C
27 lines
712 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2012 ARM Ltd.
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*/
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#ifndef __ASM_PERF_EVENT_H
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#define __ASM_PERF_EVENT_H
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#include <asm/stack_pointer.h>
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#include <asm/ptrace.h>
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#ifdef CONFIG_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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#define perf_arch_bpf_user_pt_regs(regs) ®s->user_regs
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#endif
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#define perf_arch_fetch_caller_regs(regs, __ip) { \
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(regs)->pc = (__ip); \
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(regs)->regs[29] = (unsigned long) __builtin_frame_address(0); \
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(regs)->sp = current_stack_pointer; \
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(regs)->pstate = PSR_MODE_EL1h; \
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}
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#endif
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