1 /* 2 * linux/arch/arm/include/asm/perf_event.h 3 * 4 * Copyright (C) 2009 picoChip Designs Ltd, Jamie Iles 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 * 10 */ 11 12 #ifndef __ARM_PERF_EVENT_H__ 13 #define __ARM_PERF_EVENT_H__ 14 15 /* 16 * The ARMv7 CPU PMU supports up to 32 event counters. 17 */ 18 #define ARMPMU_MAX_HWEVENTS 32 19 20 #define HW_OP_UNSUPPORTED 0xFFFF 21 #define C(_x) PERF_COUNT_HW_CACHE_##_x 22 #define CACHE_OP_UNSUPPORTED 0xFFFF 23 24 #ifdef CONFIG_HW_PERF_EVENTS 25 struct pt_regs; 26 extern unsigned long perf_instruction_pointer(struct pt_regs *regs); 27 extern unsigned long perf_misc_flags(struct pt_regs *regs); 28 #define perf_misc_flags(regs) perf_misc_flags(regs) 29 #endif 30 31 #define perf_arch_fetch_caller_regs(regs, __ip) { \ 32 (regs)->ARM_pc = (__ip); \ 33 (regs)->ARM_fp = (unsigned long) __builtin_frame_address(0); \ 34 (regs)->ARM_sp = current_stack_pointer; \ 35 (regs)->ARM_cpsr = SVC_MODE; \ 36 } 37 38 #endif /* __ARM_PERF_EVENT_H__ */ 39