arch/arm64/include/asm/perf_event.h

   1 /*
   2  * Copyright (C) 2012 ARM Ltd.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  */
  16
  17 #ifndef __ASM_PERF_EVENT_H
  18 #define __ASM_PERF_EVENT_H
  19
  20 #include <asm/stack_pointer.h>
  21
  22 #ifdef CONFIG_PERF_EVENTS
  23 struct pt_regs;
  24 extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
  25 extern unsigned long perf_misc_flags(struct pt_regs *regs);
  26 #define perf_misc_flags(regs)   perf_misc_flags(regs)
  27 #endif
  28
  29 #define perf_arch_fetch_caller_regs(regs, __ip) { \
  30         (regs)->pc = (__ip);    \
  31         (regs)->regs[29] = (unsigned long) __builtin_frame_address(0); \
  32         (regs)->sp = current_stack_pointer; \
  33         (regs)->pstate = PSR_MODE_EL1h; \
  34 }
  35
  36 #endif