arch/arm64/include/asm/exception.h

   1 /*
   2  * Based on arch/arm/include/asm/exception.h
   3  *
   4  * Copyright (C) 2012 ARM Ltd.
   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  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18 #ifndef __ASM_EXCEPTION_H
  19 #define __ASM_EXCEPTION_H
  20
  21 #include <asm/esr.h>
  22
  23 #include <linux/interrupt.h>
  24
  25 #define __exception     __attribute__((section(".exception.text")))
  26 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
  27 #define __exception_irq_entry   __irq_entry
  28 #else
  29 #define __exception_irq_entry   __exception
  30 #endif
  31
  32 static inline u32 disr_to_esr(u64 disr)
  33 {
  34         unsigned int esr = ESR_ELx_EC_SERROR << ESR_ELx_EC_SHIFT;
  35
  36         if ((disr & DISR_EL1_IDS) == 0)
  37                 esr |= (disr & DISR_EL1_ESR_MASK);
  38         else
  39                 esr |= (disr & ESR_ELx_ISS_MASK);
  40
  41         return esr;
  42 }
  43
  44 #endif  /* __ASM_EXCEPTION_H */