LXR linux/arch/arm/mm/fault.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __ARCH_ARM_FAULT_H
   3#define __ARCH_ARM_FAULT_H
   4
   5/*
   6 * Fault status register encodings.  We steal bit 31 for our own purposes.
   7 */
   8#define FSR_LNX_PF              (1 << 31)
   9#define FSR_WRITE               (1 << 11)
  10#define FSR_FS4                 (1 << 10)
  11#define FSR_FS3_0               (15)
  12#define FSR_FS5_0               (0x3f)
  13
  14#ifdef CONFIG_ARM_LPAE
  15#define FSR_FS_AEA              17
  16
  17static inline int fsr_fs(unsigned int fsr)
  18{
  19        return fsr & FSR_FS5_0;
  20}
  21#else
  22#define FSR_FS_AEA              22
  23
  24static inline int fsr_fs(unsigned int fsr)
  25{
  26        return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;
  27}
  28#endif
  29
  30void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
  31void early_abt_enable(void);
  32
  33#endif  /* __ARCH_ARM_FAULT_H */
  34