arch/arm/mm/fault.h

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