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 static inline int fsr_fs(unsigned int fsr)
  15 {
  16         return fsr & FSR_FS5_0;
  17 }
  18 #else
  19 static inline int fsr_fs(unsigned int fsr)
  20 {
  21         return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;
  22 }
  23 #endif
  24
  25 void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
  26 unsigned long search_exception_table(unsigned long addr);
  27 void early_abt_enable(void);
  28
  29 #endif  /* __ARCH_ARM_FAULT_H */