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kernel/linux-rt-4.4.41/arch/c6x/include/asm/traps.h 1.29 KB
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  /*
   *  Port on Texas Instruments TMS320C6x architecture
   *
   *  Copyright (C) 2004, 2009, 2011 Texas Instruments Incorporated
   *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
   *
   *  This program is free software; you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License version 2 as
   *  published by the Free Software Foundation.
   */
  #ifndef _ASM_C6X_TRAPS_H
  #define _ASM_C6X_TRAPS_H
  
  #define EXCEPT_TYPE_NXF   31	   /* NMI */
  #define EXCEPT_TYPE_EXC   30	   /* external exception */
  #define EXCEPT_TYPE_IXF   1	   /* internal exception */
  #define EXCEPT_TYPE_SXF   0	   /* software exception */
  
  #define EXCEPT_CAUSE_LBX  (1 << 7) /* loop buffer exception */
  #define EXCEPT_CAUSE_PRX  (1 << 6) /* privilege exception */
  #define EXCEPT_CAUSE_RAX  (1 << 5) /* resource access exception */
  #define EXCEPT_CAUSE_RCX  (1 << 4) /* resource conflict exception */
  #define EXCEPT_CAUSE_OPX  (1 << 3) /* opcode exception */
  #define EXCEPT_CAUSE_EPX  (1 << 2) /* execute packet exception */
  #define EXCEPT_CAUSE_FPX  (1 << 1) /* fetch packet exception */
  #define EXCEPT_CAUSE_IFX  (1 << 0) /* instruction fetch exception */
  
  struct exception_info {
  	char *kernel_str;
  	int  signo;
  	int  code;
  };
  
  extern int (*c6x_nmi_handler)(struct pt_regs *regs);
  
  #endif /* _ASM_C6X_TRAPS_H */