gonzui

    1: /*
    2:  *----------------------------------------------------------------------
    3:  *    T-Kernel 2.0 Software Package
    4:  *
    5:  *    Copyright 2011 by Ken Sakamura.
    6:  *    This software is distributed under the latest version of T-License 2.x.
    7:  *----------------------------------------------------------------------
    8:  *
    9:  *    Released by T-Engine Forum(http://www.t-engine.org/) at 2011/05/17.
   10:  *    Modified by TRON Forum(http://www.tron.org/) at 2015/06/01.
   11:  *
   12:  *----------------------------------------------------------------------
   13:  */
   14: 
   15: /*
   16:  *      cpu_insn.h (EM1-D512)
   17:  *      EM1-D512 Dependent Operation
   18:  */
   19: 
   20: #ifndef _CPU_INSN_
   21: #define _CPU_INSN_
   22: 
   23: #include <sys/sysinfo.h>
   24: 
   25: /* ------------------------------------------------------------------------ */
   26: /*
   27:  *      Control register operation
   28:  */
   29: 
   30: /*
   31:  * Get CPSR
   32:  */
   33: Inline UINT getCPSR( void )
   34: {
   35:         UINT   cpsr;
   36:         Asm("mrs %0, cpsr": "=r"(cpsr));
   37:         return cpsr;
   38: }
   39: 
   40: /*
   41:  * TLB disable
   42:  */
   43: Inline void PurgeTLB( void )
   44: {
   45:         Asm("mcr p15, 0, %0, cr8, c7, 0":: "r"(0));
   46:         DSB(); ISB();
   47: }
   48: 
   49: /* ------------------------------------------------------------------------ */
   50: /*
   51:  *      EIT-related
   52:  */
   53: 
   54: /*
   55:  * Vector numbers used by the T-Monitor
   56:  */
   57: #define VECNO_DEFAULT   EIT_DEFAULT       /* default handler */
   58: #define VECNO_IDEBUG    EIT_IDEBUG /* debug abort instruction */
   59: #define VECNO_DDEBUG    EIT_DDEBUG /* debug abort data */
   60: #define VECNO_MONITOR   SWI_MONITOR       /* monitor service call */
   61: #define VECNO_ABORTSW   EIT_GPIO(8)       /* abort switch */
   62: 
   63: #define VECNO_GIO0      EIT_IRQ(50)  /* Generic handler for GPIO interrupt */
   64: #define VECNO_GIO1      EIT_IRQ(51)
   65: #define VECNO_GIO2      EIT_IRQ(52)
   66: #define VECNO_GIO3      EIT_IRQ(53)
   67: #define VECNO_GIO4      EIT_IRQ(79)
   68: #define VECNO_GIO5      EIT_IRQ(80)
   69: #define VECNO_GIO6      EIT_IRQ(26)
   70: #define VECNO_GIO7      EIT_IRQ(27)
   71: 
   72: /*
   73:  * To save monitor exception handler
   74:  */
   75: typedef struct monhdr {
   76:         FP     default_hdr;                /* default handler */
   77:         FP     idebug_hdr;         /* debug abort instruction */
   78:         FP     ddebug_hdr;         /* debug abort data */
   79:         FP     monitor_hdr;                /* monitor service call */
   80:         FP     abortsw_hdr;                /* abort swiitch  */
   81:         FP     gio_hdr[8];         /* Generic handler for GPIO interrupt */
   82: } MONHDR;
   83: 
   84: /* For saving monitor exception handler */
   85: IMPORT MONHDR   SaveMonHdr;
   86: 
   87: /*
   88:  * Set interrupt handler
   89:  */
   90: Inline void define_inthdr( INT vecno, FP inthdr )
   91: {
   92:         SCArea->intvec[vecno] = inthdr;
   93: }
   94: 
   95: /*
   96:  * If it is the task-independent part, TRUE
   97:  */
   98: Inline BOOL isTaskIndependent( void )
   99: {
  100:         return ( SCInfo.taskindp > 0 )? TRUE: FALSE;
  101: }
  102: 
  103: /*
  104:  * Move to/Restore task independent part
  105:  */
  106: Inline void EnterTaskIndependent( void )
  107: {
  108:         SCInfo.taskindp++;
  109: }
  110: Inline void LeaveTaskIndependent( void )
  111: {
  112:         SCInfo.taskindp--;
  113: }
  114: 
  115: /* ------------------------------------------------------------------------ */
  116: 
  117: #endif /* _CPU_INSN_ */