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:  *      sysext.h
   17:  *
   18:  *      Definitions related to Extension
   19:  */
   20: 
   21: #ifndef __TK_SYSEXT_H__
   22: #define __TK_SYSEXT_H__
   23: 
   24: #include <basic.h>
   25: #include "typedef.h"
   26: 
   27: #include <sys/sysdepend/segment_common.h>
   28: 
   29: #ifdef __cplusplus
   30: extern "C" {
   31: #endif
   32: 
   33: /*
   34:  * Memory Cache Control
   35:  */
   36: IMPORT ER  FlushMemCache( void *laddr, INT len, UINT mode );
   37: IMPORT INT SetCacheMode( void *addr, INT len, UINT mode );
   38: IMPORT INT ControlCache( void *addr, INT len, UINT mode );
   39: 
   40: /*
   41:  * mode of FlushMemCache()
   42:  */
   43: #define TCM_ICACHE      0x0001       /* Invalidate instruction cache */
   44: #define TCM_DCACHE      0x0002       /* Flush data cache and then invalidate it */
   45: 
   46: /*
   47:  * mode of SetCacheMode()
   48:  */
   49: #define CM_OFF          0x01    /* cache off */
   50: #define CM_WB           0x02     /* cache on: writeback */
   51: #define CM_WT           0x03     /* cache on: writethrough */
   52: #define CM_CONT         0x10   /* Set up cache only for consecutive physical address range */
   53:  
   54: /*
   55:  * mode of ControlCache()
   56:  */
   57: #define CC_FLUSH        0x01   /* flush cache */
   58: #define CC_INVALIDATE   0x02      /* invaliate cache */
   59:  
   60: /*
   61:  * Memory Map Function
   62:  */
   63: IMPORT ER MapMemory( CONST void *paddr, INT len, UINT attr, void **laddr );
   64: IMPORT ER UnmapMemory( CONST void *laddr );
   65: 
   66: /*
   67:  * Obtain the information about the address space
   68:  */
   69: typedef struct {
   70:         void   *paddr;   /* physical address that is mapped to addr */
   71:         void   *page;    /* the physical start address of the page in which addr resides */
   72:         INT    pagesz;    /* page size (in bytes)) */
   73:         INT    cachesz; /* cache line size (in bytes) */
   74:         INT    cont;      /* the size of the area covered by the consecutive physical addresses (in bytes) */
   75: } T_SPINFO;
   76: IMPORT ER GetSpaceInfo( CONST void *addr, INT len, T_SPINFO *pk_spinfo );
   77: 
   78: /*
   79:  * Operation on memory access right
   80:  */
   81: IMPORT INT SetMemoryAccess( CONST void *addr, INT len, UINT mode );
   82: 
   83: #ifdef __cplusplus
   84: }
   85: #endif
   86: #endif /* __TK_SYSEXT_H__ */