arch/.unmaintained/m68k-linux/exec/cache.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Flush Caches
   6     Lang: english
   7 */
   8 #include <errno.h>
   9 #include <asm/cachectl.h>
  10 /* GNU libc 2 has this included in <sys/syscall.h>, but libc5 doesn't :-( */
  11 #include <asm/unistd.h>
  12 static inline _syscall4(int,cacheflush,unsigned long,addr,int,scope,int,cache,unsigned long,len)
  13
  14 /******************************************************************************
  15
  16     NAME */
  17 #include <proto/exec.h>
  18 #include <exec/execbase.h>
  19
  20         AROS_LH3(void, CacheClearE,
  21
  22 /*  SYNOPSIS */
  23         AROS_LHA(APTR,  address, A0),
  24         AROS_LHA(ULONG, length,  D0),
  25         AROS_LHA(ULONG, caches,  D1),
  26
  27 /*  LOCATION */
  28         struct ExecBase *, SysBase, 107, Exec)
  29
  30 /*  FUNCTION
  31
  32     INPUTS
  33
  34     RESULT
  35
  36     NOTES
  37
  38     EXAMPLE
  39
  40     BUGS
  41
  42     SEE ALSO
  43
  44     INTERNALS
  45
  46     HISTORY
  47
  48 ******************************************************************************/
  49 {
  50     int scope, cpucache = 0;
  51
  52     if (caches & CACRF_ClearD)
  53         cpucache |= FLUSH_CACHE_DATA;
  54
  55     if (caches & CACRF_ClearI)
  56         cpucache |= FLUSH_CACHE_INSN;
  57
  58     if (length == (ULONG)-1)
  59         scope = FLUSH_SCOPE_ALL;
  60     else
  61         scope = FLUSH_SCOPE_LINE;
  62
  63     (void) cacheflush((unsigned long)address, scope, cpucache, length);
  64 } /* CacheClearE */
  65
  66 /******************************************************************************
  67
  68     NAME */
  69 #include <proto/exec.h>
  70
  71         AROS_LH0(void, CacheClearU,
  72
  73 /*  LOCATION */
  74         struct ExecBase *, SysBase, 106, Exec)
  75
  76 /*  FUNCTION
  77
  78     INPUTS
  79
  80     RESULT
  81
  82     NOTES
  83
  84     EXAMPLE
  85
  86     BUGS
  87
  88     SEE ALSO
  89
  90     INTERNALS
  91
  92     HISTORY
  93
  94 ******************************************************************************/
  95 {
  96     (void) cacheflush(0, FLUSH_SCOPE_ALL, FLUSH_CACHE_BOTH, 0);
  97 } /* CacheClearU */