arch/ppc-sam440/exec/cachepostdma.c

   1 /*
   2     Copyright � 1995-2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: CachePostDMA() - Do what is necessary for DMA.
   6     Lang: english
   7 */
   8
   9 #define DEBUG 0
  10
  11 #include <aros/debug.h>
  12 #include <exec/types.h>
  13 #include <exec/execbase.h>
  14 #include <aros/libcall.h>
  15
  16 #include <proto/exec.h>
  17
  18 /* See rom/exec/cachepostdma.c for documentation */
  19
  20 AROS_LH3(void, CachePostDMA,
  21     AROS_LHA(APTR,    address, A0),
  22     AROS_LHA(ULONG *, length,  A1),
  23     AROS_LHA(ULONG,   flags,  D0),
  24     struct ExecBase *, SysBase, 128, Exec)
  25 {
  26     AROS_LIBFUNC_INIT
  27
  28     D(bug("[exec] CachePostDMA(%08x, %d, %c)\n", address, *length, flags & DMA_ReadFromRAM ? 'R':'W'));
  29
  30     if (!(flags & DMA_ReadFromRAM))
  31         CacheClearE(address, *length, CACRF_InvalidateD | CACRF_ClearI);
  32
  33     AROS_LIBFUNC_EXIT
  34 } /* CachePostDMA */
  35