rdp_output_len.c 1.75 KB

/**************************************************************************
 *                                                                        *
 *               Copyright (C) 1995, Silicon Graphics, Inc.               *
 *                                                                        *
 *  These coded instructions, statements, and computer programs  contain  *
 *  unpublished  proprietary  information of Silicon Graphics, Inc., and  *
 *  are protected by Federal copyright  law.  They  may not be disclosed  *
 *  to  third  parties  or copied or duplicated in any form, in whole or  *
 *  in part, without the prior written consent of Silicon Graphics, Inc.  *
 *                                                                        *
 *************************************************************************/

/*---------------------------------------------------------------------*
        Copyright (C) 1997 Nintendo. (Originated by SGI)
        
        $RCSfile: rdp_output_len.c,v $
        $Revision: 1.1.1.1 $
        $Date: 2002/05/02 03:27:33 $
 *---------------------------------------------------------------------*/

/*
 * The "output_buff_size" field of the RCP task structure is set to this
 * address. It is placed in its own .c, and thus its own .o, since the
 * linker aligns individual relocatables to data cache line size (16 byte)
 * boundaries.
 *
 * This avoids the problem where the output buffer length data is accidentally
 * scribbled over during a writeback for data sharing the same line.
 */

#include <ultra64.h>
#include "onetri.h"

#if __GNUC__ /* { */
u64 rdp_output_len __attribute__((aligned (16)));		/* RSP writes back size of RDP data */
#else /* }{ */
u64 rdp_output_len;			/* RSP writes back size of RDP data */
#endif /* } */