newlib/libgloss/spu/syscalls.c
Jeff Johnston a0050b64fc 2007-05-23 Patrick Mansfield <patmans@us.ibm.com>
* spu/syscalls.c: Change __send_to_ppe to return the result stored
        in stored in slot 0 of the data, rather than have each assisted
        call retrieve the value.
        * spu/jsre.h: Remove the now unused syscall_out_t.
        * spu/access.c: Use the __send_to_ppe result instead of the slot 0
        value, remove unused syscall_out_t variable.
        * spu/close.c: Ditto.
        * spu/dup.c: Ditto.
        * spu/fstat.c: Ditto.
        * spu/ftruncate.c: Ditto.
        * spu/gettimeofday.c: Ditto.
        * spu/lseek.c: Ditto.
        * spu/open.c: Ditto.
        * spu/read.c: Ditto.
        * spu/stat.c: Ditto.
        * spu/unlink.c: Ditto.
        * spu/write.c: Ditto.
2007-05-23 21:39:54 +00:00

59 lines
2.2 KiB
C

/*
(C) Copyright IBM Corp. 2005, 2006
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of IBM nor the names of its contributors may be
used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
Author: Andreas Neukoetter (ti95neuk@de.ibm.com)
*/
#include <errno.h>
#include "jsre.h"
int
__send_to_ppe (unsigned int signalcode, unsigned int opcode, void *data)
{
unsigned int combined = ( ( opcode<<24 )&0xff000000 ) | ( ( unsigned int )data & 0x00ffffff );
__vector unsigned int stopfunc = {
signalcode, /* stop */
(unsigned int) combined,
0x4020007f, /* nop */
0x35000000 /* bi $0 */
};
void (*f) (void) = (void *) &stopfunc;
asm ("sync");
f ();
errno = ((unsigned int *) data)[3];
/*
* Return the rc code stored in slot 0.
*/
return ((unsigned int *) data)[0];
}