| [444] | 1 | /* |
|---|
| 2 | (C) Copyright IBM Corp. 2005, 2006 |
|---|
| 3 | |
|---|
| 4 | All rights reserved. |
|---|
| 5 | |
|---|
| 6 | Redistribution and use in source and binary forms, with or without |
|---|
| 7 | modification, are permitted provided that the following conditions are met: |
|---|
| 8 | |
|---|
| 9 | * Redistributions of source code must retain the above copyright notice, |
|---|
| 10 | this list of conditions and the following disclaimer. |
|---|
| 11 | * Redistributions in binary form must reproduce the above copyright |
|---|
| 12 | notice, this list of conditions and the following disclaimer in the |
|---|
| 13 | documentation and/or other materials provided with the distribution. |
|---|
| 14 | * Neither the name of IBM nor the names of its contributors may be |
|---|
| 15 | used to endorse or promote products derived from this software without |
|---|
| 16 | specific prior written permission. |
|---|
| 17 | |
|---|
| 18 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
|---|
| 19 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
|---|
| 20 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
|---|
| 21 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
|---|
| 22 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
|---|
| 23 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
|---|
| 24 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
|---|
| 25 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
|---|
| 26 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
|---|
| 27 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
|---|
| 28 | POSSIBILITY OF SUCH DAMAGE. |
|---|
| 29 | |
|---|
| 30 | Author: Andreas Neukoetter (ti95neuk@de.ibm.com) |
|---|
| 31 | */ |
|---|
| 32 | #include <spu_intrinsics.h> |
|---|
| 33 | #include <errno.h> |
|---|
| 34 | #include "jsre.h" |
|---|
| 35 | |
|---|
| 36 | int |
|---|
| 37 | __send_to_ppe (unsigned int signalcode, unsigned int opcode, void *data) |
|---|
| 38 | { |
|---|
| 39 | |
|---|
| 40 | int newerrno; |
|---|
| 41 | unsigned int combined = ( ( opcode<<24 )&0xff000000 ) | ( ( unsigned int )data & 0x00ffffff ); |
|---|
| 42 | |
|---|
| 43 | __vector unsigned int stopfunc = { |
|---|
| 44 | signalcode, /* stop */ |
|---|
| 45 | (unsigned int) combined, |
|---|
| 46 | 0x4020007f, /* nop */ |
|---|
| 47 | 0x35000000 /* bi $0 */ |
|---|
| 48 | }; |
|---|
| 49 | |
|---|
| 50 | void (*f) (void) = (void *) &stopfunc; |
|---|
| 51 | asm ("sync"); |
|---|
| 52 | f (); |
|---|
| 53 | newerrno = ((unsigned int *) data)[3]; |
|---|
| 54 | /* |
|---|
| 55 | * Note: branchless code to conditionally set errno using |
|---|
| 56 | * spu_cmpeq and spu_sel used more space than the following. |
|---|
| 57 | */ |
|---|
| 58 | if (newerrno) |
|---|
| 59 | errno = newerrno; |
|---|
| 60 | |
|---|
| 61 | /* |
|---|
| 62 | * Return the rc code stored in slot 0. |
|---|
| 63 | */ |
|---|
| 64 | return ((unsigned int *) data)[0]; |
|---|
| 65 | } |
|---|
| 66 | |
|---|
