diff options
Diffstat (limited to 'gcell/ibm/sync/ppu_source/cond_wait.h')
| -rw-r--r-- | gcell/ibm/sync/ppu_source/cond_wait.h | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/gcell/ibm/sync/ppu_source/cond_wait.h b/gcell/ibm/sync/ppu_source/cond_wait.h deleted file mode 100644 index ed5fbecb1..000000000 --- a/gcell/ibm/sync/ppu_source/cond_wait.h +++ /dev/null @@ -1,96 +0,0 @@ -/* -------------------------------------------------------------- */ -/* (C)Copyright 2001,2007, */ -/* International Business Machines Corporation, */ -/* Sony Computer Entertainment, Incorporated, */ -/* Toshiba Corporation, */ -/* */ -/* 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 Corporation 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. */ -/* -------------------------------------------------------------- */ -/* PROLOG END TAG zYx */ -#ifndef _PPU_COND_WAIT_H_ -#define _PPU_COND_WAIT_H_ - -#include <ppu_intrinsics.h> -#include "sync_utils.h" -#include "mutex_lock.h" -#include "mutex_unlock.h" -#include "cond.h" - -static __inline void _cond_wait (cond_ea_t cond, mutex_ea_t mutex) -{ - int delta, cur_delta; - unsigned int val, cond_val, signaled_cnt; - void *p; - - - SYNC_ULL_TO_PTR(cond, p); - - /* Atomically signal we have entered the condition wait by incrementing - * the waiting count. - */ - do { - val = __lwarx(p); - val = (val & ~0xFFFF) | ((val+1) & 0xFFFF); - } while (__stwcx(p, val) == 0); - - - /* Release the lock - */ - _mutex_unlock (mutex); - - /* Determine the signal count needed for this - * participant to be signaled. - */ - - signaled_cnt = val >> 16; - delta = (int)(val & 0xFFFF) - (int)signaled_cnt; - if (delta < 0) delta = -delta; - - /* Wait until the signaled count reaches the count - * previously determined. - */ - do { - cond_val = __lwarx(p); - - cur_delta = (int)(cond_val >> 16) - signaled_cnt; - if (cur_delta < 0) cur_delta = -cur_delta; - - } while (cur_delta < delta); - - /* Relock the mutex - */ - _mutex_lock (mutex); -} - -#endif /* _PPU_COND_WAIT_H_ */ |