diff options
Diffstat (limited to 'gcell/ibm/sync/spu_source/read_unlock.h')
| -rw-r--r-- | gcell/ibm/sync/spu_source/read_unlock.h | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/gcell/ibm/sync/spu_source/read_unlock.h b/gcell/ibm/sync/spu_source/read_unlock.h deleted file mode 100644 index f011550e5..000000000 --- a/gcell/ibm/sync/spu_source/read_unlock.h +++ /dev/null @@ -1,88 +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 _SPU_READ_UNLOCK_H_ -#define _SPU_READ_UNLOCK_H_ - -#include "sync_utils.h" -#include "mutex.h" -#include <spu_mfcio.h> - - -/** - * read_unlock - release reader lock. - * @ea: handle to effective address of lock variable. - * - * Description: Release a reader lock. The only restriction - * here is that @ea must be word aligned. - * - * Context: This routine should be used when interrupts - * do not need to be re-enabled --either because interrupts - * are not being used, or because the application will take - * steps to re-enable them later. - */ -static __inline void _read_unlock(eaddr_t ea) -{ - DECL_MUTEX_VARS(); - s32 status; - - /* _read_unlock - * - * Reader locks must use PUTLLC when releasing, instead of - * the more traditional PUTLLUC because of the non-exclusive - * nature of the lock. The reason for this is that other - * readers may have incremented the counter, and we don't - * want to corrupt it by blindly issuing PUTLLUC!! - */ - ea64.ull = ALIGN128_EA(ea); - offset = OFFSET128_EA_U32(ea); - do { - MFC_DMA(buf, ea64, size, tagid, MFC_GETLLAR_CMD); - spu_readch(MFC_RdAtomicStat); - - buf[offset] -= 1; - MFC_DMA(buf, ea64, size, tagid, MFC_PUTLLC_CMD); - status = spu_readch(MFC_RdAtomicStat); - } while (status != 0); - -} - - -#endif /* _SPU_READ_UNLOCK_H_ */ |