diff options
Diffstat (limited to 'gcell/ibm/sync/spu_source/mutex.h')
| -rw-r--r-- | gcell/ibm/sync/spu_source/mutex.h | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/gcell/ibm/sync/spu_source/mutex.h b/gcell/ibm/sync/spu_source/mutex.h deleted file mode 100644 index 37f2b4d62..000000000 --- a/gcell/ibm/sync/spu_source/mutex.h +++ /dev/null @@ -1,178 +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_MUTEX_H_ -#define _SPU_MUTEX_H_ 1 - -#include "sync_utils.h" -#include "sync_irq.h" -#include <spu_mfcio.h> - -typedef eaddr_t mutex_ea_t; - -#define DECL_MUTEX_VARS() \ - char _tmp[256]; \ - char *tmp = (char *) ALIGN(_tmp, 128); \ - volatile s32 *buf = (volatile s32 *) &tmp[0]; \ - u32 size = 128, tagid = 0; \ - u32 offset; \ - addr64 ea64 - -/* RAW_TEST_AND_SET - * Macro implementing the test and set primitive. - * - * RAW_TEST_AND_SET(==, 1) used by spin_try_lock() - * RAW_TEST_AND_SET(>=, 1) used by read_try_lock() - * RAW_TEST_AND_SET(==, -1) used by write_try_lock() - */ -#define RAW_TEST_AND_SET(_RELOP_, _val) \ - ea64.ull = ALIGN128_EA(ea); \ - offset = OFFSET128_EA_U32(ea); \ - do { \ - MFC_DMA(buf, ea64, size, tagid, MFC_GETLLAR_CMD); \ - spu_readch(MFC_RdAtomicStat); \ - SET_HIT; \ - if (likely(buf[offset] _RELOP_ 0)) { \ - buf[offset] += _val; \ - MFC_DMA(buf, ea64, size, tagid, MFC_PUTLLC_CMD); \ - status = spu_readch(MFC_RdAtomicStat); \ - ret_val = 1; \ - } else { \ - MFC_DMA(buf, ea64, size, tagid, MFC_PUTLLC_CMD); \ - spu_readch(MFC_RdAtomicStat); \ - status = ret_val = 0; \ - break; \ - } \ - } while (status != 0) - -/* RAW_SPINLOCK - * Macro implementing the spinlock primitive. - * - * RAW_SPINLOCK(==, 1) used by spin_lock() - * RAW_SPINLOCK(>=, 1) used by read_lock() - * RAW_SPINLOCK(==, -1) used by write_lock() - */ - - -#define RAW_SPINLOCK(_RELOP_, _val) \ - ea64.ull = ALIGN128_EA(ea); \ - offset = OFFSET128_EA_U32(ea); \ - do { \ - MFC_DMA(buf, ea64, size, tagid, MFC_GETLLAR_CMD); \ - spu_readch(MFC_RdAtomicStat); \ - SET_HIT; \ - status = 1; \ - if (likely(buf[offset] _RELOP_ 0)) { \ - buf[offset] += _val; \ - MFC_DMA(buf, ea64, size, tagid, MFC_PUTLLC_CMD); \ - status = spu_readch(MFC_RdAtomicStat); \ - } \ - } while (status != 0); - - -static inline void _lock_init(eaddr_t ea) -{ - DECL_MUTEX_VARS(); - u32 oldtmask, tagmask; - - tagid = mfc_tag_reserve(); - - tagmask = 1 << (tagid & 31); - - /* __lock_init - * Internal routine to initialize a spinlock or - * reader/writer lock. - */ - ea64.ull = ALIGN128_EA(ea); - offset = OFFSET128_EA_U32(ea); - MFC_DMA(buf, ea64, size, tagid & 31, MFC_GET_CMD); - oldtmask = spu_readch(MFC_RdTagMask); - spu_writech(MFC_WrTagMask, tagmask); - spu_writech(MFC_WrTagUpdate, MFC_TAG_UPDATE_ANY); - spu_readch(MFC_RdTagStat); - - buf[offset] = 0; - MFC_DMA(buf, ea64, size, tagid & 31, MFC_PUT_CMD); - spu_writech(MFC_WrTagMask, tagmask); - spu_writech(MFC_WrTagUpdate, MFC_TAG_UPDATE_ANY); - spu_readch(MFC_RdTagStat); - spu_writech(MFC_WrTagMask, oldtmask); - mfc_tag_release(tagid); -} - -static inline void _spin_lock(eaddr_t ea) -{ - DECL_MUTEX_VARS(); - s32 status; - - /* _spin_lock - * Internal routine to acquire spinlock. - */ -/* non trace - no hit/miss indicator */ -#define SET_HIT - RAW_SPINLOCK(==, 1); -} - -#ifdef LIBSYNC_TRACE -static inline s32 _spin_lock_trace(eaddr_t ea) -{ - DECL_MUTEX_VARS(); - s32 status = 0; -/* trace - need hit/miss indicator */ -#undef SET_HIT -#define SET_HIT if (status == 0) hit = buf[offset] - s32 hit; - - hit = 0; - /* _spin_lock_trace for trace - * Internal routine to acquire spinlock. - */ - RAW_SPINLOCK(==, 1); - - return hit; - -#undef SET_HIT -#define SET_HIT -} - -#endif /* LIBSYNC_TRACE */ - - -#endif /* SPU_MUTEX_H */ |