+++ /dev/null
-/* -------------------------------------------------------------- */
-/* (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 */
projects / debian / gnuradio / blobdiff