+++ /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 */
-/*
- * atomic.h - SPU atomic SHM counter operations.
- *
- * Interfaces patterned after, and hopefully compatible
- * with PowerPC64-Linux atomic counter operations. Uses
- * 32b values for various counters.
- */
-#ifndef _SPU_ATOMIC_H_
-#define _SPU_ATOMIC_H_
-
-#include <sync_utils.h>
-#include <spu_mfcio.h>
-
-
-/* atomic_eaddr_t is a 64bit effective address
- * that points to an atomic_t variable */
-typedef unsigned long long atomic_ea_t;
-
-#define DECL_ATOMIC_VARS() \
- char _tmp[256]; \
- char *tmp = (char *) ALIGN(_tmp, 128); \
- volatile s32 *buf = (volatile s32 *) &tmp[0]; \
- u32 size = 128, tagid = 0; \
- s32 ret_val; \
- u32 offset; \
- addr64 ea64
-
-/* __atomic_op
-* Internal routine to acquire lock line reservation
-* then conditionally modify the counter variable
-* pointed to by 'v'. The 'replace' flag indicates
-* whether or not this is to be an arithmetic R-M-W
-* or a simple replace operation.
-*/
-#define ATOMIC_OP(__v, __val, __replace, __final_val) \
-{ \
- char __tmp[256]; \
- char *_tmp = (char *) ALIGN(__tmp, 128); \
- volatile s32 *_buf = (volatile s32 *) &_tmp[0]; \
- u32 _size = 128, _tagid = 0; \
- s32 _status, _ret_val; \
- u32 _offset; \
- addr64 _ea64; \
- \
- _ea64.ull = ALIGN128_EA(__v); \
- _offset = OFFSET128_EA_U32(__v); \
- do { \
- MFC_DMA(_buf, _ea64, _size, _tagid, MFC_GETLLAR_CMD); \
- spu_readch (MFC_RdAtomicStat); \
- \
- _ret_val = _buf[_offset]; \
- _buf[_offset] = (__replace) ? __val : _ret_val + __val; \
- MFC_DMA(_buf, _ea64, _size, _tagid, MFC_PUTLLC_CMD); \
- _status = spu_readch(MFC_RdAtomicStat); \
- } while (_status != 0); \
- \
- __final_val = _ret_val; \
-}
-
-#endif /* _SPU_ATOMIC_H_ */
-
projects / debian / gnuradio / blobdiff