src/mcas/sparc_defns.h

   1 /*
   2 Copyright (c) 2003, Keir Fraser All rights reserved.
   3
   4 Redistribution and use in source and binary forms, with or without
   5 modification, are permitted provided that the following conditions are
   6 met:
   7
   8     * Redistributions of source code must retain the above copyright
   9     * notice, this list of conditions and the following disclaimer.
  10     * Redistributions in binary form must reproduce the above
  11     * copyright notice, this list of conditions and the following
  12     * disclaimer in the documentation and/or other materials provided
  13     * with the distribution.  Neither the name of the Keir Fraser
  14     * nor the names of its contributors may be used to endorse or
  15     * promote products derived from this software without specific
  16     * prior written permission.
  17
  18 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29 */
  30
  31 #ifndef __SPARC_DEFNS_H__
  32 #define __SPARC_DEFNS_H__
  33
  34 #ifndef SPARC
  35 #define SPARC
  36 #endif
  37
  38 #include <sys/types.h>
  39 #include <sys/processor.h>
  40 #include <sys/procset.h>
  41 #include <sched.h>
  42 #include <alloca.h>
  43
  44 #define CACHE_LINE_SIZE 64
  45
  46 #if 1
  47 #include <thread.h>
  48 #define pthread_mutex_t mutex_t
  49 #define pthread_cond_t  cond_t
  50 #define pthread_t       thread_t
  51 #define pthread_key_t   thread_key_t
  52 #define pthread_create(_a,_b,_c,_d) thr_create(NULL,0,_c,_d,THR_BOUND|THR_NEW_LWP,_a)
  53 #define pthread_join(_a,_b) thr_join(_a,NULL,NULL)
  54 #define pthread_key_create(_a,_b) thr_keycreate(_a,_b)
  55 #define pthread_setspecific(_a,_b) thr_setspecific(_a,_b)
  56 static void *pthread_getspecific(pthread_key_t _a)
  57 {
  58     void *__x;
  59     thr_getspecific(_a,&__x);
  60     return __x;
  61 }
  62 #define pthread_setconcurrency(_x) thr_setconcurrency(_x)
  63 #define pthread_mutex_init(_a,_b) mutex_init(_a,USYNC_THREAD,NULL)
  64 #define pthread_mutex_lock(_a) mutex_lock(_a)
  65 #define pthread_mutex_unlock(_a) mutex_unlock(_a)
  66 #define pthread_cond_init(_a,_b) cond_init(_a,USYNC_THREAD,NULL)
  67 #define pthread_cond_wait(_a,_b) cond_wait(_a,_b)
  68 #define pthread_cond_broadcast(_a) cond_broadcast(_a)
  69 #else
  70 #include <pthread.h>
  71 #endif
  72
  73
  74 /*
  75  * I. Compare-and-swap.
  76  */
  77
  78 typedef unsigned long long _u64;
  79
  80 extern int CASIO_internal(int *, int, int);
  81 extern void * CASPO_internal(void *, void *, void *);
  82 extern _u64 CAS64O_internal(_u64 *, _u64, _u64);
  83 #define CASIO(_a,_o,_n) (CASIO_internal((int*)(_a),(int)(_o),(int)(_n)))
  84 #define CASPO(_a,_o,_n) (CASPO_internal((void*)(_a),(void*)(_o),(void*)(_n)))
  85 #define CAS32O(_a,_o,_n) (_u32)(CASIO_internal((int *)_a,(int)_o,(int)_n))
  86 #define CAS64O(_a,_o,_n) (CAS64O_internal((_u64 *)_a,(_u64)_o,(_u64)_n))
  87
  88 static int FASIO(int *a, int n)
  89 {
  90     int no, o = *a;
  91     while ( (no = CASIO(a, o, n)) != o ) o = no;
  92     return o;
  93 }
  94
  95 static void *FASPO(void *a, void *n)
  96 {
  97     void *no, *o = *(void **)a;
  98     while ( (no = CASPO(a, o, n)) != o ) o = no;
  99     return o;
 100 }
 101
 102
 103 /*
 104  * II. Memory barriers.
 105  *  WMB(): All preceding write operations must commit before any later writes.
 106  *  RMB(): All preceding read operations must commit before any later reads.
 107  *  MB():  All preceding memory accesses must commit before any later accesses.
 108  *
 109  *  If the compiler does not observe these barriers (but any sane compiler
 110  *  will!), then VOLATILE should be defined as 'volatile'.
 111  */
 112
 113 extern void MEMBAR_ALL(void);
 114 extern void MEMBAR_STORESTORE(void);
 115 extern void MEMBAR_LOADLOAD(void);
 116 #define MB()  MEMBAR_ALL()
 117 #define WMB() MEMBAR_STORESTORE()
 118 #define RMB() MEMBAR_LOADLOAD()
 119 #define VOLATILE /*volatile*/
 120
 121
 122 /*
 123  * III. Cycle counter access.
 124  */
 125
 126 typedef unsigned long tick_t;
 127 extern tick_t RDTICK(void);
 128
 129
 130 /*
 131  * IV. Types.
 132  */
 133
 134 typedef unsigned char      _u8;
 135 typedef unsigned short     _u16;
 136 typedef unsigned int       _u32;
 137
 138 #endif /* __SPARC_DEFNS_H__ */