userspace-rcu formal model removal

[urcu.git] / formal-model / ooomem-no-sched / mem.spin

diff --git a/formal-model/ooomem-no-sched/mem.spin b/formal-model/ooomem-no-sched/mem.spin
deleted file mode 100644 (file)
index 9359a5a..0000000
--- a/formal-model/ooomem-no-sched/mem.spin
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * mem.spin: Promela code to validate memory barriers with OOO memory.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (c) 2009 Mathieu Desnoyers
- */
-
-/*
- * Out-of-order memory model _without_ out-of-order instruction scheduling.
- */
-
-/* Promela validation variables. */
-
-#define NR_READERS 1
-#define NR_WRITERS 1
-
-#define NR_PROCS 2
-
-#define get_pid()      (_pid)
-
-/*
- * Each process have its own data in cache. Caches are randomly updated.
- * smp_wmb and smp_rmb forces cache updates (write and read), wmb_mb forces
- * both.
- */
-
-#define DECLARE_CACHED_VAR(type, x, v) \
-       type mem_##x = v;               \
-       type cached_##x[NR_PROCS] = v;  \
-       bit cache_dirty_##x[NR_PROCS] = 0
-
-#define IS_CACHE_DIRTY(x, id)  (cache_dirty_##x[id])
-
-#define READ_CACHED_VAR(x)     (cached_##x[get_pid()])
-
-#define WRITE_CACHED_VAR(x, v)         \
-       atomic {                        \
-               cached_##x[get_pid()] = v;      \
-               cache_dirty_##x[get_pid()] = 1; \
-       }
-
-#define CACHE_WRITE_TO_MEM(x, id)              \
-       if                                      \
-       :: IS_CACHE_DIRTY(x, id) ->             \
-               mem_##x = cached_##x[id];       \
-               cache_dirty_##x[id] = 0;        \
-       :: else ->                              \
-               skip                            \
-       fi;
-
-#define CACHE_READ_FROM_MEM(x, id)     \
-       if                              \
-       :: !IS_CACHE_DIRTY(x, id) ->    \
-               cached_##x[id] = mem_##x;\
-       :: else ->                      \
-               skip                    \
-       fi;
-
-/*
- * May update other caches if cache is dirty, or not.
- */
-#define RANDOM_CACHE_WRITE_TO_MEM(x, id)\
-       if                              \
-       :: 1 -> CACHE_WRITE_TO_MEM(x, id);      \
-       :: 1 -> skip                    \
-       fi;
-
-#define RANDOM_CACHE_READ_FROM_MEM(x, id)\
-       if                              \
-       :: 1 -> CACHE_READ_FROM_MEM(x, id);     \
-       :: 1 -> skip                    \
-       fi;
-
-inline smp_rmb()
-{
-       atomic {
-               CACHE_READ_FROM_MEM(alpha, get_pid());
-               CACHE_READ_FROM_MEM(beta, get_pid());
-       }
-}
-
-inline smp_wmb()
-{
-       atomic {
-               CACHE_WRITE_TO_MEM(alpha, get_pid());
-               CACHE_WRITE_TO_MEM(beta, get_pid());
-       }
-}
-
-inline smp_mb()
-{
-       atomic {
-               smp_wmb();
-               smp_rmb();
-       }
-}
-
-/* Keep in sync manually with smp_rmb, wmp_wmb and ooo_mem */
-DECLARE_CACHED_VAR(byte, alpha, 0);
-DECLARE_CACHED_VAR(byte, beta, 0);
-
-inline ooo_mem()
-{
-       atomic {
-               RANDOM_CACHE_WRITE_TO_MEM(alpha, get_pid());
-               RANDOM_CACHE_WRITE_TO_MEM(beta, get_pid());
-               RANDOM_CACHE_READ_FROM_MEM(alpha, get_pid());
-               RANDOM_CACHE_READ_FROM_MEM(beta, get_pid());
-       }
-}
-
-#define get_readerid() (get_pid())
-
-byte first_read[NR_READERS];
-byte second_read[NR_READERS];
-
-active [NR_READERS] proctype test_reader()
-{
-       assert(get_pid() < NR_PROCS);
-
-       ooo_mem();
-       first_read[get_readerid()] = READ_CACHED_VAR(beta);
-       ooo_mem();
-#ifndef NO_RMB
-       smp_rmb();
-       ooo_mem();
-#endif
-       second_read[get_readerid()] = READ_CACHED_VAR(alpha);
-       ooo_mem();
-       // test : [] (first_read == 6 -> <> second_read == 4)
-       assert(first_read[get_readerid()] != 6
-               || second_read[get_readerid()] == 4);
-}
-
-#define get_writerid() (get_readerid() + NR_READERS)
-
-active [NR_WRITERS] proctype test_writer()
-{
-       byte i;
-
-       assert(get_pid() < NR_PROCS);
-
-       ooo_mem();
-       WRITE_CACHED_VAR(alpha, 4);
-       ooo_mem();
-#ifndef NO_WMB
-       smp_wmb();
-       ooo_mem();
-#endif
-       WRITE_CACHED_VAR(beta, 6);
-       ooo_mem();
-}