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authorSebastian Huber <sebastian.huber@embedded-brains.de>2018-09-14 14:04:09 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-09-21 10:29:42 +0200
commit1af372a5eeaba3115f139e4efc0204e2cd7208bb (patch)
tree56f12d79bdbd298fcfd1891d3da7db34f244d670 /freebsd/sys/contrib/ck/include/gcc/ppc/ck_pr.h
parentUpdate to FreeBSD head 2018-09-17 (diff)
downloadrtems-libbsd-1af372a5eeaba3115f139e4efc0204e2cd7208bb.tar.bz2
ck: No hardware barriers in uniprocessor configs
Update #3472.
Diffstat (limited to '')
-rw-r--r--freebsd/sys/contrib/ck/include/gcc/ppc/ck_pr.h13
1 files changed, 10 insertions, 3 deletions
diff --git a/freebsd/sys/contrib/ck/include/gcc/ppc/ck_pr.h b/freebsd/sys/contrib/ck/include/gcc/ppc/ck_pr.h
index 73f0cb78..c10b2092 100644
--- a/freebsd/sys/contrib/ck/include/gcc/ppc/ck_pr.h
+++ b/freebsd/sys/contrib/ck/include/gcc/ppc/ck_pr.h
@@ -67,22 +67,28 @@ ck_pr_stall(void)
__asm__ __volatile__(I ::: "memory"); \
}
+#ifdef RTEMS_SMP
#ifdef CK_MD_PPC32_LWSYNC
#define CK_PR_LWSYNCOP "lwsync"
#else /* CK_MD_PPC32_LWSYNC_DISABLE */
#define CK_PR_LWSYNCOP "sync"
#endif
+#define CK_PR_SYNCOP "sync"
+#else /* !RTEMS_SMP */
+#define CK_PR_LWSYNCOP ""
+#define CK_PR_SYNCOP ""
+#endif /* RTEMS_SMP */
CK_PR_FENCE(atomic, CK_PR_LWSYNCOP)
CK_PR_FENCE(atomic_store, CK_PR_LWSYNCOP)
-CK_PR_FENCE(atomic_load, "sync")
+CK_PR_FENCE(atomic_load, CK_PR_SYNCOP)
CK_PR_FENCE(store_atomic, CK_PR_LWSYNCOP)
CK_PR_FENCE(load_atomic, CK_PR_LWSYNCOP)
CK_PR_FENCE(store, CK_PR_LWSYNCOP)
-CK_PR_FENCE(store_load, "sync")
+CK_PR_FENCE(store_load, CK_PR_SYNCOP)
CK_PR_FENCE(load, CK_PR_LWSYNCOP)
CK_PR_FENCE(load_store, CK_PR_LWSYNCOP)
-CK_PR_FENCE(memory, "sync")
+CK_PR_FENCE(memory, CK_PR_SYNCOP)
CK_PR_FENCE(acquire, CK_PR_LWSYNCOP)
CK_PR_FENCE(release, CK_PR_LWSYNCOP)
CK_PR_FENCE(acqrel, CK_PR_LWSYNCOP)
@@ -90,6 +96,7 @@ CK_PR_FENCE(lock, CK_PR_LWSYNCOP)
CK_PR_FENCE(unlock, CK_PR_LWSYNCOP)
#undef CK_PR_LWSYNCOP
+#undef CK_PR_SYNCOP
#undef CK_PR_FENCE