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authorJim Pirzyk <pirzyk@FreeBSD.org>2002-10-17 05:51:36 +0000
committerJim Pirzyk <pirzyk@FreeBSD.org>2002-10-17 05:51:36 +0000
commitc8c1cf0ca7740511b61740dc5d1e3c790c89244c (patch)
treeb8fceb3ca0bfde5c10f875ef76cb48ccac17cd82 /sys/amd64/include/smp.h
parent30c0d52181db07997c9d17ae6cb694146fb83ddc (diff)
Notes
Diffstat (limited to 'sys/amd64/include/smp.h')
-rw-r--r--sys/amd64/include/smp.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/amd64/include/smp.h b/sys/amd64/include/smp.h
index d669c51056b7..ef5e68470c47 100644
--- a/sys/amd64/include/smp.h
+++ b/sys/amd64/include/smp.h
@@ -21,6 +21,9 @@
#if defined(SMP) && !defined(APIC_IO)
# error APIC_IO required for SMP, add "options APIC_IO" to your config file.
#endif /* SMP && !APIC_IO */
+#if defined(SMP) && defined(CPU_DISABLE_CMPXCHG)
+#error SMP not supported with CPU_DISABLE_CMPXCHG
+#endif
#if defined(SMP) || defined(APIC_IO)