Author: nwhitehorn
Date: Sun Jan 15 16:57:18 2012
New Revision: 230139
URL: http://svn.freebsd.org/changeset/base/230139
Log:
Now that we can tolerate LPAR context switches on the PS3 hypervisor, going
to hypervisor-idle on both threads will not hang the kernel.
Modified:
head/sys/powerpc/ps3/platform_ps3.c
Modified: head/sys/powerpc/ps3/platform_ps3.c
==============================================================================
--- head/sys/powerpc/ps3/platform_ps3.c Sun Jan 15 14:03:05 2012
(r230138)
+++ head/sys/powerpc/ps3/platform_ps3.c Sun Jan 15 16:57:18 2012
(r230139)
@@ -247,16 +247,6 @@ ps3_real_maxaddr(platform_t plat)
static void
ps3_cpu_idle(void)
{
- static volatile int pausing = 0;
-
- /*
- * XXX: It appears that the PS3 can livelock if both threads
- * call lv1_pause(0) simultaneously.
- */
- if (!atomic_cmpset_int(&pausing, 0, 1))
- return;
-
lv1_pause(0);
- pausing = 0;
}
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