Author: nyan
Date: Fri Mar 5 11:11:42 2010
New Revision: 204753
URL: http://svn.freebsd.org/changeset/base/204753
Log:
MFx86: the part of r204641
In order to do that cleanly, lapic_setup_clock(), on both ia32 and amd64,
now accepts as arguments the desired sources to handle, and returns the
actual ones (LAPIC_CLOCK_NONE is forbidden because otherwise there is no
meaning in calling such function).
This allows to bring out into commont x86 code the handling part for
machdep.lapic_allclocks tunable, which is retained.
Modified:
head/sys/pc98/cbus/clock.c
Modified: head/sys/pc98/cbus/clock.c
==============================================================================
--- head/sys/pc98/cbus/clock.c Fri Mar 5 06:06:20 2010 (r204752)
+++ head/sys/pc98/cbus/clock.c Fri Mar 5 11:11:42 2010 (r204753)
@@ -93,6 +93,9 @@ TUNABLE_INT("hw.i8254.freq", &i8254_freq
int i8254_max_count;
static int i8254_real_max_count;
+static int lapic_allclocks;
+TUNABLE_INT("machdep.lapic_allclocks", &lapic_allclocks);
+
static struct mtx clock_lock;
static struct intsrc *i8254_intsrc;
static u_int32_t i8254_lastcount;
@@ -432,9 +435,11 @@ startrtclock()
void
cpu_initclocks()
{
+#if defined(DEV_APIC)
+ enum lapic_clock tlsca;
-#ifdef DEV_APIC
- using_lapic_timer = lapic_setup_clock();
+ tlsca = lapic_allclocks == 0 ? LAPIC_CLOCK_HARDCLOCK : LAPIC_CLOCK_ALL;
+ using_lapic_timer = lapic_setup_clock(tlsca);
#endif
/*
* If we aren't using the local APIC timer to drive the kernel
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