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authorjohn stultz <johnstul@us.ibm.com>2005-12-12 22:17:13 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-12-12 22:31:16 -0800
commitfd4954714e8e7db9f6eb5878fa6111c46445ca81 (patch)
tree189264d0e9ae74930a3118f3a480ffff233a742a /arch
parentdf818a52fb5e64c72b21029fb9ba80583106932c (diff)
downloadblackbird-op-linux-fd4954714e8e7db9f6eb5878fa6111c46445ca81.tar.gz
blackbird-op-linux-fd4954714e8e7db9f6eb5878fa6111c46445ca81.zip
[PATCH] x86_64: Fix collision between pmtimer and pit/hpet
On systems that do not support the HPET legacy functions (basically the IBM x460, but there could be others), in time_init() we accidentally fall into a PM timer conditional and set the vxtime_hz value to the PM timer's frequency. We then use this value with the HPET for timekeeping. This patch (which mimics the behavior in time_init_gtod) corrects the collision. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86_64/kernel/time.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c
index 4434e154f596..74102796e5c0 100644
--- a/arch/x86_64/kernel/time.c
+++ b/arch/x86_64/kernel/time.c
@@ -915,7 +915,7 @@ void __init time_init(void)
cpu_khz = hpet_calibrate_tsc();
timename = "HPET";
#ifdef CONFIG_X86_PM_TIMER
- } else if (pmtmr_ioport) {
+ } else if (pmtmr_ioport && !vxtime.hpet_address) {
vxtime_hz = PM_TIMER_FREQUENCY;
timename = "PM";
pit_init();
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