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| author | john stultz <johnstul@us.ibm.com> | 2006-06-26 00:25:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 09:58:21 -0700 |
| commit | 539eb11e6e904f2cd4f62908cc5e44d724879721 (patch) | |
| tree | df18c747c5226b138862fb19fad5b1527055b9c9 /arch/i386/kernel/numaq.c | |
| parent | 8d016ef1380a2a9a5ca5742ede04334199868f82 (diff) | |
| download | linux-539eb11e6e904f2cd4f62908cc5e44d724879721.tar.gz | |
[PATCH] Time: i386 Conversion - part 2: Rework TSC Support
As part of the i386 conversion to the generic timekeeping infrastructure, this
introduces a new tsc.c file. The code in this file replaces the TSC
initialization, management and access code currently in timer_tsc.c (which
will be removed) that we want to preserve.
The code also introduces the following functionality:
o tsc_khz: like cpu_khz but stores the TSC frequency on systems that do not
change TSC frequency w/ CPU frequency
o check/mark_tsc_unstable: accessor/modifier flag for TSC timekeeping
usability
o minor cleanups to calibration math.
This patch also includes a one line __cpuinitdata fix from Zwane Mwaikambo.
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386/kernel/numaq.c')
| -rw-r--r-- | arch/i386/kernel/numaq.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/i386/kernel/numaq.c b/arch/i386/kernel/numaq.c index 5f5b075f860a8c..0caf14652badfc 100644 --- a/arch/i386/kernel/numaq.c +++ b/arch/i386/kernel/numaq.c @@ -79,10 +79,12 @@ int __init get_memcfg_numaq(void) return 1; } -static int __init numaq_dsc_disable(void) +static int __init numaq_tsc_disable(void) { - printk(KERN_DEBUG "NUMAQ: disabling TSC\n"); - tsc_disable = 1; + if (num_online_nodes() > 1) { + printk(KERN_DEBUG "NUMAQ: disabling TSC\n"); + tsc_disable = 1; + } return 0; } -core_initcall(numaq_dsc_disable); +arch_initcall(numaq_tsc_disable); |