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| author | Kyle McMartin <kyle@mako.i.cabal.ca> | 2007-02-27 06:21:22 +0300 |
|---|---|---|
| committer | Kyle McMartin <kyle@mako.i.cabal.ca> | 2007-02-27 06:21:22 +0300 |
| commit | 01363220f5d23ef68276db8974e46a502e43d01d (patch) | |
| tree | 1cbb083b854f58036396252cc16dc7cd5ffc2363 /arch/parisc/kernel | |
| parent | fb55a0debee81280684b68713024d0c5e62e8aa5 (diff) | |
| download | linux-01363220f5d23ef68276db8974e46a502e43d01d.tar.xz | |
[PARISC] clocksource: Move update_cr16_clocksource later in boot
smp_cpus_done is too early for us... before we even do a device
inventory! Move update_cr16_clocksource into the tail end of
processor_probe() and stub it out on CONFIG_SMP=n builds.
Verified that clocksource0 is properly updated to use jiffies
on an SMP build.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Diffstat (limited to 'arch/parisc/kernel')
| -rw-r--r-- | arch/parisc/kernel/processor.c | 8 | ||||
| -rw-r--r-- | arch/parisc/kernel/smp.c | 4 | ||||
| -rw-r--r-- | arch/parisc/kernel/time.c | 5 |
3 files changed, 13 insertions, 4 deletions
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c index 7c056dcebf55..dd5d0cb6b347 100644 --- a/arch/parisc/kernel/processor.c +++ b/arch/parisc/kernel/processor.c @@ -48,6 +48,8 @@ EXPORT_SYMBOL(boot_cpu_data); struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly; +extern int update_cr16_clocksource(void); /* from time.c */ + /* ** PARISC CPU driver - claim "device" and initialize CPU data structures. ** @@ -198,6 +200,12 @@ static int __init processor_probe(struct parisc_device *dev) } #endif + /* If we've registered more than one cpu, + * we'll use the jiffies clocksource since cr16 + * is not synchronized between CPUs. + */ + update_cr16_clocksource(); + return 0; } diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index bb6e6a38e911..6ba9257fdb7f 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -567,10 +567,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus) void smp_cpus_done(unsigned int cpu_max) { - extern int update_cr16_clocksource(void); - - update_cr16_clocksource(); - return; } diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c index 9b14066d693c..07a991aa9b0c 100644 --- a/arch/parisc/kernel/time.c +++ b/arch/parisc/kernel/time.c @@ -200,6 +200,11 @@ int update_cr16_clocksource(void) return change; } +#else +int update_cr16_clocksource(void) +{ + return 0; /* no change */ +} #endif /*CONFIG_SMP*/ void __init start_cpu_itimer(void) |