[IA64] Fix CONFIG_PRINTK_TIME

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There were two problems with enabling the PRINTK_TIME config
option:
1) The first calls to printk() occur before per-cpu data virtual
address is pinned into the TLB, so sched_clock() can fault.
2) sched_clock() is based on ar.itc, which may not be synchronized
across cpus.

Ken Chen started this patch, Tony Luck tinkered with it, and Jes
Sorensen perfected it.

Signed-off-by: Tony Luck <tony.luck@intel.com>

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This commit is contained in:

Tony Luck 2006-02-07 15:25:57 -08:00

parent 9d78f43d1f

commit d6e56a2a08

4 changed files with 59 additions and 13 deletions

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1

arch/ia64/kernel/head.S

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4

arch/ia64/kernel/setup.c

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27

arch/ia64/kernel/time.c

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40

arch/ia64/sn/kernel/setup.c

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