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[POWERPC] Fix problem with time not advancing on 32-bit platforms

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This fixes a problem introduced in 5db9fa9593.
The last_jiffy per-cpu variable is only 32 bits on 32-bit machines, but it
was being compared with a 64-bit quantity (tb_next_jiffy), which resulted in
time not advancing.

This fixes it by changing last_jiffy to be 64 bits on all platforms.  With
this, we no longer need tb_last_stamp as a 32-bit version of tb_last_jiffy,
so this gets rid of tb_last_stamp and we just use tb_last_jiffy instead.
This also fixes a bug when the boot cpu is not online, because using
tb_last_stamp could have caused the wrong timebase origin value to be used
when calculating the time of day.

Signed-off-by: Paul Mackerras <[email protected]>
This commit is contained in:
Paul Mackerras 2006-08-30 15:55:32 +10:00
commit e0d872d536
2 changed files with 8 additions and 21 deletions
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4
include/asm-powerpc/time.h
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@ -30,10 +30,6 @@ extern unsigned long tb_ticks_per_usec;
extern unsigned long tb_ticks_per_sec;
extern u64 tb_to_xs;
extern unsigned tb_to_us;
extern unsigned long tb_last_stamp;
extern u64 tb_last_jiffy;
DECLARE_PER_CPU(unsigned long, last_jiffy);
struct rtc_time;
extern void to_tm(int tim, struct rtc_time * tm);