[lkml]   [2007]   [May]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver
> +	 * We must write a positive value to the decrementer to clear
> + * the interrupt on the IBM 970 CPU series. In periodic mode,
> + * this happens when the decrementer gets reloaded later, but
> + * in one-shot mode, we have to do it here since an event handler
> + * may skip loading the new value...

Nothing special about 970 here -- on *every* PowerPC,
a decrementer exception exists as long as the high
bit of the decrementer equals 1. BookE is different
of course. Some other CPUs might deviate from the
architecture as well.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2007-05-17 21:29    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean