Re: [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver

From
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date
2007-05-19 00:14:21
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Reply to
Segher Boessenkool, 2007-05-18
On Sat, 2007-05-19 at 01:49 +0200, Segher Boessenkool wrote:
quoted
I find it extremely silly to implement it as edge anyway. The EE line 
is
level triggered, and having a mix of edge and level on the same
exception without a clean way to retrigger the DEC one other than
waiting one tick is just causing trouble.
It isn't edge triggered, it just automatically clears the
decrementer exception condition at its source when taken
Which is exactly the same thing software-wise as edge triggered... 

Ben.
Thread (50 messages) 50 messages, 12 authors, last reply 2007-10-18
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