[PATCH] ipic: ack only for edge interrupts

[Kumar Gala]

On Dec 4, 2007, at 5:01 AM, Li Yang wrote:

> Only external interrupts in edge detect mode support ack operation.
> Therefore, in most cases ack is not needed.  The patch makes ipic
> ack only when it's needed.  This could boost over all system  
> performance.
>
> Signed-off-by: Li Yang <leoli at freescale.com>
> Cc: Benjamin Herrenschmidt <benh at kernel.crashing.org>
> ---
> Update to use different irq_chip for level and edge interrupts as Ben
> suggested.
> Supercedes [PATCH] ipic: change ack operation that register is  
> accessed
> only when needed
>
> arch/powerpc/sysdev/ipic.c |  113 ++++++++++++++++ 
> +---------------------------
> arch/powerpc/sysdev/ipic.h |    6 +--
> 2 files changed, 45 insertions(+), 74 deletions(-)

applied.

- k