On Tuesday 03 November 2015 16:07:34 Sinan Kaya wrote:
> On 11/3/2015 5:43 AM, Arnd Bergmann wrote:
> > Ok, got it.
> >
> > Best add an explanation like the above in the interrupt handler,
> > to prevent this from accidentally getting 'cleaned up' to use
> > readl(), or copied into a driver that uses PCI ordering rules
> > where it is actually wrong.
> >
>
> I'm adding this disclaimer into the ISR routine.
>
> /*
> * Fine tuned for this HW...
> *
> * This ISR has been designed for this particular hardware. Relaxed
> read
> * and write accessors are used for performance reasons due to
> interrupt
> * delivery guarantees. Do not copy this code blindly and expect
> * that to work.
> */
>
>
Sounds good.
Arnd
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