Re: MSI to memory?

[Richard B. Johnson]

On Wed, 7 Jul 2004, Davide Rossetti wrote:

> Rajesh Shah wrote:
>
> > What type of usage model did you have in mind to have the
> >
> >device write to memory instead of using MSI for interrupts?
> >
> >
> for instance for a fast wake-up trick. the driver loops on a memory
> location until the MSI write access changes the memory content...

Who (another cpu??) writes to memory while your CPU is wasting its
time looping? Maybe MSI stands for Major Service Interruption?

Cheers,
Dick Johnson
Penguin : Linux version 2.4.26 on an i686 machine (5570.56 BogoMips).
            Note 96.31% of all statistics are fiction.


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