Re: [Xen-devel] [PATCH v3 13/16] xen/arm: Add support for GIC v3

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 04/17/2014 03:54 PM, Vijay Kilari wrote:
>> I would prefer to modify GIC v2 driver rather than forking too much the
>> VGIC code. The change in GIC v2 is not so difficult...
> 
>    Is it ok if we can get rid of usage fixmap in GICv2 driver to
> access GICD/GICH/GICC regions
> and use ioremap_nocache() similar to GICv3 driver?.

I'm in favor of this solution. There is nearly no overhead compare to
the FIXMAP solution.

You will have to use ioremap_nocache and corresponding read/write helper.

Regards,

-- 
Julien Grall

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