Subject: Re: [PATCH v4 04/20] irqchip/gic-v4.1: Map the ITS SGIR register page

From: Zenghui Yu <[email-masked]>
Date: Thu, 20 Feb 2020 11:17:47 +0800

On 2020/2/14 22:57, Marc Zyngier wrote:
> One of the new features of GICv4.1 is to allow virtual SGIs to be
> directly signaled to a VPE. For that, the ITS has grown a new
> 64kB page containing only a single register that is used to
> signal a SGI to a given VPE.
> 
> Add a second mapping covering this new 64kB range, and take this
> opportunity to limit the original mapping to 64kB, which is enough
> to cover the span of the ITS registers.

Yes, no need to do ioremap for the translation register.

> 
> Signed-off-by: Marc Zyngier<[email-masked]>

Reviewed-by: Zenghui Yu <[email-masked]>

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