linux-kernel - Re: [PATCH] irqchip: gic-v3: Collection table support muti pages

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Message-ID: <86jzx9n4qg.wl-maz@kernel.org>
Date:   Mon, 15 May 2023 13:44:55 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     wangwudi <wangwudi@...ilicon.com>
Cc:     <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] irqchip: gic-v3: Collection table support muti pages

On Mon, 15 May 2023 13:10:04 +0100,
wangwudi <wangwudi@...ilicon.com> wrote:
> 
> Only one page is allocated to the collection table.
> Recalculate the page number of collection table based on the number of
> CPUs.

Please document *why* we should even consider this. Do you know of any
existing implementation that is so large (or need so much memory for
its collection) that it would result in overflowing the collection
table?

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.