linux-kernel - Selecting MMU page size for an architecture

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Message-ID: <sq0965$aed$1@ciao.gmane.io>
Date:   Thu, 23 Dec 2021 01:34:45 +0300
From:   Sergey Organov <sorganov@...il.com>
To:     linux-kernel@...r.kernel.org
Subject: Selecting MMU page size for an architecture 

Hello,

We are building custom CPU and have an option to choose either 4K or 16K
MMU minimum page size that will then be fixed in the hardware. For
reasons unrelated to the Linux kernel we'd prefer 16K, but I have some
doubts.

What pros and cons for kernel and user-space operation 16K pages will
have over more usual 4K pages? Anything we should worry about?

Thanks,
-- Sergey Organov