linux-kernel - Re: [PATCH] [PATCH] ARM64: Setup DMA32 zone size by bootargs

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Message-ID: <7AD19C4D-CB80-48C5-8B12-62D52BFDBE63@infradead.org>
Date:   Tue, 15 Sep 2020 18:48:31 +0100
From:   David Woodhouse <dwmw2@...radead.org>
To:     linux-mediatek@...ts.infradead.org,
        Phil Chang <phil.chang@...iatek.com>,
        linux-arm-kernel@...ts.infradead.org
CC:     Mark Rutland <mark.rutland@....com>,
        Alix Wu <alix.wu@...iatek.com>, linux-doc@...r.kernel.org,
        Anshuman Khandual <anshuman.khandual@....com>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        YJ Chiang <yj.chiang@...iatek.com>,
        Jonathan Corbet <corbet@....net>, linux-kernel@...r.kernel.org,
        Will Deacon <will@...nel.org>, Mike Rapoport <rppt@...nel.org>
Subject: Re: [PATCH] [PATCH] ARM64: Setup DMA32 zone size by bootargs



On 15 September 2020 16:08:55 BST, Phil Chang <phil.chang@...iatek.com> wrote:
>Allowing the DMA32 zone be configurable in ARM64 but at most 4Gb.

I don't think 4,000,000 bits is a particularly sensible limit.

Perhaps you meant bytes, and perhaps you meant 4*1024*1024? That would be "4 GiB".

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