linux-kernel - Re: [PATCH v12 2/2] iommu/mediatek: Allow page table PA up to 35bit

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Message-ID: <25f13cd960f786a1f39b9675c82ea37e1a16b5c3.camel@mediatek.com>
Date:   Tue, 5 Jul 2022 09:38:37 +0800
From:   Yong Wu <yong.wu@...iatek.com>
To:     <yf.wang@...iatek.com>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Joerg Roedel <joro@...tes.org>,
        Miles Chen <miles.chen@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     <wsd_upstream@...iatek.com>, Libo Kang <Libo.Kang@...iatek.com>,
        Ning Li <ning.li@...iatek.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <iommu@...ts.linux-foundation.org>, <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH v12 2/2] iommu/mediatek: Allow page table PA up to 35bit

On Thu, 2022-06-30 at 17:29 +0800, yf.wang@...iatek.com wrote:
> From: Yunfei Wang <yf.wang@...iatek.com>
> 
> Single memory zone feature will remove ZONE_DMA32 and ZONE_DMA. So
> add
> the quirk IO_PGTABLE_QUIRK_ARM_MTK_TTBR_EXT to let level 1 and level
> 2
> pgtable support at most 35bit PA.
> 
> Signed-off-by: Ning Li <ning.li@...iatek.com>
> Signed-off-by: Yunfei Wang <yf.wang@...iatek.com>

Reviewed-by: Yong Wu <yong.wu@...iatek.com>