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From: Yong Wu <yong.wu@mediatek.com>
To: <yf.wang@mediatek.com>
Cc: <wsd_upstream@mediatek.com>, Libo Kang <Libo.Kang@mediatek.com>,
	"Matthias Brugger" <matthias.bgg@gmail.com>,
	"moderated list:ARM/Mediatek SoC support"
	<linux-arm-kernel@lists.infradead.org>,
	"moderated list:ARM/Mediatek SoC support"
	<linux-mediatek@lists.infradead.org>
Subject: Re: [PATCH v3 0/2] MediaTek TTBR up to 35bit support
Date: Sat, 14 May 2022 10:09:27 +0800	[thread overview]
Message-ID: <65a0a606e5a53a4ca8dddbe59388c78280d60dd1.camel@mediatek.com> (raw)
In-Reply-To: <20220512144557.18025-1-yf.wang@mediatek.com>

On Thu, 2022-05-12 at 22:45 +0800, yf.wang@mediatek.com wrote:
> This patchset adds MediaTek TTBR up to 35bit support.
> 
> 
> Changes in v3:
> - Add version changes description, there is No new code change in V3.
> 
> Changes in v2:
> - Update patch and commit message
>   - Add Level 1 pgtable PA up to 35bit.

Why add this for lvl1 pgtable? Did you get real problem?

lvl2 pgtable is allocated/freed dynamically, it may be allocated failed
in ZONE_DMA32 when burning test. But the lvl1 pgtable only is allocated
once after bootup. I think this is no need for lvl1 pgtable.

>   - This is new feature, remove stable@vger.kernel.org
>   - Update commit message.
> 
> Ning Li (2):
>   iommu/io-pgtable-arm-v7s: Add a quirk to allow pgtable PA up to
> 35bit
>   iomm/mediatek: Allow page table PA up to 35bit
> 
>  drivers/iommu/io-pgtable-arm-v7s.c | 56 ++++++++++++++++++++++----
> ----
>  drivers/iommu/mtk_iommu.c          | 29 +++++++++++++---
>  include/linux/io-pgtable.h         | 15 +++++---
>  3 files changed, 77 insertions(+), 23 deletions(-)
> 
> 
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  parent reply	other threads:[~2022-05-14  2:11 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-12 14:45 [PATCH v3 0/2] MediaTek TTBR up to 35bit support yf.wang
2022-05-12 14:45 ` [PATCH v3 1/2] iommu/io-pgtable-arm-v7s: Add a quirk to allow pgtable PA up to 35bit yf.wang
2022-05-13  2:18   ` kernel test robot
2022-05-13  2:43   ` kernel test robot
2022-05-12 14:45 ` [PATCH v3 2/2] iomm/mediatek: Allow page table " yf.wang
2022-05-14  2:09 ` Yong Wu [this message]
2022-05-16 14:12   ` [PATCH v3 0/2] MediaTek TTBR up to 35bit support yf.wang

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