linux-kernel - Re: [PATCH v4] PCI: Align pci memory space base address with page size

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Date:   Fri, 16 Jun 2023 18:59:02 +0800
From:   "bibo, mao" <bibo.mao@...il.com>
To:     Will Deacon <will@...nel.org>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, Huacai Chen <chenhuacai@...nel.org>,
        loongarch@...ts.linux.dev, loongson-kernel@...ts.loongnix.cn
Subject: Re: [PATCH v4] PCI: Align pci memory space base address with page
 size



在 2023/6/16 17:31, Will Deacon 写道:
> On Fri, Jun 09, 2023 at 10:20:47AM +0800, Bibo Mao wrote:
>> Some PCI devices have only 4K memory space size, it is normal in general
>> machines and aligned with page size. However some architectures which
>> support different page size, default page size on LoongArch is 16K, and
>> ARM64 supports page size varying from 4K to 64K.
> 
> Shouldn't we also select this new Kconfig option on arm64 then?
OK, will add this option on arm64 also in next version.

Regards
Bibo, Mao

> 
> Will