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

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Message-ID: <20230616093116.GA10423@willie-the-truck>
Date:   Fri, 16 Jun 2023 10:31:17 +0100
From:   Will Deacon <will@...nel.org>
To:     Bibo Mao <maobibo@...ngson.cn>
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

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?

Will