From: Will Deacon <will@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>,
Clint Sbisa <csbisa@amazon.com>
Cc: kernel-team@android.com, Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <helgaas@kernel.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Jason Gunthorpe <jgg@nvidia.com>
Subject: Re: [PATCH v2] arm64: Enable PCI write-combine resources under sysfs
Date: Fri, 18 Sep 2020 17:17:15 +0100 [thread overview]
Message-ID: <160043431383.3781570.11856151668553199705.b4-ty@kernel.org> (raw)
In-Reply-To: <20200918033312.ddfpibgfylfjpex2@amazon.com>
On Fri, 18 Sep 2020 03:33:12 +0000, Clint Sbisa wrote:
> This change exposes write-combine mappings under sysfs for
> prefetchable PCI resources on arm64.
>
> Originally, the usage of "write combine" here was driven by the x86
> definition of write combine. This definition is specific to x86 and
> does not generalize to other architectures. However, the usage of WC
> has mutated to "write combine" semantics, which is implemented
> differently on each arch.
>
> [...]
Applied to arm64 (for-next/pci), thanks!
[1/1] arm64: Enable PCI write-combine resources under sysfs
https://git.kernel.org/arm64/c/5fd39dc22027
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
prev parent reply other threads:[~2020-09-18 16:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-18 3:33 Clint Sbisa
2020-09-18 9:21 ` Lorenzo Pieralisi
2020-09-18 11:07 ` Catalin Marinas
2020-09-18 11:56 ` Ard Biesheuvel
2020-09-18 16:17 ` Will Deacon [this message]
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