From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
To: linux-pci@vger.kernel.org,
"marek.vasut@gmail.com" <marek.vasut@gmail.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
linux-renesas-soc@vger.kernel.org,
Bjorn Helgaas <bhelgaas@google.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Wolfram Sang <wsa@the-dreams.de>,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
Marek Vasut <marek.vasut+renesas@gmail.com>
Subject: Re: [PATCH V7] PCI: rcar: Add L1 link state fix into data abort hook
Date: Mon, 16 Aug 2021 14:57:04 +0100 [thread overview]
Message-ID: <162912206617.7498.10791199140703646138.b4-ty@arm.com> (raw)
In-Reply-To: <20210815181650.132579-1-marek.vasut@gmail.com>
On Sun, 15 Aug 2021 20:16:50 +0200, marek.vasut@gmail.com wrote:
> When the link is in L1, hardware should return it to L0
> automatically whenever a transaction targets a component on the
> other end of the link (PCIe r5.0, sec 5.2).
>
> The R-Car PCIe controller doesn't handle this transition correctly.
> If the link is not in L0, an MMIO transaction targeting a downstream
> device fails, and the controller reports an ARM imprecise external
> abort.
>
> [...]
Applied to pci/rcar, thanks!
[1/1] PCI: rcar: Add L1 link state fix into data abort hook
https://git.kernel.org/lpieralisi/pci/c/a115b1bd3a
Thanks,
Lorenzo
prev parent reply other threads:[~2021-08-16 14:00 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-15 18:16 [PATCH V7] PCI: rcar: Add L1 link state fix into data abort hook marek.vasut
2021-08-16 13:57 ` Lorenzo Pieralisi [this message]
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