From: Xi Ruoyao <xry111@xry111.site>
To: Manivannan Sadhasivam <mani@kernel.org>
Cc: liziyao@uniontech.com,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczy��ski" <kwilczynski@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
niecheng1@uniontech.com, zhanjun@uniontech.com,
guanwentao@uniontech.com, "Kexy Biscuit" <kexybiscuit@aosc.io>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
loongarch@lists.linux.dev, kernel@uniontech.com,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
"Lain Fearyncess Yang" <fsf@live.com>,
"Ayden Meng" <aydenmeng@yeah.net>,
"Mingcong Bai" <jeffbai@aosc.io>,
stable@vger.kernel.org, "Huacai Chen" <chenhuacai@kernel.org>
Subject: Re: [PATCH v7] PCI: loongson: Override PCIe bridge supported speeds for Loongson-3C6000 series
Date: Thu, 26 Feb 2026 15:36:28 +0800 [thread overview]
Message-ID: <7a3e5d1d9cc7cca9502bab960d221eebfce69f61.camel@xry111.site> (raw)
In-Reply-To: <mkvt7qwpuy2rnhnpamjca3tsoipfdzjweymfuxwfzadelxyqgs@bw755m4cpj5g>
On Thu, 2026-02-26 at 13:01 +0530, Manivannan Sadhasivam wrote:
> On Thu, Feb 26, 2026 at 03:09:34PM +0800, Xi Ruoyao wrote:
> > On Thu, 2026-02-26 at 12:01 +0530, Manivannan Sadhasivam wrote:
> > > > Cc: stable@vger.kernel.org
> > >
> > > Since this is a bug fix which needs to be backported, what is the commit SHA for
> > > the Fixes tag? The one which added Loongson-3C6000 support to this driver.
> >
> > The PCI controller driver didn't have any change specifically for
> > Loongson-3C6000 before this one, but the kernel will only boot on
> > Loongson-3C6000 if the AVECINTC support (commit ae16f05c928a, i.e. Linux
> > 6.12+) is available.
> >
>
> So can you share the commit that introduced the Loongson-3C6000 platform?
> ae16f05c928a just added the AVEC support. Though this might be necessary for
> booting, this is not the actual commit that introduced the buggy platform
> support.
The 3C6000 PCIe controller is a rather "standard ACPI" device (if we
don't consider the quirks needed) so it should be already supported
since cd89edda4002 ("PCI: loongson: Add ACPI init support"), despite the
commit even predates the taping of 3C6000...
--
Xi Ruoyao <xry111@xry111.site>
prev parent reply other threads:[~2026-02-26 7:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-21 8:22 Ziyao Li via B4 Relay
2026-02-26 6:31 ` Manivannan Sadhasivam
2026-02-26 7:09 ` Xi Ruoyao
2026-02-26 7:31 ` Manivannan Sadhasivam
2026-02-26 7:36 ` Xi Ruoyao [this message]
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