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Date: Sun, 12 Jul 2026 12:33:36 +0200
From: Lukas Wunner <lukas@wunner.de>
To: Rosen Penev <rosenp@gmail.com>
Cc: linux-pci@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
	Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
	Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@kernel.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	"open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/8] x86/pci: move Intel chipset quirks to
 arch/x86/pci/fixup.c
Message-ID: <alNtgEIG1b-bdyFF@wunner.de>
References: <20260707221800.920270-1-rosenp@gmail.com>
 <20260707221800.920270-3-rosenp@gmail.com>
 <alNp9GFvMDN7yDQ3@wunner.de>
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In-Reply-To: <alNp9GFvMDN7yDQ3@wunner.de>

On Sun, Jul 12, 2026 at 12:18:28PM +0200, Lukas Wunner wrote:
> However, I vaguely remember that some Intel chipsets of that day were
> paired with DEC Alpha.  Triton maybe?

Okay it was AMD Irongate (751/761) which was compatible with both
Athlon and Alpha 21264 because they shared the EV6 bus protocol:

https://en.wikipedia.org/wiki/Socket_A#Chipsets

But Irongate was paired with a VIA VT82C686B southbridge according
to Wikipedia, and in patch [3/8] of this series you're moving
quirk_vt82c686_acpi() to arch/x86.  That doesn't look right.

Moral of the story is, I'd be very cautious about assumptions
that these chipsets were all x86-only.

Thanks,

Lukas