From: sashiko-bot@kernel.org
To: "Lin Wang" <wanglin@open-hieco.net>
Cc: linux-hwmon@vger.kernel.org
Subject: Re: [PATCH v6 6/8] x86/amd_nb: Restrict the northbridge framework to AMD CPUs
Date: Mon, 21 Sep 2026 06:04:09 +0000 [thread overview]
Message-ID: <20260921060409.B05CE1F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260921055603.25112-7-wanglin@open-hieco.net>
> The AMD northbridge cache previously discovered Hygon F3 devices by PCI
> ID. It now derives the node count from CPU topology and locates node
> functions at fixed PCI slots. Hygon DF devices do not follow that
> layout, so the Hygon branch no longer builds a usable cache.
>
> amd64_edac and ATL no longer use this cache on Hygon. Restrict
> northbridge initialization and the early northbridge check to AMD CPUs.
> Keep amd_get_mmconfig_range() available on Hygon because it reads the
> MMCONFIG MSR without using the northbridge cache.
>
> Signed-off-by: Lin Wang <wanglin@open-hieco.net>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260921055603.25112-1-wanglin@open-hieco.net?part=6
next prev parent reply other threads:[~2026-09-21 6:04 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-21 5:55 [PATCH v6 0/8] x86/hygon: Add Family 0x18 DF node enumeration and SMN access Lin Wang
2026-09-21 5:55 ` [PATCH v6 1/8] x86/hygon: Add Family 0x18 DF node enumeration Lin Wang
2026-09-21 6:02 ` sashiko-bot
2026-09-30 0:43 ` Borislav Petkov
2026-09-30 1:46 ` Lin Wang
2026-09-21 5:55 ` [PATCH v6 2/8] x86/hygon: Map CPU NodeIds to DF nodes Lin Wang
2026-09-21 6:02 ` sashiko-bot
2026-09-30 3:00 ` Borislav Petkov
2026-09-30 7:03 ` Lin Wang
2026-09-21 5:55 ` [PATCH v6 3/8] EDAC/amd64: Stop matching Hygon CPUs Lin Wang
2026-09-21 6:01 ` sashiko-bot
2026-09-21 5:55 ` [PATCH v6 4/8] RAS/AMD/ATL: Match AMD CPUs only Lin Wang
2026-09-21 6:02 ` sashiko-bot
2026-09-21 5:56 ` [PATCH v6 5/8] hwmon: (k10temp) Stop matching Hygon devices Lin Wang
2026-09-21 6:01 ` sashiko-bot
2026-09-21 14:54 ` Guenter Roeck
2026-09-21 5:56 ` [PATCH v6 6/8] x86/amd_nb: Restrict the northbridge framework to AMD CPUs Lin Wang
2026-09-21 6:04 ` sashiko-bot [this message]
2026-09-21 5:56 ` [PATCH v6 7/8] x86/amd_node: Restrict SMN setup " Lin Wang
2026-09-21 6:04 ` sashiko-bot
2026-09-21 5:56 ` [PATCH v6 8/8] x86/hygon: Add Family 0x18 SMN access Lin Wang
2026-09-21 6:05 ` sashiko-bot
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