From: sashiko-bot@kernel.org
To: "Lin Wang" <wanglin@open-hieco.net>
Cc: linux-hwmon@vger.kernel.org
Subject: Re: [PATCH v5 4/8] RAS/AMD/ATL: Match AMD CPUs only
Date: Thu, 10 Sep 2026 08:34:03 +0000 [thread overview]
Message-ID: <20260910083403.A36491F00893@smtp.kernel.org> (raw)
In-Reply-To: <20260910082734.3771675-5-wanglin@open-hieco.net>
> The ATL CPU table matches Hygon through X86_FEATURE_SMCA and
> X86_FEATURE_ZEN, but the library obtains its node count and F4 devices
> from the AMD northbridge cache. That cache maps dense node indices to
> fixed PCI slots. Hygon PCI slots do not encode node identity, and CPU
> NodeIds are sparse across sockets. The cache therefore cannot represent
> the Hygon topology or provide ATL with a valid node-to-F4 mapping.
>
> A failed fixed-slot F3 lookup leaves the cache empty, so amd_atl_init()
> exits at its amd_nb_num() check.
>
> Limit both feature matches to AMD. Hygon address translation requires
> the Hygon node interfaces and will be added separately.
>
> 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/20260910082734.3771675-1-wanglin@open-hieco.net?part=4
next prev parent reply other threads:[~2026-09-10 8:34 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-10 8:27 [PATCH v5 0/8] x86/hygon: Add Family 0x18 DF node enumeration and SMN access Lin Wang
2026-09-10 8:27 ` [PATCH v5 1/8] x86/hygon: Add Family 0x18 DF node enumeration Lin Wang
2026-09-10 8:32 ` sashiko-bot
2026-09-10 8:27 ` [PATCH v5 2/8] x86/hygon: Map CPU NodeIds to DF nodes Lin Wang
2026-09-10 8:32 ` sashiko-bot
2026-09-10 8:27 ` [PATCH v5 3/8] EDAC/amd64: Stop matching Hygon CPUs Lin Wang
2026-09-10 8:33 ` sashiko-bot
2026-09-10 8:27 ` [PATCH v5 4/8] RAS/AMD/ATL: Match AMD CPUs only Lin Wang
2026-09-10 8:34 ` sashiko-bot [this message]
2026-09-10 8:27 ` [PATCH v5 5/8] hwmon: (k10temp) Stop matching Hygon devices Lin Wang
2026-09-10 8:36 ` sashiko-bot
2026-09-11 0:52 ` Guenter Roeck
2026-09-11 1:10 ` Lin Wang
2026-09-10 8:27 ` [PATCH v5 6/8] x86/amd_nb: Restrict the northbridge framework to AMD CPUs Lin Wang
2026-09-10 8:37 ` sashiko-bot
2026-09-10 8:27 ` [PATCH v5 7/8] x86/amd_node: Restrict SMN setup " Lin Wang
2026-09-10 8:43 ` sashiko-bot
2026-09-10 8:27 ` [PATCH v5 8/8] x86/hygon: Add Family 0x18 SMN access Lin Wang
2026-09-10 8:38 ` sashiko-bot
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