From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lj1-f169.google.com (mail-lj1-f169.google.com [209.85.208.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 80B9B30748E for ; Thu, 23 Oct 2025 17:06:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.169 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761239214; cv=none; b=er3hY5PVIhJdECf5rUqIMqopxZHc9vKz5hUCoB/sy/vDVHIXDiR5KAAK0a+CiLfVovDAYqkV81/GcAT34JAbwdcdUipdcaz9FkhamjeQeJwS7ZtfLagotqsDDANG3DZQUeoWVGLVe47V5YPNnYjrn/tRD/JnXwqRXm7+zcFASvw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761239214; c=relaxed/simple; bh=PECSIW3krhGuJb11E3crJdvrNsJtWevjN0kDoXCOJas=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=lIstXRwczrbbZX+PB9tIw6OBXLBIgghIMFJi2gq0dCqDeGXZzfV4Y6HRvDaHqAXRFvKE3s45ln9afZAy2tbpX1JrIfYrtjXJD5ZRmUcyY/DGvpCpogDHZVK7mGdSuJuN+L+LIxESToBfEwCqQBvzfZOhQjYTN4ctsfwf5E+Twl0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=kScwt8Sb; arc=none smtp.client-ip=209.85.208.169 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="kScwt8Sb" Received: by mail-lj1-f169.google.com with SMTP id 38308e7fff4ca-375eff817a3so12531651fa.1 for ; Thu, 23 Oct 2025 10:06:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1761239211; x=1761844011; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=ay+42qhIEPdXa+n4WvORTn6I3PLfhdqjaHkfndYAfck=; b=kScwt8SbKBHth+fbMFKTAwrZmBaPQi32DE8oVyRXdmtndtBygPbSVKIVG4BGdWpzom C0jlAMxfYNiBr283VsYgFqPWUzfp/0pE8goq33CLTHWLWMFbvsMTxjmVI7LdxupjM6XB dbBDWm16aDJj9S92TftoFATwLNSANvJjcx/WjFoHu1zo9FObY63vd6+PVeWiltKa6WK8 z+ZFHd83aSE3UGycQwhBGl9VGYI/GHW0pQh07Na7rV9FwlbqdwWaGwc8wFFtegMC4Cle rIkiiDtxqWfecqv4luWCfFKJGCWajd6qtA4NdfFl331fjQtsXTGlsN8FnslemrBk/Mmm A0xQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761239211; x=1761844011; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ay+42qhIEPdXa+n4WvORTn6I3PLfhdqjaHkfndYAfck=; b=dj3RwQH8HK+mDrmlBPfNJ4iDt+WmrGu/PpPS96QqMxfsVXRiKssb6VlhU8Nvu0l/pp TGSmW6d1Tk/zvJLjwq9TCURDMIgWOK4/daIeFpW9TLKA/1QowEcBHd+m3M75Q9TE+NJy 7umCqwrkG7X+QfLNWvhliBtp2YTl32QMVfDEyibjl7F4emSCBFgDQ8VQqSlBn0TDOzIr 6DmToMmCv8GGteE4n+jVjNcEVMuzuB3FGUBFBph+Jq84F7kspTFRfswLcT7vuEKJJE85 OYDs1mDFZBGdAdJt9ya6292OY7ot/jAibLJdqurhtLp/rs91C6tNXyidI8jHXige1Crc h88w== X-Forwarded-Encrypted: i=1; AJvYcCW0msasc8dGPZ3I0u0rcZlH+XIprugE5cy90byAs3tKQrW/tl/SWtUKXqLrHi9q+fqmmjF+hKBw5M9wLQ==@vger.kernel.org X-Gm-Message-State: AOJu0YzmxjysvZmHya/ug+5KLWXRGki5TVAOrsGeJCBjYj+u7XGa8X0R yQhFMyBJJqcLd6ppiw5BD/Lwy14s6CMglRKlgR33GpS7ziotvNLsz+5F X-Gm-Gg: ASbGncvSla1xwAak3A6TZC0y1Nl76S/gASrIhNCWdiHSpYsG3FhzXzGe3l1Wd09uXFP ToY5uQG94LvUTL4tp59ZYGJbLpri2MNjrTIex64VdDKivnI3R6G1Ad4x2ZzXllMacQdYcXEA1M7 2fmb1J4AOCNXR6jxT+m1rcz2fAtVDl7uD8akG+kVo47eLC1xN34hiC7uE8Pkx+WGcv6LO44w3ch igVvclE+pU5x62r8owlnDxT78Mo5RGgwLAgHnf0NzN1Y/NuSwIfjm10mlXIt1crHX0b+ncqCjG6 Kw9WIKQwpco5VAdkq3WEGKt/imODXupfkPtYFcOKc7Rf3Qs+GkkYPz8RVSendCBXYCqwWuaes1P q3IXnvrVQ/RvZ/ZFXw4q9zy8FMJgxAHintxDyzA0t5ojxCfcpa91gnkO4D+WAI82t58l38f8QbR nix3oZSjFABeLo5HmOMOihCwtN1FY= X-Google-Smtp-Source: AGHT+IFCU+4vgavCbFNLb+Mo4lZ6B2eZuRjKspgl3MEMe+pg4okffP3jDGlOShhYfpkKT3xoeWgSbw== X-Received: by 2002:a05:651c:199e:b0:36c:ebb0:821c with SMTP id 38308e7fff4ca-37797831bfbmr72598861fa.7.1761239210349; Thu, 23 Oct 2025 10:06:50 -0700 (PDT) Received: from foxbook (bey128.neoplus.adsl.tpnet.pl. [83.28.36.128]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-378d67dc50csm5770731fa.41.2025.10.23.10.06.47 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Thu, 23 Oct 2025 10:06:50 -0700 (PDT) Date: Thu, 23 Oct 2025 19:06:44 +0200 From: Michal Pecio To: Mario Limonciello Cc: Yazen Ghannam , Shyam-sundar.S-k@amd.com, bhelgaas@google.com, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, jdelvare@suse.com, linux-edac@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux@roeck-us.net, naveenkrishna.chatradhi@amd.com, platform-driver-x86@vger.kernel.org, suma.hegde@amd.com, tony.luck@intel.com, x86@kernel.org Subject: Re: [PATCH v3 06/12] x86/amd_nb: Use topology info to get AMD node count Message-ID: <20251023190644.114bf9f8.michal.pecio@gmail.com> In-Reply-To: <5764e711-4c3f-4476-9ecb-1f7643e3b60d@amd.com> References: <20250107222847.3300430-7-yazen.ghannam@amd.com> <20251022011610.60d0ba6e.michal.pecio@gmail.com> <20251022133901.GB7243@yaz-khff2.amd.com> <20251022173831.671843f4.michal.pecio@gmail.com> <20251022160904.GA174761@yaz-khff2.amd.com> <20251022181856.0e3cfc92.michal.pecio@gmail.com> <20251023135935.GA619807@yaz-khff2.amd.com> <20251023170107.0cc70bad.michal.pecio@gmail.com> <20251023160906.GA730672@yaz-khff2.amd.com> <5764e711-4c3f-4476-9ecb-1f7643e3b60d@amd.com> Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 23 Oct 2025 11:22:29 -0500, Mario Limonciello wrote: > As this is an ancient BIOS this reminds me of some related commits: > > aa06e20f1be6 ("x86/ACPI: Don't add CPUs that are not online capable") > a74fabfbd1b70 ("x86/ACPI/boot: Use FADT version to check support for > online capable") > > Does reverting that second one help? Not sure if it's worth trying? My BIOS predates the ACPI 6.3 spec by several years and (if I understand correctly) MADT revision is 1. It seems Yazen guessed right: they list 6 APICs and mark absent ones as not enabled. But I don't think we can assume any ACPI 6.3 flags to be valid here. I wonder if some quick check could recognize those consumer CPUs and simply ignore hotplug there? AFAIK it was never a thing on AM3. Michal