From patchwork Fri Apr 14 23:45:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 13212067 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02261C77B76 for ; Fri, 14 Apr 2023 23:48:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231164AbjDNXsc (ORCPT ); Fri, 14 Apr 2023 19:48:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55022 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230392AbjDNXsK (ORCPT ); Fri, 14 Apr 2023 19:48:10 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 61211A249; Fri, 14 Apr 2023 16:46:55 -0700 (PDT) Message-ID: <20230414232311.316352541@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1681515909; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=2PTnDdSuwes/9NjD8Pm7hXlACOxFTN9vJCNjWOfgGXM=; b=Jh6ZM0Us9GGh285BMnb5fEm77rslh++J6j/QuRkHBnu0IJ3u2WPmnGe/3gdgkhs+Itn6YC EYm2JHM+HCoiKXud+mnLR3pzE3sn62xS6OTtxoSRYTybybUo7HLhqrcnKqV1RwxPAi5wc5 OBp150tG8AHyoMw6+86zMyjFChURpnILiUkhTuUlpHCRtOIbCa3VMT62a8kcqkB8R+gKQ4 U9tfXpB5IVu1MhpvFCVN68arP6yea+vniJ2RVD3n3fNQwQKszlDZIcpnpbeZf4M7nBLa8W ZFeGomntJTFI5LAn96fL2tniH8jRiNy2rM7ZxO27HO46gpoe/qq365pH/j/4pA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1681515909; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=2PTnDdSuwes/9NjD8Pm7hXlACOxFTN9vJCNjWOfgGXM=; b=JDEmTRQRnlWI2RxVIaPHzb6Y3x+BSeHE+/1j/fasD5aAeXT8ZfKeZ96xHuB6wXG5qxyGWZ eqmeypWBVFC7DyAA== From: Thomas Gleixner To: LKML Cc: x86@kernel.org, David Woodhouse , Andrew Cooper , Brian Gerst , "Arjan van de Veen" , Paolo Bonzini , Paul McKenney , Tom Lendacky , Sean Christopherson , Oleksandr Natalenko , Paul Menzel , "Guilherme G. Piccoli" , Piotr Gorski , David Woodhouse , Usama Arif , Juergen Gross , Boris Ostrovsky , xen-devel@lists.xenproject.org, Russell King , Arnd Bergmann , linux-arm-kernel@lists.infradead.org, Catalin Marinas , Will Deacon , Guo Ren , linux-csky@vger.kernel.org, Thomas Bogendoerfer , linux-mips@vger.kernel.org, "James E.J. Bottomley" , Helge Deller , linux-parisc@vger.kernel.org, Paul Walmsley , Palmer Dabbelt , linux-riscv@lists.infradead.org, Mark Rutland , Sabin Rapan Subject: [patch 34/37] x86/cpu/amd; Invoke detect_extended_topology_early() on boot CPU References: <20230414225551.858160935@linutronix.de> MIME-Version: 1.0 Date: Sat, 15 Apr 2023 01:45:08 +0200 (CEST) Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org The early detection stores the extended topology leaf number which is required for parallel hotplug. Signed-off-by: Thomas Gleixner --- arch/x86/kernel/cpu/amd.c | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -692,6 +692,8 @@ static void early_init_amd(struct cpuinf } } + detect_extended_topology_early(c); + if (cpu_has(c, X86_FEATURE_TOPOEXT)) smp_num_siblings = ((cpuid_ebx(0x8000001e) >> 8) & 0xff) + 1; }