From patchwork Thu May 4 19:02:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 13231632 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 2E42CC7EE25 for ; Thu, 4 May 2023 19:05:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230413AbjEDTF5 (ORCPT ); Thu, 4 May 2023 15:05:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51390 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230434AbjEDTF2 (ORCPT ); Thu, 4 May 2023 15:05:28 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B11A8A5F; Thu, 4 May 2023 12:03:45 -0700 (PDT) Message-ID: <20230504185938.179661118@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1683226974; 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=dh/52GRhLbpp4gh50fAuvfQix7j7Ih1160L/CdLI8l0=; b=O6cG1HBehiX74K9JFp369TIKx6mKBR2TPreNtZ0JIxAQi+1KIShpZOLr9yn98NyJ2DVeV2 KoRI+hkYEu5smHES9pGvnLyoWtwb4Bp/4BfVhvbHAfxZcdiWB7o0B0Ira+4IzxwLMlhRJ+ sMHMr6Be0jbWVJhRKWMRzaormlwxyZ+o2EofkewXORpIgLbjVpvUxjCQcSQl+YfTMlHZ9T UE8rmtHne4Y5TmubM7NIWK98QCHj+0F+rqBtOZSFGM77VBpgrVetzsILoS9DByN2vrAczS 5+Uo3R/A6vnceg12D8eqIMTFGAGJV6sRpxtSZ3hp8//m2IPi36uIIWtNhU3PLg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1683226974; 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=dh/52GRhLbpp4gh50fAuvfQix7j7Ih1160L/CdLI8l0=; b=2Mr8xnCCJXQNYK40wYiyDitX1rtgKVSav9FlO5VPGJbI6wVmqI0M9y1M9rUGvQKL9tG1OS lphjzmGYwmWjK5CQ== 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 , 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 , "Michael Kelley (LINUX)" Subject: [patch V2 34/38] x86/cpu/amd; Invoke detect_extended_topology_early() on boot CPU References: <20230504185733.126511787@linutronix.de> MIME-Version: 1.0 Date: Thu, 4 May 2023 21:02:53 +0200 (CEST) Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org From: Thomas Gleixner 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; }