Message ID | 20230504185937.584277566@linutronix.de (mailing list archive) |
---|---|
State | Superseded |
Headers | show
Return-Path: <xen-devel-bounces@lists.xenproject.org> X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A572BC7EE22 for <xen-devel@archiver.kernel.org>; Thu, 4 May 2023 19:10:29 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.529986.825184 (Exim 4.92) (envelope-from <xen-devel-bounces@lists.xenproject.org>) id 1pueLC-0005ZB-TJ; Thu, 04 May 2023 19:10:10 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 529986.825184; Thu, 04 May 2023 19:10:10 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from <xen-devel-bounces@lists.xenproject.org>) id 1pueLC-0005VT-BD; Thu, 04 May 2023 19:10:10 +0000 Received: by outflank-mailman (input) for mailman id 529986; Thu, 04 May 2023 19:10:08 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from <SRS0=srgM=AZ=linutronix.de=tglx@srs-se1.protection.inumbo.net>) id 1pueDv-00042k-Hl for xen-devel@lists.xenproject.org; Thu, 04 May 2023 19:02:39 +0000 Received: from galois.linutronix.de (galois.linutronix.de [193.142.43.55]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 3b9b06d7-eaae-11ed-8611-37d641c3527e; Thu, 04 May 2023 21:02:36 +0200 (CEST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion <xen-devel.lists.xenproject.org> List-Unsubscribe: <https://lists.xenproject.org/mailman/options/xen-devel>, <mailto:xen-devel-request@lists.xenproject.org?subject=unsubscribe> List-Post: <mailto:xen-devel@lists.xenproject.org> List-Help: <mailto:xen-devel-request@lists.xenproject.org?subject=help> List-Subscribe: <https://lists.xenproject.org/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xenproject.org?subject=subscribe> Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" <xen-devel-bounces@lists.xenproject.org> X-Inumbo-ID: 3b9b06d7-eaae-11ed-8611-37d641c3527e Message-ID: <20230504185937.584277566@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1683226956; 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=wTNocxrIkrZERW1CgHrOxDfBd1NuTsgJS4AJ8mYPyyQ=; b=Mi46V8eHgoltNQxPJmnbu9i1N0WqNbjlBS5gXzUQdYuzDGSlRAwFIn42Fl4qTDQ9tpMOpi 9pMD9eqFIhnqecwmKQOcPdssVAfxr98Ufnj8kPfEnna6Jg1FJPiFDXjB5qyYPeKOEBzagH d9bGKI26ZnIO1dmzo62pzKDwF621ZdxsTsNqH8faar1/6RQwLMfz9EzVFpDrERESz08UzT RKiX6TWVgbEvDpDMLz5ptMwZldZAxWrvz613h9Whj+rnlmmRseJTa9scp2XVHyZRgXYYx9 W9B8x3jWUGKujnEYbsdrx7KzjQ+swT2YMyT9UZUBAmo9KzwEdkHLM2GZWs0XOQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1683226956; 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=wTNocxrIkrZERW1CgHrOxDfBd1NuTsgJS4AJ8mYPyyQ=; b=4wN87waBqOWq8wTSM62nHwIaB3nHKF5Odvy83jhqjVG4mxeKOSh6qxwJk2zaru4HlpMduu ieIS3XjNdw5x/MBw== From: Thomas Gleixner <tglx@linutronix.de> To: LKML <linux-kernel@vger.kernel.org> Cc: x86@kernel.org, David Woodhouse <dwmw2@infradead.org>, Andrew Cooper <andrew.cooper3@citrix.com>, Brian Gerst <brgerst@gmail.com>, Arjan van de Veen <arjan@linux.intel.com>, Paolo Bonzini <pbonzini@redhat.com>, Paul McKenney <paulmck@kernel.org>, Tom Lendacky <thomas.lendacky@amd.com>, Sean Christopherson <seanjc@google.com>, Oleksandr Natalenko <oleksandr@natalenko.name>, Paul Menzel <pmenzel@molgen.mpg.de>, "Guilherme G. Piccoli" <gpiccoli@igalia.com>, Piotr Gorski <lucjan.lucjanov@gmail.com>, Usama Arif <usama.arif@bytedance.com>, Juergen Gross <jgross@suse.com>, Boris Ostrovsky <boris.ostrovsky@oracle.com>, xen-devel@lists.xenproject.org, Russell King <linux@armlinux.org.uk>, Arnd Bergmann <arnd@arndb.de>, linux-arm-kernel@lists.infradead.org, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Guo Ren <guoren@kernel.org>, linux-csky@vger.kernel.org, Thomas Bogendoerfer <tsbogend@alpha.franken.de>, linux-mips@vger.kernel.org, "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>, Helge Deller <deller@gmx.de>, linux-parisc@vger.kernel.org, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, linux-riscv@lists.infradead.org, Mark Rutland <mark.rutland@arm.com>, Sabin Rapan <sabrapan@amazon.com>, "Michael Kelley (LINUX)" <mikelley@microsoft.com> Subject: [patch V2 23/38] csky/smp: Switch to hotplug core state synchronization References: <20230504185733.126511787@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Date: Thu, 4 May 2023 21:02:35 +0200 (CEST) |
Series |
cpu/hotplug, x86: Reworked parallel CPU bringup
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expand
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--- a/arch/csky/Kconfig +++ b/arch/csky/Kconfig @@ -96,6 +96,7 @@ config CSKY select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_STACKPROTECTOR select HAVE_SYSCALL_TRACEPOINTS + select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU select MAY_HAVE_SPARSE_IRQ select MODULES_USE_ELF_RELA if MODULES select OF --- a/arch/csky/include/asm/smp.h +++ b/arch/csky/include/asm/smp.h @@ -23,7 +23,7 @@ void __init set_send_ipi(void (*func)(co int __cpu_disable(void); -void __cpu_die(unsigned int cpu); +static inline void __cpu_die(unsigned int cpu) { } #endif /* CONFIG_SMP */ --- a/arch/csky/kernel/smp.c +++ b/arch/csky/kernel/smp.c @@ -291,12 +291,8 @@ int __cpu_disable(void) return 0; } -void __cpu_die(unsigned int cpu) +void arch_cpuhp_cleanup_dead_cpu(unsigned int cpu) { - if (!cpu_wait_death(cpu, 5)) { - pr_crit("CPU%u: shutdown failed\n", cpu); - return; - } pr_notice("CPU%u: shutdown\n", cpu); } @@ -304,7 +300,7 @@ void __noreturn arch_cpu_idle_dead(void) { idle_task_exit(); - cpu_report_death(); + cpuhp_ap_report_dead(); while (!secondary_stack) arch_cpu_idle();