From patchwork Fri Sep 13 18:19:53 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Marussi X-Patchwork-Id: 11145081 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4B870912 for ; Fri, 13 Sep 2019 18:24:16 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 29D71206A5 for ; Fri, 13 Sep 2019 18:24:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="uUICvAeQ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 29D71206A5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=yC1rEYIfUBKGOxXkve+zcbmjz+PAGcfuQ/YX238WGeg=; b=uUICvAeQNxXAXY5BRwaxHKSn1T MOspfa3a3n+1rqidn7kaVQO8GLcuWTxT1TIFlpp2SVJGz75jbpVnJ9fsp+0JLrdbaDq/MKbpekFbD 0nBcSj30viWvC0nhF+tZ88PaKF9x1HR5/wstDK8MqPYzfd09RYefwHQJuErdZyiNxC4gANL3y9rZY IC7h+mHOMUrYyKR3FZMbL9xq7oGer3AviDGV/sWmpji13eNP16LBRP4hFUNbY9jAzAZf8S0xcB9HM sVY5u9TW7aEHIXAIifY4nHBGSooEdByJX38RNM+c55kL8iD0Rm6mdINKUCtuXlU9bGFxpSPQrNify GalWGTBA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1i8qEs-00081N-Pa; Fri, 13 Sep 2019 18:24:10 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1i8qC5-0005QS-HY for linux-arm-kernel@lists.infradead.org; Fri, 13 Sep 2019 18:21:18 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 455AC28; Fri, 13 Sep 2019 11:21:17 -0700 (PDT) Received: from e120937-lin.cambridge.arm.com (e120937-lin.cambridge.arm.com [10.1.197.50]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id CBF3B3F71F; Fri, 13 Sep 2019 11:21:14 -0700 (PDT) From: Cristian Marussi To: linux-kernel@vger.kernel.org Subject: [RFC PATCH v2 12/12] sparc64: smp: use generic SMP stop common code Date: Fri, 13 Sep 2019 19:19:53 +0100 Message-Id: <20190913181953.45748-13-cristian.marussi@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190913181953.45748-1-cristian.marussi@arm.com> References: <20190913181953.45748-1-cristian.marussi@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190913_112117_801070_DF20ED65 X-CRM114-Status: UNSURE ( 9.82 ) X-CRM114-Notice: Please train this message. X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, mark.rutland@arm.com, sparclinux@vger.kernel.org, dzickus@redhat.com, ehabkost@redhat.com, peterz@infradead.org, catalin.marinas@arm.com, x86@kernel.org, linux@armlinux.org.uk, davem@davemloft.net, hch@infradead.org, takahiro.akashi@linaro.org, mingo@redhat.com, james.morse@arm.com, hidehiro.kawai.ez@hitachi.com, tglx@linutronix.de, will@kernel.org, dave.martin@arm.com, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Make sparc64 use the generic SMP-stop logic provided by common code unified smp_send_stop() function. Signed-off-by: Cristian Marussi --- arch/sparc/Kconfig | 1 + arch/sparc/kernel/smp_64.c | 15 ++++++++------- 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 7926a2e11bdc..67d8bb741378 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -95,6 +95,7 @@ config SPARC64 select ARCH_HAS_PTE_SPECIAL select PCI_DOMAINS if PCI select ARCH_HAS_GIGANTIC_PAGE + select ARCH_USE_COMMON_SMP_STOP config ARCH_DEFCONFIG string diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index a8275fea4b70..759e5fd867c5 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -1537,7 +1537,12 @@ static void stop_this_cpu(void *dummy) prom_stopself(); } -void smp_send_stop(void) +void arch_smp_cpus_stop_complete(void) +{ + smp_call_function(stop_this_cpu, NULL, 0); +} + +void arch_smp_stop_call(cpumask_t *cpus, unsigned int __unused) { int cpu; @@ -1546,10 +1551,7 @@ void smp_send_stop(void) #ifdef CONFIG_SERIAL_SUNHV sunhv_migrate_hvcons_irq(this_cpu); #endif - for_each_online_cpu(cpu) { - if (cpu == this_cpu) - continue; - + for_each_cpu(cpu, cpus) { set_cpu_online(cpu, false); #ifdef CONFIG_SUN_LDOMS if (ldom_domaining_enabled) { @@ -1562,8 +1564,7 @@ void smp_send_stop(void) #endif prom_stopcpu_cpuid(cpu); } - } else - smp_call_function(stop_this_cpu, NULL, 0); + } } /**