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[2001:770:15f::2]) by mx.google.com with ESMTPS id nl4si12863963bkb.243.2014.01.26.22.12.16 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 26 Jan 2014 22:12:16 -0800 (PST) Received-SPF: pass (google.com: domain of linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org designates 2001:770:15f::2 as permitted sender) client-ip=2001:770:15f::2; Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1W7fOl-0002hF-B0; Mon, 27 Jan 2014 06:10:19 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1W7fOb-0003gu-GF; Mon, 27 Jan 2014 06:10:09 +0000 Received: from relais.videotron.ca ([24.201.245.36]) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1W7fO3-0003YP-Td for linux-arm-kernel@lists.infradead.org; Mon, 27 Jan 2014 06:09:37 +0000 Received: from yoda.home ([66.130.143.177]) by VL-VM-MR006.ip.videotron.ca (Oracle Communications Messaging Exchange Server 7u4-22.01 64bit (built Apr 21 2011)) with ESMTP id <0N0100HJMQFBSKO0@VL-VM-MR006.ip.videotron.ca> for linux-arm-kernel@lists.infradead.org; Mon, 27 Jan 2014 01:09:11 -0500 (EST) Received: from xanadu.home (xanadu.home [192.168.2.2]) by yoda.home (Postfix) with ESMTP id 2EDB22DA0683; Mon, 27 Jan 2014 01:09:11 -0500 (EST) From: Nicolas Pitre To: Russell King , Catalin Marinas , Benjamin Herrenschmidt , Paul Mundt , Thomas Gleixner , Ingo Molnar , Peter Zijlstra , "Rafael J. Wysocki" , Daniel Lezcano Subject: [PATCH 2/9] ARM64: get rid of arch_cpu_idle_prepare() Date: Mon, 27 Jan 2014 01:08:17 -0500 Message-id: <1390802904-28399-3-git-send-email-nicolas.pitre@linaro.org> X-Mailer: git-send-email 1.8.4.108.g55ea5f6 In-reply-to: <1390802904-28399-1-git-send-email-nicolas.pitre@linaro.org> References: <1390802904-28399-1-git-send-email-nicolas.pitre@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140127_010936_011653_70E94082 X-CRM114-Status: GOOD ( 12.75 ) X-Spam-Score: -1.2 (-) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-1.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [24.201.245.36 listed in list.dnswl.org] 0.7 SPF_SOFTFAIL SPF: sender does not match SPF record (softfail) -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: linaro-kernel@lists.linaro.org, linux-pm@vger.kernel.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: , List-Help: , List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: nicolas.pitre@linaro.org X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 209.85.128.172 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 ARM and ARM64 are the only two architectures implementing arch_cpu_idle_prepare() simply to call local_fiq_enable(). We have secondary_start_kernel() already calling local_fiq_enable() and this is done a second time in arch_cpu_idle_prepare() in that case. And enabling FIQs has nothing to do with idling the CPU to start with. So let's introduce init_fiq_boot_cpu() to take care of FIQs on the boot CPU and remove arch_cpu_idle_prepare(). This is now done a bit earlier at late_initcall time but this shouldn't make a difference in practice given that FIQs are not currently used on ARM64. Signed-off-by: Nicolas Pitre --- arch/arm64/kernel/process.c | 5 ----- arch/arm64/kernel/setup.c | 7 +++++++ 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index de17c89985..f6c733da67 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -84,11 +84,6 @@ EXPORT_SYMBOL_GPL(pm_power_off); void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd); EXPORT_SYMBOL_GPL(arm_pm_restart); -void arch_cpu_idle_prepare(void) -{ - local_fiq_enable(); -} - /* * This is our default idle handler. */ diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index bd9bbd0e44..259557983a 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -255,6 +255,13 @@ static int __init arm64_device_init(void) } arch_initcall(arm64_device_init); +static int __init init_fiq_boot_cpu(void) +{ + local_fiq_enable(); + return 0; +} +late_initcall(init_fiq_boot_cpu); + static DEFINE_PER_CPU(struct cpu, cpu_data); static int __init topology_init(void)