From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Andrzej Siewior Subject: Re: [PATCHv2 3/3] arch/arm64: Enable PREEMPT_RT_FULL Date: Thu, 14 May 2015 17:57:23 +0200 Message-ID: <20150514155723.GD13442@linutronix.de> References: <1430167990-12333-1-git-send-email-anders.roxell@linaro.org> <1430167990-12333-4-git-send-email-anders.roxell@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: ayyappa.ch.linux@gmail.com, linux-rt-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kevin.hilman@linaro.org To: Anders Roxell Return-path: Received: from www.linutronix.de ([62.245.132.108]:38070 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161051AbbENP5Y (ORCPT ); Thu, 14 May 2015 11:57:24 -0400 Content-Disposition: inline In-Reply-To: <1430167990-12333-4-git-send-email-anders.roxell@linaro.org> Sender: linux-rt-users-owner@vger.kernel.org List-ID: * Anders Roxell | 2015-04-27 22:53:10 [+0200]: >arm64 is missing support for PREEMPT_RT. The main feature which is >lacking is support for lazy preemption. The arch-specific entry code, I'm taking this but I am renaming the subject. Lazy preempt is not required by -RT but supporting it benefits it. That means you could run arm64 without it. Sebastian