From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Williams Subject: Re: [PATCH 13/56] microblaze_v2: PVR support, cpuinfo support Date: Mon, 05 May 2008 12:14:23 +1000 Message-ID: <1209953663.5798.61.camel@localhost> References: <1209901305-6404-1-git-send-email-monstr@seznam.cz> <684c36e5ad3f598e5079e88ec195545c4a7150c2.1209897266.git.monstr@monstr.eu> <0674b1f7abb9a3d564b68c95bc28adc2c2fe9551.1209897266.git.monstr@monstr.eu> <9a7c6646e5dd9724c1cf34767adec181481fa3ef.1209897266.git.monstr@monstr.eu> <932956128c9c655a218a940eaf02017a5dd0bdf9.1209897266.git.monstr@monstr.eu> <2f801c33caee22e112af51ae927c264ce99ead01.1209897266.git.monstr@monstr.eu> <2391e49379fb6639f57d9d6e5811f3d49a4c6fda.1209897266.git.monstr@monstr.eu> <0873f3a1f3b72591735c6461b51964693cac52e5.1209897266.git.monstr@monstr.eu> <0ba1f259d3c17eba54e334622493577493f5065f.1209897266.git.monstr@monstr.eu> <694451053534fea7b78fb9d618b53a2b5ebeb602.1209897266.git.monstr@monstr.eu> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from uki.us.mooball.net ([66.98.178.13]:49208 "EHLO uki.us.mooball.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754066AbYEECPK (ORCPT ); Sun, 4 May 2008 22:15:10 -0400 In-Reply-To: <694451053534fea7b78fb9d618b53a2b5ebeb602.1209897266.git.monstr@monstr.eu> Sender: linux-arch-owner@vger.kernel.org List-ID: To: monstr@seznam.cz Cc: linux-kernel@vger.kernel.org, arnd@arndb.de, linux-arch@vger.kernel.org, stephen.neuendorffer@xilinx.com, John.Linn@xilinx.com, matthew@wil.cx, will.newton@gmail.com, drepper@redhat.com, microblaze-uclinux@itee.uq.edu.au, grant.likely@secretlab.ca, Michal Simek > +int cpu_has_pvr(void) > +{ > + unsigned flags; > + unsigned pvr0; > + int ret = 0; > + > + local_irq_save(flags); > + ... > +out: > + local_irq_restore(flags); > + return ret; > +} The actual IRQ clear/restore is not required - can you just use local_save_flags() or similar to read the MSR?