From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753424AbeCFLFp (ORCPT ); Tue, 6 Mar 2018 06:05:45 -0500 Received: from ozlabs.org ([103.22.144.67]:59491 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750817AbeCFLFo (ORCPT ); Tue, 6 Mar 2018 06:05:44 -0500 Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au From: Michael Ellerman To: Anju T Sudhakar Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, maddy@linux.vnet.ibm.com, anju@linux.vnet.ibm.com Subject: Re: [PATCH v3] powerpc/kernel/sysfs: Export ldbar spr to sysfs In-Reply-To: <1510232445-10869-1-git-send-email-anju@linux.vnet.ibm.com> References: <1510232445-10869-1-git-send-email-anju@linux.vnet.ibm.com> Date: Tue, 06 Mar 2018 22:05:39 +1100 Message-ID: <878tb5foqk.fsf@concordia.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Anju T Sudhakar writes: > diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c > index 4437c70..caefb64 100644 > --- a/arch/powerpc/kernel/sysfs.c > +++ b/arch/powerpc/kernel/sysfs.c > @@ -757,6 +759,9 @@ static int register_cpu_online(unsigned int cpu) > device_create_file(s, &pmc_attrs[i]); > > #ifdef CONFIG_PPC64 > + if (cpu_has_feature(CPU_FTR_ARCH_300)) > + device_create_file(s, &dev_attr_ldbar); Is this register readable in supervisor state? cheers