From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3yRGg96QrPzDr25 for ; Wed, 1 Nov 2017 03:16:05 +1100 (AEDT) Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v9VGFSx9091951 for ; Tue, 31 Oct 2017 12:16:01 -0400 Received: from e06smtp15.uk.ibm.com (e06smtp15.uk.ibm.com [195.75.94.111]) by mx0b-001b2d01.pphosted.com with ESMTP id 2dxu2dp0kx-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 31 Oct 2017 12:16:01 -0400 Received: from localhost by e06smtp15.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 31 Oct 2017 16:15:59 -0000 From: Anju T Sudhakar To: mpe@ellerman.id.au Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, maddy@linux.vnet.ibm.com, anju@linux.vnet.ibm.com Subject: [PATCH v2] powerpc/kernel/sysfs: Export ldbar spr to sysfs Date: Tue, 31 Oct 2017 21:45:47 +0530 Message-Id: <1509466547-761-1-git-send-email-anju@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Add ldbar spr to sysfs. The spr will hold thread level In-Memory Collection (IMC) counter configuration data. Signed-off-by: Anju T Sudhakar --- arch/powerpc/kernel/sysfs.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index 4437c70..f8caee0 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -485,6 +485,7 @@ SYSFS_PMCSETUP(mmcra, SPRN_MMCRA); SYSFS_SPRSETUP(purr, SPRN_PURR); SYSFS_SPRSETUP(spurr, SPRN_SPURR); SYSFS_SPRSETUP(pir, SPRN_PIR); +SYSFS_SPRSETUP(ldbar, SPRN_LDBAR); /* Lets only enable read for phyp resources and @@ -492,6 +493,7 @@ SYSFS_SPRSETUP(pir, SPRN_PIR); Lets be conservative and default to pseries. */ static DEVICE_ATTR(mmcra, 0600, show_mmcra, store_mmcra); +static DEVICE_ATTR(ldbar, 0600, show_ldbar, store_ldbar); static DEVICE_ATTR(spurr, 0400, show_spurr, NULL); static DEVICE_ATTR(purr, 0400, show_purr, store_purr); static DEVICE_ATTR(pir, 0400, show_pir, NULL); @@ -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); + if (cpu_has_feature(CPU_FTR_MMCRA)) device_create_file(s, &dev_attr_mmcra); @@ -842,6 +847,9 @@ static int unregister_cpu_online(unsigned int cpu) device_remove_file(s, &pmc_attrs[i]); #ifdef CONFIG_PPC64 + if (cpu_has_feature(CPU_FTR_ARCH_300)) + device_remove_file(s, &dev_attr_ldbar); + if (cpu_has_feature(CPU_FTR_MMCRA)) device_remove_file(s, &dev_attr_mmcra); -- 2.7.4