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 3wwhR41mC0zDr1S for ; Mon, 26 Jun 2017 05:03:11 +1000 (AEST) Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v5PIxQrL026921 for ; Sun, 25 Jun 2017 15:03:09 -0400 Received: from e23smtp06.au.ibm.com (e23smtp06.au.ibm.com [202.81.31.148]) by mx0b-001b2d01.pphosted.com with ESMTP id 2babdevg52-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Sun, 25 Jun 2017 15:03:09 -0400 Received: from localhost by e23smtp06.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 26 Jun 2017 05:03:06 +1000 Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay09.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v5PJ34ei65732692 for ; Mon, 26 Jun 2017 05:03:04 +1000 Received: from d23av01.au.ibm.com (localhost [127.0.0.1]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v5PJ33Pf029975 for ; Mon, 26 Jun 2017 05:03:04 +1000 From: Madhavan Srinivasan To: mpe@ellerman.id.au Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, anton@samba.org, Madhavan Srinivasan Subject: [PATCH] powerpc/sysfs: Expose MMCR2 spr in sysfs Date: Mon, 26 Jun 2017 00:32:52 +0530 Message-Id: <1498417372-27137-1-git-send-email-maddy@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Monitor Mode Control Register 2 (MMCR2) is a 64-bit register that contains 9-bit control fields for controlling the operation of PMC1 - PMC6. Patch to expose the MMCR2 spr in sysfs. Signed-off-by: Madhavan Srinivasan --- 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 4437c70c7c2b..587eb3a7b5da 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -482,6 +482,7 @@ SYSFS_PMCSETUP(pmc7, SPRN_PMC7); SYSFS_PMCSETUP(pmc8, SPRN_PMC8); SYSFS_PMCSETUP(mmcra, SPRN_MMCRA); +SYSFS_PMCSETUP(mmcr2, SPRN_MMCR2); SYSFS_SPRSETUP(purr, SPRN_PURR); SYSFS_SPRSETUP(spurr, SPRN_SPURR); SYSFS_SPRSETUP(pir, SPRN_PIR); @@ -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(mmcr2, 0600, show_mmcr2, store_mmcr2); 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); @@ -760,6 +762,9 @@ static int register_cpu_online(unsigned int cpu) if (cpu_has_feature(CPU_FTR_MMCRA)) device_create_file(s, &dev_attr_mmcra); + if (cpu_has_feature(CPU_FTR_ARCH_207S)) + device_create_file(s, &dev_attr_mmcr2); + if (cpu_has_feature(CPU_FTR_PURR)) { if (!firmware_has_feature(FW_FEATURE_LPAR)) add_write_permission_dev_attr(&dev_attr_purr); @@ -845,6 +850,9 @@ static int unregister_cpu_online(unsigned int cpu) if (cpu_has_feature(CPU_FTR_MMCRA)) device_remove_file(s, &dev_attr_mmcra); + if (cpu_has_feature(CPU_FTR_ARCH_207S)) + device_remove_file(s, &dev_attr_mmcr2); + if (cpu_has_feature(CPU_FTR_PURR)) device_remove_file(s, &dev_attr_purr); -- 2.7.4