Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932429AbbFBQDg (ORCPT ); Tue, 2 Jun 2015 12:03:36 -0400 Received: from e23smtp09.au.ibm.com ([202.81.31.142]:37130 "EHLO e23smtp09.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759545AbbFBQBX (ORCPT ); Tue, 2 Jun 2015 12:01:23 -0400 From: Madhavan Srinivasan To: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: Madhavan Srinivasan , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Sukadev Bhattiprolu , Anshuman Khandual , Stephane Eranian Subject: [PATCH v1 7/9]powerpc/powernv: Event attr creation and PMU registration Date: Tue, 2 Jun 2015 21:29:36 +0530 Message-Id: <1433260778-26497-8-git-send-email-maddy@linux.vnet.ibm.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1433260778-26497-1-git-send-email-maddy@linux.vnet.ibm.com> References: <1433260778-26497-1-git-send-email-maddy@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15060216-0033-0000-0000-0000019874AD Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2579 Lines: 91 Patch adds common event attribute function and Nest pmu registration call. Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Sukadev Bhattiprolu Cc: Anshuman Khandual Cc: Stephane Eranian Signed-off-by: Madhavan Srinivasan --- arch/powerpc/perf/nest-pmu.c | 52 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/arch/powerpc/perf/nest-pmu.c b/arch/powerpc/perf/nest-pmu.c index 514a0be..dd84fd7 100644 --- a/arch/powerpc/perf/nest-pmu.c +++ b/arch/powerpc/perf/nest-pmu.c @@ -244,6 +244,49 @@ static int update_pmu_ops(struct nest_pmu *pmu) return 0; } +/* + * Populate event name and string in attribute + */ +struct attribute *dev_str_attr(char *name, char *str) +{ + struct perf_pmu_events_attr *attr; + + attr = kzalloc(sizeof(*attr), GFP_KERNEL); + + attr->event_str = (const char *)str; + attr->attr.attr.name = name; + attr->attr.attr.mode = 0444; + attr->attr.show = perf_event_sysfs_show; + + return &attr->attr.attr; +} + +int update_events_in_group( + struct ppc64_nest_ima_events *p8_events, int idx, + struct nest_pmu *pmu) +{ + struct attribute_group *attr_group; + struct attribute **attrs; + int i; + + attr_group = kzalloc(((sizeof(struct attribute *) * (idx + 1)) + + sizeof(*attr_group)), GFP_KERNEL); + if (!attr_group) + return -ENOMEM; + + attrs = (struct attribute **)(attr_group + 1); + attr_group->name = "events"; + attr_group->attrs = attrs; + + for (i=0; i< idx; i++, p8_events++) + attrs[i] = dev_str_attr((char *)p8_events->ev_name, + (char *)p8_events->ev_value); + + pmu->attr_groups[0] = attr_group; + return 0; +} + + static int nest_pmu_create(struct device_node *dev, int pmu_index) { struct ppc64_nest_ima_events **p8_events_arr; @@ -364,6 +407,15 @@ static int nest_pmu_create(struct device_node *dev, int pmu_index) } } + update_events_in_group( + (struct ppc64_nest_ima_events *)p8_events_arr, + idx, pmu_ptr); + update_pmu_ops(pmu_ptr); + + /* Register the pmu */ + perf_pmu_register(&pmu_ptr->pmu, pmu_ptr->pmu.name, -1); + printk(KERN_INFO "Nest PMU %s Registered\n", pmu_ptr->pmu.name); + return 0; } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/