Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751556AbaLCCEU (ORCPT ); Tue, 2 Dec 2014 21:04:20 -0500 Received: from e37.co.us.ibm.com ([32.97.110.158]:41720 "EHLO e37.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750862AbaLCCER (ORCPT ); Tue, 2 Dec 2014 21:04:17 -0500 From: Sukadev Bhattiprolu To: Arnaldo Carvalho de Melo , Jiri Olsa , Michael Ellerman , Paul Mackerras Cc: dev@codyps.com, peterz@infradead.org, hbabu@us.ibm.com, , linuxppc-dev@lists.ozlabs.org Subject: [PATCH v5 0/6]: Make 24x7 and GPCI events available in sysfs Date: Tue, 2 Dec 2014 18:03:49 -0800 Message-Id: <1417572235-8197-1-git-send-email-sukadev@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.9.5 X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14120302-0025-0000-0000-0000069349B1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The current support for the 24x7 and GPCI counters in the kernel requires users to specify the domain and offset of the event numerically, which is obviously hard to use: perf stat -C 0 -e \ 'hv_24x7/domain=2,offset=0xd58,starting_index=0,lpar=0xffffffff/' \ sleep 1 This patchset exports the 24x7 and GPCI counters info in sysfs so users can specify the events by name: $ cd /sys/bus/event_source/devices/hv_24x7/events $ cat HPM_CS_FROM_L4_LDATA__PHYS_CORE domain=0x2,offset=0xd58,starting_index=$core,lpar=0x0 $ cat HPM_TLBIE__VCPU_HOME_CHIP domain=0x4,offset=0x358,starting_index=$vcpu,lpar=$sibling_guest_id perf stat -C 0 -e \ 'hv_24x7/HPM_CS_FROM_L4_LDATA__PHYS_CORE,starting_index=0' sleep 1 This patchset adds the kernel support to export events in sysfs. A follow-on patchset will add support to the perf tool to parse the event parameters like 'lpar=$sibling_guest_id' and display them via 'perf list'. Changelog[v5] - [Jiri Olsa, Peter Zijlstra] Use '$arg' notation rather than ? to indicate event parameters. - [Michael Ellerman] Separate the kernel and tool patches in the patchset into different patchsets. Changelog[v4] - [Jiri Olsa Rebase to perf/core tree to fix small merge conflict. Changelog[v3] - [Jiri Olsa] Changed the event parameters are specified. If event file specifes 'param=val' make the usage 'param=123' rather than 'val=123'. (patch 1,2/10) - Shortened event names using "PHYS" and "VCPU" (patch 4/10) - Print help message if invalid parameter is specified or required parameter is missing. - Moved 3 patches that are unrelated to parametrized events into a separate patchset. - Reordered patches so code changes come first. Changelog[v2] - [Joe Perches, David Laight] Use beNN_to_cpu() instead of guessing the size from type. - Use kmem_cache_free() to free page allocated with kmem_cache_alloc(). - Rebase to recent kernel Cody P Schafer (6): perf: provide sysfs_show for struct perf_pmu_events_attr perf: add PMU_EVENT_ATTR_STRING() helper powerpc/perf/hv-24x7: parse catalog and populate sysfs with events powerpc/perf/{hv-gpci, hv-common}: generate requests with counters annotated powerpc/perf/hv-gpci: add the remaining gpci requests powerpc/perf/hv-24x7: Document sysfs event description entries .../testing/sysfs-bus-event_source-devices-hv_24x7 | 22 + arch/powerpc/perf/hv-24x7-catalog.h | 25 + arch/powerpc/perf/hv-24x7-domains.h | 28 + arch/powerpc/perf/hv-24x7.c | 787 ++++++++++++++++++++- arch/powerpc/perf/hv-24x7.h | 12 +- arch/powerpc/perf/hv-common.c | 10 +- arch/powerpc/perf/hv-gpci-requests.h | 262 +++++++ arch/powerpc/perf/hv-gpci.c | 8 + arch/powerpc/perf/hv-gpci.h | 37 +- arch/powerpc/perf/req-gen/_begin.h | 13 + arch/powerpc/perf/req-gen/_clear.h | 5 + arch/powerpc/perf/req-gen/_end.h | 4 + arch/powerpc/perf/req-gen/_request-begin.h | 15 + arch/powerpc/perf/req-gen/_request-end.h | 8 + arch/powerpc/perf/req-gen/perf.h | 155 ++++ include/linux/perf_event.h | 10 + kernel/events/core.c | 8 + 17 files changed, 1365 insertions(+), 44 deletions(-) create mode 100644 arch/powerpc/perf/hv-24x7-domains.h create mode 100644 arch/powerpc/perf/hv-gpci-requests.h create mode 100644 arch/powerpc/perf/req-gen/_begin.h create mode 100644 arch/powerpc/perf/req-gen/_clear.h create mode 100644 arch/powerpc/perf/req-gen/_end.h create mode 100644 arch/powerpc/perf/req-gen/_request-begin.h create mode 100644 arch/powerpc/perf/req-gen/_request-end.h create mode 100644 arch/powerpc/perf/req-gen/perf.h -- 1.8.3.1 -- 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/