From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e8.ny.us.ibm.com (e8.ny.us.ibm.com [32.97.182.138]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 494B61A0655 for ; Mon, 22 Dec 2014 18:49:29 +1100 (AEDT) Received: from /spool/local by e8.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 22 Dec 2014 02:49:26 -0500 Received: from b01cxnp23033.gho.pok.ibm.com (b01cxnp23033.gho.pok.ibm.com [9.57.198.28]) by d01dlp03.pok.ibm.com (Postfix) with ESMTP id 8F57AC90041 for ; Mon, 22 Dec 2014 02:41:25 -0500 (EST) Received: from d01av04.pok.ibm.com (d01av04.pok.ibm.com [9.56.224.64]) by b01cxnp23033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id sBM7nM6V25100338 for ; Mon, 22 Dec 2014 07:49:22 GMT Received: from d01av04.pok.ibm.com (localhost [127.0.0.1]) by d01av04.pok.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id sBM7nLuQ009026 for ; Mon, 22 Dec 2014 02:49:22 -0500 From: Sukadev Bhattiprolu To: Arnaldo Carvalho de Melo , Jiri Olsa , Michael Ellerman , Paul Mackerras Subject: [PATCH v6 0/7] Make 24x7 and GPCI events available in sysfs Date: Sun, 21 Dec 2014 23:48:45 -0800 Message-Id: <1419234532-22657-1-git-send-email-sukadev@linux.vnet.ibm.com> Cc: peterz@infradead.org, linuxppc-dev@lists.ozlabs.org, dev@codyps.com, linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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,core=?,lpar=0x0 $ cat HPM_TLBIE__VCPU_HOME_CHIP domain=0x4,offset=0x358,core=?,lpar=? perf stat -C 0 -e \ 'hv_24x7/HPM_CS_FROM_L4_LDATA__PHYS_CORE,core=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=?' and display them via 'perf list'. Changelog[v6] [Jiri Olsa, Sukadev Bhattiprolu] Rather than display 'starting_index=$core' in perf.list and sysfs and expect user to specify a value for 'starting_index', replace 'starting_index' with what it really means for the event. i.e for an event, if starting_index refers to 'core' then display 'core=?' in both perf list and sysfs (see examples above). Changelog[v5] - [Jiri Olsa, Peter Zijlstra] Use '$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 Sukadev Bhattiprolu (1): perf: define EVENT_DEFINE_RANGE_FORMAT_LITE helper .../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 | 795 ++++++++++++++++++++- arch/powerpc/perf/hv-24x7.h | 12 +- arch/powerpc/perf/hv-common.c | 10 +- arch/powerpc/perf/hv-common.h | 10 + arch/powerpc/perf/hv-gpci-requests.h | 261 +++++++ arch/powerpc/perf/hv-gpci.c | 23 + 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 + 18 files changed, 1393 insertions(+), 48 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