Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751912AbbFKIoM (ORCPT ); Thu, 11 Jun 2015 04:44:12 -0400 Received: from e28smtp08.in.ibm.com ([122.248.162.8]:34990 "EHLO e28smtp08.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751939AbbFKIoC (ORCPT ); Thu, 11 Jun 2015 04:44:02 -0400 From: Madhavan Srinivasan To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, sukadev@linux.vnet.ibm.com, eranian@google.com, khandual@linux.vnet.ibm.com, rusty@rustcorp.com.au, Madhavan Srinivasan Subject: [PATCH 2/8]powerpc/perf: Export Power8 generic events in sysfs Date: Thu, 11 Jun 2015 14:13:31 +0530 Message-Id: <1434012217-9776-3-git-send-email-maddy@linux.vnet.ibm.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1434012217-9776-1-git-send-email-maddy@linux.vnet.ibm.com> References: <1434012217-9776-1-git-send-email-maddy@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15061108-0029-0000-0000-00000660DBCC Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3599 Lines: 114 From: Sukadev Bhattiprolu Export generic perf events for Power8 in sysfs. Signed-off-by: Sukadev Bhattiprolu Signed-off-by: Madhavan Srinivasan --- arch/powerpc/perf/power8-events-list.h | 20 ++++++++++++++++ arch/powerpc/perf/power8-pmu.c | 43 +++++++++++++++++++++++++++++----- 2 files changed, 57 insertions(+), 6 deletions(-) create mode 100644 arch/powerpc/perf/power8-events-list.h diff --git a/arch/powerpc/perf/power8-events-list.h b/arch/powerpc/perf/power8-events-list.h new file mode 100644 index 0000000..1368547 --- /dev/null +++ b/arch/powerpc/perf/power8-events-list.h @@ -0,0 +1,20 @@ +/* + * Performance counter support for POWER8 processors. + * + * Copyright 2013 Sukadev Bhattiprolu, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +/* + * Some power8 event codes. + */ +EVENT(PM_CYC, 0x0001e) +EVENT(PM_GCT_NOSLOT_CYC, 0x100f8) +EVENT(PM_CMPLU_STALL, 0x4000a) +EVENT(PM_INST_CMPL, 0x00002) +EVENT(PM_BRU_FIN, 0x10068) +EVENT(PM_BR_MPRED_CMPL, 0x400f6) diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c index 396351d..a542310 100644 --- a/arch/powerpc/perf/power8-pmu.c +++ b/arch/powerpc/perf/power8-pmu.c @@ -21,12 +21,11 @@ /* * Some power8 event codes. */ -#define PM_CYC 0x0001e -#define PM_GCT_NOSLOT_CYC 0x100f8 -#define PM_CMPLU_STALL 0x4000a -#define PM_INST_CMPL 0x00002 -#define PM_BRU_FIN 0x10068 -#define PM_BR_MPRED_CMPL 0x400f6 +enum { +#include "power8-events-list.h" +}; + +#undef EVENT /* All L1 D cache load references counted at finish, gated by reject */ #define PM_LD_REF_L1 0x100ee @@ -604,6 +603,37 @@ static void power8_disable_pmc(unsigned int pmc, unsigned long mmcr[]) mmcr[1] &= ~(0xffUL << MMCR1_PMCSEL_SHIFT(pmc + 1)); } +GENERIC_EVENT_ATTR(cpu-cyles, PM_CYC); +GENERIC_EVENT_ATTR(stalled-cycles-frontend, PM_GCT_NOSLOT_CYC); +GENERIC_EVENT_ATTR(stalled-cycles-backend, PM_CMPLU_STALL); +GENERIC_EVENT_ATTR(instructions, PM_INST_CMPL); +GENERIC_EVENT_ATTR(branch-instructions, PM_BRU_FIN); +GENERIC_EVENT_ATTR(branch-misses, PM_BR_MPRED_CMPL); + +#define EVENT(_name, _code) POWER_EVENT_ATTR(_name, _name); +#include "power8-events-list.h" +#undef EVENT + +#define EVENT(_name, _code) POWER_EVENT_PTR(_name), + +static struct attribute *power8_events_attr[] = { + GENERIC_EVENT_PTR(PM_CYC), + GENERIC_EVENT_PTR(PM_GCT_NOSLOT_CYC), + GENERIC_EVENT_PTR(PM_CMPLU_STALL), + GENERIC_EVENT_PTR(PM_INST_CMPL), + GENERIC_EVENT_PTR(PM_BRU_FIN), + GENERIC_EVENT_PTR(PM_BR_MPRED_CMPL), + + #include "power8-events-list.h" + #undef EVENT + NULL +}; + +static struct attribute_group power8_pmu_events_group = { + .name = "events", + .attrs = power8_events_attr, +}; + PMU_FORMAT_ATTR(event, "config:0-49"); PMU_FORMAT_ATTR(pmcxsel, "config:0-7"); PMU_FORMAT_ATTR(mark, "config:8"); @@ -640,6 +670,7 @@ struct attribute_group power8_pmu_format_group = { static const struct attribute_group *power8_pmu_attr_groups[] = { &power8_pmu_format_group, + &power8_pmu_events_group, NULL, }; -- 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/