Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752626AbbFKIo0 (ORCPT ); Thu, 11 Jun 2015 04:44:26 -0400 Received: from e28smtp09.in.ibm.com ([122.248.162.9]:32930 "EHLO e28smtp09.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751945AbbFKIoC (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 4/8]powerpc/perf: Add Power8 mem_access event to sysfs Date: Thu, 11 Jun 2015 14:13:33 +0530 Message-Id: <1434012217-9776-5-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: 15061108-0033-0000-0000-00000638F20F Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1482 Lines: 38 Patch add "mem_access" event to sysfs. This as-is not a raw event supported by Power8 pmu. Instead, it is formed based on raw event encoding specificed in Power8-pmu.c. Primary PMU event used here is PM_MRK_INST_CMPL. This event tracks only the completed marked instructions. Random sampling mode (MMCRA[SM]) with Random Load/Store Facility Sampling (RLS) is enabled to mark type of instructions. With Random sampling in RLS mode with PM_MRK_INST_CMPL event on Power8, the LDST field in SIER identifies the memory hierarchy level (eg: L1, L2 etc), from which a data-cache miss for a marked instruction are satisfied. Reviewed-by: Sukadev Bhattiprolu Signed-off-by: Madhavan Srinivasan --- arch/powerpc/perf/power8-events-list.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/perf/power8-events-list.h b/arch/powerpc/perf/power8-events-list.h index 1368547..fdb8ce2 100644 --- a/arch/powerpc/perf/power8-events-list.h +++ b/arch/powerpc/perf/power8-events-list.h @@ -18,3 +18,4 @@ EVENT(PM_CMPLU_STALL, 0x4000a) EVENT(PM_INST_CMPL, 0x00002) EVENT(PM_BRU_FIN, 0x10068) EVENT(PM_BR_MPRED_CMPL, 0x400f6) +EVENT(mem_access, 0x100010401e0) -- 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/