Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755479Ab3EVGXT (ORCPT ); Wed, 22 May 2013 02:23:19 -0400 Received: from e28smtp05.in.ibm.com ([122.248.162.5]:47477 "EHLO e28smtp05.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754845Ab3EVGXO (ORCPT ); Wed, 22 May 2013 02:23:14 -0400 From: Anshuman Khandual To: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org Cc: michael@ellerman.id.au, mikey@neuling.org, peterz@infradead.org, eranian@google.com, ak@linux.intel.com, mingo@kernel.org Subject: [PATCH 1/5] perf: New conditional branch filter criteria in branch stack sampling Date: Wed, 22 May 2013 11:52:37 +0530 Message-Id: <1369203761-12649-2-git-send-email-khandual@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1369203761-12649-1-git-send-email-khandual@linux.vnet.ibm.com> References: <1369203761-12649-1-git-send-email-khandual@linux.vnet.ibm.com> X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13052206-8256-0000-0000-0000079951D4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1365 Lines: 34 POWER8 PMU based BHRB supports filtering for conditional branches. This patch introduces new branch filter PERF_SAMPLE_BRANCH_COND which will extend the existing perf ABI. Other architectures can provide this functionality with either HW filtering support (if present) or with SW filtering of instructions. Signed-off-by: Anshuman Khandual --- include/uapi/linux/perf_event.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index fb104e5..cb0de86 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -157,8 +157,9 @@ enum perf_branch_sample_type { PERF_SAMPLE_BRANCH_ANY_CALL = 1U << 4, /* any call branch */ PERF_SAMPLE_BRANCH_ANY_RETURN = 1U << 5, /* any return branch */ PERF_SAMPLE_BRANCH_IND_CALL = 1U << 6, /* indirect calls */ + PERF_SAMPLE_BRANCH_COND = 1U << 7, /* conditional branches */ - PERF_SAMPLE_BRANCH_MAX = 1U << 7, /* non-ABI */ + PERF_SAMPLE_BRANCH_MAX = 1U << 8, /* non-ABI */ }; #define PERF_SAMPLE_BRANCH_PLM_ALL \ -- 1.7.11.7 -- 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/