From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934078Ab2JZUfE (ORCPT ); Fri, 26 Oct 2012 16:35:04 -0400 Received: from mga01.intel.com ([192.55.52.88]:35823 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759092Ab2JZUa1 (ORCPT ); Fri, 26 Oct 2012 16:30:27 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.80,656,1344236400"; d="scan'208";a="240686956" From: Andi Kleen To: linux-kernel@vger.kernel.org Cc: acme@redhat.com, peterz@infradead.org, jolsa@redhat.com, eranian@google.com, mingo@kernel.org, Andi Kleen Subject: [PATCH 27/33] tools, perf: Add a precise event qualifier Date: Fri, 26 Oct 2012 13:30:09 -0700 Message-Id: <1351283415-13170-28-git-send-email-andi@firstfloor.org> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <1351283415-13170-1-git-send-email-andi@firstfloor.org> References: <1351283415-13170-1-git-send-email-andi@firstfloor.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andi Kleen Add a precise qualifier, like cpu/event=0x3c,precise=1/ This is needed so that the kernel can request enabling PEBS for TSX events. The parser bails out on any sysfs parse errors, so this is needed in any case to handle any event on the TSX perf kernel. Signed-off-by: Andi Kleen --- tools/perf/util/parse-events.c | 6 ++++++ tools/perf/util/parse-events.h | 1 + tools/perf/util/parse-events.l | 1 + 3 files changed, 8 insertions(+), 0 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 409da3e..f800765 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -526,6 +526,12 @@ do { \ case PARSE_EVENTS__TERM_TYPE_NAME: CHECK_TYPE_VAL(STR); break; + case PARSE_EVENTS__TERM_TYPE_PRECISE: + CHECK_TYPE_VAL(NUM); + if ((unsigned)term->val.num > 2) + return -EINVAL; + attr->precise_ip = term->val.num; + break; default: return -EINVAL; } diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 839230c..0c78bb8 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -49,6 +49,7 @@ enum { PARSE_EVENTS__TERM_TYPE_NAME, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE, + PARSE_EVENTS__TERM_TYPE_PRECISE, }; struct parse_events__term { diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index ef602f0..c2e5142 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -168,6 +168,7 @@ period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); } branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); } , { return ','; } "/" { BEGIN(INITIAL); return '/'; } +precise { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_PRECISE); } } mem: { BEGIN(mem); return PE_PREFIX_MEM; } -- 1.7.7.6