From patchwork Mon Jun 6 16:55:52 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 852632 Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by demeter2.kernel.org (8.14.4/8.14.3) with ESMTP id p56GvAVT022857 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Mon, 6 Jun 2011 16:57:32 GMT Received: from canuck.infradead.org ([2001:4978:20e::1]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1QTd6n-0002MK-1z; Mon, 06 Jun 2011 16:56:57 +0000 Received: from localhost ([127.0.0.1] helo=canuck.infradead.org) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1QTd6m-0001M3-J6; Mon, 06 Jun 2011 16:56:56 +0000 Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1QTd5s-0001AC-Gs for linux-arm-kernel@lists.infradead.org; Mon, 06 Jun 2011 16:56:03 +0000 Received: from localhost.localdomain (e102144-lin.cambridge.arm.com [10.1.69.60]) by cam-admin0.cambridge.arm.com (8.12.6/8.12.6) with ESMTP id p56GshFH002625; Mon, 6 Jun 2011 17:54:44 +0100 (BST) From: Will Deacon To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 08/11] ARM: perf: remove confusing comment from v7 perf events backend Date: Mon, 6 Jun 2011 17:55:52 +0100 Message-Id: <1307379355-13802-9-git-send-email-will.deacon@arm.com> X-Mailer: git-send-email 1.7.0.4 MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1307379355-13802-1-git-send-email-will.deacon@arm.com> References: <1307379355-13802-1-git-send-email-will.deacon@arm.com> X-CRM114-Version: 20090807-BlameThorstenAndJenny ( TRE 0.7.6 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20110606_125601_055646_9BE50C0F X-CRM114-Status: GOOD ( 12.55 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.3.1 on canuck.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain Cc: Will Deacon X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Mon, 06 Jun 2011 16:57:32 +0000 (UTC) The comment about measuring TLB misses and refills in the ARMv7 perf backend makes little sense and refers loosely to raw counters that should be used instead. This patch removes the comments to avoid any confusion. Signed-off-by: Will Deacon --- arch/arm/kernel/perf_event_v7.c | 10 ---------- 1 files changed, 0 insertions(+), 10 deletions(-) diff --git a/arch/arm/kernel/perf_event_v7.c b/arch/arm/kernel/perf_event_v7.c index 4960686..554eba3 100644 --- a/arch/arm/kernel/perf_event_v7.c +++ b/arch/arm/kernel/perf_event_v7.c @@ -207,11 +207,6 @@ static const unsigned armv7_a8_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] }, }, [C(DTLB)] = { - /* - * Only ITLB misses and DTLB refills are supported. - * If users want the DTLB refills misses a raw counter - * must be used. - */ [C(OP_READ)] = { [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED, [C(RESULT_MISS)] = ARMV7_PERFCTR_DTLB_REFILL, @@ -323,11 +318,6 @@ static const unsigned armv7_a9_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] }, }, [C(DTLB)] = { - /* - * Only ITLB misses and DTLB refills are supported. - * If users want the DTLB refills misses a raw counter - * must be used. - */ [C(OP_READ)] = { [C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED, [C(RESULT_MISS)] = ARMV7_PERFCTR_DTLB_REFILL,