From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1470C169C4 for ; Tue, 29 Jan 2019 11:44:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8117D2086C for ; Tue, 29 Jan 2019 11:44:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548762247; bh=DXYtHZ9cz3AQgB+5k3oEvhn/Ff9zlamZOHkL+xsOlc4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=vmIDJq/xiFk0bNHFgR3xh6diLhn0OtxbBniceqhq7gOEZQFH5xc0D4226lXY6Nat7 cm1kIt+tdOzUu6NkJIQiTieZFFmPS2OSaisycPOlcbHULBJy3WdcuSehlKsxVeEgY0 zEzoNkT5DT81lPbKkc/HDlUyYtN+t535CyN03+qU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730490AbfA2LoF (ORCPT ); Tue, 29 Jan 2019 06:44:05 -0500 Received: from mail.kernel.org ([198.145.29.99]:34110 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730455AbfA2Ln5 (ORCPT ); Tue, 29 Jan 2019 06:43:57 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E17C42083B; Tue, 29 Jan 2019 11:43:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548762236; bh=DXYtHZ9cz3AQgB+5k3oEvhn/Ff9zlamZOHkL+xsOlc4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rdFWRrxVtiC4B/NIZaJpY4hss+0hZJWGQO/vNoybcl/61Xj0CHkd+n3a3Uq8o9Z+P 2i8kgUMajiHAIxA6j36O4we+00GgvYayAc6H2a9UymOrD+aCYTx5fGzRoqn+bZm7kz /oTEEGz26CX/U7tYJWzdDLPZ2Q2nJzfQVoXxNJKk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Eugeniy Paltsev , Vineet Gupta Subject: [PATCH 4.19 038/103] ARC: perf: map generic branches to correct hardware condition Date: Tue, 29 Jan 2019 12:35:15 +0100 Message-Id: <20190129113201.809017929@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190129113159.567154026@linuxfoundation.org> References: <20190129113159.567154026@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Eugeniy Paltsev commit 3affbf0e154ee351add6fcc254c59c3f3947fa8f upstream. So far we've mapped branches to "ijmp" which also counts conditional branches NOT taken. This makes us different from other architectures such as ARM which seem to be counting only taken branches. So use "ijmptak" hardware condition which only counts (all jump instructions that are taken) 'ijmptak' event is available on both ARCompact and ARCv2 ISA based cores. Signed-off-by: Eugeniy Paltsev Cc: stable@vger.kernel.org Signed-off-by: Vineet Gupta [vgupta: reworked changelog] Signed-off-by: Greg Kroah-Hartman --- arch/arc/include/asm/perf_event.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/arch/arc/include/asm/perf_event.h +++ b/arch/arc/include/asm/perf_event.h @@ -103,7 +103,8 @@ static const char * const arc_pmu_ev_hw_ /* counts condition */ [PERF_COUNT_HW_INSTRUCTIONS] = "iall", - [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "ijmp", /* Excludes ZOL jumps */ + /* All jump instructions that are taken */ + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "ijmptak", [PERF_COUNT_ARC_BPOK] = "bpok", /* NP-NT, PT-T, PNT-NT */ #ifdef CONFIG_ISA_ARCV2 [PERF_COUNT_HW_BRANCH_MISSES] = "bpmp",