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 40BF9C169C4 for ; Tue, 29 Jan 2019 11:51:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1079F20989 for ; Tue, 29 Jan 2019 11:51:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548762662; bh=XHF4K2UB65KAKrV+VMorEDKJ9gJMC4ZEDzbH1G6j3iU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=w0+n5SFLtkHeDFcigGZezwPnDxqyeAHPAR0/fJbnG3tqGaxbkXvPQCE/wwb7CWXLC gOAXentcO/s6qc/MYRk4JX5eYvDUO3y826d8wIKH50heJ+j8gDIXbgbVivAaR3mX3p bX33XJCeSQ8frbq8d4w7IAyrl1hlmGHZZlCmmfWw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731794AbfA2LvA (ORCPT ); Tue, 29 Jan 2019 06:51:00 -0500 Received: from mail.kernel.org ([198.145.29.99]:42404 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731778AbfA2Lu6 (ORCPT ); Tue, 29 Jan 2019 06:50:58 -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 9B5C820989; Tue, 29 Jan 2019 11:50:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548762658; bh=XHF4K2UB65KAKrV+VMorEDKJ9gJMC4ZEDzbH1G6j3iU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qmzKzV5GC+uuSj80c3+lwTD4pgEeL85TUhSdFggHBgiUIkZ2VGKxfMVBnru4vT8ax y6fJEoqubOoP/YhiYyrzL4RGCTlMxE/leSt5AloIvZm6XwiiQwgpZuv22jd0AguQxl A2Rfa64487E2wdKB+ZCyG7yFNxD9TAdiUT1MI55o= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Eugeniy Paltsev , Vineet Gupta Subject: [PATCH 4.9 14/44] ARC: perf: map generic branches to correct hardware condition Date: Tue, 29 Jan 2019 12:36:09 +0100 Message-Id: <20190129113141.189837374@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190129113139.826927690@linuxfoundation.org> References: <20190129113139.826927690@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 4.9-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",