From patchwork Tue Feb 2 15:23:02 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 8191431 Return-Path: X-Original-To: patchwork-linux-renesas-soc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 98411BEEE5 for ; Tue, 2 Feb 2016 15:23:14 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 13857202F2 for ; Tue, 2 Feb 2016 15:23:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 58AB620256 for ; Tue, 2 Feb 2016 15:23:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754238AbcBBPXN (ORCPT ); Tue, 2 Feb 2016 10:23:13 -0500 Received: from kirsty.vergenet.net ([202.4.237.240]:50114 "EHLO kirsty.vergenet.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752394AbcBBPXM (ORCPT ); Tue, 2 Feb 2016 10:23:12 -0500 Received: from penelope.kanocho.kobe.vergenet.net (unknown [194.78.226.26]) by kirsty.vergenet.net (Postfix) with ESMTPSA id 2F9BF25B818; Wed, 3 Feb 2016 02:23:11 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=verge.net.au; s=mail; t=1454426591; bh=jwhybA4uf3sHPVP92Fh2/MAf3jXOg0tQOxSe4/7RX/4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LNj1c0QvgcXqy0kgLwebcFzYBjRk0Pc+namqoOV/45o84k5WCOgKPxQgex8ne8bUd UwRVhLt1nTE7nfd3Yav6NaxJIFox26VfitSNeGc9wEhOKmBQIPlVua6sOQZdsrqrTJ CYAFRjOqgAlkt2NVKxUWm5RxAZ5RMGvznp9ctBGk= Received: by penelope.kanocho.kobe.vergenet.net (Postfix, from userid 7100) id C783B60472; Wed, 3 Feb 2016 02:23:07 +1100 (AEDT) From: Simon Horman To: linux-renesas-soc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, Magnus Damm , Geert Uytterhoeven , Simon Horman Subject: [PATCH 1/3] ARM: shmobile: defconfig: Do not enable CONFIG_CPU_BPREDICT_DISABLE Date: Tue, 2 Feb 2016 16:23:02 +0100 Message-Id: <406663ed61c8ad2b792824af1c1bc0e4faa711c6.1454409855.git.horms+renesas@verge.net.au> X-Mailer: git-send-email 2.7.0.rc3.207.g0ac5344 In-Reply-To: References: Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Spam-Status: No, score=-7.2 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Geert Uytterhoeven Do not disable branch prediction, as this has a big performance impact. After re-enabling branch prediction, __loop_delay() runs 16 (Cortex A15) or 11 (Cortex A9) times faster than before. Signed-off-by: Geert Uytterhoeven Signed-off-by: Simon Horman --- arch/arm/configs/shmobile_defconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig index 969738324a5d..5208b5caacd1 100644 --- a/arch/arm/configs/shmobile_defconfig +++ b/arch/arm/configs/shmobile_defconfig @@ -20,7 +20,6 @@ CONFIG_ARCH_R8A7791=y CONFIG_ARCH_R8A7793=y CONFIG_ARCH_R8A7794=y CONFIG_ARCH_SH73A0=y -CONFIG_CPU_BPREDICT_DISABLE=y CONFIG_PL310_ERRATA_588369=y CONFIG_ARM_ERRATA_754322=y CONFIG_PCI=y