From patchwork Wed Jul 23 15:26:40 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Herrmann X-Patchwork-Id: 4611711 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id F20AA9F2B8 for ; Wed, 23 Jul 2014 15:30:49 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 37CBB20172 for ; Wed, 23 Jul 2014 15:30:49 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 4FAA520107 for ; Wed, 23 Jul 2014 15:30:48 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A19F16E65D; Wed, 23 Jul 2014 08:30:47 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-wi0-f171.google.com (mail-wi0-f171.google.com [209.85.212.171]) by gabe.freedesktop.org (Postfix) with ESMTP id BF7E26E65D for ; Wed, 23 Jul 2014 08:30:45 -0700 (PDT) Received: by mail-wi0-f171.google.com with SMTP id hi2so8004222wib.16 for ; Wed, 23 Jul 2014 08:30:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=GpcedqjmX4eRYuyLlpiRJndFYg9n2IkMWfITcSpMc9Q=; b=V6rF3cag5hEjXn+/zk4VDwemv07qeva7+F3vTprsWXufRV8IIUCI+0h3zaRdvNUa8F dnLxQFnd3SVnorakSQAMLLbitZOwujRn8jPZNGDc+seEK8+mFOxFGSjNbik626YSYNEb E5NaUB3CW/Z6uqLHaePzu0Z9hsrZ3uSfKdMuJUeE/QAnHp1iPe+KxaEJtX0hyKqMlsqX 1Btoa89S7bX0HK7mOENtjlhZ8Vtkj/gvLSgAhFo3eTrDnIYImajVz6cw8ysE7slZmW71 KLm/wFE1gKuV9mZGuoM4rkkGW4wyWEsrH3sY7XYcBtObwrVp/g5uw8qcJ+qSzqYN4pBi atSQ== X-Received: by 10.180.90.233 with SMTP id bz9mr4200669wib.42.1406129444045; Wed, 23 Jul 2014 08:30:44 -0700 (PDT) Received: from david-tp.localdomain (stgt-5f71b1a8.pool.mediaWays.net. [95.113.177.168]) by mx.google.com with ESMTPSA id bx2sm7092580wjb.47.2014.07.23.08.30.42 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 23 Jul 2014 08:30:42 -0700 (PDT) From: David Herrmann To: dri-devel@lists.freedesktop.org Subject: [PATCH 05/12] drm: drop i386 verification Date: Wed, 23 Jul 2014 17:26:40 +0200 Message-Id: <1406129207-1302-6-git-send-email-dh.herrmann@gmail.com> X-Mailer: git-send-email 2.0.2 In-Reply-To: <1406129207-1302-1-git-send-email-dh.herrmann@gmail.com> References: <1406129207-1302-1-git-send-email-dh.herrmann@gmail.com> Cc: Daniel Vetter X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, 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 Linux doesn't run on i386, anymore. See: commit d55c5a93db2d5fa95f233ab153f594365d95b777 Author: H. Peter Anvin Date: Wed Nov 28 11:50:24 2012 -0800 x86, 386 removal: Remove CONFIG_CMPXCHG All 486+ CPUs support CMPXCHG, so remove the fallback 386 support code. Furthermore, as the commit-message states, all 486+ CPUs support the CMPXCHG instruction and thus even legacy DRM can run fine. Drop the now superfluous "x86 == 3" check. Signed-off-by: David Herrmann --- drivers/gpu/drm/drm_fops.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index fb81d1c..a402061 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -210,10 +210,6 @@ out_unlock: */ static int drm_cpu_valid(void) { -#if defined(__i386__) - if (boot_cpu_data.x86 == 3) - return 0; /* No cmpxchg on a 386 */ -#endif #if defined(__sparc__) && !defined(__sparc_v9__) return 0; /* No cmpxchg before v9 sparc. */ #endif