From patchwork Wed Oct 23 05:00:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhanusree Mahesh X-Patchwork-Id: 11205879 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D406B112C for ; Wed, 23 Oct 2019 08:10:21 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BC98921920 for ; Wed, 23 Oct 2019 08:10:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BC98921920 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 086E26E999; Wed, 23 Oct 2019 08:10:17 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-pf1-x442.google.com (mail-pf1-x442.google.com [IPv6:2607:f8b0:4864:20::442]) by gabe.freedesktop.org (Postfix) with ESMTPS id A79FA6E0F0 for ; Wed, 23 Oct 2019 05:00:36 +0000 (UTC) Received: by mail-pf1-x442.google.com with SMTP id q21so12099469pfn.11 for ; Tue, 22 Oct 2019 22:00:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=EDODrmyOGAOqB9qtNo2M1fV2YoGZiwu66fxJX/b8Z8c=; b=BTYEqFyNNfvsCqtdh+x0ksTGvA2KC37+RYRGlI9T3h9qCzPfnz0lxC249CR+Jgh4JW 9zqHFTgYIY9XUn6pMDaoiog1LMS1zs95YfoNJIshvPR9tJz0QM1ojEDTB3QI7BK/PBJc Fjo1qfMfx8QjGWhsIJu5gML5FI9PtiTlz1H4t7K8lIVYH2Kvojj0+soug/Lwm9yPp/VN apYU6QoAHJ2T1bmt92K55ICSU5VC0vHit2ur3ONnjgHhSj7+wwdyB1FkkpEzUpTmRCJw KYNcHHZ5yKvpRTosutsHhXauWUrpyDZWXx/nvzboZbYsXKrjQrvSWcwL1EtcNHbsfVy4 E9Gg== X-Gm-Message-State: APjAAAXD+/ssY7wFDvha8xsGYXnBwSvjcT3JaV994UMaijrvMFAbtZK2 X5uK0D7nTAegbBW58UyzOJs470R/ X-Google-Smtp-Source: APXvYqzdPLKD2gsnnjhVQJBuTwwKf4arW310y7iftzUWnyvp7oFMqc4OOwV9YsW/0CMRKEuW7o9fqg== X-Received: by 2002:a62:7c4d:: with SMTP id x74mr8228577pfc.259.1571806835841; Tue, 22 Oct 2019 22:00:35 -0700 (PDT) Received: from bhanu-VirtualBox.danlawtech.com ([183.82.102.247]) by smtp.gmail.com with ESMTPSA id c14sm24608529pfm.179.2019.10.22.22.00.33 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 22 Oct 2019 22:00:35 -0700 (PDT) From: Bhanusree To: dri-devel@lists.freedesktop.org, Maarten Lankhorst , Maxime Ripard , Sean Paul , David Airlie , Daniel Vetter Subject: [PATCH] drm/gpu: Add comment for memory barrier Date: Wed, 23 Oct 2019 10:30:02 +0530 Message-Id: <1571806802-17987-1-git-send-email-bhanusreemahesh@gmail.com> X-Mailer: git-send-email 2.7.4 X-Mailman-Approved-At: Wed, 23 Oct 2019 08:09:38 +0000 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=EDODrmyOGAOqB9qtNo2M1fV2YoGZiwu66fxJX/b8Z8c=; b=uVlxHWghIR2+JXTTpztXjygYKoGAMmSxL3NOahmBrDhhldGyyWIM5XePjOzAufKIOR 4U9hsBiNSGijA878rs56d+H3skI3lppWV0G00FyBTZZBzKEjQIyvU92vDStArXc15veV Zgf+gYM5HDH1uQrSb2QuOelsQk5uHgU7hRFJoweTE7Wj7qFD+jnhUj3dYBmBax9240el QLsj35hMT0PM1schY3Y5LizkfrDsv6rA/n0EnKz8Mtxc9KjTSmkYBlClzFOQi4FsErbb SKIUyPkDVs3+2DBQhh9vkXjpPTJv3JnyWIRX6D2Tubn2FMgr7w3ncklrAO9UIwnAzzAd rOew== X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bhanusree MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" -Add comment for memory barrier -Issue found using checkpatch.pl Signed-off-by: Bhanusree --- drivers/gpu/drm/drm_cache.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c index 3bd76e9..39910f2 100644 --- a/drivers/gpu/drm/drm_cache.c +++ b/drivers/gpu/drm/drm_cache.c @@ -62,10 +62,10 @@ static void drm_cache_flush_clflush(struct page *pages[], { unsigned long i; - mb(); + mb(); /*make sure page address is read*/ for (i = 0; i < num_pages; i++) drm_clflush_page(*pages++); - mb(); + mb(); /*make sure all addresses of pages are read sequentially*/ } #endif