From patchwork Thu Oct 24 04:28:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhanusree Mahesh X-Patchwork-Id: 11208385 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 F261D14ED for ; Thu, 24 Oct 2019 07:27:47 +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 DB1D220684 for ; Thu, 24 Oct 2019 07:27:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DB1D220684 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 665E26E105; Thu, 24 Oct 2019 07:27:39 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-pg1-x541.google.com (mail-pg1-x541.google.com [IPv6:2607:f8b0:4864:20::541]) by gabe.freedesktop.org (Postfix) with ESMTPS id A963E6E09E for ; Thu, 24 Oct 2019 04:35:21 +0000 (UTC) Received: by mail-pg1-x541.google.com with SMTP id u23so2753634pgo.0 for ; Wed, 23 Oct 2019 21:35:21 -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=CzCw3IYqeYSXpGArtHPpGd9GmjU7vUzYamH5j0DtGSA=; b=O+NNpfN9JR619JeodCrmO/u+gnbgvhLbRsNiUvkToq5FpCYeQ1TDcbwNglL0yW3kpK cRgbDB/63EsSLCbSCE+EuLBU+2hOwLTLMNZDpnN0MSFZkXjr3nK+u0YWxR8RJePf8l7/ vVgI4Y04GyZv2qoDV8OESvADGgoT1MeGBf9b6TFdwN2oemY1Mbdb0pGnAxvAQpf1b+VC lN+SJiPmm2zYZji5MyOuF8ApJqTRjZsqDCR0Ng/liQABBOZtUDpVB+tFg3ey67Cej2xb Cygg0CpTXaXQBoHH/ouM8DbyNa5zV6cFW6SNUH+hkh/WAYCGlMeM6ZFKcd5O86mEv4do U68Q== X-Gm-Message-State: APjAAAVfpyMCa0L3JQc0pnQjye1aam42xQ9Hewzq/hP2CQRNZ9Hge06Q 5cNxxhmcgYDMhbDNH6eK1xGZ0xxm X-Google-Smtp-Source: APXvYqyHZ4muQM2ZmLdy2/Un3yNRaDV3CoQ34+bsEY5/CIJQf0L3VKbl6ac1cjXtIh7d71QR+GS1kA== X-Received: by 2002:aa7:8dd9:: with SMTP id j25mr14817551pfr.94.1571891720847; Wed, 23 Oct 2019 21:35:20 -0700 (PDT) Received: from bhanu-VirtualBox.danlawtech.com ([183.82.102.247]) by smtp.gmail.com with ESMTPSA id q33sm23553605pgm.50.2019.10.23.21.35.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 23 Oct 2019 21:35:20 -0700 (PDT) From: Bhanusree To: dri-devel@lists.freedesktop.org Subject: [PATCH v2] drm/gpu: Add comment for memory barrier Date: Thu, 24 Oct 2019 09:58:33 +0530 Message-Id: <1571891313-14341-1-git-send-email-bhanusreemahesh@gmail.com> X-Mailer: git-send-email 2.7.4 X-Mailman-Approved-At: Thu, 24 Oct 2019 07:27:37 +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=CzCw3IYqeYSXpGArtHPpGd9GmjU7vUzYamH5j0DtGSA=; b=NnOdq+8P7mM7NllNfAhwbDY2cGk9Yb6JO7JTkDZT/OBzyCvl1GyKZQjY/3UDev2EOA aOTqbtkTMMrlwcQSc3keD8O8Jj//G2GAmZ7l/OGyox+BVAFOmE3BWdJyoQEgI6fP/1xr g4YRqtYBdPb5Zx3HZyCJVO7nBMyW6ozDoH+tBOngg2iIpAr7emDmZNGLROfW3iK72+ss kHHfb2qKcazSF4NGAkXOM8+sWrxsIVLBsoDEduskQh2H/CFa8lenuYnw3Is2WoPEJ9Jn l8RUIqDu5m7kL66nRlm629TKOLyaZ+xFOuFUoSEiSPbmuNSpSCGIJ4ICaPIl9/wO/cKY UQRg== 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: airlied@linux.ie, Bhanusree , sean@poorly.run 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 --- v2:modified memory barrier comments appropriately 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..e574261 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(); /*Full memory barrier used before so that CLFLUSH is ordered*/ for (i = 0; i < num_pages; i++) drm_clflush_page(*pages++); - mb(); + mb(); /*Also used after CLFLUSH so that all cache is flushed*/ } #endif