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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,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 2AC6FC4742C for ; Mon, 16 Nov 2020 20:05:11 +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 DF98620E65 for ; Mon, 16 Nov 2020 20:05:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DF98620E65 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de 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 5001D6EA58; Mon, 16 Nov 2020 20:05:10 +0000 (UTC) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2F70A89C9C for ; Mon, 16 Nov 2020 20:04:46 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 49E13AEBA; Mon, 16 Nov 2020 20:04:44 +0000 (UTC) From: Thomas Zimmermann To: daniel@ffwll.ch, airlied@linux.ie, sam@ravnborg.org, mripard@kernel.org, maarten.lankhorst@linux.intel.com, christian.koenig@amd.com Subject: [PATCH 08/10] drm/fb-helper: Restore damage area upon errors Date: Mon, 16 Nov 2020 21:04:35 +0100 Message-Id: <20201116200437.17977-9-tzimmermann@suse.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201116200437.17977-1-tzimmermann@suse.de> References: <20201116200437.17977-1-tzimmermann@suse.de> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Zimmermann , dri-devel@lists.freedesktop.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" If the damage handling fails, restore the damage area. The next invocation of the damage worker will then perform the update. Signed-off-by: Thomas Zimmermann --- drivers/gpu/drm/drm_fb_helper.c | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 2e1a335bafd2..13b65dad2ca8 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -431,11 +431,28 @@ static void drm_fb_helper_damage_work(struct work_struct *work) if (helper->buffer) { ret = drm_fb_helper_damage_blit(helper, &clip_copy); if (ret) - return; + goto err; } - if (helper->fb->funcs->dirty) - helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, &clip_copy, 1); + if (helper->fb->funcs->dirty) { + ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, &clip_copy, 1); + if (ret) + goto err; + } + + return; + +err: + /* + * Restore damage clip rectangle on errors. Next instance of damage + * worker will perform the update. + */ + spin_lock_irqsave(&helper->damage_lock, flags); + clip->x1 = min_t(u32, clip->x1, clip_copy.x1); + clip->y1 = min_t(u32, clip->y1, clip_copy.y1); + clip->x2 = max_t(u32, clip->x2, clip_copy.x2); + clip->y2 = max_t(u32, clip->y2, clip_copy.y2); + spin_unlock_irqrestore(&helper->damage_lock, flags); } /** -- 2.29.2 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel