From patchwork Fri Sep 28 00:30:12 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Deepak Singh Rawat X-Patchwork-Id: 10618777 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6FD6114BD for ; Fri, 28 Sep 2018 00:31:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 650922B22E for ; Fri, 28 Sep 2018 00:31:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 598682B262; Fri, 28 Sep 2018 00:31:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id E9F292B22E for ; Fri, 28 Sep 2018 00:31:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EC6A86E646; Fri, 28 Sep 2018 00:31:13 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from EX13-EDG-OU-001.vmware.com (ex13-edg-ou-001.vmware.com [208.91.0.189]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0CF1C6E632 for ; Fri, 28 Sep 2018 00:30:57 +0000 (UTC) Received: from sc9-mailhost3.vmware.com (10.113.161.73) by EX13-EDG-OU-001.vmware.com (10.113.208.155) with Microsoft SMTP Server id 15.0.1156.6; Thu, 27 Sep 2018 17:30:55 -0700 Received: from ubuntu.localdomain (promb-2n-dhcp77.eng.vmware.com [10.20.88.77]) by sc9-mailhost3.vmware.com (Postfix) with ESMTP id 4F398408E1; Thu, 27 Sep 2018 17:30:56 -0700 (PDT) From: Deepak Rawat To: , , , Subject: [PATCH 10/18] drm/vmwgfx: Updated comment for stdu plane update Date: Thu, 27 Sep 2018 17:30:12 -0700 Message-ID: <20180928003020.1737-10-drawat@vmware.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180928003020.1737-1-drawat@vmware.com> References: <20180928003020.1737-1-drawat@vmware.com> MIME-Version: 1.0 Received-SPF: None (EX13-EDG-OU-001.vmware.com: drawat@vmware.com does not designate permitted sender hosts) 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: Deepak Rawat Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Update the comment to sync with code. Signed-off-by: Deepak Rawat --- drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 22 ++++------------------ 1 file changed, 4 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c index 3537f5b48b98..ce077522b2d6 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c @@ -1682,7 +1682,6 @@ static int vmw_stdu_plane_update_surface(struct vmw_private *dev_priv, /** * vmw_stdu_primary_plane_atomic_update - formally switches STDU to new plane - * * @plane: display plane * @old_state: Only used to get crtc info * @@ -1702,10 +1701,7 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane, struct vmw_private *dev_priv; int ret; - /* - * We cannot really fail this function, so if we do, then output an - * error and maintain consistent atomic state. - */ + /* If somehow gets a device error, maintain consistent atomic state */ if (crtc && plane->state->fb) { struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(plane->state->fb); @@ -1734,12 +1730,7 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane, stdu = vmw_crtc_to_stdu(crtc); dev_priv = vmw_priv(crtc->dev); - /* - * When disabling a plane, CRTC and FB should always be NULL - * together, otherwise it's an error. - * Here primary plane is being disable so blank the screen - * target display unit, if not already done. - */ + /* Blank STDU when fb and crtc are NULL */ if (!stdu->defined) return; @@ -1754,20 +1745,15 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane, return; } + /* In case of error vblank event is sent in vmw_du_crtc_atomic_flush */ event = crtc->state->event; - /* - * In case of failure and other cases, vblank event will be sent in - * vmw_du_crtc_atomic_flush. - */ if (event && (ret == 0)) { struct vmw_fence_obj *fence = NULL; struct drm_file *file_priv = event->base.file_priv; vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL); - /* - * If fence is NULL, then already sync. - */ + /* If fence is NULL, then already sync. */ if (fence) { ret = vmw_event_fence_action_queue( file_priv, fence, &event->base,