Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752491AbaBJNwT (ORCPT ); Mon, 10 Feb 2014 08:52:19 -0500 Received: from mga02.intel.com ([134.134.136.20]:6819 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751018AbaBJNwS (ORCPT ); Mon, 10 Feb 2014 08:52:18 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.95,818,1384329600"; d="scan'208";a="452787566" Date: Mon, 10 Feb 2014 15:52:12 +0200 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: One Thousand Gnomes Cc: sagar.a.kamble@intel.com, daniel.vetter@ffwll.ch, intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, vijay.a.purushothaman@intel.com, tomi.valkeinen@ti.com, dri-devel@lists.freedesktop.org, gregkh@linuxfoundation.org, joe@perches.com, airlied@redhat.com Subject: Re: [PATCH v4 00/11] Enabling 180 degree rotation for sprite and crtc planes Message-ID: <20140210135212.GN3891@intel.com> References: <1391780716-21896-1-git-send-email-sagar.a.kamble@intel.com> <20140210104130.7e7c3c93@alan.etchedpixels.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20140210104130.7e7c3c93@alan.etchedpixels.co.uk> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Feb 10, 2014 at 10:41:30AM +0000, One Thousand Gnomes wrote: > On Fri, 7 Feb 2014 19:15:05 +0530 > sagar.a.kamble@intel.com wrote: > > > From: Sagar Kamble > > > > These patches will enable 180 degree rotation for CRTC and Sprite planes. > > Changelog: > > 1. drm/i915: Add 180 degree primary plane rotation support > > Addressed review comments for CRTC rotation from FBC, page flip, CRTC active/ > > inactive perspective. > > Does this mean it should also handle horizontal mirroring in > hardware (180? rotate, and scan lines backwards combined) ? Our hardware doesn't support mirroring (h or v). Well, unless you count h+v mirroring since that's 180 degree rotation :) Anyways IIRC the old video overlay (present on gen2-4) was the only plane to ever support mirroring on Intel hardware. With all other planes we're limited to 0 and 180 degree rotation. -- Ville Syrj?l? Intel OTC -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/