From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754018AbcIJDMc (ORCPT ); Fri, 9 Sep 2016 23:12:32 -0400 Received: from regular1.263xmail.com ([211.150.99.131]:43184 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750760AbcIJDMb (ORCPT ); Fri, 9 Sep 2016 23:12:31 -0400 X-263anti-spam: KSV:0;BIG:0;ABS:1;DNS:0;ATT:0;SPF:S; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 1 X-SKE-CHECKED: 1 X-ADDR-CHECKED4: 1 X-RL-SENDER: mark.yao@rock-chips.com X-FST-TO: linux-kernel@vger.kernel.org X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: mark.yao@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 Subject: Re: [PATCH] drm/rockchip: vop: support afbc format for rk3399 vop To: David Airlie , Heiko Stuebner , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org References: <1473474544-16248-3-git-send-email-mark.yao@rock-chips.com> <1473476852-25707-1-git-send-email-mark.yao@rock-chips.com> From: Mark yao Message-ID: <57D37A1A.6050500@rock-chips.com> Date: Sat, 10 Sep 2016 11:12:26 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <1473476852-25707-1-git-send-email-mark.yao@rock-chips.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Sorry, wrong title on this mail, ignore this mail. I had resent it. On 2016年09月10日 11:07, Mark Yao wrote: > Rk3399 vop big can support one afbc decoder, the afbc decoder > can select which overlay window use it. > > on vop hardware, we call afbc decoder as afbdc. > > afbdc window has some limit: > 1, not support offset on source buffer. > 2, if feed non-afbc buffer to afbc decoder, afbc decoder hardware > would die, we need take care of using it. > > AFBC is a compressed format, means lower bandwidth consume, > it's useful to improve performance. > > Signed-off-by: Mark Yao > --- -- Ｍark Yao