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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 32F47C433DB for ; Mon, 29 Mar 2021 16:15:36 +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 DFB4861960 for ; Mon, 29 Mar 2021 16:15:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DFB4861960 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=crapouillou.net 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 53FE06E438; Mon, 29 Mar 2021 16:15:35 +0000 (UTC) Received: from aposti.net (aposti.net [89.234.176.197]) by gabe.freedesktop.org (Postfix) with ESMTPS id B5FD96E438 for ; Mon, 29 Mar 2021 16:15:33 +0000 (UTC) Date: Mon, 29 Mar 2021 17:15:06 +0100 From: Paul Cercueil Subject: Re: [PATCH] drm: DON'T require each CRTC to have a unique primary plane To: Simon Ser Message-Id: <6TNQQQ.CQL1KN8NARCK@crapouillou.net> In-Reply-To: References: <20210327112214.10252-1-paul@crapouillou.net> <20210329140731.tvkfxic4fu47v3rz@gilmour> <20210329153541.a3yil2aqsrtf2nlj@gilmour> <25MQQQ.YYKN0GE2YPZN1@crapouillou.net> 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 , David Airlie , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, od@zcrc.me, Maxime Ripard , stable@vger.kernel.org Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" CgpMZSBsdW4uIDI5IG1hcnMgMjAyMSDDoCAxNTo0MiwgU2ltb24gU2VyIDxjb250YWN0QGVtZXJz aW9uLmZyPiBhIMOpY3JpdCAKOgo+IE9uIE1vbmRheSwgTWFyY2ggMjl0aCwgMjAyMSBhdCA1OjM5 IFBNLCBQYXVsIENlcmN1ZWlsIAo+IDxwYXVsQGNyYXBvdWlsbG91Lm5ldD4gd3JvdGU6Cj4gCj4+ ICBPaywgSSByZWFkIHRoYXQgYXMgImFsbCBkcml2ZXJzIHNob3VsZCBwcm92aWRlIEFUIExFQVNU IG9uZSBwcmltYXJ5Cj4+ICBwbGFuZSBwZXIgQ1JUQyIsIGFuZCBub3QgYXMgImFsbCBkcml2ZXJz IHNob3VsZCBwcm92aWRlIE9ORSBBTkQgT05MWQo+PiAgT05FIHByaW1hcnkgcGxhbmUgcGVyIENS VEMiLiBNeSBiYWQuCj4gCj4gWWVhaCwgaXQncyBhIGxpdHRsZSBjb21wbGljYXRlZCB0byBkb2N1 bWVudCwgYmVjYXVzZSBpdCdzIHBvc3NpYmxlIGZvcgo+IGEgcHJpbWFyeSBwbGFuZSB0byBiZSBj b21wYXRpYmxlIHdpdGggbXVsdGlwbGUgQ1JUQ3PigKYgV2UgdHJpZWQgdG8KPiBpbXByb3ZlIHRo aXMgWzFdIHJlY2VudGx5Lgo+IAo+IFsxXTogCj4gaHR0cHM6Ly9kcmkuZnJlZWRlc2t0b3Aub3Jn L2RvY3MvZHJtL2dwdS9kcm0ta21zLmh0bWwjcGxhbmUtYWJzdHJhY3Rpb24KCk9rLCB0aGF0IGlz IGRlZmluaXRlbHkgbXVjaCBjbGVhcmVyIDopCgotUGF1bAoKCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRl dmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9t YWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo= 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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 652C2C433E0 for ; Mon, 29 Mar 2021 16:16:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 34B1C61981 for ; Mon, 29 Mar 2021 16:16:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229630AbhC2QP6 convert rfc822-to-8bit (ORCPT ); Mon, 29 Mar 2021 12:15:58 -0400 Received: from aposti.net ([89.234.176.197]:40632 "EHLO aposti.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229515AbhC2QPe (ORCPT ); Mon, 29 Mar 2021 12:15:34 -0400 Date: Mon, 29 Mar 2021 17:15:06 +0100 From: Paul Cercueil Subject: Re: [PATCH] drm: DON'T require each CRTC to have a unique primary plane To: Simon Ser Cc: Maxime Ripard , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , od@zcrc.me, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Message-Id: <6TNQQQ.CQL1KN8NARCK@crapouillou.net> In-Reply-To: References: <20210327112214.10252-1-paul@crapouillou.net> <20210329140731.tvkfxic4fu47v3rz@gilmour> <20210329153541.a3yil2aqsrtf2nlj@gilmour> <25MQQQ.YYKN0GE2YPZN1@crapouillou.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le lun. 29 mars 2021 à 15:42, Simon Ser a écrit : > On Monday, March 29th, 2021 at 5:39 PM, Paul Cercueil > wrote: > >> Ok, I read that as "all drivers should provide AT LEAST one primary >> plane per CRTC", and not as "all drivers should provide ONE AND ONLY >> ONE primary plane per CRTC". My bad. > > Yeah, it's a little complicated to document, because it's possible for > a primary plane to be compatible with multiple CRTCs… We tried to > improve this [1] recently. > > [1]: > https://dri.freedesktop.org/docs/drm/gpu/drm-kms.html#plane-abstraction Ok, that is definitely much clearer :) -Paul