From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D15916AD9 for ; Thu, 9 Mar 2023 11:26:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678361216; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ZE/7iJwefnAXFkAm0lKDfvx+6HRiN8eOH8p7Wvai0wo=; b=XX357ieAPtGv0Rh0t31gJ639rZi1FlWdwLgBSID3nj+NJD10X1l2n4na2LAU7v1Xpm/1G2 uhk+kaSZcmThSWcQckbL38M0SHmEhM09fZSkEuULoNpkGPVnt/GJwbk1kEfj7P0L4xuz2j HUmPi/XDKoWwkGwYdzOkgunE+9cpwgo= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-3-pHqEEVdgNiCRqo_6tTofGA-1; Thu, 09 Mar 2023 06:26:56 -0500 X-MC-Unique: pHqEEVdgNiCRqo_6tTofGA-1 Received: by mail-wm1-f70.google.com with SMTP id l31-20020a05600c1d1f00b003e8626cdd42so544854wms.3 for ; Thu, 09 Mar 2023 03:26:55 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678361215; h=mime-version:message-id:date:references:in-reply-to:subject:cc:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ZE/7iJwefnAXFkAm0lKDfvx+6HRiN8eOH8p7Wvai0wo=; b=Cp20WnjqyPcrBzDjHkll6TjS23d2++vNWlHh0Tc09wZrkEXM/uPlfW6HJKZ+CnDwIS 80nVXC7UMOceibxwbXMtQDUQdnCbGcxRkTCWZH0wj4eSfNhOc3PjUtK5Vlok9oUxsYZT Dtaronz2T2ngR57BCVxQS2QN8tOeXFTTCoE2JdSRzDvUuedsOR55sZnCZkfX06jPcURH ODwjnOuZj+WbTQmIZXlYm1z/KEWDzk+BesD9dDy3Ot8xIKfaZW/TA+KRgG4m/7J68Rfw 6aDXHSXMi8WZ5YdnpobEpMFLm8mmG/huRn6tWEVqmiCLWLVr9OcdtNUij8q/mvjUBnPA wUxQ== X-Gm-Message-State: AO0yUKXyG8imj8rhxRNoI6tn1jR3oxERshWPvWXwxPibZo2fNCia/vzJ jvrZ/xHMIqd3C0tn8NV1sP+tzZCw1myu6sbkEi/Xb85f128li5dXnYxfwKXOSTcniZOkgc91fya CtPgxYqk0pqYv6j4LHctbDbU= X-Received: by 2002:a05:600c:19d2:b0:3e7:95ba:e1c7 with SMTP id u18-20020a05600c19d200b003e795bae1c7mr19013911wmq.32.1678361214954; Thu, 09 Mar 2023 03:26:54 -0800 (PST) X-Google-Smtp-Source: AK7set+ootXMCqEk3gOIZKrqE6NGC6vCRZefQop/jJ1mx2KmfjNSeFee8+geTPWhVxDzmhIrEN6nCQ== X-Received: by 2002:a05:600c:19d2:b0:3e7:95ba:e1c7 with SMTP id u18-20020a05600c19d200b003e795bae1c7mr19013869wmq.32.1678361214645; Thu, 09 Mar 2023 03:26:54 -0800 (PST) Received: from localhost (205.pool92-176-231.dynamic.orange.es. [92.176.231.205]) by smtp.gmail.com with ESMTPSA id 5-20020a05600c230500b003db01178b62sm2249369wmo.40.2023.03.09.03.26.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Mar 2023 03:26:54 -0800 (PST) From: Javier Martinez Canillas To: Thomas Zimmermann , maarten.lankhorst@linux.intel.com, mripard@kernel.org, airlied@gmail.com, daniel@ffwll.ch, andrew@aj.id.au, laurentiu.palcu@oss.nxp.com, l.stach@pengutronix.de, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, p.zabel@pengutronix.de, anitha.chrisanthus@intel.com, edmund.j.dea@intel.com, khilman@baylibre.com, jbrunet@baylibre.com, martin.blumenstingl@googlemail.com, alain.volmat@foss.st.com, yannick.fertre@foss.st.com, raphael.gallais-pou@foss.st.com, philippe.cornu@foss.st.com, mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com, jernej.skrabec@gmail.com, samuel@sholland.org, jyri.sarha@iki.fi, tomba@kernel.org, linus.walleij@linaro.org, hyun.kwon@xilinx.com, laurent.pinchart@ideasonboard.com Cc: dri-devel@lists.freedesktop.org, linux-aspeed@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, linux-sunxi@lists.linux.dev, Thomas Zimmermann Subject: Re: [PATCH 16/22] drm/sun4i: Use GEM DMA fbdev emulation In-Reply-To: <20230301153101.4282-17-tzimmermann@suse.de> References: <20230301153101.4282-1-tzimmermann@suse.de> <20230301153101.4282-17-tzimmermann@suse.de> Date: Thu, 09 Mar 2023 12:26:53 +0100 Message-ID: <87mt4m6u82.fsf@minerva.mail-host-address-is-not-set> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain Thomas Zimmermann writes: > Use the fbdev emulation that is optimized for DMA helpers. Avoids > possible shadow buffering and makes the code simpler. > > Signed-off-by: Thomas Zimmermann > --- Reviewed-by: Javier Martinez Canillas -- Best regards, Javier Martinez Canillas Core Platforms Red Hat