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=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_NEOMUTT autolearn=ham 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 733D4C43381 for ; Thu, 7 Mar 2019 12:14:33 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 405D520675 for ; Thu, 7 Mar 2019 12:14:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="u3EwiN1a" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 405D520675 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type:Cc: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=CRWnmEBQQQ6zl4z9mLqnW/XkBNbSs1dqKiajMibojak=; b=u3EwiN1amRZ5mNAaq5hia9hWh P0uc/lh0kRdhIBkLaglvClYlOpAjUM+C56filRtqyvemUsO01LUvtGcobX+Kk7F1wxZXCZ8me7qE9 t8EQOkqLpwoecIwwW0lRgwTI7Nur3sCkiGcP2IwSOt3dMynii4HMEKAcA759bVoTAjwQpVxD4PEL+ rId/x/wdWmaL4PbWHe07SIKPUlwJlTxN8cr5eZ/QMmX6bZVlnDc4AwHgCZbI86bjtFNUS2uaMRIi0 w2SjqVTQvsKFWdpqXypUFdmZshDuI+walZdIUOz6GbADsU98f7UE0yRupIUb0G6FYi83UXnV+tWtf Vjf7T+vJQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h1ruv-000140-2B; Thu, 07 Mar 2019 12:14:29 +0000 Received: from relay3-d.mail.gandi.net ([217.70.183.195]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h1rur-00010z-Fw for linux-arm-kernel@lists.infradead.org; Thu, 07 Mar 2019 12:14:27 +0000 X-Originating-IP: 90.88.150.179 Received: from localhost (aaubervilliers-681-1-31-179.w90-88.abo.wanadoo.fr [90.88.150.179]) (Authenticated sender: maxime.ripard@bootlin.com) by relay3-d.mail.gandi.net (Postfix) with ESMTPSA id D09B460002; Thu, 7 Mar 2019 12:14:11 +0000 (UTC) Date: Thu, 7 Mar 2019 13:14:11 +0100 From: Maxime Ripard To: Eric Anholt Subject: Re: [PATCH] drm/vc4: Use 16bpp by default for the fbdev buffer Message-ID: <20190307121411.jzbyri2of2x2uau7@flea> References: <20190306140245.21973-1-maxime.ripard@bootlin.com> MIME-Version: 1.0 In-Reply-To: <20190306140245.21973-1-maxime.ripard@bootlin.com> User-Agent: NeoMutt/20180716 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190307_041425_675234_A36333D0 X-CRM114-Status: GOOD ( 12.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: eben@raspberrypi.org, Maarten Lankhorst , dri-devel@lists.freedesktop.org, Paul Kocialkowski , Sean Paul , Thomas Petazzoni , linux-arm-kernel@lists.infradead.org Content-Type: multipart/mixed; boundary="===============0317177716827715653==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============0317177716827715653== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="7tbwmvqrpo3xqrds" Content-Disposition: inline --7tbwmvqrpo3xqrds Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Mar 06, 2019 at 03:02:45PM +0100, Maxime Ripard wrote: > The preferred bpp for the fbdev emulation buffer has been 32 so far, which > means that by default we will allocate an 8MB buffer with a 1920x1080 > resolution. >=20 > Worse this memory will be allocated from the CMA pool, and will never be > freed even if we don't use the fbdev emulation. Therefore, reducing it is= a > big deal, and switching to 16bpp by default will gain us around 4MB at > 1920x1080, while keeping decent color depth. And users still have the > option to switch to 32bpp using the kernel command line. >=20 > Signed-off-by: Maxime Ripard Applied with Eric and Paul Reviewed-by Maxime --=20 Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com --7tbwmvqrpo3xqrds Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXIELEwAKCRDj7w1vZxhR xc46AQDzQ7XzL2T9gDhZs/r6+n6d4BpsrkFLKfJpdbqzyq/9AgEAuj01hd3sQlhQ ge9/w7PPyQyNJ4mK4nvvyjI+IzbahAA= =AgSE -----END PGP SIGNATURE----- --7tbwmvqrpo3xqrds-- --===============0317177716827715653== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============0317177716827715653==--