From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomasz Figa Subject: Re: linux-next on Chromebook2: DRM failing to allocate Date: Tue, 10 Jun 2014 20:56:04 +0200 Message-ID: <539754C4.60008@gmail.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-wg0-f45.google.com ([74.125.82.45]:35885 "EHLO mail-wg0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752132AbaFJS4X (ORCPT ); Tue, 10 Jun 2014 14:56:23 -0400 Received: by mail-wg0-f45.google.com with SMTP id l18so1873187wgh.28 for ; Tue, 10 Jun 2014 11:56:22 -0700 (PDT) In-Reply-To: Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: =?UTF-8?B?U3TDqXBoYW5lIE1hcmNoZXNpbg==?= , Kevin Hilman Cc: "linux-samsung-soc@vger.kernel.org" , Sean Paul , Daniel Kurtz , Inki Dae , naveenkrishna.ch@gmail.com, "linaro-kernel@lists.linaro.org" , Tushar Behera , Tomasz Figa On 10.06.2014 20:04, St=C3=A9phane Marchesin wrote: > On Tue, Jun 10, 2014 at 10:56 AM, Kevin Hilman w= rote: >> I'm trying to get the latest linux-next working on my Chromebook2 >> (it's booting to a serial console) and am now trying to get the >> display working (at least for a frambuffer console.) >> >> Since the display nodes seem to be present in the exynos5800-peach-p= i >> DTS, I tried enabling DRM and it's failing to allocate memory (log >> below[1] >> >> Is there some additional memory setup/allocations I should be doing? >> maybe with CMA? >=20 > Probably not CMA, but maybe you don't have the iommu enabled? >=20 It should work without IOMMU as well. We're using Exynos DRM on Exynos4 without IOMMU and with CMA instead and it works fine. Best regards, Tomasz