From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <SRS0=tlbf=RB=vger.kernel.org=linux-kernel-owner@kernel.org>
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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,
	MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT 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 3F227C43381
	for <linux-kernel@archiver.kernel.org>; Tue, 26 Feb 2019 20:02:02 +0000 (UTC)
Received: from vger.kernel.org (vger.kernel.org [209.132.180.67])
	by mail.kernel.org (Postfix) with ESMTP id 0D8972186A
	for <linux-kernel@archiver.kernel.org>; Tue, 26 Feb 2019 20:02:02 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1729017AbfBZUCA (ORCPT
        <rfc822;linux-kernel@archiver.kernel.org>);
        Tue, 26 Feb 2019 15:02:00 -0500
Received: from muru.com ([72.249.23.125]:40852 "EHLO muru.com"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1727704AbfBZUCA (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Tue, 26 Feb 2019 15:02:00 -0500
Received: from atomide.com (localhost [127.0.0.1])
        by muru.com (Postfix) with ESMTPS id F39E980CD;
        Tue, 26 Feb 2019 20:02:09 +0000 (UTC)
Date:   Tue, 26 Feb 2019 12:01:55 -0800
From:   Tony Lindgren <tony@atomide.com>
To:     Nicolin Chen <nicoleotsuka@gmail.com>,
        Christoph Hellwig <hch@lst.de>
Cc:     Marek Szyprowski <m.szyprowski@samsung.com>,
        Tomi Valkeinen <tomi.valkeinen@ti.com>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Sebastian Reichel <sre@kernel.org>,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-omap@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Regression in Linux next with dma cma changes
Message-ID: <20190226200155.GE39872@atomide.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.11.2 (2019-01-07)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Hi,

Looks like commit d222e42e8816 ("dma-contiguous: do not allocate a
single page from CMA area") caused a regression at least for
omap dss where we now get the following error on init:

omapdss_dispc 58001000.dispc:
dispc_errata_i734_wa_init: dma_alloc_writecombine failed

Any ideas what might be going wrong?

Regards,

Tony