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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E0E8DC77B7A for ; Wed, 7 Jun 2023 08:48:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239432AbjFGIsl (ORCPT ); Wed, 7 Jun 2023 04:48:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49212 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239192AbjFGIsi (ORCPT ); Wed, 7 Jun 2023 04:48:38 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E15A71725 for ; Wed, 7 Jun 2023 01:47:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1686127671; 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=zDz69+oFYWXX1BmnVAcHgBw7nzJBGz38VxVt62J1FoQ=; b=RuEld8eDXoU2w3kOBIdcX5OySp2s3PWlgYi9CReAGTXYH9VwxCmZ79DBzRdD9o6td1aMqh 71kaTIR2B7c5qoWcByAJVhgC3xA8KktytlcafXb3TC+Mvm9x7LOdq/SieKu6ysTvaoAPLS jm6nePnjpDlBM1ddR6ej/wB2UQB0Slg= Received: from mail-wr1-f72.google.com (mail-wr1-f72.google.com [209.85.221.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-617-NVYJIZItOXSJMD2m3iZaFg-1; Wed, 07 Jun 2023 04:47:49 -0400 X-MC-Unique: NVYJIZItOXSJMD2m3iZaFg-1 Received: by mail-wr1-f72.google.com with SMTP id ffacd0b85a97d-30c2e9541b9so3874918f8f.0 for ; Wed, 07 Jun 2023 01:47:49 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686127668; x=1688719668; 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=zDz69+oFYWXX1BmnVAcHgBw7nzJBGz38VxVt62J1FoQ=; b=eZMLPO5h4VfbBV0kKGj9x3YW5qEnAUEymcy0Jqly9ziAFwA19mHkwf2NvM008Bqco1 VD54CpNALtLoZM0Tkns37xWjHiUpt1NKv70SAtlIwQ86oCzLmd1V3MWqHZXsrTx/A095 ARVVk/vKduhNWO//zwf78BAC68RRTYusO+tekbMTaULzGrBFua3cKfWNo89teei0wGqu BOck5sXjDVJ2vx+LZ5h136CX8EcQHsykVuFW+h9Lk4Tc9ucvHSYu+qDTQT+7CDbK+Egd btntxbmU66ZgXI1Kn9pXS1ftovGfZ2cSRO9Bd8U6BHVFmlSHlhtydvTMNuBXkV87tWri 4MQw== X-Gm-Message-State: AC+VfDy5AJOMS/o7zBxn5wzATryAMYSUxIEdSPBcUGNX9RlZkuC8AnwQ P2R8hqgY/EfTM/VhxMGuObRO+MARPyJQsLWId9sb8hrHvZbKStMWgWZT9I9YGx7/FMmxZ7jWbBT a0AoJlSJNNNVslzDpaqdySvQ= X-Received: by 2002:a5d:45c6:0:b0:30a:e495:2544 with SMTP id b6-20020a5d45c6000000b0030ae4952544mr3492878wrs.23.1686127668651; Wed, 07 Jun 2023 01:47:48 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ4HyIAuVGnzEFE0Y0RegoBmQPKta0aQoYnV+QnWWgwUwsjGZISbQLbaBPCUULIqP84aItfwIg== X-Received: by 2002:a5d:45c6:0:b0:30a:e495:2544 with SMTP id b6-20020a5d45c6000000b0030ae4952544mr3492862wrs.23.1686127668360; Wed, 07 Jun 2023 01:47:48 -0700 (PDT) Received: from localhost (205.pool92-176-231.dynamic.orange.es. [92.176.231.205]) by smtp.gmail.com with ESMTPSA id n1-20020a5d6601000000b0030e5b1fffc3sm1029071wru.9.2023.06.07.01.47.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Jun 2023 01:47:48 -0700 (PDT) From: Javier Martinez Canillas To: Thomas Zimmermann , daniel@ffwll.ch, sam@ravnborg.org, deller@gmx.de, geert+renesas@glider.be, lee@kernel.org, daniel.thompson@linaro.org, jingoohan1@gmail.com Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sh@vger.kernel.org, linux-omap@vger.kernel.org, linux-staging@lists.linux.dev, Thomas Zimmermann Subject: Re: [PATCH 09/30] fbdev/ep93xx-fb: Alloc DMA memory from hardware device In-Reply-To: <20230605144812.15241-10-tzimmermann@suse.de> References: <20230605144812.15241-1-tzimmermann@suse.de> <20230605144812.15241-10-tzimmermann@suse.de> Date: Wed, 07 Jun 2023 10:47:47 +0200 Message-ID: <87o7lrfyks.fsf@minerva.mail-host-address-is-not-set> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Thomas Zimmermann writes: > Pass the hardware device to the DMA helpers dma_alloc_wc(), dma_mmap_wc() > and dma_free_coherent(). The fbdev device that is currently being used is > a software device and does not provide DMA memory. > > Signed-off-by: Thomas Zimmermann > --- Reviewed-by: Javier Martinez Canillas -- Best regards, Javier Martinez Canillas Core Platforms Red Hat