From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout.gmx.net (mout.gmx.net [212.227.17.20]) (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 CA199101F2; Sun, 17 Mar 2024 12:38:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.227.17.20 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710679129; cv=none; b=S1APLIXKEliOZ1v/8ICPz9Lki3HdUXKmJI7s4+mWwqOl1IuMCvrxiYsk7xHDe7pTP6P1B+w1yBqVk3yhlNrmyjEggiQrsQVMIrneaL/XYGuBwdnvxrkfSZ2hAoGdQ/gyg4nfM/iD7tUsRqX5FIdJQI9OmtX9nacNoOrxOjIKyi0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710679129; c=relaxed/simple; bh=iSBPOsdjtX7UbRvVNMVGHDzbS7W5NKYFCaEOK/NTW3s=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=LtEBXj3sFjo7p4od8yZeaCWfi+i9odJPZjnsgtH5ZkoTxNq52yUzrxMei2dc9+hBAjxJ1zXAw9flC5zqnGryycqrSmsAYfvjwO5dwtj92eNCzULw/OuN9dIdnUkbpB9PgR0fnYE7hCbFmo0MGAOHJCTOzCU2Cbp07X4o/J2MXtU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gmx.net; spf=pass smtp.mailfrom=gmx.net; dkim=pass (2048-bit key) header.d=gmx.net header.i=wahrenst@gmx.net header.b=ay5j6jZ+; arc=none smtp.client-ip=212.227.17.20 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gmx.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmx.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmx.net header.i=wahrenst@gmx.net header.b="ay5j6jZ+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.net; s=s31663417; t=1710679106; x=1711283906; i=wahrenst@gmx.net; bh=zfe3aPmvxcJ7/kLQ88HcrCYxkLZiaMT4IF+coNia9Mk=; h=X-UI-Sender-Class:Date:Subject:To:Cc:References:From: In-Reply-To; b=ay5j6jZ+HPqaVK8ONwzbm/BT5XzKbP7cPO0zB8OU6HwnWypPNWOgihganLfHmcnh BRxwwvn5DHwwMk9SEMXiUtiPL5Z4lfLyjncMyh9HktR0UVA16Gc2wCFZvVrSuEXFJ H6mDNYzLFT943OaAh5sfTfUrxGFHX9PWQ5Hv3ncA/qbUW3pjbqYyW+CvG6PJbqn89 +nP+DY+G8gDE+mkjVnEGcdXId7v2dRIl4qyExmwDPkMnMXIlIYm/n8hQL9pKxPScC Bz2Tc+4qaIQ1S5clTGtOcC4u4i/dIvIAZOOVdORqktVjGcb3CDYVfsM5A6zRT4ajW ZUm1HrwZIOvzn8W4bw== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from [192.168.1.167] ([37.4.248.43]) by mail.gmx.net (mrgmx104 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MzQgC-1qqRuM2JAe-00vNaw; Sun, 17 Mar 2024 13:38:26 +0100 Message-ID: <82eb2b49-639d-48ca-a035-c3d250c251c4@gmx.net> Date: Sun, 17 Mar 2024 13:38:25 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 14/15] dmaengine: bcm2835: Add BCM2711 40-bit DMA support Content-Language: en-US To: Andrea della Porta , Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Ray Jui , Scott Branden , Broadcom internal kernel review list , Saenz Julienne , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dave.stevenson@raspberrypi.com Cc: Phil Elwell , Maxime Ripard , Dom Cobley References: <8e4dceada017ea4804d7dac16c2a4974807a2c01.1710226514.git.andrea.porta@suse.com> From: Stefan Wahren In-Reply-To: <8e4dceada017ea4804d7dac16c2a4974807a2c01.1710226514.git.andrea.porta@suse.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:0mueHzFAPCkdqgs2qk2n8y4iViR+SDKNxy1sUQ8kq8+HlPXpAoQ QU3NjkcwjxzoG4h7kKj9/LW4v+9Qzkw+gxCK1G5LZpZCTAnGJl60QNJr3piZzK8qDBIiiOP T5FQkWyp1KeO2pwsY7NTahQQwkd3lbyeD5ULaC1dowFuQsG9uQ3HPonkrHIONCCcWIgaa9L lPoIOBw0CHKVaZ/h3baTw== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:ZQ0qbhhdjmU=;I5bO9d7ISGYLSnxOrvhHBCLrWyH IehRiPd8+jXNtMtVAL0SoKublmvY8g3Qjs/+rnXxmECWAhgrvr8R2L0Z9ap/t87FTmB+KOz9R H9FufJOMmxTc1oYSIsTrcqhBM9MHbyl4m+W0aAmtIduH/1kJd0vWDtCO6y/PSd1A07AiU22OO 9ecxlAxEZmlyGY9PXELL+QikGxrLouLbhANVzELC2RHoh99AA6E9NE6ZsVaYjfmxhqUK3ZUqv mlVwUQqrS0iBiNUuvV89LnPfo5n0opxEEoVUP9y5KTe7hsL+2HQ/H2hUJOlUMX+jWLQUGR4bh uQTXDN752ccdUQ/EMJ+W9xz2hNtKpi5Wvmz/We9hBvxSPp6H14x18yc6iLfWK8dHfiB3Fjdwy wZZRDIUL5HfDhk1Ufz7QGmSOs/CeyzRw5zT34pknbFkA8BxcVywad3PL5+vNwM2odJ1NR+/o3 VbI+7pS3H+l68TQjJpmoPMOENcofkSutm/crCEtp3prElBtN+ffUCFdnXoTBUzH3wRBJKXho0 6csneHQrEtzNuNCXRIZiluDc86dipdKkCNFbtmWKREyn0DOwKOMfePcVvIWYJhb1dNZ0VWV+O lhQMobE0b2FtT/n5doxAHnMLZ6L8hbrMDJlH/+j/ViydJ0sNOXrh/Dcdf6gQ1UOjh8YMA8zin xnuOQazvNFeqSDZPsLmq7Avmt1OUk9L1Py0uhz8+iSSe2Uv2tsJftPEReDmFGkjZqDkSU9Isp f4TbfWQdGu5SYVyJjDxnAF6uBy3ymPCEnEE/Ffcdr5ppMaHqGos/xPghXyLrSwjKUtl4Ej3Rz +yx8NWYqfiMB/lPTZkhlIatgXKj9acUbSDlWvXvi00/Uo= Hi Andrea, Am 13.03.24 um 15:08 schrieb Andrea della Porta: > BCM2711 has 4 DMA channels with a 40-bit address range, allowing them > to access the full 4GB of memory on a Pi 4. Assume every channel is capa= ble > of 40-bit address range. > > Originally-by: Phil Elwell > Originally-by: Maxime Ripard > Originally-by: Stefan Wahren > Signed-off-by: Andrea della Porta > --- > drivers/dma/bcm2835-dma.c | 553 ++++++++++++++++++++++++++++++++------ > 1 file changed, 466 insertions(+), 87 deletions(-) this patch contains a lot of changes (including style fixes). It would be better to split this more for a better understanding.