From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (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 8C09956B96 for ; Tue, 20 Feb 2024 05:52:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.95.11.211 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708408370; cv=none; b=EAq35zISZTd08EbMOthoWQHotyiGHtVIrjjsKN/oZxqWGfro0KZxLFPO7Mncs5z2WDAB2N0xsNueee/vmEoNpflnHGy4F+oxxWbMvsFPM6AkecrBR81roN6njqI3idB7Kzv5TMT89PEg1pN5mLCzRNqZEtmeB/PVuKI9TKmhjAQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708408370; c=relaxed/simple; bh=QGwDArMulqmomAgnLZOZXS6F9kSP8omhCh7Gh9khW/4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=K08lvC3n8/3mZY7oiiK15++bi/Ibk/MgFqrwGS3SGK2RYn1TN+ARVwbCU6C+n0hB35/klqpeZhjHwl1FvWWtMLr2ZqId/P3dZYYEfap5i2frqnWjmiKnB4bjS9JXf4NZCGIfQzuVUgOx7nOluTp5Y7HjRCFsBgvFWsvYdp2Gne4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.client-ip=213.95.11.211 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id BFAAD68AFE; Tue, 20 Feb 2024 06:52:41 +0100 (CET) Date: Tue, 20 Feb 2024 06:52:41 +0100 From: Christoph Hellwig To: Howard Yen Cc: Christoph Hellwig , m.szyprowski@samsung.com, robin.murphy@arm.com, gregkh@linuxfoundation.org, andriy.shevchenko@linux.intel.com, rafael@kernel.org, broonie@kernel.org, james@equiv.tech, james.clark@arm.com, masahiroy@kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev Subject: Re: [PATCH v3] dma-coherent: add support for multi coherent rmems per dev Message-ID: <20240220055241.GA7554@lst.de> References: <20240208152808.3712149-1-howardyen@google.com> <20240213055426.GA22451@lst.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) On Mon, Feb 19, 2024 at 07:12:18PM +0800, Howard Yen wrote: > I tried to upload the patch to support multiple coherent rmems per device > because in some system, the primary memory space for the device might > be limited, so that add multiple coherent rmems support per device to satisfy > the scenario. I'm not sure what the means. If you have non-trivial patches you really need to explain why you're doing in detail as you need to convince maintainers that it is useful.