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Date:   Tue, 24 Mar 2020 08:52:25 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     Alexey Kardashevskiy <aik@ozlabs.ru>
Cc:     Christoph Hellwig <hch@lst.de>, iommu@lists.linux-foundation.org,
        linuxppc-dev@lists.ozlabs.org, Lu Baolu <baolu.lu@linux.intel.com>,
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        Robin Murphy <robin.murphy@arm.com>,
        linux-kernel@vger.kernel.org,
        "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Subject: Re: [PATCH 1/2] dma-mapping: add a dma_ops_bypass flag to struct
 device
Message-ID: <20200324075225.GI23447@lst.de>
References: <20200320141640.366360-1-hch@lst.de> <20200320141640.366360-2-hch@lst.de> <2f31d0dd-aa7e-8b76-c8a1-5759fda5afc9@ozlabs.ru> <20200323083705.GA31245@lst.de> <37ce1b7e-264d-292d-32b1-093b24b3525c@ozlabs.ru> <20200323172014.GA31269@lst.de> <d4bf6058-aa77-d0bc-8196-f4c27fb21b74@ozlabs.ru>
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On Tue, Mar 24, 2020 at 02:37:59PM +1100, Alexey Kardashevskiy wrote:
> dma_alloc_direct() and dma_map_direct() do the same thing now which is
> good, did I miss anything else?

dma_alloc_direct looks at coherent_dma_mask, dma_map_direct looks
at dma_mask.