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Date:   Fri, 15 Mar 2019 02:06:52 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     John Stultz <john.stultz@linaro.org>
Cc:     lkml <linux-kernel@vger.kernel.org>,
        Laura Abbott <labbott@redhat.com>,
        Benjamin Gaignard <benjamin.gaignard@linaro.org>,
        Greg KH <gregkh@linuxfoundation.org>,
        Sumit Semwal <sumit.semwal@linaro.org>,
        Liam Mark <lmark@codeaurora.org>,
        Brian Starkey <Brian.Starkey@arm.com>,
        "Andrew F . Davis" <afd@ti.com>, Chenbo Feng <fengc@google.com>,
        Alistair Strachan <astrachan@google.com>,
        dri-devel@lists.freedesktop.org
Subject: Re: [RFC][PATCH 4/5 v2] dma-buf: heaps: Add CMA heap to dmabuf heapss
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References: <1551819273-640-1-git-send-email-john.stultz@linaro.org>
 <1551819273-640-5-git-send-email-john.stultz@linaro.org>
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On Tue, Mar 05, 2019 at 12:54:32PM -0800, John Stultz wrote:
> This adds a CMA heap, which allows userspace to allocate
> a dma-buf of contiguous memory out of a CMA region.

With my previous suggestion of DMA API usage you'd get CMA support for
free in the system one instead of all this duplicate code..