From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [RFC][PATCH 4/5 v2] dma-buf: heaps: Add CMA heap to dmabuf heapss
Date: Fri, 15 Mar 2019 02:06:52 -0700
Message-ID: <20190315090652.GE4470@infradead.org>
References: <1551819273-640-1-git-send-email-john.stultz@linaro.org>
 <1551819273-640-5-git-send-email-john.stultz@linaro.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Return-path: <linux-kernel-owner@vger.kernel.org>
Content-Disposition: inline
In-Reply-To: <1551819273-640-5-git-send-email-john.stultz@linaro.org>
Sender: linux-kernel-owner@vger.kernel.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
List-Id: dri-devel@lists.freedesktop.org

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..