linux-kernel - Re: [RESEND][PATCH v8 0/5] DMA-BUF Heaps (destaging ION)

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Message-ID: <20191014090729.lwusl5zxa32a7uua@DESKTOP-E1NTVVP.localdomain>
Date:   Mon, 14 Oct 2019 09:07:29 +0000
From:   Brian Starkey <Brian.Starkey@....com>
To:     "Andrew F. Davis" <afd@...com>
CC:     Ayan Halder <Ayan.Halder@....com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Sudipto Paul <Sudipto.Paul@....com>,
        Vincent Donnefort <Vincent.Donnefort@....com>,
        Chenbo Feng <fengc@...gle.com>,
        Alistair Strachan <astrachan@...gle.com>,
        Liam Mark <lmark@...eaurora.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Christoph Hellwig <hch@...radead.org>,
        DRI mailing list <dri-devel@...ts.freedesktop.org>,
        Hridya Valsaraju <hridya@...gle.com>, nd <nd@....com>,
        Pratik Patel <pratikp@...eaurora.org>
Subject: Re: [RESEND][PATCH v8 0/5] DMA-BUF Heaps (destaging ION)

Hi Andrew,

On Wed, Oct 09, 2019 at 02:27:15PM -0400, Andrew F. Davis wrote:
> The CMA driver that registers these nodes will have to be expanded to
> export them using this framework as needed. We do something similar to
> export SRAM nodes:
> 
> https://lkml.org/lkml/2019/3/21/575
> 
> Unlike the system/default-cma driver which can be centralized in the
> tree, these extra exporters will probably live out in other subsystems
> and so are added in later steps.
> 
> Andrew

I was under the impression that the "cma_for_each_area" loop in patch
4 would do that (add_cma_heaps). Is it not the case?

Thanks,
-Brian