linux-kernel - Re: [PATCH v10 1/5] dma-buf: Add dma-buf heaps framework

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Message-ID: <ad064efe-4d86-3b81-ace2-152e90c72e94@infradead.org>
Date:   Mon, 7 Oct 2019 14:21:29 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     John Stultz <john.stultz@...aro.org>,
        lkml <linux-kernel@...r.kernel.org>
Cc:     "Andrew F. Davis" <afd@...com>, Laura Abbott <labbott@...hat.com>,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Liam Mark <lmark@...eaurora.org>,
        Pratik Patel <pratikp@...eaurora.org>,
        Brian Starkey <Brian.Starkey@....com>,
        Vincent Donnefort <Vincent.Donnefort@....com>,
        Sudipto Paul <Sudipto.Paul@....com>,
        Christoph Hellwig <hch@...radead.org>,
        Chenbo Feng <fengc@...gle.com>,
        Alistair Strachan <astrachan@...gle.com>,
        Hridya Valsaraju <hridya@...gle.com>,
        Hillf Danton <hdanton@...a.com>,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v10 1/5] dma-buf: Add dma-buf heaps framework

On 10/7/19 2:18 PM, John Stultz wrote:
> diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig
> index a23b6752d11a..6e9c7c4d7447 100644
> --- a/drivers/dma-buf/Kconfig
> +++ b/drivers/dma-buf/Kconfig
> @@ -44,4 +44,13 @@ config DMABUF_SELFTESTS
>  	default n
>  	depends on DMA_SHARED_BUFFER
>  
> +menuconfig DMABUF_HEAPS
> +	bool "DMA-BUF Userland Memory Heaps"
> +	select DMA_SHARED_BUFFER
> +	help
> +	  Choose this option to enable the DMA-BUF userland memory heaps,

	                                                           heaps.

> +	  this options creates per heap chardevs in /dev/dma_heap/ which

	  This

> +	  allows userspace to use to allocate dma-bufs that can be shared

??	                   to allocate & use

> +	  between drivers.
> +
>  endmenu


-- 
~Randy