From: Christoph Hellwig <hch@lst.de>
To: Rob Landley <rob@landley.net>
Cc: Christoph Hellwig <hch@lst.de>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Rich Felker <dalias@libc.org>,
linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: dma_declare_coherent_memory and SuperH
Date: Mon, 28 Jun 2021 15:49:55 +0200 [thread overview]
Message-ID: <20210628134955.GA22559@lst.de> (raw)
In-Reply-To: <4d6b7c35-f2fa-b476-b814-598a812770e6@landley.net>
On Mon, Jun 28, 2021 at 09:04:19AM -0500, Rob Landley wrote:
> > Well, the replacement is to declare the device memory carveouts in the
> > Device Tree.
>
> Your plan is to eliminate the ability for non-device-tree boards to do DMA?
No. My hope is to kill dma_declarare_coherent, an API for board
support files to declare device-specific regions to be used for
coherent DMA.
next prev parent reply other threads:[~2021-06-28 13:50 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-23 13:32 dma_declare_coherent_memory and SuperH Christoph Hellwig
2021-06-23 13:35 ` Geert Uytterhoeven
2021-06-23 13:36 ` John Paul Adrian Glaubitz
2021-06-26 22:36 ` Rob Landley
2021-06-26 22:38 ` Rob Landley
2021-06-28 13:38 ` Christoph Hellwig
2021-06-28 14:04 ` Rob Landley
2021-06-28 13:49 ` Christoph Hellwig [this message]
2021-06-28 14:29 ` Rob Landley
2021-06-28 16:33 ` Christoph Hellwig
2021-06-28 19:12 ` Geert Uytterhoeven
2021-06-28 19:47 ` Rob Landley
2021-06-27 3:08 ` Daniel Palmer
2021-06-27 8:33 ` John Paul Adrian Glaubitz
2021-06-28 8:57 ` Geert Uytterhoeven
2021-06-28 9:29 ` Daniel Palmer
2021-06-28 10:00 ` Geert Uytterhoeven
2021-06-28 14:29 ` Geert Uytterhoeven
2021-06-28 16:29 ` Christoph Hellwig
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