linux-kernel - Re: [PATCH] dmaengine: use phys_addr

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Message-ID: <CAMuHMdV8a1W1MyJPanUNBzaiNsL96JYzetBVSiZoC3=eKXzo1Q@mail.gmail.com>
Date:	Tue, 15 Dec 2015 11:48:24 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Vinod Koul <vinod.koul@...el.com>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Lee Jones <lee.jones@...aro.org>, dmaengine@...r.kernel.org,
	Linux-sh list <linux-sh@...r.kernel.org>
Subject: Re: [PATCH] dmaengine: use phys_addr_t for slave configuration

Hi Vinod,

On Fri, Jul 10, 2015 at 10:14 AM, Vinod Koul <vinod.koul@...el.com> wrote:
> On Wed, Jul 08, 2015 at 12:12:52PM +0200, Geert Uytterhoeven wrote:
>> On Fri, Apr 26, 2013 at 11:06 AM, Linus Walleij
>> <linus.walleij@...aro.org> wrote:
>> > The documentation already says these are physical addresses, and
>> > we have concluded that any translation into the DMA address space
>> > needs to reside in the dmaengine driver, so change the type of
>> > the passed arguments.
>> >
>> > Cc: Arnd Bergmann <arnd@...db.de>
>> > Cc: Lee Jones <lee.jones@...aro.org>
>> > Cc: Vinod Koul <vinod.koul@...el.com>
>> > Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
>>
>> What's the status of this one, which has been acked by Lee and Arnd?
> Looks to have slipped thru. I will redo it

Ping?

> --
> ~Vinod
>
>>
>> Thanks!
>>
>> > ---
>> >  include/linux/dmaengine.h | 4 ++--
>> >  1 file changed, 2 insertions(+), 2 deletions(-)
>> >
>> > diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
>> > index 91ac8da..681df5f9 100644
>> > --- a/include/linux/dmaengine.h
>> > +++ b/include/linux/dmaengine.h
>> > @@ -361,8 +361,8 @@ enum dma_slave_buswidth {
>> >   */
>> >  struct dma_slave_config {
>> >         enum dma_transfer_direction direction;
>> > -       dma_addr_t src_addr;
>> > -       dma_addr_t dst_addr;
>> > +       phys_addr_t src_addr;
>> > +       phys_addr_t dst_addr;
>> >         enum dma_slave_buswidth src_addr_width;
>> >         enum dma_slave_buswidth dst_addr_width;
>> >         u32 src_maxburst;
>> > --
>> > 1.8.1.4

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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