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

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Message-ID: <20150710081411.GF836@localhost>
Date:	Fri, 10 Jul 2015 13:44:11 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
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

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

-- 
~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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