From: Sascha Hauer <s.hauer@pengutronix.de>
To: Franck Jullien <franck.jullien@gmail.com>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH] nios2: Fix DMA functions when CPU has no dcache
Date: Wed, 19 Sep 2012 19:31:57 +0200 [thread overview]
Message-ID: <20120919173157.GK6180@pengutronix.de> (raw)
In-Reply-To: <1347795495-15619-1-git-send-email-franck.jullien@gmail.com>
On Sun, Sep 16, 2012 at 01:38:15PM +0200, Franck Jullien wrote:
> Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Applied, thanks
Sascha
> ---
> arch/nios2/include/asm/dma-mapping.h | 14 +++++++++++++-
> 1 files changed, 13 insertions(+), 1 deletions(-)
>
> diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
> index 9819a97..620c207 100644
> --- a/arch/nios2/include/asm/dma-mapping.h
> +++ b/arch/nios2/include/asm/dma-mapping.h
> @@ -6,7 +6,6 @@
>
> #include <asm/cache.h>
>
> -
> /* dma_alloc_coherent() return cache-line aligned allocation which is mapped
> * to uncached io region.
> *
> @@ -14,6 +13,7 @@
> * 0x80000000 for nommu, 0xe0000000 for mmu
> */
>
> +#if (DCACHE_SIZE != 0)
> static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
> {
> void *addr = malloc(len + DCACHE_LINE_SIZE);
> @@ -25,11 +25,23 @@ static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
> ~(DCACHE_LINE_SIZE - 1) & ~(IO_REGION_BASE);
> return (void *)(*handle | IO_REGION_BASE);
> }
> +#else
> +static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
> +{
> + void *addr = malloc(len);
> + if (!addr)
> + return 0;
> + *handle = (unsigned long)addr;
> + return (void *)(*handle | IO_REGION_BASE);
> +}
> +#endif
>
> +#if (DCACHE_SIZE != 0)
> #define dma_alloc dma_alloc
> static inline void *dma_alloc(size_t size)
> {
> return xmemalign(DCACHE_LINE_SIZE, ALIGN(size, DCACHE_LINE_SIZE));
> }
> +#endif
>
> #endif /* __ASM_NIOS2_DMA_MAPPING_H */
> --
> 1.7.1
>
>
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
>
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
prev parent reply other threads:[~2012-09-19 17:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-16 11:38 Franck Jullien
2012-09-19 17:31 ` Sascha Hauer [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120919173157.GK6180@pengutronix.de \
--to=s.hauer@pengutronix.de \
--cc=barebox@lists.infradead.org \
--cc=franck.jullien@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox