On Tue, Jun 29, 2010 at 2:50 AM, FUJITA Tomonori
<fujita.tomonori@lab.ntt.co.jp> wrote:
quoted text
> This is a resend:
>
> http://marc.info/?t=127432584100006&r=1&w=2
>
> I thought that it was merged but seems that it was lost somewhere?
>
> =
> From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> Subject: [PATCH] parisc: set ARCH_KMALLOC_MINALIGN
>
> Architectures that handle DMA-non-coherent memory need to set
> ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is DMA-safe:
> the buffer doesn't share a cache with the others.
>
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
> Cc: Kyle McMartin <kyle@mcmartin.ca>
> Cc: Helge Deller <deller@gmx.de>
> Cc: James E.J. Bottomley <jejb@parisc-linux.org>
> Cc: stable@kernel.org
> ---
>  arch/parisc/include/asm/cache.h |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
> index 45effe6..5d87f27 100644
> --- a/arch/parisc/include/asm/cache.h
> +++ b/arch/parisc/include/asm/cache.h
> @@ -22,6 +22,8 @@
>  #define L1_CACHE_SHIFT 5
>  #endif
>
> +#define ARCH_KMALLOC_MINALIGN  L1_CACHE_BYTES
> +
>  #ifndef __ASSEMBLY__
>
>  #define L1_CACHE_ALIGN(x)       (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))

Looks like you can send a patch to kill L1_CACHE_ALIGN too. :)

quoted text
> --
> 1.6.5
>
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