From: Ralf Baechle <ralf@linux-mips.org>
To: naveen yadav <yad.naveen@gmail.com>
Cc: linux-mips@linux-mips.org
Subject: Re: kmalloc issue on MIPS target
Date: Wed, 18 Aug 2010 15:43:01 +0100 [thread overview]
Message-ID: <20100818144301.GC2849@linux-mips.org> (raw)
In-Reply-To: <AANLkTin8LLH3DkX38B93Ap0mmz4hb9e=cEo9U3ZKmavr@mail.gmail.com>
On Wed, Aug 18, 2010 at 07:56:16PM +0530, naveen yadav wrote:
> I will give more info.
>
> CONFIG_MIPS_L1_CACHE_SHIFT=5
>
> CONFIG_DMA_NONCOHERENT=y
>
> mips 34kc is processor
>
> and File we are using is arch/mips/include/asm/mach-generic/kmalloc.h
>
> #ifndef __ASM_MACH_GENERIC_KMALLOC_H
> #define __ASM_MACH_GENERIC_KMALLOC_H
>
>
> #ifndef CONFIG_DMA_COHERENT
> /*
> * Total overkill for most systems but need as a safe default.
> * Set this one if any device in the system might do non-coherent DMA.
> */
> #define ARCH_KMALLOC_MINALIGN 128
> #endif
>
> #endif /* __ASM_MACH_GENERIC_KMALLOC_H */
>
>
> So shall we make value ARCH_KMALLOC_MINALIGN from 128 to 32. is
> there any problem ?
No, that's just what you should do. You do that by putting a file
that defines ARCH_KMALLOC_MINALIGN into your platforms's
arch/mips/include/asm/mach-<yourplatform>/kmalloc.h just like the ip32
file from your original posting.
Ralf
next prev parent reply other threads:[~2010-08-18 14:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-18 12:37 kmalloc issue on MIPS target naveen yadav
2010-08-18 12:44 ` naveen yadav
2010-08-18 13:33 ` Ralf Baechle
2010-08-18 14:26 ` naveen yadav
2010-08-18 14:43 ` Ralf Baechle [this message]
2010-08-18 15:22 ` naveen yadav
2010-08-18 16:09 ` Sergei Shtylyov
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