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
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=20100818144301.GC2849@linux-mips.org \
--to=ralf@linux-mips.org \
--cc=linux-mips@linux-mips.org \
--cc=yad.naveen@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