From: Ralf Baechle <ralf@linux-mips.org>
To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: geert@linux-m68k.org, jsun@mvista.com, linux-mips@linux-mips.org
Subject: Re: semaphore woes in 2.6, 32bit
Date: Tue, 11 May 2004 16:05:07 +0200 [thread overview]
Message-ID: <20040511140507.GA32577@linux-mips.org> (raw)
In-Reply-To: <20040511.225305.55510293.anemo@mba.ocn.ne.jp>
On Tue, May 11, 2004 at 10:53:05PM +0900, Atsushi Nemoto wrote:
> >> I see. Thank you for pointing out it. I must learn 2.6 DMA API
> >> quickly ...
>
> ralf> This also applies to the 2.4 PCI DMA API.
>
> But 2.4 PCI DMA API does not have dma_get_cache_alignment() (or
> equivalent), or am I missing something?
No, you don't; that was a problem in the 2.4 DMA API which got fixed
in 2.5. For 2.4 using L1_CACHE_BYTES from <asm/cache.h> is a reasonable
alternative.
Ralf
prev parent reply other threads:[~2004-05-11 14:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-08 1:10 semaphore woes in 2.6, 32bit Jun Sun
2004-05-08 7:18 ` Ralf Baechle
2004-05-09 5:48 ` Jun Sun
2004-05-09 9:09 ` Geert Uytterhoeven
2004-05-09 12:57 ` Ralf Baechle
2004-05-09 13:56 ` Atsushi Nemoto
2004-05-09 16:48 ` Ralf Baechle
2004-05-10 13:28 ` Atsushi Nemoto
2004-05-10 14:06 ` Ralf Baechle
2004-05-11 13:53 ` Atsushi Nemoto
2004-05-11 14:05 ` Ralf Baechle [this message]
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