linux-kernel - Re: [alsa-devel] [PATCH] ALSA - protect Dreamcast PCM driver (AICA) from G2 bus effects

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Message-ID: <s5hfy0825ud.wl%tiwai@suse.de>
Date:	Thu, 18 Oct 2007 10:18:50 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	"Adrian McMenamin" <lkmladrian@...il.com>
Cc:	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
	linuxsh-dev@...ts.sourceforge.net
Subject: Re: [alsa-devel] [PATCH] ALSA - protect Dreamcast PCM driver (AICA)	from G2 bus effects

At Wed, 17 Oct 2007 21:30:28 +0100,
Adrian McMenamin wrote:
> 
> The G2 bus on the SEGA Dreamcast connects both the maple peripheral
> bus and the AICA sound memory. DMA requests on one can cause the other
> to timeout on memory operations.
> 
> This patch prevents maple interrupts from causing hiccoughs in the
> AICA sound (maple bus code will land in 2.6.24).
> 
> There are other cleanups for this (AICA) code - but this is in effect
> a regression fix rather than a cleanup.
> 
> Signed-off-by: Adrian McMenamin <adrian@...en.demon.co.uk>

Applied to ALSA tree now.  Thanks.


Takashi
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