From: Michael Buesch <mb@bu3sch.de>
To: Larry Finger <Larry.Finger@lwfinger.net>
Subject: Re: [PATCH RESEND] b43: implement baseband init for LP-PHY <= rev1
Date: Mon, 3 Aug 2009 23:16:30 +0200
Cc: =?iso-8859-1?q?G=E1bor_Stefanik?= <netrolller.3d@gmail.com>,
	bcm43xx-dev@lists.berlios.de,
	linux-wireless <linux-wireless@vger.kernel.org>
References: <4A7610AE.5000908@gmail.com> <69e28c910908031341n439384b4ned41f2983ab1de29@mail.gmail.com> <4A774F76.6020207@lwfinger.net>
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On Monday 03 August 2009 22:58:30 Larry Finger wrote:
> G?bor states it the way the Broadcom routine is written. They have the
> flags divided into 3 16-bit values - high, middle, and low. The values
> are kept in arrays - one set is for the current band and the other is
> for both bands. When the routine is entered, the appropriate quantity
> is saved in a temporary, then the array value is maskset. Only when
> the resulting value changes is the shared memory location updated. The
> implication is that shared memory writes are expensive. Is that true?

No. I think it has other reasons.

-- 
Greetings, Michael.