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To: Adrian Chadd <adrian@freebsd.org>
Subject: Re: newcons fb driver
In-reply-to: <CAJ-Vmo=jCGUxXs_GBoCm581wTouozWE=AQ3x1wBKYM_J3_dGrg@mail.gmail.com>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
References: <20140302085511.6354f9ac@zhabar.gateway.2wire.net>
 <CAJ-Vmo=jCGUxXs_GBoCm581wTouozWE=AQ3x1wBKYM_J3_dGrg@mail.gmail.com>
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Date: Mon, 03 Mar 2014 06:52:15 +0000
Message-ID: <42130.1393829535@critter.freebsd.dk>
Cc: Justin Hibbits <jhibbits@freebsd.org>,
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In message <CAJ-Vmo=jCGUxXs_GBoCm581wTouozWE=AQ3x1wBKYM_J3_dGrg@mail.gmail.com>
, Adrian Chadd writes:

>.. i'm pretty sure there was a reason for why it's done in byte sizes.
>Maybe speak to phk?

Buggy video hardware, which does not do larger writes correctly,
the most recent one being an Intel Laptop, but I can't remember which.

At the very least, byte writes needs to be a boot-time option.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.