From: Alan <alan@lxorguk.ukuu.org.uk>
To: Steven Scholz <steven.scholz@imc-berlin.de>
Cc: linux-ide@vger.kernel.org
Subject: Re: HPA and failed opcode was: 0x37 ?
Date: Tue, 30 Jan 2007 18:07:27 +0000 [thread overview]
Message-ID: <20070130180727.594b35d0@localhost.localdomain> (raw)
In-Reply-To: <45BF7E21.7010605@imc-berlin.de>
> Hmm. Don't think so. Since the use of ioremap() I think the MMU treats the
> area as none-cacheable, right?
Thats only the first half of the story. If you don't decode byte level
fetches in the FPGA or the code is doing something like
read 16 bit value
shift 8
return half
for 8 bit reads you'll get wrong answers.
Alan
next prev parent reply other threads:[~2007-01-30 17:55 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-30 14:02 HPA and failed opcode was: 0x37 ? Steven Scholz
2007-01-30 14:07 ` Steven Scholz
2007-01-30 15:44 ` Eric D. Mudama
2007-01-30 15:50 ` Eric D. Mudama
2007-01-30 15:54 ` Steven Scholz
2007-01-30 15:53 ` Steven Scholz
2007-01-30 16:44 ` Alan
2007-01-30 16:46 ` Steven Scholz
2007-01-30 17:26 ` Alan
2007-01-30 17:19 ` Steven Scholz
2007-01-30 18:07 ` Alan [this message]
2007-01-30 18:04 ` Steven Scholz
2007-01-30 18:23 ` Eric D. Mudama
2007-01-30 18:32 ` Sergei Shtylyov
2007-01-30 19:56 ` Eric D. Mudama
2007-01-30 20:01 ` Eric D. Mudama
2007-01-31 8:29 ` Steven Scholz
2007-01-31 12:54 ` Sergei Shtylyov
2007-01-31 13:08 ` Steven Scholz
2007-01-31 13:12 ` Sergei Shtylyov
2007-01-31 13:38 ` Steven Scholz
2007-01-31 9:51 ` Steven Scholz
2007-01-31 12:50 ` Sergei Shtylyov
2007-01-31 13:04 ` Steven Scholz
2007-01-31 13:33 ` Alan
2007-01-31 13:26 ` Steven Scholz
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