From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Subject: Re: HPA and failed opcode was: 0x37 ? Date: Tue, 30 Jan 2007 18:07:27 +0000 Message-ID: <20070130180727.594b35d0@localhost.localdomain> References: <45BF5003.3000503@imc-berlin.de> <20070130164401.295f9913@localhost.localdomain> <45BF7658.1090204@imc-berlin.de> <20070130172629.70ad628d@localhost.localdomain> <45BF7E21.7010605@imc-berlin.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:55192 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S965656AbXA3Rze (ORCPT ); Tue, 30 Jan 2007 12:55:34 -0500 In-Reply-To: <45BF7E21.7010605@imc-berlin.de> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Steven Scholz Cc: linux-ide@vger.kernel.org > 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