From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Fri, 09 May 2003 23:20:26 +0000 Subject: Re: [Linux-ia64] [PATCH] 1/4 multi-ioport space support for 2.5 Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org >>>>> On Thu, 24 Apr 2003 16:25:26 -0600, Bjorn Helgaas said: Bjorn> 3 add support for /proc/iomem and /proc/ioports I'm suspecting this patch may be causing me some grief on a Big Sur. What happens is that the qla1280 is configured to use I/O space by default (no idea why that is the case, apart from a small buglet in reading the base address) and with the patch applied, it fails to get the range from 0x2000-0x20ff. I can work around the problem by using memory-mapped I/O. When I do that, /proc/ioports looks like this: $ cat /proc/ioports 00000000-000003af : PCI Bus 00:00 00000060-0000006f : i8042 00000170-00000177 : ide1 000001f0-000001f7 : ide0 00000376-00000376 : ide1 000003c0-000003df : vga+ 000003e0-00000cf7 : PCI Bus 00:00 000003f6-000003f6 : ide0 000003f8-000003ff : serial 00000d00-00000fff : PCI Bus 00:00 00001000-00001fff : PCI Bus 00:00 00001000-0000103f : eepro100 00001040-0000105f : uhci-hcd 00002000-00002000 : PCI Bus 00:01 00003000-0000ffff : PCI Bus 00:03 Perhaps the problem is that the reported range for Bus 00:01 is empty? Does this make any sense to you? Perhaps it's a firmware problem. --david