From: Grant Grundler <grundler@puffin.external.hp.com>
To: Matthew Wilcox <matthew@wil.cx>
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] request_region()
Date: Tue, 03 Apr 2001 18:25:54 -0600 [thread overview]
Message-ID: <200104040025.SAA18848@puffin.external.hp.com> (raw)
In-Reply-To: Your message of "Tue, 03 Apr 2001 17:41:56 BST." <20010403174156.U11435@parcelfarce.linux.theplanet.co.uk>
Matthew Wilcox wrote:
> i think sim700.c should be using ioremap / readX / writeX instead
> of raw_read. Is the EISA scsi really only accessible via port io?
Yes.
> I would have throught that it would be memory mapped, in which case
> there's no need to have a macro to access it.
IO Port space is memory mapped but not in a linear fashion (afaik).
My understanding is the IO port space is mapped 4 bytes per MMIO page.
grant
Grant Grundler
parisc-linux {PCI|IOMMU|SMP} hacker
+1.408.447.7253
next prev parent reply other threads:[~2001-04-04 0:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-02 23:11 [parisc-linux] request_region() Richard Hirst
2001-04-03 3:06 ` Grant Grundler
2001-04-03 9:05 ` Richard Hirst
2001-04-03 16:41 ` Matthew Wilcox
2001-04-04 0:25 ` Grant Grundler [this message]
2001-04-03 23:57 ` Grant Grundler
2001-04-04 0:10 ` Alan Cox
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