From: Matthew Wilcox <matthew@wil.cx>
To: Richard Hirst <rhirst@linuxcare.com>
Cc: Grant Grundler <grundler@cup.hp.com>, parisc-linux@thepuffingroup.com
Subject: Re: [parisc-linux] a500.out16
Date: Thu, 2 Nov 2000 12:01:58 +0000 [thread overview]
Message-ID: <20001102120158.B3632@parcelfarce.linux.theplanet.co.uk> (raw)
In-Reply-To: <20001102113047.J32715@linuxcare.com>; from rhirst@linuxcare.com on Thu, Nov 02, 2000 at 11:30:47AM +0000
On Thu, Nov 02, 2000 at 11:30:47AM +0000, Richard Hirst wrote:
> > Note sym53c8xx.c doesn't seem to bother with request_mem_region(), so
> > maybe request_mem_region() is just broken.
>
> It is broken because of the following line in kernel/resource.c:
>
> struct resource iomem_resource = { "PCI mem", 0x00000000, 0xffffffff, IORESOURCE_MEM };
>
> 'end' needs to be rather higher than 0xffffffff on 64 bit. I changed it to
>
> struct resource iomem_resource = { "PCI mem", 0x00000000, ~0, IORESOURCE_MEM };
>
> and it works. I havn't committed that 'fix' though.
Probably just as well... the pci_consistent interfaces were designed
partly to stop 32-bit PCI cards having to do dual-address-cycle on
machines with an IOMMU. if you can, this card should get mapped below
the 32-bit boundary.
--
Revolutions do not require corporate support.
next prev parent reply other threads:[~2000-11-02 12:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-11-02 8:21 [parisc-linux] a500.out16 Grant Grundler
2000-11-02 10:43 ` Richard Hirst
2000-11-02 11:30 ` Richard Hirst
2000-11-02 12:01 ` Matthew Wilcox [this message]
2000-11-02 16:42 ` Grant Grundler
2000-11-02 12:07 ` Richard Hirst
2000-11-02 10:48 ` Richard Hirst
2000-11-02 16:12 ` Grant Grundler
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