Re: [PATCH] add PCI ROMs to sysfs

[Jon Smirl]

--- Matthew Wilcox <willy@xxxxxxxxxx> wrote:
> On Wed, Aug 18, 2004 at 11:13:10AM -0700, Jon Smirl wrote:
> > I haven't received any comments on pci-sysfs-rom-17.patch. Is
> everyone
> > asleep or is it ready to be pushed upstream? I'm still not sure
> that
> > anyone has tried it on a ppc machine.
> 
> I'm now working on something that could use the ROM mapping facility.
> However, I know that I only need the first 64k of the ROM.  Would it
> be reasonable to check the value passed in to pci_map_rom() in *size
> and only automatically set it if it's 0?

pci_map_rom doesn't really consume much in the way of system resources.
64K vs 128KB is just a little address space usage that is freed as soon
as you do pci_unmap_rom().

pci_map_rom_copy() is the only call that consumes significant resource.

=====
Jon Smirl
jonsmirl@xxxxxxxxx


		
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