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Date: Mon, 13 Jun 2005 10:28:40 +0100
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To: =?ISO-8859-1?Q?Remy_B=F6hmer?= <remy.bohmer@gmail.com>
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Subject: Re: [PATCH] bigphysarea for 2.6.10 en 2.6.11
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Remy Böhmer wrote:
> I have pulled the bigphysarea patch (as posted by Nick Martin for
> kernel 2.6.9) towards the kernels 2.6.10 and 2.6.11.
> Maybe there is somebody out there who can use it.
> 
> (it only suits the i386 kernel, I have not done this job for other platforms.)
> First the 2.6.10 version is listed below, after this the 2.6.11 version
> 
> Have fun with it!
> 
> Remy
> 
> linux-2.6.10.bigphys/mm/bigphysarea.c
> --- linux-2.6.10.orig/mm/bigphysarea.c   Wed Dec 31 19:00:00 1969
> +++ linux-2.6.10.bigphys/mm/bigphysarea.c        Mon Nov 15 15:49:01 2004
> +static
> +int __init bigphysarea_setup(char *str)
> +{
> +       int par;
> +       if (get_option(&str,&par)) {
> +               bigphysarea_pages = par;
> +               // Alloc the memory
> +               bigphysarea =
> alloc_bootmem_low_pages(bigphysarea_pages<<PAGE_SHIFT);
> +               if (!bigphysarea) {
> +                       printk(KERN_CRIT "bigphysarea: not enough
> memory for %d pages\n",bigphysarea_pages);
> +                       return -ENOMEM;
> +               }
> +
> +               // register the resource for it
> +               mem_resource.start = bigphysarea;

That should be:   mem_resource.start = virt_to_phys(bigphysarea);
Otherwise you could get a collision?

-- 
Pádraig Brady - http://www.pixelbeat.org
--