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Subject: Re: [discuss] Re: x86_64: 2.6.14-rc4 swiotlb broken
From: Alex Williamson <alex.williamson@hp.com>
To: Ravikiran G Thirumalai <kiran@scalex86.org>
Cc: Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>,
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On Tue, 2005-10-18 at 16:22 -0700, Ravikiran G Thirumalai wrote:

> Hope the following works.   Using __alloc_bootmem_node now with a hard coded
> goal to avoid 16MB DMA zone.  It is ugly :( and hope it works this time
> <fingers crossed>. 

   Nope, it still gives me memory above 4GB.  If I change goal to 0x0 it
works.  One nit, shouldn't IS_LOW_AGES() be more like this:

#define IS_LOWPAGES(paddr, size) ((paddr+size-1) < 0x100000000UL)

Minor optimization not checking the start, but a 64MB swiotlb starting
at 4GB-64MB should be found as ok.  Thanks,

	Alex


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