Re: [PATCH] (2.4.x bk) efi_memmap_walk_uc

From: David Mosberger <davidm_at_napali.hpl.hp.com>
Date: 2003-07-25 11:15:42
>>>>> On Mon, 21 Jul 2003 17:43:54 -0700, Christopher Wedgwood <cw@sgi.com> said:

  Chris> Hi, On SN2 we have a 'fetchop' driver which does various
  Chris> magical things with uncached memory (atomic operations within
  Chris> or across partitions).

  Chris> To support this we have efi_memmap_walk_uc defined in a very
  Chris> similar way to efi_memmap_walk.

  Chris> How do people feel about merging this in the generic code
  Chris> (rather than hiding it away in the driver or something more
  Chris> complex like abstraction and changes to the current efi
  Chris> code)?

  Chris> I'd also like to see a version of this in 2.5.x.

I really would like to see the code that's using efi_memmap_walk_uc()
first.

Also, a check like this:

  Chris> if (md->attribute == EFI_MEMORY_UC)

is almost certainly wrong (md->attribute is a bitmap).

	--david
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Received on Thu Jul 24 21:15:58 2003

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