From mboxrd@z Thu Jan  1 00:00:00 1970
From: "David S. Miller" <davem@redhat.com>
Date: Fri, 16 May 2003 07:53:45 +0000
Subject: Re: [Linux-ia64] Re: 64 Bits DMA Addresses for Alloc Consistent
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   From: Jeremy Higdon <jeremy@sgi.com>
   Date: Fri, 16 May 2003 00:48:12 -0700
   
   Isn't that what dma_cache_wback_inv does?

That function is not part of the DMA api, and no portable
driver should use this dma_cache_wback_inv() thing.