Re: [patch] zero-bounce highmem I/O

From: David S. Miller (davem@redhat.com)
Date: Thu Aug 16 2001 - 03:12:13 EST


   From: Grard Roudier <groudier@free.fr>
   Date: Wed, 15 Aug 2001 21:20:17 +0200 (CEST)

   The current solution consists in tampering the dma_mask in the pci_dev
   structure prior to allocating DMAable memory. Not really clean...
   Some interface that would allow to provide some masks as argument would be
   cleaner, in my opinion. Btw, the pci_set_* interface does not seem cleaner
   to me than hacking the corresponding field in the pcidev structure directly.

pci_alloc_consistent will ONLY give you 32-bit DMA memory.

This will be true both before and after my changes. Does the
IA64 gross hack behave differently?

Later,
David S. Miller
davem@redhat.com
:.˛mkabzwmb˛mbz_^nrzh&zzޗ++zfh~iz_j:+v)ߣmSy杶ii



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