Re: PCI DMA to small buffers on cache-incoherent arch

From: David S. Miller (
Date: Mon Jun 10 2002 - 23:21:35 EST

   From: Roland Dreier <>
   Date: 10 Jun 2002 21:04:30 -0700

   That's fine but there are drivers (USB, etc) doing
           struct something {
                   int field1;
                   char dma_buffer[SMALLER_THAN_CACHE_LINE];
                   int field2;
           struct something *dev = kmalloc(sizeof *dev, GFP_KERNEL);
   Do they have to change to
How about allocating struct something using pci_pool?
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This archive was generated by hypermail 2b29 : Sat Jun 15 2002 - 22:00:20 EST