| commit | cdcc520d7b73445c3552a70786afed9a2b22c010 | [log] [tgz] |
|---|---|---|
| author | Chris Snook <csnook@redhat.com> | Thu Sep 20 15:57:15 2007 -0400 |
| committer | David S. Miller <davem@sunset.davemloft.net> | Wed Oct 10 16:53:49 2007 -0700 |
| tree | 948eb73c7ca53c27736151739d99655e909e5b63 | |
| parent | 01faccbf866195831af202de59f37e29467a3d74 [diff] |
atl1: explain 32-bit DMA restriction Document the fact that atl1 uses a single shared register for the high 32 bits of 64-bit DMA addresses, making 64-bit DMA more trouble than it's worth. Signed-off-by: Chris Snook <csnook@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>