Only one request may be on the dma interface at a time,
authorNathan Binkert <binkertn@umich.edu>
Mon, 23 Feb 2004 07:49:09 +0000 (02:49 -0500)
committerNathan Binkert <binkertn@umich.edu>
Mon, 23 Feb 2004 07:49:09 +0000 (02:49 -0500)
so add some states to indicate that the dma read/write
hasn't issued yet, and add some support to reissue the
request when the interface becomes unblocked.

--HG--
extra : convert_revision : 448695a8eb2e9f98554769f3165df1f796adf44a


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