On Dec 2, 2007 12:48 PM, Steve Reinhardt <[EMAIL PROTECTED]> wrote:
>
> One fix would be to break the functional read into smaller chunks...
> 8-byte chunks would solve this particular problem, but in reality
> there's no reason it couldn't be a byte store, so you'd need to do
> 1-byte reads to really fix the problem. Unfortunately that could be
> really slow for large accesses, but maybe it doesn't happen often
> enough to matter.
Just to be concrete, here's a quick-and-dirty fix (I think):
--- a/src/mem/port.cc Sun Dec 02 01:46:38 2007 -0800
+++ b/src/mem/port.cc Sun Dec 02 15:49:46 2007 -0500
@@ -117,7 +117,7 @@ Port::blobHelper(Addr addr, uint8_t *p,
{
Request req;
- for (ChunkGenerator gen(addr, size, peerBlockSize());
+ for (ChunkGenerator gen(addr, size, 1);
!gen.done(); gen.next()) {
req.setPhys(gen.addr(), gen.size(), 0);
Packet pkt(&req, cmd, Packet::Broadcast);
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