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  1. 17 4月, 2009 1 次提交
    • C
      x86: UV BAU distribution and payload MMRs · 4ea3c51d
      由 Cliff Wickman 提交于 
      This patch correctly sets BAU memory mapped registers to point
to the sending activation descriptor table and target payload table.

The "Broadcast Assist Unit" is used for TLB shootdown in UV.

The memory mapped registers that point to sending and receiving
memory structures contain node numbers.

In one case the __pa() function did not provide the node id of
memory on blade zero in configurations where that id is nonzero.
In another case, it was assumed that memory was allocated on
the local node.  That assumption is not true in a configuration
in which the node has no memory.

Tested on the UV hardware simulator.

[ Impact: fix possible runtime crash due to incorrect TLB logic ]
Signed-off-by: NCliff Wickman <cpw@sgi.com>
LKML-Reference: <E1LuR5Z-0007An-B8@eag09.americas.sgi.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      4ea3c51d
  3. 15 4月, 2009 1 次提交
    • C
      x86: UV: BAU partition-relative distribution map · 94ca8e48
      由 Cliff Wickman 提交于 
      This patch enables each partition's BAU distribution bit map
to be partition-relative.

The distribution bitmap had been constructed assuming 0 as the base
node number.  That construct would not have allowed a total system of
greater than 256 nodes.
It also corrects an error that occurred when the first blade's nasid
was not zero.  That nasid was stored as the base node.
The base node number gets added by hardware to the node numbers implied
in the distribution bitmap, resulting in invalid target nasids.

Tested on the UV hardware simulator.
Signed-off-by: NCliff Wickman <cpw@sgi.com>
LKML-Reference: <E1Ltl0C-0004Ob-37@eag09.americas.sgi.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      94ca8e48
  5. 08 4月, 2009 2 次提交
  7. 04 4月, 2009 4 次提交
  9. 03 4月, 2009 32 次提交