x86: UV: BAU partition-relative distribution map

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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: Cliff Wickman <cpw@sgi.com>
LKML-Reference: <E1Ltl0C-0004Ob-37@eag09.americas.sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

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Cliff Wickman 2009-04-14 10:56:48 -05:00 • committed by Ingo Molnar

parent 54c28d294c

commit 94ca8e4852

1 changed files with 16 additions and 3 deletions

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arch/x86/kernel/tlb_uv.c

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