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authorJesse Larrew <jlarrew@linux.vnet.ibm.com>2010-12-01 12:31:15 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-12-09 15:36:29 +1100
commit9eff1a38407c051273fe1a20f03f8155bd32de35 (patch)
treeebda1a3986c78cf7746676b3a8ee154301e2019d /arch/mips
parent4dfa9c474859629a2c4a3f8d29804d6a6c994908 (diff)
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op-kernel-dev-9eff1a38407c051273fe1a20f03f8155bd32de35.tar.gz
powerpc/pseries: Poll VPA for topology changes and update NUMA maps
This patch sets a timer during boot that will periodically poll the associativity change counters in the VPA. When a change in associativity is detected, it retrieves the new associativity domain information via the H_HOME_NODE_ASSOCIATIVITY hcall and updates the NUMA node maps and sysfs entries accordingly. Note that since the ibm,associativity device tree property does not exist on configurations with both NUMA and SPLPAR enabled, no device tree updates are necessary. Signed-off-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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