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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-02-04 14:33:54 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-02-04 14:33:54 +1100 |
| commit | efec959f63de850fbd2442189f7dfc9c38efe251 (patch) | |
| tree | 63824395c5ddb427cbcd115f975154b09ebb1334 /arch/powerpc/platforms | |
| parent | 28bb9ee13aa0ee4c57dc3568f539cc84920b43aa (diff) | |
powerpc/pseries: Pass more accurate number of supported cores to firmware
Updated variant of a patch by Joel Schopp.
The field containing the number of supported cores which we pass to
firmware via the ibm,client-architecture call was set by a previous
patch statically as high as is possible (NR_CPUS).
However, that value isn't quite right for a system that supports
multiple threads per core, thus permitting the firmware to assign
more cores to a Linux partition than it can really cope with.
This patch improves it by using the device-tree to determine the
number of threads supported by the processors in order to adjust
the value passed to firmware.
Signed-off-by: Joel Schopp <jschopp@austin.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms')
0 files changed, 0 insertions, 0 deletions