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author | Mohan Kumar M <mohan@in.ibm.com> | 2007-06-12 14:51:57 (GMT) |
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committer | Paul Mackerras <paulus@samba.org> | 2007-06-25 07:03:31 (GMT) |
commit | 7ccb4a662462616f6be5053e26b79580e02f1529 (patch) | |
tree | 02ca012f01a5e426a17d34f68c70473941f4386a /include | |
parent | 5a26f6bbb767d7ad23311a1e81cfdd2bebefb855 (diff) | |
download | linux-fsl-qoriq-7ccb4a662462616f6be5053e26b79580e02f1529.tar.xz |
[POWERPC] Fix interrupt distribution in ppc970
In some of the PPC970 based systems, interrupt would be distributed to
offline cpus also even when booted with "maxcpus=1". So check whether
cpu online map and cpu present map are equal or not. If they are equal
default_distrib_server is used as interrupt server otherwise boot cpu
(default_server) used as interrupt server.
In addition to this, if an interrupt is assigned to a specific cpu (ie
smp affinity) and if that cpu is not online, the earlier code used to
return the default_distrib_server as interrupt server. This
introduces an additional parameter to the get_irq function, called
strict_check. Based on this parameter, if the cpu is not online
either default_distrib_server or -1 is returned.
Signed-off-by: Mohan Kumar M <mohan@in.ibm.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions