tree b410dcdbc5aee656c37951be36951130450549e7
parent aeb013772a2cc85a8d0baffd64977d2888bc781d
author Arnd Bergmann <arnd@arndb.de> 1136469929 +0000
committer Paul Mackerras <paulus@samba.org> 1136781897 +1100

[PATCH] spufs: set irq affinity for running threads

For far, all SPU triggered interrupts always end up on
the first SMT thread, which is a bad solution.

This patch implements setting the affinity to the
CPU that was running last when entering execution on
an SPU. This should result in a significant reduction
in IPI calls and better cache locality for SPE thread
specific data.

Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>