[POWERPC] Fix CPU hotplug when using the SLB shadow buffer
authorMichael Neuling <mikey@neuling.org>
Fri, 11 Jan 2008 03:02:47 +0000 (14:02 +1100)
committerPaul Mackerras <paulus@samba.org>
Fri, 11 Jan 2008 05:33:55 +0000 (16:33 +1100)
commit473980a99316c0e788bca50996375a2815124ce1
tree5fb9d5de6ee75299b32de0e0b66f5a868864c38f
parent6f4347c969674ed45de7d08d4b26d6326a95b959
[POWERPC] Fix CPU hotplug when using the SLB shadow buffer

Before we register the SLB shadow buffer, we need to invalidate the
entries in the buffer, otherwise we can end up stale entries from when
we previously offlined the CPU.

This does this invalidate as well as unregistering the buffer with
PHYP before we offline the cpu.  Tested and fixes crashes seen on
970MP (thanks to tonyb) and POWER5.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
arch/powerpc/mm/slb.c
arch/powerpc/platforms/pseries/hotplug-cpu.c
arch/powerpc/platforms/pseries/lpar.c
include/asm-powerpc/mmu-hash64.h