linux/arch/powerpc/include
Scott Wood 82d86de25b powerpc/e6500: Make TLB lock recursive
Once special level interrupts are supported, we may take nested TLB
misses -- so allow the same thread to acquire the lock recursively.

The lock will not be effective against the nested TLB miss handler
trying to write the same entry as the interrupted TLB miss handler, but
that's also a problem on non-threaded CPUs that lack TLB write
conditional.  This will be addressed in the patch that enables crit/mc
support by invalidating the TLB on return from level exceptions.

Signed-off-by: Scott Wood <scottwood@freescale.com>
2014-03-19 19:57:13 -05:00
..
asm powerpc/e6500: Make TLB lock recursive 2014-03-19 19:57:13 -05:00
uapi/asm Second batch of KVM updates. Some minor x86 fixes, 2014-01-31 08:37:32 -08:00