[Cbe-oss-dev] [PATCH 0:5] updated context switch patches

[Luke Browning]

This is an updated patch set that is meant to replace my previous fixes
for spu context switching. There is still something wrong with the
matrix_mul test.  I run 4 instances in parallel.  Occasionally, one of
the testcases hangs on the last iteration.  Also, the barrier testcase
now seems to be working.  I believe that patch 4 is the key change for
it.

patch 1 - fixed the saving of the mfc control register when in the
suspended state [Updated]

patch 2 - fixed the setting of the pending context switch flag 

patch 3 - fixed interrupt routine [Updated]

patch 4 - fixed concurrent delivery of class 0 and 1 exceptions [new]

patch 5 - handle faults while context switching pending flag is set
[new]

Note this last patch does not solve all of the problems in this area.
The patch that Ben and Jeremy are working on is still needed.

Luke