tree 96f0e95f0472e909dde39b3e1afe505a53398d2e
parent a9a5cda06922545ed7540cf5ed7e5ad6b80851d9
author Catalin Udma <catalin.udma@freescale.com> 1370463728 -0500
committer Scott Wood <scottwood@freescale.com> 1375918683 -0500

powerpc/perf: increase the perf HW events to 6

This change is required after the e6500 perf support has been added.
There are 6 counters in e6500 core instead of 4 in e500 core and
the MAX_HWEVENTS counter should be changed accordingly from 4 to 6.
Added also runtime check for counters overflow.

Signed-off-by: Catalin Udma <catalin.udma@freescale.com>
Signed-off-by: Lijun Pan <Lijun.Pan@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>