ARM: Perfevents: Add mode exclusion support for Krait P2
Mode exclusion allows for counting filtered by the mode
the CPU in running in.
e.g.
perf stat -e rXXX:u to count only userspace activity
perf stat -e rXXX:k to count only kernel activity
Change-Id: I6cf6035d3cfe8d3ee8534ffe130eac6e965aa899
Signed-off-by:
Ashwin Chaugule <ashwinc@codeaurora.org>
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