Paul Mackerras ef923214a4 perf_counter: powerpc: use u64 for event codes internally
Although the perf_counter API allows 63-bit raw event codes,
internally in the powerpc back-end we had been using 32-bit
event codes.  This expands them to 64 bits so that we can add
bits for specifying threshold start/stop events and instruction
sampling modes later.

This also corrects the return value of can_go_on_limited_pmc;
we were returning an event code rather than just a 0/1 value in
some circumstances. That didn't particularly matter while event
codes were 32-bit, but now that event codes are 64-bit it
might, so this fixes it.

[ Impact: extend PowerPC perfcounter interfaces from u32 to u64 ]

Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <18955.36874.472452.353104@drongo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-05-15 16:38:55 +02:00
..
2009-01-06 15:59:10 -08:00
2009-04-01 08:59:14 -07:00
2008-08-18 21:40:03 +02:00
2008-08-04 13:18:17 +10:00
2009-03-24 11:02:59 +02:00
2009-03-24 11:02:58 +02:00
2008-11-19 16:04:58 +11:00
2008-12-21 14:21:14 +11:00
2009-04-02 01:05:32 +00:00
2009-04-07 15:18:58 +10:00
2008-11-30 11:00:15 -08:00
2008-10-15 11:31:54 +11:00
2008-10-22 22:55:20 -07:00
2008-09-06 19:30:15 +01:00
2009-04-01 08:59:16 -07:00
2008-11-19 16:04:55 +11:00
2009-03-30 22:05:12 +10:30