[PATCH 3.12 145/170] powerpc/perf: Never program book3s PMCs with values >= 0x80000000

From: Anton Blanchard 3.12-stable review patch. If anyone has any objections, please let me know. === commit f56029410a13cae3652d1f34788045c40a13ffc7 upstream. We are seeing a lot of PMU warnings on POWER8: Can't find PMC that caused IRQ Looking closer, the active PMC is 0

[PATCH 3.12 145/170] powerpc/perf: Never program book3s PMCs with values = 0x80000000

From: Anton Blanchard an...@samba.org 3.12-stable review patch. If anyone has any objections, please let me know. === commit f56029410a13cae3652d1f34788045c40a13ffc7 upstream. We are seeing a lot of PMU warnings on POWER8: Can't find PMC that caused IRQ Looking closer, the