perfcounters: IRQ and NMI support on AMD CPUs
perfcounters: IRQ and NMI support on AMD CPUs

The below completes the K7+ performance counter support:

 - IRQ support
 - NMI support

KernelTop output works now as well.

Signed-off-by: Peter Zijlstra <645ca7d3a8d3d4f60557176cd361ea8351edc32b@chello.nl>
Cc: Jaswinder Singh Rajput <0d2c21fea8cf44f0b0c47c284391933a8a37a292@kernel.org>
Cc: Paul Mackerras <19a0ba370c443ba08d20b5061586430ab449ee8c@samba.org>
LKML-Reference: <9ea05a900199cff7ea36b7779b4a1de698cee24f@laptop>
Signed-off-by: Ingo Molnar <9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@elte.hu>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas