64683da664
This patch adds IBS feature detection using cpuid flags. An IBS capability mask is introduced to test for certain IBS features. The bit mask is the same as for IBS cpuid feature flags (Fn8000_001B_EAX), but bit 0 is used to indicate the existence of IBS. The patch also changes the handling of the IbsOpCntCtl bit (periodic op counter count control). The oprofilefs file for this feature (ibs_op/dispatched_ops) will be only exposed if the feature is available, also the default for the bit is set to count clock cycles. In general, the userland can detect the availability of a feature by checking for the corresponding file in oprofilefs. If it exists, the feature also exists. This may lead to a dynamic file layout depending on the cpu type with that the userland has to deal with. Current opcontrol is compatible. Signed-off-by: Robert Richter <robert.richter@amd.com> |
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| .. | ||
| backtrace.c | ||
| init.c | ||
| Makefile | ||
| nmi_int.c | ||
| nmi_timer_int.c | ||
| op_counter.h | ||
| op_model_amd.c | ||
| op_model_p4.c | ||
| op_model_ppro.c | ||
| op_x86_model.h | ||