[PATCH 1/9] perf x86: Add precise sysfs cpu pmu attribute

Adding sysfs 'precise' attribute for cpu device (/sys/devices/cpu/precise) to show the maximum value for perf event precise_ip attribute. This will be used to put proper precise_ip when configuring an event and and to automatically test precise stuff to some extend. Signed-off-by: Jiri Olsa Cc:

[PATCH 1/9] perf x86: Add precise sysfs cpu pmu attribute

Adding sysfs 'precise' attribute for cpu device (/sys/devices/cpu/precise) to show the maximum value for perf event precise attribute. This will be initially used for automated precise event perf test and could be helpful otherwise. TODO Arnaldo suggested to use this as a guide for default adding