hi, as per issues with precise attribute [1], adding simple test to catch it next time.
Patch 2 adds sysfs 'precise' attribute containing maximum value for perf_event_attr::precise_ip. Patch 3 adds simple test checking the attribute and creating cycle events with all possible precise values. I based this on revert (Patch 1) discussed in [1]. I'm not sure this revert will tak place at the end, but I wanted to get some feedback on the 'precise' attribute first. Attached patches: 1/3 Revert "perf: Require exclude_guest to use PEBS - kernel side enforcement" 2/3 perf x86: Add precise sysfs attribute 3/3 perf tests: Add precise event attribute test thanks, jirka [1] http://marc.info/?l=linux-kernel&m=135536724805356&w=2 Cc: Corey Ashford <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> --- arch/x86/kernel/cpu/perf_event.c | 38 ++++++++++++++++++++++++-------------- tools/perf/Makefile | 1 + tools/perf/tests/builtin-test.c | 4 ++++ tools/perf/tests/precise.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ tools/perf/tests/tests.h | 1 + 5 files changed, 109 insertions(+), 14 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
