Changes from v9: * Move PMCCNTR related configuration from pmu_init() to sub-tests * Change the name of loop test function to precise_cycles_loop() * Print out error detail for each test case in check_cpi() * Fix cpi convertion from argv * Change the loop calculation in measure_instrs() after cpi is fixed
Note: 1) Current KVM code has bugs in handling PMCCFILTR write. A fix (see below) is required for this unit testing code to work correctly under KVM mode. https://lists.cs.columbia.edu/pipermail/kvmarm/2016-November/022134.html. Thanks, -Wei Christopher Covington (3): arm: Add PMU test arm: pmu: Check cycle count increases arm: pmu: Add CPI checking arm/Makefile.common | 3 +- arm/pmu.c | 347 ++++++++++++++++++++++++++++++++++++++++++++++++++++ arm/unittests.cfg | 19 +++ 3 files changed, 368 insertions(+), 1 deletion(-) create mode 100644 arm/pmu.c -- 1.8.3.1
