get_gp_pmc_amd
pmc = get_gp_pmc_amd(pmu, msr, PMU_TYPE_COUNTER);
pmc = get_gp_pmc_amd(pmu, msr, PMU_TYPE_EVNTSEL);
pmc = get_gp_pmc_amd(pmu, msr, PMU_TYPE_COUNTER);
pmc = get_gp_pmc_amd(pmu, msr, PMU_TYPE_EVNTSEL);
pmc = get_gp_pmc_amd(pmu, msr, PMU_TYPE_COUNTER);
pmc = pmc ? pmc : get_gp_pmc_amd(pmu, msr, PMU_TYPE_EVNTSEL);