#include <linux/init.h>
#include <linux/cpu.h>
#include <linux/cpumask.h>
+#include <linux/cpufeature.h>
+#include <linux/smp.h>
-#include <asm/cpufeature.h>
#include <asm/perf_event.h>
#include <asm/msr.h>
-#include <asm/smp.h>
#define NUM_COUNTERS_NB 4
#define NUM_COUNTERS_L2 4
.stop = amd_uncore_stop,
.read = amd_uncore_read,
.capabilities = PERF_PMU_CAP_NO_EXCLUDE | PERF_PMU_CAP_NO_INTERRUPT,
+ .module = THIS_MODULE,
};
static struct pmu amd_llc_pmu = {
.stop = amd_uncore_stop,
.read = amd_uncore_read,
.capabilities = PERF_PMU_CAP_NO_EXCLUDE | PERF_PMU_CAP_NO_INTERRUPT,
+ .module = THIS_MODULE,
};
static struct amd_uncore *amd_uncore_alloc(unsigned int cpu)
if (amd_uncore_llc) {
uncore = *per_cpu_ptr(amd_uncore_llc, cpu);
- uncore->id = per_cpu(cpu_llc_id, cpu);
+ uncore->id = get_llc_id(cpu);
uncore = amd_uncore_find_online_sibling(uncore, amd_uncore_llc);
*per_cpu_ptr(amd_uncore_llc, cpu) = uncore;
fail_llc:
if (boot_cpu_has(X86_FEATURE_PERFCTR_NB))
perf_pmu_unregister(&amd_nb_pmu);
- if (amd_uncore_llc)
- free_percpu(amd_uncore_llc);
+ free_percpu(amd_uncore_llc);
fail_nb:
- if (amd_uncore_nb)
- free_percpu(amd_uncore_nb);
+ free_percpu(amd_uncore_nb);
return ret;
}
-device_initcall(amd_uncore_init);
+
+static void __exit amd_uncore_exit(void)
+{
+ cpuhp_remove_state(CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE);
+ cpuhp_remove_state(CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING);
+ cpuhp_remove_state(CPUHP_PERF_X86_AMD_UNCORE_PREP);
+
+ if (boot_cpu_has(X86_FEATURE_PERFCTR_LLC)) {
+ perf_pmu_unregister(&amd_llc_pmu);
+ free_percpu(amd_uncore_llc);
+ amd_uncore_llc = NULL;
+ }
+
+ if (boot_cpu_has(X86_FEATURE_PERFCTR_NB)) {
+ perf_pmu_unregister(&amd_nb_pmu);
+ free_percpu(amd_uncore_nb);
+ amd_uncore_nb = NULL;
+ }
+}
+
+module_init(amd_uncore_init);
+module_exit(amd_uncore_exit);
+
+MODULE_DESCRIPTION("AMD Uncore Driver");
+MODULE_LICENSE("GPL v2");