@@ -21,6 +21,7 @@
#include "../dmaengine.h"
#include "registers.h"
#include "idxd.h"
+#include "perfmon.h"
MODULE_VERSION(IDXD_DRIVER_VERSION);
MODULE_LICENSE("GPL v2");
@@ -489,6 +490,10 @@ static int idxd_probe(struct idxd_device *idxd)
idxd->major = idxd_cdev_get_major(idxd);
+ rc = perfmon_pmu_init(idxd);
+ if (rc < 0)
+ dev_warn(dev, "Failed to initialize perfmon. No PMU support: %d\n", rc);
+
dev_dbg(dev, "IDXD device %d probed successfully\n", idxd->id);
return 0;
@@ -636,6 +641,7 @@ static void idxd_remove(struct pci_dev *pdev)
if (device_pasid_enabled(idxd))
idxd_disable_system_pasid(idxd);
idxd_unregister_devices(idxd);
+ perfmon_pmu_remove(idxd);
}
static struct pci_driver idxd_pci_driver = {
@@ -664,6 +670,8 @@ static int __init idxd_init_module(void)
else
support_enqcmd = true;
+ perfmon_init();
+
err = idxd_register_bus_type();
if (err < 0)
return err;
@@ -697,5 +705,6 @@ static void __exit idxd_exit_module(void)
pci_unregister_driver(&idxd_pci_driver);
idxd_cdev_remove();
idxd_unregister_bus_type();
+ perfmon_exit();
}
module_exit(idxd_exit_module);
@@ -165,11 +165,8 @@ static int process_misc_interrupts(struct idxd_device *idxd, u32 cause)
}
if (cause & IDXD_INTC_PERFMON_OVFL) {
- /*
- * Driver does not utilize perfmon counter overflow interrupt
- * yet.
- */
val |= IDXD_INTC_PERFMON_OVFL;
+ perfmon_counter_overflow(idxd);
}
val ^= cause;