perfmon: split pmu into amd and intel architectures.

pmu_driver handling is now perfmon's responsibility.

1 files changed, 28 insertions, 0 deletions

diff --git a/kern/perfmon.h b/kern/perfmon.h
index 89fdd3d..1ab24be 100644
--- a/kern/perfmon.h
+++ b/kern/perfmon.h
@@ -52,6 +52,21 @@
 #define PERFMON_EF_MASK (PERFMON_EF_KERN | PERFMON_EF_USER)
 
 /*
+ * Pmu operations.
+ *
+ * Set by calling perfmon_register_pmu_ops.
+ */
+struct perfmon_pmu_ops {
+    void (*info)(void);
+    int (*translate)(unsigned int *raw_event_idp, unsigned int event_id);
+    int (*alloc)(unsigned int *pmc_idp, unsigned int raw_event_id);
+    void (*free)(unsigned int pmc_id);
+    void (*start)(unsigned int pmc_id, unsigned int raw_event_id);
+    void (*stop)(unsigned int pmc_id);
+    uint64_t (*read)(unsigned int pmc_id);
+};
+
+/*
  * Performance monitoring event.
  *
  * An event describes a single, well-defined state and records its
@@ -200,4 +215,17 @@ INIT_OP_DECLARE(perfmon_bootstrap);
  */
 INIT_OP_DECLARE(perfmon_setup);
 
+/*
+ * Register an architecture-specific driver.
+ */
+int
+perfmon_pmu_register(struct perfmon_pmu_ops *driver);
+
+/*
+ * PMU init moduls
+ *  - module fully initialized
+ */
+INIT_OP_DECLARE(pmu_intel_setup);
+INIT_OP_DECLARE(pmu_amd_setup);
+
 #endif /* _KERN_PERFMON_H */