perf: Register PMU implementations

[mv-sheeva.git] / kernel / hw_breakpoint.c

diff --git a/kernel/hw_breakpoint.c b/kernel/hw_breakpoint.c
index d71a987fd2bf2ba5e698f9b69fccb59db4a1bb30..e9c5cfa1fd203870c952a393f172dfa8a7d765d2 100644 (file)
--- a/kernel/hw_breakpoint.c
+++ b/kernel/hw_breakpoint.c
@@ -565,6 +565,34 @@ static struct notifier_block hw_breakpoint_exceptions_nb = {
        .priority = 0x7fffffff
 };
 
+static void bp_perf_event_destroy(struct perf_event *event)
+{
+       release_bp_slot(event);
+}
+
+static int hw_breakpoint_event_init(struct perf_event *bp)
+{
+       int err;
+
+       if (bp->attr.type != PERF_TYPE_BREAKPOINT)
+               return -ENOENT;
+
+       err = register_perf_hw_breakpoint(bp);
+       if (err)
+               return err;
+
+       bp->destroy = bp_perf_event_destroy;
+
+       return 0;
+}
+
+static struct pmu perf_breakpoint = {
+       .event_init     = hw_breakpoint_event_init,
+       .enable         = arch_install_hw_breakpoint,
+       .disable        = arch_uninstall_hw_breakpoint,
+       .read           = hw_breakpoint_pmu_read,
+};
+
 static int __init init_hw_breakpoint(void)
 {
        unsigned int **task_bp_pinned;
@@ -586,6 +614,8 @@ static int __init init_hw_breakpoint(void)
 
        constraints_initialized = 1;
 
+       perf_pmu_register(&perf_breakpoint);
+
        return register_die_notifier(&hw_breakpoint_exceptions_nb);
 
  err_alloc:
@@ -601,8 +631,3 @@ static int __init init_hw_breakpoint(void)
 core_initcall(init_hw_breakpoint);
 
 
-struct pmu perf_ops_bp = {
-       .enable         = arch_install_hw_breakpoint,
-       .disable        = arch_uninstall_hw_breakpoint,
-       .read           = hw_breakpoint_pmu_read,
-};