Kernel/aarch64: Implement `Processor::time_spent_idle()`

2 files changed, 7 insertions, 5 deletions

diff --git a/Kernel/Arch/aarch64/Processor.cpp b/Kernel/Arch/aarch64/Processor.cpp
index 320346da51..1e049990eb 100644
--- a/Kernel/Arch/aarch64/Processor.cpp
+++ b/Kernel/Arch/aarch64/Processor.cpp
@@ -156,6 +156,11 @@ u32 Processor::clear_critical()
     return prev_critical;
 }
 
+u64 Processor::time_spent_idle() const
+{
+    return m_idle_thread->time_in_user() + m_idle_thread->time_in_kernel();
+}
+
 u32 Processor::smp_wake_n_idle_processors(u32 wake_count)
 {
     (void)wake_count;
diff --git a/Kernel/Arch/aarch64/Processor.h b/Kernel/Arch/aarch64/Processor.h
index f79ea3ef42..b63a21a232 100644
--- a/Kernel/Arch/aarch64/Processor.h
+++ b/Kernel/Arch/aarch64/Processor.h
@@ -241,11 +241,6 @@ public:
         TODO_AARCH64();
     }
 
-    u64 time_spent_idle() const
-    {
-        TODO_AARCH64();
-    }
-
     static u32 count()
     {
         TODO_AARCH64();
@@ -259,6 +254,8 @@ public:
 
     static void deferred_call_queue(Function<void()>);
 
+    u64 time_spent_idle() const;
+
     static u32 smp_wake_n_idle_processors(u32 wake_count);
 
     [[noreturn]] static void halt();