nmi_backtrace: generate one-line reports for idle cpus

[cascardo/linux.git] / include / linux / cpu.h

diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index ad4f1f3..b886dc1 100644 (file)
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -61,17 +61,8 @@ struct notifier_block;
 #define CPU_DOWN_PREPARE       0x0005 /* CPU (unsigned)v going down */
 #define CPU_DOWN_FAILED                0x0006 /* CPU (unsigned)v NOT going down */
 #define CPU_DEAD               0x0007 /* CPU (unsigned)v dead */
-#define CPU_DYING              0x0008 /* CPU (unsigned)v not running any task,
-                                       * not handling interrupts, soon dead.
-                                       * Called on the dying cpu, interrupts
-                                       * are already disabled. Must not
-                                       * sleep, must not fail */
 #define CPU_POST_DEAD          0x0009 /* CPU (unsigned)v dead, cpu_hotplug
                                        * lock is dropped */
-#define CPU_STARTING           0x000A /* CPU (unsigned)v soon running.
-                                       * Called on the new cpu, just before
-                                       * enabling interrupts. Must not sleep,
-                                       * must not fail */
 #define CPU_BROKEN             0x000B /* CPU (unsigned)v did not die properly,
                                        * perhaps due to preemption. */
 
@@ -86,9 +77,6 @@ struct notifier_block;
 #define CPU_DOWN_PREPARE_FROZEN        (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN)
 #define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN)
 #define CPU_DEAD_FROZEN                (CPU_DEAD | CPU_TASKS_FROZEN)
-#define CPU_DYING_FROZEN       (CPU_DYING | CPU_TASKS_FROZEN)
-#define CPU_STARTING_FROZEN    (CPU_STARTING | CPU_TASKS_FROZEN)
-
 
 #ifdef CONFIG_SMP
 extern bool cpuhp_tasks_frozen;
@@ -243,6 +231,11 @@ void cpu_startup_entry(enum cpuhp_state state);
 
 void cpu_idle_poll_ctrl(bool enable);
 
+/* Attach to any functions which should be considered cpuidle. */
+#define __cpuidle      __attribute__((__section__(".cpuidle.text")))
+
+bool cpu_in_idle(unsigned long pc);
+
 void arch_cpu_idle(void);
 void arch_cpu_idle_prepare(void);
 void arch_cpu_idle_enter(void);