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authorThomas Gleixner <tglx@linutronix.de>2013-03-21 22:49:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2013-04-08 17:39:23 +0200
commita1a04ec3c7c27a682473fd9beb2c996316a64649 (patch)
tree9075a4b4c001f81283b2a7d5c1668dee134ec81d /kernel
parent3a98f871ecaf44806e188184332c3fec27c8f08c (diff)
downloadlinux-a1a04ec3c7c27a682473fd9beb2c996316a64649.tar.bz2
idle: Provide a generic entry point for the idle code
For now this calls cpu_idle(), but in the long run we want to move the cpu bringup code to the core and therefor we add a state argument. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Reviewed-by: Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Magnus Damm <magnus.damm@gmail.com> Link: http://lkml.kernel.org/r/20130321215233.583190032@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/Makefile1
-rw-r--r--kernel/cpu/Makefile1
-rw-r--r--kernel/cpu/idle.c10
3 files changed, 12 insertions, 0 deletions
diff --git a/kernel/Makefile b/kernel/Makefile
index bbde5f1a4486..d1574d47cf27 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -24,6 +24,7 @@ endif
obj-y += sched/
obj-y += power/
+obj-y += cpu/
obj-$(CONFIG_CHECKPOINT_RESTORE) += kcmp.o
obj-$(CONFIG_FREEZER) += freezer.o
diff --git a/kernel/cpu/Makefile b/kernel/cpu/Makefile
new file mode 100644
index 000000000000..59ab052ef7a0
--- /dev/null
+++ b/kernel/cpu/Makefile
@@ -0,0 +1 @@
+obj-y = idle.o
diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
new file mode 100644
index 000000000000..1908f00e0e98
--- /dev/null
+++ b/kernel/cpu/idle.c
@@ -0,0 +1,10 @@
+/*
+ * Generic entry point for the idle threads
+ */
+#include <linux/sched.h>
+#include <linux/cpu.h>
+
+void cpu_startup_entry(enum cpuhp_state state)
+{
+ cpu_idle();
+}