[01/18] x86: expose spin_lock/unlock to lib code

Commit Message

Andrew Jones Feb. 1, 2015, 6:34 p.m. UTC

Move the spin_lock/unlock declarations to lib/x86/asm/spinlock.h,
allowing lib code, e.g. lib/report.c, to use spinlocks.

Signed-off-by: Andrew Jones <[e-mail]>
---
 lib/x86/asm/spinlock.h | 11 +++++++++++
 lib/x86/smp.h          |  7 +------
 2 files changed, 12 insertions(+), 6 deletions(-)
 create mode 100644 lib/x86/asm/spinlock.h

Patch

diff --git a/lib/x86/asm/spinlock.h b/lib/x86/asm/spinlock.h
new file mode 100644
index 0000000000000..4b0cb331c048b
--- /dev/null
+++ b/lib/x86/asm/spinlock.h
@@ -0,0 +1,11 @@ 
+#ifndef __ASM_SPINLOCK_H
+#define __ASM_SPINLOCK_H
+
+struct spinlock {
+    int v;
+};
+
+void spin_lock(struct spinlock *lock);
+void spin_unlock(struct spinlock *lock);
+
+#endif
diff --git a/lib/x86/smp.h b/lib/x86/smp.h
index df5fdba9b9288..566018f49ba31 100644
--- a/lib/x86/smp.h
+++ b/lib/x86/smp.h
@@ -1,21 +1,16 @@ 
 #ifndef __SMP_H
 #define __SMP_H
+#include <asm/spinlock.h>
 
 #define mb() 	asm volatile("mfence":::"memory")
 #define rmb()	asm volatile("lfence":::"memory")
 #define wmb()	asm volatile("sfence" ::: "memory")
 
-struct spinlock {
-    int v;
-};
-
 void smp_init(void);
 
 int cpu_count(void);
 int smp_id(void);
 void on_cpu(int cpu, void (*function)(void *data), void *data);
 void on_cpu_async(int cpu, void (*function)(void *data), void *data);
-void spin_lock(struct spinlock *lock);
-void spin_unlock(struct spinlock *lock);
 
 #endif