From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 5 Aug 2015 17:04:01 -0300
Subject: Initial import

---
 include/linux/spinlock_api_up.h | 92 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 include/linux/spinlock_api_up.h

(limited to 'include/linux/spinlock_api_up.h')

diff --git a/include/linux/spinlock_api_up.h b/include/linux/spinlock_api_up.h
new file mode 100644
index 000000000..d3afef9d8
--- /dev/null
+++ b/include/linux/spinlock_api_up.h
@@ -0,0 +1,92 @@
+#ifndef __LINUX_SPINLOCK_API_UP_H
+#define __LINUX_SPINLOCK_API_UP_H
+
+#ifndef __LINUX_SPINLOCK_H
+# error "please don't include this file directly"
+#endif
+
+/*
+ * include/linux/spinlock_api_up.h
+ *
+ * spinlock API implementation on UP-nondebug (inlined implementation)
+ *
+ * portions Copyright 2005, Red Hat, Inc., Ingo Molnar
+ * Released under the General Public License (GPL).
+ */
+
+#define in_lock_functions(ADDR)		0
+
+#define assert_raw_spin_locked(lock)	do { (void)(lock); } while (0)
+
+/*
+ * In the UP-nondebug case there's no real locking going on, so the
+ * only thing we have to do is to keep the preempt counts and irq
+ * flags straight, to suppress compiler warnings of unused lock
+ * variables, and to add the proper checker annotations:
+ */
+#define ___LOCK(lock) \
+  do { __acquire(lock); (void)(lock); } while (0)
+
+#define __LOCK(lock) \
+  do { preempt_disable(); ___LOCK(lock); } while (0)
+
+#define __LOCK_BH(lock) \
+  do { __local_bh_disable_ip(_THIS_IP_, SOFTIRQ_LOCK_OFFSET); ___LOCK(lock); } while (0)
+
+#define __LOCK_IRQ(lock) \
+  do { local_irq_disable(); __LOCK(lock); } while (0)
+
+#define __LOCK_IRQSAVE(lock, flags) \
+  do { local_irq_save(flags); __LOCK(lock); } while (0)
+
+#define ___UNLOCK(lock) \
+  do { __release(lock); (void)(lock); } while (0)
+
+#define __UNLOCK(lock) \
+  do { preempt_enable(); ___UNLOCK(lock); } while (0)
+
+#define __UNLOCK_BH(lock) \
+  do { __local_bh_enable_ip(_THIS_IP_, SOFTIRQ_LOCK_OFFSET); \
+       ___UNLOCK(lock); } while (0)
+
+#define __UNLOCK_IRQ(lock) \
+  do { local_irq_enable(); __UNLOCK(lock); } while (0)
+
+#define __UNLOCK_IRQRESTORE(lock, flags) \
+  do { local_irq_restore(flags); __UNLOCK(lock); } while (0)
+
+#define _raw_spin_lock(lock)			__LOCK(lock)
+#define _raw_spin_lock_nested(lock, subclass)	__LOCK(lock)
+#define _raw_spin_lock_bh_nested(lock, subclass) __LOCK(lock)
+#define _raw_read_lock(lock)			__LOCK(lock)
+#define _raw_write_lock(lock)			__LOCK(lock)
+#define _raw_spin_lock_bh(lock)			__LOCK_BH(lock)
+#define _raw_read_lock_bh(lock)			__LOCK_BH(lock)
+#define _raw_write_lock_bh(lock)		__LOCK_BH(lock)
+#define _raw_spin_lock_irq(lock)		__LOCK_IRQ(lock)
+#define _raw_read_lock_irq(lock)		__LOCK_IRQ(lock)
+#define _raw_write_lock_irq(lock)		__LOCK_IRQ(lock)
+#define _raw_spin_lock_irqsave(lock, flags)	__LOCK_IRQSAVE(lock, flags)
+#define _raw_read_lock_irqsave(lock, flags)	__LOCK_IRQSAVE(lock, flags)
+#define _raw_write_lock_irqsave(lock, flags)	__LOCK_IRQSAVE(lock, flags)
+#define _raw_spin_trylock(lock)			({ __LOCK(lock); 1; })
+#define _raw_read_trylock(lock)			({ __LOCK(lock); 1; })
+#define _raw_write_trylock(lock)			({ __LOCK(lock); 1; })
+#define _raw_spin_trylock_bh(lock)		({ __LOCK_BH(lock); 1; })
+#define _raw_spin_unlock(lock)			__UNLOCK(lock)
+#define _raw_read_unlock(lock)			__UNLOCK(lock)
+#define _raw_write_unlock(lock)			__UNLOCK(lock)
+#define _raw_spin_unlock_bh(lock)		__UNLOCK_BH(lock)
+#define _raw_write_unlock_bh(lock)		__UNLOCK_BH(lock)
+#define _raw_read_unlock_bh(lock)		__UNLOCK_BH(lock)
+#define _raw_spin_unlock_irq(lock)		__UNLOCK_IRQ(lock)
+#define _raw_read_unlock_irq(lock)		__UNLOCK_IRQ(lock)
+#define _raw_write_unlock_irq(lock)		__UNLOCK_IRQ(lock)
+#define _raw_spin_unlock_irqrestore(lock, flags) \
+					__UNLOCK_IRQRESTORE(lock, flags)
+#define _raw_read_unlock_irqrestore(lock, flags) \
+					__UNLOCK_IRQRESTORE(lock, flags)
+#define _raw_write_unlock_irqrestore(lock, flags) \
+					__UNLOCK_IRQRESTORE(lock, flags)
+
+#endif /* __LINUX_SPINLOCK_API_UP_H */
-- 
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