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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/sh/include/asm/atomic-irq.h
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/sh/include/asm/atomic-irq.h')
-rw-r--r--arch/sh/include/asm/atomic-irq.h73
1 files changed, 73 insertions, 0 deletions
diff --git a/arch/sh/include/asm/atomic-irq.h b/arch/sh/include/asm/atomic-irq.h
new file mode 100644
index 00000000..9f7c5660
--- /dev/null
+++ b/arch/sh/include/asm/atomic-irq.h
@@ -0,0 +1,73 @@
+#ifndef __ASM_SH_ATOMIC_IRQ_H
+#define __ASM_SH_ATOMIC_IRQ_H
+
+#include <linux/irqflags.h>
+
+/*
+ * To get proper branch prediction for the main line, we must branch
+ * forward to code at the end of this object's .text section, then
+ * branch back to restart the operation.
+ */
+static inline void atomic_add(int i, atomic_t *v)
+{
+ unsigned long flags;
+
+ raw_local_irq_save(flags);
+ v->counter += i;
+ raw_local_irq_restore(flags);
+}
+
+static inline void atomic_sub(int i, atomic_t *v)
+{
+ unsigned long flags;
+
+ raw_local_irq_save(flags);
+ v->counter -= i;
+ raw_local_irq_restore(flags);
+}
+
+static inline int atomic_add_return(int i, atomic_t *v)
+{
+ unsigned long temp, flags;
+
+ raw_local_irq_save(flags);
+ temp = v->counter;
+ temp += i;
+ v->counter = temp;
+ raw_local_irq_restore(flags);
+
+ return temp;
+}
+
+static inline int atomic_sub_return(int i, atomic_t *v)
+{
+ unsigned long temp, flags;
+
+ raw_local_irq_save(flags);
+ temp = v->counter;
+ temp -= i;
+ v->counter = temp;
+ raw_local_irq_restore(flags);
+
+ return temp;
+}
+
+static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
+{
+ unsigned long flags;
+
+ raw_local_irq_save(flags);
+ v->counter &= ~mask;
+ raw_local_irq_restore(flags);
+}
+
+static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
+{
+ unsigned long flags;
+
+ raw_local_irq_save(flags);
+ v->counter |= mask;
+ raw_local_irq_restore(flags);
+}
+
+#endif /* __ASM_SH_ATOMIC_IRQ_H */