Added private system arch specific arch_cpu_defs.h header, currently defining

only a SPINLOCK_PAUSE() macro.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36351 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/system/arch/arm/arch_cpu_defs.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2010, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _SYSTEM_ARCH_ARM_DEFS_H
+#define _SYSTEM_ARCH_ARM_DEFS_H
+
+
+#define SPINLOCK_PAUSE()	do {} while (false)
+
+
+#endif	/* _SYSTEM_ARCH_ARM_DEFS_H */

headers/private/system/arch/m68k/arch_cpu_defs.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2010, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _SYSTEM_ARCH_M68K_DEFS_H
+#define _SYSTEM_ARCH_M68K_DEFS_H
+
+
+#define SPINLOCK_PAUSE()	do {} while (false)
+
+
+#endif	/* _SYSTEM_ARCH_M68K_DEFS_H */

headers/private/system/arch/mipsel/arch_cpu_defs.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2010, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _SYSTEM_ARCH_MIPSEL_DEFS_H
+#define _SYSTEM_ARCH_MIPSEL_DEFS_H
+
+
+#define SPINLOCK_PAUSE()	do {} while (false)
+
+
+#endif	/* _SYSTEM_ARCH_MIPSEL_DEFS_H */

headers/private/system/arch/ppc/arch_cpu_defs.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2010, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _SYSTEM_ARCH_PPC_DEFS_H
+#define _SYSTEM_ARCH_PPC_DEFS_H
+
+
+#define SPINLOCK_PAUSE()	do {} while (false)
+
+
+#endif	/* _SYSTEM_ARCH_PPC_DEFS_H */

headers/private/system/arch/x86/arch_cpu_defs.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2010, Ingo Weinhold, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _SYSTEM_ARCH_X86_DEFS_H
+#define _SYSTEM_ARCH_X86_DEFS_H
+
+
+#define SPINLOCK_PAUSE()	asm volatile("pause;")
+
+
+#endif	/* _SYSTEM_ARCH_X86_DEFS_H */