From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@ppc970.osdl.org>
Date: Sat, 16 Apr 2005 15:20:36 -0700
Subject: Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
---
 include/asm-cris/arch-v10/system.h | 62 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 include/asm-cris/arch-v10/system.h

(limited to 'include/asm-cris/arch-v10/system.h')

diff --git a/include/asm-cris/arch-v10/system.h b/include/asm-cris/arch-v10/system.h
new file mode 100644
index 000000000000..781ca30229a8
--- /dev/null
+++ b/include/asm-cris/arch-v10/system.h
@@ -0,0 +1,62 @@
+#ifndef __ASM_CRIS_ARCH_SYSTEM_H
+#define __ASM_CRIS_ARCH_SYSTEM_H
+
+#include <linux/config.h>
+
+/* read the CPU version register */
+
+extern inline unsigned long rdvr(void) { 
+	unsigned char vr;
+	__asm__ volatile ("move $vr,%0" : "=rm" (vr));
+	return vr;
+}
+
+/* read/write the user-mode stackpointer */
+
+extern inline unsigned long rdusp(void) {
+	unsigned long usp;
+	__asm__ __volatile__("move $usp,%0" : "=rm" (usp));
+	return usp;
+}
+
+#define wrusp(usp) \
+	__asm__ __volatile__("move %0,$usp" : /* no outputs */ : "rm" (usp))
+
+/* read the current stackpointer */
+
+extern inline unsigned long rdsp(void) {
+	unsigned long sp;
+	__asm__ __volatile__("move.d $sp,%0" : "=rm" (sp));
+	return sp;
+}
+
+extern inline unsigned long _get_base(char * addr)
+{
+  return 0;
+}
+
+#define nop() __asm__ __volatile__ ("nop");
+
+#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
+#define tas(ptr) (xchg((ptr),1))
+
+struct __xchg_dummy { unsigned long a[100]; };
+#define __xg(x) ((struct __xchg_dummy *)(x))
+
+/* interrupt control.. */
+#define local_save_flags(x)	__asm__ __volatile__ ("move $ccr,%0" : "=rm" (x) : : "memory");
+#define local_irq_restore(x) 	__asm__ __volatile__ ("move %0,$ccr" : : "rm" (x) : "memory");
+#define local_irq_disable() 	__asm__ __volatile__ ( "di" : : :"memory");
+#define local_irq_enable()	__asm__ __volatile__ ( "ei" : : :"memory");
+
+#define irqs_disabled()			\
+({					\
+	unsigned long flags;		\
+	local_save_flags(flags);	\
+	!(flags & (1<<5));		\
+})
+
+/* For spinlocks etc */
+#define local_irq_save(x) __asm__ __volatile__ ("move $ccr,%0\n\tdi" : "=rm" (x) : : "memory");
+
+#endif
-- 
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