1 files changed, 37 insertions, 0 deletions
diff --git a/arch/cris/include/arch-v32/arch/system.h b/arch/cris/include/arch-v32/arch/system.h
new file mode 100644
index 000000000..db853fb3a
--- /dev/null
+++ b/arch/cris/include/arch-v32/arch/system.h
@@ -0,0 +1,37 @@
+#ifndef _ASM_CRIS_ARCH_SYSTEM_H
+#define _ASM_CRIS_ARCH_SYSTEM_H
+
+
+/* Read the CPU version register. */
+static inline unsigned long rdvr(void)
+{
+	unsigned char vr;
+
+	__asm__ __volatile__ ("move $vr, %0" : "=rm" (vr));
+	return vr;
+}
+
+#define cris_machine_name "crisv32"
+
+/* Read the user-mode stack pointer. */
+static inline unsigned long rdusp(void)
+{
+	unsigned long usp;
+
+	__asm__ __volatile__ ("move $usp, %0" : "=rm" (usp));
+	return usp;
+}
+
+/* Read the current stack pointer. */
+static inline unsigned long rdsp(void)
+{
+	unsigned long sp;
+
+	__asm__ __volatile__ ("move.d $sp, %0" : "=rm" (sp));
+	return sp;
+}
+
+/* Write the user-mode stack pointer. */
+#define wrusp(usp) __asm__ __volatile__ ("move %0, $usp" : : "rm" (usp))
+
+#endif /* _ASM_CRIS_ARCH_SYSTEM_H */