Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / cris / include / arch-v32 / arch / delay.h

diff --git a/kernel/arch/cris/include/arch-v32/arch/delay.h b/kernel/arch/cris/include/arch-v32/arch/delay.h
new file mode 100644 (file)
index 0000000..e9fda03
--- /dev/null
+++ b/kernel/arch/cris/include/arch-v32/arch/delay.h
@@ -0,0 +1,28 @@
+#ifndef _ASM_CRIS_ARCH_DELAY_H
+#define _ASM_CRIS_ARCH_DELAY_H
+
+extern void cris_delay10ns(u32 n10ns);
+#define udelay(u) cris_delay10ns((u)*100)
+#define ndelay(n) cris_delay10ns(((n)+9)/10)
+
+/*
+ * Not used anymore for udelay or ndelay.  Referenced by
+ * e.g. init/calibrate.c.  All other references are likely bugs;
+ * should be replaced by mdelay, udelay or ndelay.
+ */
+
+static inline void
+__delay(int loops)
+{
+       __asm__ __volatile__ (
+               "move.d %0, $r9\n\t"
+               "beq 2f\n\t"
+               "subq 1, $r9\n\t"
+               "1:\n\t"
+               "bne 1b\n\t"
+               "subq 1, $r9\n"
+               "2:"
+               : : "g" (loops) : "r9");
+}
+
+#endif /* _ASM_CRIS_ARCH_DELAY_H */