Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / powerpc / math-emu / mtfsb1.c

diff --git a/kernel/arch/powerpc/math-emu/mtfsb1.c b/kernel/arch/powerpc/math-emu/mtfsb1.c
new file mode 100644 (file)
index 0000000..fe6ed5a
--- /dev/null
+++ b/kernel/arch/powerpc/math-emu/mtfsb1.c
@@ -0,0 +1,19 @@
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <asm/uaccess.h>
+
+#include <asm/sfp-machine.h>
+#include <math-emu/soft-fp.h>
+
+int
+mtfsb1(int crbD)
+{
+       if ((crbD != 1) && (crbD != 2))
+               __FPU_FPSCR |= (1 << (31 - crbD));
+
+#ifdef DEBUG
+       printk("%s: %d %08lx\n", __func__, crbD, __FPU_FPSCR);
+#endif
+
+       return 0;
+}