powerpc: move math-emu over to arch/powerpc

Towards the goal of having arch/powerpc not build anything over in arch/ppc
move math-emu over.  Also, killed some references to arch/ppc/ in the
arch/powerpc Makefile which should belong in drivers/ when the particular
sub-arch's move over to arch/powerpc.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/arch/powerpc/math-emu/stfd.c b/arch/powerpc/math-emu/stfd.c
new file mode 100644
index 00000000000..3f8c2558a9e
--- /dev/null
+++ b/arch/powerpc/math-emu/stfd.c
@@ -0,0 +1,20 @@
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <asm/uaccess.h>
+
+int
+stfd(void *frS, void *ea)
+{
+#if 0
+#ifdef DEBUG
+	printk("%s: S %p, ea %p: ", __FUNCTION__, frS, ea);
+	dump_double(frS);
+	printk("\n");
+#endif
+#endif
+
+	if (copy_to_user(ea, frS, sizeof(double)))
+		return -EFAULT;
+
+	return 0;
+}