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, 32 insertions, 0 deletions

diff --git a/arch/powerpc/math-emu/fctiwz.c b/arch/powerpc/math-emu/fctiwz.c
new file mode 100644
index 000000000000..7717eb6fcfb6
--- /dev/null
+++ b/arch/powerpc/math-emu/fctiwz.c
@@ -0,0 +1,32 @@
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <asm/uaccess.h>
+
+#include "soft-fp.h"
+#include "double.h"
+
+int
+fctiwz(u32 *frD, void *frB)
+{
+        FP_DECL_D(B);
+        u32 fpscr;
+        unsigned int r;
+
+        fpscr = __FPU_FPSCR;
+        __FPU_FPSCR &= ~(3);
+        __FPU_FPSCR |= FP_RND_ZERO;
+
+        __FP_UNPACK_D(B, frB);
+        FP_TO_INT_D(r, B, 32, 1);
+        frD[1] = r;
+
+        __FPU_FPSCR = fpscr;
+
+#ifdef DEBUG
+        printk("%s: D %p, B %p: ", __FUNCTION__, frD, frB);
+        dump_double(frD);
+        printk("\n");
+#endif
+
+        return 0;
+}