1 files changed, 35 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/fctiwz.c b/arch/powerpc/math-emu/fctiwz.c
new file mode 100644
index 0000000000..426271c4f0
--- /dev/null
+++ b/arch/powerpc/math-emu/fctiwz.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/uaccess.h>
+
+#include <asm/sfp-machine.h>
+#include <math-emu/soft-fp.h>
+#include <math-emu/double.h>
+
+int
+fctiwz(u32 *frD, void *frB)
+{
+	FP_DECL_D(B);
+	FP_DECL_EX;
+	u32 fpscr;
+	unsigned int r;
+
+	fpscr = __FPU_FPSCR;
+	__FPU_FPSCR &= ~(3);
+	__FPU_FPSCR |= FP_RND_ZERO;
+
+	FP_UNPACK_DP(B, frB);
+	FP_TO_INT_D(r, B, 32, 1);
+	frD[1] = r;
+
+	__FPU_FPSCR = fpscr;
+
+#ifdef DEBUG
+	printk("%s: D %p, B %p: ", __func__, frD, frB);
+	dump_double(frD);
+	printk("\n");
+#endif
+
+	return 0;
+}