1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/fneg.c b/arch/powerpc/math-emu/fneg.c
new file mode 100644
index 0000000000..791e724f71
--- /dev/null
+++ b/arch/powerpc/math-emu/fneg.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/uaccess.h>
+
+int
+fneg(u32 *frD, u32 *frB)
+{
+	frD[0] = frB[0] ^ 0x80000000;
+	frD[1] = frB[1];
+
+#ifdef DEBUG
+	printk("%s: D %p, B %p: ", __func__, frD, frB);
+	dump_double(frD);
+	printk("\n");
+#endif
+
+	return 0;
+}