From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:49:45 +0200
Subject: Adding upstream version 6.1.76.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 arch/powerpc/math-emu/fsel.c | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 arch/powerpc/math-emu/fsel.c

(limited to 'arch/powerpc/math-emu/fsel.c')

diff --git a/arch/powerpc/math-emu/fsel.c b/arch/powerpc/math-emu/fsel.c
new file mode 100644
index 000000000..b0d15e15a
--- /dev/null
+++ b/arch/powerpc/math-emu/fsel.c
@@ -0,0 +1,41 @@
+// 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
+fsel(u32 *frD, void *frA, u32 *frB, u32 *frC)
+{
+	FP_DECL_D(A);
+	FP_DECL_EX;
+
+#ifdef DEBUG
+	printk("%s: %p %p %p %p\n", __func__, frD, frA, frB, frC);
+#endif
+
+	FP_UNPACK_DP(A, frA);
+
+#ifdef DEBUG
+	printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
+	printk("B: %08x %08x\n", frB[0], frB[1]);
+	printk("C: %08x %08x\n", frC[0], frC[1]);
+#endif
+
+	if (A_c == FP_CLS_NAN || (A_c != FP_CLS_ZERO && A_s)) {
+		frD[0] = frB[0];
+		frD[1] = frB[1];
+	} else {
+		frD[0] = frC[0];
+		frD[1] = frC[1];
+	}
+
+#ifdef DEBUG
+	printk("D: %08x.%08x\n", frD[0], frD[1]);
+#endif
+
+	return 0;
+}
-- 
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