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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /arch/powerpc/math-emu/fctiwz.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/powerpc/math-emu/fctiwz.c')
-rw-r--r--arch/powerpc/math-emu/fctiwz.c35
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;
+}