summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/math-emu/lfd.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/powerpc/math-emu/lfd.c
parentInitial commit. (diff)
downloadlinux-upstream.tar.xz
linux-upstream.zip
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/powerpc/math-emu/lfd.c')
-rw-r--r--arch/powerpc/math-emu/lfd.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/powerpc/math-emu/lfd.c b/arch/powerpc/math-emu/lfd.c
new file mode 100644
index 000000000..3a6b03d99
--- /dev/null
+++ b/arch/powerpc/math-emu/lfd.c
@@ -0,0 +1,20 @@
+// 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/double.h>
+
+int
+lfd(void *frD, void *ea)
+{
+ if (copy_from_user(frD, ea, sizeof(double)))
+ return -EFAULT;
+#ifdef DEBUG
+ printk("%s: D %p, ea %p: ", __func__, frD, ea);
+ dump_double(frD);
+ printk("\n");
+#endif
+ return 0;
+}