Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 46 insertions, 0 deletions

diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c
new file mode 100644
index 000000000..86dace787
--- /dev/null
+++ b/arch/sparc/prom/console_64.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+/* console.c: Routines that deal with sending and receiving IO
+ *            to/from the current console device using the PROM.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <asm/openprom.h>
+#include <asm/oplib.h>
+#include <linux/string.h>
+
+static int __prom_console_write_buf(const char *buf, int len)
+{
+	unsigned long args[7];
+	int ret;
+
+	args[0] = (unsigned long) "write";
+	args[1] = 3;
+	args[2] = 1;
+	args[3] = (unsigned int) prom_stdout;
+	args[4] = (unsigned long) buf;
+	args[5] = (unsigned int) len;
+	args[6] = (unsigned long) -1;
+
+	p1275_cmd_direct(args);
+
+	ret = (int) args[6];
+	if (ret < 0)
+		return -1;
+	return ret;
+}
+
+void prom_console_write_buf(const char *buf, int len)
+{
+	while (len) {
+		int n = __prom_console_write_buf(buf, len);
+		if (n < 0)
+			continue;
+		len -= n;
+		buf += len;
+	}
+}