Merge branch 'linus' into perfcounters/core

Merge reason: Bring in tracing changes we depend on.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 52 insertions, 0 deletions

diff --git a/arch/mips/loongson/common/cmdline.c b/arch/mips/loongson/common/cmdline.c
new file mode 100644
index 000000000000..75f1b243ee4e
--- /dev/null
+++ b/arch/mips/loongson/common/cmdline.c
@@ -0,0 +1,52 @@
+/*
+ * Based on Ocelot Linux port, which is
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@mvista.com or jsun@junsun.net
+ *
+ * Copyright 2003 ICT CAS
+ * Author: Michael Guo <guoyi@ict.ac.cn>
+ *
+ * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@lemote.com
+ *
+ * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology
+ * Author: Wu Zhangjin, wuzj@lemote.com
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+#include <asm/bootinfo.h>
+
+#include <loongson.h>
+
+int prom_argc;
+/* pmon passes arguments in 32bit pointers */
+int *_prom_argv;
+
+void __init prom_init_cmdline(void)
+{
+        int i;
+        long l;
+
+        /* firmware arguments are initialized in head.S */
+        prom_argc = fw_arg0;
+        _prom_argv = (int *)fw_arg1;
+
+        /* arg[0] is "g", the rest is boot parameters */
+        arcs_cmdline[0] = '\0';
+        for (i = 1; i < prom_argc; i++) {
+                l = (long)_prom_argv[i];
+                if (strlen(arcs_cmdline) + strlen(((char *)l) + 1)
+                    >= sizeof(arcs_cmdline))
+                        break;
+                strcat(arcs_cmdline, ((char *)l));
+                strcat(arcs_cmdline, " ");
+        }
+
+        if ((strstr(arcs_cmdline, "console=")) == NULL)
+                strcat(arcs_cmdline, " console=ttyS0,115200");
+        if ((strstr(arcs_cmdline, "root=")) == NULL)
+                strcat(arcs_cmdline, " root=/dev/hda1");
+}