xref: /openbmc/linux/arch/x86/boot/compressed/cmdline.c (revision b4e18b29)
1 // SPDX-License-Identifier: GPL-2.0
2 #include "misc.h"
3 
4 static unsigned long fs;
5 static inline void set_fs(unsigned long seg)
6 {
7 	fs = seg << 4;  /* shift it back */
8 }
9 typedef unsigned long addr_t;
10 static inline char rdfs8(addr_t addr)
11 {
12 	return *((char *)(fs + addr));
13 }
14 #include "../cmdline.c"
15 unsigned long get_cmd_line_ptr(void)
16 {
17 	unsigned long cmd_line_ptr = boot_params->hdr.cmd_line_ptr;
18 
19 	cmd_line_ptr |= (u64)boot_params->ext_cmd_line_ptr << 32;
20 
21 	return cmd_line_ptr;
22 }
23 int cmdline_find_option(const char *option, char *buffer, int bufsize)
24 {
25 	return __cmdline_find_option(get_cmd_line_ptr(), option, buffer, bufsize);
26 }
27 int cmdline_find_option_bool(const char *option)
28 {
29 	return __cmdline_find_option_bool(get_cmd_line_ptr(), option);
30 }
31