xref: /openbmc/linux/arch/x86/boot/compressed/misc.h (revision b34e08d5)
1 #ifndef BOOT_COMPRESSED_MISC_H
2 #define BOOT_COMPRESSED_MISC_H
3 
4 /*
5  * we have to be careful, because no indirections are allowed here, and
6  * paravirt_ops is a kind of one. As it will only run in baremetal anyway,
7  * we just keep it from happening
8  */
9 #undef CONFIG_PARAVIRT
10 #ifdef CONFIG_X86_32
11 #define _ASM_X86_DESC_H 1
12 #endif
13 
14 #include <linux/linkage.h>
15 #include <linux/screen_info.h>
16 #include <linux/elf.h>
17 #include <linux/io.h>
18 #include <asm/page.h>
19 #include <asm/boot.h>
20 #include <asm/bootparam.h>
21 #include <asm/bootparam_utils.h>
22 
23 #define BOOT_BOOT_H
24 #include "../ctype.h"
25 
26 #ifdef CONFIG_X86_64
27 #define memptr long
28 #else
29 #define memptr unsigned
30 #endif
31 
32 /* misc.c */
33 extern memptr free_mem_ptr;
34 extern memptr free_mem_end_ptr;
35 extern struct boot_params *real_mode;		/* Pointer to real-mode data */
36 void __putstr(const char *s);
37 #define error_putstr(__x)  __putstr(__x)
38 
39 #ifdef CONFIG_X86_VERBOSE_BOOTUP
40 
41 #define debug_putstr(__x)  __putstr(__x)
42 
43 #else
44 
45 static inline void debug_putstr(const char *s)
46 { }
47 
48 #endif
49 
50 #if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE
51 /* cmdline.c */
52 int cmdline_find_option(const char *option, char *buffer, int bufsize);
53 int cmdline_find_option_bool(const char *option);
54 #endif
55 
56 
57 #if CONFIG_RANDOMIZE_BASE
58 /* aslr.c */
59 unsigned char *choose_kernel_location(unsigned char *input,
60 				      unsigned long input_size,
61 				      unsigned char *output,
62 				      unsigned long output_size);
63 /* cpuflags.c */
64 bool has_cpuflag(int flag);
65 #else
66 static inline
67 unsigned char *choose_kernel_location(unsigned char *input,
68 				      unsigned long input_size,
69 				      unsigned char *output,
70 				      unsigned long output_size)
71 {
72 	return output;
73 }
74 #endif
75 
76 #ifdef CONFIG_EARLY_PRINTK
77 /* early_serial_console.c */
78 extern int early_serial_base;
79 void console_init(void);
80 #else
81 static const int early_serial_base;
82 static inline void console_init(void)
83 { }
84 #endif
85 
86 #endif
87