arch/x86/boot/compressed/misc.h

   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 #undef CONFIG_KASAN
  11 #ifdef CONFIG_X86_32
  12 #define _ASM_X86_DESC_H 1
  13 #endif
  14
  15 #include <linux/linkage.h>
  16 #include <linux/screen_info.h>
  17 #include <linux/elf.h>
  18 #include <linux/io.h>
  19 #include <asm/page.h>
  20 #include <asm/boot.h>
  21 #include <asm/bootparam.h>
  22 #include <asm/bootparam_utils.h>
  23
  24 #define BOOT_BOOT_H
  25 #include "../ctype.h"
  26
  27 #ifdef CONFIG_X86_64
  28 #define memptr long
  29 #else
  30 #define memptr unsigned
  31 #endif
  32
  33 /* misc.c */
  34 extern memptr free_mem_ptr;
  35 extern memptr free_mem_end_ptr;
  36 extern struct boot_params *real_mode;           /* Pointer to real-mode data */
  37 void __putstr(const char *s);
  38 #define error_putstr(__x)  __putstr(__x)
  39
  40 #ifdef CONFIG_X86_VERBOSE_BOOTUP
  41
  42 #define debug_putstr(__x)  __putstr(__x)
  43
  44 #else
  45
  46 static inline void debug_putstr(const char *s)
  47 { }
  48
  49 #endif
  50
  51 #if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE
  52 /* cmdline.c */
  53 int cmdline_find_option(const char *option, char *buffer, int bufsize);
  54 int cmdline_find_option_bool(const char *option);
  55 #endif
  56
  57
  58 #if CONFIG_RANDOMIZE_BASE
  59 /* aslr.c */
  60 unsigned char *choose_kernel_location(struct boot_params *boot_params,
  61                                       unsigned char *input,
  62                                       unsigned long input_size,
  63                                       unsigned char *output,
  64                                       unsigned long output_size);
  65 /* cpuflags.c */
  66 bool has_cpuflag(int flag);
  67 #else
  68 static inline
  69 unsigned char *choose_kernel_location(struct boot_params *boot_params,
  70                                       unsigned char *input,
  71                                       unsigned long input_size,
  72                                       unsigned char *output,
  73                                       unsigned long output_size)
  74 {
  75         return output;
  76 }
  77 #endif
  78
  79 #ifdef CONFIG_EARLY_PRINTK
  80 /* early_serial_console.c */
  81 extern int early_serial_base;
  82 void console_init(void);
  83 #else
  84 static const int early_serial_base;
  85 static inline void console_init(void)
  86 { }
  87 #endif
  88
  89 #endif