summaryrefslogblamecommitdiff
path: root/arch/x86/include/asm/boot.h
blob: 7a1065958ba9d3f1c5a26b9862864e4707418916 (plain) (tree)
1
2
3
4
5
6
7
8
9
10

                       
 




                                                                  

                 
                              
 
                                                     

                                                                

                                                               
                                                 
                    

                                         
                                                           







                                                                      
                          
                                           
                                
 

                              

                              

      
                                 



                              


                              

                       
                            
#ifndef _ASM_X86_BOOT_H
#define _ASM_X86_BOOT_H

/* Internal svga startup constants */
#define NORMAL_VGA	0xffff		/* 80x25 mode */
#define EXTENDED_VGA	0xfffe		/* 80x50 mode */
#define ASK_VGA		0xfffd		/* ask for it at bootup */

#ifdef __KERNEL__

#include <asm/pgtable_types.h>

/* Physical address where kernel should be loaded. */
#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
				+ (CONFIG_PHYSICAL_ALIGN - 1)) \
				& ~(CONFIG_PHYSICAL_ALIGN - 1))

/* Minimum kernel alignment, as a power of two */
#ifdef CONFIG_X86_64
#define MIN_KERNEL_ALIGN_LG2	PMD_SHIFT
#else
#define MIN_KERNEL_ALIGN_LG2	(PAGE_SHIFT + THREAD_ORDER)
#endif
#define MIN_KERNEL_ALIGN	(_AC(1, UL) << MIN_KERNEL_ALIGN_LG2)

#if (CONFIG_PHYSICAL_ALIGN & (CONFIG_PHYSICAL_ALIGN-1)) || \
	(CONFIG_PHYSICAL_ALIGN < (_AC(1, UL) << MIN_KERNEL_ALIGN_LG2))
#error "Invalid value for CONFIG_PHYSICAL_ALIGN"
#endif

#ifdef CONFIG_KERNEL_BZIP2
#define BOOT_HEAP_SIZE             0x400000
#else /* !CONFIG_KERNEL_BZIP2 */

#ifdef CONFIG_X86_64
#define BOOT_HEAP_SIZE	0x7000
#else
#define BOOT_HEAP_SIZE	0x4000
#endif

#endif /* !CONFIG_KERNEL_BZIP2 */

#ifdef CONFIG_X86_64
#define BOOT_STACK_SIZE	0x4000
#else
#define BOOT_STACK_SIZE	0x1000
#endif

#endif /* __KERNEL__ */

#endif /* _ASM_X86_BOOT_H */