arch/x86/include/asm/boot.h

   1 #ifndef _ASM_X86_BOOT_H
   2 #define _ASM_X86_BOOT_H
   3
   4
   5 #include <asm/pgtable_types.h>
   6 #include <uapi/asm/boot.h>
   7
   8 /* Physical address where kernel should be loaded. */
   9 #define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
  10                                 + (CONFIG_PHYSICAL_ALIGN - 1)) \
  11                                 & ~(CONFIG_PHYSICAL_ALIGN - 1))
  12
  13 /* Minimum kernel alignment, as a power of two */
  14 #ifdef CONFIG_X86_64
  15 #define MIN_KERNEL_ALIGN_LG2    PMD_SHIFT
  16 #else
  17 #define MIN_KERNEL_ALIGN_LG2    (PAGE_SHIFT + THREAD_SIZE_ORDER)
  18 #endif
  19 #define MIN_KERNEL_ALIGN        (_AC(1, UL) << MIN_KERNEL_ALIGN_LG2)
  20
  21 #if (CONFIG_PHYSICAL_ALIGN & (CONFIG_PHYSICAL_ALIGN-1)) || \
  22         (CONFIG_PHYSICAL_ALIGN < MIN_KERNEL_ALIGN)
  23 #error "Invalid value for CONFIG_PHYSICAL_ALIGN"
  24 #endif
  25
  26 #ifdef CONFIG_KERNEL_BZIP2
  27 #define BOOT_HEAP_SIZE             0x400000
  28 #else /* !CONFIG_KERNEL_BZIP2 */
  29
  30 #define BOOT_HEAP_SIZE  0x8000
  31
  32 #endif /* !CONFIG_KERNEL_BZIP2 */
  33
  34 #ifdef CONFIG_X86_64
  35 #define BOOT_STACK_SIZE 0x4000
  36 #else
  37 #define BOOT_STACK_SIZE 0x1000
  38 #endif
  39
  40 #endif /* _ASM_X86_BOOT_H */