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/*
* This is set up by the setup-routine at boot-time
*/
#define PARAM ((unsigned char *)empty_zero_page)
#define MOUNT_ROOT_RDONLY (*(unsigned long *) (PARAM+0x000))
#define RAMDISK_FLAGS (*(unsigned long *) (PARAM+0x004))
#define ORIG_ROOT_DEV (*(unsigned long *) (PARAM+0x008))
#define LOADER_TYPE (*(unsigned long *) (PARAM+0x00c))
#define INITRD_START (*(unsigned long *) (PARAM+0x010))
#define INITRD_SIZE (*(unsigned long *) (PARAM+0x014))
#define M32R_CPUCLK (*(unsigned long *) (PARAM+0x018))
#define M32R_BUSCLK (*(unsigned long *) (PARAM+0x01c))
#define M32R_TIMER_DIVIDE (*(unsigned long *) (PARAM+0x020))
#define COMMAND_LINE ((char *) (PARAM+0x100))
#define SCREEN_INFO (*(struct screen_info *) (PARAM+0x200))
#define COMMAND_LINE_SIZE (512)
#define RAMDISK_IMAGE_START_MASK (0x07FF)
#define RAMDISK_PROMPT_FLAG (0x8000)
#define RAMDISK_LOAD_FLAG (0x4000)
#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
#define PFN_PHYS(x) ((x) << PAGE_SHIFT)
extern unsigned long memory_start;
extern unsigned long memory_end;
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