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