SZ_2M 48 arch/arm64/include/asm/fixmap.h #define FIX_FDT_SIZE (MAX_FDT_SIZE + SZ_2M) SZ_2M 33 include/linux/sizes.h #define SZ_2M 0x00200000 SZ_2M 33 tools/include/linux/sizes.h #define SZ_2M 0x00200000