FIX_FDT_SIZE 50 arch/arm64/include/asm/fixmap.h FIX_FDT = FIX_FDT_END + FIX_FDT_SIZE / PAGE_SIZE - 1, FIX_FDT_SIZE 26 arch/riscv/include/asm/fixmap.h FIX_FDT = FIX_FDT_END + FIX_FDT_SIZE / PAGE_SIZE - 1, FIX_FDT_SIZE 398 arch/riscv/mm/init.c end_va = __fix_to_virt(FIX_FDT) + FIX_FDT_SIZE;