ARM64_MEMSTART_SHIFT  145 arch/arm64/include/asm/kernel-pgtable.h #if defined(CONFIG_SPARSEMEM_VMEMMAP) && ARM64_MEMSTART_SHIFT < SECTION_SIZE_BITS
ARM64_MEMSTART_SHIFT  148 arch/arm64/include/asm/kernel-pgtable.h #define ARM64_MEMSTART_ALIGN	(1UL << ARM64_MEMSTART_SHIFT)