IFETCH_ALIGN_SHIFT   12 arch/powerpc/include/asm/cache.h #define IFETCH_ALIGN_SHIFT	2
IFETCH_ALIGN_SHIFT   16 arch/powerpc/include/asm/cache.h #define IFETCH_ALIGN_SHIFT	3
IFETCH_ALIGN_SHIFT   19 arch/powerpc/include/asm/cache.h #define IFETCH_ALIGN_SHIFT	3	/* 603 fetches 2 insn at a time */
IFETCH_ALIGN_SHIFT   27 arch/powerpc/include/asm/cache.h #define IFETCH_ALIGN_SHIFT	4 /* POWER8,9 */