MAX_EA_BITS_PER_CONTEXT
#define REGION_SHIFT MAX_EA_BITS_PER_CONTEXT
#define H_KERN_MAP_SIZE (1UL << MAX_EA_BITS_PER_CONTEXT)
#if (H_MAX_PHYSMEM_BITS > MAX_EA_BITS_PER_CONTEXT)
#define MAX_KERNEL_CTX_CNT (1UL << (H_MAX_PHYSMEM_BITS - MAX_EA_BITS_PER_CONTEXT))
ctx = 1 + ((ea & EA_MASK) >> MAX_EA_BITS_PER_CONTEXT);
int index = ea >> MAX_EA_BITS_PER_CONTEXT;
int index = ea >> MAX_EA_BITS_PER_CONTEXT;
BUILD_BUG_ON(RADIX_KERN_MAP_SIZE != (1UL << MAX_EA_BITS_PER_CONTEXT));