CS_SHIFT
#define CS_MASK ((1 << CS_SHIFT) - 1)
#define CS_ZONE(s) ((s) >> CS_SHIFT)
#define CS_MK(s, z) ((s) | (z << CS_SHIFT))
CTASSERT(CM_POISONED < (1 << CS_SHIFT));
int cs = (maddr->ma_dimm_addr >> CS_SHIFT) & 1;
if (mcp->mc_trans_table[0][i] == CS_SHIFT) {
dimm_addr |= cs << CS_SHIFT;