PIPE_CRC_SOURCE_MASK_IVB
#define PIPE_CRC_SOURCE_PRIMARY_IVB REG_FIELD_PREP(PIPE_CRC_SOURCE_MASK_IVB, 0)
#define PIPE_CRC_SOURCE_SPRITE_IVB REG_FIELD_PREP(PIPE_CRC_SOURCE_MASK_IVB, 1)
#define PIPE_CRC_SOURCE_PF_IVB REG_FIELD_PREP(PIPE_CRC_SOURCE_MASK_IVB, 2)