PIPE_MISC_BPC_MASK
switch (tmp & PIPE_MISC_BPC_MASK) {
#define PIPE_MISC_BPC_8 REG_FIELD_PREP(PIPE_MISC_BPC_MASK, 0)
#define PIPE_MISC_BPC_10 REG_FIELD_PREP(PIPE_MISC_BPC_MASK, 1)
#define PIPE_MISC_BPC_6 REG_FIELD_PREP(PIPE_MISC_BPC_MASK, 2)
#define PIPE_MISC_BPC_12_ADLP REG_FIELD_PREP(PIPE_MISC_BPC_MASK, 4) /* adlp+ */