mmDMA_QM_0_PQ_PI
u32 reg_off = dma_id * (mmDMA_QM_1_PQ_PI - mmDMA_QM_0_PQ_PI);
WREG32(mmDMA_QM_0_PQ_PI + reg_off, 0);
db_reg_offset = mmDMA_QM_0_PQ_PI;
mask |= 1 << ((mmDMA_QM_0_PQ_PI & 0x7F) >> 2);