regSDMA_F32_CNTL
temp = RREG32_SDMA(i, regSDMA_F32_CNTL);
WREG32_SDMA(i, regSDMA_F32_CNTL, temp);
if (!REG_GET_FIELD(RREG32_SDMA(ring->me, regSDMA_F32_CNTL), SDMA_F32_CNTL, HALT))
f32_cntl = RREG32_SDMA(i, regSDMA_F32_CNTL);
WREG32_SDMA(i, regSDMA_F32_CNTL, f32_cntl);