diff options
| -rw-r--r-- | src/import/chips/p9/procedures/hwp/pm/p9_pstate_parameter_block.C | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/import/chips/p9/procedures/hwp/pm/p9_pstate_parameter_block.C b/src/import/chips/p9/procedures/hwp/pm/p9_pstate_parameter_block.C index 87f78debf..cedb6d1eb 100644 --- a/src/import/chips/p9/procedures/hwp/pm/p9_pstate_parameter_block.C +++ b/src/import/chips/p9/procedures/hwp/pm/p9_pstate_parameter_block.C @@ -1748,11 +1748,15 @@ uint32_t PlatPmPPB::ps2v_mv(const Pstate i_pstate) FAPI_INF ("l_SlopeValue %x",l_SlopeValue); - uint32_t x = (l_SlopeValue * (-i_pstate + iv_operating_points[VPD_PT_SET_BIASED_SYSP][region_start].pstate)); + int32_t x_candidate = (l_SlopeValue * (-i_pstate + iv_operating_points[VPD_PT_SET_BIASED_SYSP][region_start].pstate)); + uint32_t x = 0; uint32_t y = x >> VID_SLOPE_FP_SHIFT_12; + if (x_candidate > 0) + x = x_candidate; + uint32_t l_vdd = - (((l_SlopeValue * (-i_pstate + iv_operating_points[VPD_PT_SET_BIASED_SYSP][region_start].pstate)) >> VID_SLOPE_FP_SHIFT_12) + ((x >> VID_SLOPE_FP_SHIFT_12) + (iv_operating_points[VPD_PT_SET_BIASED_SYSP][region_start].vdd_mv)); // Round up |
