summaryrefslogtreecommitdiffstats
path: root/src/import/chips/p9/procedures/hwp/pm/p9_pstate_parameter_block.C
diff options
context:
space:
mode:
Diffstat (limited to 'src/import/chips/p9/procedures/hwp/pm/p9_pstate_parameter_block.C')
-rw-r--r--src/import/chips/p9/procedures/hwp/pm/p9_pstate_parameter_block.C8
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 1b1c4f113..4f16ed1f6 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
@@ -4862,11 +4862,15 @@ uint32_t ps2v_mv(const Pstate i_pstate,
FAPI_INF ("l_SlopeValue %x",l_SlopeValue);
- uint32_t x = (l_SlopeValue * (-i_pstate + i_operating_points[region_start].pstate));
+ int32_t x_candidate = (l_SlopeValue * (-i_pstate + i_operating_points[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 + i_operating_points[region_start].pstate)) >> VID_SLOPE_FP_SHIFT_12)
+ ((x >> VID_SLOPE_FP_SHIFT_12)
+ revle32(i_operating_points[region_start].vdd_mv));
// Round up
OpenPOWER on IntegriCloud