From: Dillon Varone <Dillon.Varone@xxxxxxx>
[WHY]
Subvp portion validation currently assumes that if vlevel provided does not
support pstate, then none will, and so subvp is not used.
[HOW]
After get vlevel, use lowest vlevel that supports pstate if it
exists, and use that for subvp validation.
Reviewed-by: Alvin Lee <Alvin.Lee2@xxxxxxx>
Reviewed-by: Jun Lei <Jun.Lei@xxxxxxx>
Acked-by: Jasdeep Dhillon <jdhillon@xxxxxxx>
Signed-off-by: Dillon Varone <Dillon.Varone@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index a42ddb911e1d..ff5f3ef8be0a 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -1169,6 +1169,16 @@ static void dcn32_full_validate_bw_helper(struct dc *dc,
pipes[0].clks_cfg.dppclk_mhz = get_dppclk_calculated(&context->bw_ctx.dml, pipes, *pipe_cnt, 0);
*vlevel = dml_get_voltage_level(&context->bw_ctx.dml, pipes, *pipe_cnt);
+ /* Check that vlevel requested supports pstate or not
+ * if not, select the lowest vlevel that supports it
+ */
+ for (i = *vlevel; i < context->bw_ctx.dml.soc.num_states; i++) {
+ if (vba->DRAMClockChangeSupport[i][vba->maxMpcComb] != dm_dram_clock_change_unsupported) {
+ *vlevel = i;
+ break;
+ }
+ }
+
if (*vlevel < context->bw_ctx.dml.soc.num_states &&
vba->DRAMClockChangeSupport[*vlevel][vba->maxMpcComb] != dm_dram_clock_change_unsupported
&& subvp_validate_static_schedulability(dc, context, *vlevel)) {
--
2.34.1
