From: Dmytro Laktyushkin <[email protected]>

Change-Id: I998aadaee02116230951c3899e784708487225e5
Signed-off-by: Dmytro Laktyushkin <[email protected]>
Reviewed-by: Dmytro Laktyushkin <[email protected]>
Acked-by: Harry Wentland <[email protected]>
---
 drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c | 41 ++++++++++++++++++++----
 1 file changed, 34 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c 
b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
index eb81edf3afa9..22d98ef69a77 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
@@ -614,23 +614,49 @@ static void calc_wm_sets_and_perf_params(
                context->watermarks.d = context->watermarks.a;
 }
 
-static void dcn_bw_apply_registry_override(struct core_dc *dc)
+static bool dcn_bw_apply_registry_override(struct core_dc *dc)
 {
+       bool updated = false;
+
        kernel_fpu_begin();
-       if (dc->public.debug.sr_exit_time_ns)
+       if ((int)(dc->dcn_soc.sr_exit_time * 1000) != 
dc->public.debug.sr_exit_time_ns
+                       && dc->public.debug.sr_exit_time_ns) {
+               updated = true;
                dc->dcn_soc.sr_exit_time = dc->public.debug.sr_exit_time_ns / 
1000.0;
-       if (dc->public.debug.sr_enter_plus_exit_time_ns)
+       }
+
+       if ((int)(dc->dcn_soc.sr_enter_plus_exit_time * 1000)
+                               != dc->public.debug.sr_enter_plus_exit_time_ns
+                       && dc->public.debug.sr_enter_plus_exit_time_ns) {
+               updated = true;
                dc->dcn_soc.sr_enter_plus_exit_time =
                                dc->public.debug.sr_enter_plus_exit_time_ns / 
1000.0;
-       if (dc->public.debug.urgent_latency_ns)
+       }
+
+       if ((int)(dc->dcn_soc.urgent_latency * 1000) != 
dc->public.debug.urgent_latency_ns
+                       && dc->public.debug.urgent_latency_ns) {
+               updated = true;
                dc->dcn_soc.urgent_latency = dc->public.debug.urgent_latency_ns 
/ 1000.0;
-       if (dc->public.debug.percent_of_ideal_drambw)
+       }
+
+       if 
((int)(dc->dcn_soc.percent_of_ideal_drambw_received_after_urg_latency * 1000)
+                               != dc->public.debug.percent_of_ideal_drambw
+                       && dc->public.debug.percent_of_ideal_drambw) {
+               updated = true;
                dc->dcn_soc.percent_of_ideal_drambw_received_after_urg_latency =
                                dc->public.debug.percent_of_ideal_drambw;
-       if (dc->public.debug.dram_clock_change_latency_ns)
+       }
+
+       if ((int)(dc->dcn_soc.dram_clock_change_latency * 1000)
+                               != dc->public.debug.dram_clock_change_latency_ns
+                       && dc->public.debug.dram_clock_change_latency_ns) {
+               updated = true;
                dc->dcn_soc.dram_clock_change_latency =
                                dc->public.debug.dram_clock_change_latency_ns / 
1000.0;
+       }
        kernel_fpu_end();
+
+       return updated;
 }
 
 bool dcn_validate_bandwidth(
@@ -642,7 +668,8 @@ bool dcn_validate_bandwidth(
        int i, input_idx;
        int vesa_sync_start, asic_blank_end, asic_blank_start;
 
-       dcn_bw_apply_registry_override(DC_TO_CORE(&dc->public));
+       if (dcn_bw_apply_registry_override(DC_TO_CORE(&dc->public)))
+               dcn_bw_sync_calcs_and_dml(DC_TO_CORE(&dc->public));
 
        memset(v, 0, sizeof(*v));
        kernel_fpu_begin();
-- 
2.11.0

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