[PATCH 40/81] drm/amd/display: call pplib to update clocks

[sunpeng.li at amd.com]

From: Eric Yang <Eric.Yang2 at amd.com>

Allow pplib to update fclk and dcfclk for different voltage levels.
PPlib's values for dispclk and phyclk is not correct, so we are not
getting it from them. fclk is currently not used correctly, although
does not effect the actual fclk we request.

Change-Id: I649ae641f5367507f4a626be9a4f6358e08385fe
Signed-off-by: Eric Yang <Eric.Yang2 at amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng at amd.com>
Acked-by: Harry Wentland <Harry.Wentland at amd.com>
---
 drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c | 46 +++---------------------
 1 file changed, 4 insertions(+), 42 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 3118c24..a1eabc4 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
@@ -1226,28 +1226,13 @@ unsigned int dcn_find_dcfclk_suits_all(
 void dcn_bw_update_from_pplib(struct core_dc *dc)
 {
 	struct dc_context *ctx = dc->ctx;
-	struct dm_pp_clock_levels_with_latency clks = {0};
-	struct dm_pp_clock_levels_with_voltage clks2 = {0};
+	struct dm_pp_clock_levels_with_voltage clks = {0};
 
 	kernel_fpu_begin();
 
+	/* TODO: This is not the proper way to obtain fabric_and_dram_bandwidth, should be min(fclk, memclk) */
+
 	if (dm_pp_get_clock_levels_by_type_with_voltage(
-				ctx, DM_PP_CLOCK_TYPE_DISPLAY_CLK, &clks2) &&
-				clks2.num_levels >= 3) {
-		dc->dcn_soc.max_dispclk_vmin0p65 = clks2.data[0].clocks_in_khz / 1000.0;
-		dc->dcn_soc.max_dispclk_vmid0p72 = clks2.data[clks2.num_levels - 3].clocks_in_khz / 1000.0;
-		dc->dcn_soc.max_dispclk_vnom0p8 = clks2.data[clks2.num_levels - 2].clocks_in_khz / 1000.0;
-		dc->dcn_soc.max_dispclk_vmax0p9 = clks2.data[clks2.num_levels - 1].clocks_in_khz / 1000.0;
-	} else
-		BREAK_TO_DEBUGGER();
-/*
-	if (dm_pp_get_clock_levels_by_type_with_latency(
-			ctx, DM_PP_CLOCK_TYPE_MEMORY_CLK, &clks) &&
-			clks.num_levels != 0) {
-			//this  is to get DRAM data_rate
-		//FabricAndDRAMBandwidth = min(64*FCLK , Data rate * single_Channel_Width * number of channels);
-	}*/
-	if (dm_pp_get_clock_levels_by_type_with_latency(
 			ctx, DM_PP_CLOCK_TYPE_FCLK, &clks) &&
 			clks.num_levels != 0) {
 		ASSERT(clks.num_levels >= 3);
@@ -1265,7 +1250,7 @@ void dcn_bw_update_from_pplib(struct core_dc *dc)
 				(clks.data[clks.num_levels - 1].clocks_in_khz / 1000.0) * ddr4_dram_factor_single_Channel / 1000.0;
 	} else
 		BREAK_TO_DEBUGGER();
-	if (dm_pp_get_clock_levels_by_type_with_latency(
+	if (dm_pp_get_clock_levels_by_type_with_voltage(
 				ctx, DM_PP_CLOCK_TYPE_DCFCLK, &clks) &&
 				clks.num_levels >= 3) {
 		dc->dcn_soc.dcfclkv_min0p65 = clks.data[0].clocks_in_khz / 1000.0;
@@ -1274,30 +1259,7 @@ void dcn_bw_update_from_pplib(struct core_dc *dc)
 		dc->dcn_soc.dcfclkv_max0p9 = clks.data[clks.num_levels - 1].clocks_in_khz / 1000.0;
 	} else
 		BREAK_TO_DEBUGGER();
-	if (dm_pp_get_clock_levels_by_type_with_voltage(
-				ctx, DM_PP_CLOCK_TYPE_DISPLAYPHYCLK, &clks2) &&
-				clks2.num_levels >= 3) {
-		dc->dcn_soc.phyclkv_min0p65 = clks2.data[0].clocks_in_khz / 1000.0;
-		dc->dcn_soc.phyclkv_mid0p72 = clks2.data[clks2.num_levels - 3].clocks_in_khz / 1000.0;
-		dc->dcn_soc.phyclkv_nom0p8 = clks2.data[clks2.num_levels - 2].clocks_in_khz / 1000.0;
-		dc->dcn_soc.phyclkv_max0p9 = clks2.data[clks2.num_levels - 1].clocks_in_khz / 1000.0;
-	} else
-		BREAK_TO_DEBUGGER();
-	if (dm_pp_get_clock_levels_by_type_with_latency(
-				ctx, DM_PP_CLOCK_TYPE_DPPCLK, &clks) &&
-				clks.num_levels >= 3) {
-		dc->dcn_soc.max_dppclk_vmin0p65 = clks.data[0].clocks_in_khz / 1000.0;
-		dc->dcn_soc.max_dppclk_vmid0p72 = clks.data[clks.num_levels - 3].clocks_in_khz / 1000.0;
-		dc->dcn_soc.max_dppclk_vnom0p8 = clks.data[clks.num_levels - 2].clocks_in_khz / 1000.0;
-		dc->dcn_soc.max_dppclk_vmax0p9 = clks.data[clks.num_levels - 1].clocks_in_khz / 1000.0;
-	}
 
-	if (dm_pp_get_clock_levels_by_type_with_latency(
-				ctx, DM_PP_CLOCK_TYPE_SOCCLK, &clks) &&
-				clks.num_levels >= 3) {
-		dc->dcn_soc.socclk = clks.data[0].clocks_in_khz / 1000.0;
-	} else
-			BREAK_TO_DEBUGGER();
 	kernel_fpu_end();
 }
 
-- 
2.7.4