drm/amd/display: fix dcn1 watermark range reporting

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c

@@ -1335,21 +1335,14 @@ void dcn_bw_notify_pplib_of_wm_ranges(struct dc *dc)
 {
 	struct pp_smu_funcs_rv *pp = dc->res_pool->pp_smu;
 	struct pp_smu_wm_range_sets ranges = {0};
-	int max_fclk_khz, nom_fclk_khz, mid_fclk_khz, min_fclk_khz;
-	int max_dcfclk_khz, min_dcfclk_khz;
-	int socclk_khz;
+	int min_fclk_khz, min_dcfclk_khz, socclk_khz;
 	const int overdrive = 5000000; /* 5 GHz to cover Overdrive */
-	unsigned factor = (ddr4_dram_factor_single_Channel * dc->dcn_soc->number_of_channels);
 
 	if (!pp->set_wm_ranges)
 		return;
 
 	kernel_fpu_begin();
-	max_fclk_khz = dc->dcn_soc->fabric_and_dram_bandwidth_vmax0p9 * 1000000 / factor;
-	nom_fclk_khz = dc->dcn_soc->fabric_and_dram_bandwidth_vnom0p8 * 1000000 / factor;
-	mid_fclk_khz = dc->dcn_soc->fabric_and_dram_bandwidth_vmid0p72 * 1000000 / factor;
 	min_fclk_khz = dc->dcn_soc->fabric_and_dram_bandwidth_vmin0p65 * 1000000 / 32;
-	max_dcfclk_khz = dc->dcn_soc->dcfclkv_max0p9 * 1000;
 	min_dcfclk_khz = dc->dcn_soc->dcfclkv_min0p65 * 1000;
 	socclk_khz = dc->dcn_soc->socclk * 1000;
 	kernel_fpu_end();
@@ -1357,7 +1350,7 @@ void dcn_bw_notify_pplib_of_wm_ranges(struct dc *dc)
 	/* Now notify PPLib/SMU about which Watermarks sets they should select
 	 * depending on DPM state they are in. And update BW MGR GFX Engine and
 	 * Memory clock member variables for Watermarks calculations for each
-	 * Watermark Set
+	 * Watermark Set. Only one watermark set for dcn1 due to hw bug DEGVIDCN10-254.
 	 */
 	/* SOCCLK does not affect anytihng but writeback for DCN so for now we dont
 	 * care what the value is, hence min to overdrive level
@@ -1366,96 +1359,37 @@ void dcn_bw_notify_pplib_of_wm_ranges(struct dc *dc)
 	ranges.num_writer_wm_sets = WM_SET_COUNT;
 	ranges.reader_wm_sets[0].wm_inst = WM_A;
 	ranges.reader_wm_sets[0].min_drain_clk_khz = min_dcfclk_khz;
-	ranges.reader_wm_sets[0].max_drain_clk_khz = max_dcfclk_khz;
+	ranges.reader_wm_sets[0].max_drain_clk_khz = overdrive;
 	ranges.reader_wm_sets[0].min_fill_clk_khz = min_fclk_khz;
-	ranges.reader_wm_sets[0].max_fill_clk_khz = min_fclk_khz;
+	ranges.reader_wm_sets[0].max_fill_clk_khz = overdrive;
 	ranges.writer_wm_sets[0].wm_inst = WM_A;
 	ranges.writer_wm_sets[0].min_fill_clk_khz = socclk_khz;
 	ranges.writer_wm_sets[0].max_fill_clk_khz = overdrive;
 	ranges.writer_wm_sets[0].min_drain_clk_khz = min_fclk_khz;
-	ranges.writer_wm_sets[0].max_drain_clk_khz = min_fclk_khz;
-
-	ranges.reader_wm_sets[1].wm_inst = WM_B;
-	ranges.reader_wm_sets[1].min_drain_clk_khz = min_fclk_khz;
-	ranges.reader_wm_sets[1].max_drain_clk_khz = max_dcfclk_khz;
-	ranges.reader_wm_sets[1].min_fill_clk_khz = mid_fclk_khz;
-	ranges.reader_wm_sets[1].max_fill_clk_khz = mid_fclk_khz;
-	ranges.writer_wm_sets[1].wm_inst = WM_B;
-	ranges.writer_wm_sets[1].min_fill_clk_khz = socclk_khz;
-	ranges.writer_wm_sets[1].max_fill_clk_khz = overdrive;
-	ranges.writer_wm_sets[1].min_drain_clk_khz = mid_fclk_khz;
-	ranges.writer_wm_sets[1].max_drain_clk_khz = mid_fclk_khz;
-
-
-	ranges.reader_wm_sets[2].wm_inst = WM_C;
-	ranges.reader_wm_sets[2].min_drain_clk_khz = min_fclk_khz;
-	ranges.reader_wm_sets[2].max_drain_clk_khz = max_dcfclk_khz;
-	ranges.reader_wm_sets[2].min_fill_clk_khz = nom_fclk_khz;
-	ranges.reader_wm_sets[2].max_fill_clk_khz = nom_fclk_khz;
-	ranges.writer_wm_sets[2].wm_inst = WM_C;
-	ranges.writer_wm_sets[2].min_fill_clk_khz = socclk_khz;
-	ranges.writer_wm_sets[2].max_fill_clk_khz = overdrive;
-	ranges.writer_wm_sets[2].min_drain_clk_khz = nom_fclk_khz;
-	ranges.writer_wm_sets[2].max_drain_clk_khz = nom_fclk_khz;
-
-	ranges.reader_wm_sets[3].wm_inst = WM_D;
-	ranges.reader_wm_sets[3].min_drain_clk_khz = min_fclk_khz;
-	ranges.reader_wm_sets[3].max_drain_clk_khz = max_dcfclk_khz;
-	ranges.reader_wm_sets[3].min_fill_clk_khz = max_fclk_khz;
-	ranges.reader_wm_sets[3].max_fill_clk_khz = max_fclk_khz;
-	ranges.writer_wm_sets[3].wm_inst = WM_D;
-	ranges.writer_wm_sets[3].min_fill_clk_khz = socclk_khz;
-	ranges.writer_wm_sets[3].max_fill_clk_khz = overdrive;
-	ranges.writer_wm_sets[3].min_drain_clk_khz = max_fclk_khz;
-	ranges.writer_wm_sets[3].max_drain_clk_khz = max_fclk_khz;
+	ranges.writer_wm_sets[0].max_drain_clk_khz = overdrive;
 
 	if (dc->debug.pplib_wm_report_mode == WM_REPORT_OVERRIDE) {
 		ranges.reader_wm_sets[0].wm_inst = WM_A;
 		ranges.reader_wm_sets[0].min_drain_clk_khz = 300000;
-		ranges.reader_wm_sets[0].max_drain_clk_khz = 654000;
+		ranges.reader_wm_sets[0].max_drain_clk_khz = 5000000;
 		ranges.reader_wm_sets[0].min_fill_clk_khz = 800000;
-		ranges.reader_wm_sets[0].max_fill_clk_khz = 800000;
+		ranges.reader_wm_sets[0].max_fill_clk_khz = 5000000;
 		ranges.writer_wm_sets[0].wm_inst = WM_A;
 		ranges.writer_wm_sets[0].min_fill_clk_khz = 200000;
-		ranges.writer_wm_sets[0].max_fill_clk_khz = 757000;
+		ranges.writer_wm_sets[0].max_fill_clk_khz = 5000000;
 		ranges.writer_wm_sets[0].min_drain_clk_khz = 800000;
-		ranges.writer_wm_sets[0].max_drain_clk_khz = 800000;
-
-		ranges.reader_wm_sets[1].wm_inst = WM_B;
-		ranges.reader_wm_sets[1].min_drain_clk_khz = 300000;
-		ranges.reader_wm_sets[1].max_drain_clk_khz = 654000;
-		ranges.reader_wm_sets[1].min_fill_clk_khz = 933000;
-		ranges.reader_wm_sets[1].max_fill_clk_khz = 933000;
-		ranges.writer_wm_sets[1].wm_inst = WM_B;
-		ranges.writer_wm_sets[1].min_fill_clk_khz = 200000;
-		ranges.writer_wm_sets[1].max_fill_clk_khz = 757000;
-		ranges.writer_wm_sets[1].min_drain_clk_khz = 933000;
-		ranges.writer_wm_sets[1].max_drain_clk_khz = 933000;
-
-
-		ranges.reader_wm_sets[2].wm_inst = WM_C;
-		ranges.reader_wm_sets[2].min_drain_clk_khz = 300000;
-		ranges.reader_wm_sets[2].max_drain_clk_khz = 654000;
-		ranges.reader_wm_sets[2].min_fill_clk_khz = 1067000;
-		ranges.reader_wm_sets[2].max_fill_clk_khz = 1067000;
-		ranges.writer_wm_sets[2].wm_inst = WM_C;
-		ranges.writer_wm_sets[2].min_fill_clk_khz = 200000;
-		ranges.writer_wm_sets[2].max_fill_clk_khz = 757000;
-		ranges.writer_wm_sets[2].min_drain_clk_khz = 1067000;
-		ranges.writer_wm_sets[2].max_drain_clk_khz = 1067000;
-
-		ranges.reader_wm_sets[3].wm_inst = WM_D;
-		ranges.reader_wm_sets[3].min_drain_clk_khz = 300000;
-		ranges.reader_wm_sets[3].max_drain_clk_khz = 654000;
-		ranges.reader_wm_sets[3].min_fill_clk_khz = 1200000;
-		ranges.reader_wm_sets[3].max_fill_clk_khz = 1200000;
-		ranges.writer_wm_sets[3].wm_inst = WM_D;
-		ranges.writer_wm_sets[3].min_fill_clk_khz = 200000;
-		ranges.writer_wm_sets[3].max_fill_clk_khz = 757000;
-		ranges.writer_wm_sets[3].min_drain_clk_khz = 1200000;
-		ranges.writer_wm_sets[3].max_drain_clk_khz = 1200000;
+		ranges.writer_wm_sets[0].max_drain_clk_khz = 5000000;
 	}
 
+	ranges.reader_wm_sets[1] = ranges.writer_wm_sets[0];
+	ranges.reader_wm_sets[1].wm_inst = WM_B;
+
+	ranges.reader_wm_sets[2] = ranges.writer_wm_sets[0];
+	ranges.reader_wm_sets[2].wm_inst = WM_C;
+
+	ranges.reader_wm_sets[3] = ranges.writer_wm_sets[0];
+	ranges.reader_wm_sets[3].wm_inst = WM_D;
+
 	/* Notify PP Lib/SMU which Watermarks to use for which clock ranges */
 	pp->set_wm_ranges(&pp->pp_smu, &ranges);
 }