[PATCH 047/103] drm/amd/display: Add override for reporting wm ranges

[Harry Wentland]

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

For verification of watermark select with SMU team, proper
implementation will follow

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   | 47 ++++++++++++++++++++++
 drivers/gpu/drm/amd/display/dc/dc.h                |  6 +++
 .../drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c  |  3 ++
 .../gpu/drm/amd/display/dc/dcn10/dcn10_resource.c  |  1 +
 4 files changed, 57 insertions(+)

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 9337ccadc321..6318f9f69c92 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c
@@ -1441,6 +1441,53 @@ void dcn_bw_notify_pplib_of_wm_ranges(struct dc *dc)
 	ranges.writer_wm_sets[3].min_drain_clk_khz = max_fclk_khz;
 	ranges.writer_wm_sets[3].max_drain_clk_khz = max_fclk_khz;
 
+	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].min_fill_clk_khz = 800000;
+		ranges.reader_wm_sets[0].max_fill_clk_khz = 800000;
+		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].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;
+	}
+
 	/* Notify PP Lib/SMU which Watermarks to use for which clock ranges */
 	pp->set_wm_ranges(&pp->pp_smu, &ranges);
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index dbbe1d621bee..d624554efbc7 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -173,6 +173,11 @@ enum pipe_split_policy {
 	MPC_SPLIT_AVOID_MULT_DISP = 2,
 };
 
+enum wm_report_mode {
+	WM_REPORT_DEFAULT = 0,
+	WM_REPORT_OVERRIDE = 1,
+};
+
 struct dc_debug {
 	bool surface_visual_confirm;
 	bool sanity_checks;
@@ -194,6 +199,7 @@ struct dc_debug {
 	bool disable_dpp_power_gate;
 	bool disable_hubp_power_gate;
 	bool disable_pplib_wm_range;
+	enum wm_report_mode pplib_wm_report_mode;
 	bool use_dml_wm;
 	unsigned int min_disp_clk_khz;
 	int sr_exit_time_dpm0_ns;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index efa3f6f97baf..86cfab33feea 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -2451,6 +2451,9 @@ static void optimize_shared_resources(struct dc *dc)
 		/* S0i2 message */
 		dcn10_pplib_apply_display_requirements(dc, dc->current_state);
 	}
+
+	if (dc->debug.pplib_wm_report_mode == WM_REPORT_OVERRIDE)
+		dcn_bw_notify_pplib_of_wm_ranges(dc);
 }
 
 static void ready_shared_resources(struct dc *dc, struct dc_state *context)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
index 4018e831eb4b..5d618e68a744 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
@@ -424,6 +424,7 @@ static const struct dc_debug debug_defaults_drv = {
 
 		.disable_pplib_clock_request = true,
 		.disable_pplib_wm_range = false,
+		.pplib_wm_report_mode = WM_REPORT_DEFAULT,
 		.use_dml_wm = false,
 
 		.pipe_split_policy = MPC_SPLIT_AVOID_MULT_DISP,
-- 
2.14.1