drm/amd/display: Implementing new bandwidth registers for DCE120

Registers are added and defined.
Programmed to default values.
Stutter level watermark register is being set to calculated value.
Urgent level registers are programmed to the same as urgency.
The programming of the registers is not expected to have any
functional difference in performance.

Signed-off-by: Mikita Lipski <mikita.lipski@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/dce/dce_mem_input.c

@@ -174,6 +174,25 @@ static void program_urgency_watermark(
 		URGENCY_HIGH_WATERMARK, urgency_high_wm);
 }
 
+static void dce120_program_urgency_watermark(
+	struct dce_mem_input *dce_mi,
+	uint32_t wm_select,
+	uint32_t urgency_low_wm,
+	uint32_t urgency_high_wm)
+{
+	REG_UPDATE(DPG_WATERMARK_MASK_CONTROL,
+		URGENCY_WATERMARK_MASK, wm_select);
+
+	REG_SET_2(DPG_PIPE_URGENCY_CONTROL, 0,
+		URGENCY_LOW_WATERMARK, urgency_low_wm,
+		URGENCY_HIGH_WATERMARK, urgency_high_wm);
+
+	REG_SET_2(DPG_PIPE_URGENT_LEVEL_CONTROL, 0,
+		URGENT_LEVEL_LOW_WATERMARK, urgency_low_wm,
+		URGENT_LEVEL_HIGH_WATERMARK, urgency_high_wm);
+
+}
+
 static void program_nbp_watermark(
 	struct dce_mem_input *dce_mi,
 	uint32_t wm_select,
@@ -209,23 +228,27 @@ static void program_nbp_watermark(
 static void program_stutter_watermark(
 	struct dce_mem_input *dce_mi,
 	uint32_t wm_select,
-	uint32_t stutter_mark)
+	uint32_t stutter_mark,
+	uint32_t stutter_entry)
 {
 	REG_UPDATE(DPG_WATERMARK_MASK_CONTROL,
 		STUTTER_EXIT_SELF_REFRESH_WATERMARK_MASK, wm_select);
 
 	if (REG(DPG_PIPE_STUTTER_CONTROL2))
-		REG_UPDATE(DPG_PIPE_STUTTER_CONTROL2,
-				STUTTER_EXIT_SELF_REFRESH_WATERMARK, stutter_mark);
+		REG_UPDATE_2(DPG_PIPE_STUTTER_CONTROL2,
+				STUTTER_EXIT_SELF_REFRESH_WATERMARK, stutter_mark,
+				STUTTER_ENTER_SELF_REFRESH_WATERMARK, stutter_entry);
 	else
-		REG_UPDATE(DPG_PIPE_STUTTER_CONTROL,
-				STUTTER_EXIT_SELF_REFRESH_WATERMARK, stutter_mark);
+		REG_UPDATE_2(DPG_PIPE_STUTTER_CONTROL,
+				STUTTER_EXIT_SELF_REFRESH_WATERMARK, stutter_mark,
+				STUTTER_ENTER_SELF_REFRESH_WATERMARK, stutter_entry);
 }
 
 static void dce_mi_program_display_marks(
 	struct mem_input *mi,
 	struct dce_watermarks nbp,
-	struct dce_watermarks stutter,
+	struct dce_watermarks stutter_exit,
+	struct dce_watermarks stutter_enter,
 	struct dce_watermarks urgent,
 	uint32_t total_dest_line_time_ns)
 {
@@ -243,26 +266,27 @@ static void dce_mi_program_display_marks(
 	program_nbp_watermark(dce_mi, 2, nbp.a_mark); /* set a */
 	program_nbp_watermark(dce_mi, 1, nbp.d_mark); /* set d */
 
-	program_stutter_watermark(dce_mi, 2, stutter.a_mark); /* set a */
-	program_stutter_watermark(dce_mi, 1, stutter.d_mark); /* set d */
+	program_stutter_watermark(dce_mi, 2, stutter_exit.a_mark, stutter_enter.a_mark); /* set a */
+	program_stutter_watermark(dce_mi, 1, stutter_exit.d_mark, stutter_enter.d_mark); /* set d */
 }
 
 static void dce120_mi_program_display_marks(struct mem_input *mi,
 	struct dce_watermarks nbp,
-	struct dce_watermarks stutter,
+	struct dce_watermarks stutter_exit,
+	struct dce_watermarks stutter_entry,
 	struct dce_watermarks urgent,
 	uint32_t total_dest_line_time_ns)
 {
 	struct dce_mem_input *dce_mi = TO_DCE_MEM_INPUT(mi);
 	uint32_t stutter_en = mi->ctx->dc->debug.disable_stutter ? 0 : 1;
 
-	program_urgency_watermark(dce_mi, 0, /* set a */
+	dce120_program_urgency_watermark(dce_mi, 0, /* set a */
 			urgent.a_mark, total_dest_line_time_ns);
-	program_urgency_watermark(dce_mi, 1, /* set b */
+	dce120_program_urgency_watermark(dce_mi, 1, /* set b */
 			urgent.b_mark, total_dest_line_time_ns);
-	program_urgency_watermark(dce_mi, 2, /* set c */
+	dce120_program_urgency_watermark(dce_mi, 2, /* set c */
 			urgent.c_mark, total_dest_line_time_ns);
-	program_urgency_watermark(dce_mi, 3, /* set d */
+	dce120_program_urgency_watermark(dce_mi, 3, /* set d */
 			urgent.d_mark, total_dest_line_time_ns);
 
 	REG_UPDATE_2(DPG_PIPE_STUTTER_CONTROL,
@@ -273,10 +297,10 @@ static void dce120_mi_program_display_marks(struct mem_input *mi,
 	program_nbp_watermark(dce_mi, 2, nbp.c_mark); /* set c */
 	program_nbp_watermark(dce_mi, 3, nbp.d_mark); /* set d */
 
-	program_stutter_watermark(dce_mi, 0, stutter.a_mark); /* set a */
-	program_stutter_watermark(dce_mi, 1, stutter.b_mark); /* set b */
-	program_stutter_watermark(dce_mi, 2, stutter.c_mark); /* set c */
-	program_stutter_watermark(dce_mi, 3, stutter.d_mark); /* set d */
+	program_stutter_watermark(dce_mi, 0, stutter_exit.a_mark, stutter_entry.a_mark); /* set a */
+	program_stutter_watermark(dce_mi, 1, stutter_exit.b_mark, stutter_entry.b_mark); /* set b */
+	program_stutter_watermark(dce_mi, 2, stutter_exit.c_mark, stutter_entry.c_mark); /* set c */
+	program_stutter_watermark(dce_mi, 3, stutter_exit.d_mark, stutter_entry.d_mark); /* set d */
 }
 
 static void program_tiling(

drivers/gpu/drm/amd/display/dc/dce/dce_mem_input.h

@@ -106,6 +106,7 @@ struct dce_mem_input_registers {
 	uint32_t DPG_PIPE_ARBITRATION_CONTROL1;
 	uint32_t DPG_WATERMARK_MASK_CONTROL;
 	uint32_t DPG_PIPE_URGENCY_CONTROL;
+	uint32_t DPG_PIPE_URGENT_LEVEL_CONTROL;
 	uint32_t DPG_PIPE_NB_PSTATE_CHANGE_CONTROL;
 	uint32_t DPG_PIPE_LOW_POWER_CONTROL;
 	uint32_t DPG_PIPE_STUTTER_CONTROL;
@@ -213,6 +214,11 @@ struct dce_mem_input_registers {
 
 #define MI_DCE12_DMIF_PG_MASK_SH_LIST(mask_sh, blk)\
 	SFB(blk, DPG_PIPE_STUTTER_CONTROL2, STUTTER_EXIT_SELF_REFRESH_WATERMARK, mask_sh),\
+	SFB(blk, DPG_PIPE_STUTTER_CONTROL2, STUTTER_ENTER_SELF_REFRESH_WATERMARK, mask_sh),\
+	SFB(blk, DPG_PIPE_URGENT_LEVEL_CONTROL, URGENT_LEVEL_LOW_WATERMARK, mask_sh),\
+	SFB(blk, DPG_PIPE_URGENT_LEVEL_CONTROL, URGENT_LEVEL_HIGH_WATERMARK, mask_sh),\
+	SFB(blk, DPG_PIPE_URGENCY_CONTROL, URGENCY_LOW_WATERMARK, mask_sh),\
+	SFB(blk, DPG_PIPE_URGENCY_CONTROL, URGENCY_HIGH_WATERMARK, mask_sh),\
 	SFB(blk, DPG_WATERMARK_MASK_CONTROL, PSTATE_CHANGE_WATERMARK_MASK, mask_sh),\
 	SFB(blk, DPG_PIPE_LOW_POWER_CONTROL, PSTATE_CHANGE_ENABLE, mask_sh),\
 	SFB(blk, DPG_PIPE_LOW_POWER_CONTROL, PSTATE_CHANGE_URGENT_DURING_REQUEST, mask_sh),\
@@ -286,6 +292,8 @@ struct dce_mem_input_registers {
 	type STUTTER_EXIT_SELF_REFRESH_WATERMARK_MASK; \
 	type URGENCY_LOW_WATERMARK; \
 	type URGENCY_HIGH_WATERMARK; \
+	type URGENT_LEVEL_LOW_WATERMARK;\
+	type URGENT_LEVEL_HIGH_WATERMARK;\
 	type NB_PSTATE_CHANGE_ENABLE; \
 	type NB_PSTATE_CHANGE_URGENT_DURING_REQUEST; \
 	type NB_PSTATE_CHANGE_NOT_SELF_REFRESH_DURING_REQUEST; \
@@ -297,6 +305,7 @@ struct dce_mem_input_registers {
 	type STUTTER_ENABLE; \
 	type STUTTER_IGNORE_FBC; \
 	type STUTTER_EXIT_SELF_REFRESH_WATERMARK; \
+	type STUTTER_ENTER_SELF_REFRESH_WATERMARK; \
 	type DMIF_BUFFERS_ALLOCATED; \
 	type DMIF_BUFFERS_ALLOCATION_COMPLETED; \
 	type ENABLE; /* MC_HUB_RDREQ_DMIF_LIMIT */\

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

@@ -1539,6 +1539,7 @@ static void dce110_set_displaymarks(
 			pipe_ctx->plane_res.mi,
 			context->bw.dce.nbp_state_change_wm_ns[num_pipes],
 			context->bw.dce.stutter_exit_wm_ns[num_pipes],
+			context->bw.dce.stutter_entry_wm_ns[num_pipes],
 			context->bw.dce.urgent_wm_ns[num_pipes],
 			total_dest_line_time_ns);
 		if (i == underlay_idx) {
@@ -1564,6 +1565,7 @@ static void set_safe_displaymarks(
 		MAX_WATERMARK, MAX_WATERMARK, MAX_WATERMARK, MAX_WATERMARK };
 	struct dce_watermarks nbp_marks = {
 		SAFE_NBP_MARK, SAFE_NBP_MARK, SAFE_NBP_MARK, SAFE_NBP_MARK };
+	struct dce_watermarks min_marks = { 0, 0, 0, 0};
 
 	for (i = 0; i < MAX_PIPES; i++) {
 		if (res_ctx->pipe_ctx[i].stream == NULL || res_ctx->pipe_ctx[i].plane_res.mi == NULL)
@@ -1573,6 +1575,7 @@ static void set_safe_displaymarks(
 				res_ctx->pipe_ctx[i].plane_res.mi,
 				nbp_marks,
 				max_marks,
+				min_marks,
 				max_marks,
 				MAX_WATERMARK);
 

drivers/gpu/drm/amd/display/dc/dce110/dce110_mem_input_v.c

@@ -923,6 +923,7 @@ void dce_mem_input_v_program_display_marks(
 	struct mem_input *mem_input,
 	struct dce_watermarks nbp,
 	struct dce_watermarks stutter,
+	struct dce_watermarks stutter_enter,
 	struct dce_watermarks urgent,
 	uint32_t total_dest_line_time_ns)
 {

drivers/gpu/drm/amd/display/dc/inc/hw/mem_input.h

@@ -104,6 +104,7 @@ struct mem_input_funcs {
 		struct mem_input *mem_input,
 		struct dce_watermarks nbp,
 		struct dce_watermarks stutter,
+		struct dce_watermarks stutter_enter,
 		struct dce_watermarks urgent,
 		uint32_t total_dest_line_time_ns);