drm/amd/display: Replay + IPS + ABM in Full Screen VPB

[Why]
Because ABM will wait VStart to start getting histogram data,
 it will cause we can't enter IPS while full screnn video playing.

[How]
Modify the panel refresh rate to the maximun multiple of current
 refresh rate.

Reviewed-by: Dennis Chan <dennis.chan@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: ChunTao Tso <chuntao.tso@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: ChunTao Tso

drivers/gpu/drm/amd/display/dc/dc_types.h

@@ -1034,6 +1034,7 @@ enum replay_FW_Message_type {
 	Replay_Msg_Not_Support = -1,
 	Replay_Set_Timing_Sync_Supported,
 	Replay_Set_Residency_Frameupdate_Timer,
+	Replay_Set_Pseudo_VTotal,
 };
 
 union replay_error_status {
@@ -1089,6 +1090,10 @@ struct replay_settings {
 	uint16_t coasting_vtotal_table[PR_COASTING_TYPE_NUM];
 	/* Maximum link off frame count */
 	enum replay_link_off_frame_count_level link_off_frame_count_level;
+	/* Replay pseudo vtotal for abm + ips on full screen video which can improve ips residency */
+	uint16_t abm_with_ips_on_full_screen_video_pseudo_vtotal;
+	/* Replay last pseudo vtotal set to DMUB */
+	uint16_t last_pseudo_vtotal;
 };
 
 /* To split out "global" and "per-panel" config settings.

drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h

@@ -2895,6 +2895,10 @@ enum dmub_cmd_replay_type {
 	 * Set Residency Frameupdate Timer.
 	 */
 	DMUB_CMD__REPLAY_SET_RESIDENCY_FRAMEUPDATE_TIMER = 6,
+	/**
+	 * Set pseudo vtotal
+	 */
+	DMUB_CMD__REPLAY_SET_PSEUDO_VTOTAL = 7,
 };
 
 /**
@@ -3077,6 +3081,26 @@ struct dmub_cmd_replay_set_timing_sync_data {
 	uint8_t pad[2];
 };
 
+/**
+ * Data passed from driver to FW in a DMUB_CMD__REPLAY_SET_PSEUDO_VTOTAL command.
+ */
+struct dmub_cmd_replay_set_pseudo_vtotal {
+	/**
+	 * Panel Instance.
+	 * Panel isntance to identify which replay_state to use
+	 * Currently the support is only for 0 or 1
+	 */
+	uint8_t panel_inst;
+	/**
+	 * Source Vtotal that Replay + IPS + ABM full screen video src vtotal
+	 */
+	uint16_t vtotal;
+	/**
+	 * Explicit padding to 4 byte boundary.
+	 */
+	uint8_t pad;
+};
+
 /**
  * Definition of a DMUB_CMD__SET_REPLAY_POWER_OPT command.
  */
@@ -3157,6 +3181,20 @@ struct dmub_rb_cmd_replay_set_timing_sync {
 	struct dmub_cmd_replay_set_timing_sync_data replay_set_timing_sync_data;
 };
 
+/**
+ * Definition of a DMUB_CMD__REPLAY_SET_PSEUDO_VTOTAL command.
+ */
+struct dmub_rb_cmd_replay_set_pseudo_vtotal {
+	/**
+	 * Command header.
+	 */
+	struct dmub_cmd_header header;
+	/**
+	 * Definition of DMUB_CMD__REPLAY_SET_PSEUDO_VTOTAL command.
+	 */
+	struct dmub_cmd_replay_set_pseudo_vtotal data;
+};
+
 /**
  * Data passed from driver to FW in  DMUB_CMD__REPLAY_SET_RESIDENCY_FRAMEUPDATE_TIMER command.
  */
@@ -3208,6 +3246,10 @@ union dmub_replay_cmd_set {
 	 * Definition of DMUB_CMD__REPLAY_SET_RESIDENCY_FRAMEUPDATE_TIMER command data.
 	 */
 	struct dmub_cmd_replay_frameupdate_timer_data timer_data;
+	/**
+	 * Definition of DMUB_CMD__REPLAY_SET_PSEUDO_VTOTAL command data.
+	 */
+	struct dmub_cmd_replay_set_pseudo_vtotal pseudo_vtotal_data;
 };
 
 /**
@@ -4359,6 +4401,10 @@ union dmub_rb_cmd {
 	 * Definition of a DMUB_CMD__REPLAY_SET_RESIDENCY_FRAMEUPDATE_TIMER command.
 	 */
 	struct dmub_rb_cmd_replay_set_frameupdate_timer replay_set_frameupdate_timer;
+	/**
+	 * Definition of a DMUB_CMD__REPLAY_SET_PSEUDO_VTOTAL command.
+	 */
+	struct dmub_rb_cmd_replay_set_pseudo_vtotal replay_set_pseudo_vtotal;
 };
 
 /**

drivers/gpu/drm/amd/display/modules/power/power_helpers.c

@@ -980,6 +980,11 @@ void set_replay_coasting_vtotal(struct dc_link *link,
 	link->replay_settings.coasting_vtotal_table[type] = vtotal;
 }
 
+void set_replay_ips_full_screen_video_src_vtotal(struct dc_link *link, uint16_t vtotal)
+{
+	link->replay_settings.abm_with_ips_on_full_screen_video_pseudo_vtotal = vtotal;
+}
+
 void calculate_replay_link_off_frame_count(struct dc_link *link,
 	uint16_t vtotal, uint16_t htotal)
 {

drivers/gpu/drm/amd/display/modules/power/power_helpers.h

@@ -57,6 +57,7 @@ void init_replay_config(struct dc_link *link, struct replay_config *pr_config);
 void set_replay_coasting_vtotal(struct dc_link *link,
 	enum replay_coasting_vtotal_type type,
 	uint16_t vtotal);
+void set_replay_ips_full_screen_video_src_vtotal(struct dc_link *link, uint16_t vtotal);
 void calculate_replay_link_off_frame_count(struct dc_link *link,
 	uint16_t vtotal, uint16_t htotal);