drm/amd/display: Expose OTG_V_TOTAL_MID for HW Diags

[Why]
Existing HW Features, HW Diags test requested that the
registers be exposed.

[How]
Add V_TOTAL_MID to existing DC structures.
Make sure values are passed down throughout DC
Add Register definition.
Program the additional registers
Add additional Logic for V_TOTAL_CONTROL.
Signed-off-by: Bayan Zabihiyan <bayan.zabihiyan@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/core/dc.c

@@ -291,7 +291,9 @@ bool dc_stream_adjust_vmin_vmax(struct dc *dc,
 			dc->hwss.set_drr(&pipe,
 					1,
 					adjust->v_total_min,
-					adjust->v_total_max);
+					adjust->v_total_max,
+					adjust->v_total_mid,
+					adjust->v_total_mid_frame_num);
 
 			ret = true;
 		}

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

@@ -757,6 +757,8 @@ struct crtc_trigger_info {
 struct dc_crtc_timing_adjust {
 	uint32_t v_total_min;
 	uint32_t v_total_max;
+	uint32_t v_total_mid;
+	uint32_t v_total_mid_frame_num;
 };
 
 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT

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

@@ -1719,7 +1719,8 @@ void dce110_set_safe_displaymarks(
  ******************************************************************************/
 
 static void set_drr(struct pipe_ctx **pipe_ctx,
-		int num_pipes, int vmin, int vmax)
+		int num_pipes, unsigned int vmin, unsigned int vmax,
+		unsigned int vmid, unsigned int vmid_frame_number)
 {
 	int i = 0;
 	struct drr_params params = {0};

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

@@ -2747,7 +2747,8 @@ static void dcn10_optimize_bandwidth(
 }
 
 static void dcn10_set_drr(struct pipe_ctx **pipe_ctx,
-		int num_pipes, int vmin, int vmax)
+		int num_pipes, unsigned int vmin, unsigned int vmax,
+		unsigned int vmid, unsigned int vmid_frame_number)
 {
 	int i = 0;
 	struct drr_params params = {0};
@@ -2756,6 +2757,8 @@ static void dcn10_set_drr(struct pipe_ctx **pipe_ctx,
 
 	params.vertical_total_max = vmax;
 	params.vertical_total_min = vmin;
+	params.vertical_total_mid = vmid;
+	params.vertical_total_mid_frame_num = vmid_frame_number;
 
 	/* TODO: If multiple pipes are to be supported, you need
 	 * some GSL stuff. Static screen triggers may be programmed differently

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c

@@ -850,6 +850,18 @@ void optc1_set_drr(
 		params->vertical_total_max > 0 &&
 		params->vertical_total_min > 0) {
 
+		if (params->vertical_total_mid != 0) {
+
+			REG_SET(OTG_V_TOTAL_MID, 0,
+				OTG_V_TOTAL_MID, params->vertical_total_mid - 1);
+
+			REG_UPDATE_2(OTG_V_TOTAL_CONTROL,
+					OTG_VTOTAL_MID_REPLACING_MAX_EN, 1,
+					OTG_VTOTAL_MID_FRAME_NUM,
+					(uint8_t)params->vertical_total_mid_frame_num);
+
+		}
+
 		REG_SET(OTG_V_TOTAL_MAX, 0,
 			OTG_V_TOTAL_MAX, params->vertical_total_max - 1);
 

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h

@@ -54,6 +54,7 @@
 	SRI(OTG_3D_STRUCTURE_CONTROL, OTG, inst),\
 	SRI(OTG_STEREO_STATUS, OTG, inst),\
 	SRI(OTG_V_TOTAL_MAX, OTG, inst),\
+	SRI(OTG_V_TOTAL_MID, OTG, inst),\
 	SRI(OTG_V_TOTAL_MIN, OTG, inst),\
 	SRI(OTG_V_TOTAL_CONTROL, OTG, inst),\
 	SRI(OTG_TRIGA_CNTL, OTG, inst),\
@@ -125,6 +126,7 @@ struct dcn_optc_registers {
 	uint32_t OTG_3D_STRUCTURE_CONTROL;
 	uint32_t OTG_STEREO_STATUS;
 	uint32_t OTG_V_TOTAL_MAX;
+	uint32_t OTG_V_TOTAL_MID;
 	uint32_t OTG_V_TOTAL_MIN;
 	uint32_t OTG_V_TOTAL_CONTROL;
 	uint32_t OTG_TRIGA_CNTL;
@@ -214,12 +216,15 @@ struct dcn_optc_registers {
 	SF(OTG0_OTG_3D_STRUCTURE_CONTROL, OTG_3D_STRUCTURE_V_UPDATE_MODE, mask_sh),\
 	SF(OTG0_OTG_3D_STRUCTURE_CONTROL, OTG_3D_STRUCTURE_STEREO_SEL_OVR, mask_sh),\
 	SF(OTG0_OTG_V_TOTAL_MAX, OTG_V_TOTAL_MAX, mask_sh),\
+	SF(OTG0_OTG_V_TOTAL_MID, OTG_V_TOTAL_MID, mask_sh),\
 	SF(OTG0_OTG_V_TOTAL_MIN, OTG_V_TOTAL_MIN, mask_sh),\
 	SF(OTG0_OTG_V_TOTAL_CONTROL, OTG_V_TOTAL_MIN_SEL, mask_sh),\
 	SF(OTG0_OTG_V_TOTAL_CONTROL, OTG_V_TOTAL_MAX_SEL, mask_sh),\
 	SF(OTG0_OTG_V_TOTAL_CONTROL, OTG_FORCE_LOCK_ON_EVENT, mask_sh),\
 	SF(OTG0_OTG_V_TOTAL_CONTROL, OTG_SET_V_TOTAL_MIN_MASK_EN, mask_sh),\
 	SF(OTG0_OTG_V_TOTAL_CONTROL, OTG_SET_V_TOTAL_MIN_MASK, mask_sh),\
+	SF(OTG0_OTG_V_TOTAL_CONTROL, OTG_VTOTAL_MID_REPLACING_MAX_EN, mask_sh),\
+	SF(OTG0_OTG_V_TOTAL_CONTROL, OTG_VTOTAL_MID_FRAME_NUM, mask_sh),\
 	SF(OTG0_OTG_FORCE_COUNT_NOW_CNTL, OTG_FORCE_COUNT_NOW_CLEAR, mask_sh),\
 	SF(OTG0_OTG_FORCE_COUNT_NOW_CNTL, OTG_FORCE_COUNT_NOW_MODE, mask_sh),\
 	SF(OTG0_OTG_FORCE_COUNT_NOW_CNTL, OTG_FORCE_COUNT_NOW_OCCURRED, mask_sh),\
@@ -348,9 +353,12 @@ struct dcn_optc_registers {
 	type OTG_3D_STRUCTURE_V_UPDATE_MODE;\
 	type OTG_3D_STRUCTURE_STEREO_SEL_OVR;\
 	type OTG_V_TOTAL_MAX;\
+	type OTG_V_TOTAL_MID;\
 	type OTG_V_TOTAL_MIN;\
 	type OTG_V_TOTAL_MIN_SEL;\
 	type OTG_V_TOTAL_MAX_SEL;\
+	type OTG_VTOTAL_MID_REPLACING_MAX_EN;\
+	type OTG_VTOTAL_MID_FRAME_NUM;\
 	type OTG_FORCE_LOCK_ON_EVENT;\
 	type OTG_SET_V_TOTAL_MIN_MASK_EN;\
 	type OTG_SET_V_TOTAL_MIN_MASK;\

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

@@ -597,6 +597,8 @@ enum dc_status dcn20_enable_stream_timing(
 
 	params.vertical_total_min = stream->adjust.v_total_min;
 	params.vertical_total_max = stream->adjust.v_total_max;
+	params.vertical_total_mid = stream->adjust.v_total_mid;
+	params.vertical_total_mid_frame_num = stream->adjust.v_total_mid_frame_num;
 	if (pipe_ctx->stream_res.tg->funcs->set_drr)
 		pipe_ctx->stream_res.tg->funcs->set_drr(
 			pipe_ctx->stream_res.tg, &params);

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

@@ -59,6 +59,8 @@ struct gsl_params {
 struct drr_params {
 	uint32_t vertical_total_min;
 	uint32_t vertical_total_max;
+	uint32_t vertical_total_mid;
+	uint32_t vertical_total_mid_frame_num;
 	bool immediate_flip;
 };
 

drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h

@@ -237,7 +237,8 @@ struct hw_sequencer_funcs {
 #endif
 
 	void (*set_drr)(struct pipe_ctx **pipe_ctx, int num_pipes,
-			int vmin, int vmax);
+			unsigned int vmin, unsigned int vmax,
+			unsigned int vmid, unsigned int vmid_frame_number);
 
 	void (*get_position)(struct pipe_ctx **pipe_ctx, int num_pipes,
 			struct crtc_position *position);