path: root/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0510-drm-amd-display-RV-stereo-support.patch

From a940b5d4286edc8561639b49f4f09cce8832b631 Mon Sep 17 00:00:00 2001
From: Vitaly Prosyak <vitaly.prosyak@amd.com>
Date: Wed, 7 Jun 2017 12:23:59 -0500
Subject: [PATCH 0510/4131] drm/amd/display: RV stereo support

HDMI frame pack and DP frame alternate in band

Signed-off-by: Vitaly Prosyak <vitaly.prosyak@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/dc.h                |  21 ++-
 .../amd/display/dc/dcn10/dcn10_timing_generator.c  | 184 ++++++++++-----------
 .../amd/display/dc/dcn10/dcn10_timing_generator.h  |   5 +
 .../drm/amd/display/dc/inc/hw/timing_generator.h   |  12 ++
 drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h  |   4 +
 5 files changed, 124 insertions(+), 102 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index e08e532..fb86808 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -361,6 +361,7 @@ struct dc_surface_status {
 	struct dc_plane_address requested_address;
 	struct dc_plane_address current_address;
 	bool is_flip_pending;
+	bool is_right_eye;
 };
 
 /*
@@ -476,7 +477,7 @@ struct dc_stream {
 	const struct dc_transfer_func *out_transfer_func;
 	struct colorspace_transform gamut_remap_matrix;
 	struct csc_transform csc_color_matrix;
-
+	enum view_3d_format view_format;
 	/* TODO: custom INFO packets */
 	/* TODO: ABM info (DMCU) */
 	/* TODO: PSR info */
@@ -591,6 +592,15 @@ bool dc_commit_streams(
 		struct dc *dc,
 		const struct dc_stream *streams[],
 		uint8_t stream_count);
+/*
+ * Enable stereo when commit_streams is not required,
+ * for example, frame alternate.
+ */
+bool dc_enable_stereo(
+	struct dc *dc,
+	struct validate_context *context,
+	const struct dc_stream *streams[],
+	uint8_t stream_count);
 
 /**
  * Create a new default stream for the requested sink
@@ -777,6 +787,14 @@ struct dc_container_id {
 	unsigned short productCode;
 };
 
+struct stereo_3d_features {
+	bool supported			;
+	bool allTimings			;
+	bool cloneMode			;
+	bool scaling			;
+	bool singleFrameSWPacked;
+};
+
 /*
  * The sink structure contains EDID and other display device properties
  */
@@ -788,6 +806,7 @@ struct dc_sink {
 	uint32_t dongle_max_pix_clk;
 	bool converter_disable_audio;
 	void *priv;
+	struct stereo_3d_features features_3d[TIMING_3D_FORMAT_MAX];
 };
 
 void dc_sink_retain(const struct dc_sink *sink);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c
index c5a636c..bc3934d 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c
@@ -78,112 +78,22 @@ static void dcn10_program_global_sync(
 			VREADY_OFFSET, tg->dlg_otg_param.vready_offset);
 }
 
-struct crtc_stereo_flags {
-	uint8_t PROGRAM_STEREO         :1;
-	uint8_t PROGRAM_POLARITY       :1;
-	uint8_t RIGHT_EYE_POLARITY     :1;
-	uint8_t FRAME_PACKED           :1;
-	uint8_t DISABLE_STEREO_DP_SYNC :1;
-};
-
-static void dcn10_enable_stereo(struct timing_generator *tg,
-		const struct crtc_stereo_flags *flags,
-		const struct dc_crtc_timing *timing)
-{
-	struct dcn10_timing_generator *tgn10 = DCN10TG_FROM_TG(tg);
-
-	uint32_t active_width = timing->h_addressable;
-	uint32_t space1_size = timing->v_total - timing->v_addressable;
-
-	if (flags) {
-		uint32_t stereo_en = flags->FRAME_PACKED == 0 ? 1 : 0;
-
-		if (flags->PROGRAM_STEREO)
-			REG_UPDATE_3(OTG_STEREO_CONTROL,
-					OTG_STEREO_EN, stereo_en,
-					OTG_STEREO_SYNC_OUTPUT_LINE_NUM, 0,
-					OTG_STEREO_SYNC_OUTPUT_POLARITY, 0);
-
-		if (flags->PROGRAM_POLARITY)
-			REG_UPDATE(OTG_STEREO_CONTROL,
-					OTG_STEREO_EYE_FLAG_POLARITY,
-					flags->RIGHT_EYE_POLARITY == 0 ? 0:1);
-
-		if (flags->DISABLE_STEREO_DP_SYNC)
-			REG_UPDATE(OTG_STEREO_CONTROL,
-					OTG_DISABLE_STEREOSYNC_OUTPUT_FOR_DP, 1);
-
-		if (flags->PROGRAM_STEREO && flags->FRAME_PACKED)
-			REG_UPDATE_3(OTG_3D_STRUCTURE_CONTROL,
-					OTG_3D_STRUCTURE_EN, 1,
-					OTG_3D_STRUCTURE_V_UPDATE_MODE, 1,
-					OTG_3D_STRUCTURE_STEREO_SEL_OVR, 1);
-
-	}
-
-	REG_UPDATE(OPPBUF_CONTROL,
-			OPPBUF_ACTIVE_WIDTH, active_width);
-
-	REG_UPDATE(OPPBUF_3D_PARAMETERS_0,
-			OPPBUF_3D_VACT_SPACE1_SIZE, space1_size);
-
-	return;
-}
-
 static void dcn10_disable_stereo(struct timing_generator *tg)
 {
 	struct dcn10_timing_generator *tgn10 = DCN10TG_FROM_TG(tg);
 
 	REG_SET(OTG_STEREO_CONTROL, 0,
-			OTG_STEREO_EN, 0);
+		OTG_STEREO_EN, 0);
 
 	REG_SET_3(OTG_3D_STRUCTURE_CONTROL, 0,
-			OTG_3D_STRUCTURE_EN, 0,
-			OTG_3D_STRUCTURE_V_UPDATE_MODE, 0,
-			OTG_3D_STRUCTURE_STEREO_SEL_OVR, 0);
+		OTG_3D_STRUCTURE_EN, 0,
+		OTG_3D_STRUCTURE_V_UPDATE_MODE, 0,
+		OTG_3D_STRUCTURE_STEREO_SEL_OVR, 0);
 
 	REG_UPDATE(OPPBUF_CONTROL,
-			OPPBUF_ACTIVE_WIDTH, 0);
+		OPPBUF_ACTIVE_WIDTH, 0);
 	REG_UPDATE(OPPBUF_3D_PARAMETERS_0,
-			OPPBUF_3D_VACT_SPACE1_SIZE, 0);
-	return;
-}
-
-static bool is_frame_alternate_stereo(enum dc_timing_3d_format fmt)
-{
-	bool ret = false;
-	if (fmt == TIMING_3D_FORMAT_FRAME_ALTERNATE ||
-		fmt == TIMING_3D_FORMAT_INBAND_FA ||
-		fmt == TIMING_3D_FORMAT_DP_HDMI_INBAND_FA ||
-		fmt == TIMING_3D_FORMAT_SIDEBAND_FA)
-		ret = true;
-	return ret;
-}
-
-static void dcn10_do_stereo(struct timing_generator *tg,
-		const struct dc_crtc_timing *dc_crtc_timing)
-{
-	struct crtc_stereo_flags stereo_flags = {0};
-	if (dc_crtc_timing->timing_3d_format == TIMING_3D_FORMAT_NONE ||
-		dc_crtc_timing->timing_3d_format == TIMING_3D_FORMAT_SIDE_BY_SIDE ||
-		dc_crtc_timing->timing_3d_format == TIMING_3D_FORMAT_TOP_AND_BOTTOM)
-		dcn10_disable_stereo(tg);
-	else {
-		stereo_flags.PROGRAM_STEREO = 1;
-		stereo_flags.PROGRAM_POLARITY = 1;
-		stereo_flags.DISABLE_STEREO_DP_SYNC = 0;
-		stereo_flags.RIGHT_EYE_POLARITY =
-				dc_crtc_timing->flags.RIGHT_EYE_3D_POLARITY;
-		if (dc_crtc_timing->timing_3d_format ==
-				TIMING_3D_FORMAT_HW_FRAME_PACKING)
-			stereo_flags.FRAME_PACKED = 1;
-
-		if (is_frame_alternate_stereo(
-				dc_crtc_timing->timing_3d_format) ||
-				dc_crtc_timing->timing_3d_format ==
-					TIMING_3D_FORMAT_HW_FRAME_PACKING)
-			dcn10_enable_stereo(tg, &stereo_flags, dc_crtc_timing);
-	}
+		OPPBUF_3D_VACT_SPACE1_SIZE, 0);
 }
 
 /**
@@ -361,9 +271,8 @@ static void tg_program_timing_generator(
 	REG_UPDATE(OTG_H_TIMING_CNTL,
 			OTG_H_TIMING_DIV_BY2, h_div_2);
 
-	/* Enable crtc stereo frame pack tested... todo more
-	 */
-	dcn10_do_stereo(tg, &patched_crtc_timing);
+	dcn10_disable_stereo( tg);
+
 }
 
 /** tg_program_blanking
@@ -605,7 +514,8 @@ static bool tg_validate_timing(
 		timing->timing_3d_format != TIMING_3D_FORMAT_HW_FRAME_PACKING &&
 		timing->timing_3d_format != TIMING_3D_FORMAT_TOP_AND_BOTTOM &&
 		timing->timing_3d_format != TIMING_3D_FORMAT_SIDE_BY_SIDE &&
-		timing->timing_3d_format != TIMING_3D_FORMAT_FRAME_ALTERNATE)
+		timing->timing_3d_format != TIMING_3D_FORMAT_FRAME_ALTERNATE &&
+		timing->timing_3d_format != TIMING_3D_FORMAT_INBAND_FA)
 		return false;
 
 	/* Temporarily blocking interlacing mode until it's supported */
@@ -1145,6 +1055,76 @@ void dcn10_timing_generator_get_crtc_scanoutpos(
 	*v_position = position.vertical_count;
 }
 
+
+
+static void dcn10_enable_stereo(struct timing_generator *tg,
+	const struct dc_crtc_timing *timing, struct crtc_stereo_flags *flags)
+{
+	struct dcn10_timing_generator *tgn10 = DCN10TG_FROM_TG(tg);
+
+	uint32_t active_width = timing->h_addressable;
+	uint32_t space1_size = timing->v_total - timing->v_addressable;
+
+	if (flags) {
+		uint32_t stereo_en;
+		stereo_en = flags->FRAME_PACKED == 0 ? 1 : 0;
+
+		if (flags->PROGRAM_STEREO)
+			REG_UPDATE_3(OTG_STEREO_CONTROL,
+				OTG_STEREO_EN, stereo_en,
+				OTG_STEREO_SYNC_OUTPUT_LINE_NUM, 0,
+				OTG_STEREO_SYNC_OUTPUT_POLARITY, 0);
+
+		if (flags->PROGRAM_POLARITY)
+			REG_UPDATE(OTG_STEREO_CONTROL,
+				OTG_STEREO_EYE_FLAG_POLARITY,
+				flags->RIGHT_EYE_POLARITY == 0 ? 0 : 1);
+
+		if (flags->DISABLE_STEREO_DP_SYNC)
+			REG_UPDATE(OTG_STEREO_CONTROL,
+				OTG_DISABLE_STEREOSYNC_OUTPUT_FOR_DP, 1);
+
+		if (flags->PROGRAM_STEREO && flags->FRAME_PACKED)
+			REG_UPDATE_3(OTG_3D_STRUCTURE_CONTROL,
+				OTG_3D_STRUCTURE_EN, 1,
+				OTG_3D_STRUCTURE_V_UPDATE_MODE, 1,
+				OTG_3D_STRUCTURE_STEREO_SEL_OVR, 1);
+
+	}
+
+	REG_UPDATE(OPPBUF_CONTROL,
+		OPPBUF_ACTIVE_WIDTH, active_width);
+
+	REG_UPDATE(OPPBUF_3D_PARAMETERS_0,
+		OPPBUF_3D_VACT_SPACE1_SIZE, space1_size);
+}
+
+static void dcn10_program_stereo(struct timing_generator *tg,
+	const struct dc_crtc_timing *timing, struct crtc_stereo_flags *flags)
+{
+	if (flags->PROGRAM_STEREO)
+		dcn10_enable_stereo(tg, timing, flags);
+	else
+		dcn10_disable_stereo(tg);
+}
+
+
+static bool dcn10_is_stereo_left_eye(struct timing_generator *tg)
+{
+	bool ret = false;
+	uint32_t left_eye = 0;
+	struct dcn10_timing_generator *tgn10 = DCN10TG_FROM_TG(tg);
+
+	REG_GET(OTG_STEREO_STATUS,
+		OTG_STEREO_CURRENT_EYE, &left_eye);
+	if (left_eye == 1)
+		ret = true;
+	else
+		ret = false;
+
+	return ret;
+}
+
 static struct timing_generator_funcs dcn10_tg_funcs = {
 		.validate_timing = tg_validate_timing,
 		.program_timing = tg_program_timing,
@@ -1183,7 +1163,9 @@ static struct timing_generator_funcs dcn10_tg_funcs = {
 		.enable_optc_clock = enable_optc_clock,
 		.set_drr = dcn10_timing_generator_set_drr,
 		.set_static_screen_control = set_static_screen_control,
-		.set_test_pattern = dcn10_timing_generator_set_test_pattern
+		.set_test_pattern = dcn10_timing_generator_set_test_pattern,
+		.program_stereo = dcn10_program_stereo,
+		.is_stereo_left_eye = dcn10_is_stereo_left_eye
 };
 
 void dcn10_timing_generator_init(struct dcn10_timing_generator *tgn10)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.h
index 85a763a..c880fa5 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.h
@@ -51,6 +51,7 @@
 	SRI(OTG_CONTROL, OTG, inst),\
 	SRI(OTG_STEREO_CONTROL, OTG, inst),\
 	SRI(OTG_3D_STRUCTURE_CONTROL, OTG, inst),\
+	SRI(OTG_STEREO_STATUS, OTG, inst),\
 	SRI(OTG_V_TOTAL_MAX, OTG, inst),\
 	SRI(OTG_V_TOTAL_MIN, OTG, inst),\
 	SRI(OTG_V_TOTAL_CONTROL, OTG, inst),\
@@ -96,6 +97,7 @@ struct dcn_tg_registers {
 	uint32_t OTG_CONTROL;
 	uint32_t OTG_STEREO_CONTROL;
 	uint32_t OTG_3D_STRUCTURE_CONTROL;
+	uint32_t OTG_STEREO_STATUS;
 	uint32_t OTG_V_TOTAL_MAX;
 	uint32_t OTG_V_TOTAL_MIN;
 	uint32_t OTG_V_TOTAL_CONTROL;
@@ -157,6 +159,8 @@ struct dcn_tg_registers {
 	SF(OTG0_OTG_STEREO_CONTROL, OTG_STEREO_SYNC_OUTPUT_POLARITY, mask_sh),\
 	SF(OTG0_OTG_STEREO_CONTROL, OTG_STEREO_EYE_FLAG_POLARITY, mask_sh),\
 	SF(OTG0_OTG_STEREO_CONTROL, OTG_DISABLE_STEREOSYNC_OUTPUT_FOR_DP, mask_sh),\
+	SF(OTG0_OTG_STEREO_CONTROL, OTG_DISABLE_STEREOSYNC_OUTPUT_FOR_DP, mask_sh),\
+	SF(OTG0_OTG_STEREO_STATUS, OTG_STEREO_CURRENT_EYE, mask_sh),\
 	SF(OTG0_OTG_3D_STRUCTURE_CONTROL, OTG_3D_STRUCTURE_EN, mask_sh),\
 	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),\
@@ -243,6 +247,7 @@ struct dcn_tg_registers {
 	type OTG_STEREO_SYNC_OUTPUT_LINE_NUM;\
 	type OTG_STEREO_SYNC_OUTPUT_POLARITY;\
 	type OTG_STEREO_EYE_FLAG_POLARITY;\
+	type OTG_STEREO_CURRENT_EYE;\
 	type OTG_DISABLE_STEREOSYNC_OUTPUT_FOR_DP;\
 	type OTG_3D_STRUCTURE_EN;\
 	type OTG_3D_STRUCTURE_V_UPDATE_MODE;\
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h
index 9f130af..2b72d1d 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h
@@ -100,6 +100,15 @@ struct _dlg_otg_param {
 	enum signal_type signal;
 };
 #endif
+
+struct crtc_stereo_flags {
+	uint8_t PROGRAM_STEREO         : 1;
+	uint8_t PROGRAM_POLARITY       : 1;
+	uint8_t RIGHT_EYE_POLARITY     : 1;
+	uint8_t FRAME_PACKED           : 1;
+	uint8_t DISABLE_STEREO_DP_SYNC : 1;
+};
+
 struct timing_generator {
 	const struct timing_generator_funcs *funcs;
 	struct dc_bios *bp;
@@ -171,6 +180,9 @@ struct timing_generator_funcs {
 	void (*program_global_sync)(struct timing_generator *tg);
 	void (*enable_optc_clock)(struct timing_generator *tg, bool enable);
 #endif
+	void (*program_stereo)(struct timing_generator *tg,
+		const struct dc_crtc_timing *timing, struct crtc_stereo_flags *flags);
+	bool (*is_stereo_left_eye)(struct timing_generator *tg);
 };
 
 #endif
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
index 6f8733e..5288481 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h
@@ -143,6 +143,10 @@ struct hw_sequencer_funcs {
 			struct pipe_ctx *pipe_ctx,
 			struct validate_context *context,
 			struct core_dc *dc);
+
+	void (*setup_stereo)(
+			struct pipe_ctx *pipe_ctx,
+			struct core_dc *dc);
 };
 
 void color_space_to_black_color(
-- 
2.7.4