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From: <sunpeng.li-5C7GfCeVMHo@public.gmane.org>
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: Eryk Brol <eryk.brol-5C7GfCeVMHo@public.gmane.org>
Subject: [PATCH 08/26] drm/amd/display: Ensure DRR triggers in BP
Date: Mon, 27 May 2019 15:50:47 -0400	[thread overview]
Message-ID: <1558986665-12964-9-git-send-email-sunpeng.li@amd.com> (raw)
In-Reply-To: <1558986665-12964-1-git-send-email-sunpeng.li-5C7GfCeVMHo@public.gmane.org>

From: Eryk Brol <eryk.brol@amd.com>

[Why]
In the previous implementation DRR event sometimes came
in during FP2 region which is a keep-out zone. This
would cause the frame not to latch until the next frame
which resulted in heavy flicker. To fix this we need
to make sure that it triggers in the BP.

[How]
1. Remove DRR programming during flip
2. Setup manual trigger for DRR event and trigger it
after surface programming is complete

Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c  | 24 ++++++++++++----
 drivers/gpu/drm/amd/display/dc/core/dc.c           | 23 ++++++++++------
 drivers/gpu/drm/amd/display/dc/dc_stream.h         |  1 -
 .../drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c  |  4 +--
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c  | 32 ++++++++++++++++++++++
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h  | 31 +++++++++++++++++----
 .../drm/amd/display/dc/inc/hw/timing_generator.h   |  3 ++
 7 files changed, 96 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 72ea689..c10a398 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5216,6 +5216,11 @@ static void update_freesync_state_on_stream(
 		    amdgpu_dm_vrr_active(new_crtc_state)) {
 			mod_freesync_handle_v_update(dm->freesync_module,
 						     new_stream, &vrr_params);
+
+			/* Need to call this before the frame ends. */
+			dc_stream_adjust_vmin_vmax(dm->dc,
+						   new_crtc_state->stream,
+						   &vrr_params.adjust);
 		}
 	}
 
@@ -5554,11 +5559,6 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
 		}
 
 		if (acrtc_state->stream) {
-
-			if (acrtc_state->freesync_timing_changed)
-				bundle->stream_update.adjust =
-					&acrtc_state->stream->adjust;
-
 			if (acrtc_state->freesync_vrr_info_changed)
 				bundle->stream_update.vrr_infopacket =
 					&acrtc_state->stream->vrr_infopacket;
@@ -5579,6 +5579,20 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
 		if (acrtc_state->abm_level != dm_old_crtc_state->abm_level)
 			bundle->stream_update.abm_level = &acrtc_state->abm_level;
 
+		/*
+		 * If FreeSync state on the stream has changed then we need to
+		 * re-adjust the min/max bounds now that DC doesn't handle this
+		 * as part of commit.
+		 */
+		if (amdgpu_dm_vrr_active(dm_old_crtc_state) !=
+		    amdgpu_dm_vrr_active(acrtc_state)) {
+			spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
+			dc_stream_adjust_vmin_vmax(
+				dm->dc, acrtc_state->stream,
+				&acrtc_state->vrr_params.adjust);
+			spin_unlock_irqrestore(&pcrtc->dev->event_lock, flags);
+		}
+
 		mutex_lock(&dm->dc_lock);
 		dc_commit_updates_for_stream(dm->dc,
 						     bundle->surface_updates,
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 79c3a37..5012b675 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -263,7 +263,7 @@ bool dc_stream_adjust_vmin_vmax(struct dc *dc,
 	for (i = 0; i < MAX_PIPES; i++) {
 		struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i];
 
-		if (pipe->stream == stream && pipe->stream_res.stream_enc) {
+		if (pipe->stream == stream && pipe->stream_res.tg) {
 			pipe->stream->adjust = *adjust;
 			dc->hwss.set_drr(&pipe,
 					1,
@@ -1745,13 +1745,6 @@ static void commit_planes_do_stream_update(struct dc *dc,
 			pipe_ctx->stream &&
 			pipe_ctx->stream == stream) {
 
-			/* Fast update*/
-			// VRR program can be done as part of FAST UPDATE
-			if (stream_update->adjust)
-				dc->hwss.set_drr(&pipe_ctx, 1,
-					stream_update->adjust->v_total_min,
-					stream_update->adjust->v_total_max);
-
 			if (stream_update->periodic_interrupt0 &&
 					dc->hwss.setup_periodic_interrupt)
 				dc->hwss.setup_periodic_interrupt(pipe_ctx, VLINE0);
@@ -1909,6 +1902,20 @@ static void commit_planes_for_stream(struct dc *dc,
 
 		dc->hwss.pipe_control_lock(dc, top_pipe_to_program, false);
 	}
+
+	// Fire manual trigger
+	for (i = 0; i < dc->res_pool->pipe_count; i++) {
+		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
+
+		if (pipe_ctx->top_pipe ||
+			!pipe_ctx->stream ||
+			pipe_ctx->stream != stream ||
+			!srf_updates[i].flip_addr)
+			continue;
+
+		if (pipe_ctx->stream_res.tg->funcs->program_manual_trigger)
+			pipe_ctx->stream_res.tg->funcs->program_manual_trigger(pipe_ctx->stream_res.tg);
+	}
 }
 
 void dc_commit_updates_for_stream(struct dc *dc,
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index 189bdab..4da138d 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -172,7 +172,6 @@ struct dc_stream_update {
 	struct periodic_interrupt_config *periodic_interrupt0;
 	struct periodic_interrupt_config *periodic_interrupt1;
 
-	struct dc_crtc_timing_adjust *adjust;
 	struct dc_info_packet *vrr_infopacket;
 	struct dc_info_packet *vsc_infopacket;
 	struct dc_info_packet *vsp_infopacket;
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 7ee3c60..b5ca176 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
@@ -2506,8 +2506,8 @@ static void set_drr(struct pipe_ctx **pipe_ctx,
 {
 	int i = 0;
 	struct drr_params params = {0};
-	// DRR should set trigger event to monitor surface update event
-	unsigned int event_triggers = 0x80;
+	// DRR set trigger event mapped to OTG_TRIG_A (bit 11) for manual control flow
+	unsigned int event_triggers = 0x800;
 
 	params.vertical_total_max = vmax;
 	params.vertical_total_min = vmin;
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
index 533b0f3..e4b850a 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c
@@ -791,6 +791,32 @@ void optc1_set_static_screen_control(
 			OTG_STATIC_SCREEN_FRAME_COUNT, 2);
 }
 
+void optc1_setup_manual_trigger(struct timing_generator *optc)
+{
+	struct optc *optc1 = DCN10TG_FROM_TG(optc);
+
+	REG_SET(OTG_GLOBAL_CONTROL2, 0,
+			MANUAL_FLOW_CONTROL_SEL, optc->inst);
+
+	REG_SET_8(OTG_TRIGA_CNTL, 0,
+			OTG_TRIGA_SOURCE_SELECT, 22,
+			OTG_TRIGA_SOURCE_PIPE_SELECT, optc->inst,
+			OTG_TRIGA_RISING_EDGE_DETECT_CNTL, 1,
+			OTG_TRIGA_FALLING_EDGE_DETECT_CNTL, 0,
+			OTG_TRIGA_POLARITY_SELECT, 0,
+			OTG_TRIGA_FREQUENCY_SELECT, 0,
+			OTG_TRIGA_DELAY, 0,
+			OTG_TRIGA_CLEAR, 1);
+}
+
+void optc1_program_manual_trigger(struct timing_generator *optc)
+{
+	struct optc *optc1 = DCN10TG_FROM_TG(optc);
+
+	REG_SET(OTG_MANUAL_FLOW_CONTROL, 0,
+			MANUAL_FLOW_CONTROL, 1);
+}
+
 
 /**
  *****************************************************************************
@@ -823,6 +849,10 @@ void optc1_set_drr(
 				OTG_FORCE_LOCK_ON_EVENT, 0,
 				OTG_SET_V_TOTAL_MIN_MASK_EN, 0,
 				OTG_SET_V_TOTAL_MIN_MASK, 0);
+
+		// Setup manual flow control for EOF via TRIG_A
+		optc->funcs->setup_manual_trigger(optc);
+
 	} else {
 		REG_UPDATE_4(OTG_V_TOTAL_CONTROL,
 				OTG_SET_V_TOTAL_MIN_MASK, 0,
@@ -1458,6 +1488,8 @@ static const struct timing_generator_funcs dcn10_tg_funcs = {
 		.get_crc = optc1_get_crc,
 		.configure_crc = optc1_configure_crc,
 		.set_vtg_params = optc1_set_vtg_params,
+		.program_manual_trigger = optc1_program_manual_trigger,
+		.setup_manual_trigger = optc1_setup_manual_trigger
 };
 
 void dcn10_timing_generator_init(struct optc *optc1)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h
index 70fd56f..444c56c 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.h
@@ -85,13 +85,17 @@
 	SRI(OTG_CRC0_WINDOWA_Y_CONTROL, OTG, inst),\
 	SRI(OTG_CRC0_WINDOWB_X_CONTROL, OTG, inst),\
 	SRI(OTG_CRC0_WINDOWB_Y_CONTROL, OTG, inst),\
-	SR(GSL_SOURCE_SELECT)
+	SR(GSL_SOURCE_SELECT),\
+	SRI(OTG_GLOBAL_CONTROL2, OTG, inst),\
+	SRI(OTG_TRIGA_MANUAL_TRIG, OTG, inst)
+
 
 #define TG_COMMON_REG_LIST_DCN1_0(inst) \
 	TG_COMMON_REG_LIST_DCN(inst),\
 	SRI(OTG_TEST_PATTERN_PARAMETERS, OTG, inst),\
 	SRI(OTG_TEST_PATTERN_CONTROL, OTG, inst),\
-	SRI(OTG_TEST_PATTERN_COLOR, OTG, inst)
+	SRI(OTG_TEST_PATTERN_COLOR, OTG, inst),\
+	SRI(OTG_MANUAL_FLOW_CONTROL, OTG, inst)
 
 
 struct dcn_optc_registers {
@@ -125,6 +129,8 @@ struct dcn_optc_registers {
 	uint32_t OTG_V_TOTAL_MIN;
 	uint32_t OTG_V_TOTAL_CONTROL;
 	uint32_t OTG_TRIGA_CNTL;
+	uint32_t OTG_TRIGA_MANUAL_TRIG;
+	uint32_t OTG_MANUAL_FLOW_CONTROL;
 	uint32_t OTG_FORCE_COUNT_NOW_CNTL;
 	uint32_t OTG_STATIC_SCREEN_CONTROL;
 	uint32_t OTG_STATUS_FRAME_COUNT;
@@ -215,6 +221,11 @@ struct dcn_optc_registers {
 	SF(OTG0_OTG_TRIGA_CNTL, OTG_TRIGA_SOURCE_PIPE_SELECT, mask_sh),\
 	SF(OTG0_OTG_TRIGA_CNTL, OTG_TRIGA_RISING_EDGE_DETECT_CNTL, mask_sh),\
 	SF(OTG0_OTG_TRIGA_CNTL, OTG_TRIGA_FALLING_EDGE_DETECT_CNTL, mask_sh),\
+	SF(OTG0_OTG_TRIGA_CNTL, OTG_TRIGA_POLARITY_SELECT, mask_sh),\
+	SF(OTG0_OTG_TRIGA_CNTL, OTG_TRIGA_FREQUENCY_SELECT, mask_sh),\
+	SF(OTG0_OTG_TRIGA_CNTL, OTG_TRIGA_DELAY, mask_sh),\
+	SF(OTG0_OTG_TRIGA_CNTL, OTG_TRIGA_CLEAR, mask_sh),\
+	SF(OTG0_OTG_TRIGA_MANUAL_TRIG, OTG_TRIGA_MANUAL_TRIG, mask_sh),\
 	SF(OTG0_OTG_STATIC_SCREEN_CONTROL, OTG_STATIC_SCREEN_EVENT_MASK, mask_sh),\
 	SF(OTG0_OTG_STATIC_SCREEN_CONTROL, OTG_STATIC_SCREEN_FRAME_COUNT, mask_sh),\
 	SF(OTG0_OTG_STATUS_FRAME_COUNT, OTG_FRAME_COUNT, mask_sh),\
@@ -271,8 +282,8 @@ struct dcn_optc_registers {
 	SF(OTG0_OTG_CRC0_WINDOWB_Y_CONTROL, OTG_CRC0_WINDOWB_Y_END, mask_sh),\
 	SF(GSL_SOURCE_SELECT, GSL0_READY_SOURCE_SEL, mask_sh),\
 	SF(GSL_SOURCE_SELECT, GSL1_READY_SOURCE_SEL, mask_sh),\
-	SF(GSL_SOURCE_SELECT, GSL2_READY_SOURCE_SEL, mask_sh)
-
+	SF(GSL_SOURCE_SELECT, GSL2_READY_SOURCE_SEL, mask_sh),\
+	SF(OTG0_OTG_GLOBAL_CONTROL2, MANUAL_FLOW_CONTROL_SEL, mask_sh)
 
 #define TG_COMMON_MASK_SH_LIST_DCN1_0(mask_sh)\
 	TG_COMMON_MASK_SH_LIST_DCN(mask_sh),\
@@ -287,7 +298,8 @@ struct dcn_optc_registers {
 	SF(OTG0_OTG_TEST_PATTERN_CONTROL, OTG_TEST_PATTERN_COLOR_FORMAT, mask_sh),\
 	SF(OTG0_OTG_TEST_PATTERN_COLOR, OTG_TEST_PATTERN_MASK, mask_sh),\
 	SF(OTG0_OTG_TEST_PATTERN_COLOR, OTG_TEST_PATTERN_DATA, mask_sh),\
-	SF(ODM0_OPTC_DATA_SOURCE_SELECT, OPTC_SRC_SEL, mask_sh)
+	SF(ODM0_OPTC_DATA_SOURCE_SELECT, OPTC_SRC_SEL, mask_sh),\
+	SF(OTG0_OTG_MANUAL_FLOW_CONTROL, MANUAL_FLOW_CONTROL, mask_sh),\
 
 #define TG_REG_FIELD_LIST_DCN1_0(type) \
 	type VSTARTUP_START;\
@@ -343,6 +355,11 @@ struct dcn_optc_registers {
 	type OTG_TRIGA_SOURCE_PIPE_SELECT;\
 	type OTG_TRIGA_RISING_EDGE_DETECT_CNTL;\
 	type OTG_TRIGA_FALLING_EDGE_DETECT_CNTL;\
+	type OTG_TRIGA_POLARITY_SELECT;\
+	type OTG_TRIGA_FREQUENCY_SELECT;\
+	type OTG_TRIGA_DELAY;\
+	type OTG_TRIGA_CLEAR;\
+	type OTG_TRIGA_MANUAL_TRIG;\
 	type OTG_STATIC_SCREEN_EVENT_MASK;\
 	type OTG_STATIC_SCREEN_FRAME_COUNT;\
 	type OTG_FRAME_COUNT;\
@@ -421,7 +438,9 @@ struct dcn_optc_registers {
 	type OTG_CRC0_WINDOWB_Y_END;\
 	type GSL0_READY_SOURCE_SEL;\
 	type GSL1_READY_SOURCE_SEL;\
-	type GSL2_READY_SOURCE_SEL;
+	type GSL2_READY_SOURCE_SEL;\
+	type MANUAL_FLOW_CONTROL;\
+	type MANUAL_FLOW_CONTROL_SEL;
 
 
 #define TG_REG_FIELD_LIST(type) \
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 0b8c6896..a89d0cf 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
@@ -238,6 +238,9 @@ struct timing_generator_funcs {
 	bool (*get_crc)(struct timing_generator *tg,
 			uint32_t *r_cr, uint32_t *g_y, uint32_t *b_cb);
 
+	void (*program_manual_trigger)(struct timing_generator *optc);
+	void (*setup_manual_trigger)(struct timing_generator *optc);
+
 	void (*set_vtg_params)(struct timing_generator *optc,
 			const struct dc_crtc_timing *dc_crtc_timing);
 };
-- 
2.7.4

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  parent reply	other threads:[~2019-05-27 19:50 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-27 19:50 [PATCH 00/26] DC Patches 27 May 2019 sunpeng.li-5C7GfCeVMHo
     [not found] ` <1558986665-12964-1-git-send-email-sunpeng.li-5C7GfCeVMHo@public.gmane.org>
2019-05-27 19:50   ` [PATCH 01/26] drm/amd/display: make clk mgr soc specific sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 02/26] drm/amd/display: Don't use ROM for output TF if GAMMA_CS_TFM_1D sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 03/26] drm/amd/display: Implement CM dealpha and bias interfaces sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 04/26] drm/amd/display: Move CLK_BASE_INNER macro sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 05/26] drm/amd/display: assign new stream id in dc_copy_stream sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 06/26] drm/amd/display: Disable audio stream only if it's currently enabled sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 07/26] drm/amd/display: Add GSL source select registers sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` sunpeng.li-5C7GfCeVMHo [this message]
2019-05-27 19:50   ` [PATCH 09/26] drm/amd/display: disable PSR/ABM before destroy DMCU struct sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 10/26] drm/amd/display: move clk_mgr files to right place sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 11/26] drm/amd/display: Add min_dcfclk_mhz field to bb overrides sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 12/26] drm/amd/display: Move link functions from dc to dc_link sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 13/26] drm/amd/display: 3.2.32 sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 14/26] drm/amd/display: fix calculation of total_data_read_bandwidth sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 15/26] drm/amd/display: fix crash on setmode when mode is close to bw limit sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 16/26] drm/amd/display: do not power on eDP power rail early sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 17/26] drm/amd/display: Fix type of pp_smu_wm_set_range struct sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 18/26] drm/amd/display: Refactor clk_mgr functions sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 19/26] drm/amd/display: Add writeback_config to VBA vars sunpeng.li-5C7GfCeVMHo
2019-05-27 19:50   ` [PATCH 20/26] drm/amd/display: Modified AUX_DPHY_RX_CONTROL0 sunpeng.li-5C7GfCeVMHo
2019-05-27 19:51   ` [PATCH 21/26] drm/amd/display: Refactor DIO stream encoder sunpeng.li-5C7GfCeVMHo
2019-05-27 19:51   ` [PATCH 22/26] drm/amd/display: fix issues with bad AUX reply on some displays sunpeng.li-5C7GfCeVMHo
2019-05-27 19:51   ` [PATCH 23/26] drm/amd/display: Increase Backlight Gain Step Size sunpeng.li-5C7GfCeVMHo
2019-05-27 19:51   ` [PATCH 24/26] drm/amd/display: Reset planes for color management changes sunpeng.li-5C7GfCeVMHo
2019-05-27 19:51   ` [PATCH 25/26] drm/amd/display: CS_TFM_1D only applied post EOTF sunpeng.li-5C7GfCeVMHo
2019-05-27 19:51   ` [PATCH 26/26] drm/amd/display: program manual trigger only for bottom most pipe sunpeng.li-5C7GfCeVMHo

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