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From: Mikita Lipski <mikita.lipski@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: <Harry.Wentland@amd.com>, <Sunpeng.Li@amd.com>,
	<Bhawanpreet.Lakha@amd.com>, <Rodrigo.Siqueira@amd.com>,
	<Aurabindo.Pillai@amd.com>, <qingqing.zhuo@amd.com>,
	<mikita.lipski@amd.com>,  <roman.li@amd.com>,
	<Anson.Jacob@amd.com>, <wayne.lin@amd.com>, <stylon.wang@amd.com>,
	<solomon.chiu@amd.com>,
	Aurabindo Pillai <aurabindo.pillai@amd.com>
Subject: [PATCH 08/33] drm/amd/display: Add flag to detect dpms force off during HPD
Date: Wed, 8 Sep 2021 10:53:59 -0400	[thread overview]
Message-ID: <20210908145424.3311-9-mikita.lipski@amd.com> (raw)
In-Reply-To: <20210908145424.3311-1-mikita.lipski@amd.com>

From: Aurabindo Pillai <aurabindo.pillai@amd.com>

[Why] When a connector is unplugged, dpms is forced off so that some
connector allocations are cleared off. This is done outside the commit
sequence from the userspace. This causes HUBP blank. Due to the blank
hubp, a non blocking commit which queues flip will encounter a timeout
waiting for the flip_done because prior to writing the surface flip
address, hubp was in blank.

[How] Add a marker to DM's crtc state and use this field to indicate
whether dpms was forced off during an HPD. Check for this marker before
queuing the flip.

Reviewed-by: Anson Jacob <Anson.Jacob@amd.com>
Acked-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 19 +++++++++++++------
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h |  2 ++
 .../amd/display/amdgpu_dm/amdgpu_dm_hdcp.c    | 18 ++++++++++++++----
 3 files changed, 29 insertions(+), 10 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 c8ef72702e60..a6c8c30f8c2d 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2409,7 +2409,7 @@ static void dm_gpureset_commit_state(struct dc_state *dc_state,
 	return;
 }
 
-static void dm_set_dpms_off(struct dc_link *link)
+static void dm_set_dpms_off(struct dc_link *link, struct dm_crtc_state *acrtc_state)
 {
 	struct dc_stream_state *stream_state;
 	struct amdgpu_dm_connector *aconnector = link->priv;
@@ -2430,6 +2430,7 @@ static void dm_set_dpms_off(struct dc_link *link)
 	}
 
 	stream_update.stream = stream_state;
+	acrtc_state->force_dpms_off = true;
 	dc_commit_updates_for_stream(stream_state->ctx->dc, NULL, 0,
 				     stream_state, &stream_update,
 				     stream_state->ctx->dc->current_state);
@@ -2873,13 +2874,16 @@ static void handle_hpd_irq_helper(struct amdgpu_dm_connector *aconnector)
 	struct drm_device *dev = connector->dev;
 	enum dc_connection_type new_connection_type = dc_connection_none;
 	struct amdgpu_device *adev = drm_to_adev(dev);
-#ifdef CONFIG_DRM_AMD_DC_HDCP
 	struct dm_connector_state *dm_con_state = to_dm_connector_state(connector->state);
-#endif
+	struct dm_crtc_state *dm_crtc_state = NULL;
 
 	if (adev->dm.disable_hpd_irq)
 		return;
 
+	if (dm_con_state->base.state && dm_con_state->base.crtc)
+		dm_crtc_state = to_dm_crtc_state(drm_atomic_get_crtc_state(
+					dm_con_state->base.state,
+					dm_con_state->base.crtc));
 	/*
 	 * In case of failure or MST no need to update connector status or notify the OS
 	 * since (for MST case) MST does this in its own context.
@@ -2911,8 +2915,9 @@ static void handle_hpd_irq_helper(struct amdgpu_dm_connector *aconnector)
 
 	} else if (dc_link_detect(aconnector->dc_link, DETECT_REASON_HPD)) {
 		if (new_connection_type == dc_connection_none &&
-		    aconnector->dc_link->type == dc_connection_none)
-			dm_set_dpms_off(aconnector->dc_link);
+		    aconnector->dc_link->type == dc_connection_none &&
+		    dm_crtc_state)
+			dm_set_dpms_off(aconnector->dc_link, dm_crtc_state);
 
 		amdgpu_dm_update_connector_after_detect(aconnector);
 
@@ -6253,6 +6258,7 @@ dm_crtc_duplicate_state(struct drm_crtc *crtc)
 	state->freesync_config = cur->freesync_config;
 	state->cm_has_degamma = cur->cm_has_degamma;
 	state->cm_is_degamma_srgb = cur->cm_is_degamma_srgb;
+	state->force_dpms_off = cur->force_dpms_off;
 	/* TODO Duplicate dc_stream after objects are stream object is flattened */
 
 	return &state->base;
@@ -8914,7 +8920,8 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
 		 * and rely on sending it from software.
 		 */
 		if (acrtc_attach->base.state->event &&
-		    acrtc_state->active_planes > 0) {
+		    acrtc_state->active_planes > 0 &&
+		    !acrtc_state->force_dpms_off) {
 			drm_crtc_vblank_get(pcrtc);
 
 			spin_lock_irqsave(&pcrtc->dev->event_lock, flags);
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
index a038c70037b5..a85b09986aab 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -629,6 +629,8 @@ struct dm_crtc_state {
 
 	bool dsc_force_changed;
 	bool vrr_supported;
+
+	bool force_dpms_off;
 	struct mod_freesync_config freesync_config;
 	struct dc_info_packet vrr_infopacket;
 
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
index c5f1dc3b5961..c5f61be1f6b5 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
@@ -448,6 +448,10 @@ static void update_config(void *handle, struct cp_psp_stream_config *config)
 	struct mod_hdcp_display *display = &hdcp_work[link_index].display;
 	struct mod_hdcp_link *link = &hdcp_work[link_index].link;
 	struct drm_connector_state *conn_state;
+	struct dc_sink *sink = NULL;
+#if defined(CONFIG_DRM_AMD_DC_DCN3_1)
+	bool link_is_hdcp14 = false;
+#endif
 
 	if (config->dpms_off) {
 		hdcp_remove_display(hdcp_work, link_index, aconnector);
@@ -460,8 +464,13 @@ static void update_config(void *handle, struct cp_psp_stream_config *config)
 	display->index = aconnector->base.index;
 	display->state = MOD_HDCP_DISPLAY_ACTIVE;
 
-	if (aconnector->dc_sink != NULL)
-		link->mode = mod_hdcp_signal_type_to_operation_mode(aconnector->dc_sink->sink_signal);
+	if (aconnector->dc_sink)
+		sink = aconnector->dc_sink;
+	else if (aconnector->dc_em_sink)
+		sink = aconnector->dc_em_sink;
+
+	if (sink != NULL)
+		link->mode = mod_hdcp_signal_type_to_operation_mode(sink->sink_signal);
 
 	display->controller = CONTROLLER_ID_D0 + config->otg_inst;
 	display->dig_fe = config->dig_fe;
@@ -470,8 +479,9 @@ static void update_config(void *handle, struct cp_psp_stream_config *config)
 	display->stream_enc_idx = config->stream_enc_idx;
 	link->link_enc_idx = config->link_enc_idx;
 	link->phy_idx = config->phy_idx;
-	link->hdcp_supported_informational = dc_link_is_hdcp14(aconnector->dc_link,
-			aconnector->dc_sink->sink_signal) ? 1 : 0;
+	if (sink)
+		link_is_hdcp14 = dc_link_is_hdcp14(aconnector->dc_link, sink->sink_signal);
+	link->hdcp_supported_informational = link_is_hdcp14;
 	link->dp.rev = aconnector->dc_link->dpcd_caps.dpcd_rev.raw;
 	link->dp.assr_enabled = config->assr_enabled;
 	link->dp.mst_enabled = config->mst_enabled;
-- 
2.25.1


  parent reply	other threads:[~2021-09-08 14:54 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-08 14:53 [PATCH 00/33] DC Patches September 08, 2021 Mikita Lipski
2021-09-08 14:53 ` [PATCH 01/33] drm/amd/display: Add DPCD writes at key points Mikita Lipski
2021-09-08 14:53 ` [PATCH 02/33] drm/amd/display: Fix system hang at boot Mikita Lipski
2021-09-08 14:53 ` [PATCH 03/33] drm/amd/display: move bpp range decision in decide dsc bw range function Mikita Lipski
2021-09-08 14:53 ` [PATCH 04/33] drm/amd/display: update conditions to do dfp cap ext validation Mikita Lipski
2021-09-08 14:53 ` [PATCH 05/33] drm/amd/display: Add option to defer works of hpd_rx_irq Mikita Lipski
2021-09-08 14:53 ` [PATCH 06/33] drm/amd/display: Fork thread to offload work " Mikita Lipski
2021-09-08 14:53 ` [PATCH 07/33] drm/amd/display: unblock abm when odm is enabled only on configs that support it Mikita Lipski
2021-09-08 14:53 ` Mikita Lipski [this message]
2021-09-08 14:54 ` [PATCH 09/33] drm/amd/display: Fix dynamic link encoder access Mikita Lipski
2021-09-08 14:54 ` [PATCH 10/33] drm/amd/display: Fix false BAD_FREE warning from Coverity Mikita Lipski
2021-09-08 14:54 ` [PATCH 11/33] drm/amd/display: Fix for null pointer access for ddc pin and aux engine Mikita Lipski
2021-09-08 14:54 ` [PATCH 12/33] drm/amd/display: [FW Promotion] Release 0.0.81 Mikita Lipski
2021-09-08 14:54 ` [PATCH 13/33] drm/amd/display: Revert "dc: w/a for hard hang on HPD on native DP" Mikita Lipski
2021-09-08 14:54 ` [PATCH 14/33] drm/amd/display: 3.2.151 Mikita Lipski
2021-09-08 14:54 ` [PATCH 15/33] drm/amd/display: Fix multiple memory leaks reported by coverity Mikita Lipski
2021-09-08 14:54 ` [PATCH 16/33] drm/amd/display: Get backlight from PWM if DMCU is not initialized Mikita Lipski
2021-09-08 14:54   ` Mikita Lipski
2021-09-08 14:54 ` [PATCH 17/33] drm/amd/display: Revert "Directly retrain link from debugfs" Mikita Lipski
2021-09-08 14:54 ` [PATCH 18/33] drm/amd/display: Add regamma/degamma coefficients and set sRGB when TF is BT709 Mikita Lipski
2021-09-08 14:54 ` [PATCH 19/33] drm/amd/display: Apply w/a for hard hang on HPD Mikita Lipski
2021-09-08 14:54 ` [PATCH 20/33] drm/amd/display: Optimize bandwidth on following fast update Mikita Lipski
2021-09-08 14:54 ` [PATCH 21/33] drm/amd/display: Refine condition of cursor visibility for pipe-split Mikita Lipski
2021-09-08 14:54 ` [PATCH 22/33] drm/amd/display: dsc mst 2 4K displays go dark with 2 lane HBR3 Mikita Lipski
2021-09-08 14:54   ` Mikita Lipski
2021-09-08 14:54 ` [PATCH 23/33] drm/amd/display: Add periodic detection when zstate is enabled Mikita Lipski
2021-09-08 14:54 ` [PATCH 24/33] drm/amd/display: Add helper for blanking all dp displays Mikita Lipski
2021-09-08 14:54 ` [PATCH 25/33] drm/amd/display: [FW Promotion] Release 0.0.82 Mikita Lipski
2021-09-08 14:54 ` [PATCH 26/33] drm/amd/display: Correct degamma coefficients Mikita Lipski
2021-09-08 14:54 ` [PATCH 27/33] drm/amd/display: 3.2.152 Mikita Lipski
2021-09-08 14:54 ` [PATCH 28/33] drm/amd/display: Fix unstable HPCP compliance on Chrome Barcelo Mikita Lipski
2021-09-08 14:54 ` [PATCH 29/33] drm/amd/display: Link training retry fix for abort case Mikita Lipski
2021-09-08 14:54 ` [PATCH 30/33] drm/amd/display: Revert adding degamma coefficients Mikita Lipski
2021-09-08 14:54 ` [PATCH 31/33] drm/amd/display: Add VPG and AFMT low power support for DCN3.1 Mikita Lipski
2021-09-08 14:54 ` [PATCH 32/33] drm/amd/display: remove force_enable_edp_fec param Mikita Lipski
2021-09-08 14:54 ` [PATCH 33/33] drm/amd/display: Enable mem low power control for DCN3.1 sub-IP blocks Mikita Lipski
2021-09-10 15:11 ` [PATCH 00/33] DC Patches September 08, 2021 Wheeler, Daniel

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