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From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
To: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: [PATCH 1/3] drm/i915: Convert intel_tv connector properties to atomic, v3.
Date: Wed, 15 Mar 2017 11:08:56 +0100	[thread overview]
Message-ID: <21a8348b-aca9-3c19-3a3d-9ed766053eb9@linux.intel.com> (raw)
In-Reply-To: <20170314183625.GQ31595@intel.com>

As a proof of concept, first try to convert intel_tv, which is a rarely
used connector. It has 5 properties, tv format and 4 margins.

I'm less certain about the state behavior itself, should we pass a size
parameter to intel_connector_alloc instead, so duplicate_state
can be done globally if it can be blindly copied?

Can we also have a atomic_check function for connectors, so the
crtc_state->connectors_changed can be set there? It would be cleaner
and more atomic-like.

To match the legacy behavior, format can be changed by probing just like
in legacy mode.

Changes since v1:
- Add intel_encoder->swap_state to allow updating connector state.
- Add intel_tv->format for detect_mode and mode_valid, updated on atomic commit.
Changes since v2:
- Fix typo in tv_choose_preferred modes function name.
- Assignment of tv properties is done in core, so intel_tv only needs
  a atomic_check function. Thanks Ville!

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c |  15 +++
 drivers/gpu/drm/i915/intel_drv.h     |   4 +
 drivers/gpu/drm/i915/intel_tv.c      | 200 ++++++++++++++++-------------------
 3 files changed, 110 insertions(+), 109 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index ac25c9bc8b81..18b7e7546ee1 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12954,6 +12954,20 @@ static void intel_atomic_track_fbs(struct drm_atomic_state *state)
 				  to_intel_plane(plane)->frontbuffer_bit);
 }
 
+static void swap_connector_state(struct drm_atomic_state *state)
+{
+	struct drm_connector *connector;
+	struct drm_connector_state *new_conn_state;
+	int i;
+
+	for_each_new_connector_in_state(state, connector, new_conn_state, i) {
+		struct intel_connector *conn = to_intel_connector(connector);
+
+		if (conn->swap_state)
+			conn->swap_state(conn, new_conn_state);
+	}
+}
+
 /**
  * intel_atomic_commit - commit validated state object
  * @dev: DRM device
@@ -13012,6 +13026,7 @@ static int intel_atomic_commit(struct drm_device *dev,
 		dev_priv->cdclk.logical = intel_state->cdclk.logical;
 		dev_priv->cdclk.actual = intel_state->cdclk.actual;
 	}
+	swap_connector_state(state);
 
 	drm_atomic_state_get(state);
 	INIT_WORK(&state->commit_work,
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 937623ff6d7c..b7b93799d288 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -307,6 +307,10 @@ struct intel_connector {
 	 * and active (i.e. dpms ON state). */
 	bool (*get_hw_state)(struct intel_connector *);
 
+	/* Update device state with the new atomic state. */
+	void (*swap_state)(struct intel_connector *,
+			     struct drm_connector_state *);
+
 	/* Panel info for eDP and LVDS */
 	struct intel_panel panel;
 
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index 6ed1a3ce47b7..eeed17e6741a 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -48,8 +48,6 @@ struct intel_tv {
 	struct intel_encoder base;
 
 	int type;
-	const char *tv_format;
-	int margin[4];
 	u32 save_TV_H_CTL_1;
 	u32 save_TV_H_CTL_2;
 	u32 save_TV_H_CTL_3;
@@ -83,6 +81,8 @@ struct intel_tv {
 
 	u32 save_TV_DAC;
 	u32 save_TV_CTL;
+
+	int format;
 };
 
 struct video_levels {
@@ -848,6 +848,15 @@ intel_tv_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe)
 }
 
 static void
+intel_tv_swap_state(struct intel_connector *connector,
+		    struct drm_connector_state *conn_state)
+{
+	struct intel_tv *intel_tv = intel_attached_tv(&connector->base);
+
+	intel_tv->format = conn_state->tv.mode;
+}
+
+static void
 intel_enable_tv(struct intel_encoder *encoder,
 		struct intel_crtc_state *pipe_config,
 		struct drm_connector_state *conn_state)
@@ -873,32 +882,25 @@ intel_disable_tv(struct intel_encoder *encoder,
 	I915_WRITE(TV_CTL, I915_READ(TV_CTL) & ~TV_ENC_ENABLE);
 }
 
-static const struct tv_mode *
-intel_tv_mode_lookup(const char *tv_format)
+static const struct tv_mode *intel_tv_mode_find(struct drm_connector_state *conn_state)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(tv_modes); i++) {
-		const struct tv_mode *tv_mode = &tv_modes[i];
+	int format = conn_state->tv.mode;
 
-		if (!strcmp(tv_format, tv_mode->name))
-			return tv_mode;
-	}
-	return NULL;
+	return &tv_modes[format];
 }
 
-static const struct tv_mode *
-intel_tv_mode_find(struct intel_tv *intel_tv)
+static const struct tv_mode *intel_tv_mode_find_committed(struct drm_connector *connector)
 {
-	return intel_tv_mode_lookup(intel_tv->tv_format);
+	int format = intel_attached_tv(connector)->format;
+
+	return &tv_modes[format];
 }
 
 static enum drm_mode_status
 intel_tv_mode_valid(struct drm_connector *connector,
 		    struct drm_display_mode *mode)
 {
-	struct intel_tv *intel_tv = intel_attached_tv(connector);
-	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
+	const struct tv_mode *tv_mode = intel_tv_mode_find_committed(connector);
 	int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
 
 	if (mode->clock > max_dotclk)
@@ -925,8 +927,7 @@ intel_tv_compute_config(struct intel_encoder *encoder,
 			struct intel_crtc_state *pipe_config,
 			struct drm_connector_state *conn_state)
 {
-	struct intel_tv *intel_tv = enc_to_tv(encoder);
-	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
+	const struct tv_mode *tv_mode = intel_tv_mode_find(conn_state);
 
 	if (!tv_mode)
 		return false;
@@ -1032,7 +1033,7 @@ static void intel_tv_pre_enable(struct intel_encoder *encoder,
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
 	struct intel_tv *intel_tv = enc_to_tv(encoder);
-	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
+	const struct tv_mode *tv_mode = intel_tv_mode_find(conn_state);
 	u32 tv_ctl;
 	u32 scctl1, scctl2, scctl3;
 	int i, j;
@@ -1135,12 +1136,12 @@ static void intel_tv_pre_enable(struct intel_encoder *encoder,
 	else
 		ysize = 2*tv_mode->nbr_end + 1;
 
-	xpos += intel_tv->margin[TV_MARGIN_LEFT];
-	ypos += intel_tv->margin[TV_MARGIN_TOP];
-	xsize -= (intel_tv->margin[TV_MARGIN_LEFT] +
-		  intel_tv->margin[TV_MARGIN_RIGHT]);
-	ysize -= (intel_tv->margin[TV_MARGIN_TOP] +
-		  intel_tv->margin[TV_MARGIN_BOTTOM]);
+	xpos += conn_state->tv.margins.left;
+	ypos += conn_state->tv.margins.top;
+	xsize -= (conn_state->tv.margins.left +
+		  conn_state->tv.margins.right);
+	ysize -= (conn_state->tv.margins.top +
+		  conn_state->tv.margins.bottom);
 	I915_WRITE(TV_WIN_POS, (xpos<<16)|ypos);
 	I915_WRITE(TV_WIN_SIZE, (xsize<<16)|ysize);
 
@@ -1288,7 +1289,7 @@ intel_tv_detect_type(struct intel_tv *intel_tv,
 static void intel_tv_find_better_format(struct drm_connector *connector)
 {
 	struct intel_tv *intel_tv = intel_attached_tv(connector);
-	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
+	const struct tv_mode *tv_mode = intel_tv_mode_find(connector->state);
 	int i;
 
 	if ((intel_tv->type == DRM_MODE_CONNECTOR_Component) ==
@@ -1304,9 +1305,8 @@ static void intel_tv_find_better_format(struct drm_connector *connector)
 			break;
 	}
 
-	intel_tv->tv_format = tv_mode->name;
-	drm_object_property_set_value(&connector->base,
-		connector->dev->mode_config.tv_mode_property, i);
+	connector->state->tv.mode = i;
+	intel_attached_tv(connector)->format = i;
 }
 
 /**
@@ -1344,18 +1344,17 @@ intel_tv_detect(struct drm_connector *connector, bool force)
 		} else
 			status = connector_status_unknown;
 
+		if (status == connector_status_connected) {
+			intel_tv->type = type;
+			intel_tv_find_better_format(connector);
+		}
+
 		drm_modeset_drop_locks(&ctx);
 		drm_modeset_acquire_fini(&ctx);
-	} else
-		return connector->status;
 
-	if (status != connector_status_connected)
 		return status;
-
-	intel_tv->type = type;
-	intel_tv_find_better_format(connector);
-
-	return connector_status_connected;
+	} else
+		return connector->status;
 }
 
 static const struct input_res {
@@ -1375,12 +1374,9 @@ static const struct input_res {
  * Chose preferred mode  according to line number of TV format
  */
 static void
-intel_tv_chose_preferred_modes(struct drm_connector *connector,
+intel_tv_choose_preferred_modes(const struct tv_mode *tv_mode,
 			       struct drm_display_mode *mode_ptr)
 {
-	struct intel_tv *intel_tv = intel_attached_tv(connector);
-	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
-
 	if (tv_mode->nbr_end < 480 && mode_ptr->vdisplay == 480)
 		mode_ptr->type |= DRM_MODE_TYPE_PREFERRED;
 	else if (tv_mode->nbr_end > 480) {
@@ -1403,8 +1399,7 @@ static int
 intel_tv_get_modes(struct drm_connector *connector)
 {
 	struct drm_display_mode *mode_ptr;
-	struct intel_tv *intel_tv = intel_attached_tv(connector);
-	const struct tv_mode *tv_mode = intel_tv_mode_find(intel_tv);
+	const struct tv_mode *tv_mode = intel_tv_mode_find_committed(connector);
 	int j, count = 0;
 	u64 tmp;
 
@@ -1447,7 +1442,7 @@ intel_tv_get_modes(struct drm_connector *connector)
 		mode_ptr->clock = (int) tmp;
 
 		mode_ptr->type = DRM_MODE_TYPE_DRIVER;
-		intel_tv_chose_preferred_modes(connector, mode_ptr);
+		intel_tv_choose_preferred_modes(tv_mode, mode_ptr);
 		drm_mode_probed_add(connector, mode_ptr);
 		count++;
 	}
@@ -1462,66 +1457,13 @@ intel_tv_destroy(struct drm_connector *connector)
 	kfree(connector);
 }
 
-
-static int
-intel_tv_set_property(struct drm_connector *connector, struct drm_property *property,
-		      uint64_t val)
-{
-	struct drm_device *dev = connector->dev;
-	struct intel_tv *intel_tv = intel_attached_tv(connector);
-	struct drm_crtc *crtc = intel_tv->base.base.crtc;
-	int ret = 0;
-	bool changed = false;
-
-	ret = drm_object_property_set_value(&connector->base, property, val);
-	if (ret < 0)
-		goto out;
-
-	if (property == dev->mode_config.tv_left_margin_property &&
-		intel_tv->margin[TV_MARGIN_LEFT] != val) {
-		intel_tv->margin[TV_MARGIN_LEFT] = val;
-		changed = true;
-	} else if (property == dev->mode_config.tv_right_margin_property &&
-		intel_tv->margin[TV_MARGIN_RIGHT] != val) {
-		intel_tv->margin[TV_MARGIN_RIGHT] = val;
-		changed = true;
-	} else if (property == dev->mode_config.tv_top_margin_property &&
-		intel_tv->margin[TV_MARGIN_TOP] != val) {
-		intel_tv->margin[TV_MARGIN_TOP] = val;
-		changed = true;
-	} else if (property == dev->mode_config.tv_bottom_margin_property &&
-		intel_tv->margin[TV_MARGIN_BOTTOM] != val) {
-		intel_tv->margin[TV_MARGIN_BOTTOM] = val;
-		changed = true;
-	} else if (property == dev->mode_config.tv_mode_property) {
-		if (val >= ARRAY_SIZE(tv_modes)) {
-			ret = -EINVAL;
-			goto out;
-		}
-		if (!strcmp(intel_tv->tv_format, tv_modes[val].name))
-			goto out;
-
-		intel_tv->tv_format = tv_modes[val].name;
-		changed = true;
-	} else {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	if (changed && crtc)
-		intel_crtc_restore_mode(crtc);
-out:
-	return ret;
-}
-
 static const struct drm_connector_funcs intel_tv_connector_funcs = {
 	.dpms = drm_atomic_helper_connector_dpms,
 	.detect = intel_tv_detect,
 	.late_register = intel_connector_register,
 	.early_unregister = intel_connector_unregister,
 	.destroy = intel_tv_destroy,
-	.set_property = intel_tv_set_property,
-	.atomic_get_property = intel_connector_atomic_get_property,
+	.set_property = drm_atomic_helper_connector_set_property,
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
@@ -1532,6 +1474,41 @@ static const struct drm_connector_helper_funcs intel_tv_connector_helper_funcs =
 	.get_modes = intel_tv_get_modes,
 };
 
+static int intel_tv_atomic_check(struct drm_encoder *encoder,
+				 struct drm_crtc_state *crtc_state,
+				 struct drm_connector_state *new_state)
+{
+	struct drm_connector_state *old_state = new_state->connector->state;
+
+	if (old_state->tv.mode != new_state->tv.mode ||
+	    old_state->tv.margins.left != new_state->tv.margins.left ||
+	    old_state->tv.margins.right != new_state->tv.margins.right ||
+	    old_state->tv.margins.top != new_state->tv.margins.top ||
+	    old_state->tv.margins.bottom != new_state->tv.margins.bottom) {
+		int ret;
+
+		crtc_state->connectors_changed = true;
+
+		/*
+		 * This is called after drm_atomic_helper_check_modeset adds
+		 * affected planes/connectors, so we have to add them manually.
+		 */
+		ret = drm_atomic_add_affected_connectors(new_state->state, crtc_state->crtc);
+		if (ret)
+			return ret;
+
+		ret = drm_atomic_add_affected_planes(new_state->state, crtc_state->crtc);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static const struct drm_encoder_helper_funcs intel_tv_enc_helper_funcs = {
+	.atomic_check = intel_tv_atomic_check,
+};
+
 static const struct drm_encoder_funcs intel_tv_enc_funcs = {
 	.destroy = intel_encoder_destroy,
 };
@@ -1547,6 +1524,7 @@ intel_tv_init(struct drm_i915_private *dev_priv)
 	u32 tv_dac_on, tv_dac_off, save_tv_dac;
 	const char *tv_format_names[ARRAY_SIZE(tv_modes)];
 	int i, initial_mode = 0;
+	struct drm_connector_state *state;
 
 	if ((I915_READ(TV_CTL) & TV_FUSE_STATE_MASK) == TV_FUSE_STATE_DISABLED)
 		return;
@@ -1592,6 +1570,7 @@ intel_tv_init(struct drm_i915_private *dev_priv)
 
 	intel_encoder = &intel_tv->base;
 	connector = &intel_connector->base;
+	state = connector->state;
 
 	/* The documentation, for the older chipsets at least, recommend
 	 * using a polling method rather than hotplug detection for TVs.
@@ -1617,6 +1596,7 @@ intel_tv_init(struct drm_i915_private *dev_priv)
 	intel_encoder->disable = intel_disable_tv;
 	intel_encoder->get_hw_state = intel_tv_get_hw_state;
 	intel_connector->get_hw_state = intel_connector_get_hw_state;
+	intel_connector->swap_state = intel_tv_swap_state;
 
 	intel_connector_attach_encoder(intel_connector, intel_encoder);
 
@@ -1627,14 +1607,16 @@ intel_tv_init(struct drm_i915_private *dev_priv)
 	intel_encoder->cloneable = 0;
 	intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
 	intel_tv->type = DRM_MODE_CONNECTOR_Unknown;
+	drm_encoder_helper_add(&intel_encoder->base, &intel_tv_enc_helper_funcs);
 
 	/* BIOS margin values */
-	intel_tv->margin[TV_MARGIN_LEFT] = 54;
-	intel_tv->margin[TV_MARGIN_TOP] = 36;
-	intel_tv->margin[TV_MARGIN_RIGHT] = 46;
-	intel_tv->margin[TV_MARGIN_BOTTOM] = 37;
+	state->tv.margins.left = 54;
+	state->tv.margins.top = 36;
+	state->tv.margins.right = 46;
+	state->tv.margins.bottom = 37;
 
-	intel_tv->tv_format = tv_modes[initial_mode].name;
+	state->tv.mode = initial_mode;
+	intel_tv->format = initial_mode;
 
 	drm_connector_helper_add(connector, &intel_tv_connector_helper_funcs);
 	connector->interlace_allowed = false;
@@ -1648,17 +1630,17 @@ intel_tv_init(struct drm_i915_private *dev_priv)
 				      tv_format_names);
 
 	drm_object_attach_property(&connector->base, dev->mode_config.tv_mode_property,
-				   initial_mode);
+				   state->tv.mode);
 	drm_object_attach_property(&connector->base,
 				   dev->mode_config.tv_left_margin_property,
-				   intel_tv->margin[TV_MARGIN_LEFT]);
+				   state->tv.margins.left);
 	drm_object_attach_property(&connector->base,
 				   dev->mode_config.tv_top_margin_property,
-				   intel_tv->margin[TV_MARGIN_TOP]);
+				   state->tv.margins.top);
 	drm_object_attach_property(&connector->base,
 				   dev->mode_config.tv_right_margin_property,
-				   intel_tv->margin[TV_MARGIN_RIGHT]);
+				   state->tv.margins.right);
 	drm_object_attach_property(&connector->base,
 				   dev->mode_config.tv_bottom_margin_property,
-				   intel_tv->margin[TV_MARGIN_BOTTOM]);
+				   state->tv.margins.bottom);
 }
-- 
2.7.4


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  parent reply	other threads:[~2017-03-15 10:08 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-09 13:06 [PATCH 0/3] drm/i915: Convert tv/dp_mst and crt connector properties to atomic Maarten Lankhorst
2017-03-09 13:06 ` [PATCH 1/3] drm/i915: Convert intel_tv " Maarten Lankhorst
2017-03-09 17:36   ` Ville Syrjälä
2017-03-13  9:22     ` Maarten Lankhorst
2017-03-13  9:29       ` Ville Syrjälä
2017-03-13 10:38         ` Maarten Lankhorst
2017-03-13 10:55           ` Ville Syrjälä
2017-03-13 12:19             ` Maarten Lankhorst
2017-03-13 16:10             ` [PATCH 1/3] drm/i915: Convert intel_tv connector properties to atomic, v2 Maarten Lankhorst
2017-03-13 16:22               ` Ville Syrjälä
2017-03-13 16:35                 ` Maarten Lankhorst
2017-03-13 16:44                   ` Ville Syrjälä
2017-03-13 17:14                     ` Maarten Lankhorst
2017-03-13 16:44                 ` Maarten Lankhorst
2017-03-14 18:36               ` Ville Syrjälä
2017-03-15  8:32                 ` Maarten Lankhorst
2017-03-15 10:08                 ` Maarten Lankhorst [this message]
2017-03-16 10:48                   ` [PATCH 1/3] drm/i915: Convert intel_tv connector properties to atomic, v3 Daniel Vetter
2017-03-16 12:05                     ` Maarten Lankhorst
2017-03-16 14:56                       ` Daniel Vetter
2017-03-16 15:27                         ` Maarten Lankhorst
2017-03-16 15:43                           ` Daniel Vetter
2017-03-09 13:06 ` [PATCH 2/3] drm/i915: Convert intel_dp_mst connector properties to atomic Maarten Lankhorst
2017-03-09 13:06 ` [PATCH 3/3] drm/i915: Convert intel_crt " Maarten Lankhorst
2017-03-09 16:23 ` ✓ Fi.CI.BAT: success for drm/i915: Convert tv/dp_mst and crt " Patchwork

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