disp: msm: sde: expose dnsc_blur connector properties

Add downscale blur connector properties to expose the hw block count,
downscaling filters used and the ratios supported. Add a custom dnsc_blur
property to allow usermode to send the required configuration to program
the hardware. Expose only for the virtual connector as the dnsc_blur is
only supported with writeback block.

Change-Id: I35dd263d9d5aafdb59bacbb3a0528ffd2bcaf6a3
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>

msm/msm_drv.h

@@ -200,6 +200,7 @@ enum msm_mdp_conn_property {
 	CONNECTOR_PROP_HDR_METADATA,
 	CONNECTOR_PROP_DEMURA_PANEL_ID,
 	CONNECTOR_PROP_DIMMING_BL_LUT,
+	CONNECTOR_PROP_DNSC_BLUR,
 
 	/* # of blob properties */
 	CONNECTOR_PROP_BLOBCOUNT,

msm/sde/sde_connector.c

@@ -84,23 +84,6 @@ static const struct drm_prop_enum_list e_panel_mode[] = {
 	{MSM_DISPLAY_MODE_MAX, "none"},
 };
 
-static inline struct sde_kms *_sde_connector_get_kms(struct drm_connector *conn)
-{
-	struct msm_drm_private *priv;
-
-	if (!conn || !conn->dev || !conn->dev->dev_private) {
-		SDE_ERROR("invalid connector\n");
-		return NULL;
-	}
-	priv = conn->dev->dev_private;
-	if (!priv || !priv->kms) {
-		SDE_ERROR("invalid kms\n");
-		return NULL;
-	}
-
-	return to_sde_kms(priv->kms);
-}
-
 static void sde_dimming_bl_notify(struct sde_connector *conn, struct dsi_backlight_config *config)
 {
 	struct drm_event event;
@@ -140,7 +123,7 @@ static int sde_backlight_device_update_status(struct backlight_device *bd)
 	int rc = 0;
 	struct sde_kms *sde_kms;
 
-	sde_kms = _sde_connector_get_kms(&c_conn->base);
+	sde_kms = sde_connector_get_kms(&c_conn->base);
 	if (!sde_kms) {
 		SDE_ERROR("invalid kms\n");
 		return -EINVAL;
@@ -234,7 +217,7 @@ static int sde_backlight_setup(struct sde_connector *c_conn,
 	static int display_count;
 	char bl_node_name[BL_NODE_NAME_SIZE];
 
-	sde_kms = _sde_connector_get_kms(&c_conn->base);
+	sde_kms = sde_connector_get_kms(&c_conn->base);
 	if (!sde_kms) {
 		SDE_ERROR("invalid kms\n");
 		return -EINVAL;
@@ -445,7 +428,7 @@ static void sde_connector_get_avail_res_info(struct drm_connector *conn,
 	struct drm_encoder *drm_enc = NULL;
 	struct sde_connector *sde_conn;
 
-	sde_kms = _sde_connector_get_kms(conn);
+	sde_kms = sde_connector_get_kms(conn);
 	if (!sde_kms) {
 		SDE_ERROR("invalid kms\n");
 		return;
@@ -1103,7 +1086,7 @@ void sde_connector_helper_bridge_disable(struct drm_connector *connector)
 	bool poms_pending = false;
 	struct sde_kms *sde_kms;
 
-	sde_kms = _sde_connector_get_kms(connector);
+	sde_kms = sde_connector_get_kms(connector);
 	if (!sde_kms) {
 		SDE_ERROR("invalid kms\n");
 		return;
@@ -1149,7 +1132,7 @@ void sde_connector_helper_bridge_enable(struct drm_connector *connector)
 	struct dsi_display *display;
 	struct sde_kms *sde_kms;
 
-	sde_kms = _sde_connector_get_kms(connector);
+	sde_kms = sde_connector_get_kms(connector);
 	if (!sde_kms) {
 		SDE_ERROR("invalid kms\n");
 		return;
@@ -2182,7 +2165,7 @@ static ssize_t _sde_debugfs_conn_cmd_tx_write(struct file *file,
 	}
 	c_conn = to_sde_connector(connector);
 
-	sde_kms = _sde_connector_get_kms(&c_conn->base);
+	sde_kms = sde_connector_get_kms(&c_conn->base);
 	if (!sde_kms) {
 		SDE_ERROR("invalid kms\n");
 		return -EINVAL;
@@ -2704,7 +2687,7 @@ const char *sde_conn_get_topology_name(struct drm_connector *conn,
 	struct sde_kms *sde_kms;
 	int topology_idx = 0;
 
-	sde_kms = _sde_connector_get_kms(conn);
+	sde_kms = sde_connector_get_kms(conn);
 	if (!sde_kms) {
 		SDE_ERROR("invalid kms\n");
 		return NULL;
@@ -2831,7 +2814,7 @@ static int sde_connector_populate_mode_info(struct drm_connector *conn,
 	const char *topo_name = NULL;
 	int rc = 0;
 
-	sde_kms = _sde_connector_get_kms(conn);
+	sde_kms = sde_connector_get_kms(conn);
 	if (!sde_kms) {
 		SDE_ERROR("invalid kms\n");
 		return -EINVAL;

msm/sde/sde_connector.h

@@ -731,6 +731,29 @@ struct sde_connector_state {
 #define sde_connector_get_out_fb(S) \
 	((S) ? to_sde_connector_state((S))->out_fb : 0)
 
+/**
+ * sde_connector_get_kms - helper to get sde_kms from connector
+ * @conn: Pointer to drm connector
+ * Returns: Pointer to sde_kms or NULL
+ */
+static inline struct sde_kms *sde_connector_get_kms(struct drm_connector *conn)
+{
+	struct msm_drm_private *priv;
+
+	if (!conn || !conn->dev || !conn->dev->dev_private) {
+		SDE_ERROR("invalid connector\n");
+		return NULL;
+	}
+
+	priv = conn->dev->dev_private;
+	if (!priv->kms) {
+		SDE_ERROR("invalid kms\n");
+		return NULL;
+	}
+
+	return to_sde_kms(priv->kms);
+}
+
 /**
  * sde_connector_get_topology_name - helper accessor to retrieve topology_name
  * @connector: pointer to drm connector

msm/sde/sde_kms.h

@@ -584,6 +584,19 @@ void sde_kms_info_append_format(struct sde_kms_info *info,
 		uint32_t pixel_format,
 		uint64_t modifier);
 
+/**
+ * sde_kms_info_append_dnsc_blur_filter_info - append dnsc_blur filters code to 'sde_kms_info'
+ * Usage:
+ *      sde_kms_info_start(key)
+ *      sde_kms_info_append_dnsc_blur_filter_info(info, ratio)
+ *      ...
+ *      sde_kms_info_stop
+ * @info: Pointer to sde_kms_info structure
+ * @filter: Pointer to dnsc_blur filter info
+ */
+void sde_kms_info_append_dnsc_blur_filter_info(struct sde_kms_info *info,
+		struct sde_dnsc_blur_filter_info *filter);
+
 /**
  * sde_kms_info_stop - finish adding key to 'sde_kms_info'
  * Usage:

msm/sde/sde_kms_utils.c

@@ -167,6 +167,40 @@ void sde_kms_info_stop(struct sde_kms_info *info)
 	}
 }
 
+void sde_kms_info_append_dnsc_blur_filter_info(struct sde_kms_info *info,
+		struct sde_dnsc_blur_filter_info *filter_info)
+{
+	int i;
+	uint32_t len, cur_len;
+
+	if (!info)
+		return;
+
+	len = snprintf(info->data + info->staged_len, SDE_KMS_INFO_MAX_SIZE - info->staged_len,
+			info->start ?
+				"%c/%c/%c/%c/%c/%c/%c/%c/%c/" : " %c/%c/%c/%c/%c/%c/%c/%c/%c/",
+			filter_info->filter & 0xFF, filter_info->src_min & 0xFF,
+			filter_info->src_max & 0xFF, filter_info->dst_min & 0xFF,
+			filter_info->dst_max & 0xFF, filter_info->min_ratio & 0xFF,
+			filter_info->max_ratio & 0xFF, filter_info->fraction_support & 0xFF,
+			filter_info->ratio_count & 0xFF);
+
+	cur_len = len;
+	for (i = 0; i < filter_info->ratio_count; i++) {
+		len = snprintf(info->data + (info->staged_len + cur_len),
+				SDE_KMS_INFO_MAX_SIZE - (info->staged_len + cur_len),
+				(i == filter_info->ratio_count - 1) ? "%c" : "%c,",
+				filter_info->ratio[i]);
+		cur_len += len;
+	}
+
+	/* check if snprintf truncated the string */
+	if ((info->staged_len + cur_len) < SDE_KMS_INFO_MAX_SIZE) {
+		info->staged_len += cur_len;
+		info->start = false;
+	}
+}
+
 void sde_kms_rect_intersect(const struct sde_rect *r1,
 		const struct sde_rect *r2,
 		struct sde_rect *result)

msm/sde/sde_wb.c

@@ -416,40 +416,36 @@ int sde_wb_connector_set_info_blob(struct drm_connector *connector,
 {
 	struct sde_wb_device *wb_dev = display;
 	const struct sde_format_extended *format_list;
-	struct msm_drm_private *priv = NULL;
-	struct sde_kms *sde_kms = NULL;
+	struct sde_kms *sde_kms;
+	struct sde_mdss_cfg *catalog;
+	int i;
 
 	if (!connector || !info || !display || !wb_dev->wb_cfg) {
 		SDE_ERROR("invalid params\n");
 		return -EINVAL;
 	}
 
+	sde_kms = sde_connector_get_kms(connector);
+	if (!sde_kms)
+		return -EINVAL;
+	catalog = sde_kms->catalog;
+
 	format_list = wb_dev->wb_cfg->format_list;
 
-	/*
-	 * Populate info buffer
-	 */
+	/* Populate info buffer */
 	if (format_list) {
 		sde_kms_info_start(info, "pixel_formats");
 		while (format_list->fourcc_format) {
-			sde_kms_info_append_format(info,
-					format_list->fourcc_format,
+			sde_kms_info_append_format(info, format_list->fourcc_format,
 					format_list->modifier);
 			++format_list;
 		}
 		sde_kms_info_stop(info);
 	}
 
-	sde_kms_info_add_keyint(info,
-			"wb_intf_index",
-			wb_dev->wb_idx - WB_0);
-
-	sde_kms_info_add_keyint(info,
-			"maxlinewidth",
-			wb_dev->wb_cfg->sblk->maxlinewidth);
-
-	sde_kms_info_add_keyint(info,
-			"maxlinewidth_linear",
+	sde_kms_info_add_keyint(info, "wb_intf_index", wb_dev->wb_idx - WB_0);
+	sde_kms_info_add_keyint(info, "maxlinewidth", wb_dev->wb_cfg->sblk->maxlinewidth);
+	sde_kms_info_add_keyint(info, "maxlinewidth_linear",
 			wb_dev->wb_cfg->sblk->maxlinewidth_linear);
 
 	sde_kms_info_start(info, "features");
@@ -457,64 +453,39 @@ int sde_wb_connector_set_info_blob(struct drm_connector *connector,
 		sde_kms_info_append(info, "wb_ubwc");
 	sde_kms_info_stop(info);
 
-	if (wb_dev->drm_dev && wb_dev->drm_dev->dev_private) {
-		priv = wb_dev->drm_dev->dev_private;
-		if (!priv->kms) {
-			SDE_ERROR("invalid kms reference\n");
-			return -EINVAL;
-		}
-
-		sde_kms = to_sde_kms(priv->kms);
 	sde_kms_info_add_keyint(info, "has_cwb_dither", test_bit(SDE_FEATURE_CWB_DITHER,
-				sde_kms->catalog->features));
-	} else {
-		SDE_ERROR("invalid params %pK\n", wb_dev->drm_dev);
-		return -EINVAL;
+				catalog->features));
+
+	if (catalog->dnsc_blur_count && catalog->dnsc_blur_filters) {
+		sde_kms_info_add_keyint(info, "dnsc_blur_count", catalog->dnsc_blur_count);
+
+		sde_kms_info_start(info, "dnsc_blur_info");
+		for (i = 0; i < catalog->dnsc_blur_filter_count; i++)
+			sde_kms_info_append_dnsc_blur_filter_info(info,
+						&catalog->dnsc_blur_filters[i]);
+		sde_kms_info_stop(info);
 	}
 
 	return 0;
 }
 
-static void sde_wb_connector_install_dither_property(struct sde_wb_device *wb_dev,
-					struct sde_connector *c_conn)
+static void _sde_wb_connector_install_dither_property(struct sde_wb_device *wb_dev)
 {
+	struct sde_connector *c_conn = to_sde_connector(wb_dev->connector);
+	struct sde_kms *sde_kms = sde_connector_get_kms(wb_dev->connector);
+	struct sde_mdss_cfg *catalog;
 	char prop_name[DRM_PROP_NAME_LEN];
-	struct sde_kms *sde_kms = NULL;
-	struct msm_drm_private *priv = NULL;
-	struct sde_mdss_cfg *catalog = NULL;
 	u32 version = 0;
 
-	if (!wb_dev || !c_conn) {
-		SDE_ERROR("invalid args (s), wb_dev %pK, c_conn %pK\n", wb_dev, c_conn);
+	if (!sde_kms || !sde_kms->catalog)
 		return;
-	}
-
-	if (!wb_dev->drm_dev) {
-		SDE_ERROR("invalid drm_dev is null\n");
-		return;
-	}
-
-	if (!wb_dev->drm_dev->dev_private) {
-		SDE_ERROR("invalid dev_private is null\n");
-		return;
-	}
-
-	priv = wb_dev->drm_dev->dev_private;
-	if (!priv->kms) {
-		SDE_ERROR("invalid kms reference is null\n");
-		return;
-	}
-
-	sde_kms = to_sde_kms(priv->kms);
 	catalog = sde_kms->catalog;
 
 	if (!test_bit(SDE_FEATURE_CWB_DITHER, catalog->features))
 		return;
 
-	version = SDE_COLOR_PROCESS_MAJOR(
-			catalog->pingpong[0].sblk->dither.version);
-	snprintf(prop_name, ARRAY_SIZE(prop_name), "%s%d",
-			"SDE_PP_CWB_DITHER_V", version);
+	version = SDE_COLOR_PROCESS_MAJOR(catalog->pingpong[0].sblk->dither.version);
+	snprintf(prop_name, ARRAY_SIZE(prop_name), "%s%d", "SDE_PP_CWB_DITHER_V", version);
 	switch (version) {
 	case 2:
 		msm_property_install_blob(&c_conn->property_info, prop_name,
@@ -591,7 +562,12 @@ int sde_wb_connector_post_init(struct drm_connector *connector, void *display)
 		msm_property_install_range(&c_conn->property_info, "early_fence_line",
 			0x0, 0, UINT_MAX, 0, CONNECTOR_PROP_EARLY_FENCE_LINE);
 
-	sde_wb_connector_install_dither_property(wb_dev, c_conn);
+	if (catalog->dnsc_blur_count && catalog->dnsc_blur_filters)
+		msm_property_install_range(&c_conn->property_info, "dnsc_blur",
+			0x0, 0, ~0, 0, CONNECTOR_PROP_DNSC_BLUR);
+
+	_sde_wb_connector_install_dither_property(wb_dev);
+
 
 	return 0;
 }