1 files changed, 63 insertions, 5 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 6f2d13c8ccf7..b99c024b0934 100644
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@ -188,7 +188,8 @@ static void intel_panel_info(struct seq_file *m,
 }
 
 static void intel_hdcp_info(struct seq_file *m,
-			    struct intel_connector *intel_connector)
+			    struct intel_connector *intel_connector,
+			    bool remote_req)
 {
 	bool hdcp_cap, hdcp2_cap;
 
@@ -197,8 +198,14 @@ static void intel_hdcp_info(struct seq_file *m,
 		goto out;
 	}
 
-	hdcp_cap = intel_hdcp_capable(intel_connector);
-	hdcp2_cap = intel_hdcp2_capable(intel_connector);
+	if (remote_req) {
+		intel_hdcp_get_remote_capability(intel_connector,
+						 &hdcp_cap,
+						 &hdcp2_cap);
+	} else {
+		hdcp_cap = intel_hdcp_get_capability(intel_connector);
+		hdcp2_cap = intel_hdcp2_get_capability(intel_connector);
+	}
 
 	if (hdcp_cap)
 		seq_puts(m, "HDCP1.4 ");
@@ -285,7 +292,11 @@ static void intel_connector_info(struct seq_file *m,
 	}
 
 	seq_puts(m, "\tHDCP version: ");
-	intel_hdcp_info(m, intel_connector);
+	if (intel_encoder_is_mst(encoder)) {
+		intel_hdcp_info(m, intel_connector, true);
+		seq_puts(m, "\tMST Hub HDCP version: ");
+	}
+	intel_hdcp_info(m, intel_connector, false);
 
 	seq_printf(m, "\tmax bpc: %u\n", connector->display_info.bpc);
 
@@ -1131,7 +1142,7 @@ static int i915_hdcp_sink_capability_show(struct seq_file *m, void *data)
 
 	seq_printf(m, "%s:%d HDCP version: ", connector->base.name,
 		   connector->base.base.id);
-	intel_hdcp_info(m, connector);
+	intel_hdcp_info(m, connector, false);
 
 out:
 	drm_modeset_unlock(&i915->drm.mode_config.connection_mutex);
@@ -1391,6 +1402,20 @@ out:	drm_modeset_unlock(&i915->drm.mode_config.connection_mutex);
 	return ret;
 }
 
+static int i915_bigjoiner_enable_show(struct seq_file *m, void *data)
+{
+	struct intel_connector *connector = m->private;
+	struct drm_crtc *crtc;
+
+	crtc = connector->base.state->crtc;
+	if (connector->base.status != connector_status_connected || !crtc)
+		return -ENODEV;
+
+	seq_printf(m, "Bigjoiner enable: %d\n", connector->force_bigjoiner_enable);
+
+	return 0;
+}
+
 static ssize_t i915_dsc_output_format_write(struct file *file,
 					    const char __user *ubuf,
 					    size_t len, loff_t *offp)
@@ -1412,6 +1437,30 @@ static ssize_t i915_dsc_output_format_write(struct file *file,
 	return len;
 }
 
+static ssize_t i915_bigjoiner_enable_write(struct file *file,
+					   const char __user *ubuf,
+					   size_t len, loff_t *offp)
+{
+	struct seq_file *m = file->private_data;
+	struct intel_connector *connector = m->private;
+	struct drm_crtc *crtc;
+	bool bigjoiner_en = 0;
+	int ret;
+
+	crtc = connector->base.state->crtc;
+	if (connector->base.status != connector_status_connected || !crtc)
+		return -ENODEV;
+
+	ret = kstrtobool_from_user(ubuf, len, &bigjoiner_en);
+	if (ret < 0)
+		return ret;
+
+	connector->force_bigjoiner_enable = bigjoiner_en;
+	*offp += len;
+
+	return len;
+}
+
 static int i915_dsc_output_format_open(struct inode *inode,
 				       struct file *file)
 {
@@ -1505,6 +1554,8 @@ static const struct file_operations i915_dsc_fractional_bpp_fops = {
 	.write = i915_dsc_fractional_bpp_write
 };
 
+DEFINE_SHOW_STORE_ATTRIBUTE(i915_bigjoiner_enable);
+
 /*
  * Returns the Current CRTC's bpc.
  * Example usage: cat /sys/kernel/debug/dri/0/crtc-0/i915_current_bpc
@@ -1586,6 +1637,13 @@ void intel_connector_debugfs_add(struct intel_connector *connector)
 				    connector, &i915_dsc_fractional_bpp_fops);
 	}
 
+	if (DISPLAY_VER(i915) >= 11 &&
+	    (connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+	     connector_type == DRM_MODE_CONNECTOR_eDP)) {
+		debugfs_create_file("i915_bigjoiner_force_enable", 0644, root,
+				    connector, &i915_bigjoiner_enable_fops);
+	}
+
 	if (connector_type == DRM_MODE_CONNECTOR_DSI ||
 	    connector_type == DRM_MODE_CONNECTOR_eDP ||
 	    connector_type == DRM_MODE_CONNECTOR_DisplayPort ||