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From: Anshuman Gupta <anshuman.gupta@intel.com>
To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Cc: jani.nikula@intel.com, seanpaul@chromium.org
Subject: [Intel-gfx] [PATCH v2 08/15] drm/i915/hdcp: Encapsulate hdcp_port_data to dig_port
Date: Tue, 20 Oct 2020 19:08:59 +0530	[thread overview]
Message-ID: <20201020133906.23710-9-anshuman.gupta@intel.com> (raw)
In-Reply-To: <20201020133906.23710-1-anshuman.gupta@intel.com>

hdcp_port_data is specific to a port on which HDCP
encryption is getting enabled, so encapsulate it to
intel_digital_port.
This will be required to enable HDCP 2.2 stream encryption.

Cc: Ramalingam C <ramalingam.c@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 .../drm/i915/display/intel_display_types.h    |  5 +-
 drivers/gpu/drm/i915/display/intel_hdcp.c     | 58 ++++++++++++-------
 2 files changed, 39 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 25829f7e413e..cde99ad969b3 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -402,7 +402,6 @@ struct intel_hdcp {
 	 * content can flow only through a link protected by HDCP2.2.
 	 */
 	u8 content_type;
-	struct hdcp_port_data port_data;
 
 	bool is_paired;
 	bool is_repeater;
@@ -1444,10 +1443,12 @@ struct intel_digital_port {
 	enum phy_fia tc_phy_fia;
 	u8 tc_phy_fia_idx;
 
-	/* protects num_hdcp_streams reference count */
+	/* protects num_hdcp_streams reference count, port_data */
 	struct mutex hdcp_mutex;
 	/* the number of pipes using HDCP signalling out of this port */
 	unsigned int num_hdcp_streams;
+	/* HDCP port data need to pass to security f/w */
+	struct hdcp_port_data port_data;
 
 	void (*write_infoframe)(struct intel_encoder *encoder,
 				const struct intel_crtc_state *crtc_state,
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index a48765e5e783..1a6ac24efe2d 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -15,6 +15,7 @@
 #include <drm/drm_hdcp.h>
 #include <drm/i915_component.h>
 
+#include "i915_drv.h"
 #include "i915_reg.h"
 #include "intel_display_power.h"
 #include "intel_display_types.h"
@@ -1031,7 +1032,8 @@ static int
 hdcp2_prepare_ake_init(struct intel_connector *connector,
 		       struct hdcp2_ake_init *ake_data)
 {
-	struct hdcp_port_data *data = &connector->hdcp.port_data;
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+	struct hdcp_port_data *data = &dig_port->port_data;
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct i915_hdcp_comp_master *comp;
 	int ret;
@@ -1060,7 +1062,8 @@ hdcp2_verify_rx_cert_prepare_km(struct intel_connector *connector,
 				struct hdcp2_ake_no_stored_km *ek_pub_km,
 				size_t *msg_sz)
 {
-	struct hdcp_port_data *data = &connector->hdcp.port_data;
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+	struct hdcp_port_data *data = &dig_port->port_data;
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct i915_hdcp_comp_master *comp;
 	int ret;
@@ -1087,7 +1090,8 @@ hdcp2_verify_rx_cert_prepare_km(struct intel_connector *connector,
 static int hdcp2_verify_hprime(struct intel_connector *connector,
 			       struct hdcp2_ake_send_hprime *rx_hprime)
 {
-	struct hdcp_port_data *data = &connector->hdcp.port_data;
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+	struct hdcp_port_data *data = &dig_port->port_data;
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct i915_hdcp_comp_master *comp;
 	int ret;
@@ -1112,7 +1116,8 @@ static int
 hdcp2_store_pairing_info(struct intel_connector *connector,
 			 struct hdcp2_ake_send_pairing_info *pairing_info)
 {
-	struct hdcp_port_data *data = &connector->hdcp.port_data;
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+	struct hdcp_port_data *data = &dig_port->port_data;
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct i915_hdcp_comp_master *comp;
 	int ret;
@@ -1138,7 +1143,8 @@ static int
 hdcp2_prepare_lc_init(struct intel_connector *connector,
 		      struct hdcp2_lc_init *lc_init)
 {
-	struct hdcp_port_data *data = &connector->hdcp.port_data;
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+	struct hdcp_port_data *data = &dig_port->port_data;
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct i915_hdcp_comp_master *comp;
 	int ret;
@@ -1164,7 +1170,8 @@ static int
 hdcp2_verify_lprime(struct intel_connector *connector,
 		    struct hdcp2_lc_send_lprime *rx_lprime)
 {
-	struct hdcp_port_data *data = &connector->hdcp.port_data;
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+	struct hdcp_port_data *data = &dig_port->port_data;
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct i915_hdcp_comp_master *comp;
 	int ret;
@@ -1189,7 +1196,8 @@ hdcp2_verify_lprime(struct intel_connector *connector,
 static int hdcp2_prepare_skey(struct intel_connector *connector,
 			      struct hdcp2_ske_send_eks *ske_data)
 {
-	struct hdcp_port_data *data = &connector->hdcp.port_data;
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+	struct hdcp_port_data *data = &dig_port->port_data;
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct i915_hdcp_comp_master *comp;
 	int ret;
@@ -1217,7 +1225,8 @@ hdcp2_verify_rep_topology_prepare_ack(struct intel_connector *connector,
 								*rep_topology,
 				      struct hdcp2_rep_send_ack *rep_send_ack)
 {
-	struct hdcp_port_data *data = &connector->hdcp.port_data;
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+	struct hdcp_port_data *data = &dig_port->port_data;
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct i915_hdcp_comp_master *comp;
 	int ret;
@@ -1245,7 +1254,8 @@ static int
 hdcp2_verify_mprime(struct intel_connector *connector,
 		    struct hdcp2_rep_stream_ready *stream_ready)
 {
-	struct hdcp_port_data *data = &connector->hdcp.port_data;
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+	struct hdcp_port_data *data = &dig_port->port_data;
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct i915_hdcp_comp_master *comp;
 	int ret;
@@ -1268,7 +1278,8 @@ hdcp2_verify_mprime(struct intel_connector *connector,
 
 static int hdcp2_authenticate_port(struct intel_connector *connector)
 {
-	struct hdcp_port_data *data = &connector->hdcp.port_data;
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
+	struct hdcp_port_data *data = &dig_port->port_data;
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct i915_hdcp_comp_master *comp;
 	int ret;
@@ -1292,6 +1303,7 @@ static int hdcp2_authenticate_port(struct intel_connector *connector)
 
 static int hdcp2_close_mei_session(struct intel_connector *connector)
 {
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 	struct i915_hdcp_comp_master *comp;
 	int ret;
@@ -1305,7 +1317,7 @@ static int hdcp2_close_mei_session(struct intel_connector *connector)
 	}
 
 	ret = comp->ops->close_hdcp_session(comp->mei_dev,
-					     &connector->hdcp.port_data);
+					     &dig_port->port_data);
 	mutex_unlock(&dev_priv->hdcp_comp_mutex);
 
 	return ret;
@@ -1498,8 +1510,9 @@ int _hdcp2_propagate_stream_management_info(struct intel_connector *connector)
 	if (ret < 0)
 		goto out;
 
-	hdcp->port_data.seq_num_m = hdcp->seq_num_m;
-	hdcp->port_data.streams[0].stream_type = hdcp->content_type;
+	dig_port->port_data.seq_num_m = hdcp->seq_num_m;
+	dig_port->port_data.streams[0].stream_type = hdcp->content_type;
+
 	ret = hdcp2_verify_mprime(connector, &msgs.stream_ready);
 
 out:
@@ -1731,7 +1744,9 @@ hdcp2_propagate_stream_management_info(struct intel_connector *connector)
 
 static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector)
 {
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
 	struct drm_i915_private *i915 = to_i915(connector->base.dev);
+	struct hdcp_port_data *data = &dig_port->port_data;
 	struct intel_hdcp *hdcp = &connector->hdcp;
 	int ret, i, tries = 3;
 
@@ -1745,8 +1760,7 @@ static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector)
 					    ret);
 				break;
 			}
-			hdcp->port_data.streams[0].stream_type =
-							hdcp->content_type;
+			data->streams[0].stream_type = hdcp->content_type;
 			ret = hdcp2_authenticate_port(connector);
 			if (!ret)
 				break;
@@ -1989,8 +2003,8 @@ static int initialize_hdcp_port_data(struct intel_connector *connector,
 				     const struct intel_hdcp_shim *shim)
 {
 	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+	struct hdcp_port_data *data = &dig_port->port_data;
 	struct intel_hdcp *hdcp = &connector->hdcp;
-	struct hdcp_port_data *data = &hdcp->port_data;
 	enum port port = dig_port->base.port;
 
 	if (INTEL_GEN(dev_priv) < 12)
@@ -2012,16 +2026,15 @@ static int initialize_hdcp_port_data(struct intel_connector *connector,
 	data->port_type = (u8)HDCP_PORT_TYPE_INTEGRATED;
 	data->protocol = (u8)shim->protocol;
 
-	data->k = 1;
 	if (!data->streams)
-		data->streams = kcalloc(data->k,
+		data->streams = kcalloc(INTEL_NUM_PIPES(dev_priv),
 					sizeof(struct hdcp2_streamid_type),
 					GFP_KERNEL);
 	if (!data->streams) {
 		drm_err(&dev_priv->drm, "Out of Memory\n");
 		return -ENOMEM;
 	}
-
+	/* For SST */
 	data->streams[0].stream_id = 0;
 	data->streams[0].stream_type = hdcp->content_type;
 
@@ -2100,7 +2113,7 @@ int intel_hdcp_init(struct intel_connector *connector,
 							 hdcp->hdcp2_supported);
 	if (ret) {
 		hdcp->hdcp2_supported = false;
-		kfree(hdcp->port_data.streams);
+		kfree(dig_port->port_data.streams);
 		return ret;
 	}
 
@@ -2140,7 +2153,7 @@ int intel_hdcp_enable(struct intel_connector *connector,
 	}
 
 	if (INTEL_GEN(dev_priv) >= 12)
-		hdcp->port_data.fw_tc = intel_get_mei_fw_tc(hdcp->cpu_transcoder);
+		dig_port->port_data.fw_tc = intel_get_mei_fw_tc(hdcp->cpu_transcoder);
 
 	/*
 	 * Considering that HDCP2.2 is more secure than HDCP1.4, If the setup
@@ -2275,6 +2288,7 @@ void intel_hdcp_component_fini(struct drm_i915_private *dev_priv)
 
 void intel_hdcp_cleanup(struct intel_connector *connector)
 {
+	struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
 	struct intel_hdcp *hdcp = &connector->hdcp;
 
 	if (!hdcp->shim)
@@ -2305,7 +2319,7 @@ void intel_hdcp_cleanup(struct intel_connector *connector)
 	drm_WARN_ON(connector->base.dev, work_pending(&hdcp->prop_work));
 
 	mutex_lock(&hdcp->mutex);
-	kfree(hdcp->port_data.streams);
+	kfree(dig_port->port_data.streams);
 	hdcp->shim = NULL;
 	mutex_unlock(&hdcp->mutex);
 }
-- 
2.26.2

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Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

  parent reply	other threads:[~2020-10-20 13:50 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-20 13:38 [Intel-gfx] [PATCH v2 00/15] HDCP 2.2 DP MST Support Anshuman Gupta
2020-10-20 13:38 ` [Intel-gfx] [PATCH v2 01/15] drm/i915/hdcp: Update CP property in update_pipe Anshuman Gupta
2020-10-20 13:38 ` [Intel-gfx] [PATCH v2 02/15] drm/i915/hotplug: Handle CP_IRQ for DP-MST Anshuman Gupta
2020-10-20 13:38 ` [Intel-gfx] [PATCH v2 03/15] drm/i915/hdcp: DP MST transcoder for link and stream Anshuman Gupta
2020-10-20 13:38 ` [Intel-gfx] [PATCH v2 04/15] drm/i915/hdcp: Move HDCP enc status timeout to header Anshuman Gupta
2020-10-20 13:38 ` [Intel-gfx] [PATCH v2 05/15] drm/i915/hdcp: HDCP stream encryption support Anshuman Gupta
2020-10-20 13:38 ` [Intel-gfx] [PATCH v2 06/15] drm/i915/hdcp: Enable Gen12 HDCP 1.4 DP MST support Anshuman Gupta
2020-10-20 13:38 ` [Intel-gfx] [PATCH v2 07/15] drm/i915/hdcp: Pass dig_port to intel_hdcp_init Anshuman Gupta
2020-10-20 13:38 ` Anshuman Gupta [this message]
2020-10-20 13:39 ` [Intel-gfx] [PATCH v2 09/15] misc/mei/hdcp: Fix AUTH_STREAM_REQ cmd buffer len Anshuman Gupta
2020-10-20 18:32   ` Jani Nikula
2020-10-21 16:30     ` Winkler, Tomas
2020-10-20 13:39 ` [Intel-gfx] [PATCH v2 10/15] drm/hdcp: Max MST content streams Anshuman Gupta
2020-10-20 13:39 ` [Intel-gfx] [PATCH v2 11/15] drm/i915/hdcp: mst streams support in hdcp port_data Anshuman Gupta
2020-10-20 13:39 ` [Intel-gfx] [PATCH v2 12/15] drm/i915/hdcp: Pass connector to check_2_2_link Anshuman Gupta
2020-10-20 13:39 ` [Intel-gfx] [PATCH v2 13/15] drm/i915/hdcp: Add HDCP 2.2 stream register Anshuman Gupta
2020-10-20 13:39 ` [Intel-gfx] [PATCH v2 14/15] drm/i915/hdcp: Support for HDCP 2.2 MST shim callbacks Anshuman Gupta
2020-10-20 13:39 ` [Intel-gfx] [PATCH v2 15/15] drm/i915/hdcp: Enable HDCP 2.2 MST support Anshuman Gupta
2020-10-20 13:57 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for HDCP 2.2 DP MST Support (rev4) Patchwork
2020-10-20 13:58 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2020-10-20 14:27 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork

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