dri-devel.lists.freedesktop.org archive mirror
 help / color / mirror / Atom feed
From: Sean Paul <sean@poorly.run>
To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org
Cc: daniel.vetter@ffwll.ch, rodrigo.vivi@intel.com,
	Sean Paul <seanpaul@chromium.org>
Subject: [PATCH v3 06/12] drm/i915: Factor out hdcp->value assignments
Date: Fri, 17 Jan 2020 14:30:57 -0500	[thread overview]
Message-ID: <20200117193103.156821-7-sean@poorly.run> (raw)
In-Reply-To: <20200117193103.156821-1-sean@poorly.run>

From: Sean Paul <seanpaul@chromium.org>

This is a bit of housecleaning for a future patch. Instead of sprinkling
hdcp->value assignments and prop_work scheduling everywhere, introduce a
function to do it for us.

Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191203173638.94919-7-sean@poorly.run #v1
Link: https://patchwork.freedesktop.org/patch/msgid/20191212190230.188505-7-sean@poorly.run #v2

Changes in v2:
-None
Changes in v3:
-None
---
 drivers/gpu/drm/i915/display/intel_hdcp.c | 67 ++++++++++++++++-------
 1 file changed, 46 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index f8d56d3b2ddb..798e7e1a19fc 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -852,6 +852,21 @@ struct intel_connector *intel_hdcp_to_connector(struct intel_hdcp *hdcp)
 	return container_of(hdcp, struct intel_connector, hdcp);
 }
 
+static void intel_hdcp_update_value(struct intel_connector *connector,
+				    u64 value, bool update_property)
+{
+	struct intel_hdcp *hdcp = &connector->hdcp;
+
+	WARN_ON(!mutex_is_locked(&hdcp->mutex));
+
+	if (hdcp->value == value)
+		return;
+
+	hdcp->value = value;
+	if (update_property)
+		schedule_work(&hdcp->prop_work);
+}
+
 /* Implements Part 3 of the HDCP authorization procedure */
 static int intel_hdcp_check_link(struct intel_connector *connector)
 {
@@ -878,15 +893,16 @@ static int intel_hdcp_check_link(struct intel_connector *connector)
 			  I915_READ(HDCP_STATUS(dev_priv, cpu_transcoder,
 						port)));
 		ret = -ENXIO;
-		hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
-		schedule_work(&hdcp->prop_work);
+		intel_hdcp_update_value(connector,
+					DRM_MODE_CONTENT_PROTECTION_DESIRED,
+					true);
 		goto out;
 	}
 
 	if (hdcp->shim->check_link(intel_dig_port)) {
 		if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
-			hdcp->value = DRM_MODE_CONTENT_PROTECTION_ENABLED;
-			schedule_work(&hdcp->prop_work);
+			intel_hdcp_update_value(connector,
+				DRM_MODE_CONTENT_PROTECTION_ENABLED, true);
 		}
 		goto out;
 	}
@@ -897,16 +913,18 @@ static int intel_hdcp_check_link(struct intel_connector *connector)
 	ret = _intel_hdcp_disable(connector);
 	if (ret) {
 		DRM_ERROR("Failed to disable hdcp (%d)\n", ret);
-		hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
-		schedule_work(&hdcp->prop_work);
+		intel_hdcp_update_value(connector,
+					DRM_MODE_CONTENT_PROTECTION_DESIRED,
+					true);
 		goto out;
 	}
 
 	ret = _intel_hdcp_enable(connector);
 	if (ret) {
 		DRM_ERROR("Failed to enable hdcp (%d)\n", ret);
-		hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
-		schedule_work(&hdcp->prop_work);
+		intel_hdcp_update_value(connector,
+					DRM_MODE_CONTENT_PROTECTION_DESIRED,
+					true);
 		goto out;
 	}
 
@@ -1716,16 +1734,18 @@ static int intel_hdcp2_check_link(struct intel_connector *connector)
 			  I915_READ(HDCP2_STATUS(dev_priv, cpu_transcoder,
 						 port)));
 		ret = -ENXIO;
-		hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
-		schedule_work(&hdcp->prop_work);
+		intel_hdcp_update_value(connector,
+					DRM_MODE_CONTENT_PROTECTION_DESIRED,
+					true);
 		goto out;
 	}
 
 	ret = hdcp->shim->check_2_2_link(intel_dig_port);
 	if (ret == HDCP_LINK_PROTECTED) {
 		if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
-			hdcp->value = DRM_MODE_CONTENT_PROTECTION_ENABLED;
-			schedule_work(&hdcp->prop_work);
+			intel_hdcp_update_value(connector,
+					DRM_MODE_CONTENT_PROTECTION_ENABLED,
+					true);
 		}
 		goto out;
 	}
@@ -1737,8 +1757,9 @@ static int intel_hdcp2_check_link(struct intel_connector *connector)
 		DRM_DEBUG_KMS("HDCP2.2 Downstream topology change\n");
 		ret = hdcp2_authenticate_repeater_topology(connector);
 		if (!ret) {
-			hdcp->value = DRM_MODE_CONTENT_PROTECTION_ENABLED;
-			schedule_work(&hdcp->prop_work);
+			intel_hdcp_update_value(connector,
+					DRM_MODE_CONTENT_PROTECTION_ENABLED,
+					true);
 			goto out;
 		}
 		DRM_DEBUG_KMS("[%s:%d] Repeater topology auth failed.(%d)\n",
@@ -1753,8 +1774,8 @@ static int intel_hdcp2_check_link(struct intel_connector *connector)
 	if (ret) {
 		DRM_ERROR("[%s:%d] Failed to disable hdcp2.2 (%d)\n",
 			  connector->base.name, connector->base.base.id, ret);
-		hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
-		schedule_work(&hdcp->prop_work);
+		intel_hdcp_update_value(connector,
+				DRM_MODE_CONTENT_PROTECTION_DESIRED, true);
 		goto out;
 	}
 
@@ -1763,8 +1784,9 @@ static int intel_hdcp2_check_link(struct intel_connector *connector)
 		DRM_DEBUG_KMS("[%s:%d] Failed to enable hdcp2.2 (%d)\n",
 			      connector->base.name, connector->base.base.id,
 			      ret);
-		hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED;
-		schedule_work(&hdcp->prop_work);
+		intel_hdcp_update_value(connector,
+					DRM_MODE_CONTENT_PROTECTION_DESIRED,
+					true);
 		goto out;
 	}
 
@@ -2004,8 +2026,9 @@ int intel_hdcp_enable(struct intel_connector *connector,
 
 	if (!ret) {
 		schedule_delayed_work(&hdcp->check_work, check_link_interval);
-		hdcp->value = DRM_MODE_CONTENT_PROTECTION_ENABLED;
-		schedule_work(&hdcp->prop_work);
+		intel_hdcp_update_value(connector,
+					DRM_MODE_CONTENT_PROTECTION_ENABLED,
+					true);
 	}
 
 	mutex_unlock(&hdcp->mutex);
@@ -2023,7 +2046,9 @@ int intel_hdcp_disable(struct intel_connector *connector)
 	mutex_lock(&hdcp->mutex);
 
 	if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
-		hdcp->value = DRM_MODE_CONTENT_PROTECTION_UNDESIRED;
+		intel_hdcp_update_value(connector,
+					DRM_MODE_CONTENT_PROTECTION_UNDESIRED,
+					false);
 		if (hdcp->hdcp2_encrypted)
 			ret = _intel_hdcp2_disable(connector);
 		else if (hdcp->hdcp_encrypted)
-- 
Sean Paul, Software Engineer, Google / Chromium OS

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

  parent reply	other threads:[~2020-01-17 19:31 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-17 19:30 [PATCH v3 00/12] drm/i915: Add support for HDCP 1.4 over MST connectors Sean Paul
2020-01-17 19:30 ` [PATCH v3 01/12] drm/i915: Fix sha_text population code Sean Paul
2020-01-19 15:26   ` Sasha Levin
2020-01-17 19:30 ` [PATCH v3 02/12] drm/i915: Clear the repeater bit on HDCP disable Sean Paul
2020-01-19 15:26   ` Sasha Levin
2020-01-17 19:30 ` [PATCH v3 03/12] drm/i915: WARN if HDCP signalling is enabled upon disable Sean Paul
2020-01-17 19:30 ` [PATCH v3 04/12] drm/i915: Intercept Aksv writes in the aux hooks Sean Paul
2020-01-17 19:30 ` [PATCH v3 05/12] drm/i915: Use the cpu_transcoder in intel_hdcp to toggle HDCP signalling Sean Paul
2020-01-17 19:30 ` Sean Paul [this message]
2020-01-17 19:30 ` [PATCH v3 07/12] drm/i915: Protect workers against disappearing connectors Sean Paul
2020-01-17 19:30 ` [PATCH v3 08/12] drm/i915: Don't fully disable HDCP on a port if multiple pipes are using it Sean Paul
2020-02-02 19:03   ` Ramalingam C
2020-02-18 22:07     ` Sean Paul
2020-01-17 19:31 ` [PATCH v3 09/12] drm/i915: Support DP MST in enc_to_dig_port() function Sean Paul
2020-01-17 19:31 ` [PATCH v3 10/12] drm/i915: Use ddi_update_pipe in intel_dp_mst Sean Paul
2020-01-17 19:31 ` [PATCH v3 11/12] drm/i915: Factor out HDCP shim functions from dp for use by dp_mst Sean Paul
2020-01-17 19:31 ` [PATCH v3 12/12] drm/i915: Add HDCP 1.4 support for MST connectors Sean Paul
2020-01-27 14:06 ` [PATCH v3 00/12] drm/i915: Add support for HDCP 1.4 over " Sean Paul

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200117193103.156821-7-sean@poorly.run \
    --to=sean@poorly.run \
    --cc=daniel.vetter@ffwll.ch \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=intel-gfx@lists.freedesktop.org \
    --cc=rodrigo.vivi@intel.com \
    --cc=seanpaul@chromium.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).