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From: Wayne Lin <Wayne.Lin@amd.com>
To: <dri-devel@lists.freedesktop.org>
Cc: <ville.syrjala@linux.intel.com>, <lyude@redhat.com>,
	<stable@vger.kernel.org>, <Nicholas.Kazlauskas@amd.com>,
	<harry.wentland@amd.com>, <jerry.zuo@amd.com>,
	<eryk.brol@amd.com>, <qingqing.zhuo@amd.com>,
	Wayne Lin <Wayne.Lin@amd.com>
Subject: [PATCH v2 2/2] drm/dp_mst: Set CLEAR_PAYLOAD_ID_TABLE as broadcast
Date: Wed, 24 Feb 2021 18:15:21 +0800	[thread overview]
Message-ID: <20210224101521.6713-3-Wayne.Lin@amd.com> (raw)
In-Reply-To: <20210224101521.6713-1-Wayne.Lin@amd.com>

[Why & How]
According to DP spec, CLEAR_PAYLOAD_ID_TABLE is a path broadcast request
message and current implementation is incorrect. Fix it.

Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/drm_dp_mst_topology.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index f11b3f718031..c32b98389349 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1072,6 +1072,7 @@ static void build_clear_payload_id_table(struct drm_dp_sideband_msg_tx *msg)
 
 	req.req_type = DP_CLEAR_PAYLOAD_ID_TABLE;
 	drm_dp_encode_sideband_req(&req, msg);
+	msg->path_msg = true;
 }
 
 static int build_enum_path_resources(struct drm_dp_sideband_msg_tx *msg,
@@ -2722,7 +2723,8 @@ static int set_hdr_from_dst_qlock(struct drm_dp_sideband_msg_hdr *hdr,
 
 	req_type = txmsg->msg[0] & 0x7f;
 	if (req_type == DP_CONNECTION_STATUS_NOTIFY ||
-		req_type == DP_RESOURCE_STATUS_NOTIFY)
+		req_type == DP_RESOURCE_STATUS_NOTIFY ||
+		req_type == DP_CLEAR_PAYLOAD_ID_TABLE)
 		hdr->broadcast = 1;
 	else
 		hdr->broadcast = 0;
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: Wayne Lin <Wayne.Lin@amd.com>
To: <dri-devel@lists.freedesktop.org>
Cc: eryk.brol@amd.com, qingqing.zhuo@amd.com, stable@vger.kernel.org,
	jerry.zuo@amd.com, Wayne Lin <Wayne.Lin@amd.com>,
	Nicholas.Kazlauskas@amd.com
Subject: [PATCH v2 2/2] drm/dp_mst: Set CLEAR_PAYLOAD_ID_TABLE as broadcast
Date: Wed, 24 Feb 2021 18:15:21 +0800	[thread overview]
Message-ID: <20210224101521.6713-3-Wayne.Lin@amd.com> (raw)
In-Reply-To: <20210224101521.6713-1-Wayne.Lin@amd.com>

[Why & How]
According to DP spec, CLEAR_PAYLOAD_ID_TABLE is a path broadcast request
message and current implementation is incorrect. Fix it.

Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/drm_dp_mst_topology.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index f11b3f718031..c32b98389349 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1072,6 +1072,7 @@ static void build_clear_payload_id_table(struct drm_dp_sideband_msg_tx *msg)
 
 	req.req_type = DP_CLEAR_PAYLOAD_ID_TABLE;
 	drm_dp_encode_sideband_req(&req, msg);
+	msg->path_msg = true;
 }
 
 static int build_enum_path_resources(struct drm_dp_sideband_msg_tx *msg,
@@ -2722,7 +2723,8 @@ static int set_hdr_from_dst_qlock(struct drm_dp_sideband_msg_hdr *hdr,
 
 	req_type = txmsg->msg[0] & 0x7f;
 	if (req_type == DP_CONNECTION_STATUS_NOTIFY ||
-		req_type == DP_RESOURCE_STATUS_NOTIFY)
+		req_type == DP_RESOURCE_STATUS_NOTIFY ||
+		req_type == DP_CLEAR_PAYLOAD_ID_TABLE)
 		hdr->broadcast = 1;
 	else
 		hdr->broadcast = 0;
-- 
2.17.1

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  parent reply	other threads:[~2021-02-24 10:18 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-24 10:15 [PATCH v2 0/2] Set CLEAR_PAYLOAD_ID_TABLE as broadcast request Wayne Lin
2021-02-24 10:15 ` Wayne Lin
2021-02-24 10:15 ` [PATCH v2 1/2] drm/dp_mst: Revise broadcast msg lct & lcr Wayne Lin
2021-02-24 10:15   ` Wayne Lin
2021-02-24 10:15 ` Wayne Lin [this message]
2021-02-24 10:15   ` [PATCH v2 2/2] drm/dp_mst: Set CLEAR_PAYLOAD_ID_TABLE as broadcast Wayne Lin
2021-02-24 18:08 ` [PATCH v2 0/2] Set CLEAR_PAYLOAD_ID_TABLE as broadcast request Lyude Paul
2021-02-24 18:08   ` Lyude Paul
2021-02-25  2:32   ` Lin, Wayne
2021-02-25  2:32     ` Lin, Wayne

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