Displaying 20 results from an estimated 23 matches for "drm_dp_get_mst_branch_device".
2019 Sep 03
0
[PATCH v2 13/27] drm/dp_mst: Refactor drm_dp_mst_handle_down_rep()
...ial_hdr;
+ int slot = -1;
+
+ if (!drm_dp_get_one_sb_msg(mgr, false))
+ goto clear_down_rep_recv;
- if (!drm_dp_get_one_sb_msg(mgr, false)) {
- memset(&mgr->down_rep_recv, 0,
- sizeof(struct drm_dp_sideband_msg_rx));
+ if (!mgr->down_rep_recv.have_eomt)
return 0;
+
+ mstb = drm_dp_get_mst_branch_device(mgr, hdr->lct, hdr->rad);
+ if (!mstb) {
+ DRM_DEBUG_KMS("Got MST reply from unknown device %d\n",
+ hdr->lct);
+ goto clear_down_rep_recv;
}
- if (mgr->down_rep_recv.have_eomt) {
- struct drm_dp_sideband_msg_tx *txmsg;
- struct drm_dp_mst_branch *mstb;
- int...
2019 Sep 03
0
[PATCH v2 12/27] drm/dp_mst: Refactor drm_dp_mst_handle_up_req()
...e_sb_msg(mgr, true)) {
- memset(&mgr->up_req_recv, 0,
- sizeof(struct drm_dp_sideband_msg_rx));
- return 0;
- }
+ if (!drm_dp_get_one_sb_msg(mgr, true))
+ goto out;
if (!mgr->up_req_recv.have_eomt)
return 0;
- if (!mgr->up_req_recv.initial_hdr.broadcast) {
- mstb = drm_dp_get_mst_branch_device(mgr,
- mgr->up_req_recv.initial_hdr.lct,
- mgr->up_req_recv.initial_hdr.rad);
+ if (!hdr->broadcast) {
+ mstb = drm_dp_get_mst_branch_device(mgr, hdr->lct, hdr->rad);
if (!mstb) {
- DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_r...
2019 Sep 03
0
[PATCH v2 10/27] drm/dp_mst: Remove huge conditional in drm_dp_mst_handle_up_req()
...@ static int drm_dp_mst_handle_up_req(struct drm_dp_mst_topology_mgr *mgr)
return 0;
}
- if (mgr->up_req_recv.have_eomt) {
- struct drm_dp_sideband_msg_req_body msg;
- struct drm_dp_mst_branch *mstb = NULL;
- bool seqno;
-
- if (!mgr->up_req_recv.initial_hdr.broadcast) {
- mstb = drm_dp_get_mst_branch_device(mgr,
- mgr->up_req_recv.initial_hdr.lct,
- mgr->up_req_recv.initial_hdr.rad);
- if (!mstb) {
- DRM_DEBUG_KMS("Got MST reply from unknown device %d\n", mgr->up_req_recv.initial_hdr.lct);
- memset(&mgr->up_req_recv, 0, sizeof(struct drm_dp_sideban...
2019 Sep 03
0
[PATCH v2 19/27] drm/dp_mst: Handle UP requests asynchronously
...d_msg_hdr *hdr = &up_req->hdr;
+
+ if (hdr->broadcast) {
+ const u8 *guid = NULL;
+
+ if (msg->req_type == DP_CONNECTION_STATUS_NOTIFY)
+ guid = msg->u.conn_stat.guid;
+ else if (msg->req_type == DP_RESOURCE_STATUS_NOTIFY)
+ guid = msg->u.resource_stat.guid;
+
+ mstb = drm_dp_get_mst_branch_device_by_guid(mgr, guid);
+ } else {
+ mstb = drm_dp_get_mst_branch_device(mgr, hdr->lct, hdr->rad);
+ }
+
+ if (!mstb) {
+ DRM_DEBUG_KMS("Got MST reply from unknown device %d\n",
+ hdr->lct);
+ return;
+ }
+
+ /* TODO: Add missing handler for DP_RESOURCE_STATUS_NOTIFY event...
2019 Oct 22
0
[PATCH v5 04/14] drm/dp_mst: Handle UP requests asynchronously
...d_msg_hdr *hdr = &up_req->hdr;
+
+ if (hdr->broadcast) {
+ const u8 *guid = NULL;
+
+ if (msg->req_type == DP_CONNECTION_STATUS_NOTIFY)
+ guid = msg->u.conn_stat.guid;
+ else if (msg->req_type == DP_RESOURCE_STATUS_NOTIFY)
+ guid = msg->u.resource_stat.guid;
+
+ mstb = drm_dp_get_mst_branch_device_by_guid(mgr, guid);
+ } else {
+ mstb = drm_dp_get_mst_branch_device(mgr, hdr->lct, hdr->rad);
+ }
+
+ if (!mstb) {
+ DRM_DEBUG_KMS("Got MST reply from unknown device %d\n",
+ hdr->lct);
+ return;
+ }
+
+ /* TODO: Add missing handler for DP_RESOURCE_STATUS_NOTIFY event...
2019 Sep 03
0
[PATCH v2 11/27] drm/dp_mst: Constify guid in drm_dp_get_mst_branch_by_guid()
...tions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 43452872efad..b44d3696c09a 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -2060,7 +2060,7 @@ static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_
static struct drm_dp_mst_branch *get_mst_branch_device_by_guid_helper(
struct drm_dp_mst_branch *mstb,
- uint8_t *guid)
+ const uint8_t *guid)
{
struct drm_dp_mst_branch *found_mstb;
struct drm_dp_mst_port *port;
@@ -2084,7 +2084,7 @@ static struct drm_dp_mst_branch *ge...
2019 Sep 03
0
[PATCH v2 21/27] drm/dp_mst: Don't forget to update port->input in drm_dp_mst_handle_conn_stat()
...ctor(mgr, connector_to_destroy);
+ else if (create_connector)
+ drm_dp_mst_port_add_connector(mstb, port);
+
+ mutex_unlock(&port->lock);
+
drm_dp_mst_topology_put_port(port);
if (dowork)
queue_work(system_long_wq, &mstb->mgr->work);
-
}
static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_topology_mgr *mgr,
--
2.21.0
2019 Jan 09
0
[PATCH v5 06/20] drm/dp_mst: Introduce new refcounting scheme for mstbs and ports
...s list */
if (created) {
mutex_lock(&mstb->mgr->lock);
- kref_get(&port->kref);
+ drm_dp_mst_topology_get_port(port);
list_add(&port->next, &mstb->ports);
mutex_unlock(&mstb->mgr->lock);
}
@@ -1284,7 +1613,7 @@ static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_
{
struct drm_dp_mst_branch *mstb;
struct drm_dp_mst_port *port;
- int i;
+ int i, ret;
/* find the port by iterating down */
mutex_lock(&mgr->lock);
@@ -1309,7 +1638,9 @@ static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_
}
}...
2019 Jan 05
0
[PATCH v4 02/16] drm/dp_mst: Introduce new refcounting scheme for mstbs and ports
...nch *mstb,
drm_dp_mst_topology_put_port(port);
goto out;
}
+
if ((port->pdt == DP_PEER_DEVICE_DP_LEGACY_CONV ||
port->pdt == DP_PEER_DEVICE_SST_SINK) &&
port->port_num >= DP_MST_LOGICAL_PORT_0) {
@@ -1278,7 +1611,7 @@ static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_
{
struct drm_dp_mst_branch *mstb;
struct drm_dp_mst_port *port;
- int i;
+ int i, ret;
/* find the port by iterating down */
mutex_lock(&mgr->lock);
@@ -1303,7 +1636,9 @@ static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_
}
}...
2019 Sep 03
50
[PATCH v2 00/27] DP MST Refactors + debugging tools + suspend/resume reprobing
This is the large series for adding MST suspend/resume reprobing that
I've been working on for quite a while now. In addition, I:
- Refactored and cleaned up any code I ended up digging through in the
process of understanding how some parts of these helpers worked.
- Added some debugging tools along the way that I ended up needing to
figure out some issues in my own code
Note that
2018 Dec 14
0
[WIP PATCH 03/15] drm/dp_mst: Introduce new refcounting scheme for mstbs and ports
...-1259,7 +1506,7 @@ static void drm_dp_update_port(struct drm_dp_mst_branch *mstb,
dowork = true;
}
- drm_dp_put_port(port);
+ drm_dp_mst_topology_put_port(port);
if (dowork)
queue_work(system_long_wq, &mstb->mgr->work);
@@ -1270,7 +1517,7 @@ static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_
{
struct drm_dp_mst_branch *mstb;
struct drm_dp_mst_port *port;
- int i;
+ int i, ret;
/* find the port by iterating down */
mutex_lock(&mgr->lock);
@@ -1295,7 +1542,9 @@ static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_
}
}...
2018 Dec 14
2
[WIP PATCH 03/15] drm/dp_mst: Introduce new refcounting scheme for mstbs and ports
...port(struct drm_dp_mst_branch *mstb,
> dowork = true;
> }
>
> - drm_dp_put_port(port);
> + drm_dp_mst_topology_put_port(port);
> if (dowork)
> queue_work(system_long_wq, &mstb->mgr->work);
>
> @@ -1270,7 +1517,7 @@ static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_
> {
> struct drm_dp_mst_branch *mstb;
> struct drm_dp_mst_port *port;
> - int i;
> + int i, ret;
> /* find the port by iterating down */
>
> mutex_lock(&mgr->lock);
> @@ -1295,7 +1542,9 @@ static struct drm_dp_mst_branch *drm_dp_get_ms...
2018 Dec 19
1
[WIP PATCH 03/15] drm/dp_mst: Introduce new refcounting scheme for mstbs and ports
...> > > - drm_dp_put_port(port);
> > > + drm_dp_mst_topology_put_port(port);
> > > if (dowork)
> > > queue_work(system_long_wq, &mstb->mgr->work);
> > >
> > > @@ -1270,7 +1517,7 @@ static struct drm_dp_mst_branch
> > > *drm_dp_get_mst_branch_device(struct drm_dp_mst_
> > > {
> > > struct drm_dp_mst_branch *mstb;
> > > struct drm_dp_mst_port *port;
> > > - int i;
> > > + int i, ret;
> > > /* find the port by iterating down */
> > >
> > > mutex_lock(&mgr->...
2018 Dec 18
0
[WIP PATCH 03/15] drm/dp_mst: Introduce new refcounting scheme for mstbs and ports
...rk = true;
> > }
> >
> > - drm_dp_put_port(port);
> > + drm_dp_mst_topology_put_port(port);
> > if (dowork)
> > queue_work(system_long_wq, &mstb->mgr->work);
> >
> > @@ -1270,7 +1517,7 @@ static struct drm_dp_mst_branch
> > *drm_dp_get_mst_branch_device(struct drm_dp_mst_
> > {
> > struct drm_dp_mst_branch *mstb;
> > struct drm_dp_mst_port *port;
> > - int i;
> > + int i, ret;
> > /* find the port by iterating down */
> >
> > mutex_lock(&mgr->lock);
> > @@ -1295,7 +1542,9 @@ s...
2019 Oct 22
0
[PATCH v5 06/14] drm/dp_mst: Protect drm_dp_mst_port members with locking
...@ drm_dp_mst_handle_conn_stat(struct drm_dp_mst_branch *mstb,
}
}
+ if (port->connector)
+ drm_modeset_unlock(&mgr->base.lock);
+
drm_dp_mst_topology_put_port(port);
if (dowork)
queue_work(system_long_wq, &mstb->mgr->work);
-
}
static struct drm_dp_mst_branch *drm_dp_get_mst_branch_device(struct drm_dp_mst_topology_mgr *mgr,
@@ -2157,8 +2220,11 @@ static void drm_dp_check_and_send_link_address(struct drm_dp_mst_topology_mgr *m
if (port->input || !port->ddps)
continue;
- if (!port->available_pbn)
+ if (!port->available_pbn) {
+ drm_modeset_lock(&mgr->b...
2019 Jan 05
19
[PATCH v4 00/16] MST refcounting/atomic helpers cleanup
This is the series I've been working on for a while now to get all of
the atomic DRM drivers in the tree to use the atomic MST helpers, and to
make the atomic MST helpers actually idempotent. Turns out it's a lot
more difficult to do that without also fixing how port and branch device
refcounting works so that it actually makes sense, since the current
upstream implementation requires a
2018 Dec 14
22
[WIP PATCH 00/15] MST refcounting/atomic helpers cleanup
This is a WIP version of the series I've been working on for a while now
to get all of the atomic DRM drivers in the tree to use the atomic MST
helpers, and to make the atomic MST helpers actually idempotent. Turns
out it's a lot more difficult to do that without also fixing how port
and branch device refcounting works so that it actually makes sense,
since the current upstream
2019 Jan 09
27
[PATCH v5 00/20] MST refcounting/atomic helpers cleanup
This is the series I've been working on for a while now to get all of
the atomic DRM drivers in the tree to use the atomic MST helpers, and to
make the atomic MST helpers actually idempotent. Turns out it's a lot
more difficult to do that without also fixing how port and branch device
refcounting works so that it actually makes sense, since the current
upstream implementation requires a
2019 Oct 22
17
[PATCH v5 00/14] DP MST Refactors + debugging tools + suspend/resume reprobing
This is the final portion of the large series for adding MST
suspend/resume reprobing that I've been working on for quite a while
now. In addition, I:
* Refactored and cleaned up any code I ended up digging through in the
process of understanding how some parts of these helpers worked.
* Added some debugging tools along the way that I ended up needing to
figure out some issues in my own
2019 Jan 03
16
[PATCH v3 00/16] MST refcounting/atomic helpers cleanup
This is the series I've been working on for a while now to get all of
the atomic DRM drivers in the tree to use the atomic MST helpers, and to
make the atomic MST helpers actually idempotent. Turns out it's a lot
more difficult to do that without also fixing how port and branch device
refcounting works so that it actually makes sense, since the current
upstream implementation requires a