Displaying 20 results from an estimated 32 matches for "mst_primary".
2019 Oct 22
0
[PATCH v5 08/14] drm/dp_mst: Lessen indenting in drm_dp_mst_topology_mgr_resume()
..._topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -3212,45 +3212,44 @@ EXPORT_SYMBOL(drm_dp_mst_topology_mgr_suspend);
*/
int drm_dp_mst_topology_mgr_resume(struct drm_dp_mst_topology_mgr *mgr)
{
- int ret = 0;
+ int ret;
+ u8 guid[16];
mutex_lock(&mgr->lock);
+ if (!mgr->mst_primary)
+ goto out_fail;
- if (mgr->mst_primary) {
- int sret;
- u8 guid[16];
+ ret = drm_dp_dpcd_read(mgr->aux, DP_DPCD_REV, mgr->dpcd,
+ DP_RECEIVER_CAP_SIZE);
+ if (ret != DP_RECEIVER_CAP_SIZE) {
+ DRM_DEBUG_KMS("dpcd read failed - undocked during suspend?\n");
+ goto...
2019 Sep 27
1
[PATCH v2 25/27] drm/dp_mst: Add basic topology reprobing when resuming
...drm_dp_mst_topology_mgr_suspend(struct drm_dp_mst_topology_mgr *mgr)
> flush_work(&mgr->up_req_work);
> flush_work(&mgr->work);
> flush_work(&mgr->delayed_destroy_work);
> +
> + mutex_lock(&mgr->lock);
> + if (mgr->mst_state && mgr->mst_primary)
> + drm_dp_mst_topology_mgr_invalidate_mstb(mgr->mst_primary);
> + mutex_unlock(&mgr->lock);
> }
> EXPORT_SYMBOL(drm_dp_mst_topology_mgr_suspend);
>
> /**
> * drm_dp_mst_topology_mgr_resume() - resume the MST manager
> * @mgr: manager to resume
> + *...
2019 Sep 03
0
[PATCH v2 10/27] drm/dp_mst: Remove huge conditional in drm_dp_mst_handle_up_req()
...cv.initial_hdr.seqno;
- drm_dp_sideband_parse_req(&mgr->up_req_recv, &msg);
+ seqno = mgr->up_req_recv.initial_hdr.seqno;
+ drm_dp_sideband_parse_req(&mgr->up_req_recv, &msg);
- if (msg.req_type == DP_CONNECTION_STATUS_NOTIFY) {
- drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, msg.req_type, seqno, false);
+ if (msg.req_type == DP_CONNECTION_STATUS_NOTIFY) {
+ drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, msg.req_type, seqno, false);
- if (!mstb)
- mstb = drm_dp_get_mst_branch_device_by_guid(mgr, msg.u.conn_stat.guid);
+ if (!mstb)
+ mstb = drm_dp_get_mst...
2019 Sep 03
0
[PATCH v2 25/27] drm/dp_mst: Add basic topology reprobing when resuming
...d
@@ -3207,60 +3252,85 @@ void drm_dp_mst_topology_mgr_suspend(struct drm_dp_mst_topology_mgr *mgr)
flush_work(&mgr->up_req_work);
flush_work(&mgr->work);
flush_work(&mgr->delayed_destroy_work);
+
+ mutex_lock(&mgr->lock);
+ if (mgr->mst_state && mgr->mst_primary)
+ drm_dp_mst_topology_mgr_invalidate_mstb(mgr->mst_primary);
+ mutex_unlock(&mgr->lock);
}
EXPORT_SYMBOL(drm_dp_mst_topology_mgr_suspend);
/**
* drm_dp_mst_topology_mgr_resume() - resume the MST manager
* @mgr: manager to resume
+ * @sync: whether or not to perform topology rep...
2018 Dec 14
0
[WIP PATCH 03/15] drm/dp_mst: Introduce new refcounting scheme for mstbs and ports
...opology_mgr *mgr, struct drm_dp_mst_branch *mstb)
+static struct drm_dp_mst_branch *
+drm_dp_mst_topology_get_mstb_validated(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_branch *mstb)
{
struct drm_dp_mst_branch *rmstb = NULL;
+
mutex_lock(&mgr->lock);
- if (mgr->mst_primary)
- rmstb = drm_dp_mst_get_validated_mstb_ref_locked(mgr->mst_primary, mstb);
+ if (mgr->mst_primary) {
+ rmstb = drm_dp_mst_topology_get_mstb_validated_locked(
+ mgr->mst_primary, mstb);
+
+ if (rmstb && !drm_dp_mst_topology_get_mstb(rmstb))
+ rmstb = NULL;
+ }
mutex_un...
2018 Dec 14
2
[WIP PATCH 03/15] drm/dp_mst: Introduce new refcounting scheme for mstbs and ports
...ch *mstb)
> +static struct drm_dp_mst_branch *
> +drm_dp_mst_topology_get_mstb_validated(struct drm_dp_mst_topology_mgr *mgr,
> + struct drm_dp_mst_branch *mstb)
> {
> struct drm_dp_mst_branch *rmstb = NULL;
> +
> mutex_lock(&mgr->lock);
> - if (mgr->mst_primary)
> - rmstb = drm_dp_mst_get_validated_mstb_ref_locked(mgr->mst_primary, mstb);
> + if (mgr->mst_primary) {
> + rmstb = drm_dp_mst_topology_get_mstb_validated_locked(
> + mgr->mst_primary, mstb);
> +
> + if (rmstb && !drm_dp_mst_topology_get_mstb(rmstb))
&g...
2019 Jan 09
0
[PATCH v5 06/20] drm/dp_mst: Introduce new refcounting scheme for mstbs and ports
...{
rmstb = drm_dp_mst_topology_get_mstb_validated_locked(
@@ -1001,25 +1302,32 @@ drm_dp_mst_topology_get_mstb_validated(struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_branch *mstb)
{
struct drm_dp_mst_branch *rmstb = NULL;
+
mutex_lock(&mgr->lock);
- if (mgr->mst_primary)
+ if (mgr->mst_primary) {
rmstb = drm_dp_mst_topology_get_mstb_validated_locked(
mgr->mst_primary, mstb);
+
+ if (rmstb && !drm_dp_mst_topology_try_get_mstb(rmstb))
+ rmstb = NULL;
+ }
mutex_unlock(&mgr->lock);
return rmstb;
}
-static struct drm_dp_mst_port...
2018 Dec 19
1
[WIP PATCH 03/15] drm/dp_mst: Introduce new refcounting scheme for mstbs and ports
..._get_mstb_validated(struct drm_dp_mst_topology_mgr
> > > *mgr,
> > > + struct drm_dp_mst_branch *mstb)
> > > {
> > > struct drm_dp_mst_branch *rmstb = NULL;
> > > +
> > > mutex_lock(&mgr->lock);
> > > - if (mgr->mst_primary)
> > > - rmstb = drm_dp_mst_get_validated_mstb_ref_locked(mgr-
> > > >mst_primary, mstb);
> > > + if (mgr->mst_primary) {
> > > + rmstb = drm_dp_mst_topology_get_mstb_validated_locked(
> > > + mgr->mst_primary, mstb);
> > > +
>...
2019 Jan 05
0
[PATCH v4 02/16] drm/dp_mst: Introduce new refcounting scheme for mstbs and ports
...{
rmstb = drm_dp_mst_topology_get_mstb_validated_locked(
@@ -1001,25 +1302,32 @@ drm_dp_mst_topology_get_mstb_validated(struct drm_dp_mst_topology_mgr *mgr,
struct drm_dp_mst_branch *mstb)
{
struct drm_dp_mst_branch *rmstb = NULL;
+
mutex_lock(&mgr->lock);
- if (mgr->mst_primary)
+ if (mgr->mst_primary) {
rmstb = drm_dp_mst_topology_get_mstb_validated_locked(
mgr->mst_primary, mstb);
+
+ if (rmstb && !drm_dp_mst_topology_try_get_mstb(rmstb))
+ rmstb = NULL;
+ }
mutex_unlock(&mgr->lock);
return rmstb;
}
-static struct drm_dp_mst_port...
2018 Dec 18
0
[WIP PATCH 03/15] drm/dp_mst: Introduce new refcounting scheme for mstbs and ports
...ch *
> > +drm_dp_mst_topology_get_mstb_validated(struct drm_dp_mst_topology_mgr
> > *mgr,
> > + struct drm_dp_mst_branch *mstb)
> > {
> > struct drm_dp_mst_branch *rmstb = NULL;
> > +
> > mutex_lock(&mgr->lock);
> > - if (mgr->mst_primary)
> > - rmstb = drm_dp_mst_get_validated_mstb_ref_locked(mgr-
> > >mst_primary, mstb);
> > + if (mgr->mst_primary) {
> > + rmstb = drm_dp_mst_topology_get_mstb_validated_locked(
> > + mgr->mst_primary, mstb);
> > +
> > + if (rmstb &&...
2019 Sep 03
0
[PATCH v2 12/27] drm/dp_mst: Refactor drm_dp_mst_handle_up_req()
...ce %d\n",
+ hdr->lct);
+ goto out;
}
}
- seqno = mgr->up_req_recv.initial_hdr.seqno;
+ seqno = hdr->seqno;
drm_dp_sideband_parse_req(&mgr->up_req_recv, &msg);
- if (msg.req_type == DP_CONNECTION_STATUS_NOTIFY) {
- drm_dp_send_up_ack_reply(mgr, mgr->mst_primary, msg.req_type, seqno, false);
+ 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;
+ else
+ goto out;
- if (!mstb)
- mstb = drm_dp_get_mst_branch_device_by_guid(mgr, msg.u.c...
2019 Jul 18
2
[PATCH 00/26] 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
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 20
0
[PATCH v2 03/16] drm/dp_mst: Restart last_connected_port_and_mstb() if topology ref fails
...tic struct drm_dp_mst_branch *
+drm_dp_get_last_connected_port_and_mstb(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_branch *mstb,
+ int *port_num)
{
struct drm_dp_mst_branch *rmstb = NULL;
struct drm_dp_mst_port *found_port;
+
mutex_lock(&mgr->lock);
- if (mgr->mst_primary) {
+ if (!mgr->mst_primary)
+ goto out;
+
+ do {
found_port = drm_dp_get_last_connected_port_to_mstb(mstb);
+ if (!found_port)
+ break;
- if (found_port) {
+ if (drm_dp_mst_topology_try_get_mstb(found_port->parent)) {
rmstb = found_port->parent;
- if (drm_dp_mst_topology_t...
2019 Jan 09
0
[PATCH v5 07/20] drm/dp_mst: Restart last_connected_port_and_mstb() if topology ref fails
...tic struct drm_dp_mst_branch *
+drm_dp_get_last_connected_port_and_mstb(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_branch *mstb,
+ int *port_num)
{
struct drm_dp_mst_branch *rmstb = NULL;
struct drm_dp_mst_port *found_port;
+
mutex_lock(&mgr->lock);
- if (mgr->mst_primary) {
+ if (!mgr->mst_primary)
+ goto out;
+
+ do {
found_port = drm_dp_get_last_connected_port_to_mstb(mstb);
+ if (!found_port)
+ break;
- if (found_port) {
+ if (drm_dp_mst_topology_try_get_mstb(found_port->parent)) {
rmstb = found_port->parent;
- if (drm_dp_mst_topology_t...
2018 Dec 20
0
[PATCH v2 01/16] drm/dp_mst: Rename drm_dp_mst_get_validated_(port|mstb)_ref and friends
..._topology_mgr *mgr, struct drm_dp_mst_branch *mstb)
+static struct drm_dp_mst_branch *
+drm_dp_mst_topology_get_mstb_validated(struct drm_dp_mst_topology_mgr *mgr,
+ struct drm_dp_mst_branch *mstb)
{
struct drm_dp_mst_branch *rmstb = NULL;
mutex_lock(&mgr->lock);
if (mgr->mst_primary)
- rmstb = drm_dp_mst_get_validated_mstb_ref_locked(mgr->mst_primary, mstb);
+ rmstb = drm_dp_mst_topology_get_mstb_validated_locked(
+ mgr->mst_primary, mstb);
mutex_unlock(&mgr->lock);
return rmstb;
}
@@ -1021,7 +1027,9 @@ static struct drm_dp_mst_port *drm_dp_mst_get_por...
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
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
2018 Dec 20
22
[PATCH v2 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
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