Lines Matching full:topology
55 * protocol. The helpers contain a topology manager and bandwidth manager.
1400 * Topology refcount overview
1405 * two different kinds of refcounts: topology refcounts, and malloc refcounts.
1407 * Topology refcounts are not exposed to drivers, and are handled internally
1409 * in-memory topology state from being changed in the middle of critical
1412 * of the topology until its topology refcount reaches zero. Additionally,
1420 * drm_dp_mst_branch allocated even after all of its topology references have
1422 * branch's last known state before it was disconnected from the topology.
1434 * Refcount relationships in a topology
1437 * Let's take a look at why the relationship between topology and malloc
1440 * .. kernel-figure:: dp-mst/topology-figure-1.dot
1442 * An example of topology and malloc refs in a DP MST topology with two
1443 * active payloads. Topology refcount increments are indicated by solid
1449 * As you can see in the above figure, every branch increments the topology
1456 * topology would start to look like the figure below.
1458 * .. kernel-figure:: dp-mst/topology-figure-2.dot
1463 * Whenever a port or branch device's topology refcount reaches zero, it will
1464 * decrement the topology refcounts of all its children, the malloc refcount
1466 * #4, this means they both have been disconnected from the topology and freed
1468 * #3, port #3 is removed from the topology but its &struct drm_dp_mst_port
1476 * connected to the topology. In this case, we would travel up the topology as
1479 * .. kernel-figure:: dp-mst/topology-figure-3.dot
1665 drm_printf(&p, "%s (%p) topology count reached 0, dumping history:\n", in __dump_topology_ref_history()
1764 * drm_dp_mst_topology_try_get_mstb() - Increment the topology refcount of a
1766 * @mstb: &struct drm_dp_mst_branch to increment the topology refcount of
1768 * Attempts to grab a topology reference to @mstb, if it hasn't yet been
1769 * removed from the topology (e.g. &drm_dp_mst_branch.topology_kref has
1770 * reached 0). Holding a topology reference implies that a malloc reference
1771 * will be held to @mstb as long as the user holds the topology reference.
1774 * reference to @mstb. If you already have a topology reference to @mstb, you
1782 * * 1: A topology reference was grabbed successfully
1783 * * 0: @port is no longer in the topology, no reference was grabbed
1803 * drm_dp_mst_topology_get_mstb() - Increment the topology refcount of a
1805 * @mstb: The &struct drm_dp_mst_branch to increment the topology refcount of
1809 * you are already guaranteed to have at least one active topology reference
1829 * drm_dp_mst_topology_put_mstb() - release a topology reference to a branch
1831 * @mstb: The &struct drm_dp_mst_branch to release the topology reference from
1833 * Releases a topology reference from @mstb by decrementing
1879 * drm_dp_mst_topology_try_get_port() - Increment the topology refcount of a
1881 * @port: &struct drm_dp_mst_port to increment the topology refcount of
1883 * Attempts to grab a topology reference to @port, if it hasn't yet been
1884 * removed from the topology (e.g. &drm_dp_mst_port.topology_kref has reached
1885 * 0). Holding a topology reference implies that a malloc reference will be
1886 * held to @port as long as the user holds the topology reference.
1889 * reference to @port. If you already have a topology reference to @port, you
1897 * * 1: A topology reference was grabbed successfully
1898 * * 0: @port is no longer in the topology, no reference was grabbed
1917 * drm_dp_mst_topology_get_port() - Increment the topology refcount of a port
1918 * @port: The &struct drm_dp_mst_port to increment the topology refcount of
1922 * you are already guaranteed to have at least one active topology reference
1942 * drm_dp_mst_topology_put_port() - release a topology reference to a port
1943 * @port: The &struct drm_dp_mst_port to release the topology reference from
1945 * Releases a topology reference from @port by decrementing
2326 * Drop a topology reference, and unlink the port from the in-memory topology
3011 * topology, but were not seen in this link address. Usually this in drm_dp_send_link_address()
3012 * means that they were removed while the topology was out of sync, in drm_dp_send_link_address()
3121 * Searches upwards in the topology starting from mstb to try to find the
3123 * topology. This can be used in order to perform operations like releasing
3199 * mstb could also be removed from the topology. In the future, this in drm_dp_payload_send_msg()
3202 * timeout if the topology is still connected to the system. in drm_dp_payload_send_msg()
3395 "Virtual channel %d is not in current topology\n", in drm_dp_update_payload_part1()
3699 * drm_dp_mst_topology_mgr_set_mst() - Set the MST state for a topology manager
3836 * @sync: whether or not to perform topology reprobing synchronously
3850 * Returns: -1 if the MST topology was removed while we were suspended, 0
3893 * For the final step of resuming the topology, we need to bring the in drm_dp_mst_topology_mgr_resume()
3894 * state of our in-memory topology back into sync with reality. So, in drm_dp_mst_topology_mgr_resume()
3902 "Waiting for link probe work to finish re-syncing topology...\n"); in drm_dp_mst_topology_mgr_resume()
4190 * topology manager will process the sideband messages received as a result
4354 * @mgr: MST topology manager for the port
4454 * @mgr: MST topology manager for the port
4840 * drm_dp_mst_dump_topology(): dump topology to seq file.
4842 * @mgr: manager to dump current topology for.
4844 * helper to dump MST topology to a seq file for debugfs.
5268 * @mgr: MST topology manager
5270 * Whenever there is a change in mst topology
5273 * CRTCs in that topology
5391 * drm_dp_mst_atomic_check - Check that the new state of an MST topology in an
5395 * Checks the given topology state for an atomic update to ensure that it's
5446 * drm_atomic_get_mst_topology_state: get MST topology state
5449 * @mgr: MST topology manager, also the private object in this case
5453 * topology object. Also, drm_atomic_get_private_obj_state() expects the caller
5458 * The MST topology state or error pointer.
5468 * drm_dp_mst_topology_mgr_init - initialise a topology manager
5504 * requeuing will be also flushed when deiniting the topology manager. in drm_dp_mst_topology_mgr_init()
5549 * drm_dp_mst_topology_mgr_destroy() - destroy topology manager.
5793 * A single physical MST hub object can be represented in the topology