drm/dp: Move public DisplayPort headers into dp/

Move all public DisplayPort headers into dp/ and update users. No
functional changes.

v3:
	* rebased onto latest drm-tip

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220114114535.29157-5-tzimmermann@suse.de

1 files changed, 0 insertions, 972 deletions

diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
deleted file mode 100644
index 78044ac5b59b..000000000000
--- a/include/drm/drm_dp_mst_helper.h
+++ /dev/null
@@ -1,972 +0,0 @@
-/*
- * Copyright © 2014 Red Hat.
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting documentation, and
- * that the name of the copyright holders not be used in advertising or
- * publicity pertaining to distribution of the software without specific,
- * written prior permission.  The copyright holders make no representations
- * about the suitability of this software for any purpose.  It is provided "as
- * is" without express or implied warranty.
- *
- * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
- * OF THIS SOFTWARE.
- */
-#ifndef _DRM_DP_MST_HELPER_H_
-#define _DRM_DP_MST_HELPER_H_
-
-#include <linux/types.h>
-#include <drm/drm_dp_helper.h>
-#include <drm/drm_atomic.h>
-
-#if IS_ENABLED(CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS)
-#include <linux/stackdepot.h>
-#include <linux/timekeeping.h>
-
-enum drm_dp_mst_topology_ref_type {
-	DRM_DP_MST_TOPOLOGY_REF_GET,
-	DRM_DP_MST_TOPOLOGY_REF_PUT,
-};
-
-struct drm_dp_mst_topology_ref_history {
-	struct drm_dp_mst_topology_ref_entry {
-		enum drm_dp_mst_topology_ref_type type;
-		int count;
-		ktime_t ts_nsec;
-		depot_stack_handle_t backtrace;
-	} *entries;
-	int len;
-};
-#endif /* IS_ENABLED(CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS) */
-
-struct drm_dp_mst_branch;
-
-/**
- * struct drm_dp_vcpi - Virtual Channel Payload Identifier
- * @vcpi: Virtual channel ID.
- * @pbn: Payload Bandwidth Number for this channel
- * @aligned_pbn: PBN aligned with slot size
- * @num_slots: number of slots for this PBN
- */
-struct drm_dp_vcpi {
-	int vcpi;
-	int pbn;
-	int aligned_pbn;
-	int num_slots;
-};
-
-/**
- * struct drm_dp_mst_port - MST port
- * @port_num: port number
- * @input: if this port is an input port. Protected by
- * &drm_dp_mst_topology_mgr.base.lock.
- * @mcs: message capability status - DP 1.2 spec. Protected by
- * &drm_dp_mst_topology_mgr.base.lock.
- * @ddps: DisplayPort Device Plug Status - DP 1.2. Protected by
- * &drm_dp_mst_topology_mgr.base.lock.
- * @pdt: Peer Device Type. Protected by
- * &drm_dp_mst_topology_mgr.base.lock.
- * @ldps: Legacy Device Plug Status. Protected by
- * &drm_dp_mst_topology_mgr.base.lock.
- * @dpcd_rev: DPCD revision of device on this port. Protected by
- * &drm_dp_mst_topology_mgr.base.lock.
- * @num_sdp_streams: Number of simultaneous streams. Protected by
- * &drm_dp_mst_topology_mgr.base.lock.
- * @num_sdp_stream_sinks: Number of stream sinks. Protected by
- * &drm_dp_mst_topology_mgr.base.lock.
- * @full_pbn: Max possible bandwidth for this port. Protected by
- * &drm_dp_mst_topology_mgr.base.lock.
- * @next: link to next port on this branch device
- * @aux: i2c aux transport to talk to device connected to this port, protected
- * by &drm_dp_mst_topology_mgr.base.lock.
- * @parent: branch device parent of this port
- * @vcpi: Virtual Channel Payload info for this port.
- * @connector: DRM connector this port is connected to. Protected by
- * &drm_dp_mst_topology_mgr.base.lock.
- * @mgr: topology manager this port lives under.
- *
- * This structure represents an MST port endpoint on a device somewhere
- * in the MST topology.
- */
-struct drm_dp_mst_port {
-	/**
-	 * @topology_kref: refcount for this port's lifetime in the topology,
-	 * only the DP MST helpers should need to touch this
-	 */
-	struct kref topology_kref;
-
-	/**
-	 * @malloc_kref: refcount for the memory allocation containing this
-	 * structure. See drm_dp_mst_get_port_malloc() and
-	 * drm_dp_mst_put_port_malloc().
-	 */
-	struct kref malloc_kref;
-
-#if IS_ENABLED(CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS)
-	/**
-	 * @topology_ref_history: A history of each topology
-	 * reference/dereference. See CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS.
-	 */
-	struct drm_dp_mst_topology_ref_history topology_ref_history;
-#endif
-
-	u8 port_num;
-	bool input;
-	bool mcs;
-	bool ddps;
-	u8 pdt;
-	bool ldps;
-	u8 dpcd_rev;
-	u8 num_sdp_streams;
-	u8 num_sdp_stream_sinks;
-	uint16_t full_pbn;
-	struct list_head next;
-	/**
-	 * @mstb: the branch device connected to this port, if there is one.
-	 * This should be considered protected for reading by
-	 * &drm_dp_mst_topology_mgr.lock. There are two exceptions to this:
-	 * &drm_dp_mst_topology_mgr.up_req_work and
-	 * &drm_dp_mst_topology_mgr.work, which do not grab
-	 * &drm_dp_mst_topology_mgr.lock during reads but are the only
-	 * updaters of this list and are protected from writing concurrently
-	 * by &drm_dp_mst_topology_mgr.probe_lock.
-	 */
-	struct drm_dp_mst_branch *mstb;
-	struct drm_dp_aux aux; /* i2c bus for this port? */
-	struct drm_dp_mst_branch *parent;
-
-	struct drm_dp_vcpi vcpi;
-	struct drm_connector *connector;
-	struct drm_dp_mst_topology_mgr *mgr;
-
-	/**
-	 * @cached_edid: for DP logical ports - make tiling work by ensuring
-	 * that the EDID for all connectors is read immediately.
-	 */
-	struct edid *cached_edid;
-	/**
-	 * @has_audio: Tracks whether the sink connector to this port is
-	 * audio-capable.
-	 */
-	bool has_audio;
-
-	/**
-	 * @fec_capable: bool indicating if FEC can be supported up to that
-	 * point in the MST topology.
-	 */
-	bool fec_capable;
-};
-
-/* sideband msg header - not bit struct */
-struct drm_dp_sideband_msg_hdr {
-	u8 lct;
-	u8 lcr;
-	u8 rad[8];
-	bool broadcast;
-	bool path_msg;
-	u8 msg_len;
-	bool somt;
-	bool eomt;
-	bool seqno;
-};
-
-struct drm_dp_sideband_msg_rx {
-	u8 chunk[48];
-	u8 msg[256];
-	u8 curchunk_len;
-	u8 curchunk_idx; /* chunk we are parsing now */
-	u8 curchunk_hdrlen;
-	u8 curlen; /* total length of the msg */
-	bool have_somt;
-	bool have_eomt;
-	struct drm_dp_sideband_msg_hdr initial_hdr;
-};
-
-/**
- * struct drm_dp_mst_branch - MST branch device.
- * @rad: Relative Address to talk to this branch device.
- * @lct: Link count total to talk to this branch device.
- * @num_ports: number of ports on the branch.
- * @port_parent: pointer to the port parent, NULL if toplevel.
- * @mgr: topology manager for this branch device.
- * @link_address_sent: if a link address message has been sent to this device yet.
- * @guid: guid for DP 1.2 branch device. port under this branch can be
- * identified by port #.
- *
- * This structure represents an MST branch device, there is one
- * primary branch device at the root, along with any other branches connected
- * to downstream port of parent branches.
- */
-struct drm_dp_mst_branch {
-	/**
-	 * @topology_kref: refcount for this branch device's lifetime in the
-	 * topology, only the DP MST helpers should need to touch this
-	 */
-	struct kref topology_kref;
-
-	/**
-	 * @malloc_kref: refcount for the memory allocation containing this
-	 * structure. See drm_dp_mst_get_mstb_malloc() and
-	 * drm_dp_mst_put_mstb_malloc().
-	 */
-	struct kref malloc_kref;
-
-#if IS_ENABLED(CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS)
-	/**
-	 * @topology_ref_history: A history of each topology
-	 * reference/dereference. See CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS.
-	 */
-	struct drm_dp_mst_topology_ref_history topology_ref_history;
-#endif
-
-	/**
-	 * @destroy_next: linked-list entry used by
-	 * drm_dp_delayed_destroy_work()
-	 */
-	struct list_head destroy_next;
-
-	u8 rad[8];
-	u8 lct;
-	int num_ports;
-
-	/**
-	 * @ports: the list of ports on this branch device. This should be
-	 * considered protected for reading by &drm_dp_mst_topology_mgr.lock.
-	 * There are two exceptions to this:
-	 * &drm_dp_mst_topology_mgr.up_req_work and
-	 * &drm_dp_mst_topology_mgr.work, which do not grab
-	 * &drm_dp_mst_topology_mgr.lock during reads but are the only
-	 * updaters of this list and are protected from updating the list
-	 * concurrently by @drm_dp_mst_topology_mgr.probe_lock
-	 */
-	struct list_head ports;
-
-	struct drm_dp_mst_port *port_parent;
-	struct drm_dp_mst_topology_mgr *mgr;
-
-	bool link_address_sent;
-
-	/* global unique identifier to identify branch devices */
-	u8 guid[16];
-};
-
-
-struct drm_dp_nak_reply {
-	u8 guid[16];
-	u8 reason;
-	u8 nak_data;
-};
-
-struct drm_dp_link_address_ack_reply {
-	u8 guid[16];
-	u8 nports;
-	struct drm_dp_link_addr_reply_port {
-		bool input_port;
-		u8 peer_device_type;
-		u8 port_number;
-		bool mcs;
-		bool ddps;
-		bool legacy_device_plug_status;
-		u8 dpcd_revision;
-		u8 peer_guid[16];
-		u8 num_sdp_streams;
-		u8 num_sdp_stream_sinks;
-	} ports[16];
-};
-
-struct drm_dp_remote_dpcd_read_ack_reply {
-	u8 port_number;
-	u8 num_bytes;
-	u8 bytes[255];
-};
-
-struct drm_dp_remote_dpcd_write_ack_reply {
-	u8 port_number;
-};
-
-struct drm_dp_remote_dpcd_write_nak_reply {
-	u8 port_number;
-	u8 reason;
-	u8 bytes_written_before_failure;
-};
-
-struct drm_dp_remote_i2c_read_ack_reply {
-	u8 port_number;
-	u8 num_bytes;
-	u8 bytes[255];
-};
-
-struct drm_dp_remote_i2c_read_nak_reply {
-	u8 port_number;
-	u8 nak_reason;
-	u8 i2c_nak_transaction;
-};
-
-struct drm_dp_remote_i2c_write_ack_reply {
-	u8 port_number;
-};
-
-struct drm_dp_query_stream_enc_status_ack_reply {
-	/* Bit[23:16]- Stream Id */
-	u8 stream_id;
-
-	/* Bit[15]- Signed */
-	bool reply_signed;
-
-	/* Bit[10:8]- Stream Output Sink Type */
-	bool unauthorizable_device_present;
-	bool legacy_device_present;
-	bool query_capable_device_present;
-
-	/* Bit[12:11]- Stream Output CP Type */
-	bool hdcp_1x_device_present;
-	bool hdcp_2x_device_present;
-
-	/* Bit[4]- Stream Authentication */
-	bool auth_completed;
-
-	/* Bit[3]- Stream Encryption */
-	bool encryption_enabled;
-
-	/* Bit[2]- Stream Repeater Function Present */
-	bool repeater_present;
-
-	/* Bit[1:0]- Stream State */
-	u8 state;
-};
-
-#define DRM_DP_MAX_SDP_STREAMS 16
-struct drm_dp_allocate_payload {
-	u8 port_number;
-	u8 number_sdp_streams;
-	u8 vcpi;
-	u16 pbn;
-	u8 sdp_stream_sink[DRM_DP_MAX_SDP_STREAMS];
-};
-
-struct drm_dp_allocate_payload_ack_reply {
-	u8 port_number;
-	u8 vcpi;
-	u16 allocated_pbn;
-};
-
-struct drm_dp_connection_status_notify {
-	u8 guid[16];
-	u8 port_number;
-	bool legacy_device_plug_status;
-	bool displayport_device_plug_status;
-	bool message_capability_status;
-	bool input_port;
-	u8 peer_device_type;
-};
-
-struct drm_dp_remote_dpcd_read {
-	u8 port_number;
-	u32 dpcd_address;
-	u8 num_bytes;
-};
-
-struct drm_dp_remote_dpcd_write {
-	u8 port_number;
-	u32 dpcd_address;
-	u8 num_bytes;
-	u8 *bytes;
-};
-
-#define DP_REMOTE_I2C_READ_MAX_TRANSACTIONS 4
-struct drm_dp_remote_i2c_read {
-	u8 num_transactions;
-	u8 port_number;
-	struct drm_dp_remote_i2c_read_tx {
-		u8 i2c_dev_id;
-		u8 num_bytes;
-		u8 *bytes;
-		u8 no_stop_bit;
-		u8 i2c_transaction_delay;
-	} transactions[DP_REMOTE_I2C_READ_MAX_TRANSACTIONS];
-	u8 read_i2c_device_id;
-	u8 num_bytes_read;
-};
-
-struct drm_dp_remote_i2c_write {
-	u8 port_number;
-	u8 write_i2c_device_id;
-	u8 num_bytes;
-	u8 *bytes;
-};
-
-struct drm_dp_query_stream_enc_status {
-	u8 stream_id;
-	u8 client_id[7];	/* 56-bit nonce */
-	u8 stream_event;
-	bool valid_stream_event;
-	u8 stream_behavior;
-	u8 valid_stream_behavior;
-};
-
-/* this covers ENUM_RESOURCES, POWER_DOWN_PHY, POWER_UP_PHY */
-struct drm_dp_port_number_req {
-	u8 port_number;
-};
-
-struct drm_dp_enum_path_resources_ack_reply {
-	u8 port_number;
-	bool fec_capable;
-	u16 full_payload_bw_number;
-	u16 avail_payload_bw_number;
-};
-
-/* covers POWER_DOWN_PHY, POWER_UP_PHY */
-struct drm_dp_port_number_rep {
-	u8 port_number;
-};
-
-struct drm_dp_query_payload {
-	u8 port_number;
-	u8 vcpi;
-};
-
-struct drm_dp_resource_status_notify {
-	u8 port_number;
-	u8 guid[16];
-	u16 available_pbn;
-};
-
-struct drm_dp_query_payload_ack_reply {
-	u8 port_number;
-	u16 allocated_pbn;
-};
-
-struct drm_dp_sideband_msg_req_body {
-	u8 req_type;
-	union ack_req {
-		struct drm_dp_connection_status_notify conn_stat;
-		struct drm_dp_port_number_req port_num;
-		struct drm_dp_resource_status_notify resource_stat;
-
-		struct drm_dp_query_payload query_payload;
-		struct drm_dp_allocate_payload allocate_payload;
-
-		struct drm_dp_remote_dpcd_read dpcd_read;
-		struct drm_dp_remote_dpcd_write dpcd_write;
-
-		struct drm_dp_remote_i2c_read i2c_read;
-		struct drm_dp_remote_i2c_write i2c_write;
-
-		struct drm_dp_query_stream_enc_status enc_status;
-	} u;
-};
-
-struct drm_dp_sideband_msg_reply_body {
-	u8 reply_type;
-	u8 req_type;
-	union ack_replies {
-		struct drm_dp_nak_reply nak;
-		struct drm_dp_link_address_ack_reply link_addr;
-		struct drm_dp_port_number_rep port_number;
-
-		struct drm_dp_enum_path_resources_ack_reply path_resources;
-		struct drm_dp_allocate_payload_ack_reply allocate_payload;
-		struct drm_dp_query_payload_ack_reply query_payload;
-
-		struct drm_dp_remote_dpcd_read_ack_reply remote_dpcd_read_ack;
-		struct drm_dp_remote_dpcd_write_ack_reply remote_dpcd_write_ack;
-		struct drm_dp_remote_dpcd_write_nak_reply remote_dpcd_write_nack;
-
-		struct drm_dp_remote_i2c_read_ack_reply remote_i2c_read_ack;
-		struct drm_dp_remote_i2c_read_nak_reply remote_i2c_read_nack;
-		struct drm_dp_remote_i2c_write_ack_reply remote_i2c_write_ack;
-
-		struct drm_dp_query_stream_enc_status_ack_reply enc_status;
-	} u;
-};
-
-/* msg is queued to be put into a slot */
-#define DRM_DP_SIDEBAND_TX_QUEUED 0
-/* msg has started transmitting on a slot - still on msgq */
-#define DRM_DP_SIDEBAND_TX_START_SEND 1
-/* msg has finished transmitting on a slot - removed from msgq only in slot */
-#define DRM_DP_SIDEBAND_TX_SENT 2
-/* msg has received a response - removed from slot */
-#define DRM_DP_SIDEBAND_TX_RX 3
-#define DRM_DP_SIDEBAND_TX_TIMEOUT 4
-
-struct drm_dp_sideband_msg_tx {
-	u8 msg[256];
-	u8 chunk[48];
-	u8 cur_offset;
-	u8 cur_len;
-	struct drm_dp_mst_branch *dst;
-	struct list_head next;
-	int seqno;
-	int state;
-	bool path_msg;
-	struct drm_dp_sideband_msg_reply_body reply;
-};
-
-/* sideband msg handler */
-struct drm_dp_mst_topology_mgr;
-struct drm_dp_mst_topology_cbs {
-	/* create a connector for a port */
-	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
-	/*
-	 * Checks for any pending MST interrupts, passing them to MST core for
-	 * processing, the same way an HPD IRQ pulse handler would do this.
-	 * If provided MST core calls this callback from a poll-waiting loop
-	 * when waiting for MST down message replies. The driver is expected
-	 * to guard against a race between this callback and the driver's HPD
-	 * IRQ pulse handler.
-	 */
-	void (*poll_hpd_irq)(struct drm_dp_mst_topology_mgr *mgr);
-};
-
-#define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
-
-#define DP_PAYLOAD_LOCAL 1
-#define DP_PAYLOAD_REMOTE 2
-#define DP_PAYLOAD_DELETE_LOCAL 3
-
-struct drm_dp_payload {
-	int payload_state;
-	int start_slot;
-	int num_slots;
-	int vcpi;
-};
-
-#define to_dp_mst_topology_state(x) container_of(x, struct drm_dp_mst_topology_state, base)
-
-struct drm_dp_vcpi_allocation {
-	struct drm_dp_mst_port *port;
-	int vcpi;
-	int pbn;
-	bool dsc_enabled;
-	struct list_head next;
-};
-
-struct drm_dp_mst_topology_state {
-	struct drm_private_state base;
-	struct list_head vcpis;
-	struct drm_dp_mst_topology_mgr *mgr;
-	u8 total_avail_slots;
-	u8 start_slot;
-};
-
-#define to_dp_mst_topology_mgr(x) container_of(x, struct drm_dp_mst_topology_mgr, base)
-
-/**
- * struct drm_dp_mst_topology_mgr - DisplayPort MST manager
- *
- * This struct represents the toplevel displayport MST topology manager.
- * There should be one instance of this for every MST capable DP connector
- * on the GPU.
- */
-struct drm_dp_mst_topology_mgr {
-	/**
-	 * @base: Base private object for atomic
-	 */
-	struct drm_private_obj base;
-
-	/**
-	 * @dev: device pointer for adding i2c devices etc.
-	 */
-	struct drm_device *dev;
-	/**
-	 * @cbs: callbacks for connector addition and destruction.
-	 */
-	const struct drm_dp_mst_topology_cbs *cbs;
-	/**
-	 * @max_dpcd_transaction_bytes: maximum number of bytes to read/write
-	 * in one go.
-	 */
-	int max_dpcd_transaction_bytes;
-	/**
-	 * @aux: AUX channel for the DP MST connector this topolgy mgr is
-	 * controlling.
-	 */
-	struct drm_dp_aux *aux;
-	/**
-	 * @max_payloads: maximum number of payloads the GPU can generate.
-	 */
-	int max_payloads;
-	/**
-	 * @max_lane_count: maximum number of lanes the GPU can drive.
-	 */
-	int max_lane_count;
-	/**
-	 * @max_link_rate: maximum link rate per lane GPU can output, in kHz.
-	 */
-	int max_link_rate;
-	/**
-	 * @conn_base_id: DRM connector ID this mgr is connected to. Only used
-	 * to build the MST connector path value.
-	 */
-	int conn_base_id;
-
-	/**
-	 * @up_req_recv: Message receiver state for up requests.
-	 */
-	struct drm_dp_sideband_msg_rx up_req_recv;
-
-	/**
-	 * @down_rep_recv: Message receiver state for replies to down
-	 * requests.
-	 */
-	struct drm_dp_sideband_msg_rx down_rep_recv;
-
-	/**
-	 * @lock: protects @mst_state, @mst_primary, @dpcd, and
-	 * @payload_id_table_cleared.
-	 */
-	struct mutex lock;
-
-	/**
-	 * @probe_lock: Prevents @work and @up_req_work, the only writers of
-	 * &drm_dp_mst_port.mstb and &drm_dp_mst_branch.ports, from racing
-	 * while they update the topology.
-	 */
-	struct mutex probe_lock;
-
-	/**
-	 * @mst_state: If this manager is enabled for an MST capable port. False
-	 * if no MST sink/branch devices is connected.
-	 */
-	bool mst_state : 1;
-
-	/**
-	 * @payload_id_table_cleared: Whether or not we've cleared the payload
-	 * ID table for @mst_primary. Protected by @lock.
-	 */
-	bool payload_id_table_cleared : 1;
-
-	/**
-	 * @mst_primary: Pointer to the primary/first branch device.
-	 */
-	struct drm_dp_mst_branch *mst_primary;
-
-	/**
-	 * @dpcd: Cache of DPCD for primary port.
-	 */
-	u8 dpcd[DP_RECEIVER_CAP_SIZE];
-	/**
-	 * @sink_count: Sink count from DEVICE_SERVICE_IRQ_VECTOR_ESI0.
-	 */
-	u8 sink_count;
-	/**
-	 * @pbn_div: PBN to slots divisor.
-	 */
-	int pbn_div;
-
-	/**
-	 * @funcs: Atomic helper callbacks
-	 */
-	const struct drm_private_state_funcs *funcs;
-
-	/**
-	 * @qlock: protects @tx_msg_downq and &drm_dp_sideband_msg_tx.state
-	 */
-	struct mutex qlock;
-
-	/**
-	 * @tx_msg_downq: List of pending down requests
-	 */
-	struct list_head tx_msg_downq;
-
-	/**
-	 * @payload_lock: Protect payload information.
-	 */
-	struct mutex payload_lock;
-	/**
-	 * @proposed_vcpis: Array of pointers for the new VCPI allocation. The
-	 * VCPI structure itself is &drm_dp_mst_port.vcpi, and the size of
-	 * this array is determined by @max_payloads.
-	 */
-	struct drm_dp_vcpi **proposed_vcpis;
-	/**
-	 * @payloads: Array of payloads. The size of this array is determined
-	 * by @max_payloads.
-	 */
-	struct drm_dp_payload *payloads;
-	/**
-	 * @payload_mask: Elements of @payloads actually in use. Since
-	 * reallocation of active outputs isn't possible gaps can be created by
-	 * disabling outputs out of order compared to how they've been enabled.
-	 */
-	unsigned long payload_mask;
-	/**
-	 * @vcpi_mask: Similar to @payload_mask, but for @proposed_vcpis.
-	 */
-	unsigned long vcpi_mask;
-
-	/**
-	 * @tx_waitq: Wait to queue stall for the tx worker.
-	 */
-	wait_queue_head_t tx_waitq;
-	/**
-	 * @work: Probe work.
-	 */
-	struct work_struct work;
-	/**
-	 * @tx_work: Sideband transmit worker. This can nest within the main
-	 * @work worker for each transaction @work launches.
-	 */
-	struct work_struct tx_work;
-
-	/**
-	 * @destroy_port_list: List of to be destroyed connectors.
-	 */
-	struct list_head destroy_port_list;
-	/**
-	 * @destroy_branch_device_list: List of to be destroyed branch
-	 * devices.
-	 */
-	struct list_head destroy_branch_device_list;
-	/**
-	 * @delayed_destroy_lock: Protects @destroy_port_list and
-	 * @destroy_branch_device_list.
-	 */
-	struct mutex delayed_destroy_lock;
-
-	/**
-	 * @delayed_destroy_wq: Workqueue used for delayed_destroy_work items.
-	 * A dedicated WQ makes it possible to drain any requeued work items
-	 * on it.
-	 */
-	struct workqueue_struct *delayed_destroy_wq;
-
-	/**
-	 * @delayed_destroy_work: Work item to destroy MST port and branch
-	 * devices, needed to avoid locking inversion.
-	 */
-	struct work_struct delayed_destroy_work;
-
-	/**
-	 * @up_req_list: List of pending up requests from the topology that
-	 * need to be processed, in chronological order.
-	 */
-	struct list_head up_req_list;
-	/**
-	 * @up_req_lock: Protects @up_req_list
-	 */
-	struct mutex up_req_lock;
-	/**
-	 * @up_req_work: Work item to process up requests received from the
-	 * topology. Needed to avoid blocking hotplug handling and sideband
-	 * transmissions.
-	 */
-	struct work_struct up_req_work;
-
-#if IS_ENABLED(CONFIG_DRM_DEBUG_DP_MST_TOPOLOGY_REFS)
-	/**
-	 * @topology_ref_history_lock: protects
-	 * &drm_dp_mst_port.topology_ref_history and
-	 * &drm_dp_mst_branch.topology_ref_history.
-	 */
-	struct mutex topology_ref_history_lock;
-#endif
-};
-
-int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_topology_mgr *mgr,
-				 struct drm_device *dev, struct drm_dp_aux *aux,
-				 int max_dpcd_transaction_bytes,
-				 int max_payloads,
-				 int max_lane_count, int max_link_rate,
-				 int conn_base_id);
-
-void drm_dp_mst_topology_mgr_destroy(struct drm_dp_mst_topology_mgr *mgr);
-
-bool drm_dp_read_mst_cap(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE]);
-int drm_dp_mst_topology_mgr_set_mst(struct drm_dp_mst_topology_mgr *mgr, bool mst_state);
-
-int drm_dp_mst_hpd_irq(struct drm_dp_mst_topology_mgr *mgr, u8 *esi, bool *handled);
-
-
-int
-drm_dp_mst_detect_port(struct drm_connector *connector,
-		       struct drm_modeset_acquire_ctx *ctx,
-		       struct drm_dp_mst_topology_mgr *mgr,
-		       struct drm_dp_mst_port *port);
-
-struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
-
-int drm_dp_get_vc_payload_bw(const struct drm_dp_mst_topology_mgr *mgr,
-			     int link_rate, int link_lane_count);
-
-int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc);
-
-bool drm_dp_mst_allocate_vcpi(struct drm_dp_mst_topology_mgr *mgr,
-			      struct drm_dp_mst_port *port, int pbn, int slots);
-
-int drm_dp_mst_get_vcpi_slots(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
-
-
-void drm_dp_mst_reset_vcpi_slots(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
-
-void drm_dp_mst_update_slots(struct drm_dp_mst_topology_state *mst_state, uint8_t link_encoding_cap);
-
-void drm_dp_mst_deallocate_vcpi(struct drm_dp_mst_topology_mgr *mgr,
-				struct drm_dp_mst_port *port);
-
-
-int drm_dp_find_vcpi_slots(struct drm_dp_mst_topology_mgr *mgr,
-			   int pbn);
-
-
-int drm_dp_update_payload_part1(struct drm_dp_mst_topology_mgr *mgr, int start_slot);
-
-
-int drm_dp_update_payload_part2(struct drm_dp_mst_topology_mgr *mgr);
-
-int drm_dp_check_act_status(struct drm_dp_mst_topology_mgr *mgr);
-
-void drm_dp_mst_dump_topology(struct seq_file *m,
-			      struct drm_dp_mst_topology_mgr *mgr);
-
-void drm_dp_mst_topology_mgr_suspend(struct drm_dp_mst_topology_mgr *mgr);
-int __must_check
-drm_dp_mst_topology_mgr_resume(struct drm_dp_mst_topology_mgr *mgr,
-			       bool sync);
-
-ssize_t drm_dp_mst_dpcd_read(struct drm_dp_aux *aux,
-			     unsigned int offset, void *buffer, size_t size);
-ssize_t drm_dp_mst_dpcd_write(struct drm_dp_aux *aux,
-			      unsigned int offset, void *buffer, size_t size);
-
-int drm_dp_mst_connector_late_register(struct drm_connector *connector,
-				       struct drm_dp_mst_port *port);
-void drm_dp_mst_connector_early_unregister(struct drm_connector *connector,
-					   struct drm_dp_mst_port *port);
-
-struct drm_dp_mst_topology_state *drm_atomic_get_mst_topology_state(struct drm_atomic_state *state,
-								    struct drm_dp_mst_topology_mgr *mgr);
-int __must_check
-drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state,
-			      struct drm_dp_mst_topology_mgr *mgr,
-			      struct drm_dp_mst_port *port, int pbn,
-			      int pbn_div);
-int drm_dp_mst_atomic_enable_dsc(struct drm_atomic_state *state,
-				 struct drm_dp_mst_port *port,
-				 int pbn, int pbn_div,
-				 bool enable);
-int __must_check
-drm_dp_mst_add_affected_dsc_crtcs(struct drm_atomic_state *state,
-				  struct drm_dp_mst_topology_mgr *mgr);
-int __must_check
-drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state,
-				 struct drm_dp_mst_topology_mgr *mgr,
-				 struct drm_dp_mst_port *port);
-int drm_dp_send_power_updown_phy(struct drm_dp_mst_topology_mgr *mgr,
-				 struct drm_dp_mst_port *port, bool power_up);
-int drm_dp_send_query_stream_enc_status(struct drm_dp_mst_topology_mgr *mgr,
-		struct drm_dp_mst_port *port,
-		struct drm_dp_query_stream_enc_status_ack_reply *status);
-int __must_check drm_dp_mst_atomic_check(struct drm_atomic_state *state);
-
-void drm_dp_mst_get_port_malloc(struct drm_dp_mst_port *port);
-void drm_dp_mst_put_port_malloc(struct drm_dp_mst_port *port);
-
-struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port);
-
-extern const struct drm_private_state_funcs drm_dp_mst_topology_state_funcs;
-
-/**
- * __drm_dp_mst_state_iter_get - private atomic state iterator function for
- * macro-internal use
- * @state: &struct drm_atomic_state pointer
- * @mgr: pointer to the &struct drm_dp_mst_topology_mgr iteration cursor
- * @old_state: optional pointer to the old &struct drm_dp_mst_topology_state
- * iteration cursor
- * @new_state: optional pointer to the new &struct drm_dp_mst_topology_state
- * iteration cursor
- * @i: int iteration cursor, for macro-internal use
- *
- * Used by for_each_oldnew_mst_mgr_in_state(),
- * for_each_old_mst_mgr_in_state(), and for_each_new_mst_mgr_in_state(). Don't
- * call this directly.
- *
- * Returns:
- * True if the current &struct drm_private_obj is a &struct
- * drm_dp_mst_topology_mgr, false otherwise.
- */
-static inline bool
-__drm_dp_mst_state_iter_get(struct drm_atomic_state *state,
-			    struct drm_dp_mst_topology_mgr **mgr,
-			    struct drm_dp_mst_topology_state **old_state,
-			    struct drm_dp_mst_topology_state **new_state,
-			    int i)
-{
-	struct __drm_private_objs_state *objs_state = &state->private_objs[i];
-
-	if (objs_state->ptr->funcs != &drm_dp_mst_topology_state_funcs)
-		return false;
-
-	*mgr = to_dp_mst_topology_mgr(objs_state->ptr);
-	if (old_state)
-		*old_state = to_dp_mst_topology_state(objs_state->old_state);
-	if (new_state)
-		*new_state = to_dp_mst_topology_state(objs_state->new_state);
-
-	return true;
-}
-
-/**
- * for_each_oldnew_mst_mgr_in_state - iterate over all DP MST topology
- * managers in an atomic update
- * @__state: &struct drm_atomic_state pointer
- * @mgr: &struct drm_dp_mst_topology_mgr iteration cursor
- * @old_state: &struct drm_dp_mst_topology_state iteration cursor for the old
- * state
- * @new_state: &struct drm_dp_mst_topology_state iteration cursor for the new
- * state
- * @__i: int iteration cursor, for macro-internal use
- *
- * This iterates over all DRM DP MST topology managers in an atomic update,
- * tracking both old and new state. This is useful in places where the state
- * delta needs to be considered, for example in atomic check functions.
- */
-#define for_each_oldnew_mst_mgr_in_state(__state, mgr, old_state, new_state, __i) \
-	for ((__i) = 0; (__i) < (__state)->num_private_objs; (__i)++) \
-		for_each_if(__drm_dp_mst_state_iter_get((__state), &(mgr), &(old_state), &(new_state), (__i)))
-
-/**
- * for_each_old_mst_mgr_in_state - iterate over all DP MST topology managers
- * in an atomic update
- * @__state: &struct drm_atomic_state pointer
- * @mgr: &struct drm_dp_mst_topology_mgr iteration cursor
- * @old_state: &struct drm_dp_mst_topology_state iteration cursor for the old
- * state
- * @__i: int iteration cursor, for macro-internal use
- *
- * This iterates over all DRM DP MST topology managers in an atomic update,
- * tracking only the old state. This is useful in disable functions, where we
- * need the old state the hardware is still in.
- */
-#define for_each_old_mst_mgr_in_state(__state, mgr, old_state, __i) \
-	for ((__i) = 0; (__i) < (__state)->num_private_objs; (__i)++) \
-		for_each_if(__drm_dp_mst_state_iter_get((__state), &(mgr), &(old_state), NULL, (__i)))
-
-/**
- * for_each_new_mst_mgr_in_state - iterate over all DP MST topology managers
- * in an atomic update
- * @__state: &struct drm_atomic_state pointer
- * @mgr: &struct drm_dp_mst_topology_mgr iteration cursor
- * @new_state: &struct drm_dp_mst_topology_state iteration cursor for the new
- * state
- * @__i: int iteration cursor, for macro-internal use
- *
- * This iterates over all DRM DP MST topology managers in an atomic update,
- * tracking only the new state. This is useful in enable functions, where we
- * need the new state the hardware should be in when the atomic commit
- * operation has completed.
- */
-#define for_each_new_mst_mgr_in_state(__state, mgr, new_state, __i) \
-	for ((__i) = 0; (__i) < (__state)->num_private_objs; (__i)++) \
-		for_each_if(__drm_dp_mst_state_iter_get((__state), &(mgr), NULL, &(new_state), (__i)))
-
-#endif