drivers/gpu/drm/i915/display/intel_dp_mst.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/display/intel_dp_mst.h

Extension

.h

Size

1481 bytes

Lines

40

Domain

Driver Families

Bucket

drivers/gpu

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct drm_connector_state
• struct intel_atomic_state
• struct intel_crtc
• struct intel_crtc_state
• struct intel_digital_port
• struct intel_dp
• struct intel_link_bw_limits

Annotated Snippet

#ifndef __INTEL_DP_MST_H__
#define __INTEL_DP_MST_H__

#include <linux/types.h>

struct drm_connector_state;
struct intel_atomic_state;
struct intel_crtc;
struct intel_crtc_state;
struct intel_digital_port;
struct intel_dp;
struct intel_link_bw_limits;

int intel_dp_mst_encoder_init(struct intel_digital_port *dig_port, int conn_id);
void intel_dp_mst_encoder_cleanup(struct intel_digital_port *dig_port);
int intel_dp_mst_active_streams(struct intel_dp *intel_dp);
bool intel_dp_mst_is_master_trans(const struct intel_crtc_state *crtc_state);
bool intel_dp_mst_is_slave_trans(const struct intel_crtc_state *crtc_state);
bool intel_dp_mst_source_support(struct intel_dp *intel_dp);
int intel_dp_mst_add_topology_state_for_crtc(struct intel_atomic_state *state,
					     struct intel_crtc *crtc);
int intel_dp_mst_atomic_check_link(struct intel_atomic_state *state,
				   struct intel_link_bw_limits *limits);
bool intel_dp_mst_crtc_needs_modeset(struct intel_atomic_state *state,
				     struct intel_crtc *crtc);
void intel_dp_mst_prepare_probe(struct intel_dp *intel_dp);
bool intel_dp_mst_verify_dpcd_state(struct intel_dp *intel_dp);

int intel_dp_mtp_tu_compute_config(struct intel_dp *intel_dp,
				   struct intel_crtc_state *crtc_state,
				   struct drm_connector_state *conn_state,
				   int min_bpp_x16, int max_bpp_x16, int bpp_step_x16, bool dsc);

#endif /* __INTEL_DP_MST_H__ */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct drm_connector_state`, `struct intel_atomic_state`, `struct intel_crtc`, `struct intel_crtc_state`, `struct intel_digital_port`, `struct intel_dp`, `struct intel_link_bw_limits`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.