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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

1864 bytes

Lines

49

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 intel_atomic_state
• struct intel_crtc
• struct intel_crtc_state
• struct intel_display
• struct intel_display
• struct intel_encoder
• struct intel_link_bw_limits
• enum pipe

Annotated Snippet

#ifndef _INTEL_FDI_H_
#define _INTEL_FDI_H_

#include <linux/types.h>

enum pipe;
struct intel_atomic_state;
struct intel_crtc;
struct intel_crtc_state;
struct intel_display;
struct intel_display;
struct intel_encoder;
struct intel_link_bw_limits;

int intel_fdi_add_affected_crtcs(struct intel_atomic_state *state);
int intel_fdi_link_freq(struct intel_display *display,
			const struct intel_crtc_state *pipe_config);
int ilk_fdi_compute_config(struct intel_crtc *intel_crtc,
			   struct intel_crtc_state *pipe_config);
int intel_fdi_atomic_check_link(struct intel_atomic_state *state,
				struct intel_link_bw_limits *limits);
void intel_fdi_normal_train(struct intel_crtc *crtc);
void ilk_fdi_disable(struct intel_crtc *crtc);
void ilk_fdi_pll_disable(struct intel_crtc *intel_crtc);
void ilk_fdi_pll_enable(const struct intel_crtc_state *crtc_state);
void intel_fdi_init_hook(struct intel_display *display);
void hsw_fdi_link_train(struct intel_encoder *encoder,
			const struct intel_crtc_state *crtc_state);
void hsw_fdi_disable(struct intel_encoder *encoder);
void intel_fdi_pll_freq_update(struct intel_display *display);

void intel_fdi_link_train(struct intel_crtc *crtc,
			  const struct intel_crtc_state *crtc_state);

void assert_fdi_tx_enabled(struct intel_display *display, enum pipe pipe);
void assert_fdi_tx_disabled(struct intel_display *display, enum pipe pipe);
void assert_fdi_rx_enabled(struct intel_display *display, enum pipe pipe);
void assert_fdi_rx_disabled(struct intel_display *display, enum pipe pipe);
void assert_fdi_tx_pll_enabled(struct intel_display *display, enum pipe pipe);
void assert_fdi_rx_pll_enabled(struct intel_display *display, enum pipe pipe);
void assert_fdi_rx_pll_disabled(struct intel_display *display, enum pipe pipe);

#endif

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct intel_atomic_state`, `struct intel_crtc`, `struct intel_crtc_state`, `struct intel_display`, `struct intel_display`, `struct intel_encoder`, `struct intel_link_bw_limits`, `enum pipe`.
• 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.