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

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/i915/display/intel_vrr.h

File Facts

System: Linux kernel
Corpus path: drivers/gpu/drm/i915/display/intel_vrr.h
Extension: .h
Size: 2823 bytes
Lines: 58
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_connector
struct intel_crtc
struct intel_crtc_state
struct intel_dsb
struct intel_display

Annotated Snippet

#ifndef __INTEL_VRR_H__
#define __INTEL_VRR_H__

#include <linux/types.h>

struct drm_connector_state;
struct intel_atomic_state;
struct intel_connector;
struct intel_crtc;
struct intel_crtc_state;
struct intel_dsb;
struct intel_display;

bool intel_vrr_is_capable(struct intel_connector *connector);
bool intel_vrr_is_in_range(struct intel_connector *connector, int vrefresh);
bool intel_vrr_possible(const struct intel_crtc_state *crtc_state);
void intel_vrr_check_modeset(struct intel_atomic_state *state);
void intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
			      struct drm_connector_state *conn_state);
void intel_vrr_compute_guardband(struct intel_crtc_state *crtc_state);
void intel_vrr_set_transcoder_timings(const struct intel_crtc_state *crtc_state);
void intel_vrr_enable(const struct intel_crtc_state *crtc_state);
void intel_vrr_send_push(struct intel_dsb *dsb,
			 const struct intel_crtc_state *crtc_state);
void intel_vrr_check_push_sent(struct intel_dsb *dsb,
			       const struct intel_crtc_state *crtc_state);
void intel_vrr_dcb_increment_flip_count(struct intel_crtc_state *crtc_state,
					struct intel_crtc *crtc);
bool intel_vrr_is_push_sent(const struct intel_crtc_state *crtc_state);
void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state);
void intel_vrr_psr_frame_change_enable(const struct intel_crtc_state *crtc_state);
void intel_vrr_get_config(struct intel_crtc_state *crtc_state);
int intel_vrr_vmax_vtotal(const struct intel_crtc_state *crtc_state);
int intel_vrr_vmin_vtotal(const struct intel_crtc_state *crtc_state);
int intel_vrr_vmax_vblank_start(const struct intel_crtc_state *crtc_state);
int intel_vrr_vmin_vblank_start(const struct intel_crtc_state *crtc_state);
bool intel_vrr_is_fixed_rr(const struct intel_crtc_state *crtc_state);
void intel_vrr_transcoder_enable(const struct intel_crtc_state *crtc_state);
void intel_vrr_transcoder_disable(const struct intel_crtc_state *crtc_state);
void intel_vrr_set_fixed_rr_timings(const struct intel_crtc_state *crtc_state);
void intel_vrr_dcb_reset(const struct intel_crtc_state *old_crtc_state,
			 struct intel_crtc *crtc);
bool intel_vrr_always_use_vrr_tg(struct intel_display *display);
int intel_vrr_safe_window_start(const struct intel_crtc_state *crtc_state);
int intel_vrr_vmin_safe_window_end(const struct intel_crtc_state *crtc_state);

int intel_vrr_dcb_vmin_vblank_start_next(const struct intel_crtc_state *crtc_state);
int intel_vrr_dcb_vmax_vblank_start_next(const struct intel_crtc_state *crtc_state);
int intel_vrr_dcb_vmin_vblank_start_final(const struct intel_crtc_state *crtc_state);
int intel_vrr_dcb_vmax_vblank_start_final(const struct intel_crtc_state *crtc_state);

#endif /* __INTEL_VRR_H__ */

Annotation

Immediate include surface: `linux/types.h`.
Detected declarations: `struct drm_connector_state`, `struct intel_atomic_state`, `struct intel_connector`, `struct intel_crtc`, `struct intel_crtc_state`, `struct intel_dsb`, `struct intel_display`.
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.