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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

1849 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h
• drm/intel/vlv_iosf_sb_regs.h

Detected Declarations

• struct intel_display
• enum dpio_phy

Annotated Snippet

#ifndef _VLV_SIDEBAND_H_
#define _VLV_SIDEBAND_H_

#include <linux/types.h>

#include <drm/intel/vlv_iosf_sb_regs.h>

enum dpio_phy;
struct intel_display;

void vlv_bunit_get(struct intel_display *display);
u32 vlv_bunit_read(struct intel_display *display, u32 reg);
void vlv_bunit_write(struct intel_display *display, u32 reg, u32 val);
void vlv_bunit_put(struct intel_display *display);

void vlv_cck_get(struct intel_display *display);
u32 vlv_cck_read(struct intel_display *display, u32 reg);
void vlv_cck_write(struct intel_display *display, u32 reg, u32 val);
void vlv_cck_put(struct intel_display *display);

void vlv_ccu_get(struct intel_display *display);
u32 vlv_ccu_read(struct intel_display *display, u32 reg);
void vlv_ccu_write(struct intel_display *display, u32 reg, u32 val);
void vlv_ccu_put(struct intel_display *display);

void vlv_dpio_get(struct intel_display *display);
u32 vlv_dpio_read(struct intel_display *display, enum dpio_phy phy, int reg);
void vlv_dpio_write(struct intel_display *display, enum dpio_phy phy, int reg, u32 val);
void vlv_dpio_put(struct intel_display *display);

void vlv_flisdsi_get(struct intel_display *display);
u32 vlv_flisdsi_read(struct intel_display *display, u32 reg);
void vlv_flisdsi_write(struct intel_display *display, u32 reg, u32 val);
void vlv_flisdsi_put(struct intel_display *display);

void vlv_nc_get(struct intel_display *display);
u32 vlv_nc_read(struct intel_display *display, u8 addr);
void vlv_nc_put(struct intel_display *display);

void vlv_punit_get(struct intel_display *display);
u32 vlv_punit_read(struct intel_display *display, u32 addr);
int vlv_punit_write(struct intel_display *display, u32 addr, u32 val);
void vlv_punit_put(struct intel_display *display);

#endif /* _VLV_SIDEBAND_H_ */

Annotation

• Immediate include surface: `linux/types.h`, `drm/intel/vlv_iosf_sb_regs.h`.
• Detected declarations: `struct intel_display`, `enum dpio_phy`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source implementation candidate.

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.