drivers/gpu/drm/xe/xe_reg_sr.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/xe/xe_reg_sr.h

Extension

.h

Size

900 bytes

Lines

36

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

• No C-style include directives detected by the generator.

Detected Declarations

• struct xe_device
• struct xe_gt
• struct xe_hw_engine
• struct xe_reg_sr
• struct xe_reg_sr_entry
• struct drm_printer

Annotated Snippet

#ifndef _XE_REG_SR_H_
#define _XE_REG_SR_H_

/*
 * Reg save/restore bookkeeping
 */

struct xe_device;
struct xe_gt;
struct xe_hw_engine;
struct xe_reg_sr;
struct xe_reg_sr_entry;
struct drm_printer;

int xe_reg_sr_init(struct xe_reg_sr *sr, const char *name, struct xe_device *xe);
void xe_reg_sr_dump(struct xe_reg_sr *sr, struct drm_printer *p);
void xe_reg_sr_readback_check(struct xe_reg_sr *sr,
			      struct xe_gt *gt,
			      struct drm_printer *p);
void xe_reg_sr_lrc_check(struct xe_reg_sr *sr,
			 struct xe_gt *gt,
			 struct xe_hw_engine *hwe,
			 struct drm_printer *p);

int xe_reg_sr_add(struct xe_reg_sr *sr, const struct xe_reg_sr_entry *e,
		  struct xe_gt *gt);
void xe_reg_sr_apply_mmio(struct xe_reg_sr *sr, struct xe_gt *gt);
void xe_reg_sr_apply_whitelist(struct xe_hw_engine *hwe);

#endif

Annotation

• Detected declarations: `struct xe_device`, `struct xe_gt`, `struct xe_hw_engine`, `struct xe_reg_sr`, `struct xe_reg_sr_entry`, `struct drm_printer`.
• 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.