drivers/gpu/drm/xe/xe_sriov_pf_migration.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/xe/xe_sriov_pf_migration.h

Extension

.h

Size

1076 bytes

Lines

31

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
• linux/wait.h

Detected Declarations

• struct xe_device
• struct xe_sriov_packet

Annotated Snippet

#ifndef _XE_SRIOV_PF_MIGRATION_H_
#define _XE_SRIOV_PF_MIGRATION_H_

#include <linux/types.h>
#include <linux/wait.h>

struct xe_device;
struct xe_sriov_packet;

int xe_sriov_pf_migration_init(struct xe_device *xe);
bool xe_sriov_pf_migration_supported(struct xe_device *xe);
void xe_sriov_pf_migration_disable(struct xe_device *xe, const char *fmt, ...);
int xe_sriov_pf_migration_restore_produce(struct xe_device *xe, unsigned int vfid,
					  struct xe_sriov_packet *data);
struct xe_sriov_packet *
xe_sriov_pf_migration_save_consume(struct xe_device *xe, unsigned int vfid);
ssize_t xe_sriov_pf_migration_size(struct xe_device *xe, unsigned int vfid);
wait_queue_head_t *xe_sriov_pf_migration_waitqueue(struct xe_device *xe, unsigned int vfid);

ssize_t xe_sriov_pf_migration_read(struct xe_device *xe, unsigned int vfid,
				   char __user *buf, size_t len);
ssize_t xe_sriov_pf_migration_write(struct xe_device *xe, unsigned int vfid,
				    const char __user *buf, size_t len);

#endif

Annotation

• Immediate include surface: `linux/types.h`, `linux/wait.h`.
• Detected declarations: `struct xe_device`, `struct xe_sriov_packet`.
• 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.