drivers/gpu/drm/i915/gt/intel_migrate.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/gt/intel_migrate.h

Extension

.h

Size

1723 bytes

Lines

66

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
• intel_migrate_types.h

Detected Declarations

• struct dma_fence
• struct i915_deps
• struct i915_request
• struct i915_gem_ww_ctx
• struct intel_gt
• struct scatterlist

Annotated Snippet

#ifndef __INTEL_MIGRATE__
#define __INTEL_MIGRATE__

#include <linux/types.h>

#include "intel_migrate_types.h"

struct dma_fence;
struct i915_deps;
struct i915_request;
struct i915_gem_ww_ctx;
struct intel_gt;
struct scatterlist;

int intel_migrate_init(struct intel_migrate *m, struct intel_gt *gt);

struct intel_context *intel_migrate_create_context(struct intel_migrate *m);

int intel_migrate_copy(struct intel_migrate *m,
		       struct i915_gem_ww_ctx *ww,
		       const struct i915_deps *deps,
		       struct scatterlist *src,
		       unsigned int src_pat_index,
		       bool src_is_lmem,
		       struct scatterlist *dst,
		       unsigned int dst_pat_index,
		       bool dst_is_lmem,
		       struct i915_request **out);

int intel_context_migrate_copy(struct intel_context *ce,
			       const struct i915_deps *deps,
			       struct scatterlist *src,
			       unsigned int src_pat_index,
			       bool src_is_lmem,
			       struct scatterlist *dst,
			       unsigned int dst_pat_index,
			       bool dst_is_lmem,
			       struct i915_request **out);

int
intel_migrate_clear(struct intel_migrate *m,
		    struct i915_gem_ww_ctx *ww,
		    const struct i915_deps *deps,
		    struct scatterlist *sg,
		    unsigned int pat_index,
		    bool is_lmem,
		    u32 value,
		    struct i915_request **out);
int
intel_context_migrate_clear(struct intel_context *ce,
			    const struct i915_deps *deps,
			    struct scatterlist *sg,
			    unsigned int pat_index,
			    bool is_lmem,
			    u32 value,
			    struct i915_request **out);

void intel_migrate_fini(struct intel_migrate *m);

#endif /* __INTEL_MIGRATE__ */

Annotation

• Immediate include surface: `linux/types.h`, `intel_migrate_types.h`.
• Detected declarations: `struct dma_fence`, `struct i915_deps`, `struct i915_request`, `struct i915_gem_ww_ctx`, `struct intel_gt`, `struct scatterlist`.
• 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.