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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

1092 bytes

Lines

40

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/slab.h
• intel_workarounds_types.h

Detected Declarations

• struct drm_i915_private
• struct i915_request
• struct intel_engine_cs
• struct intel_gt
• function intel_wa_list_free

Annotated Snippet

#ifndef _INTEL_WORKAROUNDS_H_
#define _INTEL_WORKAROUNDS_H_

#include <linux/slab.h>

#include "intel_workarounds_types.h"

struct drm_i915_private;
struct i915_request;
struct intel_engine_cs;
struct intel_gt;

static inline void intel_wa_list_free(struct i915_wa_list *wal)
{
	kfree(wal->list);
	memset(wal, 0, sizeof(*wal));
}

void intel_engine_init_ctx_wa(struct intel_engine_cs *engine);
int intel_engine_emit_ctx_wa(struct i915_request *rq);

void intel_gt_init_workarounds(struct intel_gt *gt);
void intel_gt_apply_workarounds(struct intel_gt *gt);
bool intel_gt_verify_workarounds(struct intel_gt *gt, const char *from);

void intel_engine_init_whitelist(struct intel_engine_cs *engine);
void intel_engine_apply_whitelist(struct intel_engine_cs *engine);

void intel_engine_init_workarounds(struct intel_engine_cs *engine);
void intel_engine_apply_workarounds(struct intel_engine_cs *engine);
int intel_engine_verify_workarounds(struct intel_engine_cs *engine,
				    const char *from);

#endif

Annotation

• Immediate include surface: `linux/slab.h`, `intel_workarounds_types.h`.
• Detected declarations: `struct drm_i915_private`, `struct i915_request`, `struct intel_engine_cs`, `struct intel_gt`, `function intel_wa_list_free`.
• 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.