drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h

Extension

.h

Size

1812 bytes

Lines

59

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h
• intel_guc.h

Detected Declarations

• struct drm_printer
• struct intel_engine_cs
• function intel_guc_submission_is_supported
• function intel_guc_submission_is_wanted
• function intel_guc_submission_is_used

Annotated Snippet

#ifndef _INTEL_GUC_SUBMISSION_H_
#define _INTEL_GUC_SUBMISSION_H_

#include <linux/types.h>

#include "intel_guc.h"

struct drm_printer;
struct intel_engine_cs;

void intel_guc_submission_init_early(struct intel_guc *guc);
int intel_guc_submission_init(struct intel_guc *guc);
int intel_guc_submission_enable(struct intel_guc *guc);
void intel_guc_submission_disable(struct intel_guc *guc);
void intel_guc_submission_fini(struct intel_guc *guc);
int intel_guc_preempt_work_create(struct intel_guc *guc);
void intel_guc_preempt_work_destroy(struct intel_guc *guc);
int intel_guc_submission_setup(struct intel_engine_cs *engine);
void intel_guc_submission_print_info(struct intel_guc *guc,
				     struct drm_printer *p);
void intel_guc_submission_print_context_info(struct intel_guc *guc,
					     struct drm_printer *p);
void intel_guc_dump_active_requests(struct intel_engine_cs *engine,
				    struct i915_request *hung_rq,
				    struct drm_printer *m);
void intel_guc_busyness_park(struct intel_gt *gt);
void intel_guc_busyness_unpark(struct intel_gt *gt);

bool intel_guc_virtual_engine_has_heartbeat(const struct intel_engine_cs *ve);

int intel_guc_wait_for_pending_msg(struct intel_guc *guc,
				   atomic_t *wait_var,
				   bool interruptible,
				   long timeout);

void intel_guc_submission_flush_work(struct intel_guc *guc);

static inline bool intel_guc_submission_is_supported(struct intel_guc *guc)
{
	return guc->submission_supported;
}

static inline bool intel_guc_submission_is_wanted(struct intel_guc *guc)
{
	return guc->submission_selected;
}

static inline bool intel_guc_submission_is_used(struct intel_guc *guc)
{
	return intel_guc_is_used(guc) && intel_guc_submission_is_wanted(guc);
}

#endif

Annotation

• Immediate include surface: `linux/types.h`, `intel_guc.h`.
• Detected declarations: `struct drm_printer`, `struct intel_engine_cs`, `function intel_guc_submission_is_supported`, `function intel_guc_submission_is_wanted`, `function intel_guc_submission_is_used`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.