drivers/gpu/drm/panfrost/panfrost_perfcnt.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/panfrost/panfrost_perfcnt.h

Extension

.h

Size

692 bytes

Lines

19

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

• panfrost_device.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __PANFROST_PERFCNT_H__
#define __PANFROST_PERFCNT_H__

#include "panfrost_device.h"

void panfrost_perfcnt_sample_done(struct panfrost_device *pfdev);
void panfrost_perfcnt_clean_cache_done(struct panfrost_device *pfdev);
int panfrost_perfcnt_init(struct panfrost_device *pfdev);
void panfrost_perfcnt_fini(struct panfrost_device *pfdev);
void panfrost_perfcnt_close(struct drm_file *file_priv);
int panfrost_ioctl_perfcnt_enable(struct drm_device *dev, void *data,
				  struct drm_file *file_priv);
int panfrost_ioctl_perfcnt_dump(struct drm_device *dev, void *data,
				struct drm_file *file_priv);

#endif

Annotation

• Immediate include surface: `panfrost_device.h`.
• 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.