drivers/accel/ivpu/ivpu_pm.h

File Facts

System

Linux kernel

Corpus path

drivers/accel/ivpu/ivpu_pm.h

Extension

.h

Size

1535 bytes

Lines

51

Domain

Driver Families

Bucket

drivers/accel

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/rwsem.h
• linux/types.h

Detected Declarations

• struct ivpu_device
• struct ivpu_pm_info

Annotated Snippet

struct ivpu_pm_info {
	struct ivpu_device *vdev;
	struct delayed_work job_timeout_work;
	struct work_struct recovery_work;
	struct rw_semaphore reset_lock;
	atomic_t reset_counter;
	atomic_t reset_pending;
	atomic_t engine_reset_counter;
	u8 dct_active_percent;
};

void ivpu_pm_init(struct ivpu_device *vdev);
void ivpu_pm_enable(struct ivpu_device *vdev);
void ivpu_pm_disable(struct ivpu_device *vdev);
void ivpu_pm_disable_recovery(struct ivpu_device *vdev);

int ivpu_pm_suspend_cb(struct device *dev);
int ivpu_pm_resume_cb(struct device *dev);
int ivpu_pm_runtime_suspend_cb(struct device *dev);
int ivpu_pm_runtime_resume_cb(struct device *dev);

void ivpu_pm_reset_prepare_cb(struct pci_dev *pdev);
void ivpu_pm_reset_done_cb(struct pci_dev *pdev);

int __must_check ivpu_rpm_get(struct ivpu_device *vdev);
void ivpu_rpm_put(struct ivpu_device *vdev);

void ivpu_pm_trigger_recovery(struct ivpu_device *vdev, const char *reason);
void ivpu_start_job_timeout_detection(struct ivpu_device *vdev);
void ivpu_stop_job_timeout_detection(struct ivpu_device *vdev);

int ivpu_pm_dct_init(struct ivpu_device *vdev);
int ivpu_pm_dct_enable(struct ivpu_device *vdev, u8 active_percent);
int ivpu_pm_dct_disable(struct ivpu_device *vdev);
void ivpu_pm_irq_dct_work_fn(struct work_struct *work);

#endif /* __IVPU_PM_H__ */

Annotation

• Immediate include surface: `linux/rwsem.h`, `linux/types.h`.
• Detected declarations: `struct ivpu_device`, `struct ivpu_pm_info`.
• Atlas domain: Driver Families / drivers/accel.
• 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.