drivers/accel/ivpu/ivpu_mmu.h

File Facts

System

Linux kernel

Corpus path

drivers/accel/ivpu/ivpu_mmu.h

Extension

.h

Size

1297 bytes

Lines

54

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct ivpu_device
• struct ivpu_mmu_cdtab
• struct ivpu_mmu_strtab
• struct ivpu_mmu_queue
• struct ivpu_mmu_info

Annotated Snippet

struct ivpu_mmu_cdtab {
	void *base;
	dma_addr_t dma;
};

struct ivpu_mmu_strtab {
	void *base;
	dma_addr_t dma;
	u64 dma_q;
	u32 base_cfg;
};

struct ivpu_mmu_queue {
	void *base;
	dma_addr_t dma;
	u64 dma_q;
	u32 prod;
	u32 cons;
};

struct ivpu_mmu_info {
	struct mutex lock; /* Protects cdtab, strtab, cmdq, on */
	struct ivpu_mmu_cdtab cdtab;
	struct ivpu_mmu_strtab strtab;
	struct ivpu_mmu_queue cmdq;
	struct ivpu_mmu_queue evtq;
	bool on;
};

int ivpu_mmu_init(struct ivpu_device *vdev);
void ivpu_mmu_disable(struct ivpu_device *vdev);
int ivpu_mmu_enable(struct ivpu_device *vdev);
int ivpu_mmu_cd_set(struct ivpu_device *vdev, int ssid, struct ivpu_mmu_pgtable *pgtable);
void ivpu_mmu_cd_clear(struct ivpu_device *vdev, int ssid);
int ivpu_mmu_invalidate_tlb(struct ivpu_device *vdev, u16 ssid);

void ivpu_mmu_irq_evtq_handler(struct ivpu_device *vdev);
void ivpu_mmu_irq_gerr_handler(struct ivpu_device *vdev);
void ivpu_mmu_evtq_dump(struct ivpu_device *vdev);
void ivpu_mmu_discard_events(struct ivpu_device *vdev);
int ivpu_mmu_disable_ssid_events(struct ivpu_device *vdev, u32 ssid);

#endif /* __IVPU_MMU_H__ */

Annotation

• Detected declarations: `struct ivpu_device`, `struct ivpu_mmu_cdtab`, `struct ivpu_mmu_strtab`, `struct ivpu_mmu_queue`, `struct ivpu_mmu_info`.
• Atlas domain: Driver Families / drivers/accel.
• 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.