drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.h

File Facts

System

Linux kernel

Corpus path

drivers/media/platform/mediatek/mdp3/mtk-mdp3-vpu.h

Extension

.h

Size

1463 bytes

Lines

64

Domain

Driver Families

Bucket

drivers/media

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/platform_device.h
• mtk-img-ipi.h

Detected Declarations

• struct mdp_ipi_init_msg
• struct mdp_ipi_deinit_msg
• struct mdp_vpu_dev
• enum mdp_ipi_result

Annotated Snippet

struct mdp_ipi_init_msg {
	u32	status;
	u64	drv_data;
	u32	work_addr;	/* [in] working buffer address */
	u32	work_size;	/* [in] working buffer size */
} __packed;

struct mdp_ipi_deinit_msg {
	u32	status;
	u64	drv_data;
	u32	work_addr;
} __packed;

struct mdp_vpu_dev {
	/* synchronization protect for accessing vpu working buffer info */
	struct mutex		*lock;
	struct mtk_scp		*scp;
	struct completion	ipi_acked;
	void			*param;
	dma_addr_t		param_addr;
	size_t			param_size;
	void			*work;
	dma_addr_t		work_addr;
	size_t			work_size;
	void			*config;
	dma_addr_t		config_addr;
	size_t			config_size;
	u32			status;
};

void mdp_vpu_shared_mem_free(struct mdp_vpu_dev *vpu);
int mdp_vpu_dev_init(struct mdp_vpu_dev *vpu, struct mtk_scp *scp,
		     struct mutex *lock /* for sync */);
int mdp_vpu_dev_deinit(struct mdp_vpu_dev *vpu);
int mdp_vpu_process(struct mdp_vpu_dev *vpu, struct img_ipi_frameparam *param);

#endif  /* __MTK_MDP3_VPU_H__ */

Annotation

• Immediate include surface: `linux/platform_device.h`, `mtk-img-ipi.h`.
• Detected declarations: `struct mdp_ipi_init_msg`, `struct mdp_ipi_deinit_msg`, `struct mdp_vpu_dev`, `enum mdp_ipi_result`.
• Atlas domain: Driver Families / drivers/media.
• 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.