include/linux/platform_data/amd_xdma.h

File Facts

System

Linux kernel

Corpus path

include/linux/platform_data/amd_xdma.h

Extension

.h

Size

781 bytes

Lines

35

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/dmaengine.h

Detected Declarations

• struct xdma_chan_info
• struct dma_slave_map
• struct xdma_platdata

Annotated Snippet

struct xdma_chan_info {
	enum dma_transfer_direction dir;
};

#define XDMA_FILTER_PARAM(chan_info)	((void *)(chan_info))

struct dma_slave_map;

/**
 * struct xdma_platdata - platform specific data for XDMA engine
 * @max_dma_channels: Maximum dma channels in each direction
 */
struct xdma_platdata {
	u32 max_dma_channels;
	u32 device_map_cnt;
	struct dma_slave_map *device_map;
};

#endif /* _PLATDATA_AMD_XDMA_H */

Annotation

• Immediate include surface: `linux/dmaengine.h`.
• Detected declarations: `struct xdma_chan_info`, `struct dma_slave_map`, `struct xdma_platdata`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.