drivers/accel/amdxdna/amdxdna_cbuf.h

File Facts

System

Linux kernel

Corpus path

drivers/accel/amdxdna/amdxdna_cbuf.h

Extension

.h

Size

606 bytes

Lines

19

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

• amdxdna_pci_drv.h
• drm/drm_device.h
• linux/dma-buf.h

Detected Declarations

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

Annotated Snippet

#ifndef _AMDXDNA_CBUF_H_
#define _AMDXDNA_CBUF_H_

#include "amdxdna_pci_drv.h"
#include <drm/drm_device.h>
#include <linux/dma-buf.h>

bool amdxdna_use_carveout(struct amdxdna_dev *xdna);
int amdxdna_carveout_init(struct amdxdna_dev *xdna, u64 carveout_addr, u64 carveout_size);
void amdxdna_carveout_fini(struct amdxdna_dev *xdna);
void amdxdna_get_carveout_conf(struct amdxdna_dev *xdna, u64 *addr, u64 *size);
struct dma_buf *amdxdna_get_cbuf(struct drm_device *dev, size_t size, u64 alignment);

#endif

Annotation

• Immediate include surface: `amdxdna_pci_drv.h`, `drm/drm_device.h`, `linux/dma-buf.h`.
• 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.