drivers/gpu/drm/nouveau/nouveau_gem.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/nouveau/nouveau_gem.h

Extension

.h

Size

1674 bytes

Lines

43

Domain

Driver Families

Bucket

drivers/gpu

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

• nouveau_drv.h
• nouveau_bo.h

Detected Declarations

• function nouveau_gem_object

Annotated Snippet

#ifndef __NOUVEAU_GEM_H__
#define __NOUVEAU_GEM_H__

#include "nouveau_drv.h"
#include "nouveau_bo.h"

extern const struct drm_gem_object_funcs nouveau_gem_object_funcs;

static inline struct nouveau_bo *
nouveau_gem_object(struct drm_gem_object *gem)
{
	return gem ? container_of(gem, struct nouveau_bo, bo.base) : NULL;
}

/* nouveau_gem.c */
extern int nouveau_gem_new(struct nouveau_cli *, u64 size, int align,
			   uint32_t domain, uint32_t tile_mode,
			   uint32_t tile_flags, struct nouveau_bo **);
extern void nouveau_gem_object_del(struct drm_gem_object *);
extern int nouveau_gem_object_open(struct drm_gem_object *, struct drm_file *);
extern void nouveau_gem_object_close(struct drm_gem_object *,
				     struct drm_file *);
extern int nouveau_gem_ioctl_new(struct drm_device *, void *,
				 struct drm_file *);
extern int nouveau_gem_ioctl_pushbuf(struct drm_device *, void *,
				     struct drm_file *);
extern int nouveau_gem_ioctl_cpu_prep(struct drm_device *, void *,
				      struct drm_file *);
extern int nouveau_gem_ioctl_cpu_fini(struct drm_device *, void *,
				      struct drm_file *);
extern int nouveau_gem_ioctl_info(struct drm_device *, void *,
				  struct drm_file *);

extern int nouveau_gem_prime_pin(struct drm_gem_object *);
extern void nouveau_gem_prime_unpin(struct drm_gem_object *);
extern struct sg_table *nouveau_gem_prime_get_sg_table(struct drm_gem_object *);
extern struct drm_gem_object *nouveau_gem_prime_import_sg_table(
	struct drm_device *, struct dma_buf_attachment *, struct sg_table *);
struct dma_buf *nouveau_gem_prime_export(struct drm_gem_object *gobj,
					 int flags);
#endif

Annotation

• Immediate include surface: `nouveau_drv.h`, `nouveau_bo.h`.
• Detected declarations: `function nouveau_gem_object`.
• Atlas domain: Driver Families / drivers/gpu.
• 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.