drivers/gpu/drm/exynos/exynos_drm_g2d.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/exynos/exynos_drm_g2d.h

Extension

.h

Size

1268 bytes

Lines

45

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

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

Detected Declarations

• function exynos_g2d_get_ver_ioctl
• function exynos_g2d_set_cmdlist_ioctl
• function exynos_g2d_exec_ioctl
• function g2d_open
• function g2d_close

Annotated Snippet

#ifdef CONFIG_DRM_EXYNOS_G2D
extern int exynos_g2d_get_ver_ioctl(struct drm_device *dev, void *data,
				    struct drm_file *file_priv);
extern int exynos_g2d_set_cmdlist_ioctl(struct drm_device *dev, void *data,
					struct drm_file *file_priv);
extern int exynos_g2d_exec_ioctl(struct drm_device *dev, void *data,
				 struct drm_file *file_priv);

extern int g2d_open(struct drm_device *drm_dev, struct drm_file *file);
extern void g2d_close(struct drm_device *drm_dev, struct drm_file *file);
#else
static inline int exynos_g2d_get_ver_ioctl(struct drm_device *dev, void *data,
					   struct drm_file *file_priv)
{
	return -ENODEV;
}

static inline int exynos_g2d_set_cmdlist_ioctl(struct drm_device *dev,
					       void *data,
					       struct drm_file *file_priv)
{
	return -ENODEV;
}

static inline int exynos_g2d_exec_ioctl(struct drm_device *dev, void *data,
					struct drm_file *file_priv)
{
	return -ENODEV;
}

static inline int g2d_open(struct drm_device *drm_dev, struct drm_file *file)
{
	return 0;
}

static inline void g2d_close(struct drm_device *drm_dev, struct drm_file *file)
{ }
#endif

Annotation

• Detected declarations: `function exynos_g2d_get_ver_ioctl`, `function exynos_g2d_set_cmdlist_ioctl`, `function exynos_g2d_exec_ioctl`, `function g2d_open`, `function g2d_close`.
• 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.