drivers/gpu/drm/i915/display/i9xx_plane.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/i915/display/i9xx_plane.h

Extension

.h

Size

1809 bytes

Lines

65

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

• linux/types.h

Detected Declarations

• struct drm_format_info
• struct drm_framebuffer
• struct intel_crtc
• struct intel_display
• struct intel_initial_plane_config
• struct intel_plane
• struct intel_plane_state
• enum pipe
• function i965_plane_max_stride
• function i9xx_check_plane_surface
• function intel_primary_plane_create
• function i9xx_get_initial_plane_config

Annotated Snippet

#ifndef _I9XX_PLANE_H_
#define _I9XX_PLANE_H_

#include <linux/types.h>

enum pipe;
struct drm_format_info;
struct drm_framebuffer;
struct intel_crtc;
struct intel_display;
struct intel_initial_plane_config;
struct intel_plane;
struct intel_plane_state;

#ifdef I915
unsigned int i965_plane_max_stride(struct intel_plane *plane,
				   const struct drm_format_info *info,
				   u64 modifier, unsigned int rotation);
unsigned int vlv_plane_min_alignment(struct intel_plane *plane,
				     const struct drm_framebuffer *fb,
				     int colot_plane);
int i9xx_check_plane_surface(struct intel_plane_state *plane_state);
u32 i965_plane_surf_offset(const struct intel_plane_state *plane_state);

struct intel_plane *
intel_primary_plane_create(struct intel_display *display, enum pipe pipe);

void i9xx_get_initial_plane_config(struct intel_crtc *crtc,
				   struct intel_initial_plane_config *plane_config);
bool i9xx_fixup_initial_plane_config(struct intel_crtc *crtc,
				     const struct intel_initial_plane_config *plane_config);
#else
static inline unsigned int i965_plane_max_stride(struct intel_plane *plane,
						 u32 pixel_format, u64 modifier,
						 unsigned int rotation)
{
	return 0;
}
static inline int i9xx_check_plane_surface(struct intel_plane_state *plane_state)
{
	return 0;
}
static inline struct intel_plane *
intel_primary_plane_create(struct intel_display *display, int pipe)
{
	return NULL;
}
static inline void i9xx_get_initial_plane_config(struct intel_crtc *crtc,
						 struct intel_initial_plane_config *plane_config)
{
}
static inline bool i9xx_fixup_initial_plane_config(struct intel_crtc *crtc,
						   const struct intel_initial_plane_config *plane_config)
{
	return false;
}
#endif

#endif

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct drm_format_info`, `struct drm_framebuffer`, `struct intel_crtc`, `struct intel_display`, `struct intel_initial_plane_config`, `struct intel_plane`, `struct intel_plane_state`, `enum pipe`, `function i965_plane_max_stride`, `function i9xx_check_plane_surface`.
• 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.