drivers/gpu/drm/armada/armada_plane.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/armada/armada_plane.h

Extension

.h

Size

1250 bytes

Lines

37

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• 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

• struct armada_plane_state

Annotated Snippet

struct armada_plane_state {
	struct drm_plane_state base;
	u32 src_hw;
	u32 dst_yx;
	u32 dst_hw;
	u32 addrs[2][3];
	u16 pitches[3];
	bool interlace;
};

#define to_armada_plane_state(st) \
	container_of(st, struct armada_plane_state, base)
#define armada_src_hw(state) to_armada_plane_state(state)->src_hw
#define armada_dst_yx(state) to_armada_plane_state(state)->dst_yx
#define armada_dst_hw(state) to_armada_plane_state(state)->dst_hw
#define armada_addr(state, f, p) to_armada_plane_state(state)->addrs[f][p]
#define armada_pitch(state, n) to_armada_plane_state(state)->pitches[n]

void armada_drm_plane_calc(struct drm_plane_state *state, u32 addrs[2][3],
	u16 pitches[3], bool interlaced);
void armada_drm_plane_cleanup_fb(struct drm_plane *plane,
	struct drm_plane_state *old_state);
int armada_drm_plane_atomic_check(struct drm_plane *plane,
	struct drm_atomic_commit *state);
void armada_plane_reset(struct drm_plane *plane);
struct drm_plane_state *armada_plane_duplicate_state(struct drm_plane *plane);
void armada_plane_destroy_state(struct drm_plane *plane,
				struct drm_plane_state *state);

int armada_drm_primary_plane_init(struct drm_device *drm,
	struct drm_plane *primary);

#endif

Annotation

• Detected declarations: `struct armada_plane_state`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.