drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h

Extension

.h

Size

2327 bytes

Lines

79

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

• drm/drm_crtc.h
• dpu_kms.h
• dpu_hw_mdss.h
• dpu_hw_sspp.h

Detected Declarations

• struct dpu_plane_state
• function dpu_plane_danger_signal_ctrl

Annotated Snippet

struct dpu_plane_state {
	struct drm_plane_state base;
	struct dpu_sw_pipe pipe[PIPES_PER_PLANE];
	struct dpu_sw_pipe_cfg pipe_cfg[PIPES_PER_PLANE];
	enum dpu_stage stage;
	bool needs_qos_remap;
	bool pending;

	u64 plane_fetch_bw;
	u64 plane_clk;

	bool needs_dirtyfb;

	struct dpu_hw_fmt_layout layout;
};

#define to_dpu_plane_state(x) \
	container_of(x, struct dpu_plane_state, base)

void dpu_plane_flush(struct drm_plane *plane);

void dpu_plane_set_error(struct drm_plane *plane, bool error);

struct drm_plane *dpu_plane_init(struct drm_device *dev,
		uint32_t pipe, enum drm_plane_type type,
		unsigned long possible_crtcs);

struct drm_plane *dpu_plane_init_virtual(struct drm_device *dev,
					 enum drm_plane_type type,
					 unsigned long possible_crtcs);

int dpu_plane_color_fill(struct drm_plane *plane,
		uint32_t color, uint32_t alpha);

#ifdef CONFIG_DEBUG_FS
void dpu_plane_danger_signal_ctrl(struct drm_plane *plane, bool enable);
#else
static inline void dpu_plane_danger_signal_ctrl(struct drm_plane *plane, bool enable) {}
#endif

int dpu_assign_plane_resources(struct dpu_global_state *global_state,
			       struct drm_atomic_commit *state,
			       struct drm_crtc *crtc,
			       struct drm_plane_state **states,
			       unsigned int num_planes);

#endif /* _DPU_PLANE_H_ */

Annotation

• Immediate include surface: `drm/drm_crtc.h`, `dpu_kms.h`, `dpu_hw_mdss.h`, `dpu_hw_sspp.h`.
• Detected declarations: `struct dpu_plane_state`, `function dpu_plane_danger_signal_ctrl`.
• 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.