drivers/gpu/drm/imx/ipuv3/ipuv3-plane.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/imx/ipuv3/ipuv3-plane.h

Extension

.h

Size

1287 bytes

Lines

51

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

Detected Declarations

• struct drm_plane
• struct drm_device
• struct ipu_soc
• struct drm_crtc
• struct drm_framebuffer
• struct ipuv3_channel
• struct dmfc_channel
• struct ipu_dp
• struct ipu_plane

Annotated Snippet

struct ipu_plane {
	struct drm_plane	base;

	struct ipu_soc		*ipu;
	struct ipuv3_channel	*ipu_ch;
	struct ipuv3_channel	*alpha_ch;
	struct dmfc_channel	*dmfc;
	struct ipu_dp		*dp;

	int			dma;
	int			dp_flow;

	bool			disabling;
};

struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
				 int dma, int dp, unsigned int possible_crtcs,
				 enum drm_plane_type type);

/* Init IDMAC, DMFC, DP */
int ipu_plane_mode_set(struct ipu_plane *plane, struct drm_crtc *crtc,
		       struct drm_display_mode *mode,
		       struct drm_framebuffer *fb, int crtc_x, int crtc_y,
		       unsigned int crtc_w, unsigned int crtc_h,
		       uint32_t src_x, uint32_t src_y, uint32_t src_w,
		       uint32_t src_h, bool interlaced);

int ipu_plane_irq(struct ipu_plane *plane);

void ipu_plane_disable(struct ipu_plane *ipu_plane, bool disable_dp_channel);
void ipu_plane_disable_deferred(struct drm_plane *plane);
bool ipu_plane_atomic_update_pending(struct drm_plane *plane);

#endif

Annotation

• Immediate include surface: `drm/drm_crtc.h`.
• Detected declarations: `struct drm_plane`, `struct drm_device`, `struct ipu_soc`, `struct drm_crtc`, `struct drm_framebuffer`, `struct ipuv3_channel`, `struct dmfc_channel`, `struct ipu_dp`, `struct ipu_plane`.
• 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.