drivers/gpu/drm/msm/disp/mdp_format.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/msm/disp/mdp_format.h

Extension

.h

Size

2473 bytes

Lines

82

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

• mdp_common.xml.h

Detected Declarations

• struct msm_format
• enum msm_format_flags

Annotated Snippet

struct msm_format {
	uint32_t pixel_format;
	enum mdp_bpc bpc_g_y, bpc_b_cb, bpc_r_cr;
	enum mdp_bpc_alpha bpc_a;
	u8 element[4];
	enum mdp_fetch_type fetch_type;
	enum mdp_chroma_samp_type chroma_sample;
	bool alpha_enable;
	u8 unpack_count;
	u8 bpp;
	unsigned long flags;
	u8 num_planes;
	enum mdp_fetch_mode fetch_mode;
	u16 tile_height;
};

#define MSM_FORMAT_IS_YUV(X)		((X)->flags & MSM_FORMAT_FLAG_YUV)
#define MSM_FORMAT_IS_DX(X)		((X)->flags & MSM_FORMAT_FLAG_DX)
#define MSM_FORMAT_IS_LINEAR(X)		((X)->fetch_mode == MDP_FETCH_LINEAR)
#define MSM_FORMAT_IS_TILE(X) \
	(((X)->fetch_mode == MDP_FETCH_UBWC) && \
	 !((X)->flags & MSM_FORMAT_FLAG_COMPRESSED))
#define MSM_FORMAT_IS_UBWC(X) \
	(((X)->fetch_mode == MDP_FETCH_UBWC) && \
	 ((X)->flags & MSM_FORMAT_FLAG_COMPRESSED))

#endif

Annotation

• Immediate include surface: `mdp_common.xml.h`.
• Detected declarations: `struct msm_format`, `enum msm_format_flags`.
• 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.