drivers/staging/media/atomisp/pci/hive_isp_css_common/vamem_global.h

File Facts

System

Linux kernel

Corpus path

drivers/staging/media/atomisp/pci/hive_isp_css_common/vamem_global.h

Extension

.h

Size

798 bytes

Lines

27

Domain

Driver Families

Bucket

drivers/staging

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.

Dependency Surface

• type_support.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __VAMEM_GLOBAL_H_INCLUDED__
#define __VAMEM_GLOBAL_H_INCLUDED__

#include <type_support.h>

#define IS_VAMEM_VERSION_2

/* (log) stepsize of linear interpolation */
#define VAMEM_INTERP_STEP_LOG2	4
#define VAMEM_INTERP_STEP		BIT(VAMEM_INTERP_STEP_LOG2)
/* (physical) size of the tables */
#define VAMEM_TABLE_UNIT_SIZE	((1 << (ISP_VAMEM_ADDRESS_BITS - VAMEM_INTERP_STEP_LOG2)) + 1)
/* (logical) size of the tables */
#define VAMEM_TABLE_UNIT_STEP	((VAMEM_TABLE_UNIT_SIZE - 1) << 1)
/* Number of tables */
#define VAMEM_TABLE_UNIT_COUNT	(ISP_VAMEM_DEPTH / VAMEM_TABLE_UNIT_STEP)

typedef u16				vamem_data_t;

#endif /* __VAMEM_GLOBAL_H_INCLUDED__ */

Annotation

• Immediate include surface: `type_support.h`.
• Atlas domain: Driver Families / drivers/staging.
• 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.