drivers/gpu/drm/radeon/atom-bits.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/radeon/atom-bits.h

Extension

.h

Size

1882 bytes

Lines

49

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.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• function files
• function get_u16
• function get_u32

Annotated Snippet

#ifndef ATOM_BITS_H
#define ATOM_BITS_H

static inline uint8_t get_u8(void *bios, int ptr)
{
    return ((unsigned char *)bios)[ptr];
}
#define U8(ptr) get_u8(ctx->ctx->bios, (ptr))
#define CU8(ptr) get_u8(ctx->bios, (ptr))
static inline uint16_t get_u16(void *bios, int ptr)
{
    return get_u8(bios, ptr)|(((uint16_t)get_u8(bios, ptr+1))<<8);
}
#define U16(ptr) get_u16(ctx->ctx->bios, (ptr))
#define CU16(ptr) get_u16(ctx->bios, (ptr))
static inline uint32_t get_u32(void *bios, int ptr)
{
    return get_u16(bios, ptr)|(((uint32_t)get_u16(bios, ptr+2))<<16);
}
#define U32(ptr) get_u32(ctx->ctx->bios, (ptr))
#define CU32(ptr) get_u32(ctx->bios, (ptr))
#define CSTR(ptr) (((char *)(ctx->bios))+(ptr))

#endif

Annotation

• Detected declarations: `function files`, `function get_u16`, `function get_u32`.
• 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.