arch/powerpc/include/asm/video.h

File Facts

System

Linux kernel

Corpus path

arch/powerpc/include/asm/video.h

Extension

.h

Size

431 bytes

Lines

18

Domain

Architecture Layer

Bucket

arch/powerpc

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

• asm/page.h
• asm-generic/video.h

Detected Declarations

• function pgprot_framebuffer

Annotated Snippet

#ifndef _ASM_VIDEO_H_
#define _ASM_VIDEO_H_

#include <asm/page.h>

static inline pgprot_t pgprot_framebuffer(pgprot_t prot,
					  unsigned long vm_start, unsigned long vm_end,
					  unsigned long offset)
{
	return __phys_mem_access_prot(PHYS_PFN(offset), vm_end - vm_start, prot);
}
#define pgprot_framebuffer pgprot_framebuffer

#include <asm-generic/video.h>

#endif /* _ASM_VIDEO_H_ */

Annotation

• Immediate include surface: `asm/page.h`, `asm-generic/video.h`.
• Detected declarations: `function pgprot_framebuffer`.
• Atlas domain: Architecture Layer / arch/powerpc.
• 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.