arch/powerpc/boot/treeboot-bamboo.c
Source file repositories/reference/linux-study-clean/arch/powerpc/boot/treeboot-bamboo.c
File Facts
- System
- Linux kernel
- Corpus path
arch/powerpc/boot/treeboot-bamboo.c- Extension
.c- Size
- 877 bytes
- Lines
- 41
- 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
ops.hstdio.h44x.hstdlib.h
Detected Declarations
function read_pibs_macfunction platform_init
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright IBM Corporation, 2007
* Josh Boyer <jwboyer@linux.vnet.ibm.com>
*
* Based on ebony wrapper:
* Copyright 2007 David Gibson, IBM Corporation.
*/
#include "ops.h"
#include "stdio.h"
#include "44x.h"
#include "stdlib.h"
BSS_STACK(4096);
#define PIBS_MAC0 0xfffc0400
#define PIBS_MAC1 0xfffc0500
char pibs_mac0[6];
char pibs_mac1[6];
static void read_pibs_mac(void)
{
unsigned long long mac64;
mac64 = strtoull((char *)PIBS_MAC0, 0, 16);
memcpy(&pibs_mac0, (char *)&mac64+2, 6);
mac64 = strtoull((char *)PIBS_MAC1, 0, 16);
memcpy(&pibs_mac1, (char *)&mac64+2, 6);
}
void platform_init(void)
{
unsigned long end_of_ram = 0x8000000;
unsigned long avail_ram = end_of_ram - (unsigned long)_end;
simple_alloc_init(_end, avail_ram, 32, 64);
read_pibs_mac();
bamboo_init((u8 *)&pibs_mac0, (u8 *)&pibs_mac1);
}
Annotation
- Immediate include surface: `ops.h`, `stdio.h`, `44x.h`, `stdlib.h`.
- Detected declarations: `function read_pibs_mac`, `function platform_init`.
- 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.