arch/alpha/include/asm/hwrpb.h

File Facts

System

Linux kernel

Corpus path

arch/alpha/include/asm/hwrpb.h

Extension

.h

Size

7064 bytes

Lines

222

Domain

Architecture Layer

Bucket

arch/alpha

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

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

Detected Declarations

• struct pcb_struct
• struct percpu_struct
• struct procdesc_struct
• struct vf_map_struct
• struct crb_struct
• struct memclust_struct
• struct memdesc_struct
• struct dsr_struct
• struct hwrpb_struct
• function hwrpb_update_checksum

Annotated Snippet

struct pcb_struct {
	unsigned long ksp;
	unsigned long usp;
	unsigned long ptbr;
	unsigned int pcc;
	unsigned int asn;
	unsigned long unique;
	unsigned long flags;
	unsigned long res1, res2;
};

struct percpu_struct {
	unsigned long hwpcb[16];
	unsigned long flags;
	unsigned long pal_mem_size;
	unsigned long pal_scratch_size;
	unsigned long pal_mem_pa;
	unsigned long pal_scratch_pa;
	unsigned long pal_revision;
	unsigned long type;
	unsigned long variation;
	unsigned long revision;
	unsigned long serial_no[2];
	unsigned long logout_area_pa;
	unsigned long logout_area_len;
	unsigned long halt_PCBB;
	unsigned long halt_PC;
	unsigned long halt_PS;
	unsigned long halt_arg;
	unsigned long halt_ra;
	unsigned long halt_pv;
	unsigned long halt_reason;
	unsigned long res;
	unsigned long ipc_buffer[21];
	unsigned long palcode_avail[16];
	unsigned long compatibility;
	unsigned long console_data_log_pa;
	unsigned long console_data_log_length;
	unsigned long bcache_info;
};

struct procdesc_struct {
	unsigned long weird_vms_stuff;
	unsigned long address;
};

struct vf_map_struct {
	unsigned long va;
	unsigned long pa;
	unsigned long count;
};

struct crb_struct {
	struct procdesc_struct * dispatch_va;
	struct procdesc_struct * dispatch_pa;
	struct procdesc_struct * fixup_va;
	struct procdesc_struct * fixup_pa;
	/* virtual->physical map */
	unsigned long map_entries;
	unsigned long map_pages;
	struct vf_map_struct map[];
};

struct memclust_struct {
	unsigned long start_pfn;
	unsigned long numpages;
	unsigned long numtested;
	unsigned long bitmap_va;
	unsigned long bitmap_pa;
	unsigned long bitmap_chksum;
	unsigned long usage;
};

struct memdesc_struct {
	unsigned long chksum;
	unsigned long optional_pa;
	unsigned long numclusters;
	struct memclust_struct cluster[];
};

struct dsr_struct {
	long smm;			/* SMM nubber used by LMF       */
	unsigned long  lurt_off;	/* offset to LURT table         */
	unsigned long  sysname_off;	/* offset to sysname char count */
};

struct hwrpb_struct {
	unsigned long phys_addr;	/* check: physical address of the hwrpb */
	unsigned long id;		/* check: "HWRPB\0\0\0" */
	unsigned long revision;

Annotation

• Detected declarations: `struct pcb_struct`, `struct percpu_struct`, `struct procdesc_struct`, `struct vf_map_struct`, `struct crb_struct`, `struct memclust_struct`, `struct memdesc_struct`, `struct dsr_struct`, `struct hwrpb_struct`, `function hwrpb_update_checksum`.
• Atlas domain: Architecture Layer / arch/alpha.
• 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.