arch/sparc/include/asm/mdesc.h
Source file repositories/reference/linux-study-clean/arch/sparc/include/asm/mdesc.h
File Facts
- System
- Linux kernel
- Corpus path
arch/sparc/include/asm/mdesc.h- Extension
.h- Size
- 3066 bytes
- Lines
- 100
- Domain
- Architecture Layer
- Bucket
- arch/sparc
- 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
linux/types.hlinux/cpumask.hasm/prom.h
Detected Declarations
struct mdesc_handlestruct mdesc_notifier_clientstruct vdev_portstruct ds_portfunction mdesc_for_each_arc
Annotated Snippet
struct mdesc_notifier_client {
void (*add)(struct mdesc_handle *handle, u64 node,
const char *node_name);
void (*remove)(struct mdesc_handle *handle, u64 node,
const char *node_name);
const char *node_name;
struct mdesc_notifier_client *next;
};
void mdesc_register_notifier(struct mdesc_notifier_client *client);
union md_node_info {
struct vdev_port {
u64 id; /* id */
u64 parent_cfg_hdl; /* parent config handle */
const char *name; /* name (property) */
} vdev_port;
struct ds_port {
u64 id; /* id */
} ds_port;
};
u64 mdesc_get_node(struct mdesc_handle *hp, const char *node_name,
union md_node_info *node_info);
int mdesc_get_node_info(struct mdesc_handle *hp, u64 node,
const char *node_name, union md_node_info *node_info);
void mdesc_fill_in_cpu_data(cpumask_t *mask);
void mdesc_populate_present_mask(cpumask_t *mask);
void mdesc_get_page_sizes(cpumask_t *mask, unsigned long *pgsz_mask);
void sun4v_mdesc_init(void);
#endif
Annotation
- Immediate include surface: `linux/types.h`, `linux/cpumask.h`, `asm/prom.h`.
- Detected declarations: `struct mdesc_handle`, `struct mdesc_notifier_client`, `struct vdev_port`, `struct ds_port`, `function mdesc_for_each_arc`.
- Atlas domain: Architecture Layer / arch/sparc.
- 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.