arch/mips/include/asm/smp-cps.h

File Facts

System

Linux kernel

Corpus path

arch/mips/include/asm/smp-cps.h

Extension

.h

Size

1383 bytes

Lines

64

Domain

Architecture Layer

Bucket

arch/mips

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• 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 vpe_boot_config
• struct core_boot_config
• struct cluster_boot_config
• function mips_cps_smp_in_use

Annotated Snippet

struct vpe_boot_config {
	unsigned long pc;
	unsigned long sp;
	unsigned long gp;
};

struct core_boot_config {
	atomic_t vpe_mask;
	struct vpe_boot_config *vpe_config;
};

struct cluster_boot_config {
	unsigned long *core_power;
	struct cpumask cpumask;
	struct core_boot_config *core_config;
};

extern struct cluster_boot_config *mips_cps_cluster_bootcfg;

extern void mips_cps_core_boot(int cca, void __iomem *gcr_base);
extern void mips_cps_core_init(void);

extern void mips_cps_boot_vpes(struct core_boot_config *cfg, unsigned vpe);

extern void mips_cps_pm_save(void);
extern void mips_cps_pm_restore(void);

extern void excep_tlbfill(void);
extern void excep_xtlbfill(void);
extern void excep_cache(void);
extern void excep_genex(void);
extern void excep_intex(void);
extern void excep_ejtag(void);

#ifdef CONFIG_MIPS_CPS

extern bool mips_cps_smp_in_use(void);

#else /* !CONFIG_MIPS_CPS */

static inline bool mips_cps_smp_in_use(void) { return false; }

#endif /* !CONFIG_MIPS_CPS */

#else /* __ASSEMBLER__ */

.extern mips_cps_bootcfg;

#endif /* __ASSEMBLER__ */
#endif /* __MIPS_ASM_SMP_CPS_H__ */

Annotation

• Detected declarations: `struct vpe_boot_config`, `struct core_boot_config`, `struct cluster_boot_config`, `function mips_cps_smp_in_use`.
• Atlas domain: Architecture Layer / arch/mips.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.