diff options
Diffstat (limited to 'arch/x86/machine/cpu.h')
| -rw-r--r-- | arch/x86/machine/cpu.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/arch/x86/machine/cpu.h b/arch/x86/machine/cpu.h index 674892ad..66376e3a 100644 --- a/arch/x86/machine/cpu.h +++ b/arch/x86/machine/cpu.h @@ -436,18 +436,25 @@ void cpu_mp_register_lapic(unsigned int apic_id, int is_bsp); /* * Probe application processors and start them. - * - * This function enables interrupts. */ void cpu_mp_setup(void); /* * CPU initialization on APs. - * - * This function enables interrupts. */ void cpu_ap_setup(void); +/* + * Synchronize processors on kernel entry. + * + * Wait for all processors to reach a proper state when entering the kernel, + * so that memory allocations can proceed and thread scheduling started. + * + * Once this function returns, cpu_count can be used reliably to know if there + * are more than one processors, and how many. + */ +void cpu_ap_sync(void); + #endif /* __ASSEMBLER__ */ #endif /* _X86_CPU_H */ |