include/asm-ppc/smp.h

   1 /* smp.h: PPC specific SMP stuff.
   2  *
   3  * Taken from asm-sparc/smp.h
   4  */
   5
   6 #ifdef __KERNEL__
   7 #ifndef _PPC_SMP_H
   8 #define _PPC_SMP_H
   9
  10 #include <linux/config.h>
  11 #include <linux/kernel.h>
  12
  13 #ifdef CONFIG_SMP
  14
  15 #ifndef __ASSEMBLY__
  16
  17 struct cpuinfo_PPC {
  18         unsigned long loops_per_sec;
  19         unsigned long pvr;
  20         unsigned long *pgd_cache;
  21         unsigned long *pte_cache;
  22         unsigned long pgtable_cache_sz;
  23 };
  24 extern struct cpuinfo_PPC cpu_data[NR_CPUS];
  25
  26 extern unsigned long smp_proc_in_lock[NR_CPUS];
  27
  28 extern void smp_store_cpu_info(int id);
  29 extern void smp_send_tlb_invalidate(int);
  30 extern void smp_send_xmon_break(int cpu);
  31 struct pt_regs;
  32 extern void smp_message_recv(int, struct pt_regs *);
  33
  34 #define NO_PROC_ID              0xFF            /* No processor magic marker */
  35 #define PROC_CHANGE_PENALTY     20
  36
  37 /* 1 to 1 mapping on PPC -- Cort */
  38 #define cpu_logical_map(cpu) (cpu)
  39 #define cpu_number_map(x) (x)
  40 extern volatile unsigned long cpu_callin_map[NR_CPUS];
  41
  42 #define smp_processor_id() (current->processor)
  43
  44 extern int smp_hw_index[NR_CPUS];
  45 #define hard_smp_processor_id() (smp_hw_index[smp_processor_id()])
  46
  47 struct klock_info_struct {
  48         unsigned long kernel_flag;
  49         unsigned char akp;
  50 };
  51
  52 extern struct klock_info_struct klock_info;
  53 #define KLOCK_HELD       0xffffffff
  54 #define KLOCK_CLEAR      0x0
  55
  56 #endif /* __ASSEMBLY__ */
  57
  58 #else /* !(CONFIG_SMP) */
  59
  60 #endif /* !(CONFIG_SMP) */
  61
  62 #endif /* !(_PPC_SMP_H) */
  63 #endif /* __KERNEL__ */