i386/linux/linux-2.3.21/include/asm-ppc/smp.h

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