release/src-rt-6.x.4708/linux/linux-2.6.36/arch/m32r/include/asm/smp.h

   1 #ifndef _ASM_M32R_SMP_H
   2 #define _ASM_M32R_SMP_H
   3
   4 #ifdef CONFIG_SMP
   5 #ifndef __ASSEMBLY__
   6
   7 #include <linux/cpumask.h>
   8 #include <linux/spinlock.h>
   9 #include <linux/threads.h>
  10 #include <asm/m32r.h>
  11
  12 #define PHYSID_ARRAY_SIZE       1
  13
  14 struct physid_mask
  15 {
  16         unsigned long mask[PHYSID_ARRAY_SIZE];
  17 };
  18
  19 typedef struct physid_mask physid_mask_t;
  20
  21 #define physid_set(physid, map)                 set_bit(physid, (map).mask)
  22 #define physid_clear(physid, map)               clear_bit(physid, (map).mask)
  23 #define physid_isset(physid, map)               test_bit(physid, (map).mask)
  24 #define physid_test_and_set(physid, map)        test_and_set_bit(physid, (map).mask)
  25
  26 #define physids_and(dst, src1, src2)            bitmap_and((dst).mask, (src1).mask, (src2).mask, MAX_APICS)
  27 #define physids_or(dst, src1, src2)             bitmap_or((dst).mask, (src1).mask, (src2).mask, MAX_APICS)
  28 #define physids_clear(map)                      bitmap_zero((map).mask, MAX_APICS)
  29 #define physids_complement(dst, src)            bitmap_complement((dst).mask,(src).mask, MAX_APICS)
  30 #define physids_empty(map)                      bitmap_empty((map).mask, MAX_APICS)
  31 #define physids_equal(map1, map2)               bitmap_equal((map1).mask, (map2).mask, MAX_APICS)
  32 #define physids_weight(map)                     bitmap_weight((map).mask, MAX_APICS)
  33 #define physids_shift_right(d, s, n)            bitmap_shift_right((d).mask, (s).mask, n, MAX_APICS)
  34 #define physids_shift_left(d, s, n)             bitmap_shift_left((d).mask, (s).mask, n, MAX_APICS)
  35 #define physids_coerce(map)                     ((map).mask[0])
  36
  37 #define physids_promote(physids)                                        \
  38         ({                                                              \
  39                 physid_mask_t __physid_mask = PHYSID_MASK_NONE;         \
  40                 __physid_mask.mask[0] = physids;                        \
  41                 __physid_mask;                                          \
  42         })
  43
  44 #define physid_mask_of_physid(physid)                                   \
  45         ({                                                              \
  46                 physid_mask_t __physid_mask = PHYSID_MASK_NONE;         \
  47                 physid_set(physid, __physid_mask);                      \
  48                 __physid_mask;                                          \
  49         })
  50
  51 #define PHYSID_MASK_ALL         { {[0 ... PHYSID_ARRAY_SIZE-1] = ~0UL} }
  52 #define PHYSID_MASK_NONE        { {[0 ... PHYSID_ARRAY_SIZE-1] = 0UL} }
  53
  54 extern physid_mask_t phys_cpu_present_map;
  55
  56 /*
  57  * Some lowlevel functions might want to know about
  58  * the real CPU ID <-> CPU # mapping.
  59  */
  60 extern volatile int cpu_2_physid[NR_CPUS];
  61 #define cpu_to_physid(cpu_id)   cpu_2_physid[cpu_id]
  62
  63 #define raw_smp_processor_id()  (current_thread_info()->cpu)
  64
  65 extern cpumask_t cpu_callout_map;
  66
  67 static __inline__ int hard_smp_processor_id(void)
  68 {
  69         return (int)*(volatile long *)M32R_CPUID_PORTL;
  70 }
  71
  72 static __inline__ int cpu_logical_map(int cpu)
  73 {
  74         return cpu;
  75 }
  76
  77 static __inline__ int cpu_number_map(int cpu)
  78 {
  79         return cpu;
  80 }
  81
  82 static __inline__ unsigned int num_booting_cpus(void)
  83 {
  84         return cpus_weight(cpu_callout_map);
  85 }
  86
  87 extern void smp_send_timer(void);
  88 extern unsigned long send_IPI_mask_phys(cpumask_t, int, int);
  89
  90 extern void arch_send_call_function_single_ipi(int cpu);
  91 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
  92
  93 #endif  /* not __ASSEMBLY__ */
  94
  95 #define NO_PROC_ID (0xff)       /* No processor magic marker */
  96
  97 #define PROC_CHANGE_PENALTY     (15)    /* Schedule penalty */
  98
  99 /*
 100  * M32R-mp IPI
 101  */
 102 #define RESCHEDULE_IPI          (M32R_IRQ_IPI0-M32R_IRQ_IPI0)
 103 #define INVALIDATE_TLB_IPI      (M32R_IRQ_IPI1-M32R_IRQ_IPI0)
 104 #define CALL_FUNCTION_IPI       (M32R_IRQ_IPI2-M32R_IRQ_IPI0)
 105 #define LOCAL_TIMER_IPI         (M32R_IRQ_IPI3-M32R_IRQ_IPI0)
 106 #define INVALIDATE_CACHE_IPI    (M32R_IRQ_IPI4-M32R_IRQ_IPI0)
 107 #define CPU_BOOT_IPI            (M32R_IRQ_IPI5-M32R_IRQ_IPI0)
 108 #define CALL_FUNC_SINGLE_IPI    (M32R_IRQ_IPI6-M32R_IRQ_IPI0)
 109
 110 #define IPI_SHIFT       (0)
 111 #define NR_IPIS         (8)
 112
 113 #else   /* CONFIG_SMP */
 114
 115 #define hard_smp_processor_id()         0
 116
 117 #endif /* CONFIG_SMP */
 118
 119 #endif  /* _ASM_M32R_SMP_H */