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kernel/linux-rt-4.4.41/arch/m32r/include/asm/smp.h 3.46 KB
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  #ifndef _ASM_M32R_SMP_H
  #define _ASM_M32R_SMP_H
  
  #ifdef CONFIG_SMP
  #ifndef __ASSEMBLY__
  
  #include <linux/cpumask.h>
  #include <linux/spinlock.h>
  #include <linux/threads.h>
  #include <asm/m32r.h>
  
  #define PHYSID_ARRAY_SIZE       1
  
  struct physid_mask
  {
  	unsigned long mask[PHYSID_ARRAY_SIZE];
  };
  
  typedef struct physid_mask physid_mask_t;
  
  #define physid_set(physid, map)                 set_bit(physid, (map).mask)
  #define physid_clear(physid, map)               clear_bit(physid, (map).mask)
  #define physid_isset(physid, map)               test_bit(physid, (map).mask)
  #define physid_test_and_set(physid, map)        test_and_set_bit(physid, (map).mask)
  
  #define physids_and(dst, src1, src2)            bitmap_and((dst).mask, (src1).mask, (src2).mask, MAX_APICS)
  #define physids_or(dst, src1, src2)             bitmap_or((dst).mask, (src1).mask, (src2).mask, MAX_APICS)
  #define physids_clear(map)                      bitmap_zero((map).mask, MAX_APICS)
  #define physids_complement(dst, src)            bitmap_complement((dst).mask,(src).mask, MAX_APICS)
  #define physids_empty(map)                      bitmap_empty((map).mask, MAX_APICS)
  #define physids_equal(map1, map2)               bitmap_equal((map1).mask, (map2).mask, MAX_APICS)
  #define physids_weight(map)                     bitmap_weight((map).mask, MAX_APICS)
  #define physids_shift_right(d, s, n)            bitmap_shift_right((d).mask, (s).mask, n, MAX_APICS)
  #define physids_shift_left(d, s, n)             bitmap_shift_left((d).mask, (s).mask, n, MAX_APICS)
  #define physids_coerce(map)                     ((map).mask[0])
  
  #define physids_promote(physids)					\
  	({								\
  		physid_mask_t __physid_mask = PHYSID_MASK_NONE;		\
  		__physid_mask.mask[0] = physids;			\
  		__physid_mask;						\
  	})
  
  #define physid_mask_of_physid(physid)					\
  	({								\
  		physid_mask_t __physid_mask = PHYSID_MASK_NONE;		\
  		physid_set(physid, __physid_mask);			\
  		__physid_mask;						\
  	})
  
  #define PHYSID_MASK_ALL         { {[0 ... PHYSID_ARRAY_SIZE-1] = ~0UL} }
  #define PHYSID_MASK_NONE        { {[0 ... PHYSID_ARRAY_SIZE-1] = 0UL} }
  
  extern physid_mask_t phys_cpu_present_map;
  
  /*
   * Some lowlevel functions might want to know about
   * the real CPU ID <-> CPU # mapping.
   */
  extern volatile int cpu_2_physid[NR_CPUS];
  #define cpu_to_physid(cpu_id)	cpu_2_physid[cpu_id]
  
  #define raw_smp_processor_id()	(current_thread_info()->cpu)
  
  extern cpumask_t cpu_callout_map;
  
  static __inline__ int hard_smp_processor_id(void)
  {
  	return (int)*(volatile long *)M32R_CPUID_PORTL;
  }
  
  static __inline__ int cpu_logical_map(int cpu)
  {
  	return cpu;
  }
  
  static __inline__ int cpu_number_map(int cpu)
  {
  	return cpu;
  }
  
  extern void smp_send_timer(void);
  extern unsigned long send_IPI_mask_phys(const cpumask_t*, int, int);
  
  extern void arch_send_call_function_single_ipi(int cpu);
  extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
  
  #endif	/* not __ASSEMBLY__ */
  
  #define NO_PROC_ID (0xff)	/* No processor magic marker */
  
  /*
   * M32R-mp IPI
   */
  #define RESCHEDULE_IPI		(M32R_IRQ_IPI0-M32R_IRQ_IPI0)
  #define INVALIDATE_TLB_IPI	(M32R_IRQ_IPI1-M32R_IRQ_IPI0)
  #define CALL_FUNCTION_IPI	(M32R_IRQ_IPI2-M32R_IRQ_IPI0)
  #define LOCAL_TIMER_IPI		(M32R_IRQ_IPI3-M32R_IRQ_IPI0)
  #define INVALIDATE_CACHE_IPI	(M32R_IRQ_IPI4-M32R_IRQ_IPI0)
  #define CPU_BOOT_IPI		(M32R_IRQ_IPI5-M32R_IRQ_IPI0)
  #define CALL_FUNC_SINGLE_IPI	(M32R_IRQ_IPI6-M32R_IRQ_IPI0)
  
  #define IPI_SHIFT	(0)
  #define NR_IPIS		(8)
  
  #else	/* CONFIG_SMP */
  
  #define hard_smp_processor_id()		0
  
  #endif /* CONFIG_SMP */
  
  #endif	/* _ASM_M32R_SMP_H */