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1 /*

3 *

4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

5 *

6 * This file contains Original Code and/or Modifications of Original Code

7 * as defined in and that are subject to the Apple Public Source License

8 * Version 2.0 (the 'License'). You may not use this file except in

9 * compliance with the License. The rights granted to you under the License

10 * may not be used to create, or enable the creation or redistribution of,

11 * unlawful or unlicensed copies of an Apple operating system, or to

12 * circumvent, violate, or enable the circumvention or violation of, any

13 * terms of an Apple operating system software license agreement.

14 *

15 * Please obtain a copy of the License at

16 * http://www.opensource.apple.com/apsl/ and read it before using this file.

17 *

18 * The Original Code and all software distributed under the License are

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20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,

21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

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23 * Please see the License for the specific language governing rights and

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27 */

28 #ifndef _I386_CPU_THREADS_H_

29 #define _I386_CPU_THREADS_H_

31 #include <i386/cpu_data.h>

32 #include <i386/cpu_topology.h>

33 #include <i386/mp.h>

35 /*

36 * These are defined here rather than in cpu_topology.h so as to keep

37 * cpu_topology.h from having a dependency on cpu_data.h.

38 */

39 #define CPU_THREAD_MASK 0x00000001

40 #define cpu_to_core_lapic(cpu) (cpu_to_lapic[cpu] & ~CPU_THREAD_MASK)

41 #define cpu_to_core_cpu(cpu) (lapic_to_cpu[cpu_to_core_lapic(cpu)])

42 #define cpu_to_logical_cpu(cpu) (cpu_to_lapic[cpu] & CPU_THREAD_MASK)

43 #define cpu_is_core_cpu(cpu) (cpu_to_logical_cpu(cpu) == 0)

45 #define _cpu_to_lcpu(cpu) (&cpu_datap(cpu)->lcpu)

46 #define _cpu_to_core(cpu) (_cpu_to_lcpu(cpu)->core)

47 #define _cpu_to_package(cpu) (_cpu_to_core(cpu)->package)

49 #define cpu_to_lcpu(cpu) ((cpu_datap(cpu) != NULL) ? _cpu_to_lcpu(cpu) : NULL)

50 #define cpu_to_core(cpu) ((cpu_to_lcpu(cpu) != NULL) ? _cpu_to_lcpu(cpu)->core : NULL)

51 #define cpu_to_die(cpu) ((cpu_to_lcpu(cpu) != NULL) ? _cpu_to_lcpu(cpu)->die : NULL)

52 #define cpu_to_package(cpu) ((cpu_to_lcpu(cpu) != NULL) ? _cpu_to_lcpu(cpu)->package : NULL)

54 /* Fast access: */

55 #define x86_lcpu() (&current_cpu_datap()->lcpu)

56 #define x86_core() (x86_lcpu()->core)

57 #define x86_die() (x86_lcpu()->die)

58 #define x86_package() (x86_lcpu()->package)

60 #define cpu_is_same_core(cpu1, cpu2) (cpu_to_core(cpu1) == cpu_to_core(cpu2))

61 #define cpu_is_same_die(cpu1, cpu2) (cpu_to_die(cpu1) == cpu_to_die(cpu2))

62 #define cpu_is_same_package(cpu1, cpu2) (cpu_to_package(cpu1) == cpu_to_package(cpu2))

63 #define cpus_share_cache(cpu1, cpu2, _cl) (cpu_to_lcpu(cpu1)->caches[_cl] == cpu_to_lcpu(cpu2)->caches[_cl])

65 /* always take the x86_topo_lock with mp_safe_spin_lock */

66 boolean_t mp_safe_spin_lock(usimple_lock_t lock);

67 extern decl_simple_lock_data(, x86_topo_lock);

 extern void *cpu_thread_alloc(int);

 extern void cpu_thread_init(void);

 extern void cpu_thread_halt(void);

 extern void x86_set_logical_topology(x86_lcpu_t *lcpu, int pnum, int lnum);

 extern void x86_validate_topology(void);

76 extern x86_topology_parameters_t topoParms;

78 extern boolean_t topo_dbg;

79 #define TOPO_DBG(x...) \

80 do { \

81 if (topo_dbg) \

82 kprintf(x); \

83 } while (0) \

85 #endif /* _I386_CPU_THREADS_H_ */