22 * |
22 * |
23 */ |
23 */ |
24 |
24 |
25 #ifndef OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP |
25 #ifndef OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP |
26 #define OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP |
26 #define OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP |
27 |
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28 #include "runtime/os.hpp" |
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29 |
27 |
30 // Implementation of class atomic |
28 // Implementation of class atomic |
31 |
29 |
32 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } |
30 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; } |
33 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } |
31 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; } |
62 // omits the instruction set check. |
60 // omits the instruction set check. |
63 |
61 |
64 extern "C" jint _Atomic_swap32(jint exchange_value, volatile jint* dest); |
62 extern "C" jint _Atomic_swap32(jint exchange_value, volatile jint* dest); |
65 extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest); |
63 extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest); |
66 |
64 |
67 extern "C" jint _Atomic_cas32(jint exchange_value, volatile jint* dest, jint compare_value); |
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68 extern "C" intptr_t _Atomic_cas64(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value); |
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69 extern "C" jlong _Atomic_casl (jlong exchange_value, volatile jlong* dest, jlong compare_value); |
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70 |
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71 extern "C" jint _Atomic_add32(jint inc, volatile jint* dest); |
65 extern "C" jint _Atomic_add32(jint inc, volatile jint* dest); |
72 extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest); |
66 extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest); |
73 |
67 |
74 |
68 |
75 inline jint Atomic::add (jint add_value, volatile jint* dest) { |
69 inline jint Atomic::add (jint add_value, volatile jint* dest) { |
95 |
89 |
96 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { |
90 inline void* Atomic::xchg_ptr(void* exchange_value, volatile void* dest) { |
97 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); |
91 return (void*)xchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest); |
98 } |
92 } |
99 |
93 |
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94 // No direct support for cmpxchg of bytes; emulate using int. |
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95 template<> |
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96 struct Atomic::PlatformCmpxchg<1> : Atomic::CmpxchgByteUsingInt {}; |
100 |
97 |
101 inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order) { |
98 template<> |
102 return _Atomic_cas32(exchange_value, dest, compare_value); |
99 template<typename T> |
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100 inline T Atomic::PlatformCmpxchg<4>::operator()(T exchange_value, |
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101 T volatile* dest, |
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102 T compare_value, |
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103 cmpxchg_memory_order order) const { |
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104 STATIC_ASSERT(4 == sizeof(T)); |
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105 T rv; |
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106 __asm__ volatile( |
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107 " cas [%2], %3, %0" |
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108 : "=r" (rv) |
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109 : "0" (exchange_value), "r" (dest), "r" (compare_value) |
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110 : "memory"); |
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111 return rv; |
103 } |
112 } |
104 |
113 |
105 inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order) { |
114 template<> |
106 // Return 64 bit value in %o0 |
115 template<typename T> |
107 return _Atomic_cas64((intptr_t)exchange_value, (intptr_t *)dest, (intptr_t)compare_value); |
116 inline T Atomic::PlatformCmpxchg<8>::operator()(T exchange_value, |
108 } |
117 T volatile* dest, |
109 |
118 T compare_value, |
110 inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value, cmpxchg_memory_order order) { |
119 cmpxchg_memory_order order) const { |
111 return _Atomic_cas64(exchange_value, dest, compare_value); |
120 STATIC_ASSERT(8 == sizeof(T)); |
112 } |
121 T rv; |
113 |
122 __asm__ volatile( |
114 inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value, cmpxchg_memory_order order) { |
123 " casx [%2], %3, %0" |
115 return (void*)cmpxchg_ptr((intptr_t)exchange_value, (volatile intptr_t*)dest, (intptr_t)compare_value, order); |
124 : "=r" (rv) |
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125 : "0" (exchange_value), "r" (dest), "r" (compare_value) |
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126 : "memory"); |
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127 return rv; |
116 } |
128 } |
117 |
129 |
118 #endif // OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP |
130 #endif // OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP |