48 // associated with instructions preceding isync have 49 // been performed. 50 // 51 // Semantic barrier instructions: 52 // (as defined in orderAccess.hpp) 53 // 54 // - release orders Store|Store, (maps to lwsync) 55 // Load|Store 56 // - acquire orders Load|Store, (maps to lwsync) 57 // Load|Load 58 // - fence orders Store|Store, (maps to sync) 59 // Load|Store, 60 // Load|Load, 61 // Store|Load 62 // 63 64 #define inlasm_sync() __asm__ __volatile__ ("sync" : : : "memory"); 65 #define inlasm_lwsync() __asm__ __volatile__ ("lwsync" : : : "memory"); 66 #define inlasm_eieio() __asm__ __volatile__ ("eieio" : : : "memory"); 67 #define inlasm_isync() __asm__ __volatile__ ("isync" : : : "memory"); 68 #define inlasm_release() inlasm_lwsync(); 69 #define inlasm_acquire() inlasm_lwsync(); 70 // Use twi-isync for load_acquire (faster than lwsync). 71 #define inlasm_acquire_reg(X) __asm__ __volatile__ ("twi 0,%0,0\n isync\n" : : "r" (X) : "memory"); 72 #define inlasm_fence() inlasm_sync(); 73 74 inline void OrderAccess::loadload() { inlasm_lwsync(); } 75 inline void OrderAccess::storestore() { inlasm_lwsync(); } 76 inline void OrderAccess::loadstore() { inlasm_lwsync(); } 77 inline void OrderAccess::storeload() { inlasm_fence(); } 78 79 inline void OrderAccess::acquire() { inlasm_acquire(); } 80 inline void OrderAccess::release() { inlasm_release(); } 81 inline void OrderAccess::fence() { inlasm_fence(); } 82 83 inline jbyte OrderAccess::load_acquire(volatile jbyte* p) { register jbyte t = *p; inlasm_acquire_reg(t); return t; } 84 inline jshort OrderAccess::load_acquire(volatile jshort* p) { register jshort t = *p; inlasm_acquire_reg(t); return t; } 85 inline jint OrderAccess::load_acquire(volatile jint* p) { register jint t = *p; inlasm_acquire_reg(t); return t; } 86 inline jlong OrderAccess::load_acquire(volatile jlong* p) { register jlong t = *p; inlasm_acquire_reg(t); return t; } 87 inline jubyte OrderAccess::load_acquire(volatile jubyte* p) { register jubyte t = *p; inlasm_acquire_reg(t); return t; } 88 inline jushort OrderAccess::load_acquire(volatile jushort* p) { register jushort t = *p; inlasm_acquire_reg(t); return t; } 89 inline juint OrderAccess::load_acquire(volatile juint* p) { register juint t = *p; inlasm_acquire_reg(t); return t; } 90 inline julong OrderAccess::load_acquire(volatile julong* p) { return (julong)load_acquire((volatile jlong*)p); } 91 inline jfloat OrderAccess::load_acquire(volatile jfloat* p) { register jfloat t = *p; inlasm_acquire(); return t; } 92 inline jdouble OrderAccess::load_acquire(volatile jdouble* p) { register jdouble t = *p; inlasm_acquire(); return t; } 93 94 inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t* p) { return (intptr_t)load_acquire((volatile jlong*)p); } 95 inline void* OrderAccess::load_ptr_acquire(volatile void* p) { return (void*) load_acquire((volatile jlong*)p); } 96 inline void* OrderAccess::load_ptr_acquire(const volatile void* p) { return (void*) load_acquire((volatile jlong*)p); } 97 98 inline void OrderAccess::release_store(volatile jbyte* p, jbyte v) { inlasm_release(); *p = v; } 99 inline void OrderAccess::release_store(volatile jshort* p, jshort v) { inlasm_release(); *p = v; } 100 inline void OrderAccess::release_store(volatile jint* p, jint v) { inlasm_release(); *p = v; } 101 inline void OrderAccess::release_store(volatile jlong* p, jlong v) { inlasm_release(); *p = v; } 102 inline void OrderAccess::release_store(volatile jubyte* p, jubyte v) { inlasm_release(); *p = v; } 103 inline void OrderAccess::release_store(volatile jushort* p, jushort v) { inlasm_release(); *p = v; } 104 inline void OrderAccess::release_store(volatile juint* p, juint v) { inlasm_release(); *p = v; } 105 inline void OrderAccess::release_store(volatile julong* p, julong v) { inlasm_release(); *p = v; } 106 inline void OrderAccess::release_store(volatile jfloat* p, jfloat v) { inlasm_release(); *p = v; } 107 inline void OrderAccess::release_store(volatile jdouble* p, jdouble v) { inlasm_release(); *p = v; } 108 109 inline void OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { inlasm_release(); *p = v; } 110 inline void OrderAccess::release_store_ptr(volatile void* p, void* v) { inlasm_release(); *(void* volatile *)p = v; } 111 112 inline void OrderAccess::store_fence(jbyte* p, jbyte v) { *p = v; inlasm_fence(); } 113 inline void OrderAccess::store_fence(jshort* p, jshort v) { *p = v; inlasm_fence(); } 114 inline void OrderAccess::store_fence(jint* p, jint v) { *p = v; inlasm_fence(); } 115 inline void OrderAccess::store_fence(jlong* p, jlong v) { *p = v; inlasm_fence(); } 116 inline void OrderAccess::store_fence(jubyte* p, jubyte v) { *p = v; inlasm_fence(); } 117 inline void OrderAccess::store_fence(jushort* p, jushort v) { *p = v; inlasm_fence(); } 118 inline void OrderAccess::store_fence(juint* p, juint v) { *p = v; inlasm_fence(); } 119 inline void OrderAccess::store_fence(julong* p, julong v) { *p = v; inlasm_fence(); } 120 inline void OrderAccess::store_fence(jfloat* p, jfloat v) { *p = v; inlasm_fence(); } 121 inline void OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; inlasm_fence(); } 122 123 inline void OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; inlasm_fence(); } 124 inline void OrderAccess::store_ptr_fence(void** p, void* v) { *p = v; inlasm_fence(); } 125 126 inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { inlasm_release(); *p = v; inlasm_fence(); } 127 inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { inlasm_release(); *p = v; inlasm_fence(); } 128 inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { inlasm_release(); *p = v; inlasm_fence(); } 129 inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { inlasm_release(); *p = v; inlasm_fence(); } 130 inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { inlasm_release(); *p = v; inlasm_fence(); } 131 inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { inlasm_release(); *p = v; inlasm_fence(); } 132 inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { inlasm_release(); *p = v; inlasm_fence(); } 133 inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { inlasm_release(); *p = v; inlasm_fence(); } 134 inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { inlasm_release(); *p = v; inlasm_fence(); } 135 inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { inlasm_release(); *p = v; inlasm_fence(); } 136 137 inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { inlasm_release(); *p = v; inlasm_fence(); } 138 inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { inlasm_release(); *(void* volatile *)p = v; inlasm_fence(); } 139 140 #undef inlasm_sync 141 #undef inlasm_lwsync 142 #undef inlasm_eieio 143 #undef inlasm_isync 144 #undef inlasm_release 145 #undef inlasm_acquire 146 #undef inlasm_fence 147 148 #endif // OS_CPU_LINUX_PPC_VM_ORDERACCESS_LINUX_PPC_INLINE_HPP | 48 // associated with instructions preceding isync have 49 // been performed. 50 // 51 // Semantic barrier instructions: 52 // (as defined in orderAccess.hpp) 53 // 54 // - release orders Store|Store, (maps to lwsync) 55 // Load|Store 56 // - acquire orders Load|Store, (maps to lwsync) 57 // Load|Load 58 // - fence orders Store|Store, (maps to sync) 59 // Load|Store, 60 // Load|Load, 61 // Store|Load 62 // 63 64 #define inlasm_sync() __asm__ __volatile__ ("sync" : : : "memory"); 65 #define inlasm_lwsync() __asm__ __volatile__ ("lwsync" : : : "memory"); 66 #define inlasm_eieio() __asm__ __volatile__ ("eieio" : : : "memory"); 67 #define inlasm_isync() __asm__ __volatile__ ("isync" : : : "memory"); 68 // Use twi-isync for load_acquire (faster than lwsync). 69 #define inlasm_acquire_reg(X) __asm__ __volatile__ ("twi 0,%0,0\n isync\n" : : "r" (X) : "memory"); 70 71 inline void OrderAccess::loadload() { inlasm_lwsync(); } 72 inline void OrderAccess::storestore() { inlasm_lwsync(); } 73 inline void OrderAccess::loadstore() { inlasm_lwsync(); } 74 inline void OrderAccess::storeload() { inlasm_sync(); } 75 76 inline void OrderAccess::acquire() { inlasm_lwsync(); } 77 inline void OrderAccess::release() { inlasm_lwsync(); } 78 inline void OrderAccess::fence() { inlasm_sync(); } 79 80 template<> inline jbyte OrderAccess::specialized_load_acquire<jbyte> (volatile jbyte* p) { register jbyte t = load(p); inlasm_acquire_reg(t); return t; } 81 template<> inline jshort OrderAccess::specialized_load_acquire<jshort>(volatile jshort* p) { register jshort t = load(p); inlasm_acquire_reg(t); return t; } 82 template<> inline jint OrderAccess::specialized_load_acquire<jint> (volatile jint* p) { register jint t = load(p); inlasm_acquire_reg(t); return t; } 83 template<> inline jlong OrderAccess::specialized_load_acquire<jlong> (volatile jlong* p) { register jlong t = load(p); inlasm_acquire_reg(t); return t; } 84 85 #undef inlasm_sync 86 #undef inlasm_lwsync 87 #undef inlasm_eieio 88 #undef inlasm_isync 89 #undef inlasm_acquire_reg 90 91 #define VM_HAS_GENERALIZED_ORDER_ACCESS 1 92 93 #endif // OS_CPU_LINUX_PPC_VM_ORDERACCESS_LINUX_PPC_INLINE_HPP |