24 */
25
26 #ifndef CPU_PPC_GLOBALDEFINITIONS_PPC_HPP
27 #define CPU_PPC_GLOBALDEFINITIONS_PPC_HPP
28
29 #ifdef CC_INTERP
30 #error "CC_INTERP is no longer supported. Removed in change 8145117."
31 #endif
32
33 // Size of PPC Instructions
34 const int BytesPerInstWord = 4;
35
36 const int StackAlignmentInBytes = 16;
37
38 // Indicates whether the C calling conventions require that
39 // 32-bit integer argument values are extended to 64 bits.
40 const bool CCallingConventionRequiresIntsAsLongs = true;
41
42 #define SUPPORTS_NATIVE_CX8
43
44 // The PPC CPUs are NOT multiple-copy-atomic.
45 #define CPU_NOT_MULTIPLE_COPY_ATOMIC
46
47 // The expected size in bytes of a cache line, used to pad data structures.
48 #define DEFAULT_CACHE_LINE_SIZE 128
49
50 #if defined(COMPILER2) && (defined(AIX) || defined(LINUX))
51 // Include Transactional Memory lock eliding optimization
52 #define INCLUDE_RTM_OPT 1
53 #endif
54
55 #define SUPPORT_RESERVED_STACK_AREA
56
57 #define THREAD_LOCAL_POLL
58 // If UseSIGTRAP is active, we only use the poll bit and no polling page.
59 // Otherwise, we fall back to usage of the polling page in nmethods.
60 // Define the condition to use this -XX flag.
61 #define USE_POLL_BIT_ONLY UseSIGTRAP
62
63 #endif // CPU_PPC_GLOBALDEFINITIONS_PPC_HPP
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24 */
25
26 #ifndef CPU_PPC_GLOBALDEFINITIONS_PPC_HPP
27 #define CPU_PPC_GLOBALDEFINITIONS_PPC_HPP
28
29 #ifdef CC_INTERP
30 #error "CC_INTERP is no longer supported. Removed in change 8145117."
31 #endif
32
33 // Size of PPC Instructions
34 const int BytesPerInstWord = 4;
35
36 const int StackAlignmentInBytes = 16;
37
38 // Indicates whether the C calling conventions require that
39 // 32-bit integer argument values are extended to 64 bits.
40 const bool CCallingConventionRequiresIntsAsLongs = true;
41
42 #define SUPPORTS_NATIVE_CX8
43
44 // Decision if IRIW support is needed is subject to JEP 188: Java Memory Model Update.
45 #define SUPPORT_IRIW_FOR_NOT_MULTI_COPY_ATOMIC_CPU SupportIRIW
46 // Only used when previous define is true. Performance overhead is low.
47 #define IRIW_WITH_RELEASE_VOLATILE_IN_CONSTRUCTOR true
48
49 // The expected size in bytes of a cache line, used to pad data structures.
50 #define DEFAULT_CACHE_LINE_SIZE 128
51
52 #if defined(COMPILER2) && (defined(AIX) || defined(LINUX))
53 // Include Transactional Memory lock eliding optimization
54 #define INCLUDE_RTM_OPT 1
55 #endif
56
57 #define SUPPORT_RESERVED_STACK_AREA
58
59 #define THREAD_LOCAL_POLL
60 // If UseSIGTRAP is active, we only use the poll bit and no polling page.
61 // Otherwise, we fall back to usage of the polling page in nmethods.
62 // Define the condition to use this -XX flag.
63 #define USE_POLL_BIT_ONLY UseSIGTRAP
64
65 #endif // CPU_PPC_GLOBALDEFINITIONS_PPC_HPP
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