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src/hotspot/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 // PPC64 is not specified as multi-copy-atomic
  45 // So we must not #define CPU_MULTI_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


  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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