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comparison src/cpu/sparc/vm/vm_version_sparc.cpp @ 23831:d2dd79a4fd69

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8133023: ParallelGCThreads is not calculated correctly Reviewed-by: kbarrett, tschatzl
author poonam
date Tue, 15 Mar 2016 17:39:56 -0700
parents f79d8e8caecb
children f13e777eb255
comparison
equal deleted inserted replaced
23825:0cd040567d60 23831:d2dd79a4fd69
38 int VM_Version::_features = VM_Version::unknown_m; 38 int VM_Version::_features = VM_Version::unknown_m;
39 const char* VM_Version::_features_str = ""; 39 const char* VM_Version::_features_str = "";
40 unsigned int VM_Version::_L2_data_cache_line_size = 0; 40 unsigned int VM_Version::_L2_data_cache_line_size = 0;
41 41
42 void VM_Version::initialize() { 42 void VM_Version::initialize() {
43 _features = determine_features(); 43
44 assert(_features != VM_Version::unknown_m, "System pre-initialization is not complete.");
45 guarantee(VM_Version::has_v9(), "only SPARC v9 is supported");
46
44 PrefetchCopyIntervalInBytes = prefetch_copy_interval_in_bytes(); 47 PrefetchCopyIntervalInBytes = prefetch_copy_interval_in_bytes();
45 PrefetchScanIntervalInBytes = prefetch_scan_interval_in_bytes(); 48 PrefetchScanIntervalInBytes = prefetch_scan_interval_in_bytes();
46 PrefetchFieldsAhead = prefetch_fields_ahead(); 49 PrefetchFieldsAhead = prefetch_fields_ahead();
47 50
48 assert(0 <= AllocatePrefetchInstr && AllocatePrefetchInstr <= 1, "invalid value"); 51 assert(0 <= AllocatePrefetchInstr && AllocatePrefetchInstr <= 1, "invalid value");
73 76
74 if (AllocatePrefetchStyle == 3 && !has_blk_init()) { 77 if (AllocatePrefetchStyle == 3 && !has_blk_init()) {
75 warning("BIS instructions are not available on this CPU"); 78 warning("BIS instructions are not available on this CPU");
76 FLAG_SET_DEFAULT(AllocatePrefetchStyle, 1); 79 FLAG_SET_DEFAULT(AllocatePrefetchStyle, 1);
77 } 80 }
78
79 guarantee(VM_Version::has_v9(), "only SPARC v9 is supported");
80 81
81 assert(ArraycopySrcPrefetchDistance < 4096, "invalid value"); 82 assert(ArraycopySrcPrefetchDistance < 4096, "invalid value");
82 if (ArraycopySrcPrefetchDistance >= 4096) 83 if (ArraycopySrcPrefetchDistance >= 4096)
83 ArraycopySrcPrefetchDistance = 4064; 84 ArraycopySrcPrefetchDistance = 4064;
84 assert(ArraycopyDstPrefetchDistance < 4096, "invalid value"); 85 assert(ArraycopyDstPrefetchDistance < 4096, "invalid value");