26 #include "gc/shared/cardTable.hpp"
27 #include "gc/shared/collectedHeap.hpp"
28 #include "gc/shared/gcLogPrecious.hpp"
29 #include "gc/shared/gc_globals.hpp"
30 #include "gc/shared/space.inline.hpp"
31 #include "logging/log.hpp"
32 #include "memory/virtualspace.hpp"
33 #include "runtime/java.hpp"
34 #include "runtime/os.hpp"
35 #include "services/memTracker.hpp"
36 #include "utilities/align.hpp"
37 #if INCLUDE_PARALLELGC
38 #include "gc/parallel/objectStartArray.hpp"
39 #endif
40
41 uint CardTable::_card_shift = 0;
42 uint CardTable::_card_size = 0;
43 uint CardTable::_card_size_in_words = 0;
44
45 void CardTable::initialize_card_size() {
46 assert(UseG1GC || UseParallelGC || UseSerialGC,
47 "Initialize card size should only be called by card based collectors.");
48
49 _card_size = GCCardSizeInBytes;
50 _card_shift = log2i_exact(_card_size);
51 _card_size_in_words = _card_size / sizeof(HeapWord);
52
53 // Set blockOffsetTable size based on card table entry size
54 BOTConstants::initialize_bot_size(_card_shift);
55
56 #if INCLUDE_PARALLELGC
57 // Set ObjectStartArray block size based on card table entry size
58 ObjectStartArray::initialize_block_size(_card_shift);
59 #endif
60
61 log_info_p(gc, init)("CardTable entry size: " UINT32_FORMAT, _card_size);
62 }
63
64 size_t CardTable::compute_byte_map_size(size_t num_bytes) {
65 assert(_page_size != 0, "uninitialized, check declaration order");
66 const size_t granularity = os::vm_allocation_granularity();
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26 #include "gc/shared/cardTable.hpp"
27 #include "gc/shared/collectedHeap.hpp"
28 #include "gc/shared/gcLogPrecious.hpp"
29 #include "gc/shared/gc_globals.hpp"
30 #include "gc/shared/space.inline.hpp"
31 #include "logging/log.hpp"
32 #include "memory/virtualspace.hpp"
33 #include "runtime/java.hpp"
34 #include "runtime/os.hpp"
35 #include "services/memTracker.hpp"
36 #include "utilities/align.hpp"
37 #if INCLUDE_PARALLELGC
38 #include "gc/parallel/objectStartArray.hpp"
39 #endif
40
41 uint CardTable::_card_shift = 0;
42 uint CardTable::_card_size = 0;
43 uint CardTable::_card_size_in_words = 0;
44
45 void CardTable::initialize_card_size() {
46 assert(UseG1GC || UseParallelGC || UseSerialGC || UseShenandoahGC,
47 "Initialize card size should only be called by card based collectors.");
48
49 _card_size = GCCardSizeInBytes;
50 _card_shift = log2i_exact(_card_size);
51 _card_size_in_words = _card_size / sizeof(HeapWord);
52
53 // Set blockOffsetTable size based on card table entry size
54 BOTConstants::initialize_bot_size(_card_shift);
55
56 #if INCLUDE_PARALLELGC
57 // Set ObjectStartArray block size based on card table entry size
58 ObjectStartArray::initialize_block_size(_card_shift);
59 #endif
60
61 log_info_p(gc, init)("CardTable entry size: " UINT32_FORMAT, _card_size);
62 }
63
64 size_t CardTable::compute_byte_map_size(size_t num_bytes) {
65 assert(_page_size != 0, "uninitialized, check declaration order");
66 const size_t granularity = os::vm_allocation_granularity();
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