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24 #ifndef __MONO_SGEN_CARD_TABLE_INLINES_H__
25 #define __MONO_SGEN_CARD_TABLE_INLINES_H__
27 #define SGEN_HAVE_CARDTABLE 1
29 #ifdef SGEN_HAVE_CARDTABLE
31 void sgen_card_table_reset_region (mword start, mword end) MONO_INTERNAL;
32 void* sgen_card_table_align_pointer (void *ptr) MONO_INTERNAL;
33 void sgen_card_table_mark_address (mword address) MONO_INTERNAL;
34 void sgen_card_table_mark_range (mword address, mword size) MONO_INTERNAL;
35 void sgen_cardtable_scan_object (char *obj, mword obj_size, guint8 *cards, SgenGrayQueue *queue) MONO_INTERNAL;
36 gboolean sgen_card_table_get_card_data (guint8 *dest, mword address, mword cards) MONO_INTERNAL;
37 typedef void (*sgen_cardtable_block_callback) (mword start, mword size);
39 /*How many bytes a single card covers*/
42 /* How many bits of the address space is covered by the card table.
43 * If this value is smaller than the number of address bits, card aliasing is required.
45 #define CARD_TABLE_BITS 32
47 #define CARD_SIZE_IN_BYTES (1 << CARD_BITS)
48 #define CARD_COUNT_BITS (CARD_TABLE_BITS - CARD_BITS)
49 #define CARD_COUNT_IN_BYTES (1 << CARD_COUNT_BITS)
50 #define CARD_MASK ((1 << CARD_COUNT_BITS) - 1)
52 #if SIZEOF_VOID_P * 8 > CARD_TABLE_BITS
53 #define SGEN_HAVE_OVERLAPPING_CARDS 1
56 extern guint8 *sgen_cardtable MONO_INTERNAL;
59 #ifdef SGEN_HAVE_OVERLAPPING_CARDS
62 sgen_card_table_get_card_address (mword address)
64 return sgen_cardtable + ((address >> CARD_BITS) & CARD_MASK);
67 extern guint8 *sgen_shadow_cardtable MONO_INTERNAL;
70 sgen_card_table_get_shadow_card_address (mword address)
72 return sgen_shadow_cardtable + ((address >> CARD_BITS) & CARD_MASK);
75 static inline gboolean
76 sgen_card_table_card_begin_scanning (mword address)
78 return *sgen_card_table_get_shadow_card_address (address) != 0;
82 sgen_card_table_prepare_card_for_scanning (guint8 *card)
86 #define sgen_card_table_get_card_scan_address sgen_card_table_get_shadow_card_address
91 sgen_card_table_get_card_address (mword address)
93 return sgen_cardtable + (address >> CARD_BITS);
96 static inline gboolean
97 sgen_card_table_card_begin_scanning (mword address)
99 guint8 *card = sgen_card_table_get_card_address (address);
100 gboolean res = *card;
106 sgen_card_table_prepare_card_for_scanning (guint8 *card)
111 #define sgen_card_table_get_card_scan_address sgen_card_table_get_card_address