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wip: initial large bitmaps

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daanx 2024-12-03 22:43:14 -08:00
parent 8d9c725482
commit e5fdd6e110
5 changed files with 501 additions and 440 deletions
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3
src/page-map.c
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@ -22,7 +22,8 @@ static bool mi_page_map_init(void) {
// 64 KiB for 4 GiB address space (on 32-bit)
const size_t page_map_size = (MI_ZU(1) << (vbits - MI_ARENA_SLICE_SHIFT));
mi_page_map_entries_per_commit_bit = _mi_divide_up(page_map_size,MI_BITMAP_MAX_BITS);
mi_page_map_entries_per_commit_bit = _mi_divide_up(page_map_size, MI_BITMAP_MIN_BIT_COUNT);
mi_bitmap_init(&mi_page_map_commit, MI_BITMAP_MIN_BIT_COUNT, true);
mi_page_map_all_committed = false; // _mi_os_has_overcommit(); // commit on-access on Linux systems?
_mi_page_map = (uint8_t*)_mi_os_alloc_aligned(page_map_size, 1, mi_page_map_all_committed, true, &mi_page_map_memid, NULL);