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printf spinlock + remove DEPRECATED stuff + begin separating x86 stuff

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xamidev
2026-03-20 09:01:57 +01:00
parent 424b4c4632
commit 3607a7179c
12 changed files with 77 additions and 138 deletions
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src/mem/pmm.c
-37
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@@ -25,43 +25,6 @@ First we'll have to discover the physical memory layout,
and for that we can use a Limine request.
*/
// DEPRECATED
struct limine_memmap_entry* biggest_entry;
/*
* pmm_find_biggest_usable_region - Finding the biggest free memory region (DEPRECATED)
* @memmap: Limine memory map
* @hhdm: Limine HHDM offset
*
* This function uses the memory map provided by the bootloader
* to find the single biggest free memory region we can use.
*/
static void pmm_find_biggest_usable_region(struct limine_memmap_response* memmap, struct limine_hhdm_response* hhdm)
{
// Max length of a usable memory region
uint64_t length_max = 0;
uint64_t offset = hhdm->offset;
DEBUG("Usable Memory:");
for (size_t i=0; i<memmap->entry_count; i++) {
struct limine_memmap_entry* entry = memmap->entries[i];
if (entry->type == LIMINE_MEMMAP_USABLE) {
DEBUG("0x%p-0x%p mapped at 0x%p-0x%p", entry->base, entry->base+entry->length,
entry->base+offset, entry->base+entry->length+offset);
if (entry->length > length_max)
{
length_max = entry->length;
biggest_entry = entry;
}
}
}
DEBUG("Biggest usable memory region:");
DEBUG("0x%p-0x%p mapped at 0x%p-0x%p", biggest_entry->base, biggest_entry->base + biggest_entry->length,
biggest_entry->base+offset, biggest_entry->base+biggest_entry->length+offset);
}
// Offset from Higher Half Direct Map
uint64_t hhdm_off;