46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
#ifndef __MM__PMM_H__
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#define __MM__PMM_H__
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#include <stdint.h>
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#include <stddef.h>
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#include <stdbool.h>
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#include <sys/e820.h>
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#define MEMMAP_USABLE 1
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#define MEMMAP_RESERVED 2
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#define MEMMAP_ACPI_RECLAIMABLE 3
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#define MEMMAP_ACPI_NVS 4
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#define MEMMAP_BAD_MEMORY 5
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#define MEMMAP_BOOTLOADER_RECLAIMABLE 0x1000
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#define MEMMAP_KERNEL_AND_MODULES 0x1001
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#define MEMMAP_FRAMEBUFFER 0x1002
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#define MEMMAP_EFI_RECLAIMABLE 0x2000
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#define MEMMAP_EFI_BOOTSERVICES 0x2001
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extern struct e820_entry_t memmap[];
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extern size_t memmap_entries;
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#if defined (uefi)
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extern struct e820_entry_t untouched_memmap[];
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extern size_t untouched_memmap_entries;
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#endif
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void init_memmap(void);
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struct e820_entry_t *get_memmap(size_t *entries);
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struct e820_entry_t *get_raw_memmap(size_t *entry_count);
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void print_memmap(struct e820_entry_t *mm, size_t size);
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bool memmap_alloc_range(uint64_t base, uint64_t length, uint32_t type, bool free_only, bool panic, bool simulation, bool new_entry);
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void pmm_randomise_memory(void);
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void *ext_mem_alloc(size_t count);
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void *ext_mem_alloc_type(size_t count, uint32_t type);
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void *conv_mem_alloc(size_t count);
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#if defined (uefi)
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void pmm_reclaim_uefi_mem(void);
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void pmm_release_uefi_mem(void);
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#endif
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#endif
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