70 lines
2.0 KiB
C
70 lines
2.0 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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struct memmap_entry {
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uint64_t base;
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uint64_t length;
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uint32_t type;
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uint32_t unused;
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};
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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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struct meminfo {
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size_t uppermem;
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size_t lowermem;
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};
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struct meminfo mmap_get_info(size_t mmap_count, struct memmap_entry *mmap);
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#if defined (BIOS)
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extern struct memmap_entry memmap[];
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extern size_t memmap_entries;
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#endif
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#if defined (UEFI)
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extern struct memmap_entry *memmap;
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extern size_t memmap_entries;
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extern struct memmap_entry *untouched_memmap;
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extern size_t untouched_memmap_entries;
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#endif
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extern bool allocations_disallowed;
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void init_memmap(void);
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struct memmap_entry *get_memmap(size_t *entries);
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struct memmap_entry *get_raw_memmap(size_t *entry_count);
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void print_memmap(struct memmap_entry *mm, size_t size);
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bool memmap_alloc_range_in(struct memmap_entry *m, size_t *_count,
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uint64_t base, uint64_t length, uint32_t type, uint32_t overlay_type, bool do_panic, bool simulation, bool new_entry);
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bool memmap_alloc_range(uint64_t base, uint64_t length, uint32_t type, uint32_t overlay_type, 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 *ext_mem_alloc_type_aligned(size_t count, uint32_t type, size_t alignment);
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void *ext_mem_alloc_type_aligned_mode(size_t count, uint32_t type, size_t alignment, bool allow_high_allocs);
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void *conv_mem_alloc(size_t count);
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void pmm_free(void *ptr, size_t length);
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#if defined (UEFI)
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void pmm_release_uefi_mem(void);
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#endif
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#endif
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