diff options
author | Brett Weiland <brett_weiland@bpcspace.com> | 2021-03-24 15:42:20 -0500 |
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committer | Brett Weiland <brett_weiland@bpcspace.com> | 2021-03-24 15:42:20 -0500 |
commit | f90c075d5061b3a89316d6bf3d5b190d49049ccd (patch) | |
tree | 36265da568b852ca5c0a8b4affe706cda80c4a9d /src/kernel/include/paging.h | |
parent | 14b109ea24dc5cb1db948de57a2a44c80ef4622e (diff) |
renamed: kernel/include/acpi.h -> include/acpi.h
renamed: kernel/include/libc.h -> include/libc.h
renamed: kernel/include/paging.h -> include/paging.h
renamed: kernel/include/printf.h -> include/printf.h
renamed: kernel/include/serial.h -> include/serial.h
renamed: kernel/include/video.h -> include/video.h
new file: indigo_os
renamed: kernel/libs/acpi.c -> kernel/acpi.c
renamed: kernel/libs/drivers/serial.c -> kernel/drivers/serial.c
renamed: kernel/libs/drivers/video.c -> kernel/drivers/video.c
renamed: kernel/libs/libc.c -> kernel/libc.c
renamed: kernel/libs/page.c -> kernel/page.c
renamed: kernel/libs/printf.c -> kernel/printf.c
renamed: kernel/libs/printf.h -> kernel/printf.h
modified: makefile
Diffstat (limited to 'src/kernel/include/paging.h')
-rw-r--r-- | src/kernel/include/paging.h | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/src/kernel/include/paging.h b/src/kernel/include/paging.h deleted file mode 100644 index 267da43..0000000 --- a/src/kernel/include/paging.h +++ /dev/null @@ -1,71 +0,0 @@ -#include <stdbool.h> -//paging errors -#define PAGEMAP_LOCATION 0x4000 -#ifndef _PAGE_H_ -#define _PAGE_H_ -#include <stdint.h> - -#define PAGE_VIRT_UNALIGNED 0x01 -#define PAGE_PHYS_UNALIGNED 0x02 -#define PAGE_PHYS_INVALID 0x03 -#define PAGE_VIRT_INVALID 0x04 - -//* -typedef struct __attribute__((packed)) { - unsigned int present : 1; // present, must be one when accessed. - unsigned int read_write : 1; // if set to one, read and write is set - unsigned int user : 1; // another bit we'll never use, for seperating CPL 0-2 and 3+ - unsigned int writethrough_cache : 1; // honestly maybe I should look into caching - unsigned int cachable : 1; // hardware chaching. 0 is enabled, whats the worst that could happen? - unsigned int accessed : 1; // we'll never use any of these! - unsigned int zg0 : 1; // needs to be (and will be) zero'd - unsigned int size : 1; - unsigned int zg1 : 1; // needs to be (and will be) zero'd - unsigned int software_marks : 3; // available for our own use, I doubt we'll use it in such a simple thing - - uintptr_t base_ptr : 40; - unsigned int sign:11; -} page_entry; - - -typedef struct __attribute__((packed)) { - page_entry pml4e[512]; - page_entry pdpe[512]; - page_entry pde[512]; - page_entry pte[512]; -} page_table; - -#define MEM_AVAILABLE 1 -#define MEM_RESERVED 2 -#define MEM_APCI_RECLAIMABLE 3 -#define MEM_APCI_NVS 4 -#define MEM_BAD 5 - -#define PAGE_SIZE_4K 12 -#define PAGE_SIZE_2M 21 -#define PAGE_SIZE_1G 30 - -struct memory_table { - uint64_t base; - uint64_t length; - uint32_t type; - uint32_t ACPI; -} __attribute__((packed)); - -struct phys_map { - uint64_t map_size; //this way we won't have to calculate it every time - void *chunk_start; - uint64_t chunk_size; - uint64_t *buddies; -} __attribute__((packed)); - - -extern void* _meminfo_loc; -extern void* _stage2_pagetable; - -bool map_page(void *virtual_addr, void *physical_addr, uint8_t PAGE_SIZE); -void debug_print_memory(); -void create_pagetable_stage2(uint64_t free_mem); -void init_memory(); -#endif - |