diff options
Diffstat (limited to 'kernel/include/mm/virtual_mm.h')
| -rw-r--r-- | kernel/include/mm/virtual_mm.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/include/mm/virtual_mm.h b/kernel/include/mm/virtual_mm.h index 849b370..58b8692 100644 --- a/kernel/include/mm/virtual_mm.h +++ b/kernel/include/mm/virtual_mm.h @@ -19,11 +19,13 @@ #ifndef __mm_virtual_mm_h #define __mm_virtual_mm_h +#include <common.h> #include <stdbool.h> #include <stdint.h> #define PAGE_DIRECTORY_SIZE 1024 #define PAGE_TABLE_SIZE 1024 +#define PAGE_SIZE (4 * KiB) #define PDE_PRESENT(x) x #define PDE_WRITABLE(x) ((x) << 1) @@ -88,9 +90,14 @@ void virtual_mm_initialize(void); void virtual_mm_map_page(void *physical_address, void *virtual_address); /* + * Unmap a page starting at virtual address + */ +void virtual_mm_unmap_page(void *virtual_address); + +/* * Find a virtual address with n consecutive free addresses. */ -uint32_t virtual_mm_find_free_virtual_addresses(uint32_t n_pages); +void *virtual_mm_find_free_virtual_addresses(uint32_t n_pages); /* * Allocate and map n pages. |