diff options
Diffstat (limited to 'kernel/memory/frame.sats')
-rw-r--r-- | kernel/memory/frame.sats | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/kernel/memory/frame.sats b/kernel/memory/frame.sats new file mode 100644 index 0000000..441b85a --- /dev/null +++ b/kernel/memory/frame.sats @@ -0,0 +1,25 @@ +#define PAGE_SIZE 4096 + +staload "kernel/bootinfo/multiboot.sats" + +typedef frame_t = @{ + num = size_t +} + +typedef frame_allocator_t = @{ + next_free_frame = frame_t, + current_area = memory_area_t, + num_areas = size_t, + kernel_start = frame_t, + kernel_end = frame_t, + multiboot_start = frame_t, + multiboot_end = frame_t +} + +vtypedef allocptr = [l : agz] (frame_allocator_t@l , frame_allocator_t@l -<lin,prf> void | ptr l) + +fn containing_address {l : addr} (address : ptr l) : frame_t + +fn allocate_frame {l : agz}{k : agz} (pf : !frame_allocator_t @ l >> frame_allocator_t @ l, bf : !boot_info_t @ k | p : ptr l, b : ptr k) : frame_t + +fn deallocate_frame (p : !allocptr) : void |