summaryrefslogtreecommitdiff
path: root/na
diff options
context:
space:
mode:
Diffstat (limited to 'na')
-rw-r--r--na/include/lume/page.h (renamed from na/include/lume/frame.h)20
1 files changed, 10 insertions, 10 deletions
diff --git a/na/include/lume/frame.h b/na/include/lume/page.h
index 4424979..7f3f8d1 100644
--- a/na/include/lume/frame.h
+++ b/na/include/lume/page.h
@@ -4,13 +4,13 @@
#pragma once
/*
- * Frame — Physical page frame descriptor
+ * Page — Physical page descriptor
*
- * Each Frame describes one 4KB physical page. A flat array of Frame
- * structs (frame_map) covers all physical memory discovered via FDT.
+ * Each Page describes one 4KB physical page. A flat array of Page
+ * structs (page_map) covers all physical memory discovered via FDT.
*
* Memory layout is compressed using a union: only one of free/slab
- * metadata is valid at a time, determined by `state`. The refcount
+ * metadata is valid at a time, determined by `state`. The refcount
* field is independent of the union to support COW sharing.
*
* Reference: docs/specs/pmm.md §3.1
@@ -23,23 +23,23 @@
/* Forward declaration — defined in slab module (Phase 2) */
class KmemCache;
-enum class FrameState : uint8 {
+enum class PageState : uint8 {
Free, // In Buddy free list
PcpCached, // In Per-CPU cache (invisible to buddy coalescing)
Allocated, // Handed out to Slab / VMM / user
Slab, // Backing a Slab cache
};
-struct Frame {
+struct Page {
/*
* Reference count (atomic).
- * Starts at 1 on allocation. Incremented by fork() for COW pages.
- * When decremented to 0, the frame is returned to the free pool.
+ * Starts at 1 on allocation. Incremented by fork() for COW pages.
+ * When decremented to 0, the page is returned to the free pool.
*/
lume::atomic<uint32> refcount;
- FrameState state; // Current usage state
- uint8 order; // Buddy order (0–10, i.e. 4KB–4MB)
+ PageState state; // Current usage state
+ uint8 order; // Buddy order (0–10, i.e. 4KB–4MB)
union {
/* Valid when state == Free */