Changeset e456008 in mainline

Timestamp:

2005-09-20T21:54:13Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

fcacfb7

Parents:

c0a91d1

Message:

Add zone pointer to frame_t.
This will be essential for fast frame_free().

Rename frame_zone_t to zone_t.

Declare frame and zone functions to be implemented.

Location:

include

Files:

• mm/frame.h (modified) (3 diffs)
• typedefs.h (modified) (1 diff)

include/mm/frame.h

@@ -38 +38 @@
 #define FRAME_PANIC     2       /* panic on failure */
 
-struct frame_zone {
-        link_t fz_link;         /**< link to previous and next frame_zone */
+struct zone {
+        link_t link;            /**< link to previous and next zone */
 
         spinlock_t lock;        /**< this lock protects everything below */
@@ -52 +52 @@
 
 struct frame {
+        zone_t *zone;           /**< host zone */
         count_t refcount;       /**< when > 0, the frame is in busy list, otherwise the frame is in free list */
         link_t link;            /**< link either to frame_zone free or busy list */
 };
 
-extern spinlock_t frame_zone_head_lock;         /**< this lock protects frame_zone_head list */
-extern link_t frame_zone_head;                  /**< list of all frame_zone's in the system */
+extern spinlock_t zone_head_lock;       /**< this lock protects zone_head list */
+extern link_t zone_head;                /**< list of all zones in the system */
 
 extern count_t frames;
@@ -77 +78 @@
 extern void frame_region_not_free(__address start, __address stop);
 
-extern frame_zone_t *frame_zone_create();
+/*
+ * TODO: Implement the following functions.
+ */
+
+extern void zone_init(void);
+extern zone_t *zone_create(__address start, size_t size, int flags);
+extern void zone_attach(zone_t *zone);
+ 
+/*
+extern frame_t *frame_alloc(int flags);
+extern void frame_free(frame_t *frame);
+*/
+extern void frame_initialize(frame_t *frame);
+extern __address frame_get_address(frame_t *frame);
+extern frame_t *frame_reference(frame_t *frame);
+extern void frame_release(frame_t *frame);
+
 #endif

include/typedefs.h

@@ -64 +64 @@
 typedef struct chunk chunk_t;
 
-typedef struct frame_zone frame_zone_t;
+typedef struct zone zone_t;
 typedef struct frame frame_t;