Changeset 651 for trunk/kernel/mm/vseg.h

Timestamp:

Nov 14, 2019, 11:50:09 AM (5 years ago)

Author:

alain

Message:

1) Improve the VMM MMAP allocator: implement the "buddy" algorithm
to allocate only aligned blocks.
2) fix a bug in the pthread_join() / pthread_exit() mmechanism.

File:

• trunk/kernel/mm/vseg.h (modified) (2 diffs)

trunk/kernel/mm/vseg.h

@@ -41 +41 @@
 typedef enum
 {
-    VSEG_TYPE_CODE   = 0,          /*! executable user code     / private / localized     */
-    VSEG_TYPE_DATA   = 1,          /*! initialized user data    / public  / distributed   */
-    VSEG_TYPE_STACK  = 2,          /*! execution user stack     / private / localized     */
-    VSEG_TYPE_ANON   = 3,          /*! anonymous mmap           / public  / localized     */
-    VSEG_TYPE_FILE   = 4,          /*! file mmap                / public  / localized     */
-    VSEG_TYPE_REMOTE = 5,          /*! remote mmap              / public  / localized     */
+    VSEG_TYPE_CODE   = 1,          /*! executable user code     / private / localized     */
+    VSEG_TYPE_DATA   = 2,          /*! initialized user data    / public  / distributed   */
+    VSEG_TYPE_STACK  = 3,          /*! execution user stack     / private / localized     */
+    VSEG_TYPE_ANON   = 4,          /*! anonymous mmap           / public  / localized     */
+    VSEG_TYPE_FILE   = 5,          /*! file mmap                / public  / localized     */
+    VSEG_TYPE_REMOTE = 6,          /*! remote mmap              / public  / localized     */
 
-    VSEG_TYPE_KCODE  = 6,          /*! executable kernel code   / private / localized     */
-    VSEG_TYPE_KDATA  = 7,          /*! initialized kernel data  / private / localized     */
-    VSEG_TYPE_KDEV   = 8,          /*! kernel peripheral device / public  / localized     */
+    VSEG_TYPE_KCODE  = 7,          /*! executable kernel code   / private / localized     */
+    VSEG_TYPE_KDATA  = 8,          /*! initialized kernel data  / private / localized     */
+    VSEG_TYPE_KDEV   = 9,          /*! kernel peripheral device / public  / localized     */
 }
 vseg_type_t;
@@ -115 +115 @@
 
 /*******************************************************************************************
- * This function initializes a local vseg descriptor, from the arguments values.
- * It does NOT register the vseg in the local VMM.
+ * This function initializes the "flags" field for a local <vseg> descriptor,
+ * depending on the vseg <type>. 
  *******************************************************************************************
  * @ vseg      : pointer on the vseg descriptor.
- * @ base      : vseg base address.
- * @ size      : vseg size (bytes).
- * @ vpn_base  : first page index.
- * @ vpn_size  : number of pages.
  * @ type      : vseg type.
- * @ cxy       : target cluster for physical mapping.
  ******************************************************************************************/
-void vseg_init( vseg_t      * vseg,
-                    vseg_type_t   type,
-                intptr_t      base,
-                    uint32_t      size,
-                vpn_t         vpn_base,
-                vpn_t         vpn_size,
-                uint32_t      file_offset,
-                uint32_t      file_size,
-                xptr_t        mapper_xp,
-                cxy_t         cxy );
+void vseg_init_flags( vseg_t      * vseg,
+                          vseg_type_t   type );
 
 /*******************************************************************************************