Changeset 20d50a1 in mainline for generic/src/proc/scheduler.c

Timestamp:

2006-01-13T13:02:45Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

f9425006

Parents:

0369911

Message:

Memory management work.

• vm.* → as.* (as like address space is, imho, more fitting)
• Don't do TLB shootdown on vm_install(). Some architectures only need to call tlb_invalidate_asid().
• Don't allocate all frames for as_area in as_area_create(), but let them be allocated on-demand by as_page_fault().
• Add high-level page fault handler as_page_fault().
• Add as_area_load_mapping().

File:

• generic/src/proc/scheduler.c (modified) (2 diffs)

generic/src/proc/scheduler.c

@@ -33 +33 @@
 #include <mm/frame.h>
 #include <mm/page.h>
-#include <mm/vm.h>
+#include <mm/as.h>
 #include <arch/asm.h>
 #include <arch/faddr.h>
@@ -353 +353 @@
          */
         if (TASK != THREAD->task) {
-                vm_t *m1 = NULL;
-                vm_t *m2;
+                as_t *as1 = NULL;
+                as_t *as2;
 
                 if (TASK) {
                         spinlock_lock(&TASK->lock);
-                        m1 = TASK->vm;
+                        as1 = TASK->as;
                         spinlock_unlock(&TASK->lock);
                 }
 
                 spinlock_lock(&THREAD->task->lock);
-                m2 = THREAD->task->vm;
+                as2 = THREAD->task->as;
                 spinlock_unlock(&THREAD->task->lock);
                 
                 /*
-                 * Note that it is possible for two tasks to share one vm mapping.
-                 */
-                if (m1 != m2) {
-                        /*
-                         * Both tasks and vm mappings are different.
+                 * Note that it is possible for two tasks to share one address space.
+                 */
+                if (as1 != as2) {
+                        /*
+                         * Both tasks and address spaces are different.
                          * Replace the old one with the new one.
                          */
-                        vm_install(m2);
+                        as_install(as2);
                 }
                 TASK = THREAD->task;