Changeset 4512d7e in mainline for generic/src/mm/as.c

Timestamp:

2006-01-19T22:17:47Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

6461d67c

Parents:

64c44e8

Message:

New ASID management subsystem (initial work, more is required).
Some TLB invalidation changes.

File:

• generic/src/mm/as.c (modified) (6 diffs)

generic/src/mm/as.c

@@ -34 +34 @@
 
 #include <mm/as.h>
+#include <mm/asid.h>
 #include <mm/page.h>
 #include <mm/frame.h>
@@ -40 +41 @@
 #include <arch/mm/page.h>
 #include <genarch/mm/page_pt.h>
+#include <mm/asid.h>
 #include <arch/mm/asid.h>
 #include <arch/mm/as.h>
@@ -71 +73 @@
  *        (Virtual Address Translation) mechanisms.
  */
-as_t *as_create(pte_t *ptl0)
+as_t *as_create(pte_t *ptl0, int flags)
 {
         as_t *as;
@@ -77 +79 @@
         as = (as_t *) malloc(sizeof(as_t));
         if (as) {
+                list_initialize(&as->as_with_asid_link);
                 spinlock_initialize(&as->lock, "as_lock");
                 list_initialize(&as->as_area_head);
 
-                as->asid = asid_get();
+                if (flags & AS_KERNEL)
+                        as->asid = ASID_KERNEL;
+                else
+                        as->asid = ASID_INVALID;
 
                 as->ptl0 = ptl0;
@@ -290 +296 @@
         ipl_t ipl;
         
+        asid_install(as);
+        
         ipl = interrupts_disable();
         spinlock_lock(&as->lock);
@@ -299 +307 @@
         /*
          * Perform architecture-specific steps.
-         * (e.g. invalidate TLB, install ASID etc.)
+         * (e.g. write ASID to hardware register etc.)
          */
         as_install_arch(as);