Changeset a0d74fd in mainline for arch/ia64/src/mm/page.c

Timestamp:

2006-03-01T11:07:04Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

9ad03fe

Parents:

2c49fbbe

Message:

ia64 work.
Provide PA2KA(identity) mapping for kernel data references via Alternate Data TLB Fault handler.
Add before_thread_runs_arch() that maps kstack, if necessary.
Add easy to use dtlb_mapping_insert() for comfortable insertion of kernel data mappings.

File:

• arch/ia64/src/mm/page.c (modified) (4 diffs)

arch/ia64/src/mm/page.c

@@ -56 +56 @@
 void set_environment(void)
 {
-
         region_register rr;
         pta_register pta;       
@@ -63 +62 @@
         /*
          * First set up kernel region register.
-         * This action is redundand (see start.S) but I would to keep it to make sure that 
-         *no unexpected changes will be made. 
+         * This is redundant (see start.S) but we keep it here just for sure.
          */
         rr.word = rr_read(VRN_KERNEL);
         rr.map.ve = 0;                  /* disable VHPT walker */
         rr.map.ps = PAGE_WIDTH;
-        rr.map.rid = ASID2RID(ASID_KERNEL,VRN_KERNEL);  
+        rr.map.rid = ASID2RID(ASID_KERNEL, VRN_KERNEL);
         rr_write(VRN_KERNEL, rr.word);
         srlz_i();
         srlz_d();
-        
+
         /*
          * And invalidate the rest of region register.
@@ -84 +82 @@
                 rr.word == rr_read(i);
                 rr.map.ve = 0;          /* disable VHPT walker */
-                rr.map.rid = ASID2RID(ASID_INVALID,i);
+                rr.map.rid = RID_INVALID;
                 rr_write(i, rr.word);
                 srlz_i();
@@ -101 +99 @@
         srlz_i();
         srlz_d();
-        
-
-        return ;        
-        
 }