Changeset a0d74fd in mainline for arch/ia64/include/mm/asid.h

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/include/mm/asid.h (modified) (2 diffs)

arch/ia64/include/mm/asid.h

@@ -35 +35 @@
 
 typedef __u16 asid_t;
+typedef __u32 rid_t;
+
+#endif  /* __ASM__ */
 
 /**
@@ -41 +44 @@
  * but those extra bits are not used by the kernel. 
  */
-#endif 
- 
 #define RIDS_PER_ASID           7
+
 #define RID_MAX                 262143          /* 2^18 - 1 */
+#define RID_KERNEL              0
+#define RID_INVALID             1
 
-#define ASID2RID(asid, vrn)     (((asid)*RIDS_PER_ASID)+(vrn))
+#define ASID2RID(asid, vrn)     (((asid)>RIDS_PER_ASID)?(((asid)*RIDS_PER_ASID)+(vrn)):(asid))
 #define RID2ASID(rid)           ((rid)/RIDS_PER_ASID)
-
-#ifndef __ASM__
-
-
-typedef __u32 rid_t;
-
-#endif
 
 #define ASID_MAX_ARCH           (RID_MAX/RIDS_PER_ASID)