Changeset 8c0d692 in mainline

Timestamp:

2006-01-15T15:30:04Z (19 years ago)

Author:

Jakub Vana <jakub.vana@…>

Branches:

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

Children:

81703f9

Parents:

13fded3

Message:

VHPT entry

File:

• arch/ia64/include/mm/page.h (modified) (1 diff)

arch/ia64/include/mm/page.h

@@ -49 +49 @@
 #define HT_SET_RECORD_ARCH(t, page, asid, frame, flags)
 
+struct VHPT_tag_info
+{
+        unsigned long long tag       :63;
+        unsigned           ti        : 1;
+}__attribute__ ((packed));
+
+union VHPT_tag
+{
+        struct VHPT_tag_info tag_info;
+        unsigned             tag_word;
+};
+
+struct VHPT_entry_present
+{
+
+        /* Word 0 */
+        unsigned p              : 1;
+        unsigned rv0            : 1;
+        unsigned ma             : 3;
+        unsigned a              : 1;
+        unsigned d              : 1;
+        unsigned pl             : 2;
+        unsigned ar             : 3;
+        unsigned long long ppn  :38;
+        unsigned rv1            : 2;
+        unsigned ed             : 1;
+        unsigned ig1            :11;
+        
+        /* Word 1 */
+        unsigned rv2            : 2;
+        unsigned ps             : 6;
+        unsigned key            :24;
+        unsigned rv3            :32;
+        
+        /* Word 2 */
+        union VHPT_tag tag;       /*This data is here as union because I'm not sure if anybody nead access to areas ti and tag in VHPT entry*/
+                            /* But I'm almost sure we nead access to whole word so there are both possibilities*/
+        /* Word 3 */                                                                                                    
+        unsigned long long next :64;
+        
+}__attribute__ ((packed));
+
+struct VHPT_entry_not_present
+{
+        /* Word 0 */
+        unsigned p              : 1;
+        unsigned long long ig0  :52;
+        unsigned ig1            :11;
+        
+        /* Word 1 */
+        unsigned rv2            : 2;
+        unsigned ps             : 6;
+        unsigned long long ig2  :56;
+
+        
+        /* Word 2 */
+        union VHPT_tag tag;       /*This data is here as union because I'm not sure if anybody nead access to areas ti and tag in VHPT entry*/
+                            /* But I'm almost sure we nead access to whole word so there are both possibilities*/
+        /* Word 3 */                                                                                                    
+        unsigned long long next :64;
+        
+}__attribute__ ((packed));
+
+typedef union VHPT_entry 
+{
+        struct VHPT_entry_present        present;
+        struct VHPT_entry_not_present    not_present;
+}VHPT_entry;
+
 extern void page_arch_init(void);