Changeset 32a89bf in mainline for arch/ia64/src/context.S

Timestamp:

2005-05-20T21:39:19Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

14def1f6

Parents:

0cb0a72

Message:

IA-64 work.
Add application registers ar.lc, ar.ec, ar.ccv, ar.csd, ar.ssd to context_t.
Add store/load operations for ar.lc, ar.ec, ar.ccv, ar.csd, ar.ssd to context_save()/restore().
Add application registers ar.rcs, ar.bsp and ar.rnat to context_t.
Proper store/load operations for ar.rcs, ar.bsp and ar.rnat is in the works.

FPU cleanup.
Remove call set_TS_flag() from cpu_identify().
Remove unneeded includes from FPU test #1.

File:

• arch/ia64/src/context.S (modified) (2 diffs)

arch/ia64/src/context.S

@@ -33 +33 @@
 
 context_save:
-        alloc loc0 = ar.pfs, 1, 10, 0, 0
+        alloc loc0 = ar.pfs, 1, 11, 0, 0
         mov loc1 = ar.unat      ;;
-        
+        /* loc2 */
+        mov loc3 = ar.rsc
+        mov loc4 = ar.bsp
+        mov loc5 = ar.rnat
+        mov loc6 = ar.lc
+        mov loc7 = ar.ec
+        mov loc8 = ar.ccv
+        mov loc9 = ar.csd
+        mov loc10 = ar.ssd
+        
+        /*
+         * Save application registers
+         */
         st8 [in0] = loc0, 8     ;;      /* save ar.pfs */
         st8 [in0] = loc1, 8     ;;      /* save ar.unat (caller) */
         mov loc2 = in0          ;;
         add in0 = 8, in0        ;;      /* skip ar.unat (callee) */
-        
-        /*
-         * TODO: save the rest of the context registers.
-         */
-
+        st8 [in0] = loc3, 8     ;;      /* save ar.rsc */
+        st8 [in0] = loc4, 8     ;;      /* save ar.bsp */
+        st8 [in0] = loc5, 8     ;;      /* save ar.rnat */
+        st8 [in0] = loc6, 8     ;;      /* save ar.lc */
+        st8 [in0] = loc7, 8     ;;      /* save ar.ec */
+        st8 [in0] = loc8, 8     ;;      /* save ar.ccv */
+        st8 [in0] = loc9, 8     ;;      /* save ar.csd */
+        st8 [in0] = loc10, 8    ;;      /* save ar.ssd */       
+        
         /*
          * Save general registers including NaT bits
@@ -116 +132 @@
 
 context_restore:
-        alloc loc0 = ar.pfs, 1, 10, 0, 0        ;;
-
-        /*
-         * TODO: restore the rest of the context registers.
-         */
-        
-        ld8 loc0 = [in0], 8     ;;      /* load pfs */
-        ld8 loc1 = [in0], 8     ;;      /* load unat (caller) */
-        ld8 loc2 = [in0], 8     ;;      /* load unat (callee) */
-        
+        alloc loc0 = ar.pfs, 1, 11, 0, 0        ;;
+
+        ld8 loc0 = [in0], 8     ;;      /* load ar.pfs */
+        ld8 loc1 = [in0], 8     ;;      /* load ar.unat (caller) */
+        ld8 loc2 = [in0], 8     ;;      /* load ar.unat (callee) */
+        ld8 loc3 = [in0], 8     ;;      /* load ar.rsc */
+        ld8 loc4 = [in0], 8     ;;      /* load ar.bsp */
+        ld8 loc5 = [in0], 8     ;;      /* load ar.rnat */
+        ld8 loc6 = [in0], 8     ;;      /* load ar.lc */
+        ld8 loc7 = [in0], 8     ;;      /* load ar.ec */
+        ld8 loc8 = [in0], 8     ;;      /* load ar.ccv */
+        ld8 loc9 = [in0], 8     ;;      /* load ar.csd */
+        ld8 loc10 = [in0], 8    ;;      /* load ar.ssd */
+        
+        /*
+         * Restore application registers
+         */
         mov ar.unat = loc2      ;;
+        /* TODO: restore ar.rsc, ar.rnat, ar.bspstore */        
+        mov ar.lc = loc6
+        mov ar.ec = loc7
+        mov ar.ccv = loc8
+        mov ar.csd = loc9
+        mov ar.ssd = loc10
         
         /*