Changeset 481c520 in mainline for arch/ia64/src/start.S

Timestamp:

2006-02-27T12:30:11Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

02f441c0

Parents:

4a2b52f

Message:

sparc64 work.
Revive OFW console code and use it before the kernel switches to standalone console.

ia32 + ia64 cosmetic changes.

File:

• arch/ia64/src/start.S (modified) (12 diffs)

arch/ia64/src/start.S

@@ -27 +27 @@
 #
 
-
 #include <arch/register.h>
 #include <arch/mm/page.h>
@@ -33 +32 @@
 #include <mm/asid.h>
 
-
 #define RR_MASK (0xFFFFFFFF00000002)
 #define RID_SHIFT 8
 #define PS_SHIFT 2
 
-
 #define KERNEL_TRANSLATION_I 0x0010000000000661
 #define KERNEL_TRANSLATION_D 0x0010000000000661
-
 
 .section K_TEXT_START
@@ -51 +47 @@
         .auto
 
-        #Fill TR.i and TR.d using Region Register #VRN_KERNEL
+        # Fill TR.i and TR.d using Region Register #VRN_KERNEL
 
         movl r8=(VRN_KERNEL<<VRN_SHIFT)
@@ -61 +57 @@
         mov rr[r8]=r9
 
-
         movl r8=(VRN_KERNEL<<VRN_SHIFT)
         mov cr.ifa=r8
@@ -68 +63 @@
         movl r10=(KERNEL_TRANSLATION_I)
         itr.i itr[r0]=r10
-
         movl r10=(KERNEL_TRANSLATION_D)
         itr.d dtr[r0]=r10
-
 
         # initialize PSR
@@ -77 +70 @@
         srlz.i
         srlz.d
-        movl r10=(PSR_DT_MASK|PSR_RT_MASK|PSR_IT_MASK|PSR_IC_MASK)  /*Enable paging*/
+        movl r10=(PSR_DT_MASK|PSR_RT_MASK|PSR_IT_MASK|PSR_IC_MASK)  /* Enable paging */
         mov r9=psr
         or r10=r10,r9
@@ -86 +79 @@
         srlz.d
         srlz.i
-.explicit
 
-        /*Return from interupt is only the way how to fill upper half word of PSR*/
-        {rfi;;}
+        .explicit
+        /*
+         * Return From Interupt is the only the way to fill upper half word of PSR.
+         */
+        rfi;;
         {nop 0;;}
         {nop 0;;}
@@ -100 +95 @@
 
 .global paging_start
-        /*Now we are paging*/
 paging_start:
+
+        /*
+         * Now we are paging.
+         */
+
         {nop 0;;}
         {nop 0;;}
@@ -111 +110 @@
         {nop 0;;}
 
-.auto
-        
         # switch to register bank 1
         bsw.1
@@ -118 +115 @@
         # initialize register stack
         mov ar.rsc = r0
-        movl r8=(VRN_KERNEL<<VRN_SHIFT)
+        movl r8=(VRN_KERNEL<<VRN_SHIFT) ;;
         mov ar.bspstore = r8
         loadrs
 
-        .explicit
         # initialize memory stack to some sane value
         movl r12 = stack0;;
@@ -131 +127 @@
         movl r1 = _hardcoded_load_address       ;;
 
-        
-
-        #
-        # Initialize hardcoded_* variables.
-        #
+        /*
+         * Initialize hardcoded_* variables.
+         */
         movl r14 = _hardcoded_ktext_size
         movl r15 = _hardcoded_kdata_size
@@ -147 +141 @@
         st8 [r19] = r16
 
-
-.auto
-        
-        movl r18=main_bsp 
-        mov b1=r18
+        movl r18=main_bsp ;;
+        mov b1=r18 ;;
         br.call.sptk.many b0=b1
-
 
 0: