Changes in kernel/arch/ia64/src/start.S [22f0561:d75628da] in mainline

File:

• kernel/arch/ia64/src/start.S (modified) (4 diffs)

kernel/arch/ia64/src/start.S

@@ -38 +38 @@
 #define KERNEL_TRANSLATION_I    0x0010000000000661
 #define KERNEL_TRANSLATION_D    0x0010000000000661
+#define KERNEL_TRANSLATION_VIO  0x0010000000000671
+#define KERNEL_TRANSLATION_IO   0x00100FFFFC000671
+#define KERNEL_TRANSLATION_FW   0x00100000F0000671
 
 .section K_TEXT_START, "ax"
@@ -85 +88 @@
         itr.d dtr[r0] = r10
         
-        # Initialize DCR
+        movl r7 = 1
+        movl r8 = (VRN_KERNEL << VRN_SHIFT) | VIO_OFFSET
+        mov cr.ifa = r8
+        movl r10 = (KERNEL_TRANSLATION_VIO)
+        itr.d dtr[r7] = r10
+        
+        mov r11 = cr.itir
+        movl r10 = ~0xfc
+        and r10 = r10, r11
+        movl r11 = (IO_PAGE_WIDTH << PS_SHIFT)
+        or r10 = r10, r11
+        mov cr.itir = r10
+        
+        movl r7 = 2
+        movl r8 = (VRN_KERNEL << VRN_SHIFT) | IO_OFFSET
+        mov cr.ifa = r8
+        movl r10 = (KERNEL_TRANSLATION_IO)
+        itr.d dtr[r7] = r10
+        
+        # Setup mapping for firmware area (also SAPIC)
+        
+        mov r11 = cr.itir
+        movl r10 = ~0xfc
+        and r10 = r10, r11
+        movl r11 = (FW_PAGE_WIDTH << PS_SHIFT)
+        or r10 = r10, r11
+        mov cr.itir = r10
+        
+        movl r7 = 3
+        movl r8 = (VRN_KERNEL << VRN_SHIFT) | FW_OFFSET
+        mov cr.ifa = r8
+        movl r10 = (KERNEL_TRANSLATION_FW)
+        itr.d dtr[r7] = r10
+        
+        # Initialize DSR
         
         movl r10 = (DCR_DP_MASK | DCR_DK_MASK | DCR_DX_MASK | DCR_DR_MASK | DCR_DA_MASK | DCR_DD_MASK | DCR_LC_MASK)
@@ -137 +174 @@
         mov ar.bspstore = r8
         loadrs
-        
+
         #
         # Initialize memory stack to some sane value and allocate a scratch area
@@ -159 +196 @@
         srlz.i
         srlz.d ;;
-        
+
         br.call.sptk.many b0 = arch_pre_main
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