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Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff
[linux-2.6.git] / arch / parisc / kernel / head.S
diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index ddf7e91..3e79e62 100644 (file)
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -12,9 +12,9 @@
  * Initial Version 04-23-1999 by Helge Deller <deller@gmx.de>
  */
 
-#include <linux/autoconf.h>    /* for CONFIG_SMP */
+#include <linux/config.h>      /* for CONFIG_SMP */
 
-#include <asm/offsets.h>
+#include <asm/asm-offsets.h>
 #include <asm/psw.h>
 #include <asm/pdc.h>
        
@@ -36,10 +36,10 @@ boot_args:
        .align  4
        .import init_thread_union,data
        .import fault_vector_20,code    /* IVA parisc 2.0 32 bit */
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
         .import fault_vector_11,code    /* IVA parisc 1.1 32 bit */
        .import $global$                /* forward declaration */
-#endif /*!LP64*/
+#endif /*!CONFIG_64BIT*/
        .export stext
        .export _stext,data             /* Kernel want it this way! */
 _stext:
@@ -76,16 +76,16 @@ $bss_loop:
        mtctl           %r4,%cr24       /* Initialize kernel root pointer */
        mtctl           %r4,%cr25       /* Initialize user root pointer */
 
-#ifdef __LP64__
+#if PT_NLEVELS == 3
        /* Set pmd in pgd */
        load32          PA(pmd0),%r5
        shrd            %r5,PxD_VALUE_SHIFT,%r3 
-        ldo             (PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3     
+       ldo             (PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3
        stw             %r3,ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4)
        ldo             ASM_PMD_ENTRY*ASM_PMD_ENTRY_SIZE(%r5),%r4
 #else
        /* 2-level page table, so pmd == pgd */
-        ldo             ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4),%r4
+       ldo             ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4),%r4
 #endif
 
        /* Fill in pmd with enough pte directories */
@@ -99,7 +99,7 @@ $bss_loop:
        stw             %r3,0(%r4)
        ldo             (ASM_PAGE_SIZE >> PxD_VALUE_SHIFT)(%r3),%r3
        addib,>         -1,%r1,1b
-#ifdef __LP64__
+#if PT_NLEVELS == 3
        ldo             ASM_PMD_ENTRY_SIZE(%r4),%r4
 #else
        ldo             ASM_PGD_ENTRY_SIZE(%r4),%r4
@@ -107,13 +107,14 @@ $bss_loop:
 
 
        /* Now initialize the PTEs themselves */
-       ldo             _PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
+       ldo             0+_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
+       ldi             (1<<(KERNEL_INITIAL_ORDER-PAGE_SHIFT)),%r11 /* PFN count */
        load32          PA(pg0),%r1
 
 $pgt_fill_loop:
        STREGM          %r3,ASM_PTE_ENTRY_SIZE(%r1)
-       ldo             ASM_PAGE_SIZE(%r3),%r3
-       bb,>=           %r3,31-KERNEL_INITIAL_ORDER,$pgt_fill_loop
+       ldo             (1<<PFN_PTE_SHIFT)(%r3),%r3 /* add one PFN */
+       addib,>         -1,%r11,$pgt_fill_loop
        nop
 
        /* Load the return address...er...crash 'n burn */
@@ -170,7 +171,7 @@ common_stext:
        stw             %r0,0x28(%r0)   /* MEM_RENDEZ_HI */
 #endif /*CONFIG_SMP*/
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
        tophys_r1       %sp
 
        /* Save the rfi target address */
@@ -224,8 +225,6 @@ stext_pdc_ret:
        mtctl   %r0,%cr12
        mtctl   %r0,%cr13
 
-       /* Prepare to RFI! Man all the cannons! */
-
        /* Initialize the global data pointer */
        loadgp
 
@@ -235,7 +234,7 @@ stext_pdc_ret:
         * following short sequence of instructions can determine this
         * (without being illegal on a PA1.1 machine).
         */
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
        ldi             32,%r10
        mtctl           %r10,%cr11
        .level 2.0
@@ -248,52 +247,22 @@ stext_pdc_ret:
 
 $is_pa20:
        .level          LEVEL /* restore 1.1 || 2.0w */
-#endif /*!LP64*/
+#endif /*!CONFIG_64BIT*/
        load32          PA(fault_vector_20),%r10
 
 $install_iva:
        mtctl           %r10,%cr14
 
-#ifdef __LP64__
-       b               aligned_rfi
+       b               aligned_rfi  /* Prepare to RFI! Man all the cannons! */
        nop
 
-       .align          256
+       .align 128
 aligned_rfi:
-       ssm             0,0
-       nop             /* 1 */
-       nop             /* 2 */
-       nop             /* 3 */
-       nop             /* 4 */
-       nop             /* 5 */
-       nop             /* 6 */
-       nop             /* 7 */
-       nop             /* 8 */
-#endif
-
-#ifdef __LP64__ /* move to psw.h? */
-#define                PSW_BITS        PSW_Q+PSW_I+PSW_D+PSW_P+PSW_R
-#else
-#define                PSW_BITS        PSW_SM_Q
-#endif
-
-$rfi:  
-       /* turn off troublesome PSW bits */
-       rsm             PSW_BITS,%r0
+       pcxt_ssm_bug
 
-       /* kernel PSW:
-        *  - no interruptions except HPMC and TOC (which are handled by PDC)
-        *  - Q bit set (IODC / PDC interruptions)
-        *  - big-endian
-        *  - virtually mapped
-        */
-       load32          KERNEL_PSW,%r10
-       mtctl           %r10,%ipsw
+       rsm             PSW_SM_QUIET,%r0        /* off troublesome PSW bits */
+       /* Don't need NOPs, have 8 compliant insn before rfi */
 
-       /* Set the space pointers for the post-RFI world
-       ** Clear the two-level IIA Space Queue, effectively setting
-       ** Kernel space.
-       */
        mtctl           %r0,%cr17       /* Clear IIASQ tail */
        mtctl           %r0,%cr17       /* Clear IIASQ head */
 
@@ -301,8 +270,11 @@ $rfi:
        mtctl           %r11,%cr18      /* IIAOQ head */
        ldo             4(%r11),%r11
        mtctl           %r11,%cr18      /* IIAOQ tail */
+
+       load32          KERNEL_PSW,%r10
+       mtctl           %r10,%ipsw
        
-       /* Jump to hyperspace */
+       /* Jump through hyperspace to Virt Mode */
        rfi
        nop
 
@@ -313,7 +285,7 @@ $rfi:
        .import smp_init_current_idle_task,data
        .import smp_callin,code
 
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
 smp_callin_rtn:
         .proc
        .callinfo
@@ -321,7 +293,7 @@ smp_callin_rtn:
        nop
        nop
         .procend
-#endif /*!LP64*/
+#endif /*!CONFIG_64BIT*/
 
 /***************************************************************************
 * smp_slave_stext is executed by all non-monarch Processors when the Monarch
@@ -356,7 +328,7 @@ smp_slave_stext:
        mtctl           %r4,%cr24       /* Initialize kernel root pointer */
        mtctl           %r4,%cr25       /* Initialize user root pointer */
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
        /* Setup PDCE_PROC entry */
        copy            %arg0,%r3
 #else
@@ -373,7 +345,7 @@ smp_slave_stext:
 
        .procend
 #endif /* CONFIG_SMP */
-#ifndef __LP64__
+#ifndef CONFIG_64BIT
        .data
 
        .align  4
@@ -383,4 +355,4 @@ smp_slave_stext:
        .size   $global$,4
 $global$:      
        .word 0
-#endif /*!LP64*/
+#endif /*!CONFIG_64BIT*/
linux-2.6