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#include 

#include 

#include 

#include 

PSL_HIGHIPL     = 0x2700

NBSG            = 0x20000

ICACHE_ONLY     = 0x00000009

CACHES_OFF      = 0x00000008    | actually a clear and disable --m

#define MAS_STACK INT_STACK

ROOT_TABLE_SIZE = 128

PAGESIZE        = 8192

SUN3_INVALID_PMEG = 255

.globl SYMBOL_NAME(bootup_user_stack)

.globl SYMBOL_NAME(bootup_kernel_stack)

.globl SYMBOL_NAME(pg0)

.globl SYMBOL_NAME(swapper_pg_dir)

.globl SYMBOL_NAME(kernel_pmd_table)

.globl SYMBOL_NAME(availmem)

.global SYMBOL_NAME(m68k_pgtable_cachemode)

.global SYMBOL_NAME(kpt)

| todo: all these should be in bss!

SYMBOL_NAME(swapper_pg_dir):                .skip 0x2000

SYMBOL_NAME(pg0):                           .skip 0x2000

SYMBOL_NAME(kernel_pmd_table):              .skip 0x2000

.globl SYMBOL_NAME(kernel_pg_dir)

.equ    SYMBOL_NAME(kernel_pg_dir),SYMBOL_NAME(kernel_pmd_table)

        .section .head

ENTRY(_stext)

ENTRY(_start)

/* Firstly, disable interrupts and set up function codes. */

        movew   #PSL_HIGHIPL, %sr

        moveq   #FC_CONTROL, %d0

        movec   %d0, %sfc

        movec   %d0, %dfc

/* Make sure we're in context zero. */

        moveq   #0, %d0

        movsb   %d0, AC_CONTEXT

/* map everything the bootloader left us into high memory, clean up the

   excess later */

        lea     (AC_SEGMAP+0),%a0

        lea     (AC_SEGMAP+KERNBASE),%a1

1:

        movsb   %a0@, %d1

        movsb   %d1, %a1@

        cmpib   #SUN3_INVALID_PMEG, %d1

        beq     2f

        addl    #NBSG,%a0

        addl    #NBSG,%a1

        jmp     1b

2:

/* Disable caches and jump to high code. */

        moveq   #ICACHE_ONLY,%d0        | Cache disabled until we're ready to enable it

        movc    %d0, %cacr      |   is this the right value? (yes --m)

        jmp     1f:l

/* Following code executes at high addresses (0xE000xxx). */

1:      lea     SYMBOL_NAME(init_task_union),%a2        | get initial thread...

        lea     %a2@(KTHREAD_SIZE),%sp                  | ...and its stack.

/* copy bootinfo records from the loader to _end */

        lea     SYMBOL_NAME(_end), %a1

        lea     BI_START, %a0

        /* number of longs to copy */

        movel   %a0@, %d0

1:      addl    #4, %a0

        movel   %a0@, %a1@

        addl    #4, %a1

        dbf     %d0, 1b

/* Point MSP at an invalid page to trap if it's used. --m */

        movl    #(PAGESIZE),%d0

        movc    %d0,%msp

        moveq   #-1,%d0

        movsb   %d0,(AC_SEGMAP+0x0)

        jbsr    SYMBOL_NAME(sun3_init)

        jbsr    SYMBOL_NAME(base_trap_init)

        jbsr    SYMBOL_NAME(start_kernel)

        trap    #15

        .data

        .even

SYMBOL_NAME_LABEL(kpt)

        .long 0

SYMBOL_NAME_LABEL(availmem)

        .long 0

| todo: remove next two. --m

SYMBOL_NAME_LABEL(is_medusa)

        .long 0

SYMBOL_NAME_LABEL(m68k_pgtable_cachemode)

        .long 0