Subversion Repositories HelenOS-historic

#

# Copyright (C) 2005 Jakub Jermar

# All rights reserved.

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions

# are met:

#

# - Redistributions of source code must retain the above copyright

#   notice, this list of conditions and the following disclaimer.

# - Redistributions in binary form must reproduce the above copyright

#   notice, this list of conditions and the following disclaimer in the

#   documentation and/or other materials provided with the distribution.

# - The name of the author may not be used to endorse or promote products

#   derived from this software without specific prior written permission.

#

# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#

#include <arch/asm/regname.h>

#include <arch/asm/spr.h>

#include <arch/boot/boot.h>

#include <arch/boot/memmap.h>

.section K_TEXT_START

.global kernel_image_start

kernel_image_start:

	# r10 contains physical address to memmap_t

	# from boot loader

	lis r4, 0x80000000@ha

	addi r4, r4, 0x80000000@l

	add r10, r10, r4

	lis r4, memmap@ha

	addi r4, r4, memmap@l    # r4 = memmap

	lwz r5, 0(r10)           # memmap->total

	stw r5, 0(r4)

	lwzu r5, 4(r10)           # memmap->count

	stwu r5, 4(r4)

	cmpwi r5, 0

	beq memmap_end

	mtctr r5

	memmap_loop:

		lwzu r5, 4(r10)           # memmap->zones[i].start

		stwu r5, 4(r4)

		lwzu r5, 4(r10)           # memmap->zones[i].size

		stwu r5, 4(r4)

	bdnz memmap_loop

	memmap_end:

	b main_bsp