Subversion Repositories HelenOS

Rev

Rev 2787 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
160 jermar 1
#
2071 jermar 2
# Copyright (c) 2005 Jakub Jermar
160 jermar 3
# All rights reserved.
4
#
5
# Redistribution and use in source and binary forms, with or without
6
# modification, are permitted provided that the following conditions
7
# are met:
8
#
9
# - Redistributions of source code must retain the above copyright
10
#   notice, this list of conditions and the following disclaimer.
11
# - Redistributions in binary form must reproduce the above copyright
12
#   notice, this list of conditions and the following disclaimer in the
13
#   documentation and/or other materials provided with the distribution.
14
# - The name of the author may not be used to endorse or promote products
15
#   derived from this software without specific prior written permission.
16
#
17
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
#
28
 
845 decky 29
#include <arch/asm/regname.h>
970 decky 30
#include <arch/boot/boot.h>
191 decky 31
 
987 decky 32
.section K_TEXT_START, "ax"
160 jermar 33
 
34
.global kernel_image_start
970 decky 35
kernel_image_start:
4377 svoboda 36
 
1267 decky 37
	# load temporal kernel stack
970 decky 38
 
1267 decky 39
	lis sp, kernel_stack@ha
40
	addi sp, sp, kernel_stack@l
990 decky 41
 
1267 decky 42
	# set kernel stack for interrupt handling
43
 
44
	mr r31, sp
45
	subis r31, r31, 0x8000
46
	mtsprg0 r31
47
 
1132 decky 48
	# r3 contains physical address of bootinfo_t
49
	# r4 contains size of bootinfo_t
970 decky 50
 
1686 decky 51
	cmpwi r4, 0
52
	beq bootinfo_end
53
 
1267 decky 54
	addis r3, r3, 0x8000
4377 svoboda 55
 
1132 decky 56
	lis r31, bootinfo@ha
57
	addi r31, r31, bootinfo@l  # r31 = bootinfo
970 decky 58
 
1132 decky 59
	bootinfo_loop:
970 decky 60
 
1132 decky 61
		lwz r30, 0(r3)
62
		stw r30, 0(r31)
63
 
64
		addi r3, r3, 4
65
		addi r31, r31, 4
66
		subi r4, r4, 4
67
 
68
		cmpwi r4, 0
69
		bgt bootinfo_loop
70
 
71
	bootinfo_end:
970 decky 72
 
1222 decky 73
	bl arch_pre_main
843 palkovsky 74
	b main_bsp
990 decky 75
 
76
.section K_DATA_START, "aw", @progbits
1007 decky 77
 
1267 decky 78
.align 12
79
kernel_stack_bottom:
990 decky 80
	.space TEMP_STACK_SIZE
1267 decky 81
kernel_stack: