Subversion Repositories HelenOS-historic

Rev

Rev 1160 | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 1160 Rev 1398
1 
#
 1 
#
2 
# Copyright (C) 2005 Jakub Jermar
 2 
# Copyright (C) 2005 Jakub Jermar
3 
# All rights reserved.
 3 
# All rights reserved.
4 
#
 4 
#
5 
# Redistribution and use in source and binary forms, with or without
 5 
# Redistribution and use in source and binary forms, with or without
6 
# modification, are permitted provided that the following conditions
 6 
# modification, are permitted provided that the following conditions
7 
# are met:
 7 
# are met:
8 
#
 8 
#
9 
# - Redistributions of source code must retain the above copyright
 9 
# - Redistributions of source code must retain the above copyright
10 
#   notice, this list of conditions and the following disclaimer.
 10 
#   notice, this list of conditions and the following disclaimer.
11 
# - Redistributions in binary form must reproduce the above copyright
 11 
# - Redistributions in binary form must reproduce the above copyright
12 
#   notice, this list of conditions and the following disclaimer in the
 12 
#   notice, this list of conditions and the following disclaimer in the
13 
#   documentation and/or other materials provided with the distribution.
 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
 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.
 15 
#   derived from this software without specific prior written permission.
16 
#
 16 
#
17 
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 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
 18 
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 19 
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 20 
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 21 
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 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
 23 
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 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
 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.
 26 
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 
#
 27 
#
28 
 
 28 
 
29 
#include <arch/asm/regname.h>
 29 
#include <arch/asm/regname.h>
30 
#include <arch/boot/boot.h>
 30 
#include <arch/boot/boot.h>
31 
 
 31 
 
32 
.section K_TEXT_START, "ax"
 32 
.section K_TEXT_START, "ax"
33 
 
 33 
 
34 
.global kernel_image_start
 34 
.global kernel_image_start
35 
kernel_image_start:
 35 
kernel_image_start:
36 
 
 36 
 
37 
	# load temporary stack
 37 
	# load temporal kernel stack
38
38
39 
	lis sp, end_stack@ha
 39 
	lis sp, kernel_stack@ha
40 
	addi sp, sp, end_stack@l
 40 
	addi sp, sp, kernel_stack@l
- 
 
 41
- 
 
 42 
	# set kernel stack for interrupt handling
- 
 
 43
- 
 
 44 
	mr r31, sp
- 
 
 45 
	subis r31, r31, 0x8000
- 
 
 46 
	mtsprg0 r31
41
47
42 
	# r3 contains physical address of bootinfo_t
 48 
	# r3 contains physical address of bootinfo_t
43 
	# r4 contains size of bootinfo_t
 49 
	# r4 contains size of bootinfo_t
44
50
45 
	lis r31, 0x80000000@ha
 - 
 
46 
	addi r31, r31, 0x80000000@l
 51 
	addis r3, r3, 0x8000
47
- 
 
48 
	add r3, r3, r31
 - 
 
49 
 
 52 
 
50 
	lis r31, bootinfo@ha
 53 
	lis r31, bootinfo@ha
51 
	addi r31, r31, bootinfo@l  # r31 = bootinfo
 54 
	addi r31, r31, bootinfo@l  # r31 = bootinfo
52
55
53 
	cmpwi r4, 0
 56 
	cmpwi r4, 0
54 
	beq bootinfo_end
 57 
	beq bootinfo_end
55
58
56 
	bootinfo_loop:
 59 
	bootinfo_loop:
57
60
58 
		lwz r30, 0(r3)
 61 
		lwz r30, 0(r3)
59 
		stw r30, 0(r31)
 62 
		stw r30, 0(r31)
60
63
61 
		addi r3, r3, 4
 64 
		addi r3, r3, 4
62 
		addi r31, r31, 4
 65 
		addi r31, r31, 4
63 
		subi r4, r4, 4
 66 
		subi r4, r4, 4
64
67
65 
		cmpwi r4, 0
 68 
		cmpwi r4, 0
66 
		bgt bootinfo_loop
 69 
		bgt bootinfo_loop
67
70
68 
	bootinfo_end:
 71 
	bootinfo_end:
69
72
- 
 
 73 
	bl arch_pre_main
70 
	b main_bsp
 74 
	b main_bsp
71 
 
 75 
 
72 
.section K_DATA_START, "aw", @progbits
 76 
.section K_DATA_START, "aw", @progbits
73 
 
 77 
 
- 
 
 78 
.align 12
- 
 
 79 
kernel_stack_bottom:
74 
	.space TEMP_STACK_SIZE
 80 
	.space TEMP_STACK_SIZE
75 
end_stack:
 81 
kernel_stack:
76 
 
 82