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/*
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/*
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 * Copyright (c) 2005 Martin Decky
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 * Copyright (c) 2005 Martin Decky
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * are met:
8
 *
8
 *
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 * - Redistributions of source code must retain the above copyright
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *   derived from this software without specific prior written permission.
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 *
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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#include "main.h" 
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#include "main.h" 
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#include <printf.h>
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#include <printf.h>
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#include "asm.h"
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#include "asm.h"
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#include "_components.h"
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#include "_components.h"
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#include <ofw.h>
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#include <ofw.h>
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#include <align.h>
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#include <align.h>
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#include <macros.h>
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#include <macros.h>
-
 
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#include <string.h>
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37
 
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#define HEAP_GAP 1024000
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#define HEAP_GAP 1024000
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39
 
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bootinfo_t bootinfo;
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bootinfo_t bootinfo;
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41
 
41
 
42
 
42
static void check_align(const void *addr, const char *desc)
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static void check_align(const void *addr, const char *desc)
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{
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{
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    if ((unsigned int) addr % PAGE_SIZE != 0) {
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    if ((unsigned int) addr % PAGE_SIZE != 0) {
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        printf("Error: %s not on page boundary, halting.\n", desc);
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        printf("Error: %s not on page boundary, halting.\n", desc);
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        halt();
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        halt();
47
    }
48
    }
48
}
49
}
49
 
50
 
50
 
51
 
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static void fix_overlap(void *va, void **pa, const char *desc, unsigned int *top)
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static void fix_overlap(void *va, void **pa, const char *desc, unsigned int *top)
52
{
53
{
53
    if ((unsigned int) *pa + PAGE_SIZE < *top) {
54
    if ((unsigned int) *pa + PAGE_SIZE < *top) {
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        printf("Warning: %s overlaps kernel physical area\n", desc);
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        printf("Warning: %s overlaps kernel physical area\n", desc);
55
       
56
       
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        void *new_va = (void *) (ALIGN_UP((unsigned int) KERNEL_END + HEAP_GAP, PAGE_SIZE) + *top);
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        void *new_va = (void *) (ALIGN_UP((unsigned int) KERNEL_END + HEAP_GAP, PAGE_SIZE) + *top);
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        void *new_pa = (void *) (HEAP_GAP + *top);
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        void *new_pa = (void *) (HEAP_GAP + *top);
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        *top += PAGE_SIZE;
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        *top += PAGE_SIZE;
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        if (ofw_map(new_pa, new_va, PAGE_SIZE, 0) != 0) {
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        if (ofw_map(new_pa, new_va, PAGE_SIZE, 0) != 0) {
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            printf("Error: Unable to map page aligned memory at %L (physical %L), halting.\n", new_va, new_pa);
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            printf("Error: Unable to map page aligned memory at %L (physical %L), halting.\n", new_va, new_pa);
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            halt();
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            halt();
63
        }
64
        }
64
       
65
       
65
        if ((unsigned int) new_pa + PAGE_SIZE < KERNEL_SIZE) {
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        if ((unsigned int) new_pa + PAGE_SIZE < KERNEL_SIZE) {
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            printf("Error: %s cannot be relocated, halting.\n", desc);
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            printf("Error: %s cannot be relocated, halting.\n", desc);
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            halt();
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            halt();
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        }
69
        }
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70
       
70
        printf("Relocating %L -> %L (physical %L -> %L)\n", va, new_va, *pa, new_pa);
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        printf("Relocating %L -> %L (physical %L -> %L)\n", va, new_va, *pa, new_pa);
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        *pa = new_pa;
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        *pa = new_pa;
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        memcpy(new_va, va, PAGE_SIZE);
73
        memcpy(new_va, va, PAGE_SIZE);
73
    }
74
    }
74
}
75
}
75
 
76
 
76
char *release = STRING(RELEASE);
77
char *release = STRING(RELEASE);
77
 
78
 
78
#ifdef REVISION
79
#ifdef REVISION
79
    char *revision = ", revision " STRING(REVISION);
80
    char *revision = ", revision " STRING(REVISION);
80
#else
81
#else
81
    char *revision = "";
82
    char *revision = "";
82
#endif
83
#endif
83
 
84
 
84
#ifdef TIMESTAMP
85
#ifdef TIMESTAMP
85
    char *timestamp = "\nBuilt on " STRING(TIMESTAMP);
86
    char *timestamp = "\nBuilt on " STRING(TIMESTAMP);
86
#else
87
#else
87
    char *timestamp = "";
88
    char *timestamp = "";
88
#endif
89
#endif
89
 
90
 
90
/** Print version information. */
91
/** Print version information. */
91
static void version_print(void)
92
static void version_print(void)
92
{
93
{
93
    printf("HelenOS PPC32 Bootloader\nRelease %s%s%s\nCopyright (c) 2006 HelenOS project\n\n", release, revision, timestamp);
94
    printf("HelenOS PPC32 Bootloader\nRelease %s%s%s\nCopyright (c) 2006 HelenOS project\n\n", release, revision, timestamp);
94
}
95
}
95
 
96
 
96
void bootstrap(void)
97
void bootstrap(void)
97
{
98
{
98
    version_print();
99
    version_print();
99
   
100
   
100
    component_t components[COMPONENTS];
101
    component_t components[COMPONENTS];
101
    init_components(components);
102
    init_components(components);
102
       
103
       
103
    unsigned int i;
104
    unsigned int i;
104
    for (i = 0; i < COMPONENTS; i++)
105
    for (i = 0; i < COMPONENTS; i++)
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        check_align(components[i].start, components[i].name);
106
        check_align(components[i].start, components[i].name);
106
   
107
   
107
    check_align(&real_mode, "bootstrap trampoline");
108
    check_align(&real_mode, "bootstrap trampoline");
108
    check_align(&trans, "translation table");
109
    check_align(&trans, "translation table");
109
   
110
   
110
    if (!ofw_memmap(&bootinfo.memmap)) {
111
    if (!ofw_memmap(&bootinfo.memmap)) {
111
        printf("Error: Unable to get memory map, halting.\n");
112
        printf("Error: Unable to get memory map, halting.\n");
112
        halt();
113
        halt();
113
    }
114
    }
114
   
115
   
115
    if (bootinfo.memmap.total == 0) {
116
    if (bootinfo.memmap.total == 0) {
116
        printf("Error: No memory detected, halting.\n");
117
        printf("Error: No memory detected, halting.\n");
117
        halt();
118
        halt();
118
    }
119
    }
119
   
120
   
120
    if (!ofw_screen(&bootinfo.screen))
121
    if (!ofw_screen(&bootinfo.screen))
121
        printf("Warning: Unable to get screen properties.\n");
122
        printf("Warning: Unable to get screen properties.\n");
122
   
123
   
123
    if (!ofw_macio(&bootinfo.macio))
124
    if (!ofw_macio(&bootinfo.macio))
124
        printf("Warning: Unable to get macio properties.\n");
125
        printf("Warning: Unable to get macio properties.\n");
125
   
126
   
126
    printf("Device statistics\n");
127
    printf("Device statistics\n");
127
   
128
   
128
    if (bootinfo.screen.addr)
129
    if (bootinfo.screen.addr)
129
        printf(" screen at %L, resolution %dx%d, %d bpp (scanline %d bytes)\n", bootinfo.screen.addr, bootinfo.screen.width, bootinfo.screen.height, bootinfo.screen.bpp, bootinfo.screen.scanline);
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        printf(" screen at %L, resolution %dx%d, %d bpp (scanline %d bytes)\n", bootinfo.screen.addr, bootinfo.screen.width, bootinfo.screen.height, bootinfo.screen.bpp, bootinfo.screen.scanline);
130
   
131
   
131
    if (bootinfo.macio.addr)
132
    if (bootinfo.macio.addr)
132
        printf(" macio at %L (size %d bytes)\n", bootinfo.macio.addr, bootinfo.macio.size);
133
        printf(" macio at %L (size %d bytes)\n", bootinfo.macio.addr, bootinfo.macio.size);
133
   
134
   
134
    void *real_mode_pa = ofw_translate(&real_mode);
135
    void *real_mode_pa = ofw_translate(&real_mode);
135
    void *trans_pa = ofw_translate(&trans);
136
    void *trans_pa = ofw_translate(&trans);
136
    void *bootinfo_pa = ofw_translate(&bootinfo);
137
    void *bootinfo_pa = ofw_translate(&bootinfo);
137
   
138
   
138
    printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);
139
    printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);
139
    printf(" %L: boot info structure (physical %L)\n", &bootinfo, bootinfo_pa);
140
    printf(" %L: boot info structure (physical %L)\n", &bootinfo, bootinfo_pa);
140
    printf(" %L: bootstrap trampoline (physical %L)\n", &real_mode, real_mode_pa);
141
    printf(" %L: bootstrap trampoline (physical %L)\n", &real_mode, real_mode_pa);
141
    printf(" %L: translation table (physical %L)\n", &trans, trans_pa);
142
    printf(" %L: translation table (physical %L)\n", &trans, trans_pa);
142
    for (i = 0; i < COMPONENTS; i++)
143
    for (i = 0; i < COMPONENTS; i++)
143
        printf(" %L: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size);
144
        printf(" %L: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size);
144
   
145
   
145
    unsigned int top = 0;
146
    unsigned int top = 0;
146
    for (i = 0; i < COMPONENTS; i++)
147
    for (i = 0; i < COMPONENTS; i++)
147
        top += ALIGN_UP(components[i].size, PAGE_SIZE);
148
        top += ALIGN_UP(components[i].size, PAGE_SIZE);
148
   
149
   
149
    unsigned int pages = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) >> PAGE_WIDTH;
150
    unsigned int pages = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) >> PAGE_WIDTH;
150
   
151
   
151
    for (i = 0; i < pages; i++) {
152
    for (i = 0; i < pages; i++) {
152
        void *pa = ofw_translate(KERNEL_START + (i << PAGE_WIDTH));
153
        void *pa = ofw_translate(KERNEL_START + (i << PAGE_WIDTH));
153
        fix_overlap(KERNEL_START + (i << PAGE_WIDTH), &pa, "kernel", &top);
154
        fix_overlap(KERNEL_START + (i << PAGE_WIDTH), &pa, "kernel", &top);
154
        trans[i] = pa;
155
        trans[i] = pa;
155
    }
156
    }
156
   
157
   
157
    bootinfo.taskmap.count = 0;
158
    bootinfo.taskmap.count = 0;
158
    for (i = 1; i < COMPONENTS; i++) {
159
    for (i = 1; i < COMPONENTS; i++) {
159
        unsigned int component_pages = ALIGN_UP(components[i].size, PAGE_SIZE) >> PAGE_WIDTH;
160
        unsigned int component_pages = ALIGN_UP(components[i].size, PAGE_SIZE) >> PAGE_WIDTH;
160
        unsigned int j;
161
        unsigned int j;
161
       
162
       
162
        for (j = 0; j < component_pages; j++) {
163
        for (j = 0; j < component_pages; j++) {
163
            void *pa = ofw_translate(components[i].start + (j << PAGE_WIDTH));
164
            void *pa = ofw_translate(components[i].start + (j << PAGE_WIDTH));
164
            fix_overlap(components[i].start + (j << PAGE_WIDTH), &pa, components[i].name, &top);
165
            fix_overlap(components[i].start + (j << PAGE_WIDTH), &pa, components[i].name, &top);
165
            trans[pages + j] = pa;
166
            trans[pages + j] = pa;
166
            if (j == 0) {
167
            if (j == 0) {
167
                bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = (void *) (pages << PAGE_WIDTH);
168
                bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = (void *) (pages << PAGE_WIDTH);
168
                bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size;
169
                bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size;
-
 
170
                strncpy(bootinfo.taskmap.tasks[bootinfo.taskmap.count].name,
-
 
171
                    components[i].name, BOOTINFO_TASK_NAME_BUFLEN);
-
 
172
 
169
                bootinfo.taskmap.count++;
173
                bootinfo.taskmap.count++;
170
            }
174
            }
171
        }
175
        }
172
       
176
       
173
        pages += component_pages;
177
        pages += component_pages;
174
    }
178
    }
175
   
179
   
176
    fix_overlap(&real_mode, &real_mode_pa, "bootstrap trampoline", &top);
180
    fix_overlap(&real_mode, &real_mode_pa, "bootstrap trampoline", &top);
177
    fix_overlap(&trans, &trans_pa, "translation table", &top);
181
    fix_overlap(&trans, &trans_pa, "translation table", &top);
178
    fix_overlap(&bootinfo, &bootinfo_pa, "boot info", &top);
182
    fix_overlap(&bootinfo, &bootinfo_pa, "boot info", &top);
179
   
183
   
180
    ofw_setup_palette();
184
    ofw_setup_palette();
181
   
185
   
182
    printf("\nBooting the kernel...\n");
186
    printf("\nBooting the kernel...\n");
183
    jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, pages << PAGE_WIDTH, real_mode_pa, (void *) bootinfo.screen.addr, bootinfo.screen.scanline);
187
    jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, pages << PAGE_WIDTH, real_mode_pa, (void *) bootinfo.screen.addr, bootinfo.screen.scanline);
184
}
188
}
185
 
189