WebSVN – HelenOS – Diff – /branches/dynload/boot/arch/ppc32/loader/main.c


/*
 * Copyright (c) 2005 Martin Decky
 * 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 "main.h" 
#include <printf.h>
#include "asm.h"
#include "_components.h"
#include <ofw.h>
#include <align.h>
#include <macros.h>
 
#define HEAP_GAP 1024000
 
bootinfo_t bootinfo;
 
 
static void check_align(const void *addr, const char *desc)
{
    if ((unsigned int) addr % PAGE_SIZE != 0) {
        printf("Error: %s not on page boundary, halting.\n", desc);
        halt();
    }
}
 
 
static void fix_overlap(void *va, void **pa, const char *desc, unsigned int *top)
{
    if ((unsigned int) *pa + PAGE_SIZE < *top) {
        printf("Warning: %s overlaps kernel physical area\n", desc);
       
        void *new_va = (void *) (ALIGN_UP((unsigned int) KERNEL_END + HEAP_GAP, PAGE_SIZE) + *top);
        void *new_pa = (void *) (HEAP_GAP + *top);
        *top += PAGE_SIZE;
       
        if (ofw_map(new_pa, new_va, PAGE_SIZE, 0) != 0) {
            printf("Error: Unable to map page aligned memory at %L (physical %L), halting.\n", new_va, new_pa);
            halt();
        }
       
        if ((unsigned int) new_pa + PAGE_SIZE < KERNEL_SIZE) {
            printf("Error: %s cannot be relocated, halting.\n", desc);
            halt();
        }
       
        printf("Relocating %L -> %L (physical %L -> %L)\n", va, new_va, *pa, new_pa);
        *pa = new_pa;
        memcpy(new_va, va, PAGE_SIZE);
    }
}
 
char *release = STRING(RELEASE);
 
#ifdef REVISION
    char *revision = ", revision " STRING(REVISION);
#else
    char *revision = "";
#endif
 
#ifdef TIMESTAMP
    char *timestamp = "\nBuilt on " STRING(TIMESTAMP);
#else
    char *timestamp = "";
#endif
 
/** Print version information. */
static void version_print(void)
{
    printf("HelenOS PPC32 Bootloader\nRelease %s%s%s\nCopyright (c) 2006 HelenOS project\n\n", release, revision, timestamp);
}
 
void bootstrap(void)
{
    version_print();
   
    component_t components[COMPONENTS];
    init_components(components);
       
    unsigned int i;
    for (i = 0; i < COMPONENTS; i++)
        check_align(components[i].start, components[i].name);
   
    check_align(&real_mode, "bootstrap trampoline");
    check_align(&trans, "translation table");
   
    if (!ofw_memmap(&bootinfo.memmap)) {
        printf("Error: Unable to get memory map, halting.\n");
        halt();
    }
   
    if (bootinfo.memmap.total == 0) {
        printf("Error: No memory detected, halting.\n");
        halt();
    }
   
    if (!ofw_screen(&bootinfo.screen))
        printf("Warning: Unable to get screen properties.\n");
   
    if (!ofw_macio(&bootinfo.macio))
        printf("Warning: Unable to get macio properties.\n");
   
    printf("Device statistics\n");
   
    if (bootinfo.screen.addr)
        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);
   
    if (bootinfo.macio.addr)
        printf(" macio at %L (size %d bytes)\n", bootinfo.macio.addr, bootinfo.macio.size);
   
    void *real_mode_pa = ofw_translate(&real_mode);
    void *trans_pa = ofw_translate(&trans);
    void *bootinfo_pa = ofw_translate(&bootinfo);
   
    printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);
    printf(" %L: boot info structure (physical %L)\n", &bootinfo, bootinfo_pa);
    printf(" %L: bootstrap trampoline (physical %L)\n", &real_mode, real_mode_pa);
    printf(" %L: translation table (physical %L)\n", &trans, trans_pa);
    for (i = 0; i < COMPONENTS; i++)
        printf(" %L: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size);
   
    unsigned int top = 0;
    for (i = 0; i < COMPONENTS; i++)
        top += ALIGN_UP(components[i].size, PAGE_SIZE);
   
    unsigned int pages = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) >> PAGE_WIDTH;
   
    for (i = 0; i < pages; i++) {
        void *pa = ofw_translate(KERNEL_START + (i << PAGE_WIDTH));
        fix_overlap(KERNEL_START + (i << PAGE_WIDTH), &pa, "kernel", &top);
        trans[i] = pa;
    }
   
    bootinfo.taskmap.count = 0;
    for (i = 1; i < COMPONENTS; i++) {
        unsigned int component_pages = ALIGN_UP(components[i].size, PAGE_SIZE) >> PAGE_WIDTH;
        unsigned int j;
       
        for (j = 0; j < component_pages; j++) {
            void *pa = ofw_translate(components[i].start + (j << PAGE_WIDTH));
            fix_overlap(components[i].start + (j << PAGE_WIDTH), &pa, components[i].name, &top);
            trans[pages + j] = pa;
            if (j == 0) {
                bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = (void *) (pages << PAGE_WIDTH);
                bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size;
                bootinfo.taskmap.count++;
            }
        }
       
        pages += component_pages;
    }
   
    fix_overlap(&real_mode, &real_mode_pa, "bootstrap trampoline", &top);
    fix_overlap(&trans, &trans_pa, "translation table", &top);
    fix_overlap(&bootinfo, &bootinfo_pa, "boot info", &top);
   
    ofw_setup_palette();
   
    printf("\nBooting the kernel...\n");
    jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, pages << PAGE_WIDTH, real_mode_pa, (void *) bootinfo.screen.addr, bootinfo.screen.scanline);
}
 

Subversion Repositories HelenOS

(root)/branches/dynload/boot/arch/ppc32/loader/main.c @ 4345 – Rev 4341 → 4342

Rev 4341		Rev 4342
1	/*	1	/*
2	* Copyright (c) 2005 Martin Decky	2	* Copyright (c) 2005 Martin Decky
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 "main.h"	29	#include "main.h"
30	#include <printf.h>	30	#include <printf.h>
31	#include "asm.h"	31	#include "asm.h"
32	#include "_components.h"	32	#include "_components.h"
33	#include <ofw.h>	33	#include <ofw.h>
34	#include <align.h>	34	#include <align.h>
-		35	#include <macros.h>
35		36
36	#define HEAP_GAP 1024000	37	#define HEAP_GAP 1024000
37		38
38	bootinfo_t bootinfo;	39	bootinfo_t bootinfo;
39		40
40		41
41	static void check_align(const void addr, const char desc)	42	static void check_align(const void addr, const char desc)
42	{	43	{
43	if ((unsigned int) addr % PAGE_SIZE != 0) {	44	if ((unsigned int) addr % PAGE_SIZE != 0) {
44	printf("Error: %s not on page boundary, halting.\n", desc);	45	printf("Error: %s not on page boundary, halting.\n", desc);
45	halt();	46	halt();
46	}	47	}
47	}	48	}
48		49
49		50
50	static void fix_overlap(void va, void pa, const char desc, unsigned int *top)	51	static void fix_overlap(void va, void pa, const char desc, unsigned int *top)
51	{	52	{
52	if ((unsigned int) pa + PAGE_SIZE < top) {	53	if ((unsigned int) pa + PAGE_SIZE < top) {
53	printf("Warning: %s overlaps kernel physical area\n", desc);	54	printf("Warning: %s overlaps kernel physical area\n", desc);
54		55
55	void new_va = (void ) (ALIGN_UP((unsigned int) KERNEL_END + HEAP_GAP, PAGE_SIZE) + *top);	56	void new_va = (void ) (ALIGN_UP((unsigned int) KERNEL_END + HEAP_GAP, PAGE_SIZE) + *top);
56	void new_pa = (void ) (HEAP_GAP + *top);	57	void new_pa = (void ) (HEAP_GAP + *top);
57	*top += PAGE_SIZE;	58	*top += PAGE_SIZE;
58		59
59	if (ofw_map(new_pa, new_va, PAGE_SIZE, 0) != 0) {	60	if (ofw_map(new_pa, new_va, PAGE_SIZE, 0) != 0) {
60	printf("Error: Unable to map page aligned memory at %L (physical %L), halting.\n", new_va, new_pa);	61	printf("Error: Unable to map page aligned memory at %L (physical %L), halting.\n", new_va, new_pa);
61	halt();	62	halt();
62	}	63	}
63		64
64	if ((unsigned int) new_pa + PAGE_SIZE < KERNEL_SIZE) {	65	if ((unsigned int) new_pa + PAGE_SIZE < KERNEL_SIZE) {
65	printf("Error: %s cannot be relocated, halting.\n", desc);	66	printf("Error: %s cannot be relocated, halting.\n", desc);
66	halt();	67	halt();
67	}	68	}
68		69
69	printf("Relocating %L -> %L (physical %L -> %L)\n", va, new_va, *pa, new_pa);	70	printf("Relocating %L -> %L (physical %L -> %L)\n", va, new_va, *pa, new_pa);
70	*pa = new_pa;	71	*pa = new_pa;
71	memcpy(new_va, va, PAGE_SIZE);	72	memcpy(new_va, va, PAGE_SIZE);
72	}	73	}
73	}	74	}
74		75
75	char *release = RELEASE;	76	char *release = STRING(RELEASE);
76		77
77	#ifdef REVISION	78	#ifdef REVISION
78	char *revision = ", revision " REVISION;	79	char *revision = ", revision " STRING(REVISION);
79	#else	80	#else
80	char *revision = "";	81	char *revision = "";
81	#endif	82	#endif
82		83
83	#ifdef TIMESTAMP	84	#ifdef TIMESTAMP
84	char *timestamp = "\nBuilt on " TIMESTAMP;	85	char *timestamp = "\nBuilt on " STRING(TIMESTAMP);
85	#else	86	#else
86	char *timestamp = "";	87	char *timestamp = "";
87	#endif	88	#endif
88		89
89	/** Print version information. */	90	/** Print version information. */
90	static void version_print(void)	91	static void version_print(void)
91	{	92	{
92	printf("HelenOS PPC32 Bootloader\nRelease %s%s%s\nCopyright (c) 2006 HelenOS project\n\n", release, revision, timestamp);	93	printf("HelenOS PPC32 Bootloader\nRelease %s%s%s\nCopyright (c) 2006 HelenOS project\n\n", release, revision, timestamp);
93	}	94	}
94		95
95	void bootstrap(void)	96	void bootstrap(void)
96	{	97	{
97	version_print();	98	version_print();
98		99
99	component_t components[COMPONENTS];	100	component_t components[COMPONENTS];
100	init_components(components);	101	init_components(components);
101		102
102	unsigned int i;	103	unsigned int i;
103	for (i = 0; i < COMPONENTS; i++)	104	for (i = 0; i < COMPONENTS; i++)
104	check_align(components[i].start, components[i].name);	105	check_align(components[i].start, components[i].name);
105		106
106	check_align(&real_mode, "bootstrap trampoline");	107	check_align(&real_mode, "bootstrap trampoline");
107	check_align(&trans, "translation table");	108	check_align(&trans, "translation table");
108		109
109	if (!ofw_memmap(&bootinfo.memmap)) {	110	if (!ofw_memmap(&bootinfo.memmap)) {
110	printf("Error: Unable to get memory map, halting.\n");	111	printf("Error: Unable to get memory map, halting.\n");
111	halt();	112	halt();
112	}	113	}
113		114
114	if (bootinfo.memmap.total == 0) {	115	if (bootinfo.memmap.total == 0) {
115	printf("Error: No memory detected, halting.\n");	116	printf("Error: No memory detected, halting.\n");
116	halt();	117	halt();
117	}	118	}
118		119
119	if (!ofw_screen(&bootinfo.screen))	120	if (!ofw_screen(&bootinfo.screen))
120	printf("Warning: Unable to get screen properties.\n");	121	printf("Warning: Unable to get screen properties.\n");
121		122
122	if (!ofw_macio(&bootinfo.macio))	123	if (!ofw_macio(&bootinfo.macio))
123	printf("Warning: Unable to get macio properties.\n");	124	printf("Warning: Unable to get macio properties.\n");
124		125
125	printf("Device statistics\n");	126	printf("Device statistics\n");
126		127
127	if (bootinfo.screen.addr)	128	if (bootinfo.screen.addr)
128	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);	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);
129		130
130	if (bootinfo.macio.addr)	131	if (bootinfo.macio.addr)
131	printf(" macio at %L (size %d bytes)\n", bootinfo.macio.addr, bootinfo.macio.size);	132	printf(" macio at %L (size %d bytes)\n", bootinfo.macio.addr, bootinfo.macio.size);
132		133
133	void *real_mode_pa = ofw_translate(&real_mode);	134	void *real_mode_pa = ofw_translate(&real_mode);
134	void *trans_pa = ofw_translate(&trans);	135	void *trans_pa = ofw_translate(&trans);
135	void *bootinfo_pa = ofw_translate(&bootinfo);	136	void *bootinfo_pa = ofw_translate(&bootinfo);
136		137
137	printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);	138	printf("\nMemory statistics (total %d MB)\n", bootinfo.memmap.total >> 20);
138	printf(" %L: boot info structure (physical %L)\n", &bootinfo, bootinfo_pa);	139	printf(" %L: boot info structure (physical %L)\n", &bootinfo, bootinfo_pa);
139	printf(" %L: bootstrap trampoline (physical %L)\n", &real_mode, real_mode_pa);	140	printf(" %L: bootstrap trampoline (physical %L)\n", &real_mode, real_mode_pa);
140	printf(" %L: translation table (physical %L)\n", &trans, trans_pa);	141	printf(" %L: translation table (physical %L)\n", &trans, trans_pa);
141	for (i = 0; i < COMPONENTS; i++)	142	for (i = 0; i < COMPONENTS; i++)
142	printf(" %L: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size);	143	printf(" %L: %s image (size %d bytes)\n", components[i].start, components[i].name, components[i].size);
143		144
144	unsigned int top = 0;	145	unsigned int top = 0;
145	for (i = 0; i < COMPONENTS; i++)	146	for (i = 0; i < COMPONENTS; i++)
146	top += ALIGN_UP(components[i].size, PAGE_SIZE);	147	top += ALIGN_UP(components[i].size, PAGE_SIZE);
147		148
148	unsigned int pages = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) >> PAGE_WIDTH;	149	unsigned int pages = ALIGN_UP(KERNEL_SIZE, PAGE_SIZE) >> PAGE_WIDTH;
149		150
150	for (i = 0; i < pages; i++) {	151	for (i = 0; i < pages; i++) {
151	void *pa = ofw_translate(KERNEL_START + (i << PAGE_WIDTH));	152	void *pa = ofw_translate(KERNEL_START + (i << PAGE_WIDTH));
152	fix_overlap(KERNEL_START + (i << PAGE_WIDTH), &pa, "kernel", &top);	153	fix_overlap(KERNEL_START + (i << PAGE_WIDTH), &pa, "kernel", &top);
153	trans[i] = pa;	154	trans[i] = pa;
154	}	155	}
155		156
156	bootinfo.taskmap.count = 0;	157	bootinfo.taskmap.count = 0;
157	for (i = 1; i < COMPONENTS; i++) {	158	for (i = 1; i < COMPONENTS; i++) {
158	unsigned int component_pages = ALIGN_UP(components[i].size, PAGE_SIZE) >> PAGE_WIDTH;	159	unsigned int component_pages = ALIGN_UP(components[i].size, PAGE_SIZE) >> PAGE_WIDTH;
159	unsigned int j;	160	unsigned int j;
160		161
161	for (j = 0; j < component_pages; j++) {	162	for (j = 0; j < component_pages; j++) {
162	void *pa = ofw_translate(components[i].start + (j << PAGE_WIDTH));	163	void *pa = ofw_translate(components[i].start + (j << PAGE_WIDTH));
163	fix_overlap(components[i].start + (j << PAGE_WIDTH), &pa, components[i].name, &top);	164	fix_overlap(components[i].start + (j << PAGE_WIDTH), &pa, components[i].name, &top);
164	trans[pages + j] = pa;	165	trans[pages + j] = pa;
165	if (j == 0) {	166	if (j == 0) {
166	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = (void *) (pages << PAGE_WIDTH);	167	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr = (void *) (pages << PAGE_WIDTH);
167	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size;	168	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size = components[i].size;
168	bootinfo.taskmap.count++;	169	bootinfo.taskmap.count++;
169	}	170	}
170	}	171	}
171		172
172	pages += component_pages;	173	pages += component_pages;
173	}	174	}
174		175
175	fix_overlap(&real_mode, &real_mode_pa, "bootstrap trampoline", &top);	176	fix_overlap(&real_mode, &real_mode_pa, "bootstrap trampoline", &top);
176	fix_overlap(&trans, &trans_pa, "translation table", &top);	177	fix_overlap(&trans, &trans_pa, "translation table", &top);
177	fix_overlap(&bootinfo, &bootinfo_pa, "boot info", &top);	178	fix_overlap(&bootinfo, &bootinfo_pa, "boot info", &top);
178		179
-		180	ofw_setup_palette();
-		181
179	printf("\nBooting the kernel...\n");	182	printf("\nBooting the kernel...\n");
180	jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, pages << PAGE_WIDTH, real_mode_pa, (void *) bootinfo.screen.addr, bootinfo.screen.scanline);	183	jump_to_kernel(bootinfo_pa, sizeof(bootinfo), trans_pa, pages << PAGE_WIDTH, real_mode_pa, (void *) bootinfo.screen.addr, bootinfo.screen.scanline);
181	}	184	}
182		185