WebSVN – HelenOS – Diff – /branches/dynload/boot/arch/sparc64/loader/main.c


/*
 * Copyright (c) 2005 Martin Decky
 * Copyright (c) 2006 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 "main.h" 
#include <printf.h>
#include "asm.h"
#include "_components.h"
#include <balloc.h>
#include <ofw.h>
#include <ofw_tree.h>
#include "ofwarch.h"
#include <align.h>
#include <macros.h>
#include <string.h>
 
bootinfo_t bootinfo;
 
component_t components[COMPONENTS];
 
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
 
/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */
uint8_t subarchitecture;
 
/**
 * mask of the MID field inside the ICBUS_CONFIG register shifted by
 * MID_SHIFT bits to the right
 */
uint16_t mid_mask;
 
/** Print version information. */
static void version_print(void)
{
    printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"
        "Copyright (c) 2006 HelenOS project\n",
        release, revision, timestamp);
}
 
/* the lowest ID (read from the VER register) of some US3 CPU model */
#define FIRST_US3_CPU   0x14
 
/* the greatest ID (read from the VER register) of some US3 CPU model */
#define LAST_US3_CPU    0x19
 
/* UltraSPARC IIIi processor implementation code */
#define US_IIIi_CODE    0x15
 
/**
 * Sets the global variables "subarchitecture" and "mid_mask" to
 * correct values.
 */
static void detect_subarchitecture(void)
{
    uint64_t v;
    asm volatile ("rdpr %%ver, %0\n" : "=r" (v));
   
    v = (v << 16) >> 48;
    if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {
        subarchitecture = SUBARCH_US3;
        if (v == US_IIIi_CODE)
            mid_mask = (1 << 5) - 1;
        else
            mid_mask = (1 << 10) - 1;
    } else if (v < FIRST_US3_CPU) {
        subarchitecture = SUBARCH_US;
        mid_mask = (1 << 5) - 1;
    } else {
        printf("\nThis CPU is not supported by HelenOS.");
    }
}
 
void bootstrap(void)
{
    void *base = (void *) KERNEL_VIRTUAL_ADDRESS;
    void *balloc_base;
    unsigned int top = 0;
    int i, j;
 
    version_print();
   
    detect_subarchitecture();
    init_components(components);
 
    if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
        printf("Error: unable to get start of physical memory.\n");
        halt();
    }
 
    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();
    }
 
    /*
     * SILO for some reason adds 0x400000 and subtracts
     * bootinfo.physmem_start to/from silo_ramdisk_image.
     * We just need plain physical address so we fix it up.
     */
    if (silo_ramdisk_image) {
        silo_ramdisk_image += bootinfo.physmem_start;
        silo_ramdisk_image -= 0x400000;
        /* Install 1:1 mapping for the ramdisk. */
        if (ofw_map((void *)((uintptr_t) silo_ramdisk_image),
            (void *)((uintptr_t) silo_ramdisk_image),
            silo_ramdisk_size, -1) != 0) {
            printf("Failed to map ramdisk.\n");
            halt();
        }
    }
   
    printf("\nSystem info\n");
    printf(" memory: %dM starting at %P\n",
        bootinfo.memmap.total >> 20, bootinfo.physmem_start);
 
    printf("\nMemory statistics\n");
    printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);
    printf(" %P: boot info structure\n", &bootinfo);
   
    /*
     * Figure out destination address for each component.
     * In this phase, we don't copy the components yet because we want to
     * to be careful not to overwrite anything, especially the components
     * which haven't been copied yet.
     */
    bootinfo.taskmap.count = 0;
    for (i = 0; i < COMPONENTS; i++) {
        printf(" %P: %s image (size %d bytes)\n", components[i].start,
            components[i].name, components[i].size);
        top = ALIGN_UP(top, PAGE_SIZE);
        if (i > 0) {
            if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
                printf("Skipping superfluous components.\n");
                break;
            }
            bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
                base + top;
            bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
                components[i].size;
            bootinfo.taskmap.count++;
        }
        top += components[i].size;
    }
 
    j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */
 
    if (silo_ramdisk_image) {
        /* Treat the ramdisk as the last bootinfo task. */
        if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
            printf("Skipping ramdisk.\n");
            goto skip_ramdisk;
        }
        top = ALIGN_UP(top, PAGE_SIZE);
        bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
            base + top;
        bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
            silo_ramdisk_size;
        bootinfo.taskmap.count++;
        printf("\nCopying ramdisk...");
        /*
         * Claim and map the whole ramdisk as it may exceed the area
         * given to us by SILO.
         */
        (void) ofw_claim_phys(base + top, silo_ramdisk_size);
        (void) ofw_map(bootinfo.physmem_start + base + top, base + top,
            silo_ramdisk_size, -1);
        /*
         * FIXME If the source and destination overlap, it may be
         * desirable to copy in reverse order, depending on how the two
         * regions overlap.
         */
        memcpy(base + top, (void *)((uintptr_t)silo_ramdisk_image),
            silo_ramdisk_size);
        printf("done.\n");
        top += silo_ramdisk_size;
    }
skip_ramdisk:
 
    /*
     * Now we can proceed to copy the components. We do it in reverse order
     * so that we don't overwrite anything even if the components overlap
     * with base.
     */
    printf("\nCopying bootinfo tasks\n");
    for (i = COMPONENTS - 1; i > 0; i--, j--) {
        printf(" %s...", components[i].name);
 
        /*
         * At this point, we claim the physical memory that we are
         * going to use. We should be safe in case of the virtual
         * address space because the OpenFirmware, according to its
         * SPARC binding, should restrict its use of virtual memory
         * to addresses from [0xffd00000; 0xffefffff] and
         * [0xfe000000; 0xfeffffff].
         *
         * XXX We don't map this piece of memory. We simply rely on
         *     SILO to have it done for us already in this case.
         */
        (void) ofw_claim_phys(bootinfo.physmem_start +
            bootinfo.taskmap.tasks[j].addr,
            ALIGN_UP(components[i].size, PAGE_SIZE));
           
        memcpy((void *)bootinfo.taskmap.tasks[j].addr,
            components[i].start, components[i].size);
        printf("done.\n");
    }
 
    printf("\nCopying kernel...");
    (void) ofw_claim_phys(bootinfo.physmem_start + base,
        ALIGN_UP(components[0].size, PAGE_SIZE));
    memcpy(base, components[0].start, components[0].size);
    printf("done.\n");
 
    /*
     * Claim and map the physical memory for the boot allocator.
     * Initialize the boot allocator.
     */
    balloc_base = base + ALIGN_UP(top, PAGE_SIZE);
    (void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,
        BALLOC_MAX_SIZE);
    (void) ofw_map(bootinfo.physmem_start + balloc_base, balloc_base,
        BALLOC_MAX_SIZE, -1);
    balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);
 
    printf("\nCanonizing OpenFirmware device tree...");
    bootinfo.ofw_root = ofw_tree_build();
    printf("done.\n");
 
#ifdef CONFIG_AP
    printf("\nChecking for secondary processors...");
    if (!ofw_cpu())
        printf("Error: unable to get CPU properties\n");
    printf("done.\n");
#endif
 
    ofw_setup_palette();
 
    printf("\nBooting the kernel...\n");
    jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
        bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo,
        sizeof(bootinfo));
}
 

Rev 4341	Rev 4342
1	/*	1	/*
2	* Copyright (c) 2005 Martin Decky	2	* Copyright (c) 2005 Martin Decky
3	* Copyright (c) 2006 Jakub Jermar	3	* Copyright (c) 2006 Jakub Jermar
4	* All rights reserved.	4	* All rights reserved.
5	*	5	*
6	* Redistribution and use in source and binary forms, with or without	6	* Redistribution and use in source and binary forms, with or without
7	* modification, are permitted provided that the following conditions	7	* modification, are permitted provided that the following conditions
8	* are met:	8	* are met:
9	*	9	*
10	* - Redistributions of source code must retain the above copyright	10	* - Redistributions of source code must retain the above copyright
11	* notice, this list of conditions and the following disclaimer.	11	* notice, this list of conditions and the following disclaimer.
12	* - Redistributions in binary form must reproduce the above copyright	12	* - Redistributions in binary form must reproduce the above copyright
13	* notice, this list of conditions and the following disclaimer in the	13	* notice, this list of conditions and the following disclaimer in the
14	* documentation and/or other materials provided with the distribution.	14	* documentation and/or other materials provided with the distribution.
15	* - The name of the author may not be used to endorse or promote products	15	* - The name of the author may not be used to endorse or promote products
16	* derived from this software without specific prior written permission.	16	* derived from this software without specific prior written permission.
17	*	17	*
18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/	28	*/
29		29
30	#include "main.h"	30	#include "main.h"
31	#include <printf.h>	31	#include <printf.h>
32	#include "asm.h"	32	#include "asm.h"
33	#include "_components.h"	33	#include "_components.h"
34	#include <balloc.h>	34	#include <balloc.h>
35	#include <ofw.h>	35	#include <ofw.h>
36	#include <ofw_tree.h>	36	#include <ofw_tree.h>
37	#include "ofwarch.h"	37	#include "ofwarch.h"
38	#include <align.h>	38	#include <align.h>
-		39	#include <macros.h>
-		40	#include <string.h>
39		41
40	bootinfo_t bootinfo;	42	bootinfo_t bootinfo;
41		43
42	component_t components[COMPONENTS];	44	component_t components[COMPONENTS];
43		45
44	char *release = RELEASE;	46	char *release = STRING(RELEASE);
45		47
46	#ifdef REVISION	48	#ifdef REVISION
47	char *revision = ", revision " REVISION;	49	char *revision = ", revision " STRING(REVISION);
48	#else	50	#else
49	char *revision = "";	51	char *revision = "";
50	#endif	52	#endif
51		53
52	#ifdef TIMESTAMP	54	#ifdef TIMESTAMP
53	char *timestamp = "\nBuilt on " TIMESTAMP;	55	char *timestamp = "\nBuilt on " STRING(TIMESTAMP);
54	#else	56	#else
55	char *timestamp = "";	57	char *timestamp = "";
56	#endif	58	#endif
57		59
58	/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */	60	/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */
59	uint8_t subarchitecture;	61	uint8_t subarchitecture;
60		62
61	/**	63	/**
62	* mask of the MID field inside the ICBUS_CONFIG register shifted by	64	* mask of the MID field inside the ICBUS_CONFIG register shifted by
63	* MID_SHIFT bits to the right	65	* MID_SHIFT bits to the right
64	*/	66	*/
65	uint16_t mid_mask;	67	uint16_t mid_mask;
66		68
67	/** Print version information. */	69	/** Print version information. */
68	static void version_print(void)	70	static void version_print(void)
69	{	71	{
70	printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"	72	printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"
71	"Copyright (c) 2006 HelenOS project\n",	73	"Copyright (c) 2006 HelenOS project\n",
72	release, revision, timestamp);	74	release, revision, timestamp);
73	}	75	}
74		76
75	/* the lowest ID (read from the VER register) of some US3 CPU model */	77	/* the lowest ID (read from the VER register) of some US3 CPU model */
76	#define FIRST_US3_CPU 0x14	78	#define FIRST_US3_CPU 0x14
77		79
78	/* the greatest ID (read from the VER register) of some US3 CPU model */	80	/* the greatest ID (read from the VER register) of some US3 CPU model */
79	#define LAST_US3_CPU 0x19	81	#define LAST_US3_CPU 0x19
80		82
81	/* UltraSPARC IIIi processor implementation code */	83	/* UltraSPARC IIIi processor implementation code */
82	#define US_IIIi_CODE 0x15	84	#define US_IIIi_CODE 0x15
83		85
84	/**	86	/**
85	* Sets the global variables "subarchitecture" and "mid_mask" to	87	* Sets the global variables "subarchitecture" and "mid_mask" to
86	* correct values.	88	* correct values.
87	*/	89	*/
88	static void detect_subarchitecture(void)	90	static void detect_subarchitecture(void)
89	{	91	{
90	uint64_t v;	92	uint64_t v;
91	asm volatile ("rdpr %%ver, %0\n" : "=r" (v));	93	asm volatile ("rdpr %%ver, %0\n" : "=r" (v));
92		94
93	v = (v << 16) >> 48;	95	v = (v << 16) >> 48;
94	if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {	96	if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {
95	subarchitecture = SUBARCH_US3;	97	subarchitecture = SUBARCH_US3;
96	if (v == US_IIIi_CODE)	98	if (v == US_IIIi_CODE)
97	mid_mask = (1 << 5) - 1;	99	mid_mask = (1 << 5) - 1;
98	else	100	else
99	mid_mask = (1 << 10) - 1;	101	mid_mask = (1 << 10) - 1;
100	} else if (v < FIRST_US3_CPU) {	102	} else if (v < FIRST_US3_CPU) {
101	subarchitecture = SUBARCH_US;	103	subarchitecture = SUBARCH_US;
102	mid_mask = (1 << 5) - 1;	104	mid_mask = (1 << 5) - 1;
103	} else {	105	} else {
104	printf("\nThis CPU is not supported by HelenOS.");	106	printf("\nThis CPU is not supported by HelenOS.");
105	}	107	}
106	}	108	}
107		109
108	void bootstrap(void)	110	void bootstrap(void)
109	{	111	{
110	void base = (void ) KERNEL_VIRTUAL_ADDRESS;	112	void base = (void ) KERNEL_VIRTUAL_ADDRESS;
111	void *balloc_base;	113	void *balloc_base;
112	unsigned int top = 0;	114	unsigned int top = 0;
113	int i, j;	115	int i, j;
114		116
115	version_print();	117	version_print();
116		118
117	detect_subarchitecture();	119	detect_subarchitecture();
118	init_components(components);	120	init_components(components);
119		121
120	if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {	122	if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
121	printf("Error: unable to get start of physical memory.\n");	123	printf("Error: unable to get start of physical memory.\n");
122	halt();	124	halt();
123	}	125	}
124		126
125	if (!ofw_memmap(&bootinfo.memmap)) {	127	if (!ofw_memmap(&bootinfo.memmap)) {
126	printf("Error: unable to get memory map, halting.\n");	128	printf("Error: unable to get memory map, halting.\n");
127	halt();	129	halt();
128	}	130	}
129		131
130	if (bootinfo.memmap.total == 0) {	132	if (bootinfo.memmap.total == 0) {
131	printf("Error: no memory detected, halting.\n");	133	printf("Error: no memory detected, halting.\n");
132	halt();	134	halt();
133	}	135	}
134		136
135	/*	137	/*
136	* SILO for some reason adds 0x400000 and subtracts	138	* SILO for some reason adds 0x400000 and subtracts
137	* bootinfo.physmem_start to/from silo_ramdisk_image.	139	* bootinfo.physmem_start to/from silo_ramdisk_image.
138	* We just need plain physical address so we fix it up.	140	* We just need plain physical address so we fix it up.
139	*/	141	*/
140	if (silo_ramdisk_image) {	142	if (silo_ramdisk_image) {
141	silo_ramdisk_image += bootinfo.physmem_start;	143	silo_ramdisk_image += bootinfo.physmem_start;
142	silo_ramdisk_image -= 0x400000;	144	silo_ramdisk_image -= 0x400000;
143	/* Install 1:1 mapping for the ramdisk. */	145	/* Install 1:1 mapping for the ramdisk. */
144	if (ofw_map((void *)((uintptr_t) silo_ramdisk_image),	146	if (ofw_map((void *)((uintptr_t) silo_ramdisk_image),
145	(void *)((uintptr_t) silo_ramdisk_image),	147	(void *)((uintptr_t) silo_ramdisk_image),
146	silo_ramdisk_size, -1) != 0) {	148	silo_ramdisk_size, -1) != 0) {
147	printf("Failed to map ramdisk.\n");	149	printf("Failed to map ramdisk.\n");
148	halt();	150	halt();
149	}	151	}
150	}	152	}
151		153
152	printf("\nSystem info\n");	154	printf("\nSystem info\n");
153	printf(" memory: %dM starting at %P\n",	155	printf(" memory: %dM starting at %P\n",
154	bootinfo.memmap.total >> 20, bootinfo.physmem_start);	156	bootinfo.memmap.total >> 20, bootinfo.physmem_start);
155		157
156	printf("\nMemory statistics\n");	158	printf("\nMemory statistics\n");
157	printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);	159	printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);
158	printf(" %P: boot info structure\n", &bootinfo);	160	printf(" %P: boot info structure\n", &bootinfo);
159		161
160	/*	162	/*
161	* Figure out destination address for each component.	163	* Figure out destination address for each component.
162	* In this phase, we don't copy the components yet because we want to	164	* In this phase, we don't copy the components yet because we want to
163	* to be careful not to overwrite anything, especially the components	165	* to be careful not to overwrite anything, especially the components
164	* which haven't been copied yet.	166	* which haven't been copied yet.
165	*/	167	*/
166	bootinfo.taskmap.count = 0;	168	bootinfo.taskmap.count = 0;
167	for (i = 0; i < COMPONENTS; i++) {	169	for (i = 0; i < COMPONENTS; i++) {
168	printf(" %P: %s image (size %d bytes)\n", components[i].start,	170	printf(" %P: %s image (size %d bytes)\n", components[i].start,
169	components[i].name, components[i].size);	171	components[i].name, components[i].size);
170	top = ALIGN_UP(top, PAGE_SIZE);	172	top = ALIGN_UP(top, PAGE_SIZE);
171	if (i > 0) {	173	if (i > 0) {
172	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {	174	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
173	printf("Skipping superfluous components.\n");	175	printf("Skipping superfluous components.\n");
174	break;	176	break;
175	}	177	}
176	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =	178	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
177	base + top;	179	base + top;
178	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =	180	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
179	components[i].size;	181	components[i].size;
180	bootinfo.taskmap.count++;	182	bootinfo.taskmap.count++;
181	}	183	}
182	top += components[i].size;	184	top += components[i].size;
183	}	185	}
184		186
185	j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */	187	j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */
186		188
187	if (silo_ramdisk_image) {	189	if (silo_ramdisk_image) {
188	/* Treat the ramdisk as the last bootinfo task. */	190	/* Treat the ramdisk as the last bootinfo task. */
189	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {	191	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
190	printf("Skipping ramdisk.\n");	192	printf("Skipping ramdisk.\n");
191	goto skip_ramdisk;	193	goto skip_ramdisk;
192	}	194	}
193	top = ALIGN_UP(top, PAGE_SIZE);	195	top = ALIGN_UP(top, PAGE_SIZE);
194	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =	196	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
195	base + top;	197	base + top;
196	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =	198	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
197	silo_ramdisk_size;	199	silo_ramdisk_size;
198	bootinfo.taskmap.count++;	200	bootinfo.taskmap.count++;
199	printf("\nCopying ramdisk...");	201	printf("\nCopying ramdisk...");
200	/*	202	/*
201	* Claim and map the whole ramdisk as it may exceed the area	203	* Claim and map the whole ramdisk as it may exceed the area
202	* given to us by SILO.	204	* given to us by SILO.
203	*/	205	*/
204	(void) ofw_claim_phys(base + top, silo_ramdisk_size);	206	(void) ofw_claim_phys(base + top, silo_ramdisk_size);
205	(void) ofw_map(bootinfo.physmem_start + base + top, base + top,	207	(void) ofw_map(bootinfo.physmem_start + base + top, base + top,
206	silo_ramdisk_size, -1);	208	silo_ramdisk_size, -1);
207	/*	209	/*
208	* FIXME If the source and destination overlap, it may be	210	* FIXME If the source and destination overlap, it may be
209	* desirable to copy in reverse order, depending on how the two	211	* desirable to copy in reverse order, depending on how the two
210	* regions overlap.	212	* regions overlap.
211	*/	213	*/
212	memcpy(base + top, (void *)((uintptr_t)silo_ramdisk_image),	214	memcpy(base + top, (void *)((uintptr_t)silo_ramdisk_image),
213	silo_ramdisk_size);	215	silo_ramdisk_size);
214	printf("done.\n");	216	printf("done.\n");
215	top += silo_ramdisk_size;	217	top += silo_ramdisk_size;
216	}	218	}
217	skip_ramdisk:	219	skip_ramdisk:
218		220
219	/*	221	/*
220	* Now we can proceed to copy the components. We do it in reverse order	222	* Now we can proceed to copy the components. We do it in reverse order
221	* so that we don't overwrite anything even if the components overlap	223	* so that we don't overwrite anything even if the components overlap
222	* with base.	224	* with base.
223	*/	225	*/
224	printf("\nCopying bootinfo tasks\n");	226	printf("\nCopying bootinfo tasks\n");
225	for (i = COMPONENTS - 1; i > 0; i--, j--) {	227	for (i = COMPONENTS - 1; i > 0; i--, j--) {
226	printf(" %s...", components[i].name);	228	printf(" %s...", components[i].name);
227		229
228	/*	230	/*
229	* At this point, we claim the physical memory that we are	231	* At this point, we claim the physical memory that we are
230	* going to use. We should be safe in case of the virtual	232	* going to use. We should be safe in case of the virtual
231	* address space because the OpenFirmware, according to its	233	* address space because the OpenFirmware, according to its
232	* SPARC binding, should restrict its use of virtual memory	234	* SPARC binding, should restrict its use of virtual memory
233	* to addresses from [0xffd00000; 0xffefffff] and	235	* to addresses from [0xffd00000; 0xffefffff] and
234	* [0xfe000000; 0xfeffffff].	236	* [0xfe000000; 0xfeffffff].
235	*	237	*
236	* XXX We don't map this piece of memory. We simply rely on	238	* XXX We don't map this piece of memory. We simply rely on
237	* SILO to have it done for us already in this case.	239	* SILO to have it done for us already in this case.
238	*/	240	*/
239	(void) ofw_claim_phys(bootinfo.physmem_start +	241	(void) ofw_claim_phys(bootinfo.physmem_start +
240	bootinfo.taskmap.tasks[j].addr,	242	bootinfo.taskmap.tasks[j].addr,
241	ALIGN_UP(components[i].size, PAGE_SIZE));	243	ALIGN_UP(components[i].size, PAGE_SIZE));
242		244
243	memcpy((void *)bootinfo.taskmap.tasks[j].addr,	245	memcpy((void *)bootinfo.taskmap.tasks[j].addr,
244	components[i].start, components[i].size);	246	components[i].start, components[i].size);
245	printf("done.\n");	247	printf("done.\n");
246	}	248	}
247		249
248	printf("\nCopying kernel...");	250	printf("\nCopying kernel...");
249	(void) ofw_claim_phys(bootinfo.physmem_start + base,	251	(void) ofw_claim_phys(bootinfo.physmem_start + base,
250	ALIGN_UP(components[0].size, PAGE_SIZE));	252	ALIGN_UP(components[0].size, PAGE_SIZE));
251	memcpy(base, components[0].start, components[0].size);	253	memcpy(base, components[0].start, components[0].size);
252	printf("done.\n");	254	printf("done.\n");
253		255
254	/*	256	/*
255	* Claim and map the physical memory for the boot allocator.	257	* Claim and map the physical memory for the boot allocator.
256	* Initialize the boot allocator.	258	* Initialize the boot allocator.
257	*/	259	*/
258	balloc_base = base + ALIGN_UP(top, PAGE_SIZE);	260	balloc_base = base + ALIGN_UP(top, PAGE_SIZE);
259	(void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,	261	(void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,
260	BALLOC_MAX_SIZE);	262	BALLOC_MAX_SIZE);
261	(void) ofw_map(bootinfo.physmem_start + balloc_base, balloc_base,	263	(void) ofw_map(bootinfo.physmem_start + balloc_base, balloc_base,
262	BALLOC_MAX_SIZE, -1);	264	BALLOC_MAX_SIZE, -1);
263	balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);	265	balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);
264		266
265	printf("\nCanonizing OpenFirmware device tree...");	267	printf("\nCanonizing OpenFirmware device tree...");
266	bootinfo.ofw_root = ofw_tree_build();	268	bootinfo.ofw_root = ofw_tree_build();
267	printf("done.\n");	269	printf("done.\n");
268		270
269	#ifdef CONFIG_AP	271	#ifdef CONFIG_AP
270	printf("\nChecking for secondary processors...");	272	printf("\nChecking for secondary processors...");
271	if (!ofw_cpu())	273	if (!ofw_cpu())
272	printf("Error: unable to get CPU properties\n");	274	printf("Error: unable to get CPU properties\n");
273	printf("done.\n");	275	printf("done.\n");
274	#endif	276	#endif
275		277
276	setup_palette();	278	ofw_setup_palette();
277		279
278	printf("\nBooting the kernel...\n");	280	printf("\nBooting the kernel...\n");
279	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,	281	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
280	bootinfo.physmem_start \| BSP_PROCESSOR, &bootinfo,	282	bootinfo.physmem_start \| BSP_PROCESSOR, &bootinfo,
281	sizeof(bootinfo));	283	sizeof(bootinfo));
282	}	284	}
283		285

Subversion Repositories HelenOS

(root)/branches/dynload/boot/arch/sparc64/loader/main.c @ 4345 – Rev 4341 → 4342