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>
 
bootinfo_t bootinfo;
 
component_t components[COMPONENTS];
 
char *release = RELEASE;
 
#ifdef REVISION
    char *revision = ", revision " REVISION;
#else
    char *revision = "";
#endif
 
#ifdef TIMESTAMP
    char *timestamp = "\nBuilt on " 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(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(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_SMP
    printf("\nChecking for secondary processors...");
    if (!ofw_cpu())
        printf("Error: unable to get CPU properties\n");
    printf("done.\n");
#endif
 
    printf("\nBooting the kernel...\n");
    jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
        bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo,
        sizeof(bootinfo));
}
 
 

Rev 3403	Rev 3674
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		39
40	bootinfo_t bootinfo;	40	bootinfo_t bootinfo;
-		41
41	component_t components[COMPONENTS];	42	component_t components[COMPONENTS];
42		43
43	char *release = RELEASE;	44	char *release = RELEASE;
44		45
45	#ifdef REVISION	46	#ifdef REVISION
46	char *revision = ", revision " REVISION;	47	char *revision = ", revision " REVISION;
47	#else	48	#else
48	char *revision = "";	49	char *revision = "";
49	#endif	50	#endif
50		51
51	#ifdef TIMESTAMP	52	#ifdef TIMESTAMP
52	char *timestamp = "\nBuilt on " TIMESTAMP;	53	char *timestamp = "\nBuilt on " TIMESTAMP;
53	#else	54	#else
54	char *timestamp = "";	55	char *timestamp = "";
55	#endif	56	#endif
56		57
-		58	/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */
-		59	uint8_t subarchitecture;
-		60
-		61	/**
-		62	* mask of the MID field inside the ICBUS_CONFIG register shifted by
-		63	* MID_SHIFT bits to the right
-		64	*/
-		65	uint16_t mid_mask;
-		66
57	/** Print version information. */	67	/** Print version information. */
58	static void version_print(void)	68	static void version_print(void)
59	{	69	{
60	printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"	70	printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"
61	"Copyright (c) 2006 HelenOS project\n",	71	"Copyright (c) 2006 HelenOS project\n",
62	release, revision, timestamp);	72	release, revision, timestamp);
63	}	73	}
64		74
-		75	/* the lowest ID (read from the VER register) of some US3 CPU model */
-		76	#define FIRST_US3_CPU 0x14
-		77
-		78	/* the greatest ID (read from the VER register) of some US3 CPU model */
-		79	#define LAST_US3_CPU 0x19
-		80
-		81	/* UltraSPARC IIIi processor implementation code */
-		82	#define US_IIIi_CODE 0x15
-		83
-		84	/**
-		85	* Sets the global variables "subarchitecture" and "mid_mask" to
-		86	* correct values.
-		87	*/
-		88	static void detect_subarchitecture(void)
-		89	{
-		90	uint64_t v;
-		91	asm volatile ("rdpr %%ver, %0\n" : "=r" (v));
-		92
-		93	v = (v << 16) >> 48;
-		94	if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {
-		95	subarchitecture = SUBARCH_US3;
-		96	if (v == US_IIIi_CODE)
-		97	mid_mask = (1 << 5) - 1;
-		98	else
-		99	mid_mask = (1 << 10) - 1;
-		100	} else if (v < FIRST_US3_CPU) {
-		101	subarchitecture = SUBARCH_US;
-		102	mid_mask = (1 << 5) - 1;
-		103	} else {
-		104	printf("\nThis CPU is not supported by HelenOS.");
-		105	}
-		106	}
-		107
65	void bootstrap(void)	108	void bootstrap(void)
66	{	109	{
67	void base = (void ) KERNEL_VIRTUAL_ADDRESS;	110	void base = (void ) KERNEL_VIRTUAL_ADDRESS;
68	void *balloc_base;	111	void *balloc_base;
69	unsigned int top = 0;	112	unsigned int top = 0;
70	int i, j;	113	int i, j;
71		114
72	version_print();	115	version_print();
73		116
-		117	detect_subarchitecture();
74	init_components(components);	118	init_components(components);
75		119
76	if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {	120	if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
77	printf("Error: unable to get start of physical memory.\n");	121	printf("Error: unable to get start of physical memory.\n");
78	halt();	122	halt();
79	}	123	}
80		124
81	if (!ofw_memmap(&bootinfo.memmap)) {	125	if (!ofw_memmap(&bootinfo.memmap)) {
82	printf("Error: unable to get memory map, halting.\n");	126	printf("Error: unable to get memory map, halting.\n");
83	halt();	127	halt();
84	}	128	}
85		129
86	if (bootinfo.memmap.total == 0) {	130	if (bootinfo.memmap.total == 0) {
87	printf("Error: no memory detected, halting.\n");	131	printf("Error: no memory detected, halting.\n");
88	halt();	132	halt();
89	}	133	}
90		134
91	/*	135	/*
92	* SILO for some reason adds 0x400000 and subtracts	136	* SILO for some reason adds 0x400000 and subtracts
93	* bootinfo.physmem_start to/from silo_ramdisk_image.	137	* bootinfo.physmem_start to/from silo_ramdisk_image.
94	* We just need plain physical address so we fix it up.	138	* We just need plain physical address so we fix it up.
95	*/	139	*/
96	if (silo_ramdisk_image) {	140	if (silo_ramdisk_image) {
97	silo_ramdisk_image += bootinfo.physmem_start;	141	silo_ramdisk_image += bootinfo.physmem_start;
98	silo_ramdisk_image -= 0x400000;	142	silo_ramdisk_image -= 0x400000;
99	/* Install 1:1 mapping for the ramdisk. */	143	/* Install 1:1 mapping for the ramdisk. */
100	if (ofw_map((void *)((uintptr_t)silo_ramdisk_image),	144	if (ofw_map((void *)((uintptr_t)silo_ramdisk_image),
101	(void *)((uintptr_t)silo_ramdisk_image),	145	(void *)((uintptr_t)silo_ramdisk_image),
102	silo_ramdisk_size, -1) != 0) {	146	silo_ramdisk_size, -1) != 0) {
103	printf("Failed to map ramdisk.\n");	147	printf("Failed to map ramdisk.\n");
104	halt();	148	halt();
105	}	149	}
106	}	150	}
107		151
108	printf("\nSystem info\n");	152	printf("\nSystem info\n");
109	printf(" memory: %dM starting at %P\n",	153	printf(" memory: %dM starting at %P\n",
110	bootinfo.memmap.total >> 20, bootinfo.physmem_start);	154	bootinfo.memmap.total >> 20, bootinfo.physmem_start);
111		155
112	printf("\nMemory statistics\n");	156	printf("\nMemory statistics\n");
113	printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);	157	printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);
114	printf(" %P: boot info structure\n", &bootinfo);	158	printf(" %P: boot info structure\n", &bootinfo);
115		159
116	/*	160	/*
117	* Figure out destination address for each component.	161	* Figure out destination address for each component.
118	* In this phase, we don't copy the components yet because we want to	162	* In this phase, we don't copy the components yet because we want to
119	* to be careful not to overwrite anything, especially the components	163	* to be careful not to overwrite anything, especially the components
120	* which haven't been copied yet.	164	* which haven't been copied yet.
121	*/	165	*/
122	bootinfo.taskmap.count = 0;	166	bootinfo.taskmap.count = 0;
123	for (i = 0; i < COMPONENTS; i++) {	167	for (i = 0; i < COMPONENTS; i++) {
124	printf(" %P: %s image (size %d bytes)\n", components[i].start,	168	printf(" %P: %s image (size %d bytes)\n", components[i].start,
125	components[i].name, components[i].size);	169	components[i].name, components[i].size);
126	top = ALIGN_UP(top, PAGE_SIZE);	170	top = ALIGN_UP(top, PAGE_SIZE);
127	if (i > 0) {	171	if (i > 0) {
128	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {	172	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
129	printf("Skipping superfluous components.\n");	173	printf("Skipping superfluous components.\n");
130	break;	174	break;
131	}	175	}
132	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =	176	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
133	base + top;	177	base + top;
134	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =	178	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
135	components[i].size;	179	components[i].size;
136	bootinfo.taskmap.count++;	180	bootinfo.taskmap.count++;
137	}	181	}
138	top += components[i].size;	182	top += components[i].size;
139	}	183	}
140		184
141	j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */	185	j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */
142		186
143	if (silo_ramdisk_image) {	187	if (silo_ramdisk_image) {
144	/* Treat the ramdisk as the last bootinfo task. */	188	/* Treat the ramdisk as the last bootinfo task. */
145	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {	189	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
146	printf("Skipping ramdisk.\n");	190	printf("Skipping ramdisk.\n");
147	goto skip_ramdisk;	191	goto skip_ramdisk;
148	}	192	}
149	top = ALIGN_UP(top, PAGE_SIZE);	193	top = ALIGN_UP(top, PAGE_SIZE);
150	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =	194	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
151	base + top;	195	base + top;
152	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =	196	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
153	silo_ramdisk_size;	197	silo_ramdisk_size;
154	bootinfo.taskmap.count++;	198	bootinfo.taskmap.count++;
155	printf("\nCopying ramdisk...");	199	printf("\nCopying ramdisk...");
156	/*	200	/*
157	* Claim and map the whole ramdisk as it may exceed the area	201	* Claim and map the whole ramdisk as it may exceed the area
158	* given to us by SILO.	202	* given to us by SILO.
159	*/	203	*/
160	(void) ofw_claim_phys(base + top, silo_ramdisk_size);	204	(void) ofw_claim_phys(base + top, silo_ramdisk_size);
161	(void) ofw_map(base + top, base + top, silo_ramdisk_size, -1);	205	(void) ofw_map(base + top, base + top, silo_ramdisk_size, -1);
162	/*	206	/*
163	* FIXME If the source and destination overlap, it may be	207	* FIXME If the source and destination overlap, it may be
164	* desirable to copy in reverse order, depending on how the two	208	* desirable to copy in reverse order, depending on how the two
165	* regions overlap.	209	* regions overlap.
166	*/	210	*/
167	memcpy(base + top, (void *)((uintptr_t)silo_ramdisk_image),	211	memcpy(base + top, (void *)((uintptr_t)silo_ramdisk_image),
168	silo_ramdisk_size);	212	silo_ramdisk_size);
169	printf("done.\n");	213	printf("done.\n");
170	top += silo_ramdisk_size;	214	top += silo_ramdisk_size;
171	}	215	}
172	skip_ramdisk:	216	skip_ramdisk:
173		217
174	/*	218	/*
175	* Now we can proceed to copy the components. We do it in reverse order	219	* Now we can proceed to copy the components. We do it in reverse order
176	* so that we don't overwrite anything even if the components overlap	220	* so that we don't overwrite anything even if the components overlap
177	* with base.	221	* with base.
178	*/	222	*/
179	printf("\nCopying bootinfo tasks\n");	223	printf("\nCopying bootinfo tasks\n");
180	for (i = COMPONENTS - 1; i > 0; i--, j--) {	224	for (i = COMPONENTS - 1; i > 0; i--, j--) {
181	printf(" %s...", components[i].name);	225	printf(" %s...", components[i].name);
182		226
183	/*	227	/*
184	* At this point, we claim the physical memory that we are	228	* At this point, we claim the physical memory that we are
185	* going to use. We should be safe in case of the virtual	229	* going to use. We should be safe in case of the virtual
186	* address space because the OpenFirmware, according to its	230	* address space because the OpenFirmware, according to its
187	* SPARC binding, should restrict its use of virtual memory	231	* SPARC binding, should restrict its use of virtual memory
188	* to addresses from [0xffd00000; 0xffefffff] and	232	* to addresses from [0xffd00000; 0xffefffff] and
189	* [0xfe000000; 0xfeffffff].	233	* [0xfe000000; 0xfeffffff].
190	*	234	*
191	* XXX We don't map this piece of memory. We simply rely on	235	* XXX We don't map this piece of memory. We simply rely on
192	* SILO to have it done for us already in this case.	236	* SILO to have it done for us already in this case.
193	*/	237	*/
194	(void) ofw_claim_phys(bootinfo.physmem_start +	238	(void) ofw_claim_phys(bootinfo.physmem_start +
195	bootinfo.taskmap.tasks[j].addr,	239	bootinfo.taskmap.tasks[j].addr,
196	ALIGN_UP(components[i].size, PAGE_SIZE));	240	ALIGN_UP(components[i].size, PAGE_SIZE));
197		241
198	memcpy((void *)bootinfo.taskmap.tasks[j].addr,	242	memcpy((void *)bootinfo.taskmap.tasks[j].addr,
199	components[i].start, components[i].size);	243	components[i].start, components[i].size);
200	printf("done.\n");	244	printf("done.\n");
201	}	245	}
202		246
203	printf("\nCopying kernel...");	247	printf("\nCopying kernel...");
204	(void) ofw_claim_phys(bootinfo.physmem_start + base,	248	(void) ofw_claim_phys(bootinfo.physmem_start + base,
205	ALIGN_UP(components[0].size, PAGE_SIZE));	249	ALIGN_UP(components[0].size, PAGE_SIZE));
206	memcpy(base, components[0].start, components[0].size);	250	memcpy(base, components[0].start, components[0].size);
207	printf("done.\n");	251	printf("done.\n");
208		252
209	/*	253	/*
210	* Claim and map the physical memory for the boot allocator.	254	* Claim and map the physical memory for the boot allocator.
211	* Initialize the boot allocator.	255	* Initialize the boot allocator.
212	*/	256	*/
213	balloc_base = base + ALIGN_UP(top, PAGE_SIZE);	257	balloc_base = base + ALIGN_UP(top, PAGE_SIZE);
214	(void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,	258	(void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,
215	BALLOC_MAX_SIZE);	259	BALLOC_MAX_SIZE);
216	(void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1);	260	(void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1);
217	balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);	261	balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);
218		262
219	printf("\nCanonizing OpenFirmware device tree...");	263	printf("\nCanonizing OpenFirmware device tree...");
220	bootinfo.ofw_root = ofw_tree_build();	264	bootinfo.ofw_root = ofw_tree_build();
221	printf("done.\n");	265	printf("done.\n");
222		266
223	#ifdef CONFIG_SMP	267	#ifdef CONFIG_SMP
224	printf("\nChecking for secondary processors...");	268	printf("\nChecking for secondary processors...");
225	if (!ofw_cpu())	269	if (!ofw_cpu())
226	printf("Error: unable to get CPU properties\n");	270	printf("Error: unable to get CPU properties\n");
227	printf("done.\n");	271	printf("done.\n");
228	#endif	272	#endif
229		273
230	printf("\nBooting the kernel...\n");	274	printf("\nBooting the kernel...\n");
231	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,	275	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
232	bootinfo.physmem_start \| BSP_PROCESSOR, &bootinfo,	276	bootinfo.physmem_start \| BSP_PROCESSOR, &bootinfo,
233	sizeof(bootinfo));	277	sizeof(bootinfo));
234	}	278	}
235		279
236		280

Subversion Repositories HelenOS

(root)/branches/dynload/boot/arch/sparc64/loader/main.c – Rev 3403 → 3674