WebSVN – HelenOS – Diff – /branches/sparc/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 <string.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);
        memmove(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 3618	Rev 3664
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 <string.h>	39	#include <string.h>
40		40
41	bootinfo_t bootinfo;	41	bootinfo_t bootinfo;
42		42
43	/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */	-
44	uint8_t subarchitecture;	-
45		-
46	component_t components[COMPONENTS];	43	component_t components[COMPONENTS];
47		44
48	char *release = RELEASE;	45	char *release = RELEASE;
49		46
50	#ifdef REVISION	47	#ifdef REVISION
51	char *revision = ", revision " REVISION;	48	char *revision = ", revision " REVISION;
52	#else	49	#else
53	char *revision = "";	50	char *revision = "";
54	#endif	51	#endif
55		52
56	#ifdef TIMESTAMP	53	#ifdef TIMESTAMP
57	char *timestamp = "\nBuilt on " TIMESTAMP;	54	char *timestamp = "\nBuilt on " TIMESTAMP;
58	#else	55	#else
59	char *timestamp = "";	56	char *timestamp = "";
60	#endif	57	#endif
61		58
-		59	/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */
-		60	uint8_t subarchitecture;
-		61
-		62	/**
-		63	* mask of the MID field inside the ICBUS_CONFIG register shifted by
-		64	* MID_SHIFT bits to the right
-		65	*/
-		66	uint16_t mid_mask;
-		67
62	/** Print version information. */	68	/** Print version information. */
63	static void version_print(void)	69	static void version_print(void)
64	{	70	{
65	printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"	71	printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"
66	"Copyright (c) 2006 HelenOS project\n",	72	"Copyright (c) 2006 HelenOS project\n",
67	release, revision, timestamp);	73	release, revision, timestamp);
68	}	74	}
69		75
70	/* the lowest ID (read from the VER register) of some US3 CPU model */	76	/* the lowest ID (read from the VER register) of some US3 CPU model */
71	#define FIRST_US3_CPU 0x14	77	#define FIRST_US3_CPU 0x14
72		78
73	/* the greatest ID (read from the VER register) of some US3 CPU model */	79	/* the greatest ID (read from the VER register) of some US3 CPU model */
74	#define LAST_US3_CPU 0x19	80	#define LAST_US3_CPU 0x19
-		81
-		82	/* UltraSPARC IIIi processor implementation code */
-		83	#define US_IIIi_CODE 0x15
75		84
76	/**	85	/**
77	* Sets the global variable "subarchitecture" to the correct value.	86	* Sets the global variables "subarchitecture" and "mid_mask" to
-		87	* correct values.
78	*/	88	*/
79	static void detect_subarchitecture(void)	89	static void detect_subarchitecture(void)
80	{	90	{
81	uint64_t v;	91	uint64_t v;
82	asm volatile ("rdpr %%ver, %0\n" : "=r" (v));	92	asm volatile ("rdpr %%ver, %0\n" : "=r" (v));
83		93
84	v = (v << 16) >> 48;	94	v = (v << 16) >> 48;
85	if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {	95	if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {
86	subarchitecture = SUBARCH_US3;	96	subarchitecture = SUBARCH_US3;
-		97	if (v == US_IIIi_CODE)
-		98	mid_mask = (1 << 5) - 1;
-		99	else
-		100	mid_mask = (1 << 10) - 1;
87	} else if (v < FIRST_US3_CPU) {	101	} else if (v < FIRST_US3_CPU) {
88	subarchitecture = SUBARCH_US;	102	subarchitecture = SUBARCH_US;
-		103	mid_mask = (1 << 5) - 1;
-		104	} else {
-		105	printf("\nThis CPU is not supported by HelenOS.");
89	}	106	}
90	}	107	}
91		108
92	void bootstrap(void)	109	void bootstrap(void)
93	{	110	{
94	void base = (void ) KERNEL_VIRTUAL_ADDRESS;	111	void base = (void ) KERNEL_VIRTUAL_ADDRESS;
95	void *balloc_base;	112	void *balloc_base;
96	unsigned int top = 0;	113	unsigned int top = 0;
97	int i, j;	114	int i, j;
98		115
99	version_print();	116	version_print();
100		117
101	detect_subarchitecture();	118	detect_subarchitecture();
102	init_components(components);	119	init_components(components);
103		120
104	if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {	121	if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
105	printf("Error: unable to get start of physical memory.\n");	122	printf("Error: unable to get start of physical memory.\n");
106	halt();	123	halt();
107	}	124	}
108		125
109	if (!ofw_memmap(&bootinfo.memmap)) {	126	if (!ofw_memmap(&bootinfo.memmap)) {
110	printf("Error: unable to get memory map, halting.\n");	127	printf("Error: unable to get memory map, halting.\n");
111	halt();	128	halt();
112	}	129	}
113		130
114	if (bootinfo.memmap.total == 0) {	131	if (bootinfo.memmap.total == 0) {
115	printf("Error: no memory detected, halting.\n");	132	printf("Error: no memory detected, halting.\n");
116	halt();	133	halt();
117	}	134	}
118		135
119	/*	136	/*
120	* SILO for some reason adds 0x400000 and subtracts	137	* SILO for some reason adds 0x400000 and subtracts
121	* bootinfo.physmem_start to/from silo_ramdisk_image.	138	* bootinfo.physmem_start to/from silo_ramdisk_image.
122	* We just need plain physical address so we fix it up.	139	* We just need plain physical address so we fix it up.
123	*/	140	*/
124	if (silo_ramdisk_image) {	141	if (silo_ramdisk_image) {
125	silo_ramdisk_image += bootinfo.physmem_start;	142	silo_ramdisk_image += bootinfo.physmem_start;
126	silo_ramdisk_image -= 0x400000;	143	silo_ramdisk_image -= 0x400000;
127	/* Install 1:1 mapping for the ramdisk. */	144	/* Install 1:1 mapping for the ramdisk. */
128	if (ofw_map((void *)((uintptr_t)silo_ramdisk_image),	145	if (ofw_map((void *)((uintptr_t)silo_ramdisk_image),
129	(void *)((uintptr_t)silo_ramdisk_image),	146	(void *)((uintptr_t)silo_ramdisk_image),
130	silo_ramdisk_size, -1) != 0) {	147	silo_ramdisk_size, -1) != 0) {
131	printf("Failed to map ramdisk.\n");	148	printf("Failed to map ramdisk.\n");
132	halt();	149	halt();
133	}	150	}
134	}	151	}
135		152
136	printf("\nSystem info\n");	153	printf("\nSystem info\n");
137	printf(" memory: %dM starting at %P\n",	154	printf(" memory: %dM starting at %P\n",
138	bootinfo.memmap.total >> 20, bootinfo.physmem_start);	155	bootinfo.memmap.total >> 20, bootinfo.physmem_start);
139		156
140	printf("\nMemory statistics\n");	157	printf("\nMemory statistics\n");
141	printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);	158	printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);
142	printf(" %P: boot info structure\n", &bootinfo);	159	printf(" %P: boot info structure\n", &bootinfo);
143		160
144	/*	161	/*
145	* Figure out destination address for each component.	162	* Figure out destination address for each component.
146	* In this phase, we don't copy the components yet because we want to	163	* In this phase, we don't copy the components yet because we want to
147	* to be careful not to overwrite anything, especially the components	164	* to be careful not to overwrite anything, especially the components
148	* which haven't been copied yet.	165	* which haven't been copied yet.
149	*/	166	*/
150	bootinfo.taskmap.count = 0;	167	bootinfo.taskmap.count = 0;
151	for (i = 0; i < COMPONENTS; i++) {	168	for (i = 0; i < COMPONENTS; i++) {
152	printf(" %P: %s image (size %d bytes)\n", components[i].start,	169	printf(" %P: %s image (size %d bytes)\n", components[i].start,
153	components[i].name, components[i].size);	170	components[i].name, components[i].size);
154	top = ALIGN_UP(top, PAGE_SIZE);	171	top = ALIGN_UP(top, PAGE_SIZE);
155	if (i > 0) {	172	if (i > 0) {
156	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {	173	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
157	printf("Skipping superfluous components.\n");	174	printf("Skipping superfluous components.\n");
158	break;	175	break;
159	}	176	}
160	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =	177	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
161	base + top;	178	base + top;
162	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =	179	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
163	components[i].size;	180	components[i].size;
164	bootinfo.taskmap.count++;	181	bootinfo.taskmap.count++;
165	}	182	}
166	top += components[i].size;	183	top += components[i].size;
167	}	184	}
168		185
169	j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */	186	j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */
170		187
171	if (silo_ramdisk_image) {	188	if (silo_ramdisk_image) {
172	/* Treat the ramdisk as the last bootinfo task. */	189	/* Treat the ramdisk as the last bootinfo task. */
173	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {	190	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
174	printf("Skipping ramdisk.\n");	191	printf("Skipping ramdisk.\n");
175	goto skip_ramdisk;	192	goto skip_ramdisk;
176	}	193	}
177	top = ALIGN_UP(top, PAGE_SIZE);	194	top = ALIGN_UP(top, PAGE_SIZE);
178	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =	195	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
179	base + top;	196	base + top;
180	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =	197	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
181	silo_ramdisk_size;	198	silo_ramdisk_size;
182	bootinfo.taskmap.count++;	199	bootinfo.taskmap.count++;
183	printf("\nCopying ramdisk...");	200	printf("\nCopying ramdisk...");
184	/*	201	/*
185	* Claim and map the whole ramdisk as it may exceed the area	202	* Claim and map the whole ramdisk as it may exceed the area
186	* given to us by SILO.	203	* given to us by SILO.
187	*/	204	*/
188	(void) ofw_claim_phys(base + top, silo_ramdisk_size);	205	(void) ofw_claim_phys(base + top, silo_ramdisk_size);
189	(void) ofw_map(base + top, base + top, silo_ramdisk_size, -1);	206	(void) ofw_map(base + top, base + top, silo_ramdisk_size, -1);
190	memmove(base + top, (void *)((uintptr_t)silo_ramdisk_image),	207	memmove(base + top, (void *)((uintptr_t)silo_ramdisk_image),
191	silo_ramdisk_size);	208	silo_ramdisk_size);
192	printf("done.\n");	209	printf("done.\n");
193	top += silo_ramdisk_size;	210	top += silo_ramdisk_size;
194	}	211	}
195	skip_ramdisk:	212	skip_ramdisk:
196		213
197	/*	214	/*
198	* Now we can proceed to copy the components. We do it in reverse order	215	* Now we can proceed to copy the components. We do it in reverse order
199	* so that we don't overwrite anything even if the components overlap	216	* so that we don't overwrite anything even if the components overlap
200	* with base.	217	* with base.
201	*/	218	*/
202	printf("\nCopying bootinfo tasks\n");	219	printf("\nCopying bootinfo tasks\n");
203	for (i = COMPONENTS - 1; i > 0; i--, j--) {	220	for (i = COMPONENTS - 1; i > 0; i--, j--) {
204	printf(" %s...", components[i].name);	221	printf(" %s...", components[i].name);
205		222
206	/*	223	/*
207	* At this point, we claim the physical memory that we are	224	* At this point, we claim the physical memory that we are
208	* going to use. We should be safe in case of the virtual	225	* going to use. We should be safe in case of the virtual
209	* address space because the OpenFirmware, according to its	226	* address space because the OpenFirmware, according to its
210	* SPARC binding, should restrict its use of virtual memory	227	* SPARC binding, should restrict its use of virtual memory
211	* to addresses from [0xffd00000; 0xffefffff] and	228	* to addresses from [0xffd00000; 0xffefffff] and
212	* [0xfe000000; 0xfeffffff].	229	* [0xfe000000; 0xfeffffff].
213	*	230	*
214	* XXX We don't map this piece of memory. We simply rely on	231	* XXX We don't map this piece of memory. We simply rely on
215	* SILO to have it done for us already in this case.	232	* SILO to have it done for us already in this case.
216	*/	233	*/
217	(void) ofw_claim_phys(bootinfo.physmem_start +	234	(void) ofw_claim_phys(bootinfo.physmem_start +
218	bootinfo.taskmap.tasks[j].addr,	235	bootinfo.taskmap.tasks[j].addr,
219	ALIGN_UP(components[i].size, PAGE_SIZE));	236	ALIGN_UP(components[i].size, PAGE_SIZE));
220		237
221	memcpy((void *)bootinfo.taskmap.tasks[j].addr,	238	memcpy((void *)bootinfo.taskmap.tasks[j].addr,
222	components[i].start, components[i].size);	239	components[i].start, components[i].size);
223	printf("done.\n");	240	printf("done.\n");
224	}	241	}
225		242
226	printf("\nCopying kernel...");	243	printf("\nCopying kernel...");
227	(void) ofw_claim_phys(bootinfo.physmem_start + base,	244	(void) ofw_claim_phys(bootinfo.physmem_start + base,
228	ALIGN_UP(components[0].size, PAGE_SIZE));	245	ALIGN_UP(components[0].size, PAGE_SIZE));
229	memcpy(base, components[0].start, components[0].size);	246	memcpy(base, components[0].start, components[0].size);
230	printf("done.\n");	247	printf("done.\n");
231		248
232	/*	249	/*
233	* Claim and map the physical memory for the boot allocator.	250	* Claim and map the physical memory for the boot allocator.
234	* Initialize the boot allocator.	251	* Initialize the boot allocator.
235	*/	252	*/
236	balloc_base = base + ALIGN_UP(top, PAGE_SIZE);	253	balloc_base = base + ALIGN_UP(top, PAGE_SIZE);
237	(void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,	254	(void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,
238	BALLOC_MAX_SIZE);	255	BALLOC_MAX_SIZE);
239	(void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1);	256	(void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1);
240	balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);	257	balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);
241		258
242	printf("\nCanonizing OpenFirmware device tree...");	259	printf("\nCanonizing OpenFirmware device tree...");
243	bootinfo.ofw_root = ofw_tree_build();	260	bootinfo.ofw_root = ofw_tree_build();
244	printf("done.\n");	261	printf("done.\n");
245		262
246	#ifdef CONFIG_SMP	263	#ifdef CONFIG_SMP
247	printf("\nChecking for secondary processors...");	264	printf("\nChecking for secondary processors...");
248	if (!ofw_cpu())	265	if (!ofw_cpu())
249	printf("Error: unable to get CPU properties\n");	266	printf("Error: unable to get CPU properties\n");
250	printf("done.\n");	267	printf("done.\n");
251	#endif	268	#endif
252		269
253	printf("\nBooting the kernel...\n");	270	printf("\nBooting the kernel...\n");
254	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,	271	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
255	bootinfo.physmem_start \| BSP_PROCESSOR, &bootinfo,	272	bootinfo.physmem_start \| BSP_PROCESSOR, &bootinfo,
256	sizeof(bootinfo));	273	sizeof(bootinfo));
257	}	274	}
258		275
259		276

Subversion Repositories HelenOS

(root)/branches/sparc/boot/arch/sparc64/loader/main.c – Rev 3618 → 3664