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;
 
/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */
uint8_t subarchitecture;
 
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
 
/** 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);
}
 
#define FIRST_US3_CPU 0x14
#define LAST_US3_CPU 0x19
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;
    } else if (v < FIRST_US3_CPU) {
        subarchitecture = SUBARCH_US;
    }
}
 
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 3502	Rev 3582
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
-		43	/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */
-		44	uint8_t subarchitecture;
-		45
42	component_t components[COMPONENTS];	46	component_t components[COMPONENTS];
43		47
44	char *release = RELEASE;	48	char *release = RELEASE;
45		49
46	#ifdef REVISION	50	#ifdef REVISION
47	char *revision = ", revision " REVISION;	51	char *revision = ", revision " REVISION;
48	#else	52	#else
49	char *revision = "";	53	char *revision = "";
50	#endif	54	#endif
51		55
52	#ifdef TIMESTAMP	56	#ifdef TIMESTAMP
53	char *timestamp = "\nBuilt on " TIMESTAMP;	57	char *timestamp = "\nBuilt on " TIMESTAMP;
54	#else	58	#else
55	char *timestamp = "";	59	char *timestamp = "";
56	#endif	60	#endif
57		61
58	/** Print version information. */	62	/** Print version information. */
59	static void version_print(void)	63	static void version_print(void)
60	{	64	{
61	printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"	65	printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"
62	"Copyright (c) 2006 HelenOS project\n",	66	"Copyright (c) 2006 HelenOS project\n",
63	release, revision, timestamp);	67	release, revision, timestamp);
64	}	68	}
65		69
-		70	#define FIRST_US3_CPU 0x14
-		71	#define LAST_US3_CPU 0x19
-		72	static void detect_subarchitecture(void)
-		73	{
-		74	uint64_t v;
-		75	asm volatile ("rdpr %%ver, %0\n" : "=r" (v));
-		76
-		77	v = (v << 16) >> 48;
-		78	if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {
-		79	subarchitecture = SUBARCH_US3;
-		80	} else if (v < FIRST_US3_CPU) {
-		81	subarchitecture = SUBARCH_US;
-		82	}
-		83	}
-		84
66	void bootstrap(void)	85	void bootstrap(void)
67	{	86	{
68	void base = (void ) KERNEL_VIRTUAL_ADDRESS;	87	void base = (void ) KERNEL_VIRTUAL_ADDRESS;
69	void *balloc_base;	88	void *balloc_base;
70	unsigned int top = 0;	89	unsigned int top = 0;
71	int i, j;	90	int i, j;
72		91
73	version_print();	92	version_print();
74		93
-		94	detect_subarchitecture();
75	init_components(components);	95	init_components(components);
76		96
77	if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {	97	if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
78	printf("Error: unable to get start of physical memory.\n");	98	printf("Error: unable to get start of physical memory.\n");
79	halt();	99	halt();
80	}	100	}
81		101
82	if (!ofw_memmap(&bootinfo.memmap)) {	102	if (!ofw_memmap(&bootinfo.memmap)) {
83	printf("Error: unable to get memory map, halting.\n");	103	printf("Error: unable to get memory map, halting.\n");
84	halt();	104	halt();
85	}	105	}
86		106
87	if (bootinfo.memmap.total == 0) {	107	if (bootinfo.memmap.total == 0) {
88	printf("Error: no memory detected, halting.\n");	108	printf("Error: no memory detected, halting.\n");
89	halt();	109	halt();
90	}	110	}
91		111
92	/*	112	/*
93	* SILO for some reason adds 0x400000 and subtracts	113	* SILO for some reason adds 0x400000 and subtracts
94	* bootinfo.physmem_start to/from silo_ramdisk_image.	114	* bootinfo.physmem_start to/from silo_ramdisk_image.
95	* We just need plain physical address so we fix it up.	115	* We just need plain physical address so we fix it up.
96	*/	116	*/
97	if (silo_ramdisk_image) {	117	if (silo_ramdisk_image) {
98	silo_ramdisk_image += bootinfo.physmem_start;	118	silo_ramdisk_image += bootinfo.physmem_start;
99	silo_ramdisk_image -= 0x400000;	119	silo_ramdisk_image -= 0x400000;
100	/* Install 1:1 mapping for the ramdisk. */	120	/* Install 1:1 mapping for the ramdisk. */
101	if (ofw_map((void *)((uintptr_t)silo_ramdisk_image),	121	if (ofw_map((void *)((uintptr_t)silo_ramdisk_image),
102	(void *)((uintptr_t)silo_ramdisk_image),	122	(void *)((uintptr_t)silo_ramdisk_image),
103	silo_ramdisk_size, -1) != 0) {	123	silo_ramdisk_size, -1) != 0) {
104	printf("Failed to map ramdisk.\n");	124	printf("Failed to map ramdisk.\n");
105	halt();	125	halt();
106	}	126	}
107	}	127	}
108		128
109	printf("\nSystem info\n");	129	printf("\nSystem info\n");
110	printf(" memory: %dM starting at %P\n",	130	printf(" memory: %dM starting at %P\n",
111	bootinfo.memmap.total >> 20, bootinfo.physmem_start);	131	bootinfo.memmap.total >> 20, bootinfo.physmem_start);
112		132
113	printf("\nMemory statistics\n");	133	printf("\nMemory statistics\n");
114	printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);	134	printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);
115	printf(" %P: boot info structure\n", &bootinfo);	135	printf(" %P: boot info structure\n", &bootinfo);
116		136
117	/*	137	/*
118	* Figure out destination address for each component.	138	* Figure out destination address for each component.
119	* In this phase, we don't copy the components yet because we want to	139	* In this phase, we don't copy the components yet because we want to
120	* to be careful not to overwrite anything, especially the components	140	* to be careful not to overwrite anything, especially the components
121	* which haven't been copied yet.	141	* which haven't been copied yet.
122	*/	142	*/
123	bootinfo.taskmap.count = 0;	143	bootinfo.taskmap.count = 0;
124	for (i = 0; i < COMPONENTS; i++) {	144	for (i = 0; i < COMPONENTS; i++) {
125	printf(" %P: %s image (size %d bytes)\n", components[i].start,	145	printf(" %P: %s image (size %d bytes)\n", components[i].start,
126	components[i].name, components[i].size);	146	components[i].name, components[i].size);
127	top = ALIGN_UP(top, PAGE_SIZE);	147	top = ALIGN_UP(top, PAGE_SIZE);
128	if (i > 0) {	148	if (i > 0) {
129	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {	149	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
130	printf("Skipping superfluous components.\n");	150	printf("Skipping superfluous components.\n");
131	break;	151	break;
132	}	152	}
133	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =	153	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
134	base + top;	154	base + top;
135	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =	155	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
136	components[i].size;	156	components[i].size;
137	bootinfo.taskmap.count++;	157	bootinfo.taskmap.count++;
138	}	158	}
139	top += components[i].size;	159	top += components[i].size;
140	}	160	}
141		161
142	j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */	162	j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */
143		163
144	if (silo_ramdisk_image) {	164	if (silo_ramdisk_image) {
145	/* Treat the ramdisk as the last bootinfo task. */	165	/* Treat the ramdisk as the last bootinfo task. */
146	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {	166	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
147	printf("Skipping ramdisk.\n");	167	printf("Skipping ramdisk.\n");
148	goto skip_ramdisk;	168	goto skip_ramdisk;
149	}	169	}
150	top = ALIGN_UP(top, PAGE_SIZE);	170	top = ALIGN_UP(top, PAGE_SIZE);
151	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =	171	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
152	base + top;	172	base + top;
153	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =	173	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
154	silo_ramdisk_size;	174	silo_ramdisk_size;
155	bootinfo.taskmap.count++;	175	bootinfo.taskmap.count++;
156	printf("\nCopying ramdisk...");	176	printf("\nCopying ramdisk...");
157	/*	177	/*
158	* Claim and map the whole ramdisk as it may exceed the area	178	* Claim and map the whole ramdisk as it may exceed the area
159	* given to us by SILO.	179	* given to us by SILO.
160	*/	180	*/
161	(void) ofw_claim_phys(base + top, silo_ramdisk_size);	181	(void) ofw_claim_phys(base + top, silo_ramdisk_size);
162	(void) ofw_map(base + top, base + top, silo_ramdisk_size, -1);	182	(void) ofw_map(base + top, base + top, silo_ramdisk_size, -1);
163	memmove(base + top, (void *)((uintptr_t)silo_ramdisk_image),	183	memmove(base + top, (void *)((uintptr_t)silo_ramdisk_image),
164	silo_ramdisk_size);	184	silo_ramdisk_size);
165	printf("done.\n");	185	printf("done.\n");
166	top += silo_ramdisk_size;	186	top += silo_ramdisk_size;
167	}	187	}
168	skip_ramdisk:	188	skip_ramdisk:
169		189
170	/*	190	/*
171	* Now we can proceed to copy the components. We do it in reverse order	191	* Now we can proceed to copy the components. We do it in reverse order
172	* so that we don't overwrite anything even if the components overlap	192	* so that we don't overwrite anything even if the components overlap
173	* with base.	193	* with base.
174	*/	194	*/
175	printf("\nCopying bootinfo tasks\n");	195	printf("\nCopying bootinfo tasks\n");
176	for (i = COMPONENTS - 1; i > 0; i--, j--) {	196	for (i = COMPONENTS - 1; i > 0; i--, j--) {
177	printf(" %s...", components[i].name);	197	printf(" %s...", components[i].name);
178		198
179	/*	199	/*
180	* At this point, we claim the physical memory that we are	200	* At this point, we claim the physical memory that we are
181	* going to use. We should be safe in case of the virtual	201	* going to use. We should be safe in case of the virtual
182	* address space because the OpenFirmware, according to its	202	* address space because the OpenFirmware, according to its
183	* SPARC binding, should restrict its use of virtual memory	203	* SPARC binding, should restrict its use of virtual memory
184	* to addresses from [0xffd00000; 0xffefffff] and	204	* to addresses from [0xffd00000; 0xffefffff] and
185	* [0xfe000000; 0xfeffffff].	205	* [0xfe000000; 0xfeffffff].
186	*	206	*
187	* XXX We don't map this piece of memory. We simply rely on	207	* XXX We don't map this piece of memory. We simply rely on
188	* SILO to have it done for us already in this case.	208	* SILO to have it done for us already in this case.
189	*/	209	*/
190	(void) ofw_claim_phys(bootinfo.physmem_start +	210	(void) ofw_claim_phys(bootinfo.physmem_start +
191	bootinfo.taskmap.tasks[j].addr,	211	bootinfo.taskmap.tasks[j].addr,
192	ALIGN_UP(components[i].size, PAGE_SIZE));	212	ALIGN_UP(components[i].size, PAGE_SIZE));
193		213
194	memcpy((void *)bootinfo.taskmap.tasks[j].addr,	214	memcpy((void *)bootinfo.taskmap.tasks[j].addr,
195	components[i].start, components[i].size);	215	components[i].start, components[i].size);
196	printf("done.\n");	216	printf("done.\n");
197	}	217	}
198		218
199	printf("\nCopying kernel...");	219	printf("\nCopying kernel...");
200	(void) ofw_claim_phys(bootinfo.physmem_start + base,	220	(void) ofw_claim_phys(bootinfo.physmem_start + base,
201	ALIGN_UP(components[0].size, PAGE_SIZE));	221	ALIGN_UP(components[0].size, PAGE_SIZE));
202	memcpy(base, components[0].start, components[0].size);	222	memcpy(base, components[0].start, components[0].size);
203	printf("done.\n");	223	printf("done.\n");
204		224
205	/*	225	/*
206	* Claim and map the physical memory for the boot allocator.	226	* Claim and map the physical memory for the boot allocator.
207	* Initialize the boot allocator.	227	* Initialize the boot allocator.
208	*/	228	*/
209	balloc_base = base + ALIGN_UP(top, PAGE_SIZE);	229	balloc_base = base + ALIGN_UP(top, PAGE_SIZE);
210	(void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,	230	(void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,
211	BALLOC_MAX_SIZE);	231	BALLOC_MAX_SIZE);
212	(void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1);	232	(void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1);
213	balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);	233	balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);
214		234
215	printf("\nCanonizing OpenFirmware device tree...");	235	printf("\nCanonizing OpenFirmware device tree...");
216	bootinfo.ofw_root = ofw_tree_build();	236	bootinfo.ofw_root = ofw_tree_build();
217	printf("done.\n");	237	printf("done.\n");
218		238
219	#ifdef CONFIG_SMP	239	#ifdef CONFIG_SMP
220	printf("\nChecking for secondary processors...");	240	printf("\nChecking for secondary processors...");
221	if (!ofw_cpu())	241	if (!ofw_cpu())
222	printf("Error: unable to get CPU properties\n");	242	printf("Error: unable to get CPU properties\n");
223	printf("done.\n");	243	printf("done.\n");
224	#endif	244	#endif
225		245
226	printf("\nBooting the kernel...\n");	246	printf("\nBooting the kernel...\n");
227	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,	247	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
228	bootinfo.physmem_start \| BSP_PROCESSOR, &bootinfo,	248	bootinfo.physmem_start \| BSP_PROCESSOR, &bootinfo,
229	sizeof(bootinfo));	249	sizeof(bootinfo));
230	}	250	}
231		251
232		252

Subversion Repositories HelenOS

(root)/branches/sparc/boot/arch/sparc64/loader/main.c – Rev 3502 → 3582