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(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
 
    setup_palette();
 
    printf("\nBooting the kernel...\n");
    jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
        bootinfo.physmem_start | BSP_PROCESSOR, &bootinfo,
        sizeof(bootinfo));
}
 
 

Rev 4337	Rev 4341
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
42	component_t components[COMPONENTS];	42	component_t components[COMPONENTS];
43		43
44	char *release = RELEASE;	44	char *release = RELEASE;
45		45
46	#ifdef REVISION	46	#ifdef REVISION
47	char *revision = ", revision " REVISION;	47	char *revision = ", revision " REVISION;
48	#else	48	#else
49	char *revision = "";	49	char *revision = "";
50	#endif	50	#endif
51		51
52	#ifdef TIMESTAMP	52	#ifdef TIMESTAMP
53	char *timestamp = "\nBuilt on " TIMESTAMP;	53	char *timestamp = "\nBuilt on " TIMESTAMP;
54	#else	54	#else
55	char *timestamp = "";	55	char *timestamp = "";
56	#endif	56	#endif
57		57
58	/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */	58	/** UltraSPARC subarchitecture - 1 for US, 3 for US3 */
59	uint8_t subarchitecture;	59	uint8_t subarchitecture;
60		60
61	/**	61	/**
62	* mask of the MID field inside the ICBUS_CONFIG register shifted by	62	* mask of the MID field inside the ICBUS_CONFIG register shifted by
63	* MID_SHIFT bits to the right	63	* MID_SHIFT bits to the right
64	*/	64	*/
65	uint16_t mid_mask;	65	uint16_t mid_mask;
66		66
67	/** Print version information. */	67	/** Print version information. */
68	static void version_print(void)	68	static void version_print(void)
69	{	69	{
70	printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"	70	printf("HelenOS SPARC64 Bootloader\nRelease %s%s%s\n"
71	"Copyright (c) 2006 HelenOS project\n",	71	"Copyright (c) 2006 HelenOS project\n",
72	release, revision, timestamp);	72	release, revision, timestamp);
73	}	73	}
74		74
75	/* the lowest ID (read from the VER register) of some US3 CPU model */	75	/* the lowest ID (read from the VER register) of some US3 CPU model */
76	#define FIRST_US3_CPU 0x14	76	#define FIRST_US3_CPU 0x14
77		77
78	/* the greatest ID (read from the VER register) of some US3 CPU model */	78	/* the greatest ID (read from the VER register) of some US3 CPU model */
79	#define LAST_US3_CPU 0x19	79	#define LAST_US3_CPU 0x19
80		80
81	/* UltraSPARC IIIi processor implementation code */	81	/* UltraSPARC IIIi processor implementation code */
82	#define US_IIIi_CODE 0x15	82	#define US_IIIi_CODE 0x15
83		83
84	/**	84	/**
85	* Sets the global variables "subarchitecture" and "mid_mask" to	85	* Sets the global variables "subarchitecture" and "mid_mask" to
86	* correct values.	86	* correct values.
87	*/	87	*/
88	static void detect_subarchitecture(void)	88	static void detect_subarchitecture(void)
89	{	89	{
90	uint64_t v;	90	uint64_t v;
91	asm volatile ("rdpr %%ver, %0\n" : "=r" (v));	91	asm volatile ("rdpr %%ver, %0\n" : "=r" (v));
92		92
93	v = (v << 16) >> 48;	93	v = (v << 16) >> 48;
94	if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {	94	if ((v >= FIRST_US3_CPU) && (v <= LAST_US3_CPU)) {
95	subarchitecture = SUBARCH_US3;	95	subarchitecture = SUBARCH_US3;
96	if (v == US_IIIi_CODE)	96	if (v == US_IIIi_CODE)
97	mid_mask = (1 << 5) - 1;	97	mid_mask = (1 << 5) - 1;
98	else	98	else
99	mid_mask = (1 << 10) - 1;	99	mid_mask = (1 << 10) - 1;
100	} else if (v < FIRST_US3_CPU) {	100	} else if (v < FIRST_US3_CPU) {
101	subarchitecture = SUBARCH_US;	101	subarchitecture = SUBARCH_US;
102	mid_mask = (1 << 5) - 1;	102	mid_mask = (1 << 5) - 1;
103	} else {	103	} else {
104	printf("\nThis CPU is not supported by HelenOS.");	104	printf("\nThis CPU is not supported by HelenOS.");
105	}	105	}
106	}	106	}
107		107
108	void bootstrap(void)	108	void bootstrap(void)
109	{	109	{
110	void base = (void ) KERNEL_VIRTUAL_ADDRESS;	110	void base = (void ) KERNEL_VIRTUAL_ADDRESS;
111	void *balloc_base;	111	void *balloc_base;
112	unsigned int top = 0;	112	unsigned int top = 0;
113	int i, j;	113	int i, j;
114		114
115	version_print();	115	version_print();
116		116
117	detect_subarchitecture();	117	detect_subarchitecture();
118	init_components(components);	118	init_components(components);
119		119
120	if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {	120	if (!ofw_get_physmem_start(&bootinfo.physmem_start)) {
121	printf("Error: unable to get start of physical memory.\n");	121	printf("Error: unable to get start of physical memory.\n");
122	halt();	122	halt();
123	}	123	}
124		124
125	if (!ofw_memmap(&bootinfo.memmap)) {	125	if (!ofw_memmap(&bootinfo.memmap)) {
126	printf("Error: unable to get memory map, halting.\n");	126	printf("Error: unable to get memory map, halting.\n");
127	halt();	127	halt();
128	}	128	}
129		129
130	if (bootinfo.memmap.total == 0) {	130	if (bootinfo.memmap.total == 0) {
131	printf("Error: no memory detected, halting.\n");	131	printf("Error: no memory detected, halting.\n");
132	halt();	132	halt();
133	}	133	}
134		134
135	/*	135	/*
136	* SILO for some reason adds 0x400000 and subtracts	136	* SILO for some reason adds 0x400000 and subtracts
137	* bootinfo.physmem_start to/from silo_ramdisk_image.	137	* bootinfo.physmem_start to/from silo_ramdisk_image.
138	* We just need plain physical address so we fix it up.	138	* We just need plain physical address so we fix it up.
139	*/	139	*/
140	if (silo_ramdisk_image) {	140	if (silo_ramdisk_image) {
141	silo_ramdisk_image += bootinfo.physmem_start;	141	silo_ramdisk_image += bootinfo.physmem_start;
142	silo_ramdisk_image -= 0x400000;	142	silo_ramdisk_image -= 0x400000;
143	/* Install 1:1 mapping for the ramdisk. */	143	/* Install 1:1 mapping for the ramdisk. */
144	if (ofw_map((void *)((uintptr_t)silo_ramdisk_image),	144	if (ofw_map((void *)((uintptr_t) silo_ramdisk_image),
145	(void *)((uintptr_t)silo_ramdisk_image),	145	(void *)((uintptr_t) silo_ramdisk_image),
146	silo_ramdisk_size, -1) != 0) {	146	silo_ramdisk_size, -1) != 0) {
147	printf("Failed to map ramdisk.\n");	147	printf("Failed to map ramdisk.\n");
148	halt();	148	halt();
149	}	149	}
150	}	150	}
151		151
152	printf("\nSystem info\n");	152	printf("\nSystem info\n");
153	printf(" memory: %dM starting at %P\n",	153	printf(" memory: %dM starting at %P\n",
154	bootinfo.memmap.total >> 20, bootinfo.physmem_start);	154	bootinfo.memmap.total >> 20, bootinfo.physmem_start);
155		155
156	printf("\nMemory statistics\n");	156	printf("\nMemory statistics\n");
157	printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);	157	printf(" kernel entry point at %P\n", KERNEL_VIRTUAL_ADDRESS);
158	printf(" %P: boot info structure\n", &bootinfo);	158	printf(" %P: boot info structure\n", &bootinfo);
159		159
160	/*	160	/*
161	* Figure out destination address for each component.	161	* Figure out destination address for each component.
162	* 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
163	* to be careful not to overwrite anything, especially the components	163	* to be careful not to overwrite anything, especially the components
164	* which haven't been copied yet.	164	* which haven't been copied yet.
165	*/	165	*/
166	bootinfo.taskmap.count = 0;	166	bootinfo.taskmap.count = 0;
167	for (i = 0; i < COMPONENTS; i++) {	167	for (i = 0; i < COMPONENTS; i++) {
168	printf(" %P: %s image (size %d bytes)\n", components[i].start,	168	printf(" %P: %s image (size %d bytes)\n", components[i].start,
169	components[i].name, components[i].size);	169	components[i].name, components[i].size);
170	top = ALIGN_UP(top, PAGE_SIZE);	170	top = ALIGN_UP(top, PAGE_SIZE);
171	if (i > 0) {	171	if (i > 0) {
172	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {	172	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
173	printf("Skipping superfluous components.\n");	173	printf("Skipping superfluous components.\n");
174	break;	174	break;
175	}	175	}
176	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =	176	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
177	base + top;	177	base + top;
178	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =	178	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
179	components[i].size;	179	components[i].size;
180	bootinfo.taskmap.count++;	180	bootinfo.taskmap.count++;
181	}	181	}
182	top += components[i].size;	182	top += components[i].size;
183	}	183	}
184		184
185	j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */	185	j = bootinfo.taskmap.count - 1; /* do not consider ramdisk */
186		186
187	if (silo_ramdisk_image) {	187	if (silo_ramdisk_image) {
188	/* Treat the ramdisk as the last bootinfo task. */	188	/* Treat the ramdisk as the last bootinfo task. */
189	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {	189	if (bootinfo.taskmap.count == TASKMAP_MAX_RECORDS) {
190	printf("Skipping ramdisk.\n");	190	printf("Skipping ramdisk.\n");
191	goto skip_ramdisk;	191	goto skip_ramdisk;
192	}	192	}
193	top = ALIGN_UP(top, PAGE_SIZE);	193	top = ALIGN_UP(top, PAGE_SIZE);
194	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =	194	bootinfo.taskmap.tasks[bootinfo.taskmap.count].addr =
195	base + top;	195	base + top;
196	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =	196	bootinfo.taskmap.tasks[bootinfo.taskmap.count].size =
197	silo_ramdisk_size;	197	silo_ramdisk_size;
198	bootinfo.taskmap.count++;	198	bootinfo.taskmap.count++;
199	printf("\nCopying ramdisk...");	199	printf("\nCopying ramdisk...");
200	/*	200	/*
201	* 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
202	* given to us by SILO.	202	* given to us by SILO.
203	*/	203	*/
204	(void) ofw_claim_phys(base + top, silo_ramdisk_size);	204	(void) ofw_claim_phys(base + top, silo_ramdisk_size);
205	(void) ofw_map(base + top, base + top, silo_ramdisk_size, -1);	205	(void) ofw_map(bootinfo.physmem_start + base + top, base + top,
-		206	silo_ramdisk_size, -1);
206	/*	207	/*
207	* FIXME If the source and destination overlap, it may be	208	* FIXME If the source and destination overlap, it may be
208	* desirable to copy in reverse order, depending on how the two	209	* desirable to copy in reverse order, depending on how the two
209	* regions overlap.	210	* regions overlap.
210	*/	211	*/
211	memcpy(base + top, (void *)((uintptr_t)silo_ramdisk_image),	212	memcpy(base + top, (void *)((uintptr_t)silo_ramdisk_image),
212	silo_ramdisk_size);	213	silo_ramdisk_size);
213	printf("done.\n");	214	printf("done.\n");
214	top += silo_ramdisk_size;	215	top += silo_ramdisk_size;
215	}	216	}
216	skip_ramdisk:	217	skip_ramdisk:
217		218
218	/*	219	/*
219	* Now we can proceed to copy the components. We do it in reverse order	220	* Now we can proceed to copy the components. We do it in reverse order
220	* so that we don't overwrite anything even if the components overlap	221	* so that we don't overwrite anything even if the components overlap
221	* with base.	222	* with base.
222	*/	223	*/
223	printf("\nCopying bootinfo tasks\n");	224	printf("\nCopying bootinfo tasks\n");
224	for (i = COMPONENTS - 1; i > 0; i--, j--) {	225	for (i = COMPONENTS - 1; i > 0; i--, j--) {
225	printf(" %s...", components[i].name);	226	printf(" %s...", components[i].name);
226		227
227	/*	228	/*
228	* At this point, we claim the physical memory that we are	229	* At this point, we claim the physical memory that we are
229	* going to use. We should be safe in case of the virtual	230	* going to use. We should be safe in case of the virtual
230	* address space because the OpenFirmware, according to its	231	* address space because the OpenFirmware, according to its
231	* SPARC binding, should restrict its use of virtual memory	232	* SPARC binding, should restrict its use of virtual memory
232	* to addresses from [0xffd00000; 0xffefffff] and	233	* to addresses from [0xffd00000; 0xffefffff] and
233	* [0xfe000000; 0xfeffffff].	234	* [0xfe000000; 0xfeffffff].
234	*	235	*
235	* XXX We don't map this piece of memory. We simply rely on	236	* XXX We don't map this piece of memory. We simply rely on
236	* SILO to have it done for us already in this case.	237	* SILO to have it done for us already in this case.
237	*/	238	*/
238	(void) ofw_claim_phys(bootinfo.physmem_start +	239	(void) ofw_claim_phys(bootinfo.physmem_start +
239	bootinfo.taskmap.tasks[j].addr,	240	bootinfo.taskmap.tasks[j].addr,
240	ALIGN_UP(components[i].size, PAGE_SIZE));	241	ALIGN_UP(components[i].size, PAGE_SIZE));
241		242
242	memcpy((void *)bootinfo.taskmap.tasks[j].addr,	243	memcpy((void *)bootinfo.taskmap.tasks[j].addr,
243	components[i].start, components[i].size);	244	components[i].start, components[i].size);
244	printf("done.\n");	245	printf("done.\n");
245	}	246	}
246		247
247	printf("\nCopying kernel...");	248	printf("\nCopying kernel...");
248	(void) ofw_claim_phys(bootinfo.physmem_start + base,	249	(void) ofw_claim_phys(bootinfo.physmem_start + base,
249	ALIGN_UP(components[0].size, PAGE_SIZE));	250	ALIGN_UP(components[0].size, PAGE_SIZE));
250	memcpy(base, components[0].start, components[0].size);	251	memcpy(base, components[0].start, components[0].size);
251	printf("done.\n");	252	printf("done.\n");
252		253
253	/*	254	/*
254	* Claim and map the physical memory for the boot allocator.	255	* Claim and map the physical memory for the boot allocator.
255	* Initialize the boot allocator.	256	* Initialize the boot allocator.
256	*/	257	*/
257	balloc_base = base + ALIGN_UP(top, PAGE_SIZE);	258	balloc_base = base + ALIGN_UP(top, PAGE_SIZE);
258	(void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,	259	(void) ofw_claim_phys(bootinfo.physmem_start + balloc_base,
259	BALLOC_MAX_SIZE);	260	BALLOC_MAX_SIZE);
260	(void) ofw_map(balloc_base, balloc_base, BALLOC_MAX_SIZE, -1);	261	(void) ofw_map(bootinfo.physmem_start + balloc_base, balloc_base,
-		262	BALLOC_MAX_SIZE, -1);
261	balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);	263	balloc_init(&bootinfo.ballocs, (uintptr_t)balloc_base);
262		264
263	printf("\nCanonizing OpenFirmware device tree...");	265	printf("\nCanonizing OpenFirmware device tree...");
264	bootinfo.ofw_root = ofw_tree_build();	266	bootinfo.ofw_root = ofw_tree_build();
265	printf("done.\n");	267	printf("done.\n");
266		268
267	#ifdef CONFIG_SMP	269	#ifdef CONFIG_AP
268	printf("\nChecking for secondary processors...");	270	printf("\nChecking for secondary processors...");
269	if (!ofw_cpu())	271	if (!ofw_cpu())
270	printf("Error: unable to get CPU properties\n");	272	printf("Error: unable to get CPU properties\n");
271	printf("done.\n");	273	printf("done.\n");
272	#endif	274	#endif
273		275
274	setup_palette();	276	setup_palette();
275		277
276	printf("\nBooting the kernel...\n");	278	printf("\nBooting the kernel...\n");
277	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,	279	jump_to_kernel((void *) KERNEL_VIRTUAL_ADDRESS,
278	bootinfo.physmem_start \| BSP_PROCESSOR, &bootinfo,	280	bootinfo.physmem_start \| BSP_PROCESSOR, &bootinfo,
279	sizeof(bootinfo));	281	sizeof(bootinfo));
280	}	282	}
281		-
282		283

Subversion Repositories HelenOS

(root)/branches/dynload/boot/arch/sparc64/loader/main.c @ 3905 – Rev 4337 → 4341