Subversion Repositories HelenOS

Rev

Rev 2009 | Rev 2049 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
640 jermar 1
/*
2
 * Copyright (C) 2005 Jakub Jermar
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
1731 jermar 29
/** @addtogroup sparc64
1702 cejka 30
 * @{
31
 */
32
/** @file
33
 */
34
 
1881 jermar 35
#include <arch/asm.h>
640 jermar 36
#include <cpu.h>
37
#include <arch.h>
1899 jermar 38
#include <print.h>
640 jermar 39
#include <arch/register.h>
1899 jermar 40
#include <genarch/ofw/ofw_tree.h>
41
#include <arch/types.h>
42
#include <arch/drivers/tick.h>
1917 jermar 43
#include <arch/mm/page.h>
44
#include <arch/mm/tlb.h>
45
#include <macros.h>
640 jermar 46
 
1899 jermar 47
/** Perform sparc64 specific initialization of the processor structure for the current processor. */
640 jermar 48
void cpu_arch_init(void)
49
{
1899 jermar 50
    ofw_tree_node_t *node;
51
    uint32_t mid;
52
    uint32_t clock_frequency = 0;
53
    upa_config_t upa_config;
54
 
55
    upa_config.value = upa_config_read();
1903 jermar 56
    CPU->arch.mid = upa_config.mid;
57
 
1917 jermar 58
    /*
59
     * Detect processor frequency.
60
     */
1899 jermar 61
    node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu");
62
    while (node) {
63
        ofw_tree_property_t *prop;
64
 
65
        prop = ofw_tree_getprop(node, "upa-portid");
66
        if (prop && prop->value) {
67
            mid = *((uint32_t *) prop->value);
1903 jermar 68
            if (mid == CPU->arch.mid) {
1899 jermar 69
                prop = ofw_tree_getprop(node, "clock-frequency");
70
                if (prop && prop->value)
71
                    clock_frequency = *((uint32_t *) prop->value);
72
            }
73
        }
74
        node = ofw_tree_find_peer_by_device_type(node, "cpu");
75
    }
76
 
77
    CPU->arch.clock_frequency = clock_frequency;
78
    tick_init();
1917 jermar 79
 
80
    /*
81
     * Lock CPU stack in DTLB.
82
     */
83
    uintptr_t base = ALIGN_DOWN(config.base, 1<<KERNEL_PAGE_WIDTH);
84
 
85
    if (!overlaps((uintptr_t) CPU->stack, PAGE_SIZE, base, (1<<KERNEL_PAGE_WIDTH))) {
86
        /*
87
         * Kernel stack of this processor is not locked in DTLB.
88
         * First, demap any already existing mappings.
89
         * Second, create a locked mapping for it.
90
         */
91
        dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, (uintptr_t) CPU->stack);
92
        dtlb_insert_mapping((uintptr_t) CPU->stack, KA2PA(CPU->stack), PAGESIZE_8K, true, true);
93
    }
640 jermar 94
}
95
 
1899 jermar 96
/** Read version information from the current processor. */
640 jermar 97
void cpu_identify(void)
98
{
99
    CPU->arch.ver.value = ver_read();
100
}
101
 
1899 jermar 102
/** Print version information for a processor.
103
 *
1903 jermar 104
 * This function is called by the bootstrap processor.
105
 *
1899 jermar 106
 * @param m Processor structure of the CPU for which version information is to be printed.
107
 */
640 jermar 108
void cpu_print_report(cpu_t *m)
109
{
110
    char *manuf, *impl;
111
 
1903 jermar 112
    switch (m->arch.ver.manuf) {
113
    case MANUF_FUJITSU:
640 jermar 114
        manuf = "Fujitsu";
115
        break;
1903 jermar 116
    case MANUF_ULTRASPARC:
640 jermar 117
        manuf = "UltraSPARC";
118
        break;
1903 jermar 119
    case MANUF_SUN:
640 jermar 120
            manuf = "Sun";
121
        break;
1903 jermar 122
    default:
640 jermar 123
        manuf = "Unknown";
124
        break;
125
    }
126
 
127
    switch (CPU->arch.ver.impl) {
1903 jermar 128
    case IMPL_ULTRASPARCI:
640 jermar 129
        impl = "UltraSPARC I";
130
        break;
1903 jermar 131
    case IMPL_ULTRASPARCII:
640 jermar 132
        impl = "UltraSPARC II";
133
        break;
1903 jermar 134
    case IMPL_ULTRASPARCII_I:
640 jermar 135
        impl = "UltraSPARC IIi";
136
        break;
1903 jermar 137
    case IMPL_ULTRASPARCII_E:
640 jermar 138
        impl = "UltraSPARC IIe";
139
        break;
1903 jermar 140
    case IMPL_ULTRASPARCIII:
640 jermar 141
        impl = "UltraSPARC III";
142
        break;
1903 jermar 143
    case IMPL_ULTRASPARCIV_PLUS:
640 jermar 144
        impl = "UltraSPARC IV+";
145
        break;
1903 jermar 146
    case IMPL_SPARC64V:
640 jermar 147
        impl = "SPARC 64V";
148
        break;
1903 jermar 149
    default:
640 jermar 150
        impl = "Unknown";
151
        break;
152
    }
153
 
1881 jermar 154
    printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n",
1903 jermar 155
        m->id, manuf, impl, m->arch.ver.mask, m->arch.clock_frequency/1000000);
640 jermar 156
}
1702 cejka 157
 
1731 jermar 158
/** @}
1702 cejka 159
 */