Subversion Repositories HelenOS

Rev

Rev 3022 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
640 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2005 Jakub Jermar
640 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
 
4055 trochtova 35
#include <arch/cpu_family.h>
640 jermar 36
#include <cpu.h>
37
#include <arch.h>
1899 jermar 38
#include <genarch/ofw/ofw_tree.h>
39
#include <arch/drivers/tick.h>
2089 decky 40
#include <print.h>
4055 trochtova 41
#include <arch/cpu_node.h>
640 jermar 42
 
4055 trochtova 43
/**
44
 * Finds out the clock frequency of the current CPU.
45
 *
46
 * @param node  node representing the current CPU in the OFW tree
47
 * @return  clock frequency if "node" is the current CPU and no error
48
 *      occurs, -1 if "node" is not the current CPU or on error
49
 */
50
static int find_cpu_frequency(ofw_tree_node_t *node)
51
{
52
    ofw_tree_property_t *prop;
53
    uint32_t mid;
54
 
55
    /* 'upa-portid' for US, 'portid' for US-III, 'cpuid' for US-IV */
56
    prop = ofw_tree_getprop(node, "upa-portid");
57
    if ((!prop) || (!prop->value))
58
        prop = ofw_tree_getprop(node, "portid");
59
    if ((!prop) || (!prop->value))
60
        prop = ofw_tree_getprop(node, "cpuid");
61
 
62
    if (prop && prop->value) {
63
        mid = *((uint32_t *) prop->value);
64
        if (mid == CPU->arch.mid) {
65
            prop = ofw_tree_getprop(node, "clock-frequency");
66
            if (prop && prop->value) {
67
                return *((uint32_t *) prop->value);
68
            }
69
        }
70
    }
71
 
72
    return -1;
73
}
74
 
2049 jermar 75
/** Perform sparc64 specific initialization of the processor structure for the
76
 * current processor.
77
 */
640 jermar 78
void cpu_arch_init(void)
79
{
1899 jermar 80
    ofw_tree_node_t *node;
81
    uint32_t clock_frequency = 0;
82
 
4055 trochtova 83
    CPU->arch.mid = read_mid();
1903 jermar 84
 
1917 jermar 85
    /*
86
     * Detect processor frequency.
87
     */
4055 trochtova 88
    if (is_us() || is_us_iii()) {
89
        node = ofw_tree_find_child_by_device_type(cpus_parent(), "cpu");
90
        while (node) {
91
            int f = find_cpu_frequency(node);
92
            if (f != -1)
93
                clock_frequency = (uint32_t) f;
94
            node = ofw_tree_find_peer_by_device_type(node, "cpu");
1899 jermar 95
        }
4055 trochtova 96
    } else if (is_us_iv()) {
97
        node = ofw_tree_find_child(cpus_parent(), "cmp");
98
        while (node) {
99
            int f;
100
            f = find_cpu_frequency(
101
                ofw_tree_find_child(node, "cpu@0"));
102
            if (f != -1)
103
                clock_frequency = (uint32_t) f;
104
            f = find_cpu_frequency(
105
                ofw_tree_find_child(node, "cpu@1"));
106
            if (f != -1)
107
                clock_frequency = (uint32_t) f;
108
            node = ofw_tree_find_peer_by_name(node, "cmp");
109
        }
1899 jermar 110
    }
4055 trochtova 111
 
1899 jermar 112
    CPU->arch.clock_frequency = clock_frequency;
113
    tick_init();
640 jermar 114
}
115
 
1899 jermar 116
/** Read version information from the current processor. */
640 jermar 117
void cpu_identify(void)
118
{
119
    CPU->arch.ver.value = ver_read();
120
}
121
 
1899 jermar 122
/** Print version information for a processor.
123
 *
1903 jermar 124
 * This function is called by the bootstrap processor.
125
 *
2049 jermar 126
 * @param m Processor structure of the CPU for which version information is to
127
 *  be printed.
1899 jermar 128
 */
640 jermar 129
void cpu_print_report(cpu_t *m)
130
{
131
    char *manuf, *impl;
132
 
1903 jermar 133
    switch (m->arch.ver.manuf) {
134
    case MANUF_FUJITSU:
640 jermar 135
        manuf = "Fujitsu";
136
        break;
1903 jermar 137
    case MANUF_ULTRASPARC:
640 jermar 138
        manuf = "UltraSPARC";
139
        break;
1903 jermar 140
    case MANUF_SUN:
640 jermar 141
            manuf = "Sun";
142
        break;
1903 jermar 143
    default:
640 jermar 144
        manuf = "Unknown";
145
        break;
146
    }
147
 
148
    switch (CPU->arch.ver.impl) {
1903 jermar 149
    case IMPL_ULTRASPARCI:
640 jermar 150
        impl = "UltraSPARC I";
151
        break;
1903 jermar 152
    case IMPL_ULTRASPARCII:
640 jermar 153
        impl = "UltraSPARC II";
154
        break;
1903 jermar 155
    case IMPL_ULTRASPARCII_I:
640 jermar 156
        impl = "UltraSPARC IIi";
157
        break;
1903 jermar 158
    case IMPL_ULTRASPARCII_E:
640 jermar 159
        impl = "UltraSPARC IIe";
160
        break;
1903 jermar 161
    case IMPL_ULTRASPARCIII:
640 jermar 162
        impl = "UltraSPARC III";
163
        break;
4055 trochtova 164
    case IMPL_ULTRASPARCIII_PLUS:
165
        impl = "UltraSPARC III+";
166
        break;
167
    case IMPL_ULTRASPARCIII_I:
168
        impl = "UltraSPARC IIIi";
169
        break;
170
    case IMPL_ULTRASPARCIV:
171
        impl = "UltraSPARC IV";
172
        break;
1903 jermar 173
    case IMPL_ULTRASPARCIV_PLUS:
640 jermar 174
        impl = "UltraSPARC IV+";
175
        break;
1903 jermar 176
    case IMPL_SPARC64V:
640 jermar 177
        impl = "SPARC 64V";
178
        break;
1903 jermar 179
    default:
640 jermar 180
        impl = "Unknown";
181
        break;
182
    }
183
 
4055 trochtova 184
    printf("cpu%d: manuf=%s, impl=%s, mask=%d (%d MHz)\n", m->id, manuf,
2049 jermar 185
        impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000);
640 jermar 186
}
1702 cejka 187
 
1731 jermar 188
/** @}
1702 cejka 189
 */