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640 | jermar | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2005 Jakub Jermar |
640 | jermar | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1731 | jermar | 29 | /** @addtogroup sparc64 |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
3582 | rimsky | 35 | #include <arch/cpu_family.h> |
640 | jermar | 36 | #include <cpu.h> |
37 | #include <arch.h> |
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1899 | jermar | 38 | #include <genarch/ofw/ofw_tree.h> |
39 | #include <arch/drivers/tick.h> |
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2089 | decky | 40 | #include <print.h> |
3467 | rimsky | 41 | #include <arch/cpu_node.h> |
640 | jermar | 42 | |
3582 | rimsky | 43 | /** |
44 | * Finds out the clock frequency of the current CPU. |
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45 | * |
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46 | * @param node node representing the current CPU in the OFW tree |
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47 | * @return clock frequency if "node" is the current CPU and no error |
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48 | * occurs, -1 if "node" is not the current CPU or on error |
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49 | */ |
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50 | static int find_cpu_frequency(ofw_tree_node_t *node) |
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51 | { |
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52 | ofw_tree_property_t *prop; |
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53 | uint32_t mid; |
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54 | |||
55 | /* 'upa-portid' for US, 'portid' for US-III, 'cpuid' for US-IV */ |
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56 | prop = ofw_tree_getprop(node, "upa-portid"); |
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57 | if ((!prop) || (!prop->value)) |
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58 | prop = ofw_tree_getprop(node, "portid"); |
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59 | if ((!prop) || (!prop->value)) |
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60 | prop = ofw_tree_getprop(node, "cpuid"); |
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61 | |||
62 | if (prop && prop->value) { |
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63 | mid = *((uint32_t *) prop->value); |
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64 | if (mid == CPU->arch.mid) { |
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65 | prop = ofw_tree_getprop(node, "clock-frequency"); |
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66 | if (prop && prop->value) { |
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67 | return *((uint32_t *) prop->value); |
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68 | } |
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69 | } |
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70 | } |
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71 | |||
72 | return -1; |
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73 | } |
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74 | |||
2049 | jermar | 75 | /** Perform sparc64 specific initialization of the processor structure for the |
76 | * current processor. |
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77 | */ |
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640 | jermar | 78 | void cpu_arch_init(void) |
79 | { |
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1899 | jermar | 80 | ofw_tree_node_t *node; |
81 | uint32_t clock_frequency = 0; |
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3479 | rimsky | 82 | icbus_config_t icbus_config; |
1899 | jermar | 83 | |
3479 | rimsky | 84 | icbus_config.value = icbus_config_read(); |
85 | CPU->arch.mid = icbus_config.mid; |
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1903 | jermar | 86 | |
1917 | jermar | 87 | /* |
88 | * Detect processor frequency. |
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89 | */ |
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3582 | rimsky | 90 | if (is_us() || is_us_iii()) { |
91 | node = ofw_tree_find_child_by_device_type(cpus_parent(), "cpu"); |
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92 | while (node) { |
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93 | int f = find_cpu_frequency(node); |
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94 | if (f != -1) |
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95 | clock_frequency = (uint32_t) f; |
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96 | node = ofw_tree_find_peer_by_device_type(node, "cpu"); |
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1899 | jermar | 97 | } |
3582 | rimsky | 98 | } else if (is_us_iv()) { |
99 | node = ofw_tree_find_child(cpus_parent(), "cmp"); |
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100 | while (node) { |
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101 | int f; |
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3618 | rimsky | 102 | f = find_cpu_frequency( |
103 | ofw_tree_find_child(node, "cpu@0")); |
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3582 | rimsky | 104 | if (f != -1) |
105 | clock_frequency = (uint32_t) f; |
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3618 | rimsky | 106 | f = find_cpu_frequency( |
107 | ofw_tree_find_child(node, "cpu@1")); |
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3582 | rimsky | 108 | if (f != -1) |
109 | clock_frequency = (uint32_t) f; |
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110 | node = ofw_tree_find_peer_by_name(node, "cmp"); |
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111 | } |
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1899 | jermar | 112 | } |
3582 | rimsky | 113 | |
1899 | jermar | 114 | CPU->arch.clock_frequency = clock_frequency; |
115 | tick_init(); |
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640 | jermar | 116 | } |
117 | |||
1899 | jermar | 118 | /** Read version information from the current processor. */ |
640 | jermar | 119 | void cpu_identify(void) |
120 | { |
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121 | CPU->arch.ver.value = ver_read(); |
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122 | } |
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123 | |||
1899 | jermar | 124 | /** Print version information for a processor. |
125 | * |
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1903 | jermar | 126 | * This function is called by the bootstrap processor. |
127 | * |
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2049 | jermar | 128 | * @param m Processor structure of the CPU for which version information is to |
129 | * be printed. |
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1899 | jermar | 130 | */ |
640 | jermar | 131 | void cpu_print_report(cpu_t *m) |
132 | { |
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133 | char *manuf, *impl; |
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134 | |||
1903 | jermar | 135 | switch (m->arch.ver.manuf) { |
136 | case MANUF_FUJITSU: |
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640 | jermar | 137 | manuf = "Fujitsu"; |
138 | break; |
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1903 | jermar | 139 | case MANUF_ULTRASPARC: |
640 | jermar | 140 | manuf = "UltraSPARC"; |
141 | break; |
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1903 | jermar | 142 | case MANUF_SUN: |
640 | jermar | 143 | manuf = "Sun"; |
144 | break; |
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1903 | jermar | 145 | default: |
640 | jermar | 146 | manuf = "Unknown"; |
147 | break; |
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148 | } |
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149 | |||
150 | switch (CPU->arch.ver.impl) { |
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1903 | jermar | 151 | case IMPL_ULTRASPARCI: |
640 | jermar | 152 | impl = "UltraSPARC I"; |
153 | break; |
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1903 | jermar | 154 | case IMPL_ULTRASPARCII: |
640 | jermar | 155 | impl = "UltraSPARC II"; |
156 | break; |
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1903 | jermar | 157 | case IMPL_ULTRASPARCII_I: |
640 | jermar | 158 | impl = "UltraSPARC IIi"; |
159 | break; |
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1903 | jermar | 160 | case IMPL_ULTRASPARCII_E: |
640 | jermar | 161 | impl = "UltraSPARC IIe"; |
162 | break; |
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1903 | jermar | 163 | case IMPL_ULTRASPARCIII: |
640 | jermar | 164 | impl = "UltraSPARC III"; |
165 | break; |
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3489 | rimsky | 166 | case IMPL_ULTRASPARCIII_PLUS: |
167 | impl = "UltraSPARC III+"; |
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168 | break; |
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169 | case IMPL_ULTRASPARCIII_I: |
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170 | impl = "UltraSPARC IIIi"; |
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171 | break; |
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172 | case IMPL_ULTRASPARCIV: |
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173 | impl = "UltraSPARC IV"; |
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174 | break; |
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1903 | jermar | 175 | case IMPL_ULTRASPARCIV_PLUS: |
640 | jermar | 176 | impl = "UltraSPARC IV+"; |
177 | break; |
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1903 | jermar | 178 | case IMPL_SPARC64V: |
640 | jermar | 179 | impl = "SPARC 64V"; |
180 | break; |
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1903 | jermar | 181 | default: |
640 | jermar | 182 | impl = "Unknown"; |
183 | break; |
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184 | } |
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185 | |||
3071 | decky | 186 | printf("cpu%d: manuf=%s, impl=%s, mask=%d (%d MHz)\n", m->id, manuf, |
2049 | jermar | 187 | impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000); |
640 | jermar | 188 | } |
1702 | cejka | 189 | |
1731 | jermar | 190 | /** @} |
1702 | cejka | 191 | */ |