cpuinfo.c (23460839b983d5d8d47fe90f341599f66523dd81) cpuinfo.c (edebea98777d7090ea14bdce2e38e6798557729d)
1/*
2 * Copyright (C) 2013 Altera Corporation
3 * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
4 *
5 * Based on cpuinfo.c from microblaze
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by

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63 strlcpy(cpuinfo.cpu_impl, str, sizeof(cpuinfo.cpu_impl));
64 else
65 strcpy(cpuinfo.cpu_impl, "<unknown>");
66
67 cpuinfo.has_div = of_property_read_bool(cpu, "altr,has-div");
68 cpuinfo.has_mul = of_property_read_bool(cpu, "altr,has-mul");
69 cpuinfo.has_mulx = of_property_read_bool(cpu, "altr,has-mulx");
70 cpuinfo.has_bmx = of_property_read_bool(cpu, "altr,has-bmx");
1/*
2 * Copyright (C) 2013 Altera Corporation
3 * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
4 *
5 * Based on cpuinfo.c from microblaze
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by

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63 strlcpy(cpuinfo.cpu_impl, str, sizeof(cpuinfo.cpu_impl));
64 else
65 strcpy(cpuinfo.cpu_impl, "<unknown>");
66
67 cpuinfo.has_div = of_property_read_bool(cpu, "altr,has-div");
68 cpuinfo.has_mul = of_property_read_bool(cpu, "altr,has-mul");
69 cpuinfo.has_mulx = of_property_read_bool(cpu, "altr,has-mulx");
70 cpuinfo.has_bmx = of_property_read_bool(cpu, "altr,has-bmx");
71 cpuinfo.has_cdx = of_property_read_bool(cpu, "altr,has-cdx");
71 cpuinfo.mmu = of_property_read_bool(cpu, "altr,has-mmu");
72
73 if (IS_ENABLED(CONFIG_NIOS2_HW_DIV_SUPPORT) && !cpuinfo.has_div)
74 err_cpu("DIV");
75
76 if (IS_ENABLED(CONFIG_NIOS2_HW_MUL_SUPPORT) && !cpuinfo.has_mul)
77 err_cpu("MUL");
78
79 if (IS_ENABLED(CONFIG_NIOS2_HW_MULX_SUPPORT) && !cpuinfo.has_mulx)
80 err_cpu("MULX");
81
82 if (IS_ENABLED(CONFIG_NIOS2_BMX_SUPPORT) && !cpuinfo.has_bmx)
83 err_cpu("BMX");
84
72 cpuinfo.mmu = of_property_read_bool(cpu, "altr,has-mmu");
73
74 if (IS_ENABLED(CONFIG_NIOS2_HW_DIV_SUPPORT) && !cpuinfo.has_div)
75 err_cpu("DIV");
76
77 if (IS_ENABLED(CONFIG_NIOS2_HW_MUL_SUPPORT) && !cpuinfo.has_mul)
78 err_cpu("MUL");
79
80 if (IS_ENABLED(CONFIG_NIOS2_HW_MULX_SUPPORT) && !cpuinfo.has_mulx)
81 err_cpu("MULX");
82
83 if (IS_ENABLED(CONFIG_NIOS2_BMX_SUPPORT) && !cpuinfo.has_bmx)
84 err_cpu("BMX");
85
86 if (IS_ENABLED(CONFIG_NIOS2_CDX_SUPPORT) && !cpuinfo.has_cdx)
87 err_cpu("CDX");
88
85 cpuinfo.tlb_num_ways = fcpu(cpu, "altr,tlb-num-ways");
86 if (!cpuinfo.tlb_num_ways)
87 panic("altr,tlb-num-ways can't be 0. Please check your hardware "
88 "system\n");
89 cpuinfo.icache_line_size = fcpu(cpu, "icache-line-size");
90 cpuinfo.icache_size = fcpu(cpu, "icache-size");
91 if (CONFIG_NIOS2_ICACHE_SIZE != cpuinfo.icache_size)
92 pr_warn("Warning: icache size configuration mismatch "

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143 ((loops_per_jiffy * HZ) / 5000) % 100,
144 (loops_per_jiffy * HZ));
145
146 seq_printf(m,
147 "HW:\n"
148 " MUL:\t\t%s\n"
149 " MULX:\t\t%s\n"
150 " DIV:\t\t%s\n"
89 cpuinfo.tlb_num_ways = fcpu(cpu, "altr,tlb-num-ways");
90 if (!cpuinfo.tlb_num_ways)
91 panic("altr,tlb-num-ways can't be 0. Please check your hardware "
92 "system\n");
93 cpuinfo.icache_line_size = fcpu(cpu, "icache-line-size");
94 cpuinfo.icache_size = fcpu(cpu, "icache-size");
95 if (CONFIG_NIOS2_ICACHE_SIZE != cpuinfo.icache_size)
96 pr_warn("Warning: icache size configuration mismatch "

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147 ((loops_per_jiffy * HZ) / 5000) % 100,
148 (loops_per_jiffy * HZ));
149
150 seq_printf(m,
151 "HW:\n"
152 " MUL:\t\t%s\n"
153 " MULX:\t\t%s\n"
154 " DIV:\t\t%s\n"
151 " BMX:\t\t%s\n",
155 " BMX:\t\t%s\n"
156 " CDX:\t\t%s\n",
152 cpuinfo.has_mul ? "yes" : "no",
153 cpuinfo.has_mulx ? "yes" : "no",
154 cpuinfo.has_div ? "yes" : "no",
157 cpuinfo.has_mul ? "yes" : "no",
158 cpuinfo.has_mulx ? "yes" : "no",
159 cpuinfo.has_div ? "yes" : "no",
155 cpuinfo.has_bmx ? "yes" : "no");
160 cpuinfo.has_bmx ? "yes" : "no",
161 cpuinfo.has_cdx ? "yes" : "no");
156
157 seq_printf(m,
158 "Icache:\t\t%ukB, line length: %u\n",
159 cpuinfo.icache_size >> 10,
160 cpuinfo.icache_line_size);
161
162 seq_printf(m,
163 "Dcache:\t\t%ukB, line length: %u\n",

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162
163 seq_printf(m,
164 "Icache:\t\t%ukB, line length: %u\n",
165 cpuinfo.icache_size >> 10,
166 cpuinfo.icache_line_size);
167
168 seq_printf(m,
169 "Dcache:\t\t%ukB, line length: %u\n",

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