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b0c62724 MS |
1 | /* |
2 | * CPU-version specific code | |
3 | * | |
4 | * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> | |
5 | * Copyright (C) 2006-2009 PetaLogix | |
6 | * | |
7 | * This file is subject to the terms and conditions of the GNU General Public | |
8 | * License. See the file "COPYING" in the main directory of this archive | |
9 | * for more details. | |
10 | */ | |
11 | ||
12 | #include <linux/init.h> | |
13 | #include <linux/string.h> | |
14 | #include <linux/seq_file.h> | |
15 | #include <linux/cpu.h> | |
16 | #include <linux/initrd.h> | |
17 | ||
18 | #include <linux/bug.h> | |
19 | #include <asm/cpuinfo.h> | |
20 | #include <linux/delay.h> | |
21 | #include <linux/io.h> | |
22 | #include <asm/page.h> | |
23 | #include <linux/param.h> | |
24 | #include <asm/pvr.h> | |
25 | #include <asm/sections.h> | |
26 | #include <asm/setup.h> | |
27 | ||
28 | static int show_cpuinfo(struct seq_file *m, void *v) | |
29 | { | |
30 | int count = 0; | |
31 | char *fpga_family = "Unknown"; | |
32 | char *cpu_ver = "Unknown"; | |
33 | int i; | |
34 | ||
35 | /* Denormalised to get the fpga family string */ | |
36 | for (i = 0; family_string_lookup[i].s != NULL; i++) { | |
37 | if (cpuinfo.fpga_family_code == family_string_lookup[i].k) { | |
38 | fpga_family = (char *)family_string_lookup[i].s; | |
39 | break; | |
40 | } | |
41 | } | |
42 | ||
43 | /* Denormalised to get the hw version string */ | |
44 | for (i = 0; cpu_ver_lookup[i].s != NULL; i++) { | |
45 | if (cpuinfo.ver_code == cpu_ver_lookup[i].k) { | |
46 | cpu_ver = (char *)cpu_ver_lookup[i].s; | |
47 | break; | |
48 | } | |
49 | } | |
50 | ||
51 | count = seq_printf(m, | |
52 | "CPU-Family: MicroBlaze\n" | |
53 | "FPGA-Arch: %s\n" | |
8e2ad016 | 54 | "CPU-Ver: %s, %s endian\n" |
b0c62724 MS |
55 | "CPU-MHz: %d.%02d\n" |
56 | "BogoMips: %lu.%02lu\n", | |
57 | fpga_family, | |
58 | cpu_ver, | |
8e2ad016 | 59 | cpuinfo.endian ? "little" : "big", |
b0c62724 MS |
60 | cpuinfo.cpu_clock_freq / |
61 | 1000000, | |
62 | cpuinfo.cpu_clock_freq % | |
63 | 1000000, | |
64 | loops_per_jiffy / (500000 / HZ), | |
65 | (loops_per_jiffy / (5000 / HZ)) % 100); | |
66 | ||
67 | count += seq_printf(m, | |
68 | "HW:\n Shift:\t\t%s\n" | |
69 | " MSR:\t\t%s\n" | |
70 | " PCMP:\t\t%s\n" | |
71 | " DIV:\t\t%s\n", | |
72 | (cpuinfo.use_instr & PVR0_USE_BARREL_MASK) ? "yes" : "no", | |
73 | (cpuinfo.use_instr & PVR2_USE_MSR_INSTR) ? "yes" : "no", | |
74 | (cpuinfo.use_instr & PVR2_USE_PCMP_INSTR) ? "yes" : "no", | |
75 | (cpuinfo.use_instr & PVR0_USE_DIV_MASK) ? "yes" : "no"); | |
76 | ||
77 | count += seq_printf(m, | |
78 | " MMU:\t\t%x\n", | |
79 | cpuinfo.mmu); | |
80 | ||
81 | count += seq_printf(m, | |
82 | " MUL:\t\t%s\n" | |
83 | " FPU:\t\t%s\n", | |
84 | (cpuinfo.use_mult & PVR2_USE_MUL64_MASK) ? "v2" : | |
85 | (cpuinfo.use_mult & PVR0_USE_HW_MUL_MASK) ? "v1" : "no", | |
86 | (cpuinfo.use_fpu & PVR2_USE_FPU2_MASK) ? "v2" : | |
87 | (cpuinfo.use_fpu & PVR0_USE_FPU_MASK) ? "v1" : "no"); | |
88 | ||
89 | count += seq_printf(m, | |
90 | " Exc:\t\t%s%s%s%s%s%s%s%s\n", | |
91 | (cpuinfo.use_exc & PVR2_OPCODE_0x0_ILL_MASK) ? "op0x0 " : "", | |
92 | (cpuinfo.use_exc & PVR2_UNALIGNED_EXC_MASK) ? "unal " : "", | |
93 | (cpuinfo.use_exc & PVR2_ILL_OPCODE_EXC_MASK) ? "ill " : "", | |
94 | (cpuinfo.use_exc & PVR2_IOPB_BUS_EXC_MASK) ? "iopb " : "", | |
95 | (cpuinfo.use_exc & PVR2_DOPB_BUS_EXC_MASK) ? "dopb " : "", | |
96 | (cpuinfo.use_exc & PVR2_DIV_ZERO_EXC_MASK) ? "zero " : "", | |
97 | (cpuinfo.use_exc & PVR2_FPU_EXC_MASK) ? "fpu " : "", | |
98 | (cpuinfo.use_exc & PVR2_USE_FSL_EXC) ? "fsl " : ""); | |
99 | ||
8904976e JW |
100 | count += seq_printf(m, |
101 | "Stream-insns:\t%sprivileged\n", | |
102 | cpuinfo.mmu_privins ? "un" : ""); | |
103 | ||
b0c62724 MS |
104 | if (cpuinfo.use_icache) |
105 | count += seq_printf(m, | |
77543ceb MS |
106 | "Icache:\t\t%ukB\tline length:\t%dB\n", |
107 | cpuinfo.icache_size >> 10, | |
108 | cpuinfo.icache_line_length); | |
b0c62724 MS |
109 | else |
110 | count += seq_printf(m, "Icache:\t\tno\n"); | |
111 | ||
e051af57 | 112 | if (cpuinfo.use_dcache) { |
b0c62724 | 113 | count += seq_printf(m, |
77543ceb MS |
114 | "Dcache:\t\t%ukB\tline length:\t%dB\n", |
115 | cpuinfo.dcache_size >> 10, | |
116 | cpuinfo.dcache_line_length); | |
e051af57 MS |
117 | if (cpuinfo.dcache_wb) |
118 | count += seq_printf(m, "\t\twrite-back\n"); | |
119 | else | |
120 | count += seq_printf(m, "\t\twrite-through\n"); | |
121 | } else | |
b0c62724 MS |
122 | count += seq_printf(m, "Dcache:\t\tno\n"); |
123 | ||
124 | count += seq_printf(m, | |
125 | "HW-Debug:\t%s\n", | |
126 | cpuinfo.hw_debug ? "yes" : "no"); | |
127 | ||
128 | count += seq_printf(m, | |
79533fd4 MS |
129 | "PVR-USR1:\t%02x\n" |
130 | "PVR-USR2:\t%08x\n", | |
b0c62724 MS |
131 | cpuinfo.pvr_user1, |
132 | cpuinfo.pvr_user2); | |
133 | ||
ba9c4f88 | 134 | count += seq_printf(m, "Page size:\t%lu\n", PAGE_SIZE); |
b0c62724 MS |
135 | return 0; |
136 | } | |
137 | ||
138 | static void *c_start(struct seq_file *m, loff_t *pos) | |
139 | { | |
140 | int i = *pos; | |
141 | ||
142 | return i < NR_CPUS ? (void *) (i + 1) : NULL; | |
143 | } | |
144 | ||
145 | static void *c_next(struct seq_file *m, void *v, loff_t *pos) | |
146 | { | |
147 | ++*pos; | |
148 | return c_start(m, pos); | |
149 | } | |
150 | ||
151 | static void c_stop(struct seq_file *m, void *v) | |
152 | { | |
153 | } | |
154 | ||
155 | const struct seq_operations cpuinfo_op = { | |
156 | .start = c_start, | |
157 | .next = c_next, | |
158 | .stop = c_stop, | |
159 | .show = show_cpuinfo, | |
160 | }; |