1 /* 1
2 * CPU-version specific code
3 *
4 * Copyright (C) 2007-2009 Michal Simek <monst
5 * Copyright (C) 2006-2009 PetaLogix
6 *
7 * This file is subject to the terms and condi
8 * License. See the file "COPYING" in the main
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, vo
29 {
30 char *fpga_family = "Unknown";
31 char *cpu_ver = "Unknown";
32 int i;
33
34 /* Denormalised to get the fpga family
35 for (i = 0; family_string_lookup[i].s
36 if (cpuinfo.fpga_family_code =
37 fpga_family = (char *)
38 break;
39 }
40 }
41
42 /* Denormalised to get the hw version
43 for (i = 0; cpu_ver_lookup[i].s != NUL
44 if (cpuinfo.ver_code == cpu_ve
45 cpu_ver = (char *)cpu_
46 break;
47 }
48 }
49
50 seq_printf(m,
51 "CPU-Family: MicroBlaze\n"
52 "FPGA-Arch: %s\n"
53 "CPU-Ver: %s, %s endian\
54 "CPU-MHz: %d.%02d\n"
55 "BogoMips: %lu.%02lu\n",
56 fpga_family,
57 cpu_ver,
58 cpuinfo.endian ? "little" :
59 cpuinfo.cpu_clock_freq / 10
60 cpuinfo.cpu_clock_freq % 10
61 loops_per_jiffy / (500000 /
62 (loops_per_jiffy / (5000 /
63
64 seq_printf(m,
65 "HW:\n Shift:\t\t%s\n"
66 " MSR:\t\t%s\n"
67 " PCMP:\t\t%s\n"
68 " DIV:\t\t%s\n",
69 (cpuinfo.use_instr & PVR0_U
70 (cpuinfo.use_instr & PVR2_U
71 (cpuinfo.use_instr & PVR2_U
72 (cpuinfo.use_instr & PVR0_U
73
74 seq_printf(m, " MMU:\t\t%x\n", cpuinfo
75
76 seq_printf(m,
77 " MUL:\t\t%s\n"
78 " FPU:\t\t%s\n",
79 (cpuinfo.use_mult & PVR2_US
80 (cpuinfo.use_mult & PVR0_US
81 (cpuinfo.use_fpu & PVR2_USE
82 (cpuinfo.use_fpu & PVR0_USE
83
84 seq_printf(m,
85 " Exc:\t\t%s%s%s%s%s%s%s%s\
86 (cpuinfo.use_exc & PVR2_OPC
87 (cpuinfo.use_exc & PVR2_UNA
88 (cpuinfo.use_exc & PVR2_ILL
89 (cpuinfo.use_exc & PVR2_IOP
90 (cpuinfo.use_exc & PVR2_DOP
91 (cpuinfo.use_exc & PVR2_DIV
92 (cpuinfo.use_exc & PVR2_FPU
93 (cpuinfo.use_exc & PVR2_USE
94
95 seq_printf(m,
96 "Stream-insns:\t%sprivilege
97 cpuinfo.mmu_privins ? "un"
98
99 if (cpuinfo.use_icache)
100 seq_printf(m,
101 "Icache:\t\t%ukB\tl
102 cpuinfo.icache_size
103 cpuinfo.icache_line
104 else
105 seq_puts(m, "Icache:\t\tno\n")
106
107 if (cpuinfo.use_dcache) {
108 seq_printf(m,
109 "Dcache:\t\t%ukB\tl
110 cpuinfo.dcache_size
111 cpuinfo.dcache_line
112 seq_puts(m, "Dcache-Policy:\t"
113 if (cpuinfo.dcache_wb)
114 seq_puts(m, "write-bac
115 else
116 seq_puts(m, "write-thr
117 } else {
118 seq_puts(m, "Dcache:\t\tno\n")
119 }
120
121 seq_printf(m,
122 "HW-Debug:\t%s\n",
123 cpuinfo.hw_debug ? "yes" :
124
125 seq_printf(m,
126 "PVR-USR1:\t%02x\n"
127 "PVR-USR2:\t%08x\n",
128 cpuinfo.pvr_user1,
129 cpuinfo.pvr_user2);
130
131 seq_printf(m, "Page size:\t%lu\n", PAG
132
133 return 0;
134 }
135
136 static void *c_start(struct seq_file *m, loff_
137 {
138 int i = *pos;
139
140 return i < NR_CPUS ? (void *) (i + 1)
141 }
142
143 static void *c_next(struct seq_file *m, void *
144 {
145 ++*pos;
146 return c_start(m, pos);
147 }
148
149 static void c_stop(struct seq_file *m, void *v
150 {
151 }
152
153 const struct seq_operations cpuinfo_op = {
154 .start = c_start,
155 .next = c_next,
156 .stop = c_stop,
157 .show = show_cpuinfo,
158 };
159
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