clk: samsung: Add bus clock for GPU/G3D on Exynos4412
[linux/fpc-iii.git] / arch / sh / kernel / cpu / proc.c
blob85961b4f9c6956cc1e9e6d1ca08f5e6443c1441c
1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/seq_file.h>
3 #include <linux/kernel.h>
4 #include <linux/module.h>
5 #include <asm/machvec.h>
6 #include <asm/processor.h>
8 static const char *cpu_name[] = {
9 [CPU_SH7201] = "SH7201",
10 [CPU_SH7203] = "SH7203", [CPU_SH7263] = "SH7263",
11 [CPU_SH7264] = "SH7264", [CPU_SH7269] = "SH7269",
12 [CPU_SH7206] = "SH7206", [CPU_SH7619] = "SH7619",
13 [CPU_SH7705] = "SH7705", [CPU_SH7706] = "SH7706",
14 [CPU_SH7707] = "SH7707", [CPU_SH7708] = "SH7708",
15 [CPU_SH7709] = "SH7709", [CPU_SH7710] = "SH7710",
16 [CPU_SH7712] = "SH7712", [CPU_SH7720] = "SH7720",
17 [CPU_SH7721] = "SH7721", [CPU_SH7729] = "SH7729",
18 [CPU_SH7750] = "SH7750", [CPU_SH7750S] = "SH7750S",
19 [CPU_SH7750R] = "SH7750R", [CPU_SH7751] = "SH7751",
20 [CPU_SH7751R] = "SH7751R", [CPU_SH7760] = "SH7760",
21 [CPU_SH4_202] = "SH4-202", [CPU_SH4_501] = "SH4-501",
22 [CPU_SH7763] = "SH7763", [CPU_SH7770] = "SH7770",
23 [CPU_SH7780] = "SH7780", [CPU_SH7781] = "SH7781",
24 [CPU_SH7343] = "SH7343", [CPU_SH7785] = "SH7785",
25 [CPU_SH7786] = "SH7786", [CPU_SH7757] = "SH7757",
26 [CPU_SH7722] = "SH7722", [CPU_SHX3] = "SH-X3",
27 [CPU_SH5_101] = "SH5-101", [CPU_SH5_103] = "SH5-103",
28 [CPU_MXG] = "MX-G", [CPU_SH7723] = "SH7723",
29 [CPU_SH7366] = "SH7366", [CPU_SH7724] = "SH7724",
30 [CPU_SH7372] = "SH7372", [CPU_SH7734] = "SH7734",
31 [CPU_J2] = "J2",
32 [CPU_SH_NONE] = "Unknown"
35 const char *get_cpu_subtype(struct sh_cpuinfo *c)
37 return cpu_name[c->type];
39 EXPORT_SYMBOL(get_cpu_subtype);
41 #ifdef CONFIG_PROC_FS
42 /* Symbolic CPU flags, keep in sync with asm/cpu-features.h */
43 static const char *cpu_flags[] = {
44 "none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr",
45 "ptea", "llsc", "l2", "op32", "pteaex", NULL
48 static void show_cpuflags(struct seq_file *m, struct sh_cpuinfo *c)
50 unsigned long i;
52 seq_printf(m, "cpu flags\t:");
54 if (!c->flags) {
55 seq_printf(m, " %s\n", cpu_flags[0]);
56 return;
59 for (i = 0; cpu_flags[i]; i++)
60 if ((c->flags & (1 << i)))
61 seq_printf(m, " %s", cpu_flags[i+1]);
63 seq_printf(m, "\n");
66 static void show_cacheinfo(struct seq_file *m, const char *type,
67 struct cache_info info)
69 unsigned int cache_size;
71 cache_size = info.ways * info.sets * info.linesz;
73 seq_printf(m, "%s size\t: %2dKiB (%d-way)\n",
74 type, cache_size >> 10, info.ways);
78 * Get CPU information for use by the procfs.
80 static int show_cpuinfo(struct seq_file *m, void *v)
82 struct sh_cpuinfo *c = v;
83 unsigned int cpu = c - cpu_data;
85 if (!cpu_online(cpu))
86 return 0;
88 if (cpu == 0)
89 seq_printf(m, "machine\t\t: %s\n", get_system_type());
90 else
91 seq_printf(m, "\n");
93 seq_printf(m, "processor\t: %d\n", cpu);
94 seq_printf(m, "cpu family\t: %s\n", init_utsname()->machine);
95 seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype(c));
96 if (c->cut_major == -1)
97 seq_printf(m, "cut\t\t: unknown\n");
98 else if (c->cut_minor == -1)
99 seq_printf(m, "cut\t\t: %d.x\n", c->cut_major);
100 else
101 seq_printf(m, "cut\t\t: %d.%d\n", c->cut_major, c->cut_minor);
103 show_cpuflags(m, c);
105 seq_printf(m, "cache type\t: ");
108 * Check for what type of cache we have, we support both the
109 * unified cache on the SH-2 and SH-3, as well as the harvard
110 * style cache on the SH-4.
112 if (c->icache.flags & SH_CACHE_COMBINED) {
113 seq_printf(m, "unified\n");
114 show_cacheinfo(m, "cache", c->icache);
115 } else {
116 seq_printf(m, "split (harvard)\n");
117 show_cacheinfo(m, "icache", c->icache);
118 show_cacheinfo(m, "dcache", c->dcache);
121 /* Optional secondary cache */
122 if (c->flags & CPU_HAS_L2_CACHE)
123 show_cacheinfo(m, "scache", c->scache);
125 seq_printf(m, "address sizes\t: %u bits physical\n", c->phys_bits);
127 seq_printf(m, "bogomips\t: %lu.%02lu\n",
128 c->loops_per_jiffy/(500000/HZ),
129 (c->loops_per_jiffy/(5000/HZ)) % 100);
131 return 0;
134 static void *c_start(struct seq_file *m, loff_t *pos)
136 return *pos < NR_CPUS ? cpu_data + *pos : NULL;
138 static void *c_next(struct seq_file *m, void *v, loff_t *pos)
140 ++*pos;
141 return c_start(m, pos);
143 static void c_stop(struct seq_file *m, void *v)
146 const struct seq_operations cpuinfo_op = {
147 .start = c_start,
148 .next = c_next,
149 .stop = c_stop,
150 .show = show_cpuinfo,
152 #endif /* CONFIG_PROC_FS */