1#include <linux/seq_file.h>
2#include <linux/kernel.h>
3#include <linux/module.h>
4#include <asm/machvec.h>
5#include <asm/processor.h>
6
7static const char *cpu_name[] = {
8	[CPU_SH7201]	= "SH7201",
9	[CPU_SH7203]	= "SH7203",	[CPU_SH7263]	= "SH7263",
10	[CPU_SH7206]	= "SH7206",	[CPU_SH7619]	= "SH7619",
11	[CPU_SH7705]	= "SH7705",	[CPU_SH7706]	= "SH7706",
12	[CPU_SH7707]	= "SH7707",	[CPU_SH7708]	= "SH7708",
13	[CPU_SH7709]	= "SH7709",	[CPU_SH7710]	= "SH7710",
14	[CPU_SH7712]	= "SH7712",	[CPU_SH7720]	= "SH7720",
15	[CPU_SH7721]	= "SH7721",	[CPU_SH7729]	= "SH7729",
16	[CPU_SH7750]	= "SH7750",	[CPU_SH7750S]	= "SH7750S",
17	[CPU_SH7750R]	= "SH7750R",	[CPU_SH7751]	= "SH7751",
18	[CPU_SH7751R]	= "SH7751R",	[CPU_SH7760]	= "SH7760",
19	[CPU_SH4_202]	= "SH4-202",	[CPU_SH4_501]	= "SH4-501",
20	[CPU_SH7763]	= "SH7763",	[CPU_SH7770]	= "SH7770",
21	[CPU_SH7780]	= "SH7780",	[CPU_SH7781]	= "SH7781",
22	[CPU_SH7343]	= "SH7343",	[CPU_SH7785]	= "SH7785",
23	[CPU_SH7786]	= "SH7786",	[CPU_SH7757]	= "SH7757",
24	[CPU_SH7722]	= "SH7722",	[CPU_SHX3]	= "SH-X3",
25	[CPU_SH5_101]	= "SH5-101",	[CPU_SH5_103]	= "SH5-103",
26	[CPU_MXG]	= "MX-G",	[CPU_SH7723]	= "SH7723",
27	[CPU_SH7366]	= "SH7366",	[CPU_SH7724]	= "SH7724",
28	[CPU_SH7372]	= "SH7372",	[CPU_SH_NONE]	= "Unknown"
29};
30
31const char *get_cpu_subtype(struct sh_cpuinfo *c)
32{
33	return cpu_name[c->type];
34}
35EXPORT_SYMBOL(get_cpu_subtype);
36
37#ifdef CONFIG_PROC_FS
38/* Symbolic CPU flags, keep in sync with asm/cpu-features.h */
39static const char *cpu_flags[] = {
40	"none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr",
41	"ptea", "llsc", "l2", "op32", "pteaex", NULL
42};
43
44static void show_cpuflags(struct seq_file *m, struct sh_cpuinfo *c)
45{
46	unsigned long i;
47
48	seq_printf(m, "cpu flags\t:");
49
50	if (!c->flags) {
51		seq_printf(m, " %s\n", cpu_flags[0]);
52		return;
53	}
54
55	for (i = 0; cpu_flags[i]; i++)
56		if ((c->flags & (1 << i)))
57			seq_printf(m, " %s", cpu_flags[i+1]);
58
59	seq_printf(m, "\n");
60}
61
62static void show_cacheinfo(struct seq_file *m, const char *type,
63			   struct cache_info info)
64{
65	unsigned int cache_size;
66
67	cache_size = info.ways * info.sets * info.linesz;
68
69	seq_printf(m, "%s size\t: %2dKiB (%d-way)\n",
70		   type, cache_size >> 10, info.ways);
71}
72
73/*
74 *	Get CPU information for use by the procfs.
75 */
76static int show_cpuinfo(struct seq_file *m, void *v)
77{
78	struct sh_cpuinfo *c = v;
79	unsigned int cpu = c - cpu_data;
80
81	if (!cpu_online(cpu))
82		return 0;
83
84	if (cpu == 0)
85		seq_printf(m, "machine\t\t: %s\n", get_system_type());
86	else
87		seq_printf(m, "\n");
88
89	seq_printf(m, "processor\t: %d\n", cpu);
90	seq_printf(m, "cpu family\t: %s\n", init_utsname()->machine);
91	seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype(c));
92	if (c->cut_major == -1)
93		seq_printf(m, "cut\t\t: unknown\n");
94	else if (c->cut_minor == -1)
95		seq_printf(m, "cut\t\t: %d.x\n", c->cut_major);
96	else
97		seq_printf(m, "cut\t\t: %d.%d\n", c->cut_major, c->cut_minor);
98
99	show_cpuflags(m, c);
100
101	seq_printf(m, "cache type\t: ");
102
103	/*
104	 * Check for what type of cache we have, we support both the
105	 * unified cache on the SH-2 and SH-3, as well as the harvard
106	 * style cache on the SH-4.
107	 */
108	if (c->icache.flags & SH_CACHE_COMBINED) {
109		seq_printf(m, "unified\n");
110		show_cacheinfo(m, "cache", c->icache);
111	} else {
112		seq_printf(m, "split (harvard)\n");
113		show_cacheinfo(m, "icache", c->icache);
114		show_cacheinfo(m, "dcache", c->dcache);
115	}
116
117	/* Optional secondary cache */
118	if (c->flags & CPU_HAS_L2_CACHE)
119		show_cacheinfo(m, "scache", c->scache);
120
121	seq_printf(m, "address sizes\t: %u bits physical\n", c->phys_bits);
122
123	seq_printf(m, "bogomips\t: %lu.%02lu\n",
124		     c->loops_per_jiffy/(500000/HZ),
125		     (c->loops_per_jiffy/(5000/HZ)) % 100);
126
127	return 0;
128}
129
130static void *c_start(struct seq_file *m, loff_t *pos)
131{
132	return *pos < NR_CPUS ? cpu_data + *pos : NULL;
133}
134static void *c_next(struct seq_file *m, void *v, loff_t *pos)
135{
136	++*pos;
137	return c_start(m, pos);
138}
139static void c_stop(struct seq_file *m, void *v)
140{
141}
142const struct seq_operations cpuinfo_op = {
143	.start	= c_start,
144	.next	= c_next,
145	.stop	= c_stop,
146	.show	= show_cpuinfo,
147};
148#endif /* CONFIG_PROC_FS */
149