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_SH7264]	= "SH7264",	[CPU_SH7269]	= "SH7269",
 11	[CPU_SH7206]	= "SH7206",	[CPU_SH7619]	= "SH7619",
 12	[CPU_SH7705]	= "SH7705",	[CPU_SH7706]	= "SH7706",
 13	[CPU_SH7707]	= "SH7707",	[CPU_SH7708]	= "SH7708",
 14	[CPU_SH7709]	= "SH7709",	[CPU_SH7710]	= "SH7710",
 15	[CPU_SH7712]	= "SH7712",	[CPU_SH7720]	= "SH7720",
 16	[CPU_SH7721]	= "SH7721",	[CPU_SH7729]	= "SH7729",
 17	[CPU_SH7750]	= "SH7750",	[CPU_SH7750S]	= "SH7750S",
 18	[CPU_SH7750R]	= "SH7750R",	[CPU_SH7751]	= "SH7751",
 19	[CPU_SH7751R]	= "SH7751R",	[CPU_SH7760]	= "SH7760",
 20	[CPU_SH4_202]	= "SH4-202",	[CPU_SH4_501]	= "SH4-501",
 21	[CPU_SH7763]	= "SH7763",	[CPU_SH7770]	= "SH7770",
 22	[CPU_SH7780]	= "SH7780",	[CPU_SH7781]	= "SH7781",
 23	[CPU_SH7343]	= "SH7343",	[CPU_SH7785]	= "SH7785",
 24	[CPU_SH7786]	= "SH7786",	[CPU_SH7757]	= "SH7757",
 25	[CPU_SH7722]	= "SH7722",	[CPU_SHX3]	= "SH-X3",
 26	[CPU_SH5_101]	= "SH5-101",	[CPU_SH5_103]	= "SH5-103",
 27	[CPU_MXG]	= "MX-G",	[CPU_SH7723]	= "SH7723",
 28	[CPU_SH7366]	= "SH7366",	[CPU_SH7724]	= "SH7724",
 29	[CPU_SH7372]	= "SH7372",	[CPU_SH7734]	= "SH7734",
 30	[CPU_SH_NONE]	= "Unknown"
 31};
 32
 33const char *get_cpu_subtype(struct sh_cpuinfo *c)
 34{
 35	return cpu_name[c->type];
 36}
 37EXPORT_SYMBOL(get_cpu_subtype);
 38
 39#ifdef CONFIG_PROC_FS
 40/* Symbolic CPU flags, keep in sync with asm/cpu-features.h */
 41static const char *cpu_flags[] = {
 42	"none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr",
 43	"ptea", "llsc", "l2", "op32", "pteaex", NULL
 44};
 45
 46static void show_cpuflags(struct seq_file *m, struct sh_cpuinfo *c)
 47{
 48	unsigned long i;
 49
 50	seq_printf(m, "cpu flags\t:");
 51
 52	if (!c->flags) {
 53		seq_printf(m, " %s\n", cpu_flags[0]);
 54		return;
 55	}
 56
 57	for (i = 0; cpu_flags[i]; i++)
 58		if ((c->flags & (1 << i)))
 59			seq_printf(m, " %s", cpu_flags[i+1]);
 60
 61	seq_printf(m, "\n");
 62}
 63
 64static void show_cacheinfo(struct seq_file *m, const char *type,
 65			   struct cache_info info)
 66{
 67	unsigned int cache_size;
 68
 69	cache_size = info.ways * info.sets * info.linesz;
 70
 71	seq_printf(m, "%s size\t: %2dKiB (%d-way)\n",
 72		   type, cache_size >> 10, info.ways);
 73}
 74
 75/*
 76 *	Get CPU information for use by the procfs.
 77 */
 78static int show_cpuinfo(struct seq_file *m, void *v)
 79{
 80	struct sh_cpuinfo *c = v;
 81	unsigned int cpu = c - cpu_data;
 82
 83	if (!cpu_online(cpu))
 84		return 0;
 85
 86	if (cpu == 0)
 87		seq_printf(m, "machine\t\t: %s\n", get_system_type());
 88	else
 89		seq_printf(m, "\n");
 90
 91	seq_printf(m, "processor\t: %d\n", cpu);
 92	seq_printf(m, "cpu family\t: %s\n", init_utsname()->machine);
 93	seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype(c));
 94	if (c->cut_major == -1)
 95		seq_printf(m, "cut\t\t: unknown\n");
 96	else if (c->cut_minor == -1)
 97		seq_printf(m, "cut\t\t: %d.x\n", c->cut_major);
 98	else
 99		seq_printf(m, "cut\t\t: %d.%d\n", c->cut_major, c->cut_minor);
100
101	show_cpuflags(m, c);
102
103	seq_printf(m, "cache type\t: ");
104
105	/*
106	 * Check for what type of cache we have, we support both the
107	 * unified cache on the SH-2 and SH-3, as well as the harvard
108	 * style cache on the SH-4.
109	 */
110	if (c->icache.flags & SH_CACHE_COMBINED) {
111		seq_printf(m, "unified\n");
112		show_cacheinfo(m, "cache", c->icache);
113	} else {
114		seq_printf(m, "split (harvard)\n");
115		show_cacheinfo(m, "icache", c->icache);
116		show_cacheinfo(m, "dcache", c->dcache);
117	}
118
119	/* Optional secondary cache */
120	if (c->flags & CPU_HAS_L2_CACHE)
121		show_cacheinfo(m, "scache", c->scache);
122
123	seq_printf(m, "address sizes\t: %u bits physical\n", c->phys_bits);
124
125	seq_printf(m, "bogomips\t: %lu.%02lu\n",
126		     c->loops_per_jiffy/(500000/HZ),
127		     (c->loops_per_jiffy/(5000/HZ)) % 100);
128
129	return 0;
130}
131
132static void *c_start(struct seq_file *m, loff_t *pos)
133{
134	return *pos < NR_CPUS ? cpu_data + *pos : NULL;
135}
136static void *c_next(struct seq_file *m, void *v, loff_t *pos)
137{
138	++*pos;
139	return c_start(m, pos);
140}
141static void c_stop(struct seq_file *m, void *v)
142{
143}
144const struct seq_operations cpuinfo_op = {
145	.start	= c_start,
146	.next	= c_next,
147	.stop	= c_stop,
148	.show	= show_cpuinfo,
149};
150#endif /* CONFIG_PROC_FS */