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151 lines
4.0 KiB
151 lines
4.0 KiB
// SPDX-License-Identifier: GPL-2.0 |
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#include <linux/seq_file.h> |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <asm/machvec.h> |
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#include <asm/processor.h> |
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static const char *cpu_name[] = { |
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[CPU_SH7201] = "SH7201", |
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[CPU_SH7203] = "SH7203", [CPU_SH7263] = "SH7263", |
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[CPU_SH7264] = "SH7264", [CPU_SH7269] = "SH7269", |
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[CPU_SH7206] = "SH7206", [CPU_SH7619] = "SH7619", |
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[CPU_SH7705] = "SH7705", [CPU_SH7706] = "SH7706", |
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[CPU_SH7707] = "SH7707", [CPU_SH7708] = "SH7708", |
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[CPU_SH7709] = "SH7709", [CPU_SH7710] = "SH7710", |
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[CPU_SH7712] = "SH7712", [CPU_SH7720] = "SH7720", |
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[CPU_SH7721] = "SH7721", [CPU_SH7729] = "SH7729", |
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[CPU_SH7750] = "SH7750", [CPU_SH7750S] = "SH7750S", |
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[CPU_SH7750R] = "SH7750R", [CPU_SH7751] = "SH7751", |
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[CPU_SH7751R] = "SH7751R", [CPU_SH7760] = "SH7760", |
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[CPU_SH4_202] = "SH4-202", [CPU_SH4_501] = "SH4-501", |
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[CPU_SH7763] = "SH7763", [CPU_SH7770] = "SH7770", |
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[CPU_SH7780] = "SH7780", [CPU_SH7781] = "SH7781", |
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[CPU_SH7343] = "SH7343", [CPU_SH7785] = "SH7785", |
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[CPU_SH7786] = "SH7786", [CPU_SH7757] = "SH7757", |
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[CPU_SH7722] = "SH7722", [CPU_SHX3] = "SH-X3", |
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[CPU_MXG] = "MX-G", [CPU_SH7723] = "SH7723", |
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[CPU_SH7366] = "SH7366", [CPU_SH7724] = "SH7724", |
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[CPU_SH7372] = "SH7372", [CPU_SH7734] = "SH7734", |
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[CPU_J2] = "J2", |
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[CPU_SH_NONE] = "Unknown" |
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}; |
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const char *get_cpu_subtype(struct sh_cpuinfo *c) |
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{ |
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return cpu_name[c->type]; |
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} |
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EXPORT_SYMBOL(get_cpu_subtype); |
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#ifdef CONFIG_PROC_FS |
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/* Symbolic CPU flags, keep in sync with asm/cpu-features.h */ |
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static const char *cpu_flags[] = { |
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"none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr", |
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"ptea", "llsc", "l2", "op32", "pteaex", NULL |
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}; |
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static void show_cpuflags(struct seq_file *m, struct sh_cpuinfo *c) |
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{ |
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unsigned long i; |
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seq_printf(m, "cpu flags\t:"); |
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if (!c->flags) { |
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seq_printf(m, " %s\n", cpu_flags[0]); |
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return; |
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} |
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for (i = 0; cpu_flags[i]; i++) |
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if ((c->flags & (1 << i))) |
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seq_printf(m, " %s", cpu_flags[i+1]); |
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seq_printf(m, "\n"); |
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} |
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static void show_cacheinfo(struct seq_file *m, const char *type, |
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struct cache_info info) |
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{ |
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unsigned int cache_size; |
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cache_size = info.ways * info.sets * info.linesz; |
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seq_printf(m, "%s size\t: %2dKiB (%d-way)\n", |
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type, cache_size >> 10, info.ways); |
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} |
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/* |
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* Get CPU information for use by the procfs. |
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*/ |
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static int show_cpuinfo(struct seq_file *m, void *v) |
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{ |
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struct sh_cpuinfo *c = v; |
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unsigned int cpu = c - cpu_data; |
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if (!cpu_online(cpu)) |
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return 0; |
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if (cpu == 0) |
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seq_printf(m, "machine\t\t: %s\n", get_system_type()); |
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else |
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seq_printf(m, "\n"); |
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seq_printf(m, "processor\t: %d\n", cpu); |
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seq_printf(m, "cpu family\t: %s\n", init_utsname()->machine); |
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seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype(c)); |
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if (c->cut_major == -1) |
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seq_printf(m, "cut\t\t: unknown\n"); |
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else if (c->cut_minor == -1) |
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seq_printf(m, "cut\t\t: %d.x\n", c->cut_major); |
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else |
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seq_printf(m, "cut\t\t: %d.%d\n", c->cut_major, c->cut_minor); |
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show_cpuflags(m, c); |
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seq_printf(m, "cache type\t: "); |
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/* |
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* Check for what type of cache we have, we support both the |
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* unified cache on the SH-2 and SH-3, as well as the harvard |
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* style cache on the SH-4. |
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*/ |
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if (c->icache.flags & SH_CACHE_COMBINED) { |
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seq_printf(m, "unified\n"); |
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show_cacheinfo(m, "cache", c->icache); |
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} else { |
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seq_printf(m, "split (harvard)\n"); |
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show_cacheinfo(m, "icache", c->icache); |
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show_cacheinfo(m, "dcache", c->dcache); |
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} |
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/* Optional secondary cache */ |
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if (c->flags & CPU_HAS_L2_CACHE) |
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show_cacheinfo(m, "scache", c->scache); |
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seq_printf(m, "address sizes\t: %u bits physical\n", c->phys_bits); |
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seq_printf(m, "bogomips\t: %lu.%02lu\n", |
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c->loops_per_jiffy/(500000/HZ), |
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(c->loops_per_jiffy/(5000/HZ)) % 100); |
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return 0; |
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} |
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static void *c_start(struct seq_file *m, loff_t *pos) |
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{ |
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return *pos < NR_CPUS ? cpu_data + *pos : NULL; |
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} |
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static void *c_next(struct seq_file *m, void *v, loff_t *pos) |
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{ |
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++*pos; |
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return c_start(m, pos); |
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} |
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static void c_stop(struct seq_file *m, void *v) |
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{ |
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} |
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const struct seq_operations cpuinfo_op = { |
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.start = c_start, |
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.next = c_next, |
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.stop = c_stop, |
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.show = show_cpuinfo, |
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}; |
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#endif /* CONFIG_PROC_FS */
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