3c6274b8be
- when /proc/cpuinfo is read procfs retrievs information about cpus from the kernel, formats it and prints it
134 lines
2.1 KiB
C
134 lines
2.1 KiB
C
#include "inc.h"
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#include "../../kernel/arch/i386/include/archconst.h"
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#ifndef CONFIG_MAX_CPUS
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#define CONFIG_MAX_CPUS 1
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#endif
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PRIVATE const char * x86_flag[] = {
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"fpu",
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"vme",
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"de",
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"pse",
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"tsc",
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"msr",
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"pae",
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"mce",
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"cx8",
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"apic",
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"",
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"sep",
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"mtrr",
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"pge",
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"mca",
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"cmov",
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"pat",
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"pse36",
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"psn",
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"clfsh",
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"",
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"dts",
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"acpi",
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"mmx",
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"fxsr",
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"sse",
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"sse2",
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"ss",
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"ht",
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"tm",
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"",
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"pbe",
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"pni",
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"",
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"",
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"monitor",
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"ds_cpl",
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"vmx",
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"smx",
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"est",
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"tm2",
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"ssse3",
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"cid",
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"",
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"",
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"cx16",
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"xtpr",
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"pdcm",
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"",
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"",
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"dca",
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"sse4_1",
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"sse4_2",
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"x2apic",
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"movbe",
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"popcnt",
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"",
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"",
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"xsave",
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"osxsave",
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"",
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"",
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"",
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"",
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};
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PRIVATE void print_cpu_flags(u32_t * flags)
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{
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int i, j;
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for (i = 0; i < 2; i++) {
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for (j = 0; j < 32; j++) {
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if (flags[i] & (1 << j) &&
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x86_flag[i * 32 + j][0])
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buf_printf("%s ", x86_flag[i * 32 + j]);
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}
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}
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buf_printf("\n");
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}
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PRIVATE void print_cpu(struct cpu_info * cpu_info, unsigned id)
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{
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buf_printf("%-16s: %d\n", "processor", id);
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switch (cpu_info->vendor) {
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case CPU_VENDOR_INTEL:
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buf_printf("%-16s: %s\n", "vendor_id", "GenuineIntel");
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buf_printf("%-16s: %s\n", "model name", "Intel");
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break;
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case CPU_VENDOR_AMD:
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buf_printf("%-16s: %s\n", "vendor_id", "AuthenticAMD");
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buf_printf("%-16s: %s\n", "model name", "AMD");
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break;
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default:
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buf_printf("%-16: %s\n", "vendor_id", "unknown");
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}
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buf_printf("%-16s: %d\n", "cpu family", cpu_info->family);
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buf_printf("%-16s: %d\n", "model", cpu_info->model);
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buf_printf("%-16s: %d\n", "stepping", cpu_info->stepping);
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buf_printf("%-16s: %d\n", "cpu MHz", cpu_info->freq);
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buf_printf("%-16s: ", "flags");
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print_cpu_flags(cpu_info->flags);
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buf_printf("\n");
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}
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PUBLIC void root_cpuinfo(void)
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{
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struct cpu_info cpu_info[CONFIG_MAX_CPUS];
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struct machine machine;
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unsigned c;
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if (sys_getmachine(&machine)) {
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printf("PROCFS: cannot get machine\n");
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return;
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}
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if (sys_getcpuinfo(&cpu_info)) {
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printf("PROCFS: cannot get cpu info\n");
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return;
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}
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for (c = 0; c < machine.processors_count; c++)
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print_cpu(&cpu_info[c], c);
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}
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