#include <agnix/agnix.h>#include <agnix/adi/adi.h>#include <agnix/console.h>#include <agnix/math64.h>#include <asm/cpu_ops.h>#include <agnix/ioport.h>Include dependency graph for tsc.c:
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Defines | |
| #define | MOD_NAME "\tTSC: " |
Functions | |
| int __init | tsc_get_speed (void) |
| void __init | cpu_tsc_init (void) |
Variables | |
| chip_s | cpu_chip |
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Definition at line 46 of file tsc.c. References cpu_capable(), MOD_NAME, and printk(). Referenced by cpu_init(). 00047 {
00048 if (cpu_capable(X86_FEATURE_TSC)) {
00049 write_cr4(read_cr4() & (~CPU_CR4_TSD));
00050
00051 if (read_cr4() & CPU_CR4_TSD) {
00052 printk(MOD_NAME "Tsc cannot be enabled\n");
00053 }
00054 }
00055 }
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Definition at line 25 of file tsc.c. References sub_64_64(). Referenced by cpu_get_speed(). 00026 {
00027 u32 tsc[2];
00028 u32 tsc_s[2];
00029 u32 tsc_e[2];
00030
00031 outb(0xb0, 0x43);
00032 outb((i8254_RELOAD_COUNT) & 0xFF, 0x42);
00033 outb((i8254_RELOAD_COUNT >> 8) & 0xFF, 0x42);
00034
00035 rdtsc(tsc_s[0], tsc_s[1]);
00036
00037 while(!(inb(0x61) & 0x20));
00038
00039 rdtsc(tsc_e[0], tsc_e[1]);
00040
00041 sub_64_64(tsc, tsc_e, tsc_s);
00042
00043 return (tsc[0]);
00044 }
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