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120 | giacomo | 1 | /* Project: OSLib |
2 | * Description: The OS Construction Kit |
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3 | * Date: 1.6.2000 |
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4 | * Idea by: Luca Abeni & Gerardo Lamastra |
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5 | * |
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6 | * OSLib is an SO project aimed at developing a common, easy-to-use |
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7 | * low-level infrastructure for developing OS kernels and Embedded |
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8 | * Applications; it partially derives from the HARTIK project but it |
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9 | * currently is independently developed. |
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10 | * |
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11 | * OSLib is distributed under GPL License, and some of its code has |
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12 | * been derived from the Linux kernel source; also some important |
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13 | * ideas come from studying the DJGPP go32 extender. |
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14 | * |
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15 | * We acknowledge the Linux Community, Free Software Foundation, |
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16 | * D.J. Delorie and all the other developers who believe in the |
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17 | * freedom of software and ideas. |
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18 | * |
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19 | * For legalese, check out the included GPL license. |
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20 | */ |
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21 | |||
22 | /* Advanced Timer |
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23 | * Date: 8.4.2003 |
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24 | * Author: Giacomo Guidi <giacomo@gandalf.sssup.it> |
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25 | * |
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26 | */ |
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27 | |||
28 | #ifndef __ADVTIMER_H__ |
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29 | #define __ADVTIMER_H__ |
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30 | |||
31 | #include <ll/i386/defs.h> |
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32 | BEGIN_DEF |
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33 | |||
34 | /* TSC */ |
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35 | |||
36 | #define rdtsc(low,high) \ |
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239 | giacomo | 37 | __asm__ __volatile__("xorl %%eax,%%eax\n\t" \ |
242 | giacomo | 38 | "cpuid\n\t" \ |
39 | "rdtsc\n\t" \ |
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40 | "movl %%eax,%%esi\n\t" \ |
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41 | "movl %%edx,%%edi\n\t" \ |
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42 | "xorl %%eax,%%eax\n\t" \ |
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43 | "cpuid" \ |
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44 | : "=S" (low), "=D" (high) \ |
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239 | giacomo | 45 | :: "ebx", "ecx") |
120 | giacomo | 46 | |
47 | #define rdtscll(val) \ |
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239 | giacomo | 48 | __asm__ __volatile__("xorl %%eax,%%eax\n\t" \ |
242 | giacomo | 49 | "cpuid\n\t" \ |
50 | "rdtsc\n\t" \ |
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51 | "pushl %%eax\n\t" \ |
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52 | "pushl %%edx\n\t" \ |
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53 | "xorl %%eax,%%eax\n\t" \ |
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54 | "cpuid\n\t" \ |
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55 | "popl %%edx\n\t" \ |
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56 | "popl %%eax\n\t" \ |
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57 | : "=A" (val) \ |
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239 | giacomo | 58 | :: "ebx","ecx") |
120 | giacomo | 59 | |
299 | giacomo | 60 | #define rdmsr(msr,val1,val2) \ |
61 | __asm__ __volatile__("rdmsr" \ |
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62 | : "=a" (val1), "=d" (val2) \ |
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63 | : "c" (msr)) |
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64 | |||
65 | #define wrmsr(msr,val1,val2) \ |
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66 | __asm__ __volatile__("wrmsr" \ |
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67 | : /* no outputs */ \ |
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68 | : "c" (msr), "a" (val1), "d" (val2)) |
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69 | |||
120 | giacomo | 70 | /* RTC */ |
71 | |||
72 | #define RTC_PORT(x) (0x70 + (x)) |
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73 | |||
74 | #define CMOS_READ(addr,val) \ |
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75 | { \ |
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76 | outp(RTC_PORT(0),(addr)); \ |
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77 | val = inp(RTC_PORT(1)); \ |
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78 | } |
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79 | |||
80 | #define CMOS_WRITE(addr,val) \ |
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81 | { \ |
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82 | outp(RTC_PORT(0),(addr)); \ |
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83 | outp(RTC_PORT(1),(val)); \ |
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84 | } |
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85 | |||
86 | #define RTC_IRQ 8 |
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87 | |||
131 | giacomo | 88 | void ll_init_advtimer(void); |
89 | void ll_restore_CMOS(void); |
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90 | |||
120 | giacomo | 91 | END_DEF |
92 | #endif |