Rev 3 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | /* Project: OSLib |
| 2 | * Description: The OS Construction Kit |
||
| 3 | * Date: 1.6.2000 |
||
| 4 | * Idea by: Luca Abeni & Gerardo Lamastra |
||
| 5 | * |
||
| 6 | * OSLib is an SO project aimed at developing a common, easy-to-use |
||
| 7 | * low-level infrastructure for developing OS kernels and Embedded |
||
| 8 | * Applications; it partially derives from the HARTIK project but it |
||
| 9 | * currently is independently developed. |
||
| 10 | * |
||
| 11 | * OSLib is distributed under GPL License, and some of its code has |
||
| 12 | * been derived from the Linux kernel source; also some important |
||
| 13 | * ideas come from studying the DJGPP go32 extender. |
||
| 14 | * |
||
| 15 | * We acknowledge the Linux Community, Free Software Foundation, |
||
| 16 | * D.J. Delorie and all the other developers who believe in the |
||
| 17 | * freedom of software and ideas. |
||
| 18 | * |
||
| 19 | * For legalese, check out the included GPL license. |
||
| 20 | */ |
||
| 21 | |||
| 22 | /* CPU detection code */ |
||
| 23 | |||
| 24 | #include <ll/i386/hw-data.h> |
||
| 25 | #include <ll/i386/hw-arch.h> |
||
| 26 | #include <ll/i386/mem.h> |
||
| 27 | |||
| 40 | pj | 28 | FILE(Cpu-C); |
| 2 | pj | 29 | |
| 40 | pj | 30 | INLINE_OP void cpuid(DWORD a, DWORD *outa, DWORD *outb, DWORD *outc, DWORD *outd) |
| 2 | pj | 31 | { |
| 32 | #ifdef __OLD_GNU__ |
||
| 40 | pj | 33 | __asm__ __volatile__ (".byte 0x0F,0xA2" |
| 2 | pj | 34 | #else |
| 40 | pj | 35 | __asm__ __volatile__ ("cpuid" |
| 2 | pj | 36 | #endif |
| 40 | pj | 37 | : "=a" (*outa), |
| 38 | "=b" (*outb), |
||
| 39 | "=c" (*outc), |
||
| 40 | "=d" (*outd) |
||
| 41 | : "a" (a)); |
||
| 2 | pj | 42 | } |
| 43 | |||
| 44 | void X86_get_CPU(struct ll_cpuInfo *p) |
||
| 45 | { |
||
| 40 | pj | 46 | DWORD tmp; |
| 2 | pj | 47 | |
| 40 | pj | 48 | memset(p, 0, sizeof(struct ll_cpuInfo)); |
| 49 | if (X86_is386()) { |
||
| 50 | p->X86_cpu = 3; |
||
| 51 | |||
| 52 | return; |
||
| 2 | pj | 53 | } |
| 40 | pj | 54 | if (X86_hasCPUID()) { |
| 55 | p->X86_cpuIdFlag = 1; |
||
| 56 | p->X86_cpu = 5; |
||
| 57 | cpuid(0, &tmp, &(p->X86_vendor_1), |
||
| 58 | &(p->X86_vendor_3), |
||
| 59 | &(p->X86_vendor_2)); |
||
| 60 | if (tmp >= 1) { |
||
| 61 | cpuid(1, &(p->X86_signature), |
||
| 62 | &(p->X86_IntelFeature_1), |
||
| 63 | &(p->X86_IntelFeature_2), |
||
| 64 | &(p->X86_StandardFeature)); |
||
| 65 | } |
||
| 66 | } else { |
||
| 67 | p->X86_cpu = 4; |
||
| 68 | if (X86_isCyrix()) { |
||
| 69 | /* Err... Adjust IT!!!! */ |
||
| 70 | p->X86_cpu = 11; |
||
| 71 | } |
||
| 72 | /* Need tests for AMD and others... */ |
||
| 2 | pj | 73 | } |
| 74 | } |