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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 42 | pj | 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 | /* Code & data fot CPU identification */ |
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| 23 | |||
| 24 | #ifndef __LL_I386_HW_ARCH_H__ |
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| 25 | #define __LL_I386_HW_ARCH_H__ |
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| 26 | |||
| 27 | #include <ll/i386/defs.h> |
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| 28 | BEGIN_DEF |
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| 29 | |||
| 30 | #include <ll/i386/hw-data.h> |
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| 31 | #include <ll/i386/hw-instr.h> |
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| 32 | #include <ll/i386/hw-func.h> |
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| 33 | |||
| 34 | /* The following structure is filled up by the ll_init() and can be */ |
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| 35 | /* read by the kernel modules to know about the architecture */ |
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| 36 | /* Each time a new hardware CPU is added to the ll layer, you have to */ |
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| 37 | /* define a new XXX_ARCH structure, whose first field is a char *arch */ |
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| 38 | /* This is used to identify the architecture, then subsequent field */ |
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| 39 | /* can be decoded!! */ |
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| 40 | |||
| 41 | /* WARNING: I tried to use bitfields, but this caused am INTO error?!? */ |
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| 42 | /* only when using GNU-C!! So i preferred to use standard DWORD flags */ |
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| 43 | |||
| 44 | /* Capabilities */ |
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| 45 | #define LL_X86_HAS_INVLPG 0x01 |
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| 46 | #define LL_X86_HAS_CPUID 0x02 |
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| 47 | #define LL_X86_HAS_FPU 0x04 |
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| 48 | #define LL_X86_INTERNAL_FPU 0x08 |
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| 49 | #define LL_X86_HAS_TSTAMP 0x10 |
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| 50 | |||
| 51 | /* Bugs */ |
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| 52 | #define LL_X86_FDIV_BUG 0x01 |
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| 53 | #define LL_X86_F00F_BUG 0x02 |
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| 54 | |||
| 55 | typedef struct { |
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| 56 | char *arch; |
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| 57 | int cpu; /* 0,1,2,3,4,5,6 -> |
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| 58 | 8086/8,80186,80286,80386,80486,P5,PII o Overdrive */ |
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| 59 | int fpu; /* 0,1,2,3 -> None,8087,80287,80387 */ |
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| 60 | char *model; /* Dx, Dx2, ... */ |
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| 61 | char vendor[12]; /* Intel, Cyrix, AMD or unknown */ |
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| 62 | DWORD capabilities; |
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| 63 | DWORD bugs; |
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| 64 | /* BUGs!! Warning: Currently, no workaround is available! |
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| 65 | */ |
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| 66 | int f00f_bug; |
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| 67 | int fdiv_bug; |
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| 68 | } X86_ARCH; |
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| 69 | |||
| 70 | struct ll_cpuInfo { |
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| 71 | DWORD X86_cpu; |
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| 72 | DWORD X86_cpuIdFlag; |
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| 73 | DWORD X86_vendor_1; |
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| 74 | DWORD X86_vendor_2; |
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| 75 | DWORD X86_vendor_3; |
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| 76 | DWORD X86_signature; |
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| 77 | DWORD X86_IntelFeature_1; |
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| 78 | DWORD X86_IntelFeature_2; |
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| 79 | DWORD X86_StandardFeature; |
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| 80 | }; |
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| 81 | |||
| 82 | typedef struct { |
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| 83 | char *arch; |
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| 84 | /* Tonino, fill up this stuff! */ |
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| 85 | } AXP_ARCH; |
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| 86 | |||
| 87 | typedef union { |
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| 88 | char *arch; |
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| 89 | X86_ARCH x86; |
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| 90 | AXP_ARCH axp; |
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| 91 | } LL_ARCH; |
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| 92 | |||
| 93 | void X86_get_CPU(struct ll_cpuInfo *p); |
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| 94 | void X86_get_FPU(void); |
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| 95 | int X86_is386(void); |
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| 96 | int X86_isCyrix(void); |
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| 97 | int X86_hasCPUID(void); |
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| 98 | |||
| 99 | extern LL_ARCH ll_arch; |
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| 100 | |||
| 101 | END_DEF |
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| 102 | #endif /* __LL_I386_HW_ARCH_H__ */ |