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1 #ifndef _ASM_X86_REQUIRED_FEATURES_H |
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2 #define _ASM_X86_REQUIRED_FEATURES_H |
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3 |
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4 /* Define minimum CPUID feature set for kernel These bits are checked |
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5 really early to actually display a visible error message before the |
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6 kernel dies. Make sure to assign features to the proper mask! |
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7 |
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8 Some requirements that are not in CPUID yet are also in the |
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9 CONFIG_X86_MINIMUM_CPU_FAMILY which is checked too. |
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10 |
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11 The real information is in arch/x86/Kconfig.cpu, this just converts |
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12 the CONFIGs into a bitmask */ |
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13 |
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14 #ifndef CONFIG_MATH_EMULATION |
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15 # define NEED_FPU (1<<(X86_FEATURE_FPU & 31)) |
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16 #else |
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17 # define NEED_FPU 0 |
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18 #endif |
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19 |
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20 #if defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64) |
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21 # define NEED_PAE (1<<(X86_FEATURE_PAE & 31)) |
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22 #else |
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23 # define NEED_PAE 0 |
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24 #endif |
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25 |
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26 #ifdef CONFIG_X86_CMPXCHG64 |
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27 # define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31)) |
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28 #else |
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29 # define NEED_CX8 0 |
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30 #endif |
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31 |
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32 #if defined(CONFIG_X86_CMOV) || defined(CONFIG_X86_64) |
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33 # define NEED_CMOV (1<<(X86_FEATURE_CMOV & 31)) |
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34 #else |
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35 # define NEED_CMOV 0 |
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36 #endif |
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37 |
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38 #ifdef CONFIG_X86_USE_3DNOW |
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39 # define NEED_3DNOW (1<<(X86_FEATURE_3DNOW & 31)) |
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40 #else |
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41 # define NEED_3DNOW 0 |
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42 #endif |
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43 |
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44 #if defined(CONFIG_X86_P6_NOP) || defined(CONFIG_X86_64) |
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45 # define NEED_NOPL (1<<(X86_FEATURE_NOPL & 31)) |
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46 #else |
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47 # define NEED_NOPL 0 |
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48 #endif |
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49 |
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50 #ifdef CONFIG_X86_64 |
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51 #define NEED_PSE 0 |
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52 #define NEED_MSR (1<<(X86_FEATURE_MSR & 31)) |
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53 #define NEED_PGE (1<<(X86_FEATURE_PGE & 31)) |
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54 #define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31)) |
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55 #define NEED_XMM (1<<(X86_FEATURE_XMM & 31)) |
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56 #define NEED_XMM2 (1<<(X86_FEATURE_XMM2 & 31)) |
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57 #define NEED_LM (1<<(X86_FEATURE_LM & 31)) |
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58 #else |
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59 #define NEED_PSE 0 |
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60 #define NEED_MSR 0 |
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61 #define NEED_PGE 0 |
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62 #define NEED_FXSR 0 |
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63 #define NEED_XMM 0 |
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64 #define NEED_XMM2 0 |
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65 #define NEED_LM 0 |
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66 #endif |
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67 |
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68 #define REQUIRED_MASK0 (NEED_FPU|NEED_PSE|NEED_MSR|NEED_PAE|\ |
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69 NEED_CX8|NEED_PGE|NEED_FXSR|NEED_CMOV|\ |
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70 NEED_XMM|NEED_XMM2) |
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71 #define SSE_MASK (NEED_XMM|NEED_XMM2) |
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72 |
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73 #define REQUIRED_MASK1 (NEED_LM|NEED_3DNOW) |
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74 |
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75 #define REQUIRED_MASK2 0 |
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76 #define REQUIRED_MASK3 (NEED_NOPL) |
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77 #define REQUIRED_MASK4 0 |
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78 #define REQUIRED_MASK5 0 |
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79 #define REQUIRED_MASK6 0 |
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80 #define REQUIRED_MASK7 0 |
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81 |
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82 #endif /* _ASM_X86_REQUIRED_FEATURES_H */ |