1 /* $NetBSD: cacheinfo.h,v 1.1 2003/04/25 21:54:30 fvdl Exp $ */ 2 3 #ifndef _X86_CACHEINFO_H 4 #define _X86_CACHEINFO_H 5 6 struct x86_cache_info { 7 uint8_t cai_index; 8 uint8_t cai_desc; 9 uint8_t cai_associativity; 10 u_int cai_totalsize; /* #entries for TLB, bytes for cache */ 11 u_int cai_linesize; /* or page size for TLB */ 12 const char *cai_string; 13 }; 14 15 #define CAI_ITLB 0 /* Instruction TLB (4K pages) */ 16 #define CAI_ITLB2 1 /* Instruction TLB (2/4M pages) */ 17 #define CAI_DTLB 2 /* Data TLB (4K pages) */ 18 #define CAI_DTLB2 3 /* Data TLB (2/4M pages) */ 19 #define CAI_ICACHE 4 /* Instruction cache */ 20 #define CAI_DCACHE 5 /* Data cache */ 21 #define CAI_L2CACHE 6 /* Level 2 cache */ 22 23 #define CAI_COUNT 7 24 25 struct cpu_info; 26 27 const struct x86_cache_info *cache_info_lookup(const struct x86_cache_info *, 28 u_int8_t); 29 void amd_cpu_cacheinfo(struct cpu_info *); 30 void x86_print_cacheinfo(struct cpu_info *); 31 32 /* 33 * AMD Cache Info: 34 * 35 * Athlon, Duron: 36 * 37 * Function 8000.0005 L1 TLB/Cache Information 38 * EAX -- L1 TLB 2/4MB pages 39 * EBX -- L1 TLB 4K pages 40 * ECX -- L1 D-cache 41 * EDX -- L1 I-cache 42 * 43 * Function 8000.0006 L2 TLB/Cache Information 44 * EAX -- L2 TLB 2/4MB pages 45 * EBX -- L2 TLB 4K pages 46 * ECX -- L2 Unified cache 47 * EDX -- reserved 48 * 49 * K5, K6: 50 * 51 * Function 8000.0005 L1 TLB/Cache Information 52 * EAX -- reserved 53 * EBX -- TLB 4K pages 54 * ECX -- L1 D-cache 55 * EDX -- L1 I-cache 56 * 57 * K6-III: 58 * 59 * Function 8000.0006 L2 Cache Information 60 * EAX -- reserved 61 * EBX -- reserved 62 * ECX -- L2 Unified cache 63 * EDX -- reserved 64 */ 65 66 /* L1 TLB 2/4MB pages */ 67 #define AMD_L1_EAX_DTLB_ASSOC(x) (((x) >> 24) & 0xff) 68 #define AMD_L1_EAX_DTLB_ENTRIES(x) (((x) >> 16) & 0xff) 69 #define AMD_L1_EAX_ITLB_ASSOC(x) (((x) >> 8) & 0xff) 70 #define AMD_L1_EAX_ITLB_ENTRIES(x) ( (x) & 0xff) 71 72 /* L1 TLB 4K pages */ 73 #define AMD_L1_EBX_DTLB_ASSOC(x) (((x) >> 24) & 0xff) 74 #define AMD_L1_EBX_DTLB_ENTRIES(x) (((x) >> 16) & 0xff) 75 #define AMD_L1_EBX_ITLB_ASSOC(x) (((x) >> 8) & 0xff) 76 #define AMD_L1_EBX_ITLB_ENTRIES(x) ( (x) & 0xff) 77 78 /* L1 Data Cache */ 79 #define AMD_L1_ECX_DC_SIZE(x) ((((x) >> 24) & 0xff) * 1024) 80 #define AMD_L1_ECX_DC_ASSOC(x) (((x) >> 16) & 0xff) 81 #define AMD_L1_ECX_DC_LPT(x) (((x) >> 8) & 0xff) 82 #define AMD_L1_ECX_DC_LS(x) ( (x) & 0xff) 83 84 /* L1 Instruction Cache */ 85 #define AMD_L1_EDX_IC_SIZE(x) ((((x) >> 24) & 0xff) * 1024) 86 #define AMD_L1_EDX_IC_ASSOC(x) (((x) >> 16) & 0xff) 87 #define AMD_L1_EDX_IC_LPT(x) (((x) >> 8) & 0xff) 88 #define AMD_L1_EDX_IC_LS(x) ( (x) & 0xff) 89 90 /* Note for L2 TLB -- if the upper 16 bits are 0, it is a unified TLB */ 91 92 /* L2 TLB 2/4MB pages */ 93 #define AMD_L2_EAX_DTLB_ASSOC(x) (((x) >> 28) & 0xf) 94 #define AMD_L2_EAX_DTLB_ENTRIES(x) (((x) >> 16) & 0xfff) 95 #define AMD_L2_EAX_IUTLB_ASSOC(x) (((x) >> 12) & 0xf) 96 #define AMD_L2_EAX_IUTLB_ENTRIES(x) ( (x) & 0xfff) 97 98 /* L2 TLB 4K pages */ 99 #define AMD_L2_EBX_DTLB_ASSOC(x) (((x) >> 28) & 0xf) 100 #define AMD_L2_EBX_DTLB_ENTRIES(x) (((x) >> 16) & 0xfff) 101 #define AMD_L2_EBX_IUTLB_ASSOC(x) (((x) >> 12) & 0xf) 102 #define AMD_L2_EBX_IUTLB_ENTRIES(x) ( (x) & 0xfff) 103 104 /* L2 Cache */ 105 #define AMD_L2_ECX_C_SIZE(x) ((((x) >> 16) & 0xffff) * 1024) 106 #define AMD_L2_ECX_C_ASSOC(x) (((x) >> 12) & 0xf) 107 #define AMD_L2_ECX_C_LPT(x) (((x) >> 8) & 0xf) 108 #define AMD_L2_ECX_C_LS(x) ( (x) & 0xff) 109 110 #endif /* _X86_CACHEINFO_H */ 111