| 1 | /*************************************************************************** |
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| 2 | * Copyright (c) 2006-2007, Broadcom Corporation |
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| 3 | * All Rights Reserved |
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| 4 | * Confidential Property of Broadcom Corporation |
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| 5 | * |
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| 6 | * THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED SOFTWARE LICENSE |
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| 7 | * AGREEMENT BETWEEN THE USER AND BROADCOM. YOU HAVE NO RIGHT TO USE OR |
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| 8 | * EXPLOIT THIS MATERIAL EXCEPT SUBJECT TO THE TERMS OF SUCH AN AGREEMENT. |
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| 9 | * |
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| 10 | * $brcm_Workfile: bperf_counter.c $ |
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| 11 | * $brcm_Revision: 8 $ |
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| 12 | * $brcm_Date: 1/15/07 10:50a $ |
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| 13 | * |
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| 14 | * Module Description: |
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| 15 | * |
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| 16 | * Perfomance counter module |
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| 17 | * |
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| 18 | * Revision History: |
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| 19 | * |
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| 20 | * $brcm_Log: /BSEAV/lib/bprofile/bperf_counter.c $ |
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| 21 | * |
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| 22 | * 8 1/15/07 10:50a vsilyaev |
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| 23 | * PR 25997: Added 7038 performance counters |
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| 24 | * |
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| 25 | * 7 12/22/06 12:03p vsilyaev |
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| 26 | * PR 26792: Added rac_access, rac_prefetch and rac_hits configurations |
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| 27 | * for the peformance counter |
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| 28 | * |
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| 29 | * 6 12/14/06 4:38p vsilyaev |
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| 30 | * PR 25997: Added counter configuration to capture issue rate |
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| 31 | * |
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| 32 | * 5 12/13/06 7:46p vsilyaev |
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| 33 | * PR 25997: Removed debug output |
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| 34 | * |
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| 35 | * 4 12/8/06 7:24p vsilyaev |
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| 36 | * PR 25997: Fixed warning |
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| 37 | * |
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| 38 | * 3 12/7/06 2:44p vsilyaev |
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| 39 | * PR 25997: Added fixes for 3.4 GCC compiler |
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| 40 | * |
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| 41 | * 2 12/5/06 11:08a vsilyaev |
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| 42 | * PR 25997: Improved perf counter interface |
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| 43 | * |
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| 44 | * 1 12/1/06 5:58p vsilyaev |
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| 45 | * PR 25997: CPU perfomance counter interface |
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| 46 | * |
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| 47 | * |
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| 48 | *******************************************************************************/ |
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| 49 | #include "bstd.h" |
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| 50 | #include "bkni.h" |
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| 51 | #include "bperf_counter.h" |
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| 52 | #include "biobits.h" |
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| 53 | |
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| 54 | BDBG_MODULE(bperf_counter); |
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| 55 | |
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| 56 | |
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| 57 | static const char b_insructions[] = "Instructions"; |
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| 58 | static const char b_cycles[] = "Cycles"; |
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| 59 | static const char b_dcache_miss[]= "D-Cache miss"; |
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| 60 | |
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| 61 | #if B_PERF_BMIPS3300 |
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| 62 | /* bcmips3300-arch.pdf pages 63..66 */ |
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| 63 | #define B_ICACHE_MOD_ID 0x06 |
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| 64 | #define B_ICACHE_ID 0x00 |
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| 65 | #define B_ICACHE_HIT 0x06 |
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| 66 | #define B_ICACHE_MISS 0x05 |
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| 67 | |
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| 68 | #define B_DCACHE_MOD_ID 0x04 |
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| 69 | #define B_DCACHE_ID 0x01 |
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| 70 | #define B_DCACHE_HIT 0x0A |
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| 71 | #define B_DCACHE_MISS 0x09 |
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| 72 | |
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| 73 | #define B_RAC_MOD_ID 0x0B |
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| 74 | #define B_RAC_ACCESS_ID 0x00 |
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| 75 | #define B_RAC_ACCESS 0x42 |
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| 76 | #define B_RAC_PREFETCH_ID 0x01 |
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| 77 | #define B_RAC_PREFETCH 0x4B |
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| 78 | |
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| 79 | #define B_BIU_MOD_ID 0x01 |
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| 80 | #define B_RAC_HIT_ID 0x02 |
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| 81 | #define B_RAC_HIT 0x45 |
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| 82 | |
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| 83 | #define B_CYCLES 0x12 |
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| 84 | #define B_INSTRUCTIONS 0x11 |
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| 85 | |
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| 86 | const bperf_counter_mode bperf_counter_dcache = { |
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| 87 | { |
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| 88 | b_dcache_miss, |
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| 89 | "D-Cache hit", |
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| 90 | b_insructions, |
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| 91 | b_cycles |
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| 92 | }, |
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| 93 | { |
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| 94 | /* $25 #6 */ |
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| 95 | B_SET_BIT(PCE, 1 /* enable */, 31) | |
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| 96 | B_SET_BIT(magic, 1 /* enable */, 9) | |
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| 97 | B_SET_BIT(PCSD, 0 /* enable */, 8) | |
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| 98 | B_SET_BITS(ModID, B_DCACHE_MOD_ID, 5, 2) | |
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| 99 | B_SET_BITS(SetID, B_DCACHE_ID, 1, 0), |
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| 100 | |
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| 101 | /* $25 #4 */ |
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| 102 | B_SET_BIT(CE, 1 /* enable */, 15) | |
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| 103 | B_SET_BITS(EVT, B_DCACHE_MISS, 8, 2) | |
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| 104 | B_SET_BIT(TIE, 0 /* disable */, 0) | |
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| 105 | |
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| 106 | B_SET_BIT(CE, 1 /* enable */, 15+16) | |
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| 107 | B_SET_BITS(EVT, B_DCACHE_HIT, 8+16, 2+16) | |
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| 108 | B_SET_BIT(TIE, 0 /* disable */, 0+16), |
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| 109 | |
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| 110 | /* $25 #5 */ |
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| 111 | B_SET_BIT(CE, 1 /* enable */, 15) | |
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| 112 | B_SET_BITS(EVT, B_INSTRUCTIONS, 8, 2) | |
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| 113 | B_SET_BIT(TIE, 0 /* disable */, 0) | |
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| 114 | |
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| 115 | B_SET_BIT(CE, 1 /* enable */, 15+16) | |
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| 116 | B_SET_BITS(EVT, B_CYCLES, 8+16, 2+16) | |
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| 117 | B_SET_BIT(TIE, 0 /* disable */, 0+16) |
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| 118 | } |
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| 119 | }; |
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| 120 | |
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| 121 | const bperf_counter_mode bperf_counter_instructions = { |
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| 122 | { |
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| 123 | b_insructions, |
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| 124 | b_dcache_miss, |
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| 125 | b_insructions, |
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| 126 | b_cycles |
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| 127 | }, |
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| 128 | { |
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| 129 | /* $25 #6 */ |
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| 130 | B_SET_BIT(PCE, 1 /* enable */, 31) | |
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| 131 | B_SET_BIT(magic, 1 /* enable */, 9) | |
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| 132 | B_SET_BIT(PCSD, 0 /* enable */, 8) | |
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| 133 | B_SET_BITS(ModID, B_DCACHE_MOD_ID, 5, 2) | |
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| 134 | B_SET_BITS(SetID, B_DCACHE_ID, 1, 0), |
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| 135 | |
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| 136 | /* $25 #4 */ |
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| 137 | B_SET_BIT(CE, 1 /* enable */, 15) | |
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| 138 | B_SET_BITS(EVT, B_INSTRUCTIONS, 8, 2) | |
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| 139 | B_SET_BIT(TIE, 0 /* disable */, 0) | |
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| 140 | |
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| 141 | B_SET_BIT(CE, 1 /* enable */, 15+16) | |
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| 142 | B_SET_BITS(EVT, B_DCACHE_MISS, 8+16, 2+16) | |
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| 143 | B_SET_BIT(TIE, 0 /* disable */, 0+16), |
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| 144 | |
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| 145 | /* $25 #5 */ |
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| 146 | B_SET_BIT(CE, 1 /* enable */, 15) | |
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| 147 | B_SET_BITS(EVT, B_INSTRUCTIONS, 8, 2) | |
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| 148 | B_SET_BIT(TIE, 0 /* disable */, 0) | |
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| 149 | |
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| 150 | B_SET_BIT(CE, 1 /* enable */, 15+16) | |
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| 151 | B_SET_BITS(EVT, B_CYCLES, 8+16, 2+16) | |
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| 152 | B_SET_BIT(TIE, 0 /* disable */, 0+16) |
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| 153 | } |
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| 154 | }; |
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| 155 | |
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| 156 | const bperf_counter_mode bperf_counter_icache = { |
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| 157 | { |
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| 158 | "I-Cache miss", |
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| 159 | "I-Cache hit", |
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| 160 | b_insructions, |
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| 161 | b_cycles |
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| 162 | }, |
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| 163 | { |
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| 164 | /* $25 #6 */ |
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| 165 | B_SET_BIT(PCE, 1 /* enable */, 31) | |
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| 166 | B_SET_BIT(magic, 1 /* enable */, 9) | |
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| 167 | B_SET_BIT(PCSD, 0 /* enable */, 8) | |
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| 168 | B_SET_BITS(ModID, B_ICACHE_MOD_ID, 5, 2) | |
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| 169 | B_SET_BITS(SetID, B_ICACHE_ID, 1, 0), |
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| 170 | |
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| 171 | /* $25 #4 */ |
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| 172 | B_SET_BIT(CE, 1 /* enable */, 15) | |
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| 173 | B_SET_BITS(EVT, B_ICACHE_MISS, 8, 2) | |
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| 174 | B_SET_BIT(TIE, 0 /* disable */, 0) | |
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| 175 | |
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| 176 | B_SET_BIT(CE, 1 /* enable */, 15+16) | |
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| 177 | B_SET_BITS(EVT, B_ICACHE_HIT, 8+16, 2+16) | |
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| 178 | B_SET_BIT(TIE, 0 /* disable */, 0+16), |
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| 179 | |
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| 180 | /* $25 #5 */ |
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| 181 | B_SET_BIT(CE, 1 /* enable */, 15) | |
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| 182 | B_SET_BITS(EVT, B_INSTRUCTIONS, 8, 2) | |
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| 183 | B_SET_BIT(TIE, 0 /* disable */, 0) | |
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| 184 | |
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| 185 | B_SET_BIT(CE, 1 /* enable */, 15+16) | |
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| 186 | B_SET_BITS(EVT, B_CYCLES, 8+16, 2+16) | |
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| 187 | B_SET_BIT(TIE, 0 /* disable */, 0+16) |
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| 188 | } |
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| 189 | }; |
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| 190 | |
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| 191 | const bperf_counter_mode bperf_counter_rac_access = { |
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| 192 | { |
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| 193 | "RAC access", |
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| 194 | b_insructions, |
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| 195 | b_insructions, |
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| 196 | b_cycles |
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| 197 | }, |
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| 198 | { |
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| 199 | /* $25 #6 */ |
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| 200 | B_SET_BIT(PCE, 1 /* enable */, 31) | |
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| 201 | B_SET_BIT(magic, 1 /* enable */, 9) | |
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| 202 | B_SET_BIT(PCSD, 0 /* enable */, 8) | |
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| 203 | B_SET_BITS(ModID, B_RAC_MOD_ID, 5, 2) | |
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| 204 | B_SET_BITS(SetID, B_RAC_ACCESS_ID, 1, 0), |
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| 205 | |
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| 206 | /* $25 #4 */ |
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| 207 | B_SET_BIT(CE, 1 /* enable */, 15) | |
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| 208 | B_SET_BITS(EVT, B_RAC_ACCESS, 8, 2) | |
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| 209 | B_SET_BIT(TIE, 0 /* disable */, 0) | |
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| 210 | |
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| 211 | B_SET_BIT(CE, 1 /* enable */, 15+16) | |
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| 212 | B_SET_BITS(EVT, B_INSTRUCTIONS, 8+16, 2+16) | |
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| 213 | B_SET_BIT(TIE, 0 /* disable */, 0+16), |
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| 214 | |
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| 215 | /* $25 #5 */ |
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| 216 | B_SET_BIT(CE, 1 /* enable */, 15) | |
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| 217 | B_SET_BITS(EVT, B_INSTRUCTIONS, 8, 2) | |
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| 218 | B_SET_BIT(TIE, 0 /* disable */, 0) | |
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| 219 | |
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| 220 | B_SET_BIT(CE, 1 /* enable */, 15+16) | |
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| 221 | B_SET_BITS(EVT, B_CYCLES, 8+16, 2+16) | |
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| 222 | B_SET_BIT(TIE, 0 /* disable */, 0+16) |
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| 223 | } |
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| 224 | }; |
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| 225 | |
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| 226 | const bperf_counter_mode bperf_counter_rac_prefetch = { |
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| 227 | { |
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| 228 | "RAC prefetch", |
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| 229 | b_insructions, |
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| 230 | b_insructions, |
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| 231 | b_cycles |
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| 232 | }, |
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| 233 | { |
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| 234 | /* $25 #6 */ |
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| 235 | B_SET_BIT(PCE, 1 /* enable */, 31) | |
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| 236 | B_SET_BIT(magic, 1 /* enable */, 9) | |
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| 237 | B_SET_BIT(PCSD, 0 /* enable */, 8) | |
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| 238 | B_SET_BITS(ModID, B_RAC_MOD_ID, 5, 2) | |
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| 239 | B_SET_BITS(SetID, B_RAC_PREFETCH_ID, 1, 0), |
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| 240 | |
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| 241 | /* $25 #4 */ |
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| 242 | B_SET_BIT(CE, 1 /* enable */, 15) | |
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| 243 | B_SET_BITS(EVT, B_RAC_PREFETCH, 8, 2) | |
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| 244 | B_SET_BIT(TIE, 0 /* disable */, 0) | |
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| 245 | |
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| 246 | B_SET_BIT(CE, 1 /* enable */, 15+16) | |
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| 247 | B_SET_BITS(EVT, B_INSTRUCTIONS, 8+16, 2+16) | |
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| 248 | B_SET_BIT(TIE, 0 /* disable */, 0+16), |
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| 249 | |
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| 250 | /* $25 #5 */ |
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| 251 | B_SET_BIT(CE, 1 /* enable */, 15) | |
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| 252 | B_SET_BITS(EVT, B_INSTRUCTIONS, 8, 2) | |
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| 253 | B_SET_BIT(TIE, 0 /* disable */, 0) | |
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| 254 | |
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| 255 | B_SET_BIT(CE, 1 /* enable */, 15+16) | |
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| 256 | B_SET_BITS(EVT, B_CYCLES, 8+16, 2+16) | |
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| 257 | B_SET_BIT(TIE, 0 /* disable */, 0+16) |
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| 258 | } |
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| 259 | }; |
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| 260 | |
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| 261 | const bperf_counter_mode bperf_counter_rac_hit = { |
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| 262 | { |
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| 263 | "RAC hits", |
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| 264 | b_insructions, |
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| 265 | b_insructions, |
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| 266 | b_cycles |
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| 267 | }, |
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| 268 | { |
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| 269 | /* $25 #6 */ |
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| 270 | B_SET_BIT(PCE, 1 /* enable */, 31) | |
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| 271 | B_SET_BIT(magic, 1 /* enable */, 9) | |
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| 272 | B_SET_BIT(PCSD, 0 /* enable */, 8) | |
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| 273 | B_SET_BITS(ModID, B_BIU_MOD_ID, 5, 2) | |
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| 274 | B_SET_BITS(SetID, B_RAC_HIT_ID, 1, 0), |
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| 275 | |
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| 276 | /* $25 #4 */ |
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| 277 | B_SET_BIT(CE, 1 /* enable */, 15) | |
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| 278 | B_SET_BITS(EVT, B_RAC_HIT, 8, 2) | |
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| 279 | B_SET_BIT(TIE, 0 /* disable */, 0) | |
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| 280 | |
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| 281 | B_SET_BIT(CE, 1 /* enable */, 15+16) | |
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| 282 | B_SET_BITS(EVT, B_INSTRUCTIONS, 8+16, 2+16) | |
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| 283 | B_SET_BIT(TIE, 0 /* disable */, 0+16), |
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| 284 | |
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| 285 | /* $25 #5 */ |
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| 286 | B_SET_BIT(CE, 1 /* enable */, 15) | |
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| 287 | B_SET_BITS(EVT, B_INSTRUCTIONS, 8, 2) | |
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| 288 | B_SET_BIT(TIE, 0 /* disable */, 0) | |
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| 289 | |
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| 290 | B_SET_BIT(CE, 1 /* enable */, 15+16) | |
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| 291 | B_SET_BITS(EVT, B_CYCLES, 8+16, 2+16) | |
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| 292 | B_SET_BIT(TIE, 0 /* disable */, 0+16) |
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| 293 | } |
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| 294 | }; |
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| 295 | #elif B_PERF_MIPSR5K |
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| 296 | /* MD00012-2B-5K-SUM-02.08.pdf pages 146..150 */ |
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| 297 | #define B_EVENT_CYCLES 0 |
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| 298 | #define B_EVENT_0_INST_FETCHED 1 |
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| 299 | #define B_EVENT_1_INST_EXECUTED 1 |
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| 300 | #define B_EVENT_CACHE_OPS 2 |
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| 301 | #define B_EVENT_STORES 3 |
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| 302 | #define B_EVENT_COND_STORES 4 |
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| 303 | #define B_EVENT_0_FAIL_STORES 5 |
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| 304 | #define B_EVENT_1_FPU_OPS 5 |
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| 305 | #define B_EVENT_0_BRANCHES 6 |
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| 306 | #define B_EVENT_1_DCACHE_EVICTED 6 |
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| 307 | #define B_EVENT_0_ITLB_MISS 7 |
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| 308 | #define B_EVENT_1_TLB_MISS_EXC 7 |
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| 309 | #define B_EVENT_0_DTLB_MISS 8 |
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| 310 | #define B_EVENT_1_BRANCH_MISS 8 |
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| 311 | #define B_EVENT_0_ICACHE_MISS 9 |
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| 312 | #define B_EVENT_1_DCACHE_MISS 9 |
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| 313 | #define B_EVENT_0_INST_SCHED 10 |
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| 314 | #define B_EVENT_1_INST_STALL 10 |
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| 315 | #define B_EVENT_0_DUAL_ISSUE 14 |
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| 316 | #define B_EVENT_0_INST_EXECUTED 15 |
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| 317 | #define B_EVENT_1_INST_COP2 15 |
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| 318 | |
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| 319 | const bperf_counter_mode bperf_counter_dcache = { |
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| 320 | { |
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| 321 | "I-Cache miss", |
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| 322 | b_dcache_miss |
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| 323 | }, { |
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| 324 | /* $25 0 */ |
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| 325 | B_SET_BITS(Event, B_EVENT_0_ICACHE_MISS, 8, 5) | |
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| 326 | B_SET_BIT(IE, 1, 4) | |
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| 327 | B_SET_BIT(U, 1, 3) | |
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| 328 | B_SET_BIT(S, 1, 2) | |
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| 329 | B_SET_BIT(K, 1, 1) | |
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| 330 | B_SET_BIT(EXL, 1, 0), |
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| 331 | |
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| 332 | /* $25 2 */ |
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| 333 | B_SET_BITS(Event, B_EVENT_1_DCACHE_MISS, 8, 5) | |
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| 334 | B_SET_BIT(IE, 1, 4) | |
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| 335 | B_SET_BIT(U, 1, 3) | |
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| 336 | B_SET_BIT(S, 1, 2) | |
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| 337 | B_SET_BIT(K, 1, 1) | |
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| 338 | B_SET_BIT(EXL, 1, 0), |
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| 339 | |
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| 340 | /* unused */ |
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| 341 | 0 |
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| 342 | } |
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| 343 | }; |
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| 344 | |
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| 345 | const bperf_counter_mode bperf_counter_icache = { |
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| 346 | { |
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| 347 | "I-Cache miss", |
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| 348 | b_dcache_miss |
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| 349 | }, { |
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| 350 | /* $25 0 */ |
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| 351 | B_SET_BITS(Event, B_EVENT_0_ICACHE_MISS, 8, 5) | |
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| 352 | B_SET_BIT(IE, 1, 4) | |
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| 353 | B_SET_BIT(U, 1, 3) | |
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| 354 | B_SET_BIT(S, 1, 2) | |
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| 355 | B_SET_BIT(K, 1, 1) | |
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| 356 | B_SET_BIT(EXL, 1, 0), |
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| 357 | |
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| 358 | /* $25 2 */ |
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| 359 | B_SET_BITS(Event, B_EVENT_1_DCACHE_MISS, 8, 5) | |
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| 360 | B_SET_BIT(IE, 1, 4) | |
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| 361 | B_SET_BIT(U, 1, 3) | |
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| 362 | B_SET_BIT(S, 1, 2) | |
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| 363 | B_SET_BIT(K, 1, 1) | |
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| 364 | B_SET_BIT(EXL, 1, 0), |
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| 365 | |
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| 366 | /* unused */ |
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| 367 | 0 |
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| 368 | } |
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| 369 | }; |
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| 370 | |
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| 371 | const bperf_counter_mode bperf_counter_instructions = { |
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| 372 | { |
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| 373 | b_insructions, |
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| 374 | b_cycles |
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| 375 | }, |
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| 376 | { |
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| 377 | /* $25 0 */ |
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| 378 | B_SET_BITS(Event, B_EVENT_0_INST_EXECUTED, 8, 5) | |
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| 379 | B_SET_BIT(IE, 1, 4) | |
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| 380 | B_SET_BIT(U, 1, 3) | |
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| 381 | B_SET_BIT(S, 1, 2) | |
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| 382 | B_SET_BIT(K, 1, 1) | |
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| 383 | B_SET_BIT(EXL, 1, 0), |
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| 384 | |
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| 385 | /* $25 2 */ |
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| 386 | B_SET_BITS(Event, B_EVENT_CYCLES, 8, 5) | |
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| 387 | B_SET_BIT(IE, 1, 4) | |
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| 388 | B_SET_BIT(U, 1, 3) | |
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| 389 | B_SET_BIT(S, 1, 2) | |
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| 390 | B_SET_BIT(K, 1, 1) | |
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| 391 | B_SET_BIT(EXL, 1, 0), |
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| 392 | |
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| 393 | /* unused */ |
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| 394 | 0 |
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| 395 | } |
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| 396 | }; |
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| 397 | |
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| 398 | #endif |
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| 399 | |
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| 400 | static const bperf_counter_mode *b_perf_mode = NULL; |
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| 401 | |
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| 402 | #define bcm_write_perf(sel, value) \ |
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| 403 | { __asm__ __volatile__(".set\tpush\n\t" \ |
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| 404 | ".set\tmips32\n\t" \ |
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| 405 | "mtc0\t%0, $25, " #sel "\n\t" \ |
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| 406 | ".set\tpop\n\t" \ |
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| 407 | : /* none */ \ |
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| 408 | : "r" ((unsigned int)value)); \ |
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| 409 | } |
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| 410 | |
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| 411 | |
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| 412 | int |
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| 413 | b_perf_init(const bperf_counter_mode *mode) |
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| 414 | { |
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| 415 | BDBG_ASSERT(mode); |
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| 416 | #if B_PERF_BMIPS3300 |
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| 417 | BDBG_MSG(("perf_init %#x %#x %#x",mode->config[0],mode->config[1],mode->config[2])); |
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| 418 | bcm_write_perf(6, mode->config[0]); |
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| 419 | bcm_write_perf(4, mode->config[1]); |
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| 420 | bcm_write_perf(5, mode->config[2]); |
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| 421 | |
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| 422 | bcm_write_perf(0, 0) /* PerfCount0 reset to 0 (it is a decrementing count) */ |
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| 423 | bcm_write_perf(1, 0) /* PerfCount1 reset to 0 (it is a decrementing count) */ |
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| 424 | bcm_write_perf(2, 0) /* PerfCount2 reset to 0 (it is a decrementing count) */ |
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| 425 | bcm_write_perf(3, 0) /* PerfCount3 reset to 0 (it is a decrementing count) */ |
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| 426 | #elif B_PERF_MIPSR5K |
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| 427 | BDBG_MSG(("perf_init %#x %#x",mode->config[0],mode->config[1])); |
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| 428 | bcm_write_perf(0, mode->config[0]); |
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| 429 | bcm_write_perf(2, mode->config[1]); |
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| 430 | |
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| 431 | bcm_write_perf(1, 0) /* PerfCount0 reset to 0 */ |
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| 432 | bcm_write_perf(3, 0) /* PerfCount1 reset to 0 */ |
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| 433 | #endif |
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| 434 | |
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| 435 | b_perf_mode = mode; |
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| 436 | |
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| 437 | return 0; |
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| 438 | } |
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| 439 | |
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| 440 | |
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| 441 | void |
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| 442 | bperf_print(const bperf_counter_mode *mode, const bperf_sample *stop, const bperf_sample *start) |
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| 443 | { |
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| 444 | unsigned i; |
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| 445 | if (mode==NULL) { |
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| 446 | mode = b_perf_mode; |
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| 447 | } |
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| 448 | BDBG_ASSERT(mode); |
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| 449 | for(i=0;i<BPERF_N_COUNTERS;i++) { |
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| 450 | unsigned diff = bperf_sample_diff(stop->data[i], start->data[i]); |
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| 451 | BKNI_Printf("%c%s(%u) ", ' ', mode->counter_names[i], diff); |
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| 452 | } |
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| 453 | BKNI_Printf("\n"); |
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| 454 | return; |
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| 455 | } |
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| 456 | |
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| 457 | const bperf_counter_mode * |
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| 458 | bperf_get_mode(void) |
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| 459 | { |
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| 460 | return b_perf_mode; |
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| 461 | } |
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| 462 | |
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