1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright 2009 Paul Mackerras, IBM Corporation. 4 * Copyright 2013 Michael Ellerman, IBM Corporation. 5 * Copyright 2016 Madhavan Srinivasan, IBM Corporation. 6 */ 7 8 #ifndef _LINUX_POWERPC_PERF_ISA207_COMMON_H_ 9 #define _LINUX_POWERPC_PERF_ISA207_COMMON_H_ 10 11 #include <linux/kernel.h> 12 #include <linux/perf_event.h> 13 #include <asm/firmware.h> 14 #include <asm/cputable.h> 15 16 #include "internal.h" 17 18 #define EVENT_EBB_MASK 1ull 19 #define EVENT_EBB_SHIFT PERF_EVENT_CONFIG_EBB_SHIFT 20 #define EVENT_BHRB_MASK 1ull 21 #define EVENT_BHRB_SHIFT 62 22 #define EVENT_WANTS_BHRB (EVENT_BHRB_MASK << EVENT_BHRB_SHIFT) 23 #define EVENT_IFM_MASK 3ull 24 #define EVENT_IFM_SHIFT 60 25 #define EVENT_THR_CMP_SHIFT 40 /* Threshold CMP value */ 26 #define EVENT_THR_CMP_MASK 0x3ff 27 #define EVENT_THR_CTL_SHIFT 32 /* Threshold control value (start/stop) */ 28 #define EVENT_THR_CTL_MASK 0xffull 29 #define EVENT_THR_SEL_SHIFT 29 /* Threshold select value */ 30 #define EVENT_THR_SEL_MASK 0x7 31 #define EVENT_THRESH_SHIFT 29 /* All threshold bits */ 32 #define EVENT_THRESH_MASK 0x1fffffull 33 #define EVENT_SAMPLE_SHIFT 24 /* Sampling mode & eligibility */ 34 #define EVENT_SAMPLE_MASK 0x1f 35 #define EVENT_CACHE_SEL_SHIFT 20 /* L2/L3 cache select */ 36 #define EVENT_CACHE_SEL_MASK 0xf 37 #define EVENT_IS_L1 (4 << EVENT_CACHE_SEL_SHIFT) 38 #define EVENT_PMC_SHIFT 16 /* PMC number (1-based) */ 39 #define EVENT_PMC_MASK 0xf 40 #define EVENT_UNIT_SHIFT 12 /* Unit */ 41 #define EVENT_UNIT_MASK 0xf 42 #define EVENT_COMBINE_SHIFT 11 /* Combine bit */ 43 #define EVENT_COMBINE_MASK 0x1 44 #define EVENT_COMBINE(v) (((v) >> EVENT_COMBINE_SHIFT) & EVENT_COMBINE_MASK) 45 #define EVENT_MARKED_SHIFT 8 /* Marked bit */ 46 #define EVENT_MARKED_MASK 0x1 47 #define EVENT_IS_MARKED (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) 48 #define EVENT_PSEL_MASK 0xff /* PMCxSEL value */ 49 50 /* Bits defined by Linux */ 51 #define EVENT_LINUX_MASK \ 52 ((EVENT_EBB_MASK << EVENT_EBB_SHIFT) | \ 53 (EVENT_BHRB_MASK << EVENT_BHRB_SHIFT) | \ 54 (EVENT_IFM_MASK << EVENT_IFM_SHIFT)) 55 56 #define EVENT_VALID_MASK \ 57 ((EVENT_THRESH_MASK << EVENT_THRESH_SHIFT) | \ 58 (EVENT_SAMPLE_MASK << EVENT_SAMPLE_SHIFT) | \ 59 (EVENT_CACHE_SEL_MASK << EVENT_CACHE_SEL_SHIFT) | \ 60 (EVENT_PMC_MASK << EVENT_PMC_SHIFT) | \ 61 (EVENT_UNIT_MASK << EVENT_UNIT_SHIFT) | \ 62 (EVENT_COMBINE_MASK << EVENT_COMBINE_SHIFT) | \ 63 (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) | \ 64 EVENT_LINUX_MASK | \ 65 EVENT_PSEL_MASK) 66 67 #define ONLY_PLM \ 68 (PERF_SAMPLE_BRANCH_USER |\ 69 PERF_SAMPLE_BRANCH_KERNEL |\ 70 PERF_SAMPLE_BRANCH_HV) 71 72 /* Contants to support power9 raw encoding format */ 73 #define p9_EVENT_COMBINE_SHIFT 10 /* Combine bit */ 74 #define p9_EVENT_COMBINE_MASK 0x3ull 75 #define p9_EVENT_COMBINE(v) (((v) >> p9_EVENT_COMBINE_SHIFT) & p9_EVENT_COMBINE_MASK) 76 #define p9_SDAR_MODE_SHIFT 50 77 #define p9_SDAR_MODE_MASK 0x3ull 78 #define p9_SDAR_MODE(v) (((v) >> p9_SDAR_MODE_SHIFT) & p9_SDAR_MODE_MASK) 79 80 #define p9_EVENT_VALID_MASK \ 81 ((p9_SDAR_MODE_MASK << p9_SDAR_MODE_SHIFT | \ 82 (EVENT_THRESH_MASK << EVENT_THRESH_SHIFT) | \ 83 (EVENT_SAMPLE_MASK << EVENT_SAMPLE_SHIFT) | \ 84 (EVENT_CACHE_SEL_MASK << EVENT_CACHE_SEL_SHIFT) | \ 85 (EVENT_PMC_MASK << EVENT_PMC_SHIFT) | \ 86 (EVENT_UNIT_MASK << EVENT_UNIT_SHIFT) | \ 87 (p9_EVENT_COMBINE_MASK << p9_EVENT_COMBINE_SHIFT) | \ 88 (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) | \ 89 EVENT_LINUX_MASK | \ 90 EVENT_PSEL_MASK)) 91 92 /* Contants to support power10 raw encoding format */ 93 #define p10_SDAR_MODE_SHIFT 22 94 #define p10_SDAR_MODE_MASK 0x3ull 95 #define p10_SDAR_MODE(v) (((v) >> p10_SDAR_MODE_SHIFT) & \ 96 p10_SDAR_MODE_MASK) 97 #define p10_EVENT_L2L3_SEL_MASK 0x1f 98 #define p10_L2L3_SEL_SHIFT 3 99 #define p10_L2L3_EVENT_SHIFT 40 100 #define p10_EVENT_THRESH_MASK 0xffffull 101 #define p10_EVENT_CACHE_SEL_MASK 0x3ull 102 #define p10_EVENT_MMCR3_MASK 0x7fffull 103 #define p10_EVENT_MMCR3_SHIFT 45 104 #define p10_EVENT_RADIX_SCOPE_QUAL_SHIFT 9 105 #define p10_EVENT_RADIX_SCOPE_QUAL_MASK 0x1 106 #define p10_MMCR1_RADIX_SCOPE_QUAL_SHIFT 45 107 108 #define p10_EVENT_VALID_MASK \ 109 ((p10_SDAR_MODE_MASK << p10_SDAR_MODE_SHIFT | \ 110 (p10_EVENT_THRESH_MASK << EVENT_THRESH_SHIFT) | \ 111 (EVENT_SAMPLE_MASK << EVENT_SAMPLE_SHIFT) | \ 112 (p10_EVENT_CACHE_SEL_MASK << EVENT_CACHE_SEL_SHIFT) | \ 113 (EVENT_PMC_MASK << EVENT_PMC_SHIFT) | \ 114 (EVENT_UNIT_MASK << EVENT_UNIT_SHIFT) | \ 115 (p9_EVENT_COMBINE_MASK << p9_EVENT_COMBINE_SHIFT) | \ 116 (p10_EVENT_MMCR3_MASK << p10_EVENT_MMCR3_SHIFT) | \ 117 (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) | \ 118 (p10_EVENT_RADIX_SCOPE_QUAL_MASK << p10_EVENT_RADIX_SCOPE_QUAL_SHIFT) | \ 119 EVENT_LINUX_MASK | \ 120 EVENT_PSEL_MASK)) 121 /* 122 * Layout of constraint bits: 123 * 124 * 60 56 52 48 44 40 36 32 125 * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | 126 * [ fab_match ] [ thresh_cmp ] [ thresh_ctl ] [ ] 127 * | 128 * thresh_sel -* 129 * 130 * 28 24 20 16 12 8 4 0 131 * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | 132 * [ ] | [ ] | [ sample ] [ ] [6] [5] [4] [3] [2] [1] 133 * | | | | | 134 * BHRB IFM -* | | |*radix_scope | Count of events for each PMC. 135 * EBB -* | | p1, p2, p3, p4, p5, p6. 136 * L1 I/D qualifier -* | 137 * nc - number of counters -* 138 * 139 * The PMC fields P1..P6, and NC, are adder fields. As we accumulate constraints 140 * we want the low bit of each field to be added to any existing value. 141 * 142 * Everything else is a value field. 143 */ 144 145 #define CNST_FAB_MATCH_VAL(v) (((v) & EVENT_THR_CTL_MASK) << 56) 146 #define CNST_FAB_MATCH_MASK CNST_FAB_MATCH_VAL(EVENT_THR_CTL_MASK) 147 148 /* We just throw all the threshold bits into the constraint */ 149 #define CNST_THRESH_VAL(v) (((v) & EVENT_THRESH_MASK) << 32) 150 #define CNST_THRESH_MASK CNST_THRESH_VAL(EVENT_THRESH_MASK) 151 152 #define CNST_THRESH_CTL_SEL_VAL(v) (((v) & 0x7ffull) << 32) 153 #define CNST_THRESH_CTL_SEL_MASK CNST_THRESH_CTL_SEL_VAL(0x7ff) 154 155 #define CNST_EBB_VAL(v) (((v) & EVENT_EBB_MASK) << 24) 156 #define CNST_EBB_MASK CNST_EBB_VAL(EVENT_EBB_MASK) 157 158 #define CNST_IFM_VAL(v) (((v) & EVENT_IFM_MASK) << 25) 159 #define CNST_IFM_MASK CNST_IFM_VAL(EVENT_IFM_MASK) 160 161 #define CNST_L1_QUAL_VAL(v) (((v) & 3) << 22) 162 #define CNST_L1_QUAL_MASK CNST_L1_QUAL_VAL(3) 163 164 #define CNST_SAMPLE_VAL(v) (((v) & EVENT_SAMPLE_MASK) << 16) 165 #define CNST_SAMPLE_MASK CNST_SAMPLE_VAL(EVENT_SAMPLE_MASK) 166 167 #define CNST_CACHE_GROUP_VAL(v) (((v) & 0xffull) << 55) 168 #define CNST_CACHE_GROUP_MASK CNST_CACHE_GROUP_VAL(0xff) 169 #define CNST_CACHE_PMC4_VAL (1ull << 54) 170 #define CNST_CACHE_PMC4_MASK CNST_CACHE_PMC4_VAL 171 172 #define CNST_L2L3_GROUP_VAL(v) (((v) & 0x1full) << 55) 173 #define CNST_L2L3_GROUP_MASK CNST_L2L3_GROUP_VAL(0x1f) 174 175 #define CNST_RADIX_SCOPE_GROUP_VAL(v) (((v) & 0x1ull) << 21) 176 #define CNST_RADIX_SCOPE_GROUP_MASK CNST_RADIX_SCOPE_GROUP_VAL(1) 177 178 /* 179 * For NC we are counting up to 4 events. This requires three bits, and we need 180 * the fifth event to overflow and set the 4th bit. To achieve that we bias the 181 * fields by 3 in test_adder. 182 */ 183 #define CNST_NC_SHIFT 12 184 #define CNST_NC_VAL (1 << CNST_NC_SHIFT) 185 #define CNST_NC_MASK (8 << CNST_NC_SHIFT) 186 #define ISA207_TEST_ADDER (3 << CNST_NC_SHIFT) 187 188 /* 189 * For the per-PMC fields we have two bits. The low bit is added, so if two 190 * events ask for the same PMC the sum will overflow, setting the high bit, 191 * indicating an error. So our mask sets the high bit. 192 */ 193 #define CNST_PMC_SHIFT(pmc) ((pmc - 1) * 2) 194 #define CNST_PMC_VAL(pmc) (1 << CNST_PMC_SHIFT(pmc)) 195 #define CNST_PMC_MASK(pmc) (2 << CNST_PMC_SHIFT(pmc)) 196 197 /* Our add_fields is defined as: */ 198 #define ISA207_ADD_FIELDS \ 199 CNST_PMC_VAL(1) | CNST_PMC_VAL(2) | CNST_PMC_VAL(3) | \ 200 CNST_PMC_VAL(4) | CNST_PMC_VAL(5) | CNST_PMC_VAL(6) | CNST_NC_VAL 201 202 /* Bits in MMCR1 for PowerISA v2.07 */ 203 #define MMCR1_UNIT_SHIFT(pmc) (60 - (4 * ((pmc) - 1))) 204 #define MMCR1_COMBINE_SHIFT(pmc) (35 - ((pmc) - 1)) 205 #define MMCR1_PMCSEL_SHIFT(pmc) (24 - (((pmc) - 1)) * 8) 206 #define MMCR1_FAB_SHIFT 36 207 #define MMCR1_DC_IC_QUAL_MASK 0x3 208 #define MMCR1_DC_IC_QUAL_SHIFT 46 209 210 /* MMCR1 Combine bits macro for power9 */ 211 #define p9_MMCR1_COMBINE_SHIFT(pmc) (38 - ((pmc - 1) * 2)) 212 213 /* Bits in MMCRA for PowerISA v2.07 */ 214 #define MMCRA_SAMP_MODE_SHIFT 1 215 #define MMCRA_SAMP_ELIG_SHIFT 4 216 #define MMCRA_THR_CTL_SHIFT 8 217 #define MMCRA_THR_SEL_SHIFT 16 218 #define MMCRA_THR_CMP_SHIFT 32 219 #define MMCRA_SDAR_MODE_SHIFT 42 220 #define MMCRA_SDAR_MODE_TLB (1ull << MMCRA_SDAR_MODE_SHIFT) 221 #define MMCRA_SDAR_MODE_NO_UPDATES ~(0x3ull << MMCRA_SDAR_MODE_SHIFT) 222 #define MMCRA_SDAR_MODE_DCACHE (2ull << MMCRA_SDAR_MODE_SHIFT) 223 #define MMCRA_IFM_SHIFT 30 224 #define MMCRA_THR_CTR_MANT_SHIFT 19 225 #define MMCRA_THR_CTR_MANT_MASK 0x7Ful 226 #define MMCRA_THR_CTR_MANT(v) (((v) >> MMCRA_THR_CTR_MANT_SHIFT) &\ 227 MMCRA_THR_CTR_MANT_MASK) 228 229 #define MMCRA_THR_CTR_EXP_SHIFT 27 230 #define MMCRA_THR_CTR_EXP_MASK 0x7ul 231 #define MMCRA_THR_CTR_EXP(v) (((v) >> MMCRA_THR_CTR_EXP_SHIFT) &\ 232 MMCRA_THR_CTR_EXP_MASK) 233 234 #define P10_MMCRA_THR_CTR_MANT_MASK 0xFFul 235 #define P10_MMCRA_THR_CTR_MANT(v) (((v) >> MMCRA_THR_CTR_MANT_SHIFT) &\ 236 P10_MMCRA_THR_CTR_MANT_MASK) 237 238 /* MMCRA Threshold Compare bit constant for power9 */ 239 #define p9_MMCRA_THR_CMP_SHIFT 45 240 241 /* Bits in MMCR2 for PowerISA v2.07 */ 242 #define MMCR2_FCS(pmc) (1ull << (63 - (((pmc) - 1) * 9))) 243 #define MMCR2_FCP(pmc) (1ull << (62 - (((pmc) - 1) * 9))) 244 #define MMCR2_FCH(pmc) (1ull << (57 - (((pmc) - 1) * 9))) 245 246 #define MAX_ALT 2 247 #define MAX_PMU_COUNTERS 6 248 249 /* Bits in MMCR3 for PowerISA v3.10 */ 250 #define MMCR3_SHIFT(pmc) (49 - (15 * ((pmc) - 1))) 251 252 #define ISA207_SIER_TYPE_SHIFT 15 253 #define ISA207_SIER_TYPE_MASK (0x7ull << ISA207_SIER_TYPE_SHIFT) 254 255 #define ISA207_SIER_LDST_SHIFT 1 256 #define ISA207_SIER_LDST_MASK (0x7ull << ISA207_SIER_LDST_SHIFT) 257 258 #define ISA207_SIER_DATA_SRC_SHIFT 53 259 #define ISA207_SIER_DATA_SRC_MASK (0x7ull << ISA207_SIER_DATA_SRC_SHIFT) 260 261 #define P(a, b) PERF_MEM_S(a, b) 262 #define PH(a, b) (P(LVL, HIT) | P(a, b)) 263 #define PM(a, b) (P(LVL, MISS) | P(a, b)) 264 265 int isa207_get_constraint(u64 event, unsigned long *maskp, unsigned long *valp); 266 int isa207_compute_mmcr(u64 event[], int n_ev, 267 unsigned int hwc[], struct mmcr_regs *mmcr, 268 struct perf_event *pevents[]); 269 void isa207_disable_pmc(unsigned int pmc, struct mmcr_regs *mmcr); 270 int isa207_get_alternatives(u64 event, u64 alt[], int size, unsigned int flags, 271 const unsigned int ev_alt[][MAX_ALT]); 272 void isa207_get_mem_data_src(union perf_mem_data_src *dsrc, u32 flags, 273 struct pt_regs *regs); 274 void isa207_get_mem_weight(u64 *weight); 275 276 #endif 277