2 * Copyright 2009 Paul Mackerras, IBM Corporation.
3 * Copyright 2013 Michael Ellerman, IBM Corporation.
4 * Copyright 2016 Madhavan Srinivasan, IBM Corporation.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or any later version.
12 #ifndef _LINUX_POWERPC_PERF_ISA207_COMMON_H_
13 #define _LINUX_POWERPC_PERF_ISA207_COMMON_H_
15 #include <linux/kernel.h>
16 #include <linux/perf_event.h>
17 #include <asm/firmware.h>
18 #include <asm/cputable.h>
21 * Raw event encoding for PowerISA v2.07:
23 * 60 56 52 48 44 40 36 32
24 * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - |
25 * | | [ ] [ thresh_cmp ] [ thresh_ctl ]
27 * | | *- IFM (Linux) thresh start/stop OR FAB match -*
31 * 28 24 20 16 12 8 4 0
32 * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - |
33 * [ ] [ sample ] [cache] [ pmc ] [unit ] c m [ pmcxsel ]
36 * | | *- L1/L2/L3 cache_sel |
38 * | *- sampling mode for marked events *- combine
42 * Below uses IBM bit numbering.
44 * MMCR1[x:y] = unit (PMCxUNIT)
45 * MMCR1[x] = combine (PMCxCOMB)
47 * if pmc == 3 and unit == 0 and pmcxsel[0:6] == 0b0101011
48 * # PM_MRK_FAB_RSP_MATCH
49 * MMCR1[20:27] = thresh_ctl (FAB_CRESP_MATCH / FAB_TYPE_MATCH)
50 * else if pmc == 4 and unit == 0xf and pmcxsel[0:6] == 0b0101001
51 * # PM_MRK_FAB_RSP_MATCH_CYC
52 * MMCR1[20:27] = thresh_ctl (FAB_CRESP_MATCH / FAB_TYPE_MATCH)
54 * MMCRA[48:55] = thresh_ctl (THRESH START/END)
57 * MMCRA[45:47] = thresh_sel
60 * MMCRA[22:24] = thresh_cmp[0:2]
61 * MMCRA[25:31] = thresh_cmp[3:9]
63 * if unit == 6 or unit == 7
64 * MMCRC[53:55] = cache_sel[1:3] (L2EVENT_SEL)
65 * else if unit == 8 or unit == 9:
66 * if cache_sel[0] == 0: # L3 bank
67 * MMCRC[47:49] = cache_sel[1:3] (L3EVENT_SEL0)
68 * else if cache_sel[0] == 1:
69 * MMCRC[50:51] = cache_sel[2:3] (L3EVENT_SEL1)
70 * else if cache_sel[1]: # L1 event
71 * MMCR1[16] = cache_sel[2]
72 * MMCR1[17] = cache_sel[3]
75 * MMCRA[63] = 1 (SAMPLE_ENABLE)
76 * MMCRA[57:59] = sample[0:2] (RAND_SAMP_ELIG)
77 * MMCRA[61:62] = sample[3:4] (RAND_SAMP_MODE)
84 #define EVENT_EBB_MASK 1ull
85 #define EVENT_EBB_SHIFT PERF_EVENT_CONFIG_EBB_SHIFT
86 #define EVENT_BHRB_MASK 1ull
87 #define EVENT_BHRB_SHIFT 62
88 #define EVENT_WANTS_BHRB (EVENT_BHRB_MASK << EVENT_BHRB_SHIFT)
89 #define EVENT_IFM_MASK 3ull
90 #define EVENT_IFM_SHIFT 60
91 #define EVENT_THR_CMP_SHIFT 40 /* Threshold CMP value */
92 #define EVENT_THR_CMP_MASK 0x3ff
93 #define EVENT_THR_CTL_SHIFT 32 /* Threshold control value (start/stop) */
94 #define EVENT_THR_CTL_MASK 0xffull
95 #define EVENT_THR_SEL_SHIFT 29 /* Threshold select value */
96 #define EVENT_THR_SEL_MASK 0x7
97 #define EVENT_THRESH_SHIFT 29 /* All threshold bits */
98 #define EVENT_THRESH_MASK 0x1fffffull
99 #define EVENT_SAMPLE_SHIFT 24 /* Sampling mode & eligibility */
100 #define EVENT_SAMPLE_MASK 0x1f
101 #define EVENT_CACHE_SEL_SHIFT 20 /* L2/L3 cache select */
102 #define EVENT_CACHE_SEL_MASK 0xf
103 #define EVENT_IS_L1 (4 << EVENT_CACHE_SEL_SHIFT)
104 #define EVENT_PMC_SHIFT 16 /* PMC number (1-based) */
105 #define EVENT_PMC_MASK 0xf
106 #define EVENT_UNIT_SHIFT 12 /* Unit */
107 #define EVENT_UNIT_MASK 0xf
108 #define EVENT_COMBINE_SHIFT 11 /* Combine bit */
109 #define EVENT_COMBINE_MASK 0x1
110 #define EVENT_COMBINE(v) (((v) >> EVENT_COMBINE_SHIFT) & EVENT_COMBINE_MASK)
111 #define EVENT_MARKED_SHIFT 8 /* Marked bit */
112 #define EVENT_MARKED_MASK 0x1
113 #define EVENT_IS_MARKED (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT)
114 #define EVENT_PSEL_MASK 0xff /* PMCxSEL value */
116 /* Bits defined by Linux */
117 #define EVENT_LINUX_MASK \
118 ((EVENT_EBB_MASK << EVENT_EBB_SHIFT) | \
119 (EVENT_BHRB_MASK << EVENT_BHRB_SHIFT) | \
120 (EVENT_IFM_MASK << EVENT_IFM_SHIFT))
122 #define EVENT_VALID_MASK \
123 ((EVENT_THRESH_MASK << EVENT_THRESH_SHIFT) | \
124 (EVENT_SAMPLE_MASK << EVENT_SAMPLE_SHIFT) | \
125 (EVENT_CACHE_SEL_MASK << EVENT_CACHE_SEL_SHIFT) | \
126 (EVENT_PMC_MASK << EVENT_PMC_SHIFT) | \
127 (EVENT_UNIT_MASK << EVENT_UNIT_SHIFT) | \
128 (EVENT_COMBINE_MASK << EVENT_COMBINE_SHIFT) | \
129 (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) | \
134 (PERF_SAMPLE_BRANCH_USER |\
135 PERF_SAMPLE_BRANCH_KERNEL |\
136 PERF_SAMPLE_BRANCH_HV)
138 /* Contants to support power9 raw encoding format */
139 #define p9_EVENT_COMBINE_SHIFT 10 /* Combine bit */
140 #define p9_EVENT_COMBINE_MASK 0x3ull
141 #define p9_EVENT_COMBINE(v) (((v) >> p9_EVENT_COMBINE_SHIFT) & p9_EVENT_COMBINE_MASK)
142 #define p9_SDAR_MODE_SHIFT 50
143 #define p9_SDAR_MODE_MASK 0x3ull
144 #define p9_SDAR_MODE(v) (((v) >> p9_SDAR_MODE_SHIFT) & p9_SDAR_MODE_MASK)
146 #define p9_EVENT_VALID_MASK \
147 ((p9_SDAR_MODE_MASK << p9_SDAR_MODE_SHIFT | \
148 (EVENT_THRESH_MASK << EVENT_THRESH_SHIFT) | \
149 (EVENT_SAMPLE_MASK << EVENT_SAMPLE_SHIFT) | \
150 (EVENT_CACHE_SEL_MASK << EVENT_CACHE_SEL_SHIFT) | \
151 (EVENT_PMC_MASK << EVENT_PMC_SHIFT) | \
152 (EVENT_UNIT_MASK << EVENT_UNIT_SHIFT) | \
153 (p9_EVENT_COMBINE_MASK << p9_EVENT_COMBINE_SHIFT) | \
154 (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) | \
159 * Layout of constraint bits:
161 * 60 56 52 48 44 40 36 32
162 * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - |
163 * [ fab_match ] [ thresh_cmp ] [ thresh_ctl ] [ ]
167 * 28 24 20 16 12 8 4 0
168 * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - |
169 * [ ] | [ ] [ sample ] [ ] [6] [5] [4] [3] [2] [1]
171 * BHRB IFM -* | | | Count of events for each PMC.
172 * EBB -* | | p1, p2, p3, p4, p5, p6.
173 * L1 I/D qualifier -* |
174 * nc - number of counters -*
176 * The PMC fields P1..P6, and NC, are adder fields. As we accumulate constraints
177 * we want the low bit of each field to be added to any existing value.
179 * Everything else is a value field.
182 #define CNST_FAB_MATCH_VAL(v) (((v) & EVENT_THR_CTL_MASK) << 56)
183 #define CNST_FAB_MATCH_MASK CNST_FAB_MATCH_VAL(EVENT_THR_CTL_MASK)
185 /* We just throw all the threshold bits into the constraint */
186 #define CNST_THRESH_VAL(v) (((v) & EVENT_THRESH_MASK) << 32)
187 #define CNST_THRESH_MASK CNST_THRESH_VAL(EVENT_THRESH_MASK)
189 #define CNST_EBB_VAL(v) (((v) & EVENT_EBB_MASK) << 24)
190 #define CNST_EBB_MASK CNST_EBB_VAL(EVENT_EBB_MASK)
192 #define CNST_IFM_VAL(v) (((v) & EVENT_IFM_MASK) << 25)
193 #define CNST_IFM_MASK CNST_IFM_VAL(EVENT_IFM_MASK)
195 #define CNST_L1_QUAL_VAL(v) (((v) & 3) << 22)
196 #define CNST_L1_QUAL_MASK CNST_L1_QUAL_VAL(3)
198 #define CNST_SAMPLE_VAL(v) (((v) & EVENT_SAMPLE_MASK) << 16)
199 #define CNST_SAMPLE_MASK CNST_SAMPLE_VAL(EVENT_SAMPLE_MASK)
202 * For NC we are counting up to 4 events. This requires three bits, and we need
203 * the fifth event to overflow and set the 4th bit. To achieve that we bias the
204 * fields by 3 in test_adder.
206 #define CNST_NC_SHIFT 12
207 #define CNST_NC_VAL (1 << CNST_NC_SHIFT)
208 #define CNST_NC_MASK (8 << CNST_NC_SHIFT)
209 #define ISA207_TEST_ADDER (3 << CNST_NC_SHIFT)
212 * For the per-PMC fields we have two bits. The low bit is added, so if two
213 * events ask for the same PMC the sum will overflow, setting the high bit,
214 * indicating an error. So our mask sets the high bit.
216 #define CNST_PMC_SHIFT(pmc) ((pmc - 1) * 2)
217 #define CNST_PMC_VAL(pmc) (1 << CNST_PMC_SHIFT(pmc))
218 #define CNST_PMC_MASK(pmc) (2 << CNST_PMC_SHIFT(pmc))
220 /* Our add_fields is defined as: */
221 #define ISA207_ADD_FIELDS \
222 CNST_PMC_VAL(1) | CNST_PMC_VAL(2) | CNST_PMC_VAL(3) | \
223 CNST_PMC_VAL(4) | CNST_PMC_VAL(5) | CNST_PMC_VAL(6) | CNST_NC_VAL
226 * Lets restrict use of PMC5 for instruction counting.
228 #define P9_DD1_TEST_ADDER (ISA207_TEST_ADDER | CNST_PMC_VAL(5))
230 /* Bits in MMCR1 for PowerISA v2.07 */
231 #define MMCR1_UNIT_SHIFT(pmc) (60 - (4 * ((pmc) - 1)))
232 #define MMCR1_COMBINE_SHIFT(pmc) (35 - ((pmc) - 1))
233 #define MMCR1_PMCSEL_SHIFT(pmc) (24 - (((pmc) - 1)) * 8)
234 #define MMCR1_FAB_SHIFT 36
235 #define MMCR1_DC_IC_QUAL_MASK 0x3
236 #define MMCR1_DC_IC_QUAL_SHIFT 46
238 /* MMCR1 Combine bits macro for power9 */
239 #define p9_MMCR1_COMBINE_SHIFT(pmc) (38 - ((pmc - 1) * 2))
241 /* Bits in MMCRA for PowerISA v2.07 */
242 #define MMCRA_SAMP_MODE_SHIFT 1
243 #define MMCRA_SAMP_ELIG_SHIFT 4
244 #define MMCRA_THR_CTL_SHIFT 8
245 #define MMCRA_THR_SEL_SHIFT 16
246 #define MMCRA_THR_CMP_SHIFT 32
247 #define MMCRA_SDAR_MODE_SHIFT 42
248 #define MMCRA_SDAR_MODE_TLB (1ull << MMCRA_SDAR_MODE_SHIFT)
249 #define MMCRA_SDAR_MODE_NO_UPDATES ~(0x3ull << MMCRA_SDAR_MODE_SHIFT)
250 #define MMCRA_SDAR_MODE_DCACHE (2ull << MMCRA_SDAR_MODE_SHIFT)
251 #define MMCRA_IFM_SHIFT 30
252 #define MMCRA_THR_CTR_MANT_SHIFT 19
253 #define MMCRA_THR_CTR_MANT_MASK 0x7Ful
254 #define MMCRA_THR_CTR_MANT(v) (((v) >> MMCRA_THR_CTR_MANT_SHIFT) &\
255 MMCRA_THR_CTR_MANT_MASK)
257 #define MMCRA_THR_CTR_EXP_SHIFT 27
258 #define MMCRA_THR_CTR_EXP_MASK 0x7ul
259 #define MMCRA_THR_CTR_EXP(v) (((v) >> MMCRA_THR_CTR_EXP_SHIFT) &\
260 MMCRA_THR_CTR_EXP_MASK)
262 /* MMCR1 Threshold Compare bit constant for power9 */
263 #define p9_MMCRA_THR_CMP_SHIFT 45
265 /* Bits in MMCR2 for PowerISA v2.07 */
266 #define MMCR2_FCS(pmc) (1ull << (63 - (((pmc) - 1) * 9)))
267 #define MMCR2_FCP(pmc) (1ull << (62 - (((pmc) - 1) * 9)))
268 #define MMCR2_FCH(pmc) (1ull << (57 - (((pmc) - 1) * 9)))
271 #define MAX_PMU_COUNTERS 6
273 #define ISA207_SIER_TYPE_SHIFT 15
274 #define ISA207_SIER_TYPE_MASK (0x7ull << ISA207_SIER_TYPE_SHIFT)
276 #define ISA207_SIER_LDST_SHIFT 1
277 #define ISA207_SIER_LDST_MASK (0x7ull << ISA207_SIER_LDST_SHIFT)
279 #define ISA207_SIER_DATA_SRC_SHIFT 53
280 #define ISA207_SIER_DATA_SRC_MASK (0x7ull << ISA207_SIER_DATA_SRC_SHIFT)
282 #define P(a, b) PERF_MEM_S(a, b)
283 #define PH(a, b) (P(LVL, HIT) | P(a, b))
284 #define PM(a, b) (P(LVL, MISS) | P(a, b))
286 int isa207_get_constraint(u64 event, unsigned long *maskp, unsigned long *valp);
287 int isa207_compute_mmcr(u64 event[], int n_ev,
288 unsigned int hwc[], unsigned long mmcr[],
289 struct perf_event *pevents[]);
290 void isa207_disable_pmc(unsigned int pmc, unsigned long mmcr[]);
291 int isa207_get_alternatives(u64 event, u64 alt[], int size, unsigned int flags,
292 const unsigned int ev_alt[][MAX_ALT]);
293 void isa207_get_mem_data_src(union perf_mem_data_src *dsrc, u32 flags,
294 struct pt_regs *regs);
295 void isa207_get_mem_weight(u64 *weight);