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Commit | Line | Data |
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03089688 WD |
1 | /* |
2 | * PMU support | |
3 | * | |
4 | * Copyright (C) 2012 ARM Limited | |
5 | * Author: Will Deacon <will.deacon@arm.com> | |
6 | * | |
7 | * This code is based heavily on the ARMv7 perf event code. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
20 | */ | |
03089688 | 21 | |
03089688 | 22 | #include <asm/irq_regs.h> |
b8cfadfc | 23 | #include <asm/perf_event.h> |
bf2d4782 | 24 | #include <asm/sysreg.h> |
d98ecdac | 25 | #include <asm/virt.h> |
03089688 | 26 | |
dbee3a74 | 27 | #include <linux/acpi.h> |
6475b2d8 MR |
28 | #include <linux/of.h> |
29 | #include <linux/perf/arm_pmu.h> | |
30 | #include <linux/platform_device.h> | |
03089688 WD |
31 | |
32 | /* | |
33 | * ARMv8 PMUv3 Performance Events handling code. | |
b112c84a | 34 | * Common event types (some are defined in asm/perf_event.h). |
03089688 | 35 | */ |
03089688 | 36 | |
90381cba | 37 | /* At least one of the following is required. */ |
03598fdb AK |
38 | #define ARMV8_PMUV3_PERFCTR_INST_RETIRED 0x08 |
39 | #define ARMV8_PMUV3_PERFCTR_INST_SPEC 0x1B | |
03089688 | 40 | |
90381cba | 41 | /* Common architectural events. */ |
03598fdb AK |
42 | #define ARMV8_PMUV3_PERFCTR_LD_RETIRED 0x06 |
43 | #define ARMV8_PMUV3_PERFCTR_ST_RETIRED 0x07 | |
90381cba | 44 | #define ARMV8_PMUV3_PERFCTR_EXC_TAKEN 0x09 |
03598fdb AK |
45 | #define ARMV8_PMUV3_PERFCTR_EXC_RETURN 0x0A |
46 | #define ARMV8_PMUV3_PERFCTR_CID_WRITE_RETIRED 0x0B | |
47 | #define ARMV8_PMUV3_PERFCTR_PC_WRITE_RETIRED 0x0C | |
48 | #define ARMV8_PMUV3_PERFCTR_BR_IMMED_RETIRED 0x0D | |
49 | #define ARMV8_PMUV3_PERFCTR_BR_RETURN_RETIRED 0x0E | |
50 | #define ARMV8_PMUV3_PERFCTR_UNALIGNED_LDST_RETIRED 0x0F | |
51 | #define ARMV8_PMUV3_PERFCTR_TTBR_WRITE_RETIRED 0x1C | |
9e9caa6a DR |
52 | #define ARMV8_PMUV3_PERFCTR_CHAIN 0x1E |
53 | #define ARMV8_PMUV3_PERFCTR_BR_RETIRED 0x21 | |
90381cba DR |
54 | |
55 | /* Common microarchitectural events. */ | |
03598fdb AK |
56 | #define ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL 0x01 |
57 | #define ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL 0x02 | |
58 | #define ARMV8_PMUV3_PERFCTR_L1D_TLB_REFILL 0x05 | |
90381cba | 59 | #define ARMV8_PMUV3_PERFCTR_MEM_ACCESS 0x13 |
03598fdb AK |
60 | #define ARMV8_PMUV3_PERFCTR_L1I_CACHE 0x14 |
61 | #define ARMV8_PMUV3_PERFCTR_L1D_CACHE_WB 0x15 | |
62 | #define ARMV8_PMUV3_PERFCTR_L2D_CACHE 0x16 | |
63 | #define ARMV8_PMUV3_PERFCTR_L2D_CACHE_REFILL 0x17 | |
64 | #define ARMV8_PMUV3_PERFCTR_L2D_CACHE_WB 0x18 | |
90381cba | 65 | #define ARMV8_PMUV3_PERFCTR_BUS_ACCESS 0x19 |
03598fdb | 66 | #define ARMV8_PMUV3_PERFCTR_MEMORY_ERROR 0x1A |
90381cba | 67 | #define ARMV8_PMUV3_PERFCTR_BUS_CYCLES 0x1D |
9e9caa6a DR |
68 | #define ARMV8_PMUV3_PERFCTR_L1D_CACHE_ALLOCATE 0x1F |
69 | #define ARMV8_PMUV3_PERFCTR_L2D_CACHE_ALLOCATE 0x20 | |
70 | #define ARMV8_PMUV3_PERFCTR_BR_MIS_PRED_RETIRED 0x22 | |
71 | #define ARMV8_PMUV3_PERFCTR_STALL_FRONTEND 0x23 | |
72 | #define ARMV8_PMUV3_PERFCTR_STALL_BACKEND 0x24 | |
73 | #define ARMV8_PMUV3_PERFCTR_L1D_TLB 0x25 | |
74 | #define ARMV8_PMUV3_PERFCTR_L1I_TLB 0x26 | |
75 | #define ARMV8_PMUV3_PERFCTR_L2I_CACHE 0x27 | |
76 | #define ARMV8_PMUV3_PERFCTR_L2I_CACHE_REFILL 0x28 | |
77 | #define ARMV8_PMUV3_PERFCTR_L3D_CACHE_ALLOCATE 0x29 | |
78 | #define ARMV8_PMUV3_PERFCTR_L3D_CACHE_REFILL 0x2A | |
79 | #define ARMV8_PMUV3_PERFCTR_L3D_CACHE 0x2B | |
80 | #define ARMV8_PMUV3_PERFCTR_L3D_CACHE_WB 0x2C | |
81 | #define ARMV8_PMUV3_PERFCTR_L2D_TLB_REFILL 0x2D | |
03598fdb | 82 | #define ARMV8_PMUV3_PERFCTR_L2I_TLB_REFILL 0x2E |
9e9caa6a | 83 | #define ARMV8_PMUV3_PERFCTR_L2D_TLB 0x2F |
03598fdb AK |
84 | #define ARMV8_PMUV3_PERFCTR_L2I_TLB 0x30 |
85 | ||
86 | /* ARMv8 recommended implementation defined event types */ | |
87 | #define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD 0x40 | |
88 | #define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR 0x41 | |
89 | #define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_RD 0x42 | |
90 | #define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_WR 0x43 | |
0893f745 AK |
91 | #define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_INNER 0x44 |
92 | #define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_OUTER 0x45 | |
93 | #define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WB_VICTIM 0x46 | |
94 | #define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WB_CLEAN 0x47 | |
95 | #define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_INVAL 0x48 | |
96 | ||
03598fdb AK |
97 | #define ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD 0x4C |
98 | #define ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR 0x4D | |
99 | #define ARMV8_IMPDEF_PERFCTR_L1D_TLB_RD 0x4E | |
100 | #define ARMV8_IMPDEF_PERFCTR_L1D_TLB_WR 0x4F | |
0893f745 AK |
101 | #define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_RD 0x50 |
102 | #define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_WR 0x51 | |
103 | #define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_REFILL_RD 0x52 | |
104 | #define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_REFILL_WR 0x53 | |
105 | ||
106 | #define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_WB_VICTIM 0x56 | |
107 | #define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_WB_CLEAN 0x57 | |
108 | #define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_INVAL 0x58 | |
109 | ||
110 | #define ARMV8_IMPDEF_PERFCTR_L2D_TLB_REFILL_RD 0x5C | |
111 | #define ARMV8_IMPDEF_PERFCTR_L2D_TLB_REFILL_WR 0x5D | |
112 | #define ARMV8_IMPDEF_PERFCTR_L2D_TLB_RD 0x5E | |
113 | #define ARMV8_IMPDEF_PERFCTR_L2D_TLB_WR 0x5F | |
114 | ||
115 | #define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD 0x60 | |
116 | #define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR 0x61 | |
117 | #define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_SHARED 0x62 | |
118 | #define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_NOT_SHARED 0x63 | |
119 | #define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_NORMAL 0x64 | |
120 | #define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_PERIPH 0x65 | |
121 | ||
122 | #define ARMV8_IMPDEF_PERFCTR_MEM_ACCESS_RD 0x66 | |
123 | #define ARMV8_IMPDEF_PERFCTR_MEM_ACCESS_WR 0x67 | |
124 | #define ARMV8_IMPDEF_PERFCTR_UNALIGNED_LD_SPEC 0x68 | |
125 | #define ARMV8_IMPDEF_PERFCTR_UNALIGNED_ST_SPEC 0x69 | |
126 | #define ARMV8_IMPDEF_PERFCTR_UNALIGNED_LDST_SPEC 0x6A | |
127 | ||
128 | #define ARMV8_IMPDEF_PERFCTR_LDREX_SPEC 0x6C | |
129 | #define ARMV8_IMPDEF_PERFCTR_STREX_PASS_SPEC 0x6D | |
130 | #define ARMV8_IMPDEF_PERFCTR_STREX_FAIL_SPEC 0x6E | |
131 | #define ARMV8_IMPDEF_PERFCTR_STREX_SPEC 0x6F | |
132 | #define ARMV8_IMPDEF_PERFCTR_LD_SPEC 0x70 | |
133 | #define ARMV8_IMPDEF_PERFCTR_ST_SPEC 0x71 | |
134 | #define ARMV8_IMPDEF_PERFCTR_LDST_SPEC 0x72 | |
135 | #define ARMV8_IMPDEF_PERFCTR_DP_SPEC 0x73 | |
136 | #define ARMV8_IMPDEF_PERFCTR_ASE_SPEC 0x74 | |
137 | #define ARMV8_IMPDEF_PERFCTR_VFP_SPEC 0x75 | |
138 | #define ARMV8_IMPDEF_PERFCTR_PC_WRITE_SPEC 0x76 | |
139 | #define ARMV8_IMPDEF_PERFCTR_CRYPTO_SPEC 0x77 | |
140 | #define ARMV8_IMPDEF_PERFCTR_BR_IMMED_SPEC 0x78 | |
141 | #define ARMV8_IMPDEF_PERFCTR_BR_RETURN_SPEC 0x79 | |
142 | #define ARMV8_IMPDEF_PERFCTR_BR_INDIRECT_SPEC 0x7A | |
143 | ||
144 | #define ARMV8_IMPDEF_PERFCTR_ISB_SPEC 0x7C | |
145 | #define ARMV8_IMPDEF_PERFCTR_DSB_SPEC 0x7D | |
146 | #define ARMV8_IMPDEF_PERFCTR_DMB_SPEC 0x7E | |
147 | ||
148 | #define ARMV8_IMPDEF_PERFCTR_EXC_UNDEF 0x81 | |
149 | #define ARMV8_IMPDEF_PERFCTR_EXC_SVC 0x82 | |
150 | #define ARMV8_IMPDEF_PERFCTR_EXC_PABORT 0x83 | |
151 | #define ARMV8_IMPDEF_PERFCTR_EXC_DABORT 0x84 | |
152 | ||
153 | #define ARMV8_IMPDEF_PERFCTR_EXC_IRQ 0x86 | |
154 | #define ARMV8_IMPDEF_PERFCTR_EXC_FIQ 0x87 | |
155 | #define ARMV8_IMPDEF_PERFCTR_EXC_SMC 0x88 | |
156 | ||
157 | #define ARMV8_IMPDEF_PERFCTR_EXC_HVC 0x8A | |
158 | #define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_PABORT 0x8B | |
159 | #define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_DABORT 0x8C | |
160 | #define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_OTHER 0x8D | |
161 | #define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_IRQ 0x8E | |
162 | #define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_FIQ 0x8F | |
163 | #define ARMV8_IMPDEF_PERFCTR_RC_LD_SPEC 0x90 | |
164 | #define ARMV8_IMPDEF_PERFCTR_RC_ST_SPEC 0x91 | |
165 | ||
166 | #define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_RD 0xA0 | |
167 | #define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_WR 0xA1 | |
168 | #define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_REFILL_RD 0xA2 | |
169 | #define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_REFILL_WR 0xA3 | |
170 | ||
171 | #define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_WB_VICTIM 0xA6 | |
172 | #define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_WB_CLEAN 0xA7 | |
173 | #define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_INVAL 0xA8 | |
5f140cce | 174 | |
ac82d127 | 175 | /* ARMv8 Cortex-A53 specific event types. */ |
03598fdb | 176 | #define ARMV8_A53_PERFCTR_PREF_LINEFILL 0xC2 |
ac82d127 | 177 | |
d0aa2bff | 178 | /* ARMv8 Cavium ThunderX specific event types. */ |
03598fdb AK |
179 | #define ARMV8_THUNDER_PERFCTR_L1D_CACHE_MISS_ST 0xE9 |
180 | #define ARMV8_THUNDER_PERFCTR_L1D_CACHE_PREF_ACCESS 0xEA | |
181 | #define ARMV8_THUNDER_PERFCTR_L1D_CACHE_PREF_MISS 0xEB | |
182 | #define ARMV8_THUNDER_PERFCTR_L1I_CACHE_PREF_ACCESS 0xEC | |
183 | #define ARMV8_THUNDER_PERFCTR_L1I_CACHE_PREF_MISS 0xED | |
62a4dda9 | 184 | |
03089688 | 185 | /* PMUv3 HW events mapping. */ |
236b9b91 JL |
186 | |
187 | /* | |
188 | * ARMv8 Architectural defined events, not all of these may | |
189 | * be supported on any given implementation. Undefined events will | |
190 | * be disabled at run-time. | |
191 | */ | |
03089688 | 192 | static const unsigned armv8_pmuv3_perf_map[PERF_COUNT_HW_MAX] = { |
ae2fb7ec | 193 | PERF_MAP_ALL_UNSUPPORTED, |
03598fdb AK |
194 | [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CPU_CYCLES, |
195 | [PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INST_RETIRED, | |
196 | [PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE, | |
197 | [PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL, | |
236b9b91 | 198 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_PC_WRITE_RETIRED, |
03598fdb | 199 | [PERF_COUNT_HW_BRANCH_MISSES] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, |
236b9b91 JL |
200 | [PERF_COUNT_HW_BUS_CYCLES] = ARMV8_PMUV3_PERFCTR_BUS_CYCLES, |
201 | [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = ARMV8_PMUV3_PERFCTR_STALL_FRONTEND, | |
202 | [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = ARMV8_PMUV3_PERFCTR_STALL_BACKEND, | |
03089688 WD |
203 | }; |
204 | ||
ac82d127 MR |
205 | /* ARM Cortex-A53 HW events mapping. */ |
206 | static const unsigned armv8_a53_perf_map[PERF_COUNT_HW_MAX] = { | |
207 | PERF_MAP_ALL_UNSUPPORTED, | |
03598fdb AK |
208 | [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CPU_CYCLES, |
209 | [PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INST_RETIRED, | |
210 | [PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE, | |
211 | [PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL, | |
212 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_PC_WRITE_RETIRED, | |
213 | [PERF_COUNT_HW_BRANCH_MISSES] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
ac82d127 MR |
214 | [PERF_COUNT_HW_BUS_CYCLES] = ARMV8_PMUV3_PERFCTR_BUS_CYCLES, |
215 | }; | |
216 | ||
5d7ee877 | 217 | /* ARM Cortex-A57 and Cortex-A72 events mapping. */ |
62a4dda9 MR |
218 | static const unsigned armv8_a57_perf_map[PERF_COUNT_HW_MAX] = { |
219 | PERF_MAP_ALL_UNSUPPORTED, | |
03598fdb AK |
220 | [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CPU_CYCLES, |
221 | [PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INST_RETIRED, | |
222 | [PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE, | |
223 | [PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL, | |
224 | [PERF_COUNT_HW_BRANCH_MISSES] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
62a4dda9 MR |
225 | [PERF_COUNT_HW_BUS_CYCLES] = ARMV8_PMUV3_PERFCTR_BUS_CYCLES, |
226 | }; | |
227 | ||
d0aa2bff JG |
228 | static const unsigned armv8_thunder_perf_map[PERF_COUNT_HW_MAX] = { |
229 | PERF_MAP_ALL_UNSUPPORTED, | |
03598fdb AK |
230 | [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CPU_CYCLES, |
231 | [PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INST_RETIRED, | |
232 | [PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE, | |
233 | [PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL, | |
234 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_PC_WRITE_RETIRED, | |
235 | [PERF_COUNT_HW_BRANCH_MISSES] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
d0aa2bff JG |
236 | [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = ARMV8_PMUV3_PERFCTR_STALL_FRONTEND, |
237 | [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = ARMV8_PMUV3_PERFCTR_STALL_BACKEND, | |
238 | }; | |
239 | ||
201a72b2 AK |
240 | /* Broadcom Vulcan events mapping */ |
241 | static const unsigned armv8_vulcan_perf_map[PERF_COUNT_HW_MAX] = { | |
242 | PERF_MAP_ALL_UNSUPPORTED, | |
243 | [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CPU_CYCLES, | |
244 | [PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INST_RETIRED, | |
245 | [PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE, | |
246 | [PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL, | |
247 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_BR_RETIRED, | |
248 | [PERF_COUNT_HW_BRANCH_MISSES] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
249 | [PERF_COUNT_HW_BUS_CYCLES] = ARMV8_PMUV3_PERFCTR_BUS_CYCLES, | |
250 | [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = ARMV8_PMUV3_PERFCTR_STALL_FRONTEND, | |
251 | [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = ARMV8_PMUV3_PERFCTR_STALL_BACKEND, | |
252 | }; | |
253 | ||
03089688 WD |
254 | static const unsigned armv8_pmuv3_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] |
255 | [PERF_COUNT_HW_CACHE_OP_MAX] | |
256 | [PERF_COUNT_HW_CACHE_RESULT_MAX] = { | |
ae2fb7ec MR |
257 | PERF_CACHE_MAP_ALL_UNSUPPORTED, |
258 | ||
03598fdb AK |
259 | [C(L1D)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1D_CACHE, |
260 | [C(L1D)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL, | |
261 | [C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1D_CACHE, | |
262 | [C(L1D)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL, | |
ae2fb7ec | 263 | |
236b9b91 JL |
264 | [C(L1I)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE, |
265 | [C(L1I)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL, | |
266 | ||
267 | [C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1D_TLB_REFILL, | |
268 | [C(DTLB)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1D_TLB, | |
269 | ||
270 | [C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL, | |
271 | [C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1I_TLB, | |
272 | ||
03598fdb AK |
273 | [C(BPU)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED, |
274 | [C(BPU)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
275 | [C(BPU)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED, | |
276 | [C(BPU)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
03089688 WD |
277 | }; |
278 | ||
ac82d127 MR |
279 | static const unsigned armv8_a53_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] |
280 | [PERF_COUNT_HW_CACHE_OP_MAX] | |
281 | [PERF_COUNT_HW_CACHE_RESULT_MAX] = { | |
282 | PERF_CACHE_MAP_ALL_UNSUPPORTED, | |
283 | ||
03598fdb AK |
284 | [C(L1D)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1D_CACHE, |
285 | [C(L1D)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL, | |
286 | [C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1D_CACHE, | |
287 | [C(L1D)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL, | |
288 | [C(L1D)][C(OP_PREFETCH)][C(RESULT_MISS)] = ARMV8_A53_PERFCTR_PREF_LINEFILL, | |
ac82d127 | 289 | |
03598fdb AK |
290 | [C(L1I)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE, |
291 | [C(L1I)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL, | |
ac82d127 | 292 | |
f5337346 FF |
293 | [C(LL)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L2D_CACHE, |
294 | [C(LL)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L2D_CACHE_REFILL, | |
295 | [C(LL)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L2D_CACHE, | |
296 | [C(LL)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L2D_CACHE_REFILL, | |
297 | ||
298 | [C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1D_TLB_REFILL, | |
03598fdb | 299 | [C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL, |
ac82d127 | 300 | |
03598fdb AK |
301 | [C(BPU)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED, |
302 | [C(BPU)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
303 | [C(BPU)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED, | |
304 | [C(BPU)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
ac82d127 MR |
305 | }; |
306 | ||
62a4dda9 MR |
307 | static const unsigned armv8_a57_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] |
308 | [PERF_COUNT_HW_CACHE_OP_MAX] | |
309 | [PERF_COUNT_HW_CACHE_RESULT_MAX] = { | |
310 | PERF_CACHE_MAP_ALL_UNSUPPORTED, | |
311 | ||
03598fdb AK |
312 | [C(L1D)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD, |
313 | [C(L1D)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_RD, | |
314 | [C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR, | |
315 | [C(L1D)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_WR, | |
62a4dda9 | 316 | |
03598fdb AK |
317 | [C(L1I)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE, |
318 | [C(L1I)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL, | |
62a4dda9 | 319 | |
03598fdb AK |
320 | [C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD, |
321 | [C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR, | |
62a4dda9 | 322 | |
03598fdb | 323 | [C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL, |
62a4dda9 | 324 | |
03598fdb AK |
325 | [C(BPU)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED, |
326 | [C(BPU)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
327 | [C(BPU)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED, | |
328 | [C(BPU)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
62a4dda9 MR |
329 | }; |
330 | ||
d0aa2bff JG |
331 | static const unsigned armv8_thunder_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] |
332 | [PERF_COUNT_HW_CACHE_OP_MAX] | |
333 | [PERF_COUNT_HW_CACHE_RESULT_MAX] = { | |
334 | PERF_CACHE_MAP_ALL_UNSUPPORTED, | |
335 | ||
03598fdb AK |
336 | [C(L1D)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD, |
337 | [C(L1D)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_RD, | |
338 | [C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR, | |
339 | [C(L1D)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_THUNDER_PERFCTR_L1D_CACHE_MISS_ST, | |
340 | [C(L1D)][C(OP_PREFETCH)][C(RESULT_ACCESS)] = ARMV8_THUNDER_PERFCTR_L1D_CACHE_PREF_ACCESS, | |
341 | [C(L1D)][C(OP_PREFETCH)][C(RESULT_MISS)] = ARMV8_THUNDER_PERFCTR_L1D_CACHE_PREF_MISS, | |
342 | ||
343 | [C(L1I)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE, | |
344 | [C(L1I)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL, | |
345 | [C(L1I)][C(OP_PREFETCH)][C(RESULT_ACCESS)] = ARMV8_THUNDER_PERFCTR_L1I_CACHE_PREF_ACCESS, | |
346 | [C(L1I)][C(OP_PREFETCH)][C(RESULT_MISS)] = ARMV8_THUNDER_PERFCTR_L1I_CACHE_PREF_MISS, | |
347 | ||
348 | [C(DTLB)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_RD, | |
349 | [C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD, | |
350 | [C(DTLB)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_WR, | |
351 | [C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR, | |
352 | ||
353 | [C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL, | |
354 | ||
355 | [C(BPU)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED, | |
356 | [C(BPU)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
357 | [C(BPU)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED, | |
358 | [C(BPU)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
62a4dda9 MR |
359 | }; |
360 | ||
201a72b2 AK |
361 | static const unsigned armv8_vulcan_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] |
362 | [PERF_COUNT_HW_CACHE_OP_MAX] | |
363 | [PERF_COUNT_HW_CACHE_RESULT_MAX] = { | |
364 | PERF_CACHE_MAP_ALL_UNSUPPORTED, | |
365 | ||
366 | [C(L1D)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD, | |
367 | [C(L1D)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_RD, | |
368 | [C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR, | |
369 | [C(L1D)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_WR, | |
370 | ||
371 | [C(L1I)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE, | |
372 | [C(L1I)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL, | |
373 | ||
374 | [C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL, | |
375 | [C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1I_TLB, | |
376 | ||
377 | [C(DTLB)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_RD, | |
378 | [C(DTLB)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_WR, | |
379 | [C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD, | |
380 | [C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR, | |
381 | ||
382 | [C(BPU)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED, | |
383 | [C(BPU)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
384 | [C(BPU)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_BR_PRED, | |
385 | [C(BPU)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_BR_MIS_PRED, | |
386 | ||
387 | [C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD, | |
388 | [C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR, | |
389 | }; | |
4b1a9e69 AK |
390 | |
391 | static ssize_t | |
392 | armv8pmu_events_sysfs_show(struct device *dev, | |
393 | struct device_attribute *attr, char *page) | |
394 | { | |
395 | struct perf_pmu_events_attr *pmu_attr; | |
396 | ||
397 | pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr); | |
398 | ||
399 | return sprintf(page, "event=0x%03llx\n", pmu_attr->id); | |
400 | } | |
401 | ||
9e9caa6a DR |
402 | #define ARMV8_EVENT_ATTR_RESOLVE(m) #m |
403 | #define ARMV8_EVENT_ATTR(name, config) \ | |
4b1a9e69 AK |
404 | PMU_EVENT_ATTR(name, armv8_event_attr_##name, \ |
405 | config, armv8pmu_events_sysfs_show) | |
9e9caa6a | 406 | |
03598fdb AK |
407 | ARMV8_EVENT_ATTR(sw_incr, ARMV8_PMUV3_PERFCTR_SW_INCR); |
408 | ARMV8_EVENT_ATTR(l1i_cache_refill, ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL); | |
409 | ARMV8_EVENT_ATTR(l1i_tlb_refill, ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL); | |
410 | ARMV8_EVENT_ATTR(l1d_cache_refill, ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL); | |
411 | ARMV8_EVENT_ATTR(l1d_cache, ARMV8_PMUV3_PERFCTR_L1D_CACHE); | |
412 | ARMV8_EVENT_ATTR(l1d_tlb_refill, ARMV8_PMUV3_PERFCTR_L1D_TLB_REFILL); | |
413 | ARMV8_EVENT_ATTR(ld_retired, ARMV8_PMUV3_PERFCTR_LD_RETIRED); | |
414 | ARMV8_EVENT_ATTR(st_retired, ARMV8_PMUV3_PERFCTR_ST_RETIRED); | |
415 | ARMV8_EVENT_ATTR(inst_retired, ARMV8_PMUV3_PERFCTR_INST_RETIRED); | |
9e9caa6a | 416 | ARMV8_EVENT_ATTR(exc_taken, ARMV8_PMUV3_PERFCTR_EXC_TAKEN); |
03598fdb AK |
417 | ARMV8_EVENT_ATTR(exc_return, ARMV8_PMUV3_PERFCTR_EXC_RETURN); |
418 | ARMV8_EVENT_ATTR(cid_write_retired, ARMV8_PMUV3_PERFCTR_CID_WRITE_RETIRED); | |
419 | ARMV8_EVENT_ATTR(pc_write_retired, ARMV8_PMUV3_PERFCTR_PC_WRITE_RETIRED); | |
420 | ARMV8_EVENT_ATTR(br_immed_retired, ARMV8_PMUV3_PERFCTR_BR_IMMED_RETIRED); | |
421 | ARMV8_EVENT_ATTR(br_return_retired, ARMV8_PMUV3_PERFCTR_BR_RETURN_RETIRED); | |
422 | ARMV8_EVENT_ATTR(unaligned_ldst_retired, ARMV8_PMUV3_PERFCTR_UNALIGNED_LDST_RETIRED); | |
423 | ARMV8_EVENT_ATTR(br_mis_pred, ARMV8_PMUV3_PERFCTR_BR_MIS_PRED); | |
424 | ARMV8_EVENT_ATTR(cpu_cycles, ARMV8_PMUV3_PERFCTR_CPU_CYCLES); | |
425 | ARMV8_EVENT_ATTR(br_pred, ARMV8_PMUV3_PERFCTR_BR_PRED); | |
9e9caa6a | 426 | ARMV8_EVENT_ATTR(mem_access, ARMV8_PMUV3_PERFCTR_MEM_ACCESS); |
03598fdb AK |
427 | ARMV8_EVENT_ATTR(l1i_cache, ARMV8_PMUV3_PERFCTR_L1I_CACHE); |
428 | ARMV8_EVENT_ATTR(l1d_cache_wb, ARMV8_PMUV3_PERFCTR_L1D_CACHE_WB); | |
429 | ARMV8_EVENT_ATTR(l2d_cache, ARMV8_PMUV3_PERFCTR_L2D_CACHE); | |
430 | ARMV8_EVENT_ATTR(l2d_cache_refill, ARMV8_PMUV3_PERFCTR_L2D_CACHE_REFILL); | |
431 | ARMV8_EVENT_ATTR(l2d_cache_wb, ARMV8_PMUV3_PERFCTR_L2D_CACHE_WB); | |
9e9caa6a | 432 | ARMV8_EVENT_ATTR(bus_access, ARMV8_PMUV3_PERFCTR_BUS_ACCESS); |
03598fdb AK |
433 | ARMV8_EVENT_ATTR(memory_error, ARMV8_PMUV3_PERFCTR_MEMORY_ERROR); |
434 | ARMV8_EVENT_ATTR(inst_spec, ARMV8_PMUV3_PERFCTR_INST_SPEC); | |
435 | ARMV8_EVENT_ATTR(ttbr_write_retired, ARMV8_PMUV3_PERFCTR_TTBR_WRITE_RETIRED); | |
9e9caa6a | 436 | ARMV8_EVENT_ATTR(bus_cycles, ARMV8_PMUV3_PERFCTR_BUS_CYCLES); |
4ba2578f | 437 | /* Don't expose the chain event in /sys, since it's useless in isolation */ |
9e9caa6a DR |
438 | ARMV8_EVENT_ATTR(l1d_cache_allocate, ARMV8_PMUV3_PERFCTR_L1D_CACHE_ALLOCATE); |
439 | ARMV8_EVENT_ATTR(l2d_cache_allocate, ARMV8_PMUV3_PERFCTR_L2D_CACHE_ALLOCATE); | |
440 | ARMV8_EVENT_ATTR(br_retired, ARMV8_PMUV3_PERFCTR_BR_RETIRED); | |
441 | ARMV8_EVENT_ATTR(br_mis_pred_retired, ARMV8_PMUV3_PERFCTR_BR_MIS_PRED_RETIRED); | |
442 | ARMV8_EVENT_ATTR(stall_frontend, ARMV8_PMUV3_PERFCTR_STALL_FRONTEND); | |
443 | ARMV8_EVENT_ATTR(stall_backend, ARMV8_PMUV3_PERFCTR_STALL_BACKEND); | |
444 | ARMV8_EVENT_ATTR(l1d_tlb, ARMV8_PMUV3_PERFCTR_L1D_TLB); | |
445 | ARMV8_EVENT_ATTR(l1i_tlb, ARMV8_PMUV3_PERFCTR_L1I_TLB); | |
446 | ARMV8_EVENT_ATTR(l2i_cache, ARMV8_PMUV3_PERFCTR_L2I_CACHE); | |
447 | ARMV8_EVENT_ATTR(l2i_cache_refill, ARMV8_PMUV3_PERFCTR_L2I_CACHE_REFILL); | |
448 | ARMV8_EVENT_ATTR(l3d_cache_allocate, ARMV8_PMUV3_PERFCTR_L3D_CACHE_ALLOCATE); | |
449 | ARMV8_EVENT_ATTR(l3d_cache_refill, ARMV8_PMUV3_PERFCTR_L3D_CACHE_REFILL); | |
450 | ARMV8_EVENT_ATTR(l3d_cache, ARMV8_PMUV3_PERFCTR_L3D_CACHE); | |
451 | ARMV8_EVENT_ATTR(l3d_cache_wb, ARMV8_PMUV3_PERFCTR_L3D_CACHE_WB); | |
452 | ARMV8_EVENT_ATTR(l2d_tlb_refill, ARMV8_PMUV3_PERFCTR_L2D_TLB_REFILL); | |
03598fdb | 453 | ARMV8_EVENT_ATTR(l2i_tlb_refill, ARMV8_PMUV3_PERFCTR_L2I_TLB_REFILL); |
9e9caa6a | 454 | ARMV8_EVENT_ATTR(l2d_tlb, ARMV8_PMUV3_PERFCTR_L2D_TLB); |
03598fdb | 455 | ARMV8_EVENT_ATTR(l2i_tlb, ARMV8_PMUV3_PERFCTR_L2I_TLB); |
9e9caa6a DR |
456 | |
457 | static struct attribute *armv8_pmuv3_event_attrs[] = { | |
458 | &armv8_event_attr_sw_incr.attr.attr, | |
459 | &armv8_event_attr_l1i_cache_refill.attr.attr, | |
460 | &armv8_event_attr_l1i_tlb_refill.attr.attr, | |
461 | &armv8_event_attr_l1d_cache_refill.attr.attr, | |
462 | &armv8_event_attr_l1d_cache.attr.attr, | |
463 | &armv8_event_attr_l1d_tlb_refill.attr.attr, | |
464 | &armv8_event_attr_ld_retired.attr.attr, | |
465 | &armv8_event_attr_st_retired.attr.attr, | |
466 | &armv8_event_attr_inst_retired.attr.attr, | |
467 | &armv8_event_attr_exc_taken.attr.attr, | |
468 | &armv8_event_attr_exc_return.attr.attr, | |
469 | &armv8_event_attr_cid_write_retired.attr.attr, | |
470 | &armv8_event_attr_pc_write_retired.attr.attr, | |
471 | &armv8_event_attr_br_immed_retired.attr.attr, | |
472 | &armv8_event_attr_br_return_retired.attr.attr, | |
473 | &armv8_event_attr_unaligned_ldst_retired.attr.attr, | |
474 | &armv8_event_attr_br_mis_pred.attr.attr, | |
475 | &armv8_event_attr_cpu_cycles.attr.attr, | |
476 | &armv8_event_attr_br_pred.attr.attr, | |
477 | &armv8_event_attr_mem_access.attr.attr, | |
478 | &armv8_event_attr_l1i_cache.attr.attr, | |
479 | &armv8_event_attr_l1d_cache_wb.attr.attr, | |
480 | &armv8_event_attr_l2d_cache.attr.attr, | |
481 | &armv8_event_attr_l2d_cache_refill.attr.attr, | |
482 | &armv8_event_attr_l2d_cache_wb.attr.attr, | |
483 | &armv8_event_attr_bus_access.attr.attr, | |
484 | &armv8_event_attr_memory_error.attr.attr, | |
485 | &armv8_event_attr_inst_spec.attr.attr, | |
486 | &armv8_event_attr_ttbr_write_retired.attr.attr, | |
487 | &armv8_event_attr_bus_cycles.attr.attr, | |
9e9caa6a DR |
488 | &armv8_event_attr_l1d_cache_allocate.attr.attr, |
489 | &armv8_event_attr_l2d_cache_allocate.attr.attr, | |
490 | &armv8_event_attr_br_retired.attr.attr, | |
491 | &armv8_event_attr_br_mis_pred_retired.attr.attr, | |
492 | &armv8_event_attr_stall_frontend.attr.attr, | |
493 | &armv8_event_attr_stall_backend.attr.attr, | |
494 | &armv8_event_attr_l1d_tlb.attr.attr, | |
495 | &armv8_event_attr_l1i_tlb.attr.attr, | |
496 | &armv8_event_attr_l2i_cache.attr.attr, | |
497 | &armv8_event_attr_l2i_cache_refill.attr.attr, | |
498 | &armv8_event_attr_l3d_cache_allocate.attr.attr, | |
499 | &armv8_event_attr_l3d_cache_refill.attr.attr, | |
500 | &armv8_event_attr_l3d_cache.attr.attr, | |
501 | &armv8_event_attr_l3d_cache_wb.attr.attr, | |
502 | &armv8_event_attr_l2d_tlb_refill.attr.attr, | |
03598fdb | 503 | &armv8_event_attr_l2i_tlb_refill.attr.attr, |
9e9caa6a | 504 | &armv8_event_attr_l2d_tlb.attr.attr, |
03598fdb | 505 | &armv8_event_attr_l2i_tlb.attr.attr, |
57d74123 | 506 | NULL, |
9e9caa6a DR |
507 | }; |
508 | ||
4b1a9e69 AK |
509 | static umode_t |
510 | armv8pmu_event_attr_is_visible(struct kobject *kobj, | |
511 | struct attribute *attr, int unused) | |
512 | { | |
513 | struct device *dev = kobj_to_dev(kobj); | |
514 | struct pmu *pmu = dev_get_drvdata(dev); | |
515 | struct arm_pmu *cpu_pmu = container_of(pmu, struct arm_pmu, pmu); | |
516 | struct perf_pmu_events_attr *pmu_attr; | |
517 | ||
518 | pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr.attr); | |
519 | ||
520 | if (test_bit(pmu_attr->id, cpu_pmu->pmceid_bitmap)) | |
521 | return attr->mode; | |
522 | ||
523 | return 0; | |
524 | } | |
525 | ||
9e9caa6a DR |
526 | static struct attribute_group armv8_pmuv3_events_attr_group = { |
527 | .name = "events", | |
528 | .attrs = armv8_pmuv3_event_attrs, | |
4b1a9e69 | 529 | .is_visible = armv8pmu_event_attr_is_visible, |
9e9caa6a DR |
530 | }; |
531 | ||
57d74123 WD |
532 | PMU_FORMAT_ATTR(event, "config:0-9"); |
533 | ||
534 | static struct attribute *armv8_pmuv3_format_attrs[] = { | |
535 | &format_attr_event.attr, | |
536 | NULL, | |
537 | }; | |
538 | ||
539 | static struct attribute_group armv8_pmuv3_format_attr_group = { | |
540 | .name = "format", | |
541 | .attrs = armv8_pmuv3_format_attrs, | |
542 | }; | |
543 | ||
03089688 WD |
544 | /* |
545 | * Perf Events' indices | |
546 | */ | |
547 | #define ARMV8_IDX_CYCLE_COUNTER 0 | |
548 | #define ARMV8_IDX_COUNTER0 1 | |
6475b2d8 MR |
549 | #define ARMV8_IDX_COUNTER_LAST(cpu_pmu) \ |
550 | (ARMV8_IDX_CYCLE_COUNTER + cpu_pmu->num_events - 1) | |
03089688 | 551 | |
03089688 WD |
552 | /* |
553 | * ARMv8 low level PMU access | |
554 | */ | |
555 | ||
556 | /* | |
557 | * Perf Event to low level counters mapping | |
558 | */ | |
559 | #define ARMV8_IDX_TO_COUNTER(x) \ | |
b8cfadfc | 560 | (((x) - ARMV8_IDX_COUNTER0) & ARMV8_PMU_COUNTER_MASK) |
03089688 WD |
561 | |
562 | static inline u32 armv8pmu_pmcr_read(void) | |
563 | { | |
bf2d4782 | 564 | return read_sysreg(pmcr_el0); |
03089688 WD |
565 | } |
566 | ||
567 | static inline void armv8pmu_pmcr_write(u32 val) | |
568 | { | |
b8cfadfc | 569 | val &= ARMV8_PMU_PMCR_MASK; |
03089688 | 570 | isb(); |
bf2d4782 | 571 | write_sysreg(val, pmcr_el0); |
03089688 WD |
572 | } |
573 | ||
574 | static inline int armv8pmu_has_overflowed(u32 pmovsr) | |
575 | { | |
b8cfadfc | 576 | return pmovsr & ARMV8_PMU_OVERFLOWED_MASK; |
03089688 WD |
577 | } |
578 | ||
6475b2d8 | 579 | static inline int armv8pmu_counter_valid(struct arm_pmu *cpu_pmu, int idx) |
03089688 | 580 | { |
6475b2d8 MR |
581 | return idx >= ARMV8_IDX_CYCLE_COUNTER && |
582 | idx <= ARMV8_IDX_COUNTER_LAST(cpu_pmu); | |
03089688 WD |
583 | } |
584 | ||
585 | static inline int armv8pmu_counter_has_overflowed(u32 pmnc, int idx) | |
586 | { | |
6475b2d8 | 587 | return pmnc & BIT(ARMV8_IDX_TO_COUNTER(idx)); |
03089688 WD |
588 | } |
589 | ||
590 | static inline int armv8pmu_select_counter(int idx) | |
591 | { | |
6475b2d8 | 592 | u32 counter = ARMV8_IDX_TO_COUNTER(idx); |
bf2d4782 | 593 | write_sysreg(counter, pmselr_el0); |
03089688 WD |
594 | isb(); |
595 | ||
596 | return idx; | |
597 | } | |
598 | ||
6475b2d8 | 599 | static inline u32 armv8pmu_read_counter(struct perf_event *event) |
03089688 | 600 | { |
6475b2d8 MR |
601 | struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu); |
602 | struct hw_perf_event *hwc = &event->hw; | |
603 | int idx = hwc->idx; | |
03089688 WD |
604 | u32 value = 0; |
605 | ||
6475b2d8 | 606 | if (!armv8pmu_counter_valid(cpu_pmu, idx)) |
03089688 WD |
607 | pr_err("CPU%u reading wrong counter %d\n", |
608 | smp_processor_id(), idx); | |
609 | else if (idx == ARMV8_IDX_CYCLE_COUNTER) | |
bf2d4782 | 610 | value = read_sysreg(pmccntr_el0); |
03089688 | 611 | else if (armv8pmu_select_counter(idx) == idx) |
bf2d4782 | 612 | value = read_sysreg(pmxevcntr_el0); |
03089688 WD |
613 | |
614 | return value; | |
615 | } | |
616 | ||
6475b2d8 | 617 | static inline void armv8pmu_write_counter(struct perf_event *event, u32 value) |
03089688 | 618 | { |
6475b2d8 MR |
619 | struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu); |
620 | struct hw_perf_event *hwc = &event->hw; | |
621 | int idx = hwc->idx; | |
622 | ||
623 | if (!armv8pmu_counter_valid(cpu_pmu, idx)) | |
03089688 WD |
624 | pr_err("CPU%u writing wrong counter %d\n", |
625 | smp_processor_id(), idx); | |
7175f059 JG |
626 | else if (idx == ARMV8_IDX_CYCLE_COUNTER) { |
627 | /* | |
628 | * Set the upper 32bits as this is a 64bit counter but we only | |
629 | * count using the lower 32bits and we want an interrupt when | |
630 | * it overflows. | |
631 | */ | |
632 | u64 value64 = 0xffffffff00000000ULL | value; | |
633 | ||
bf2d4782 | 634 | write_sysreg(value64, pmccntr_el0); |
7175f059 | 635 | } else if (armv8pmu_select_counter(idx) == idx) |
bf2d4782 | 636 | write_sysreg(value, pmxevcntr_el0); |
03089688 WD |
637 | } |
638 | ||
639 | static inline void armv8pmu_write_evtype(int idx, u32 val) | |
640 | { | |
641 | if (armv8pmu_select_counter(idx) == idx) { | |
b8cfadfc | 642 | val &= ARMV8_PMU_EVTYPE_MASK; |
bf2d4782 | 643 | write_sysreg(val, pmxevtyper_el0); |
03089688 WD |
644 | } |
645 | } | |
646 | ||
647 | static inline int armv8pmu_enable_counter(int idx) | |
648 | { | |
6475b2d8 | 649 | u32 counter = ARMV8_IDX_TO_COUNTER(idx); |
bf2d4782 | 650 | write_sysreg(BIT(counter), pmcntenset_el0); |
03089688 WD |
651 | return idx; |
652 | } | |
653 | ||
654 | static inline int armv8pmu_disable_counter(int idx) | |
655 | { | |
6475b2d8 | 656 | u32 counter = ARMV8_IDX_TO_COUNTER(idx); |
bf2d4782 | 657 | write_sysreg(BIT(counter), pmcntenclr_el0); |
03089688 WD |
658 | return idx; |
659 | } | |
660 | ||
661 | static inline int armv8pmu_enable_intens(int idx) | |
662 | { | |
6475b2d8 | 663 | u32 counter = ARMV8_IDX_TO_COUNTER(idx); |
bf2d4782 | 664 | write_sysreg(BIT(counter), pmintenset_el1); |
03089688 WD |
665 | return idx; |
666 | } | |
667 | ||
668 | static inline int armv8pmu_disable_intens(int idx) | |
669 | { | |
6475b2d8 | 670 | u32 counter = ARMV8_IDX_TO_COUNTER(idx); |
bf2d4782 | 671 | write_sysreg(BIT(counter), pmintenclr_el1); |
03089688 WD |
672 | isb(); |
673 | /* Clear the overflow flag in case an interrupt is pending. */ | |
bf2d4782 | 674 | write_sysreg(BIT(counter), pmovsclr_el0); |
03089688 | 675 | isb(); |
6475b2d8 | 676 | |
03089688 WD |
677 | return idx; |
678 | } | |
679 | ||
680 | static inline u32 armv8pmu_getreset_flags(void) | |
681 | { | |
682 | u32 value; | |
683 | ||
684 | /* Read */ | |
bf2d4782 | 685 | value = read_sysreg(pmovsclr_el0); |
03089688 WD |
686 | |
687 | /* Write to clear flags */ | |
b8cfadfc | 688 | value &= ARMV8_PMU_OVSR_MASK; |
bf2d4782 | 689 | write_sysreg(value, pmovsclr_el0); |
03089688 WD |
690 | |
691 | return value; | |
692 | } | |
693 | ||
6475b2d8 | 694 | static void armv8pmu_enable_event(struct perf_event *event) |
03089688 WD |
695 | { |
696 | unsigned long flags; | |
6475b2d8 MR |
697 | struct hw_perf_event *hwc = &event->hw; |
698 | struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu); | |
699 | struct pmu_hw_events *events = this_cpu_ptr(cpu_pmu->hw_events); | |
700 | int idx = hwc->idx; | |
03089688 WD |
701 | |
702 | /* | |
703 | * Enable counter and interrupt, and set the counter to count | |
704 | * the event that we're interested in. | |
705 | */ | |
706 | raw_spin_lock_irqsave(&events->pmu_lock, flags); | |
707 | ||
708 | /* | |
709 | * Disable counter | |
710 | */ | |
711 | armv8pmu_disable_counter(idx); | |
712 | ||
713 | /* | |
714 | * Set event (if destined for PMNx counters). | |
715 | */ | |
716 | armv8pmu_write_evtype(idx, hwc->config_base); | |
717 | ||
718 | /* | |
719 | * Enable interrupt for this counter | |
720 | */ | |
721 | armv8pmu_enable_intens(idx); | |
722 | ||
723 | /* | |
724 | * Enable counter | |
725 | */ | |
726 | armv8pmu_enable_counter(idx); | |
727 | ||
728 | raw_spin_unlock_irqrestore(&events->pmu_lock, flags); | |
729 | } | |
730 | ||
6475b2d8 | 731 | static void armv8pmu_disable_event(struct perf_event *event) |
03089688 WD |
732 | { |
733 | unsigned long flags; | |
6475b2d8 MR |
734 | struct hw_perf_event *hwc = &event->hw; |
735 | struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu); | |
736 | struct pmu_hw_events *events = this_cpu_ptr(cpu_pmu->hw_events); | |
737 | int idx = hwc->idx; | |
03089688 WD |
738 | |
739 | /* | |
740 | * Disable counter and interrupt | |
741 | */ | |
742 | raw_spin_lock_irqsave(&events->pmu_lock, flags); | |
743 | ||
744 | /* | |
745 | * Disable counter | |
746 | */ | |
747 | armv8pmu_disable_counter(idx); | |
748 | ||
749 | /* | |
750 | * Disable interrupt for this counter | |
751 | */ | |
752 | armv8pmu_disable_intens(idx); | |
753 | ||
754 | raw_spin_unlock_irqrestore(&events->pmu_lock, flags); | |
755 | } | |
756 | ||
757 | static irqreturn_t armv8pmu_handle_irq(int irq_num, void *dev) | |
758 | { | |
759 | u32 pmovsr; | |
760 | struct perf_sample_data data; | |
6475b2d8 MR |
761 | struct arm_pmu *cpu_pmu = (struct arm_pmu *)dev; |
762 | struct pmu_hw_events *cpuc = this_cpu_ptr(cpu_pmu->hw_events); | |
03089688 WD |
763 | struct pt_regs *regs; |
764 | int idx; | |
765 | ||
766 | /* | |
767 | * Get and reset the IRQ flags | |
768 | */ | |
769 | pmovsr = armv8pmu_getreset_flags(); | |
770 | ||
771 | /* | |
772 | * Did an overflow occur? | |
773 | */ | |
774 | if (!armv8pmu_has_overflowed(pmovsr)) | |
775 | return IRQ_NONE; | |
776 | ||
777 | /* | |
778 | * Handle the counter(s) overflow(s) | |
779 | */ | |
780 | regs = get_irq_regs(); | |
781 | ||
03089688 WD |
782 | for (idx = 0; idx < cpu_pmu->num_events; ++idx) { |
783 | struct perf_event *event = cpuc->events[idx]; | |
784 | struct hw_perf_event *hwc; | |
785 | ||
786 | /* Ignore if we don't have an event. */ | |
787 | if (!event) | |
788 | continue; | |
789 | ||
790 | /* | |
791 | * We have a single interrupt for all counters. Check that | |
792 | * each counter has overflowed before we process it. | |
793 | */ | |
794 | if (!armv8pmu_counter_has_overflowed(pmovsr, idx)) | |
795 | continue; | |
796 | ||
797 | hwc = &event->hw; | |
6475b2d8 | 798 | armpmu_event_update(event); |
03089688 | 799 | perf_sample_data_init(&data, 0, hwc->last_period); |
6475b2d8 | 800 | if (!armpmu_event_set_period(event)) |
03089688 WD |
801 | continue; |
802 | ||
803 | if (perf_event_overflow(event, &data, regs)) | |
6475b2d8 | 804 | cpu_pmu->disable(event); |
03089688 WD |
805 | } |
806 | ||
807 | /* | |
808 | * Handle the pending perf events. | |
809 | * | |
810 | * Note: this call *must* be run with interrupts disabled. For | |
811 | * platforms that can have the PMU interrupts raised as an NMI, this | |
812 | * will not work. | |
813 | */ | |
814 | irq_work_run(); | |
815 | ||
816 | return IRQ_HANDLED; | |
817 | } | |
818 | ||
6475b2d8 | 819 | static void armv8pmu_start(struct arm_pmu *cpu_pmu) |
03089688 WD |
820 | { |
821 | unsigned long flags; | |
6475b2d8 | 822 | struct pmu_hw_events *events = this_cpu_ptr(cpu_pmu->hw_events); |
03089688 WD |
823 | |
824 | raw_spin_lock_irqsave(&events->pmu_lock, flags); | |
825 | /* Enable all counters */ | |
b8cfadfc | 826 | armv8pmu_pmcr_write(armv8pmu_pmcr_read() | ARMV8_PMU_PMCR_E); |
03089688 WD |
827 | raw_spin_unlock_irqrestore(&events->pmu_lock, flags); |
828 | } | |
829 | ||
6475b2d8 | 830 | static void armv8pmu_stop(struct arm_pmu *cpu_pmu) |
03089688 WD |
831 | { |
832 | unsigned long flags; | |
6475b2d8 | 833 | struct pmu_hw_events *events = this_cpu_ptr(cpu_pmu->hw_events); |
03089688 WD |
834 | |
835 | raw_spin_lock_irqsave(&events->pmu_lock, flags); | |
836 | /* Disable all counters */ | |
b8cfadfc | 837 | armv8pmu_pmcr_write(armv8pmu_pmcr_read() & ~ARMV8_PMU_PMCR_E); |
03089688 WD |
838 | raw_spin_unlock_irqrestore(&events->pmu_lock, flags); |
839 | } | |
840 | ||
841 | static int armv8pmu_get_event_idx(struct pmu_hw_events *cpuc, | |
6475b2d8 | 842 | struct perf_event *event) |
03089688 WD |
843 | { |
844 | int idx; | |
6475b2d8 MR |
845 | struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu); |
846 | struct hw_perf_event *hwc = &event->hw; | |
b8cfadfc | 847 | unsigned long evtype = hwc->config_base & ARMV8_PMU_EVTYPE_EVENT; |
03089688 WD |
848 | |
849 | /* Always place a cycle counter into the cycle counter. */ | |
03598fdb | 850 | if (evtype == ARMV8_PMUV3_PERFCTR_CPU_CYCLES) { |
03089688 WD |
851 | if (test_and_set_bit(ARMV8_IDX_CYCLE_COUNTER, cpuc->used_mask)) |
852 | return -EAGAIN; | |
853 | ||
854 | return ARMV8_IDX_CYCLE_COUNTER; | |
855 | } | |
856 | ||
857 | /* | |
858 | * For anything other than a cycle counter, try and use | |
859 | * the events counters | |
860 | */ | |
861 | for (idx = ARMV8_IDX_COUNTER0; idx < cpu_pmu->num_events; ++idx) { | |
862 | if (!test_and_set_bit(idx, cpuc->used_mask)) | |
863 | return idx; | |
864 | } | |
865 | ||
866 | /* The counters are all in use. */ | |
867 | return -EAGAIN; | |
868 | } | |
869 | ||
870 | /* | |
871 | * Add an event filter to a given event. This will only work for PMUv2 PMUs. | |
872 | */ | |
873 | static int armv8pmu_set_event_filter(struct hw_perf_event *event, | |
874 | struct perf_event_attr *attr) | |
875 | { | |
876 | unsigned long config_base = 0; | |
877 | ||
878 | if (attr->exclude_idle) | |
879 | return -EPERM; | |
78a19cfd GK |
880 | |
881 | /* | |
882 | * If we're running in hyp mode, then we *are* the hypervisor. | |
883 | * Therefore we ignore exclude_hv in this configuration, since | |
884 | * there's no hypervisor to sample anyway. This is consistent | |
885 | * with other architectures (x86 and Power). | |
886 | */ | |
887 | if (is_kernel_in_hyp_mode()) { | |
888 | if (!attr->exclude_kernel) | |
889 | config_base |= ARMV8_PMU_INCLUDE_EL2; | |
890 | } else { | |
891 | if (attr->exclude_kernel) | |
892 | config_base |= ARMV8_PMU_EXCLUDE_EL1; | |
893 | if (!attr->exclude_hv) | |
894 | config_base |= ARMV8_PMU_INCLUDE_EL2; | |
895 | } | |
03089688 | 896 | if (attr->exclude_user) |
b8cfadfc | 897 | config_base |= ARMV8_PMU_EXCLUDE_EL0; |
03089688 WD |
898 | |
899 | /* | |
900 | * Install the filter into config_base as this is used to | |
901 | * construct the event type. | |
902 | */ | |
903 | event->config_base = config_base; | |
904 | ||
905 | return 0; | |
906 | } | |
907 | ||
908 | static void armv8pmu_reset(void *info) | |
909 | { | |
6475b2d8 | 910 | struct arm_pmu *cpu_pmu = (struct arm_pmu *)info; |
03089688 WD |
911 | u32 idx, nb_cnt = cpu_pmu->num_events; |
912 | ||
913 | /* The counter and interrupt enable registers are unknown at reset. */ | |
6475b2d8 MR |
914 | for (idx = ARMV8_IDX_CYCLE_COUNTER; idx < nb_cnt; ++idx) { |
915 | armv8pmu_disable_counter(idx); | |
916 | armv8pmu_disable_intens(idx); | |
917 | } | |
03089688 | 918 | |
7175f059 JG |
919 | /* |
920 | * Initialize & Reset PMNC. Request overflow interrupt for | |
921 | * 64 bit cycle counter but cheat in armv8pmu_write_counter(). | |
922 | */ | |
b8cfadfc SZ |
923 | armv8pmu_pmcr_write(ARMV8_PMU_PMCR_P | ARMV8_PMU_PMCR_C | |
924 | ARMV8_PMU_PMCR_LC); | |
03089688 WD |
925 | } |
926 | ||
927 | static int armv8_pmuv3_map_event(struct perf_event *event) | |
928 | { | |
236b9b91 JL |
929 | int hw_event_id; |
930 | struct arm_pmu *armpmu = to_arm_pmu(event->pmu); | |
931 | ||
932 | hw_event_id = armpmu_map_event(event, &armv8_pmuv3_perf_map, | |
933 | &armv8_pmuv3_perf_cache_map, | |
934 | ARMV8_PMU_EVTYPE_EVENT); | |
935 | if (hw_event_id < 0) | |
936 | return hw_event_id; | |
937 | ||
938 | /* disable micro/arch events not supported by this PMU */ | |
939 | if ((hw_event_id < ARMV8_PMUV3_MAX_COMMON_EVENTS) && | |
940 | !test_bit(hw_event_id, armpmu->pmceid_bitmap)) { | |
941 | return -EOPNOTSUPP; | |
942 | } | |
943 | ||
944 | return hw_event_id; | |
03089688 WD |
945 | } |
946 | ||
ac82d127 MR |
947 | static int armv8_a53_map_event(struct perf_event *event) |
948 | { | |
949 | return armpmu_map_event(event, &armv8_a53_perf_map, | |
950 | &armv8_a53_perf_cache_map, | |
b8cfadfc | 951 | ARMV8_PMU_EVTYPE_EVENT); |
ac82d127 MR |
952 | } |
953 | ||
62a4dda9 MR |
954 | static int armv8_a57_map_event(struct perf_event *event) |
955 | { | |
956 | return armpmu_map_event(event, &armv8_a57_perf_map, | |
957 | &armv8_a57_perf_cache_map, | |
b8cfadfc | 958 | ARMV8_PMU_EVTYPE_EVENT); |
62a4dda9 MR |
959 | } |
960 | ||
d0aa2bff JG |
961 | static int armv8_thunder_map_event(struct perf_event *event) |
962 | { | |
963 | return armpmu_map_event(event, &armv8_thunder_perf_map, | |
964 | &armv8_thunder_perf_cache_map, | |
b8cfadfc | 965 | ARMV8_PMU_EVTYPE_EVENT); |
d0aa2bff JG |
966 | } |
967 | ||
201a72b2 AK |
968 | static int armv8_vulcan_map_event(struct perf_event *event) |
969 | { | |
970 | return armpmu_map_event(event, &armv8_vulcan_perf_map, | |
971 | &armv8_vulcan_perf_cache_map, | |
972 | ARMV8_PMU_EVTYPE_EVENT); | |
973 | } | |
974 | ||
f1b36dcb MR |
975 | struct armv8pmu_probe_info { |
976 | struct arm_pmu *pmu; | |
977 | bool present; | |
978 | }; | |
979 | ||
4b1a9e69 | 980 | static void __armv8pmu_probe_pmu(void *info) |
03089688 | 981 | { |
f1b36dcb MR |
982 | struct armv8pmu_probe_info *probe = info; |
983 | struct arm_pmu *cpu_pmu = probe->pmu; | |
faa9a083 | 984 | u64 dfr0; |
4b1a9e69 | 985 | u32 pmceid[2]; |
faa9a083 | 986 | int pmuver; |
03089688 | 987 | |
f1b36dcb | 988 | dfr0 = read_sysreg(id_aa64dfr0_el1); |
faa9a083 | 989 | pmuver = cpuid_feature_extract_signed_field(dfr0, |
f1b36dcb | 990 | ID_AA64DFR0_PMUVER_SHIFT); |
faa9a083 | 991 | if (pmuver < 1) |
f1b36dcb MR |
992 | return; |
993 | ||
994 | probe->present = true; | |
995 | ||
03089688 | 996 | /* Read the nb of CNTx counters supported from PMNC */ |
4b1a9e69 AK |
997 | cpu_pmu->num_events = (armv8pmu_pmcr_read() >> ARMV8_PMU_PMCR_N_SHIFT) |
998 | & ARMV8_PMU_PMCR_N_MASK; | |
03089688 | 999 | |
6475b2d8 | 1000 | /* Add the CPU cycles counter */ |
4b1a9e69 AK |
1001 | cpu_pmu->num_events += 1; |
1002 | ||
1003 | pmceid[0] = read_sysreg(pmceid0_el0); | |
1004 | pmceid[1] = read_sysreg(pmceid1_el0); | |
1005 | ||
1006 | bitmap_from_u32array(cpu_pmu->pmceid_bitmap, | |
1007 | ARMV8_PMUV3_MAX_COMMON_EVENTS, pmceid, | |
1008 | ARRAY_SIZE(pmceid)); | |
03089688 WD |
1009 | } |
1010 | ||
4b1a9e69 | 1011 | static int armv8pmu_probe_pmu(struct arm_pmu *cpu_pmu) |
03089688 | 1012 | { |
f1b36dcb MR |
1013 | struct armv8pmu_probe_info probe = { |
1014 | .pmu = cpu_pmu, | |
1015 | .present = false, | |
1016 | }; | |
1017 | int ret; | |
1018 | ||
1019 | ret = smp_call_function_any(&cpu_pmu->supported_cpus, | |
4b1a9e69 | 1020 | __armv8pmu_probe_pmu, |
f1b36dcb MR |
1021 | &probe, 1); |
1022 | if (ret) | |
1023 | return ret; | |
1024 | ||
1025 | return probe.present ? 0 : -ENODEV; | |
03089688 WD |
1026 | } |
1027 | ||
f1b36dcb | 1028 | static int armv8_pmu_init(struct arm_pmu *cpu_pmu) |
03089688 | 1029 | { |
f1b36dcb MR |
1030 | int ret = armv8pmu_probe_pmu(cpu_pmu); |
1031 | if (ret) | |
1032 | return ret; | |
1033 | ||
6475b2d8 MR |
1034 | cpu_pmu->handle_irq = armv8pmu_handle_irq, |
1035 | cpu_pmu->enable = armv8pmu_enable_event, | |
1036 | cpu_pmu->disable = armv8pmu_disable_event, | |
1037 | cpu_pmu->read_counter = armv8pmu_read_counter, | |
1038 | cpu_pmu->write_counter = armv8pmu_write_counter, | |
1039 | cpu_pmu->get_event_idx = armv8pmu_get_event_idx, | |
1040 | cpu_pmu->start = armv8pmu_start, | |
1041 | cpu_pmu->stop = armv8pmu_stop, | |
1042 | cpu_pmu->reset = armv8pmu_reset, | |
1043 | cpu_pmu->max_period = (1LLU << 32) - 1, | |
ac82d127 | 1044 | cpu_pmu->set_event_filter = armv8pmu_set_event_filter; |
f1b36dcb MR |
1045 | |
1046 | return 0; | |
ac82d127 MR |
1047 | } |
1048 | ||
1049 | static int armv8_pmuv3_init(struct arm_pmu *cpu_pmu) | |
1050 | { | |
f1b36dcb MR |
1051 | int ret = armv8_pmu_init(cpu_pmu); |
1052 | if (ret) | |
1053 | return ret; | |
1054 | ||
6475b2d8 MR |
1055 | cpu_pmu->name = "armv8_pmuv3"; |
1056 | cpu_pmu->map_event = armv8_pmuv3_map_event; | |
569de902 MR |
1057 | cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = |
1058 | &armv8_pmuv3_events_attr_group; | |
1059 | cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = | |
1060 | &armv8_pmuv3_format_attr_group; | |
f1b36dcb MR |
1061 | |
1062 | return 0; | |
ac82d127 MR |
1063 | } |
1064 | ||
1065 | static int armv8_a53_pmu_init(struct arm_pmu *cpu_pmu) | |
1066 | { | |
f1b36dcb MR |
1067 | int ret = armv8_pmu_init(cpu_pmu); |
1068 | if (ret) | |
1069 | return ret; | |
1070 | ||
ac82d127 MR |
1071 | cpu_pmu->name = "armv8_cortex_a53"; |
1072 | cpu_pmu->map_event = armv8_a53_map_event; | |
569de902 MR |
1073 | cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = |
1074 | &armv8_pmuv3_events_attr_group; | |
1075 | cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = | |
1076 | &armv8_pmuv3_format_attr_group; | |
f1b36dcb MR |
1077 | |
1078 | return 0; | |
03089688 | 1079 | } |
03089688 | 1080 | |
62a4dda9 MR |
1081 | static int armv8_a57_pmu_init(struct arm_pmu *cpu_pmu) |
1082 | { | |
f1b36dcb MR |
1083 | int ret = armv8_pmu_init(cpu_pmu); |
1084 | if (ret) | |
1085 | return ret; | |
1086 | ||
62a4dda9 MR |
1087 | cpu_pmu->name = "armv8_cortex_a57"; |
1088 | cpu_pmu->map_event = armv8_a57_map_event; | |
569de902 MR |
1089 | cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = |
1090 | &armv8_pmuv3_events_attr_group; | |
1091 | cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = | |
1092 | &armv8_pmuv3_format_attr_group; | |
f1b36dcb MR |
1093 | |
1094 | return 0; | |
62a4dda9 MR |
1095 | } |
1096 | ||
5d7ee877 WD |
1097 | static int armv8_a72_pmu_init(struct arm_pmu *cpu_pmu) |
1098 | { | |
f1b36dcb MR |
1099 | int ret = armv8_pmu_init(cpu_pmu); |
1100 | if (ret) | |
1101 | return ret; | |
1102 | ||
5d7ee877 WD |
1103 | cpu_pmu->name = "armv8_cortex_a72"; |
1104 | cpu_pmu->map_event = armv8_a57_map_event; | |
569de902 MR |
1105 | cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = |
1106 | &armv8_pmuv3_events_attr_group; | |
1107 | cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = | |
1108 | &armv8_pmuv3_format_attr_group; | |
f1b36dcb MR |
1109 | |
1110 | return 0; | |
5d7ee877 WD |
1111 | } |
1112 | ||
d0aa2bff JG |
1113 | static int armv8_thunder_pmu_init(struct arm_pmu *cpu_pmu) |
1114 | { | |
f1b36dcb MR |
1115 | int ret = armv8_pmu_init(cpu_pmu); |
1116 | if (ret) | |
1117 | return ret; | |
1118 | ||
d0aa2bff JG |
1119 | cpu_pmu->name = "armv8_cavium_thunder"; |
1120 | cpu_pmu->map_event = armv8_thunder_map_event; | |
569de902 MR |
1121 | cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = |
1122 | &armv8_pmuv3_events_attr_group; | |
1123 | cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = | |
1124 | &armv8_pmuv3_format_attr_group; | |
f1b36dcb MR |
1125 | |
1126 | return 0; | |
d0aa2bff JG |
1127 | } |
1128 | ||
201a72b2 AK |
1129 | static int armv8_vulcan_pmu_init(struct arm_pmu *cpu_pmu) |
1130 | { | |
f1b36dcb MR |
1131 | int ret = armv8_pmu_init(cpu_pmu); |
1132 | if (ret) | |
1133 | return ret; | |
1134 | ||
201a72b2 AK |
1135 | cpu_pmu->name = "armv8_brcm_vulcan"; |
1136 | cpu_pmu->map_event = armv8_vulcan_map_event; | |
569de902 MR |
1137 | cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = |
1138 | &armv8_pmuv3_events_attr_group; | |
1139 | cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = | |
1140 | &armv8_pmuv3_format_attr_group; | |
f1b36dcb MR |
1141 | |
1142 | return 0; | |
201a72b2 AK |
1143 | } |
1144 | ||
6475b2d8 MR |
1145 | static const struct of_device_id armv8_pmu_of_device_ids[] = { |
1146 | {.compatible = "arm,armv8-pmuv3", .data = armv8_pmuv3_init}, | |
ac82d127 | 1147 | {.compatible = "arm,cortex-a53-pmu", .data = armv8_a53_pmu_init}, |
62a4dda9 | 1148 | {.compatible = "arm,cortex-a57-pmu", .data = armv8_a57_pmu_init}, |
5d7ee877 | 1149 | {.compatible = "arm,cortex-a72-pmu", .data = armv8_a72_pmu_init}, |
d0aa2bff | 1150 | {.compatible = "cavium,thunder-pmu", .data = armv8_thunder_pmu_init}, |
201a72b2 | 1151 | {.compatible = "brcm,vulcan-pmu", .data = armv8_vulcan_pmu_init}, |
03089688 WD |
1152 | {}, |
1153 | }; | |
1154 | ||
6475b2d8 | 1155 | static int armv8_pmu_device_probe(struct platform_device *pdev) |
03089688 | 1156 | { |
f00fa5f4 | 1157 | return arm_pmu_device_probe(pdev, armv8_pmu_of_device_ids, NULL); |
03089688 WD |
1158 | } |
1159 | ||
6475b2d8 | 1160 | static struct platform_driver armv8_pmu_driver = { |
03089688 | 1161 | .driver = { |
85023b2e | 1162 | .name = ARMV8_PMU_PDEV_NAME, |
6475b2d8 | 1163 | .of_match_table = armv8_pmu_of_device_ids, |
03089688 | 1164 | }, |
6475b2d8 | 1165 | .probe = armv8_pmu_device_probe, |
03089688 WD |
1166 | }; |
1167 | ||
f00fa5f4 MR |
1168 | static int __init armv8_pmu_driver_init(void) |
1169 | { | |
1170 | if (acpi_disabled) | |
1171 | return platform_driver_register(&armv8_pmu_driver); | |
1172 | else | |
1173 | return arm_pmu_acpi_probe(armv8_pmuv3_init); | |
1174 | } | |
1175 | device_initcall(armv8_pmu_driver_init) |