2 * ARMv7 Cortex-A8 and Cortex-A9 Performance Events handling code.
4 * ARMv7 support: Jean Pihet <jpihet@mvista.com>
5 * 2010 (c) MontaVista Software, LLC.
7 * Copied from ARMv6 code, with the low level code inspired
8 * by the ARMv7 Oprofile code.
10 * Cortex-A8 has up to 4 configurable performance counters and
11 * a single cycle counter.
12 * Cortex-A9 has up to 31 configurable performance counters and
13 * a single cycle counter.
15 * All counters can be enabled/disabled and IRQ masked separately. The cycle
16 * counter and all 4 performance counters together can be reset separately.
22 #include <asm/cputype.h>
23 #include <asm/irq_regs.h>
25 #include "../vfp/vfpinstr.h"
28 #include <linux/perf/arm_pmu.h>
29 #include <linux/platform_device.h>
32 * Common ARMv7 event types
34 * Note: An implementation may not be able to count all of these events
35 * but the encodings are considered to be `reserved' in the case that
36 * they are not available.
38 #define ARMV7_PERFCTR_PMNC_SW_INCR 0x00
39 #define ARMV7_PERFCTR_L1_ICACHE_REFILL 0x01
40 #define ARMV7_PERFCTR_ITLB_REFILL 0x02
41 #define ARMV7_PERFCTR_L1_DCACHE_REFILL 0x03
42 #define ARMV7_PERFCTR_L1_DCACHE_ACCESS 0x04
43 #define ARMV7_PERFCTR_DTLB_REFILL 0x05
44 #define ARMV7_PERFCTR_MEM_READ 0x06
45 #define ARMV7_PERFCTR_MEM_WRITE 0x07
46 #define ARMV7_PERFCTR_INSTR_EXECUTED 0x08
47 #define ARMV7_PERFCTR_EXC_TAKEN 0x09
48 #define ARMV7_PERFCTR_EXC_EXECUTED 0x0A
49 #define ARMV7_PERFCTR_CID_WRITE 0x0B
52 * ARMV7_PERFCTR_PC_WRITE is equivalent to HW_BRANCH_INSTRUCTIONS.
54 * - all (taken) branch instructions,
55 * - instructions that explicitly write the PC,
56 * - exception generating instructions.
58 #define ARMV7_PERFCTR_PC_WRITE 0x0C
59 #define ARMV7_PERFCTR_PC_IMM_BRANCH 0x0D
60 #define ARMV7_PERFCTR_PC_PROC_RETURN 0x0E
61 #define ARMV7_PERFCTR_MEM_UNALIGNED_ACCESS 0x0F
62 #define ARMV7_PERFCTR_PC_BRANCH_MIS_PRED 0x10
63 #define ARMV7_PERFCTR_CLOCK_CYCLES 0x11
64 #define ARMV7_PERFCTR_PC_BRANCH_PRED 0x12
66 /* These events are defined by the PMUv2 supplement (ARM DDI 0457A). */
67 #define ARMV7_PERFCTR_MEM_ACCESS 0x13
68 #define ARMV7_PERFCTR_L1_ICACHE_ACCESS 0x14
69 #define ARMV7_PERFCTR_L1_DCACHE_WB 0x15
70 #define ARMV7_PERFCTR_L2_CACHE_ACCESS 0x16
71 #define ARMV7_PERFCTR_L2_CACHE_REFILL 0x17
72 #define ARMV7_PERFCTR_L2_CACHE_WB 0x18
73 #define ARMV7_PERFCTR_BUS_ACCESS 0x19
74 #define ARMV7_PERFCTR_MEM_ERROR 0x1A
75 #define ARMV7_PERFCTR_INSTR_SPEC 0x1B
76 #define ARMV7_PERFCTR_TTBR_WRITE 0x1C
77 #define ARMV7_PERFCTR_BUS_CYCLES 0x1D
79 #define ARMV7_PERFCTR_CPU_CYCLES 0xFF
81 /* ARMv7 Cortex-A8 specific event types */
82 #define ARMV7_A8_PERFCTR_L2_CACHE_ACCESS 0x43
83 #define ARMV7_A8_PERFCTR_L2_CACHE_REFILL 0x44
84 #define ARMV7_A8_PERFCTR_L1_ICACHE_ACCESS 0x50
85 #define ARMV7_A8_PERFCTR_STALL_ISIDE 0x56
87 /* ARMv7 Cortex-A9 specific event types */
88 #define ARMV7_A9_PERFCTR_INSTR_CORE_RENAME 0x68
89 #define ARMV7_A9_PERFCTR_STALL_ICACHE 0x60
90 #define ARMV7_A9_PERFCTR_STALL_DISPATCH 0x66
92 /* ARMv7 Cortex-A5 specific event types */
93 #define ARMV7_A5_PERFCTR_PREFETCH_LINEFILL 0xc2
94 #define ARMV7_A5_PERFCTR_PREFETCH_LINEFILL_DROP 0xc3
96 /* ARMv7 Cortex-A15 specific event types */
97 #define ARMV7_A15_PERFCTR_L1_DCACHE_ACCESS_READ 0x40
98 #define ARMV7_A15_PERFCTR_L1_DCACHE_ACCESS_WRITE 0x41
99 #define ARMV7_A15_PERFCTR_L1_DCACHE_REFILL_READ 0x42
100 #define ARMV7_A15_PERFCTR_L1_DCACHE_REFILL_WRITE 0x43
102 #define ARMV7_A15_PERFCTR_DTLB_REFILL_L1_READ 0x4C
103 #define ARMV7_A15_PERFCTR_DTLB_REFILL_L1_WRITE 0x4D
105 #define ARMV7_A15_PERFCTR_L2_CACHE_ACCESS_READ 0x50
106 #define ARMV7_A15_PERFCTR_L2_CACHE_ACCESS_WRITE 0x51
107 #define ARMV7_A15_PERFCTR_L2_CACHE_REFILL_READ 0x52
108 #define ARMV7_A15_PERFCTR_L2_CACHE_REFILL_WRITE 0x53
110 #define ARMV7_A15_PERFCTR_PC_WRITE_SPEC 0x76
112 /* ARMv7 Cortex-A12 specific event types */
113 #define ARMV7_A12_PERFCTR_L1_DCACHE_ACCESS_READ 0x40
114 #define ARMV7_A12_PERFCTR_L1_DCACHE_ACCESS_WRITE 0x41
116 #define ARMV7_A12_PERFCTR_L2_CACHE_ACCESS_READ 0x50
117 #define ARMV7_A12_PERFCTR_L2_CACHE_ACCESS_WRITE 0x51
119 #define ARMV7_A12_PERFCTR_PC_WRITE_SPEC 0x76
121 #define ARMV7_A12_PERFCTR_PF_TLB_REFILL 0xe7
123 /* ARMv7 Krait specific event types */
124 #define KRAIT_PMRESR0_GROUP0 0xcc
125 #define KRAIT_PMRESR1_GROUP0 0xd0
126 #define KRAIT_PMRESR2_GROUP0 0xd4
127 #define KRAIT_VPMRESR0_GROUP0 0xd8
129 #define KRAIT_PERFCTR_L1_ICACHE_ACCESS 0x10011
130 #define KRAIT_PERFCTR_L1_ICACHE_MISS 0x10010
132 #define KRAIT_PERFCTR_L1_ITLB_ACCESS 0x12222
133 #define KRAIT_PERFCTR_L1_DTLB_ACCESS 0x12210
135 /* ARMv7 Scorpion specific event types */
136 #define SCORPION_LPM0_GROUP0 0x4c
137 #define SCORPION_LPM1_GROUP0 0x50
138 #define SCORPION_LPM2_GROUP0 0x54
139 #define SCORPION_L2LPM_GROUP0 0x58
140 #define SCORPION_VLPM_GROUP0 0x5c
142 #define SCORPION_ICACHE_ACCESS 0x10053
143 #define SCORPION_ICACHE_MISS 0x10052
145 #define SCORPION_DTLB_ACCESS 0x12013
146 #define SCORPION_DTLB_MISS 0x12012
148 #define SCORPION_ITLB_MISS 0x12021
151 * Cortex-A8 HW events mapping
153 * The hardware events that we support. We do support cache operations but
154 * we have harvard caches and no way to combine instruction and data
155 * accesses/misses in hardware.
157 static const unsigned armv7_a8_perf_map
[PERF_COUNT_HW_MAX
] = {
158 PERF_MAP_ALL_UNSUPPORTED
,
159 [PERF_COUNT_HW_CPU_CYCLES
] = ARMV7_PERFCTR_CPU_CYCLES
,
160 [PERF_COUNT_HW_INSTRUCTIONS
] = ARMV7_PERFCTR_INSTR_EXECUTED
,
161 [PERF_COUNT_HW_CACHE_REFERENCES
] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
162 [PERF_COUNT_HW_CACHE_MISSES
] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
163 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS
] = ARMV7_PERFCTR_PC_WRITE
,
164 [PERF_COUNT_HW_BRANCH_MISSES
] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
165 [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
] = ARMV7_A8_PERFCTR_STALL_ISIDE
,
168 static const unsigned armv7_a8_perf_cache_map
[PERF_COUNT_HW_CACHE_MAX
]
169 [PERF_COUNT_HW_CACHE_OP_MAX
]
170 [PERF_COUNT_HW_CACHE_RESULT_MAX
] = {
171 PERF_CACHE_MAP_ALL_UNSUPPORTED
,
174 * The performance counters don't differentiate between read and write
175 * accesses/misses so this isn't strictly correct, but it's the best we
176 * can do. Writes and reads get combined.
178 [C(L1D
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
179 [C(L1D
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
180 [C(L1D
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
181 [C(L1D
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
183 [C(L1I
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_A8_PERFCTR_L1_ICACHE_ACCESS
,
184 [C(L1I
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_ICACHE_REFILL
,
186 [C(LL
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_A8_PERFCTR_L2_CACHE_ACCESS
,
187 [C(LL
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_A8_PERFCTR_L2_CACHE_REFILL
,
188 [C(LL
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_A8_PERFCTR_L2_CACHE_ACCESS
,
189 [C(LL
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_A8_PERFCTR_L2_CACHE_REFILL
,
191 [C(DTLB
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_DTLB_REFILL
,
192 [C(DTLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_DTLB_REFILL
,
194 [C(ITLB
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_ITLB_REFILL
,
195 [C(ITLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_ITLB_REFILL
,
197 [C(BPU
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
198 [C(BPU
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
199 [C(BPU
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
200 [C(BPU
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
204 * Cortex-A9 HW events mapping
206 static const unsigned armv7_a9_perf_map
[PERF_COUNT_HW_MAX
] = {
207 PERF_MAP_ALL_UNSUPPORTED
,
208 [PERF_COUNT_HW_CPU_CYCLES
] = ARMV7_PERFCTR_CPU_CYCLES
,
209 [PERF_COUNT_HW_INSTRUCTIONS
] = ARMV7_A9_PERFCTR_INSTR_CORE_RENAME
,
210 [PERF_COUNT_HW_CACHE_REFERENCES
] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
211 [PERF_COUNT_HW_CACHE_MISSES
] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
212 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS
] = ARMV7_PERFCTR_PC_WRITE
,
213 [PERF_COUNT_HW_BRANCH_MISSES
] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
214 [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
] = ARMV7_A9_PERFCTR_STALL_ICACHE
,
215 [PERF_COUNT_HW_STALLED_CYCLES_BACKEND
] = ARMV7_A9_PERFCTR_STALL_DISPATCH
,
218 static const unsigned armv7_a9_perf_cache_map
[PERF_COUNT_HW_CACHE_MAX
]
219 [PERF_COUNT_HW_CACHE_OP_MAX
]
220 [PERF_COUNT_HW_CACHE_RESULT_MAX
] = {
221 PERF_CACHE_MAP_ALL_UNSUPPORTED
,
224 * The performance counters don't differentiate between read and write
225 * accesses/misses so this isn't strictly correct, but it's the best we
226 * can do. Writes and reads get combined.
228 [C(L1D
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
229 [C(L1D
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
230 [C(L1D
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
231 [C(L1D
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
233 [C(L1I
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_ICACHE_REFILL
,
235 [C(DTLB
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_DTLB_REFILL
,
236 [C(DTLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_DTLB_REFILL
,
238 [C(ITLB
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_ITLB_REFILL
,
239 [C(ITLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_ITLB_REFILL
,
241 [C(BPU
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
242 [C(BPU
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
243 [C(BPU
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
244 [C(BPU
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
248 * Cortex-A5 HW events mapping
250 static const unsigned armv7_a5_perf_map
[PERF_COUNT_HW_MAX
] = {
251 PERF_MAP_ALL_UNSUPPORTED
,
252 [PERF_COUNT_HW_CPU_CYCLES
] = ARMV7_PERFCTR_CPU_CYCLES
,
253 [PERF_COUNT_HW_INSTRUCTIONS
] = ARMV7_PERFCTR_INSTR_EXECUTED
,
254 [PERF_COUNT_HW_CACHE_REFERENCES
] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
255 [PERF_COUNT_HW_CACHE_MISSES
] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
256 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS
] = ARMV7_PERFCTR_PC_WRITE
,
257 [PERF_COUNT_HW_BRANCH_MISSES
] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
260 static const unsigned armv7_a5_perf_cache_map
[PERF_COUNT_HW_CACHE_MAX
]
261 [PERF_COUNT_HW_CACHE_OP_MAX
]
262 [PERF_COUNT_HW_CACHE_RESULT_MAX
] = {
263 PERF_CACHE_MAP_ALL_UNSUPPORTED
,
265 [C(L1D
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
266 [C(L1D
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
267 [C(L1D
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
268 [C(L1D
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
269 [C(L1D
)][C(OP_PREFETCH
)][C(RESULT_ACCESS
)] = ARMV7_A5_PERFCTR_PREFETCH_LINEFILL
,
270 [C(L1D
)][C(OP_PREFETCH
)][C(RESULT_MISS
)] = ARMV7_A5_PERFCTR_PREFETCH_LINEFILL_DROP
,
272 [C(L1I
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_ICACHE_ACCESS
,
273 [C(L1I
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_ICACHE_REFILL
,
275 * The prefetch counters don't differentiate between the I side and the
278 [C(L1I
)][C(OP_PREFETCH
)][C(RESULT_ACCESS
)] = ARMV7_A5_PERFCTR_PREFETCH_LINEFILL
,
279 [C(L1I
)][C(OP_PREFETCH
)][C(RESULT_MISS
)] = ARMV7_A5_PERFCTR_PREFETCH_LINEFILL_DROP
,
281 [C(DTLB
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_DTLB_REFILL
,
282 [C(DTLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_DTLB_REFILL
,
284 [C(ITLB
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_ITLB_REFILL
,
285 [C(ITLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_ITLB_REFILL
,
287 [C(BPU
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
288 [C(BPU
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
289 [C(BPU
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
290 [C(BPU
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
294 * Cortex-A15 HW events mapping
296 static const unsigned armv7_a15_perf_map
[PERF_COUNT_HW_MAX
] = {
297 PERF_MAP_ALL_UNSUPPORTED
,
298 [PERF_COUNT_HW_CPU_CYCLES
] = ARMV7_PERFCTR_CPU_CYCLES
,
299 [PERF_COUNT_HW_INSTRUCTIONS
] = ARMV7_PERFCTR_INSTR_EXECUTED
,
300 [PERF_COUNT_HW_CACHE_REFERENCES
] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
301 [PERF_COUNT_HW_CACHE_MISSES
] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
302 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS
] = ARMV7_A15_PERFCTR_PC_WRITE_SPEC
,
303 [PERF_COUNT_HW_BRANCH_MISSES
] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
304 [PERF_COUNT_HW_BUS_CYCLES
] = ARMV7_PERFCTR_BUS_CYCLES
,
307 static const unsigned armv7_a15_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
,
312 [C(L1D
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_A15_PERFCTR_L1_DCACHE_ACCESS_READ
,
313 [C(L1D
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_A15_PERFCTR_L1_DCACHE_REFILL_READ
,
314 [C(L1D
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_A15_PERFCTR_L1_DCACHE_ACCESS_WRITE
,
315 [C(L1D
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_A15_PERFCTR_L1_DCACHE_REFILL_WRITE
,
318 * Not all performance counters differentiate between read and write
319 * accesses/misses so we're not always strictly correct, but it's the
320 * best we can do. Writes and reads get combined in these cases.
322 [C(L1I
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_ICACHE_ACCESS
,
323 [C(L1I
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_ICACHE_REFILL
,
325 [C(LL
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_A15_PERFCTR_L2_CACHE_ACCESS_READ
,
326 [C(LL
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_A15_PERFCTR_L2_CACHE_REFILL_READ
,
327 [C(LL
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_A15_PERFCTR_L2_CACHE_ACCESS_WRITE
,
328 [C(LL
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_A15_PERFCTR_L2_CACHE_REFILL_WRITE
,
330 [C(DTLB
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_A15_PERFCTR_DTLB_REFILL_L1_READ
,
331 [C(DTLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_A15_PERFCTR_DTLB_REFILL_L1_WRITE
,
333 [C(ITLB
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_ITLB_REFILL
,
334 [C(ITLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_ITLB_REFILL
,
336 [C(BPU
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
337 [C(BPU
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
338 [C(BPU
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
339 [C(BPU
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
343 * Cortex-A7 HW events mapping
345 static const unsigned armv7_a7_perf_map
[PERF_COUNT_HW_MAX
] = {
346 PERF_MAP_ALL_UNSUPPORTED
,
347 [PERF_COUNT_HW_CPU_CYCLES
] = ARMV7_PERFCTR_CPU_CYCLES
,
348 [PERF_COUNT_HW_INSTRUCTIONS
] = ARMV7_PERFCTR_INSTR_EXECUTED
,
349 [PERF_COUNT_HW_CACHE_REFERENCES
] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
350 [PERF_COUNT_HW_CACHE_MISSES
] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
351 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS
] = ARMV7_PERFCTR_PC_WRITE
,
352 [PERF_COUNT_HW_BRANCH_MISSES
] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
353 [PERF_COUNT_HW_BUS_CYCLES
] = ARMV7_PERFCTR_BUS_CYCLES
,
356 static const unsigned armv7_a7_perf_cache_map
[PERF_COUNT_HW_CACHE_MAX
]
357 [PERF_COUNT_HW_CACHE_OP_MAX
]
358 [PERF_COUNT_HW_CACHE_RESULT_MAX
] = {
359 PERF_CACHE_MAP_ALL_UNSUPPORTED
,
362 * The performance counters don't differentiate between read and write
363 * accesses/misses so this isn't strictly correct, but it's the best we
364 * can do. Writes and reads get combined.
366 [C(L1D
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
367 [C(L1D
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
368 [C(L1D
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
369 [C(L1D
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
371 [C(L1I
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_ICACHE_ACCESS
,
372 [C(L1I
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_ICACHE_REFILL
,
374 [C(LL
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L2_CACHE_ACCESS
,
375 [C(LL
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L2_CACHE_REFILL
,
376 [C(LL
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L2_CACHE_ACCESS
,
377 [C(LL
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L2_CACHE_REFILL
,
379 [C(DTLB
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_DTLB_REFILL
,
380 [C(DTLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_DTLB_REFILL
,
382 [C(ITLB
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_ITLB_REFILL
,
383 [C(ITLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_ITLB_REFILL
,
385 [C(BPU
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
386 [C(BPU
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
387 [C(BPU
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
388 [C(BPU
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
392 * Cortex-A12 HW events mapping
394 static const unsigned armv7_a12_perf_map
[PERF_COUNT_HW_MAX
] = {
395 PERF_MAP_ALL_UNSUPPORTED
,
396 [PERF_COUNT_HW_CPU_CYCLES
] = ARMV7_PERFCTR_CPU_CYCLES
,
397 [PERF_COUNT_HW_INSTRUCTIONS
] = ARMV7_PERFCTR_INSTR_EXECUTED
,
398 [PERF_COUNT_HW_CACHE_REFERENCES
] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
399 [PERF_COUNT_HW_CACHE_MISSES
] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
400 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS
] = ARMV7_A12_PERFCTR_PC_WRITE_SPEC
,
401 [PERF_COUNT_HW_BRANCH_MISSES
] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
402 [PERF_COUNT_HW_BUS_CYCLES
] = ARMV7_PERFCTR_BUS_CYCLES
,
405 static const unsigned armv7_a12_perf_cache_map
[PERF_COUNT_HW_CACHE_MAX
]
406 [PERF_COUNT_HW_CACHE_OP_MAX
]
407 [PERF_COUNT_HW_CACHE_RESULT_MAX
] = {
408 PERF_CACHE_MAP_ALL_UNSUPPORTED
,
410 [C(L1D
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_A12_PERFCTR_L1_DCACHE_ACCESS_READ
,
411 [C(L1D
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
412 [C(L1D
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_A12_PERFCTR_L1_DCACHE_ACCESS_WRITE
,
413 [C(L1D
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
416 * Not all performance counters differentiate between read and write
417 * accesses/misses so we're not always strictly correct, but it's the
418 * best we can do. Writes and reads get combined in these cases.
420 [C(L1I
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_ICACHE_ACCESS
,
421 [C(L1I
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_ICACHE_REFILL
,
423 [C(LL
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_A12_PERFCTR_L2_CACHE_ACCESS_READ
,
424 [C(LL
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L2_CACHE_REFILL
,
425 [C(LL
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_A12_PERFCTR_L2_CACHE_ACCESS_WRITE
,
426 [C(LL
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L2_CACHE_REFILL
,
428 [C(DTLB
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_DTLB_REFILL
,
429 [C(DTLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_DTLB_REFILL
,
430 [C(DTLB
)][C(OP_PREFETCH
)][C(RESULT_MISS
)] = ARMV7_A12_PERFCTR_PF_TLB_REFILL
,
432 [C(ITLB
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_ITLB_REFILL
,
433 [C(ITLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_ITLB_REFILL
,
435 [C(BPU
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
436 [C(BPU
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
437 [C(BPU
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
438 [C(BPU
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
442 * Krait HW events mapping
444 static const unsigned krait_perf_map
[PERF_COUNT_HW_MAX
] = {
445 PERF_MAP_ALL_UNSUPPORTED
,
446 [PERF_COUNT_HW_CPU_CYCLES
] = ARMV7_PERFCTR_CPU_CYCLES
,
447 [PERF_COUNT_HW_INSTRUCTIONS
] = ARMV7_PERFCTR_INSTR_EXECUTED
,
448 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS
] = ARMV7_PERFCTR_PC_WRITE
,
449 [PERF_COUNT_HW_BRANCH_MISSES
] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
450 [PERF_COUNT_HW_BUS_CYCLES
] = ARMV7_PERFCTR_CLOCK_CYCLES
,
453 static const unsigned krait_perf_map_no_branch
[PERF_COUNT_HW_MAX
] = {
454 PERF_MAP_ALL_UNSUPPORTED
,
455 [PERF_COUNT_HW_CPU_CYCLES
] = ARMV7_PERFCTR_CPU_CYCLES
,
456 [PERF_COUNT_HW_INSTRUCTIONS
] = ARMV7_PERFCTR_INSTR_EXECUTED
,
457 [PERF_COUNT_HW_BRANCH_MISSES
] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
458 [PERF_COUNT_HW_BUS_CYCLES
] = ARMV7_PERFCTR_CLOCK_CYCLES
,
461 static const unsigned krait_perf_cache_map
[PERF_COUNT_HW_CACHE_MAX
]
462 [PERF_COUNT_HW_CACHE_OP_MAX
]
463 [PERF_COUNT_HW_CACHE_RESULT_MAX
] = {
464 PERF_CACHE_MAP_ALL_UNSUPPORTED
,
467 * The performance counters don't differentiate between read and write
468 * accesses/misses so this isn't strictly correct, but it's the best we
469 * can do. Writes and reads get combined.
471 [C(L1D
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
472 [C(L1D
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
473 [C(L1D
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
474 [C(L1D
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
476 [C(L1I
)][C(OP_READ
)][C(RESULT_ACCESS
)] = KRAIT_PERFCTR_L1_ICACHE_ACCESS
,
477 [C(L1I
)][C(OP_READ
)][C(RESULT_MISS
)] = KRAIT_PERFCTR_L1_ICACHE_MISS
,
479 [C(DTLB
)][C(OP_READ
)][C(RESULT_ACCESS
)] = KRAIT_PERFCTR_L1_DTLB_ACCESS
,
480 [C(DTLB
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = KRAIT_PERFCTR_L1_DTLB_ACCESS
,
482 [C(ITLB
)][C(OP_READ
)][C(RESULT_ACCESS
)] = KRAIT_PERFCTR_L1_ITLB_ACCESS
,
483 [C(ITLB
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = KRAIT_PERFCTR_L1_ITLB_ACCESS
,
485 [C(BPU
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
486 [C(BPU
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
487 [C(BPU
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
488 [C(BPU
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
492 * Scorpion HW events mapping
494 static const unsigned scorpion_perf_map
[PERF_COUNT_HW_MAX
] = {
495 PERF_MAP_ALL_UNSUPPORTED
,
496 [PERF_COUNT_HW_CPU_CYCLES
] = ARMV7_PERFCTR_CPU_CYCLES
,
497 [PERF_COUNT_HW_INSTRUCTIONS
] = ARMV7_PERFCTR_INSTR_EXECUTED
,
498 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS
] = ARMV7_PERFCTR_PC_WRITE
,
499 [PERF_COUNT_HW_BRANCH_MISSES
] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
500 [PERF_COUNT_HW_BUS_CYCLES
] = ARMV7_PERFCTR_CLOCK_CYCLES
,
503 static const unsigned scorpion_perf_cache_map
[PERF_COUNT_HW_CACHE_MAX
]
504 [PERF_COUNT_HW_CACHE_OP_MAX
]
505 [PERF_COUNT_HW_CACHE_RESULT_MAX
] = {
506 PERF_CACHE_MAP_ALL_UNSUPPORTED
,
508 * The performance counters don't differentiate between read and write
509 * accesses/misses so this isn't strictly correct, but it's the best we
510 * can do. Writes and reads get combined.
512 [C(L1D
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
513 [C(L1D
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
514 [C(L1D
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_L1_DCACHE_ACCESS
,
515 [C(L1D
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_L1_DCACHE_REFILL
,
516 [C(L1I
)][C(OP_READ
)][C(RESULT_ACCESS
)] = SCORPION_ICACHE_ACCESS
,
517 [C(L1I
)][C(OP_READ
)][C(RESULT_MISS
)] = SCORPION_ICACHE_MISS
,
519 * Only ITLB misses and DTLB refills are supported. If users want the
520 * DTLB refills misses a raw counter must be used.
522 [C(DTLB
)][C(OP_READ
)][C(RESULT_ACCESS
)] = SCORPION_DTLB_ACCESS
,
523 [C(DTLB
)][C(OP_READ
)][C(RESULT_MISS
)] = SCORPION_DTLB_MISS
,
524 [C(DTLB
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = SCORPION_DTLB_ACCESS
,
525 [C(DTLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = SCORPION_DTLB_MISS
,
526 [C(ITLB
)][C(OP_READ
)][C(RESULT_MISS
)] = SCORPION_ITLB_MISS
,
527 [C(ITLB
)][C(OP_WRITE
)][C(RESULT_MISS
)] = SCORPION_ITLB_MISS
,
528 [C(BPU
)][C(OP_READ
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
529 [C(BPU
)][C(OP_READ
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
530 [C(BPU
)][C(OP_WRITE
)][C(RESULT_ACCESS
)] = ARMV7_PERFCTR_PC_BRANCH_PRED
,
531 [C(BPU
)][C(OP_WRITE
)][C(RESULT_MISS
)] = ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
,
534 PMU_FORMAT_ATTR(event
, "config:0-7");
536 static struct attribute
*armv7_pmu_format_attrs
[] = {
537 &format_attr_event
.attr
,
541 static struct attribute_group armv7_pmu_format_attr_group
= {
543 .attrs
= armv7_pmu_format_attrs
,
546 #define ARMV7_EVENT_ATTR_RESOLVE(m) #m
547 #define ARMV7_EVENT_ATTR(name, config) \
548 PMU_EVENT_ATTR_STRING(name, armv7_event_attr_##name, \
549 "event=" ARMV7_EVENT_ATTR_RESOLVE(config))
551 ARMV7_EVENT_ATTR(sw_incr
, ARMV7_PERFCTR_PMNC_SW_INCR
);
552 ARMV7_EVENT_ATTR(l1i_cache_refill
, ARMV7_PERFCTR_L1_ICACHE_REFILL
);
553 ARMV7_EVENT_ATTR(l1i_tlb_refill
, ARMV7_PERFCTR_ITLB_REFILL
);
554 ARMV7_EVENT_ATTR(l1d_cache_refill
, ARMV7_PERFCTR_L1_DCACHE_REFILL
);
555 ARMV7_EVENT_ATTR(l1d_cache
, ARMV7_PERFCTR_L1_DCACHE_ACCESS
);
556 ARMV7_EVENT_ATTR(l1d_tlb_refill
, ARMV7_PERFCTR_DTLB_REFILL
);
557 ARMV7_EVENT_ATTR(ld_retired
, ARMV7_PERFCTR_MEM_READ
);
558 ARMV7_EVENT_ATTR(st_retired
, ARMV7_PERFCTR_MEM_WRITE
);
559 ARMV7_EVENT_ATTR(inst_retired
, ARMV7_PERFCTR_INSTR_EXECUTED
);
560 ARMV7_EVENT_ATTR(exc_taken
, ARMV7_PERFCTR_EXC_TAKEN
);
561 ARMV7_EVENT_ATTR(exc_return
, ARMV7_PERFCTR_EXC_EXECUTED
);
562 ARMV7_EVENT_ATTR(cid_write_retired
, ARMV7_PERFCTR_CID_WRITE
);
563 ARMV7_EVENT_ATTR(pc_write_retired
, ARMV7_PERFCTR_PC_WRITE
);
564 ARMV7_EVENT_ATTR(br_immed_retired
, ARMV7_PERFCTR_PC_IMM_BRANCH
);
565 ARMV7_EVENT_ATTR(br_return_retired
, ARMV7_PERFCTR_PC_PROC_RETURN
);
566 ARMV7_EVENT_ATTR(unaligned_ldst_retired
, ARMV7_PERFCTR_MEM_UNALIGNED_ACCESS
);
567 ARMV7_EVENT_ATTR(br_mis_pred
, ARMV7_PERFCTR_PC_BRANCH_MIS_PRED
);
568 ARMV7_EVENT_ATTR(cpu_cycles
, ARMV7_PERFCTR_CLOCK_CYCLES
);
569 ARMV7_EVENT_ATTR(br_pred
, ARMV7_PERFCTR_PC_BRANCH_PRED
);
571 static struct attribute
*armv7_pmuv1_event_attrs
[] = {
572 &armv7_event_attr_sw_incr
.attr
.attr
,
573 &armv7_event_attr_l1i_cache_refill
.attr
.attr
,
574 &armv7_event_attr_l1i_tlb_refill
.attr
.attr
,
575 &armv7_event_attr_l1d_cache_refill
.attr
.attr
,
576 &armv7_event_attr_l1d_cache
.attr
.attr
,
577 &armv7_event_attr_l1d_tlb_refill
.attr
.attr
,
578 &armv7_event_attr_ld_retired
.attr
.attr
,
579 &armv7_event_attr_st_retired
.attr
.attr
,
580 &armv7_event_attr_inst_retired
.attr
.attr
,
581 &armv7_event_attr_exc_taken
.attr
.attr
,
582 &armv7_event_attr_exc_return
.attr
.attr
,
583 &armv7_event_attr_cid_write_retired
.attr
.attr
,
584 &armv7_event_attr_pc_write_retired
.attr
.attr
,
585 &armv7_event_attr_br_immed_retired
.attr
.attr
,
586 &armv7_event_attr_br_return_retired
.attr
.attr
,
587 &armv7_event_attr_unaligned_ldst_retired
.attr
.attr
,
588 &armv7_event_attr_br_mis_pred
.attr
.attr
,
589 &armv7_event_attr_cpu_cycles
.attr
.attr
,
590 &armv7_event_attr_br_pred
.attr
.attr
,
594 static struct attribute_group armv7_pmuv1_events_attr_group
= {
596 .attrs
= armv7_pmuv1_event_attrs
,
599 static const struct attribute_group
*armv7_pmuv1_attr_groups
[] = {
600 &armv7_pmuv1_events_attr_group
,
601 &armv7_pmu_format_attr_group
,
605 ARMV7_EVENT_ATTR(mem_access
, ARMV7_PERFCTR_MEM_ACCESS
);
606 ARMV7_EVENT_ATTR(l1i_cache
, ARMV7_PERFCTR_L1_ICACHE_ACCESS
);
607 ARMV7_EVENT_ATTR(l1d_cache_wb
, ARMV7_PERFCTR_L1_DCACHE_WB
);
608 ARMV7_EVENT_ATTR(l2d_cache
, ARMV7_PERFCTR_L2_CACHE_ACCESS
);
609 ARMV7_EVENT_ATTR(l2d_cache_refill
, ARMV7_PERFCTR_L2_CACHE_REFILL
);
610 ARMV7_EVENT_ATTR(l2d_cache_wb
, ARMV7_PERFCTR_L2_CACHE_WB
);
611 ARMV7_EVENT_ATTR(bus_access
, ARMV7_PERFCTR_BUS_ACCESS
);
612 ARMV7_EVENT_ATTR(memory_error
, ARMV7_PERFCTR_MEM_ERROR
);
613 ARMV7_EVENT_ATTR(inst_spec
, ARMV7_PERFCTR_INSTR_SPEC
);
614 ARMV7_EVENT_ATTR(ttbr_write_retired
, ARMV7_PERFCTR_TTBR_WRITE
);
615 ARMV7_EVENT_ATTR(bus_cycles
, ARMV7_PERFCTR_BUS_CYCLES
);
617 static struct attribute
*armv7_pmuv2_event_attrs
[] = {
618 &armv7_event_attr_sw_incr
.attr
.attr
,
619 &armv7_event_attr_l1i_cache_refill
.attr
.attr
,
620 &armv7_event_attr_l1i_tlb_refill
.attr
.attr
,
621 &armv7_event_attr_l1d_cache_refill
.attr
.attr
,
622 &armv7_event_attr_l1d_cache
.attr
.attr
,
623 &armv7_event_attr_l1d_tlb_refill
.attr
.attr
,
624 &armv7_event_attr_ld_retired
.attr
.attr
,
625 &armv7_event_attr_st_retired
.attr
.attr
,
626 &armv7_event_attr_inst_retired
.attr
.attr
,
627 &armv7_event_attr_exc_taken
.attr
.attr
,
628 &armv7_event_attr_exc_return
.attr
.attr
,
629 &armv7_event_attr_cid_write_retired
.attr
.attr
,
630 &armv7_event_attr_pc_write_retired
.attr
.attr
,
631 &armv7_event_attr_br_immed_retired
.attr
.attr
,
632 &armv7_event_attr_br_return_retired
.attr
.attr
,
633 &armv7_event_attr_unaligned_ldst_retired
.attr
.attr
,
634 &armv7_event_attr_br_mis_pred
.attr
.attr
,
635 &armv7_event_attr_cpu_cycles
.attr
.attr
,
636 &armv7_event_attr_br_pred
.attr
.attr
,
637 &armv7_event_attr_mem_access
.attr
.attr
,
638 &armv7_event_attr_l1i_cache
.attr
.attr
,
639 &armv7_event_attr_l1d_cache_wb
.attr
.attr
,
640 &armv7_event_attr_l2d_cache
.attr
.attr
,
641 &armv7_event_attr_l2d_cache_refill
.attr
.attr
,
642 &armv7_event_attr_l2d_cache_wb
.attr
.attr
,
643 &armv7_event_attr_bus_access
.attr
.attr
,
644 &armv7_event_attr_memory_error
.attr
.attr
,
645 &armv7_event_attr_inst_spec
.attr
.attr
,
646 &armv7_event_attr_ttbr_write_retired
.attr
.attr
,
647 &armv7_event_attr_bus_cycles
.attr
.attr
,
651 static struct attribute_group armv7_pmuv2_events_attr_group
= {
653 .attrs
= armv7_pmuv2_event_attrs
,
656 static const struct attribute_group
*armv7_pmuv2_attr_groups
[] = {
657 &armv7_pmuv2_events_attr_group
,
658 &armv7_pmu_format_attr_group
,
663 * Perf Events' indices
665 #define ARMV7_IDX_CYCLE_COUNTER 0
666 #define ARMV7_IDX_COUNTER0 1
667 #define ARMV7_IDX_COUNTER_LAST(cpu_pmu) \
668 (ARMV7_IDX_CYCLE_COUNTER + cpu_pmu->num_events - 1)
670 #define ARMV7_MAX_COUNTERS 32
671 #define ARMV7_COUNTER_MASK (ARMV7_MAX_COUNTERS - 1)
674 * ARMv7 low level PMNC access
678 * Perf Event to low level counters mapping
680 #define ARMV7_IDX_TO_COUNTER(x) \
681 (((x) - ARMV7_IDX_COUNTER0) & ARMV7_COUNTER_MASK)
684 * Per-CPU PMNC: config reg
686 #define ARMV7_PMNC_E (1 << 0) /* Enable all counters */
687 #define ARMV7_PMNC_P (1 << 1) /* Reset all counters */
688 #define ARMV7_PMNC_C (1 << 2) /* Cycle counter reset */
689 #define ARMV7_PMNC_D (1 << 3) /* CCNT counts every 64th cpu cycle */
690 #define ARMV7_PMNC_X (1 << 4) /* Export to ETM */
691 #define ARMV7_PMNC_DP (1 << 5) /* Disable CCNT if non-invasive debug*/
692 #define ARMV7_PMNC_N_SHIFT 11 /* Number of counters supported */
693 #define ARMV7_PMNC_N_MASK 0x1f
694 #define ARMV7_PMNC_MASK 0x3f /* Mask for writable bits */
697 * FLAG: counters overflow flag status reg
699 #define ARMV7_FLAG_MASK 0xffffffff /* Mask for writable bits */
700 #define ARMV7_OVERFLOWED_MASK ARMV7_FLAG_MASK
703 * PMXEVTYPER: Event selection reg
705 #define ARMV7_EVTYPE_MASK 0xc80000ff /* Mask for writable bits */
706 #define ARMV7_EVTYPE_EVENT 0xff /* Mask for EVENT bits */
709 * Event filters for PMUv2
711 #define ARMV7_EXCLUDE_PL1 (1 << 31)
712 #define ARMV7_EXCLUDE_USER (1 << 30)
713 #define ARMV7_INCLUDE_HYP (1 << 27)
715 static inline u32
armv7_pmnc_read(void)
718 asm volatile("mrc p15, 0, %0, c9, c12, 0" : "=r"(val
));
722 static inline void armv7_pmnc_write(u32 val
)
724 val
&= ARMV7_PMNC_MASK
;
726 asm volatile("mcr p15, 0, %0, c9, c12, 0" : : "r"(val
));
729 static inline int armv7_pmnc_has_overflowed(u32 pmnc
)
731 return pmnc
& ARMV7_OVERFLOWED_MASK
;
734 static inline int armv7_pmnc_counter_valid(struct arm_pmu
*cpu_pmu
, int idx
)
736 return idx
>= ARMV7_IDX_CYCLE_COUNTER
&&
737 idx
<= ARMV7_IDX_COUNTER_LAST(cpu_pmu
);
740 static inline int armv7_pmnc_counter_has_overflowed(u32 pmnc
, int idx
)
742 return pmnc
& BIT(ARMV7_IDX_TO_COUNTER(idx
));
745 static inline void armv7_pmnc_select_counter(int idx
)
747 u32 counter
= ARMV7_IDX_TO_COUNTER(idx
);
748 asm volatile("mcr p15, 0, %0, c9, c12, 5" : : "r" (counter
));
752 static inline u32
armv7pmu_read_counter(struct perf_event
*event
)
754 struct arm_pmu
*cpu_pmu
= to_arm_pmu(event
->pmu
);
755 struct hw_perf_event
*hwc
= &event
->hw
;
759 if (!armv7_pmnc_counter_valid(cpu_pmu
, idx
)) {
760 pr_err("CPU%u reading wrong counter %d\n",
761 smp_processor_id(), idx
);
762 } else if (idx
== ARMV7_IDX_CYCLE_COUNTER
) {
763 asm volatile("mrc p15, 0, %0, c9, c13, 0" : "=r" (value
));
765 armv7_pmnc_select_counter(idx
);
766 asm volatile("mrc p15, 0, %0, c9, c13, 2" : "=r" (value
));
772 static inline void armv7pmu_write_counter(struct perf_event
*event
, u32 value
)
774 struct arm_pmu
*cpu_pmu
= to_arm_pmu(event
->pmu
);
775 struct hw_perf_event
*hwc
= &event
->hw
;
778 if (!armv7_pmnc_counter_valid(cpu_pmu
, idx
)) {
779 pr_err("CPU%u writing wrong counter %d\n",
780 smp_processor_id(), idx
);
781 } else if (idx
== ARMV7_IDX_CYCLE_COUNTER
) {
782 asm volatile("mcr p15, 0, %0, c9, c13, 0" : : "r" (value
));
784 armv7_pmnc_select_counter(idx
);
785 asm volatile("mcr p15, 0, %0, c9, c13, 2" : : "r" (value
));
789 static inline void armv7_pmnc_write_evtsel(int idx
, u32 val
)
791 armv7_pmnc_select_counter(idx
);
792 val
&= ARMV7_EVTYPE_MASK
;
793 asm volatile("mcr p15, 0, %0, c9, c13, 1" : : "r" (val
));
796 static inline void armv7_pmnc_enable_counter(int idx
)
798 u32 counter
= ARMV7_IDX_TO_COUNTER(idx
);
799 asm volatile("mcr p15, 0, %0, c9, c12, 1" : : "r" (BIT(counter
)));
802 static inline void armv7_pmnc_disable_counter(int idx
)
804 u32 counter
= ARMV7_IDX_TO_COUNTER(idx
);
805 asm volatile("mcr p15, 0, %0, c9, c12, 2" : : "r" (BIT(counter
)));
808 static inline void armv7_pmnc_enable_intens(int idx
)
810 u32 counter
= ARMV7_IDX_TO_COUNTER(idx
);
811 asm volatile("mcr p15, 0, %0, c9, c14, 1" : : "r" (BIT(counter
)));
814 static inline void armv7_pmnc_disable_intens(int idx
)
816 u32 counter
= ARMV7_IDX_TO_COUNTER(idx
);
817 asm volatile("mcr p15, 0, %0, c9, c14, 2" : : "r" (BIT(counter
)));
819 /* Clear the overflow flag in case an interrupt is pending. */
820 asm volatile("mcr p15, 0, %0, c9, c12, 3" : : "r" (BIT(counter
)));
824 static inline u32
armv7_pmnc_getreset_flags(void)
829 asm volatile("mrc p15, 0, %0, c9, c12, 3" : "=r" (val
));
831 /* Write to clear flags */
832 val
&= ARMV7_FLAG_MASK
;
833 asm volatile("mcr p15, 0, %0, c9, c12, 3" : : "r" (val
));
839 static void armv7_pmnc_dump_regs(struct arm_pmu
*cpu_pmu
)
844 pr_info("PMNC registers dump:\n");
846 asm volatile("mrc p15, 0, %0, c9, c12, 0" : "=r" (val
));
847 pr_info("PMNC =0x%08x\n", val
);
849 asm volatile("mrc p15, 0, %0, c9, c12, 1" : "=r" (val
));
850 pr_info("CNTENS=0x%08x\n", val
);
852 asm volatile("mrc p15, 0, %0, c9, c14, 1" : "=r" (val
));
853 pr_info("INTENS=0x%08x\n", val
);
855 asm volatile("mrc p15, 0, %0, c9, c12, 3" : "=r" (val
));
856 pr_info("FLAGS =0x%08x\n", val
);
858 asm volatile("mrc p15, 0, %0, c9, c12, 5" : "=r" (val
));
859 pr_info("SELECT=0x%08x\n", val
);
861 asm volatile("mrc p15, 0, %0, c9, c13, 0" : "=r" (val
));
862 pr_info("CCNT =0x%08x\n", val
);
864 for (cnt
= ARMV7_IDX_COUNTER0
;
865 cnt
<= ARMV7_IDX_COUNTER_LAST(cpu_pmu
); cnt
++) {
866 armv7_pmnc_select_counter(cnt
);
867 asm volatile("mrc p15, 0, %0, c9, c13, 2" : "=r" (val
));
868 pr_info("CNT[%d] count =0x%08x\n",
869 ARMV7_IDX_TO_COUNTER(cnt
), val
);
870 asm volatile("mrc p15, 0, %0, c9, c13, 1" : "=r" (val
));
871 pr_info("CNT[%d] evtsel=0x%08x\n",
872 ARMV7_IDX_TO_COUNTER(cnt
), val
);
877 static void armv7pmu_enable_event(struct perf_event
*event
)
880 struct hw_perf_event
*hwc
= &event
->hw
;
881 struct arm_pmu
*cpu_pmu
= to_arm_pmu(event
->pmu
);
882 struct pmu_hw_events
*events
= this_cpu_ptr(cpu_pmu
->hw_events
);
885 if (!armv7_pmnc_counter_valid(cpu_pmu
, idx
)) {
886 pr_err("CPU%u enabling wrong PMNC counter IRQ enable %d\n",
887 smp_processor_id(), idx
);
892 * Enable counter and interrupt, and set the counter to count
893 * the event that we're interested in.
895 raw_spin_lock_irqsave(&events
->pmu_lock
, flags
);
900 armv7_pmnc_disable_counter(idx
);
903 * Set event (if destined for PMNx counters)
904 * We only need to set the event for the cycle counter if we
905 * have the ability to perform event filtering.
907 if (cpu_pmu
->set_event_filter
|| idx
!= ARMV7_IDX_CYCLE_COUNTER
)
908 armv7_pmnc_write_evtsel(idx
, hwc
->config_base
);
911 * Enable interrupt for this counter
913 armv7_pmnc_enable_intens(idx
);
918 armv7_pmnc_enable_counter(idx
);
920 raw_spin_unlock_irqrestore(&events
->pmu_lock
, flags
);
923 static void armv7pmu_disable_event(struct perf_event
*event
)
926 struct hw_perf_event
*hwc
= &event
->hw
;
927 struct arm_pmu
*cpu_pmu
= to_arm_pmu(event
->pmu
);
928 struct pmu_hw_events
*events
= this_cpu_ptr(cpu_pmu
->hw_events
);
931 if (!armv7_pmnc_counter_valid(cpu_pmu
, idx
)) {
932 pr_err("CPU%u disabling wrong PMNC counter IRQ enable %d\n",
933 smp_processor_id(), idx
);
938 * Disable counter and interrupt
940 raw_spin_lock_irqsave(&events
->pmu_lock
, flags
);
945 armv7_pmnc_disable_counter(idx
);
948 * Disable interrupt for this counter
950 armv7_pmnc_disable_intens(idx
);
952 raw_spin_unlock_irqrestore(&events
->pmu_lock
, flags
);
955 static irqreturn_t
armv7pmu_handle_irq(int irq_num
, void *dev
)
958 struct perf_sample_data data
;
959 struct arm_pmu
*cpu_pmu
= (struct arm_pmu
*)dev
;
960 struct pmu_hw_events
*cpuc
= this_cpu_ptr(cpu_pmu
->hw_events
);
961 struct pt_regs
*regs
;
965 * Get and reset the IRQ flags
967 pmnc
= armv7_pmnc_getreset_flags();
970 * Did an overflow occur?
972 if (!armv7_pmnc_has_overflowed(pmnc
))
976 * Handle the counter(s) overflow(s)
978 regs
= get_irq_regs();
980 for (idx
= 0; idx
< cpu_pmu
->num_events
; ++idx
) {
981 struct perf_event
*event
= cpuc
->events
[idx
];
982 struct hw_perf_event
*hwc
;
984 /* Ignore if we don't have an event. */
989 * We have a single interrupt for all counters. Check that
990 * each counter has overflowed before we process it.
992 if (!armv7_pmnc_counter_has_overflowed(pmnc
, idx
))
996 armpmu_event_update(event
);
997 perf_sample_data_init(&data
, 0, hwc
->last_period
);
998 if (!armpmu_event_set_period(event
))
1001 if (perf_event_overflow(event
, &data
, regs
))
1002 cpu_pmu
->disable(event
);
1006 * Handle the pending perf events.
1008 * Note: this call *must* be run with interrupts disabled. For
1009 * platforms that can have the PMU interrupts raised as an NMI, this
1017 static void armv7pmu_start(struct arm_pmu
*cpu_pmu
)
1019 unsigned long flags
;
1020 struct pmu_hw_events
*events
= this_cpu_ptr(cpu_pmu
->hw_events
);
1022 raw_spin_lock_irqsave(&events
->pmu_lock
, flags
);
1023 /* Enable all counters */
1024 armv7_pmnc_write(armv7_pmnc_read() | ARMV7_PMNC_E
);
1025 raw_spin_unlock_irqrestore(&events
->pmu_lock
, flags
);
1028 static void armv7pmu_stop(struct arm_pmu
*cpu_pmu
)
1030 unsigned long flags
;
1031 struct pmu_hw_events
*events
= this_cpu_ptr(cpu_pmu
->hw_events
);
1033 raw_spin_lock_irqsave(&events
->pmu_lock
, flags
);
1034 /* Disable all counters */
1035 armv7_pmnc_write(armv7_pmnc_read() & ~ARMV7_PMNC_E
);
1036 raw_spin_unlock_irqrestore(&events
->pmu_lock
, flags
);
1039 static int armv7pmu_get_event_idx(struct pmu_hw_events
*cpuc
,
1040 struct perf_event
*event
)
1043 struct arm_pmu
*cpu_pmu
= to_arm_pmu(event
->pmu
);
1044 struct hw_perf_event
*hwc
= &event
->hw
;
1045 unsigned long evtype
= hwc
->config_base
& ARMV7_EVTYPE_EVENT
;
1047 /* Always place a cycle counter into the cycle counter. */
1048 if (evtype
== ARMV7_PERFCTR_CPU_CYCLES
) {
1049 if (test_and_set_bit(ARMV7_IDX_CYCLE_COUNTER
, cpuc
->used_mask
))
1052 return ARMV7_IDX_CYCLE_COUNTER
;
1056 * For anything other than a cycle counter, try and use
1057 * the events counters
1059 for (idx
= ARMV7_IDX_COUNTER0
; idx
< cpu_pmu
->num_events
; ++idx
) {
1060 if (!test_and_set_bit(idx
, cpuc
->used_mask
))
1064 /* The counters are all in use. */
1069 * Add an event filter to a given event. This will only work for PMUv2 PMUs.
1071 static int armv7pmu_set_event_filter(struct hw_perf_event
*event
,
1072 struct perf_event_attr
*attr
)
1074 unsigned long config_base
= 0;
1076 if (attr
->exclude_idle
)
1078 if (attr
->exclude_user
)
1079 config_base
|= ARMV7_EXCLUDE_USER
;
1080 if (attr
->exclude_kernel
)
1081 config_base
|= ARMV7_EXCLUDE_PL1
;
1082 if (!attr
->exclude_hv
)
1083 config_base
|= ARMV7_INCLUDE_HYP
;
1086 * Install the filter into config_base as this is used to
1087 * construct the event type.
1089 event
->config_base
= config_base
;
1094 static void armv7pmu_reset(void *info
)
1096 struct arm_pmu
*cpu_pmu
= (struct arm_pmu
*)info
;
1097 u32 idx
, nb_cnt
= cpu_pmu
->num_events
;
1099 /* The counter and interrupt enable registers are unknown at reset. */
1100 for (idx
= ARMV7_IDX_CYCLE_COUNTER
; idx
< nb_cnt
; ++idx
) {
1101 armv7_pmnc_disable_counter(idx
);
1102 armv7_pmnc_disable_intens(idx
);
1105 /* Initialize & Reset PMNC: C and P bits */
1106 armv7_pmnc_write(ARMV7_PMNC_P
| ARMV7_PMNC_C
);
1109 static int armv7_a8_map_event(struct perf_event
*event
)
1111 return armpmu_map_event(event
, &armv7_a8_perf_map
,
1112 &armv7_a8_perf_cache_map
, 0xFF);
1115 static int armv7_a9_map_event(struct perf_event
*event
)
1117 return armpmu_map_event(event
, &armv7_a9_perf_map
,
1118 &armv7_a9_perf_cache_map
, 0xFF);
1121 static int armv7_a5_map_event(struct perf_event
*event
)
1123 return armpmu_map_event(event
, &armv7_a5_perf_map
,
1124 &armv7_a5_perf_cache_map
, 0xFF);
1127 static int armv7_a15_map_event(struct perf_event
*event
)
1129 return armpmu_map_event(event
, &armv7_a15_perf_map
,
1130 &armv7_a15_perf_cache_map
, 0xFF);
1133 static int armv7_a7_map_event(struct perf_event
*event
)
1135 return armpmu_map_event(event
, &armv7_a7_perf_map
,
1136 &armv7_a7_perf_cache_map
, 0xFF);
1139 static int armv7_a12_map_event(struct perf_event
*event
)
1141 return armpmu_map_event(event
, &armv7_a12_perf_map
,
1142 &armv7_a12_perf_cache_map
, 0xFF);
1145 static int krait_map_event(struct perf_event
*event
)
1147 return armpmu_map_event(event
, &krait_perf_map
,
1148 &krait_perf_cache_map
, 0xFFFFF);
1151 static int krait_map_event_no_branch(struct perf_event
*event
)
1153 return armpmu_map_event(event
, &krait_perf_map_no_branch
,
1154 &krait_perf_cache_map
, 0xFFFFF);
1157 static int scorpion_map_event(struct perf_event
*event
)
1159 return armpmu_map_event(event
, &scorpion_perf_map
,
1160 &scorpion_perf_cache_map
, 0xFFFFF);
1163 static void armv7pmu_init(struct arm_pmu
*cpu_pmu
)
1165 cpu_pmu
->handle_irq
= armv7pmu_handle_irq
;
1166 cpu_pmu
->enable
= armv7pmu_enable_event
;
1167 cpu_pmu
->disable
= armv7pmu_disable_event
;
1168 cpu_pmu
->read_counter
= armv7pmu_read_counter
;
1169 cpu_pmu
->write_counter
= armv7pmu_write_counter
;
1170 cpu_pmu
->get_event_idx
= armv7pmu_get_event_idx
;
1171 cpu_pmu
->start
= armv7pmu_start
;
1172 cpu_pmu
->stop
= armv7pmu_stop
;
1173 cpu_pmu
->reset
= armv7pmu_reset
;
1174 cpu_pmu
->max_period
= (1LLU << 32) - 1;
1177 static void armv7_read_num_pmnc_events(void *info
)
1181 /* Read the nb of CNTx counters supported from PMNC */
1182 *nb_cnt
= (armv7_pmnc_read() >> ARMV7_PMNC_N_SHIFT
) & ARMV7_PMNC_N_MASK
;
1184 /* Add the CPU cycles counter */
1188 static int armv7_probe_num_events(struct arm_pmu
*arm_pmu
)
1190 return smp_call_function_any(&arm_pmu
->supported_cpus
,
1191 armv7_read_num_pmnc_events
,
1192 &arm_pmu
->num_events
, 1);
1195 static int armv7_a8_pmu_init(struct arm_pmu
*cpu_pmu
)
1197 armv7pmu_init(cpu_pmu
);
1198 cpu_pmu
->name
= "armv7_cortex_a8";
1199 cpu_pmu
->map_event
= armv7_a8_map_event
;
1200 cpu_pmu
->pmu
.attr_groups
= armv7_pmuv1_attr_groups
;
1201 return armv7_probe_num_events(cpu_pmu
);
1204 static int armv7_a9_pmu_init(struct arm_pmu
*cpu_pmu
)
1206 armv7pmu_init(cpu_pmu
);
1207 cpu_pmu
->name
= "armv7_cortex_a9";
1208 cpu_pmu
->map_event
= armv7_a9_map_event
;
1209 cpu_pmu
->pmu
.attr_groups
= armv7_pmuv1_attr_groups
;
1210 return armv7_probe_num_events(cpu_pmu
);
1213 static int armv7_a5_pmu_init(struct arm_pmu
*cpu_pmu
)
1215 armv7pmu_init(cpu_pmu
);
1216 cpu_pmu
->name
= "armv7_cortex_a5";
1217 cpu_pmu
->map_event
= armv7_a5_map_event
;
1218 cpu_pmu
->pmu
.attr_groups
= armv7_pmuv1_attr_groups
;
1219 return armv7_probe_num_events(cpu_pmu
);
1222 static int armv7_a15_pmu_init(struct arm_pmu
*cpu_pmu
)
1224 armv7pmu_init(cpu_pmu
);
1225 cpu_pmu
->name
= "armv7_cortex_a15";
1226 cpu_pmu
->map_event
= armv7_a15_map_event
;
1227 cpu_pmu
->set_event_filter
= armv7pmu_set_event_filter
;
1228 cpu_pmu
->pmu
.attr_groups
= armv7_pmuv2_attr_groups
;
1229 return armv7_probe_num_events(cpu_pmu
);
1232 static int armv7_a7_pmu_init(struct arm_pmu
*cpu_pmu
)
1234 armv7pmu_init(cpu_pmu
);
1235 cpu_pmu
->name
= "armv7_cortex_a7";
1236 cpu_pmu
->map_event
= armv7_a7_map_event
;
1237 cpu_pmu
->set_event_filter
= armv7pmu_set_event_filter
;
1238 cpu_pmu
->pmu
.attr_groups
= armv7_pmuv2_attr_groups
;
1239 return armv7_probe_num_events(cpu_pmu
);
1242 static int armv7_a12_pmu_init(struct arm_pmu
*cpu_pmu
)
1244 armv7pmu_init(cpu_pmu
);
1245 cpu_pmu
->name
= "armv7_cortex_a12";
1246 cpu_pmu
->map_event
= armv7_a12_map_event
;
1247 cpu_pmu
->set_event_filter
= armv7pmu_set_event_filter
;
1248 cpu_pmu
->pmu
.attr_groups
= armv7_pmuv2_attr_groups
;
1249 return armv7_probe_num_events(cpu_pmu
);
1252 static int armv7_a17_pmu_init(struct arm_pmu
*cpu_pmu
)
1254 int ret
= armv7_a12_pmu_init(cpu_pmu
);
1255 cpu_pmu
->name
= "armv7_cortex_a17";
1256 cpu_pmu
->pmu
.attr_groups
= armv7_pmuv2_attr_groups
;
1261 * Krait Performance Monitor Region Event Selection Register (PMRESRn)
1264 * +--------------------------------+
1265 * PMRESR0 | EN | CC | CC | CC | CC | N = 1, R = 0
1266 * +--------------------------------+
1267 * PMRESR1 | EN | CC | CC | CC | CC | N = 1, R = 1
1268 * +--------------------------------+
1269 * PMRESR2 | EN | CC | CC | CC | CC | N = 1, R = 2
1270 * +--------------------------------+
1271 * VPMRESR0 | EN | CC | CC | CC | CC | N = 2, R = ?
1272 * +--------------------------------+
1273 * EN | G=3 | G=2 | G=1 | G=0
1277 * hwc->config_base = 0xNRCCG
1279 * N = prefix, 1 for Krait CPU (PMRESRn), 2 for Venum VFP (VPMRESR)
1280 * R = region register
1281 * CC = class of events the group G is choosing from
1282 * G = group or particular event
1284 * Example: 0x12021 is a Krait CPU event in PMRESR2's group 1 with code 2
1286 * A region (R) corresponds to a piece of the CPU (execution unit, instruction
1287 * unit, etc.) while the event code (CC) corresponds to a particular class of
1288 * events (interrupts for example). An event code is broken down into
1289 * groups (G) that can be mapped into the PMU (irq, fiqs, and irq+fiqs for
1293 #define KRAIT_EVENT (1 << 16)
1294 #define VENUM_EVENT (2 << 16)
1295 #define KRAIT_EVENT_MASK (KRAIT_EVENT | VENUM_EVENT)
1296 #define PMRESRn_EN BIT(31)
1298 #define EVENT_REGION(event) (((event) >> 12) & 0xf) /* R */
1299 #define EVENT_GROUP(event) ((event) & 0xf) /* G */
1300 #define EVENT_CODE(event) (((event) >> 4) & 0xff) /* CC */
1301 #define EVENT_VENUM(event) (!!(event & VENUM_EVENT)) /* N=2 */
1302 #define EVENT_CPU(event) (!!(event & KRAIT_EVENT)) /* N=1 */
1304 static u32
krait_read_pmresrn(int n
)
1310 asm volatile("mrc p15, 1, %0, c9, c15, 0" : "=r" (val
));
1313 asm volatile("mrc p15, 1, %0, c9, c15, 1" : "=r" (val
));
1316 asm volatile("mrc p15, 1, %0, c9, c15, 2" : "=r" (val
));
1319 BUG(); /* Should be validated in krait_pmu_get_event_idx() */
1325 static void krait_write_pmresrn(int n
, u32 val
)
1329 asm volatile("mcr p15, 1, %0, c9, c15, 0" : : "r" (val
));
1332 asm volatile("mcr p15, 1, %0, c9, c15, 1" : : "r" (val
));
1335 asm volatile("mcr p15, 1, %0, c9, c15, 2" : : "r" (val
));
1338 BUG(); /* Should be validated in krait_pmu_get_event_idx() */
1342 static u32
venum_read_pmresr(void)
1345 asm volatile("mrc p10, 7, %0, c11, c0, 0" : "=r" (val
));
1349 static void venum_write_pmresr(u32 val
)
1351 asm volatile("mcr p10, 7, %0, c11, c0, 0" : : "r" (val
));
1354 static void venum_pre_pmresr(u32
*venum_orig_val
, u32
*fp_orig_val
)
1359 BUG_ON(preemptible());
1360 /* CPACR Enable CP10 and CP11 access */
1361 *venum_orig_val
= get_copro_access();
1362 venum_new_val
= *venum_orig_val
| CPACC_SVC(10) | CPACC_SVC(11);
1363 set_copro_access(venum_new_val
);
1366 *fp_orig_val
= fmrx(FPEXC
);
1367 fp_new_val
= *fp_orig_val
| FPEXC_EN
;
1368 fmxr(FPEXC
, fp_new_val
);
1371 static void venum_post_pmresr(u32 venum_orig_val
, u32 fp_orig_val
)
1373 BUG_ON(preemptible());
1375 fmxr(FPEXC
, fp_orig_val
);
1378 set_copro_access(venum_orig_val
);
1381 static u32
krait_get_pmresrn_event(unsigned int region
)
1383 static const u32 pmresrn_table
[] = { KRAIT_PMRESR0_GROUP0
,
1384 KRAIT_PMRESR1_GROUP0
,
1385 KRAIT_PMRESR2_GROUP0
};
1386 return pmresrn_table
[region
];
1389 static void krait_evt_setup(int idx
, u32 config_base
)
1394 unsigned int region
= EVENT_REGION(config_base
);
1395 unsigned int group
= EVENT_GROUP(config_base
);
1396 unsigned int code
= EVENT_CODE(config_base
);
1397 unsigned int group_shift
;
1398 bool venum_event
= EVENT_VENUM(config_base
);
1400 group_shift
= group
* 8;
1401 mask
= 0xff << group_shift
;
1403 /* Configure evtsel for the region and group */
1405 val
= KRAIT_VPMRESR0_GROUP0
;
1407 val
= krait_get_pmresrn_event(region
);
1409 /* Mix in mode-exclusion bits */
1410 val
|= config_base
& (ARMV7_EXCLUDE_USER
| ARMV7_EXCLUDE_PL1
);
1411 armv7_pmnc_write_evtsel(idx
, val
);
1414 venum_pre_pmresr(&vval
, &fval
);
1415 val
= venum_read_pmresr();
1417 val
|= code
<< group_shift
;
1419 venum_write_pmresr(val
);
1420 venum_post_pmresr(vval
, fval
);
1422 val
= krait_read_pmresrn(region
);
1424 val
|= code
<< group_shift
;
1426 krait_write_pmresrn(region
, val
);
1430 static u32
clear_pmresrn_group(u32 val
, int group
)
1435 group_shift
= group
* 8;
1436 mask
= 0xff << group_shift
;
1439 /* Don't clear enable bit if entire region isn't disabled */
1440 if (val
& ~PMRESRn_EN
)
1441 return val
|= PMRESRn_EN
;
1446 static void krait_clearpmu(u32 config_base
)
1450 unsigned int region
= EVENT_REGION(config_base
);
1451 unsigned int group
= EVENT_GROUP(config_base
);
1452 bool venum_event
= EVENT_VENUM(config_base
);
1455 venum_pre_pmresr(&vval
, &fval
);
1456 val
= venum_read_pmresr();
1457 val
= clear_pmresrn_group(val
, group
);
1458 venum_write_pmresr(val
);
1459 venum_post_pmresr(vval
, fval
);
1461 val
= krait_read_pmresrn(region
);
1462 val
= clear_pmresrn_group(val
, group
);
1463 krait_write_pmresrn(region
, val
);
1467 static void krait_pmu_disable_event(struct perf_event
*event
)
1469 unsigned long flags
;
1470 struct hw_perf_event
*hwc
= &event
->hw
;
1472 struct arm_pmu
*cpu_pmu
= to_arm_pmu(event
->pmu
);
1473 struct pmu_hw_events
*events
= this_cpu_ptr(cpu_pmu
->hw_events
);
1475 /* Disable counter and interrupt */
1476 raw_spin_lock_irqsave(&events
->pmu_lock
, flags
);
1478 /* Disable counter */
1479 armv7_pmnc_disable_counter(idx
);
1482 * Clear pmresr code (if destined for PMNx counters)
1484 if (hwc
->config_base
& KRAIT_EVENT_MASK
)
1485 krait_clearpmu(hwc
->config_base
);
1487 /* Disable interrupt for this counter */
1488 armv7_pmnc_disable_intens(idx
);
1490 raw_spin_unlock_irqrestore(&events
->pmu_lock
, flags
);
1493 static void krait_pmu_enable_event(struct perf_event
*event
)
1495 unsigned long flags
;
1496 struct hw_perf_event
*hwc
= &event
->hw
;
1498 struct arm_pmu
*cpu_pmu
= to_arm_pmu(event
->pmu
);
1499 struct pmu_hw_events
*events
= this_cpu_ptr(cpu_pmu
->hw_events
);
1502 * Enable counter and interrupt, and set the counter to count
1503 * the event that we're interested in.
1505 raw_spin_lock_irqsave(&events
->pmu_lock
, flags
);
1507 /* Disable counter */
1508 armv7_pmnc_disable_counter(idx
);
1511 * Set event (if destined for PMNx counters)
1512 * We set the event for the cycle counter because we
1513 * have the ability to perform event filtering.
1515 if (hwc
->config_base
& KRAIT_EVENT_MASK
)
1516 krait_evt_setup(idx
, hwc
->config_base
);
1518 armv7_pmnc_write_evtsel(idx
, hwc
->config_base
);
1520 /* Enable interrupt for this counter */
1521 armv7_pmnc_enable_intens(idx
);
1523 /* Enable counter */
1524 armv7_pmnc_enable_counter(idx
);
1526 raw_spin_unlock_irqrestore(&events
->pmu_lock
, flags
);
1529 static void krait_pmu_reset(void *info
)
1532 struct arm_pmu
*cpu_pmu
= info
;
1533 u32 idx
, nb_cnt
= cpu_pmu
->num_events
;
1535 armv7pmu_reset(info
);
1537 /* Clear all pmresrs */
1538 krait_write_pmresrn(0, 0);
1539 krait_write_pmresrn(1, 0);
1540 krait_write_pmresrn(2, 0);
1542 venum_pre_pmresr(&vval
, &fval
);
1543 venum_write_pmresr(0);
1544 venum_post_pmresr(vval
, fval
);
1546 /* Reset PMxEVNCTCR to sane default */
1547 for (idx
= ARMV7_IDX_CYCLE_COUNTER
; idx
< nb_cnt
; ++idx
) {
1548 armv7_pmnc_select_counter(idx
);
1549 asm volatile("mcr p15, 0, %0, c9, c15, 0" : : "r" (0));
1554 static int krait_event_to_bit(struct perf_event
*event
, unsigned int region
,
1558 struct hw_perf_event
*hwc
= &event
->hw
;
1559 struct arm_pmu
*cpu_pmu
= to_arm_pmu(event
->pmu
);
1561 if (hwc
->config_base
& VENUM_EVENT
)
1562 bit
= KRAIT_VPMRESR0_GROUP0
;
1564 bit
= krait_get_pmresrn_event(region
);
1565 bit
-= krait_get_pmresrn_event(0);
1568 * Lower bits are reserved for use by the counters (see
1569 * armv7pmu_get_event_idx() for more info)
1571 bit
+= ARMV7_IDX_COUNTER_LAST(cpu_pmu
) + 1;
1577 * We check for column exclusion constraints here.
1578 * Two events cant use the same group within a pmresr register.
1580 static int krait_pmu_get_event_idx(struct pmu_hw_events
*cpuc
,
1581 struct perf_event
*event
)
1585 struct hw_perf_event
*hwc
= &event
->hw
;
1586 unsigned int region
= EVENT_REGION(hwc
->config_base
);
1587 unsigned int code
= EVENT_CODE(hwc
->config_base
);
1588 unsigned int group
= EVENT_GROUP(hwc
->config_base
);
1589 bool venum_event
= EVENT_VENUM(hwc
->config_base
);
1590 bool krait_event
= EVENT_CPU(hwc
->config_base
);
1592 if (venum_event
|| krait_event
) {
1593 /* Ignore invalid events */
1594 if (group
> 3 || region
> 2)
1596 if (venum_event
&& (code
& 0xe0))
1599 bit
= krait_event_to_bit(event
, region
, group
);
1600 if (test_and_set_bit(bit
, cpuc
->used_mask
))
1604 idx
= armv7pmu_get_event_idx(cpuc
, event
);
1605 if (idx
< 0 && bit
>= 0)
1606 clear_bit(bit
, cpuc
->used_mask
);
1611 static void krait_pmu_clear_event_idx(struct pmu_hw_events
*cpuc
,
1612 struct perf_event
*event
)
1615 struct hw_perf_event
*hwc
= &event
->hw
;
1616 unsigned int region
= EVENT_REGION(hwc
->config_base
);
1617 unsigned int group
= EVENT_GROUP(hwc
->config_base
);
1618 bool venum_event
= EVENT_VENUM(hwc
->config_base
);
1619 bool krait_event
= EVENT_CPU(hwc
->config_base
);
1621 if (venum_event
|| krait_event
) {
1622 bit
= krait_event_to_bit(event
, region
, group
);
1623 clear_bit(bit
, cpuc
->used_mask
);
1627 static int krait_pmu_init(struct arm_pmu
*cpu_pmu
)
1629 armv7pmu_init(cpu_pmu
);
1630 cpu_pmu
->name
= "armv7_krait";
1631 /* Some early versions of Krait don't support PC write events */
1632 if (of_property_read_bool(cpu_pmu
->plat_device
->dev
.of_node
,
1633 "qcom,no-pc-write"))
1634 cpu_pmu
->map_event
= krait_map_event_no_branch
;
1636 cpu_pmu
->map_event
= krait_map_event
;
1637 cpu_pmu
->set_event_filter
= armv7pmu_set_event_filter
;
1638 cpu_pmu
->reset
= krait_pmu_reset
;
1639 cpu_pmu
->enable
= krait_pmu_enable_event
;
1640 cpu_pmu
->disable
= krait_pmu_disable_event
;
1641 cpu_pmu
->get_event_idx
= krait_pmu_get_event_idx
;
1642 cpu_pmu
->clear_event_idx
= krait_pmu_clear_event_idx
;
1643 return armv7_probe_num_events(cpu_pmu
);
1647 * Scorpion Local Performance Monitor Register (LPMn)
1650 * +--------------------------------+
1651 * LPM0 | EN | CC | CC | CC | CC | N = 1, R = 0
1652 * +--------------------------------+
1653 * LPM1 | EN | CC | CC | CC | CC | N = 1, R = 1
1654 * +--------------------------------+
1655 * LPM2 | EN | CC | CC | CC | CC | N = 1, R = 2
1656 * +--------------------------------+
1657 * L2LPM | EN | CC | CC | CC | CC | N = 1, R = 3
1658 * +--------------------------------+
1659 * VLPM | EN | CC | CC | CC | CC | N = 2, R = ?
1660 * +--------------------------------+
1661 * EN | G=3 | G=2 | G=1 | G=0
1666 * hwc->config_base = 0xNRCCG
1668 * N = prefix, 1 for Scorpion CPU (LPMn/L2LPM), 2 for Venum VFP (VLPM)
1669 * R = region register
1670 * CC = class of events the group G is choosing from
1671 * G = group or particular event
1673 * Example: 0x12021 is a Scorpion CPU event in LPM2's group 1 with code 2
1675 * A region (R) corresponds to a piece of the CPU (execution unit, instruction
1676 * unit, etc.) while the event code (CC) corresponds to a particular class of
1677 * events (interrupts for example). An event code is broken down into
1678 * groups (G) that can be mapped into the PMU (irq, fiqs, and irq+fiqs for
1682 static u32
scorpion_read_pmresrn(int n
)
1688 asm volatile("mrc p15, 0, %0, c15, c0, 0" : "=r" (val
));
1691 asm volatile("mrc p15, 1, %0, c15, c0, 0" : "=r" (val
));
1694 asm volatile("mrc p15, 2, %0, c15, c0, 0" : "=r" (val
));
1697 asm volatile("mrc p15, 3, %0, c15, c2, 0" : "=r" (val
));
1700 BUG(); /* Should be validated in scorpion_pmu_get_event_idx() */
1706 static void scorpion_write_pmresrn(int n
, u32 val
)
1710 asm volatile("mcr p15, 0, %0, c15, c0, 0" : : "r" (val
));
1713 asm volatile("mcr p15, 1, %0, c15, c0, 0" : : "r" (val
));
1716 asm volatile("mcr p15, 2, %0, c15, c0, 0" : : "r" (val
));
1719 asm volatile("mcr p15, 3, %0, c15, c2, 0" : : "r" (val
));
1722 BUG(); /* Should be validated in scorpion_pmu_get_event_idx() */
1726 static u32
scorpion_get_pmresrn_event(unsigned int region
)
1728 static const u32 pmresrn_table
[] = { SCORPION_LPM0_GROUP0
,
1729 SCORPION_LPM1_GROUP0
,
1730 SCORPION_LPM2_GROUP0
,
1731 SCORPION_L2LPM_GROUP0
};
1732 return pmresrn_table
[region
];
1735 static void scorpion_evt_setup(int idx
, u32 config_base
)
1740 unsigned int region
= EVENT_REGION(config_base
);
1741 unsigned int group
= EVENT_GROUP(config_base
);
1742 unsigned int code
= EVENT_CODE(config_base
);
1743 unsigned int group_shift
;
1744 bool venum_event
= EVENT_VENUM(config_base
);
1746 group_shift
= group
* 8;
1747 mask
= 0xff << group_shift
;
1749 /* Configure evtsel for the region and group */
1751 val
= SCORPION_VLPM_GROUP0
;
1753 val
= scorpion_get_pmresrn_event(region
);
1755 /* Mix in mode-exclusion bits */
1756 val
|= config_base
& (ARMV7_EXCLUDE_USER
| ARMV7_EXCLUDE_PL1
);
1757 armv7_pmnc_write_evtsel(idx
, val
);
1759 asm volatile("mcr p15, 0, %0, c9, c15, 0" : : "r" (0));
1762 venum_pre_pmresr(&vval
, &fval
);
1763 val
= venum_read_pmresr();
1765 val
|= code
<< group_shift
;
1767 venum_write_pmresr(val
);
1768 venum_post_pmresr(vval
, fval
);
1770 val
= scorpion_read_pmresrn(region
);
1772 val
|= code
<< group_shift
;
1774 scorpion_write_pmresrn(region
, val
);
1778 static void scorpion_clearpmu(u32 config_base
)
1782 unsigned int region
= EVENT_REGION(config_base
);
1783 unsigned int group
= EVENT_GROUP(config_base
);
1784 bool venum_event
= EVENT_VENUM(config_base
);
1787 venum_pre_pmresr(&vval
, &fval
);
1788 val
= venum_read_pmresr();
1789 val
= clear_pmresrn_group(val
, group
);
1790 venum_write_pmresr(val
);
1791 venum_post_pmresr(vval
, fval
);
1793 val
= scorpion_read_pmresrn(region
);
1794 val
= clear_pmresrn_group(val
, group
);
1795 scorpion_write_pmresrn(region
, val
);
1799 static void scorpion_pmu_disable_event(struct perf_event
*event
)
1801 unsigned long flags
;
1802 struct hw_perf_event
*hwc
= &event
->hw
;
1804 struct arm_pmu
*cpu_pmu
= to_arm_pmu(event
->pmu
);
1805 struct pmu_hw_events
*events
= this_cpu_ptr(cpu_pmu
->hw_events
);
1807 /* Disable counter and interrupt */
1808 raw_spin_lock_irqsave(&events
->pmu_lock
, flags
);
1810 /* Disable counter */
1811 armv7_pmnc_disable_counter(idx
);
1814 * Clear pmresr code (if destined for PMNx counters)
1816 if (hwc
->config_base
& KRAIT_EVENT_MASK
)
1817 scorpion_clearpmu(hwc
->config_base
);
1819 /* Disable interrupt for this counter */
1820 armv7_pmnc_disable_intens(idx
);
1822 raw_spin_unlock_irqrestore(&events
->pmu_lock
, flags
);
1825 static void scorpion_pmu_enable_event(struct perf_event
*event
)
1827 unsigned long flags
;
1828 struct hw_perf_event
*hwc
= &event
->hw
;
1830 struct arm_pmu
*cpu_pmu
= to_arm_pmu(event
->pmu
);
1831 struct pmu_hw_events
*events
= this_cpu_ptr(cpu_pmu
->hw_events
);
1834 * Enable counter and interrupt, and set the counter to count
1835 * the event that we're interested in.
1837 raw_spin_lock_irqsave(&events
->pmu_lock
, flags
);
1839 /* Disable counter */
1840 armv7_pmnc_disable_counter(idx
);
1843 * Set event (if destined for PMNx counters)
1844 * We don't set the event for the cycle counter because we
1845 * don't have the ability to perform event filtering.
1847 if (hwc
->config_base
& KRAIT_EVENT_MASK
)
1848 scorpion_evt_setup(idx
, hwc
->config_base
);
1849 else if (idx
!= ARMV7_IDX_CYCLE_COUNTER
)
1850 armv7_pmnc_write_evtsel(idx
, hwc
->config_base
);
1852 /* Enable interrupt for this counter */
1853 armv7_pmnc_enable_intens(idx
);
1855 /* Enable counter */
1856 armv7_pmnc_enable_counter(idx
);
1858 raw_spin_unlock_irqrestore(&events
->pmu_lock
, flags
);
1861 static void scorpion_pmu_reset(void *info
)
1864 struct arm_pmu
*cpu_pmu
= info
;
1865 u32 idx
, nb_cnt
= cpu_pmu
->num_events
;
1867 armv7pmu_reset(info
);
1869 /* Clear all pmresrs */
1870 scorpion_write_pmresrn(0, 0);
1871 scorpion_write_pmresrn(1, 0);
1872 scorpion_write_pmresrn(2, 0);
1873 scorpion_write_pmresrn(3, 0);
1875 venum_pre_pmresr(&vval
, &fval
);
1876 venum_write_pmresr(0);
1877 venum_post_pmresr(vval
, fval
);
1879 /* Reset PMxEVNCTCR to sane default */
1880 for (idx
= ARMV7_IDX_CYCLE_COUNTER
; idx
< nb_cnt
; ++idx
) {
1881 armv7_pmnc_select_counter(idx
);
1882 asm volatile("mcr p15, 0, %0, c9, c15, 0" : : "r" (0));
1886 static int scorpion_event_to_bit(struct perf_event
*event
, unsigned int region
,
1890 struct hw_perf_event
*hwc
= &event
->hw
;
1891 struct arm_pmu
*cpu_pmu
= to_arm_pmu(event
->pmu
);
1893 if (hwc
->config_base
& VENUM_EVENT
)
1894 bit
= SCORPION_VLPM_GROUP0
;
1896 bit
= scorpion_get_pmresrn_event(region
);
1897 bit
-= scorpion_get_pmresrn_event(0);
1900 * Lower bits are reserved for use by the counters (see
1901 * armv7pmu_get_event_idx() for more info)
1903 bit
+= ARMV7_IDX_COUNTER_LAST(cpu_pmu
) + 1;
1909 * We check for column exclusion constraints here.
1910 * Two events cant use the same group within a pmresr register.
1912 static int scorpion_pmu_get_event_idx(struct pmu_hw_events
*cpuc
,
1913 struct perf_event
*event
)
1917 struct hw_perf_event
*hwc
= &event
->hw
;
1918 unsigned int region
= EVENT_REGION(hwc
->config_base
);
1919 unsigned int group
= EVENT_GROUP(hwc
->config_base
);
1920 bool venum_event
= EVENT_VENUM(hwc
->config_base
);
1921 bool scorpion_event
= EVENT_CPU(hwc
->config_base
);
1923 if (venum_event
|| scorpion_event
) {
1924 /* Ignore invalid events */
1925 if (group
> 3 || region
> 3)
1928 bit
= scorpion_event_to_bit(event
, region
, group
);
1929 if (test_and_set_bit(bit
, cpuc
->used_mask
))
1933 idx
= armv7pmu_get_event_idx(cpuc
, event
);
1934 if (idx
< 0 && bit
>= 0)
1935 clear_bit(bit
, cpuc
->used_mask
);
1940 static void scorpion_pmu_clear_event_idx(struct pmu_hw_events
*cpuc
,
1941 struct perf_event
*event
)
1944 struct hw_perf_event
*hwc
= &event
->hw
;
1945 unsigned int region
= EVENT_REGION(hwc
->config_base
);
1946 unsigned int group
= EVENT_GROUP(hwc
->config_base
);
1947 bool venum_event
= EVENT_VENUM(hwc
->config_base
);
1948 bool scorpion_event
= EVENT_CPU(hwc
->config_base
);
1950 if (venum_event
|| scorpion_event
) {
1951 bit
= scorpion_event_to_bit(event
, region
, group
);
1952 clear_bit(bit
, cpuc
->used_mask
);
1956 static int scorpion_pmu_init(struct arm_pmu
*cpu_pmu
)
1958 armv7pmu_init(cpu_pmu
);
1959 cpu_pmu
->name
= "armv7_scorpion";
1960 cpu_pmu
->map_event
= scorpion_map_event
;
1961 cpu_pmu
->reset
= scorpion_pmu_reset
;
1962 cpu_pmu
->enable
= scorpion_pmu_enable_event
;
1963 cpu_pmu
->disable
= scorpion_pmu_disable_event
;
1964 cpu_pmu
->get_event_idx
= scorpion_pmu_get_event_idx
;
1965 cpu_pmu
->clear_event_idx
= scorpion_pmu_clear_event_idx
;
1966 return armv7_probe_num_events(cpu_pmu
);
1969 static int scorpion_mp_pmu_init(struct arm_pmu
*cpu_pmu
)
1971 armv7pmu_init(cpu_pmu
);
1972 cpu_pmu
->name
= "armv7_scorpion_mp";
1973 cpu_pmu
->map_event
= scorpion_map_event
;
1974 cpu_pmu
->reset
= scorpion_pmu_reset
;
1975 cpu_pmu
->enable
= scorpion_pmu_enable_event
;
1976 cpu_pmu
->disable
= scorpion_pmu_disable_event
;
1977 cpu_pmu
->get_event_idx
= scorpion_pmu_get_event_idx
;
1978 cpu_pmu
->clear_event_idx
= scorpion_pmu_clear_event_idx
;
1979 return armv7_probe_num_events(cpu_pmu
);
1982 static const struct of_device_id armv7_pmu_of_device_ids
[] = {
1983 {.compatible
= "arm,cortex-a17-pmu", .data
= armv7_a17_pmu_init
},
1984 {.compatible
= "arm,cortex-a15-pmu", .data
= armv7_a15_pmu_init
},
1985 {.compatible
= "arm,cortex-a12-pmu", .data
= armv7_a12_pmu_init
},
1986 {.compatible
= "arm,cortex-a9-pmu", .data
= armv7_a9_pmu_init
},
1987 {.compatible
= "arm,cortex-a8-pmu", .data
= armv7_a8_pmu_init
},
1988 {.compatible
= "arm,cortex-a7-pmu", .data
= armv7_a7_pmu_init
},
1989 {.compatible
= "arm,cortex-a5-pmu", .data
= armv7_a5_pmu_init
},
1990 {.compatible
= "qcom,krait-pmu", .data
= krait_pmu_init
},
1991 {.compatible
= "qcom,scorpion-pmu", .data
= scorpion_pmu_init
},
1992 {.compatible
= "qcom,scorpion-mp-pmu", .data
= scorpion_mp_pmu_init
},
1996 static const struct pmu_probe_info armv7_pmu_probe_table
[] = {
1997 ARM_PMU_PROBE(ARM_CPU_PART_CORTEX_A8
, armv7_a8_pmu_init
),
1998 ARM_PMU_PROBE(ARM_CPU_PART_CORTEX_A9
, armv7_a9_pmu_init
),
1999 { /* sentinel value */ }
2003 static int armv7_pmu_device_probe(struct platform_device
*pdev
)
2005 return arm_pmu_device_probe(pdev
, armv7_pmu_of_device_ids
,
2006 armv7_pmu_probe_table
);
2009 static struct platform_driver armv7_pmu_driver
= {
2011 .name
= "armv7-pmu",
2012 .of_match_table
= armv7_pmu_of_device_ids
,
2014 .probe
= armv7_pmu_device_probe
,
2017 static int __init
register_armv7_pmu_driver(void)
2019 return platform_driver_register(&armv7_pmu_driver
);
2021 device_initcall(register_armv7_pmu_driver
);
2022 #endif /* CONFIG_CPU_V7 */
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