2 * Netburst Performance Events (P4, old Xeon)
7 * For licencing details see kernel-base/COPYING
10 #include <linux/perf_event.h>
12 #include <asm/perf_event_p4.h>
13 #include <asm/hardirq.h>
16 #include "perf_event.h"
18 #define P4_CNTR_LIMIT 3
20 * array indices: 0,1 - HT threads, used with HT enabled cpu
22 struct p4_event_bind {
23 unsigned int opcode; /* Event code and ESCR selector */
24 unsigned int escr_msr[2]; /* ESCR MSR for this event */
25 unsigned int escr_emask; /* valid ESCR EventMask bits */
26 unsigned int shared; /* event is shared across threads */
27 char cntr[2][P4_CNTR_LIMIT]; /* counter index (offset), -1 on abscence */
31 unsigned int metric_pebs;
32 unsigned int metric_vert;
35 /* it sets P4_PEBS_ENABLE_UOP_TAG as well */
36 #define P4_GEN_PEBS_BIND(name, pebs, vert) \
37 [P4_PEBS_METRIC__##name] = { \
38 .metric_pebs = pebs | P4_PEBS_ENABLE_UOP_TAG, \
39 .metric_vert = vert, \
43 * note we have P4_PEBS_ENABLE_UOP_TAG always set here
45 * it's needed for mapping P4_PEBS_CONFIG_METRIC_MASK bits of
46 * event configuration to find out which values are to be
47 * written into MSR_IA32_PEBS_ENABLE and MSR_P4_PEBS_MATRIX_VERT
50 static struct p4_pebs_bind p4_pebs_bind_map[] = {
51 P4_GEN_PEBS_BIND(1stl_cache_load_miss_retired, 0x0000001, 0x0000001),
52 P4_GEN_PEBS_BIND(2ndl_cache_load_miss_retired, 0x0000002, 0x0000001),
53 P4_GEN_PEBS_BIND(dtlb_load_miss_retired, 0x0000004, 0x0000001),
54 P4_GEN_PEBS_BIND(dtlb_store_miss_retired, 0x0000004, 0x0000002),
55 P4_GEN_PEBS_BIND(dtlb_all_miss_retired, 0x0000004, 0x0000003),
56 P4_GEN_PEBS_BIND(tagged_mispred_branch, 0x0018000, 0x0000010),
57 P4_GEN_PEBS_BIND(mob_load_replay_retired, 0x0000200, 0x0000001),
58 P4_GEN_PEBS_BIND(split_load_retired, 0x0000400, 0x0000001),
59 P4_GEN_PEBS_BIND(split_store_retired, 0x0000400, 0x0000002),
63 * Note that we don't use CCCR1 here, there is an
64 * exception for P4_BSQ_ALLOCATION but we just have
67 * consider this binding as resources which particular
68 * event may borrow, it doesn't contain EventMask,
69 * Tags and friends -- they are left to a caller
71 static struct p4_event_bind p4_event_bind_map[] = {
72 [P4_EVENT_TC_DELIVER_MODE] = {
73 .opcode = P4_OPCODE(P4_EVENT_TC_DELIVER_MODE),
74 .escr_msr = { MSR_P4_TC_ESCR0, MSR_P4_TC_ESCR1 },
76 P4_ESCR_EMASK_BIT(P4_EVENT_TC_DELIVER_MODE, DD) |
77 P4_ESCR_EMASK_BIT(P4_EVENT_TC_DELIVER_MODE, DB) |
78 P4_ESCR_EMASK_BIT(P4_EVENT_TC_DELIVER_MODE, DI) |
79 P4_ESCR_EMASK_BIT(P4_EVENT_TC_DELIVER_MODE, BD) |
80 P4_ESCR_EMASK_BIT(P4_EVENT_TC_DELIVER_MODE, BB) |
81 P4_ESCR_EMASK_BIT(P4_EVENT_TC_DELIVER_MODE, BI) |
82 P4_ESCR_EMASK_BIT(P4_EVENT_TC_DELIVER_MODE, ID),
84 .cntr = { {4, 5, -1}, {6, 7, -1} },
86 [P4_EVENT_BPU_FETCH_REQUEST] = {
87 .opcode = P4_OPCODE(P4_EVENT_BPU_FETCH_REQUEST),
88 .escr_msr = { MSR_P4_BPU_ESCR0, MSR_P4_BPU_ESCR1 },
90 P4_ESCR_EMASK_BIT(P4_EVENT_BPU_FETCH_REQUEST, TCMISS),
91 .cntr = { {0, -1, -1}, {2, -1, -1} },
93 [P4_EVENT_ITLB_REFERENCE] = {
94 .opcode = P4_OPCODE(P4_EVENT_ITLB_REFERENCE),
95 .escr_msr = { MSR_P4_ITLB_ESCR0, MSR_P4_ITLB_ESCR1 },
97 P4_ESCR_EMASK_BIT(P4_EVENT_ITLB_REFERENCE, HIT) |
98 P4_ESCR_EMASK_BIT(P4_EVENT_ITLB_REFERENCE, MISS) |
99 P4_ESCR_EMASK_BIT(P4_EVENT_ITLB_REFERENCE, HIT_UK),
100 .cntr = { {0, -1, -1}, {2, -1, -1} },
102 [P4_EVENT_MEMORY_CANCEL] = {
103 .opcode = P4_OPCODE(P4_EVENT_MEMORY_CANCEL),
104 .escr_msr = { MSR_P4_DAC_ESCR0, MSR_P4_DAC_ESCR1 },
106 P4_ESCR_EMASK_BIT(P4_EVENT_MEMORY_CANCEL, ST_RB_FULL) |
107 P4_ESCR_EMASK_BIT(P4_EVENT_MEMORY_CANCEL, 64K_CONF),
108 .cntr = { {8, 9, -1}, {10, 11, -1} },
110 [P4_EVENT_MEMORY_COMPLETE] = {
111 .opcode = P4_OPCODE(P4_EVENT_MEMORY_COMPLETE),
112 .escr_msr = { MSR_P4_SAAT_ESCR0 , MSR_P4_SAAT_ESCR1 },
114 P4_ESCR_EMASK_BIT(P4_EVENT_MEMORY_COMPLETE, LSC) |
115 P4_ESCR_EMASK_BIT(P4_EVENT_MEMORY_COMPLETE, SSC),
116 .cntr = { {8, 9, -1}, {10, 11, -1} },
118 [P4_EVENT_LOAD_PORT_REPLAY] = {
119 .opcode = P4_OPCODE(P4_EVENT_LOAD_PORT_REPLAY),
120 .escr_msr = { MSR_P4_SAAT_ESCR0, MSR_P4_SAAT_ESCR1 },
122 P4_ESCR_EMASK_BIT(P4_EVENT_LOAD_PORT_REPLAY, SPLIT_LD),
123 .cntr = { {8, 9, -1}, {10, 11, -1} },
125 [P4_EVENT_STORE_PORT_REPLAY] = {
126 .opcode = P4_OPCODE(P4_EVENT_STORE_PORT_REPLAY),
127 .escr_msr = { MSR_P4_SAAT_ESCR0 , MSR_P4_SAAT_ESCR1 },
129 P4_ESCR_EMASK_BIT(P4_EVENT_STORE_PORT_REPLAY, SPLIT_ST),
130 .cntr = { {8, 9, -1}, {10, 11, -1} },
132 [P4_EVENT_MOB_LOAD_REPLAY] = {
133 .opcode = P4_OPCODE(P4_EVENT_MOB_LOAD_REPLAY),
134 .escr_msr = { MSR_P4_MOB_ESCR0, MSR_P4_MOB_ESCR1 },
136 P4_ESCR_EMASK_BIT(P4_EVENT_MOB_LOAD_REPLAY, NO_STA) |
137 P4_ESCR_EMASK_BIT(P4_EVENT_MOB_LOAD_REPLAY, NO_STD) |
138 P4_ESCR_EMASK_BIT(P4_EVENT_MOB_LOAD_REPLAY, PARTIAL_DATA) |
139 P4_ESCR_EMASK_BIT(P4_EVENT_MOB_LOAD_REPLAY, UNALGN_ADDR),
140 .cntr = { {0, -1, -1}, {2, -1, -1} },
142 [P4_EVENT_PAGE_WALK_TYPE] = {
143 .opcode = P4_OPCODE(P4_EVENT_PAGE_WALK_TYPE),
144 .escr_msr = { MSR_P4_PMH_ESCR0, MSR_P4_PMH_ESCR1 },
146 P4_ESCR_EMASK_BIT(P4_EVENT_PAGE_WALK_TYPE, DTMISS) |
147 P4_ESCR_EMASK_BIT(P4_EVENT_PAGE_WALK_TYPE, ITMISS),
149 .cntr = { {0, -1, -1}, {2, -1, -1} },
151 [P4_EVENT_BSQ_CACHE_REFERENCE] = {
152 .opcode = P4_OPCODE(P4_EVENT_BSQ_CACHE_REFERENCE),
153 .escr_msr = { MSR_P4_BSU_ESCR0, MSR_P4_BSU_ESCR1 },
155 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_HITS) |
156 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_HITE) |
157 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_HITM) |
158 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_HITS) |
159 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_HITE) |
160 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_HITM) |
161 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_MISS) |
162 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_MISS) |
163 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, WR_2ndL_MISS),
164 .cntr = { {0, -1, -1}, {2, -1, -1} },
166 [P4_EVENT_IOQ_ALLOCATION] = {
167 .opcode = P4_OPCODE(P4_EVENT_IOQ_ALLOCATION),
168 .escr_msr = { MSR_P4_FSB_ESCR0, MSR_P4_FSB_ESCR1 },
170 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ALLOCATION, DEFAULT) |
171 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ALLOCATION, ALL_READ) |
172 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ALLOCATION, ALL_WRITE) |
173 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ALLOCATION, MEM_UC) |
174 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ALLOCATION, MEM_WC) |
175 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ALLOCATION, MEM_WT) |
176 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ALLOCATION, MEM_WP) |
177 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ALLOCATION, MEM_WB) |
178 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ALLOCATION, OWN) |
179 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ALLOCATION, OTHER) |
180 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ALLOCATION, PREFETCH),
181 .cntr = { {0, -1, -1}, {2, -1, -1} },
183 [P4_EVENT_IOQ_ACTIVE_ENTRIES] = { /* shared ESCR */
184 .opcode = P4_OPCODE(P4_EVENT_IOQ_ACTIVE_ENTRIES),
185 .escr_msr = { MSR_P4_FSB_ESCR1, MSR_P4_FSB_ESCR1 },
187 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ACTIVE_ENTRIES, DEFAULT) |
188 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ACTIVE_ENTRIES, ALL_READ) |
189 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ACTIVE_ENTRIES, ALL_WRITE) |
190 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_UC) |
191 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_WC) |
192 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_WT) |
193 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_WP) |
194 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ACTIVE_ENTRIES, MEM_WB) |
195 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ACTIVE_ENTRIES, OWN) |
196 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ACTIVE_ENTRIES, OTHER) |
197 P4_ESCR_EMASK_BIT(P4_EVENT_IOQ_ACTIVE_ENTRIES, PREFETCH),
198 .cntr = { {2, -1, -1}, {3, -1, -1} },
200 [P4_EVENT_FSB_DATA_ACTIVITY] = {
201 .opcode = P4_OPCODE(P4_EVENT_FSB_DATA_ACTIVITY),
202 .escr_msr = { MSR_P4_FSB_ESCR0, MSR_P4_FSB_ESCR1 },
204 P4_ESCR_EMASK_BIT(P4_EVENT_FSB_DATA_ACTIVITY, DRDY_DRV) |
205 P4_ESCR_EMASK_BIT(P4_EVENT_FSB_DATA_ACTIVITY, DRDY_OWN) |
206 P4_ESCR_EMASK_BIT(P4_EVENT_FSB_DATA_ACTIVITY, DRDY_OTHER) |
207 P4_ESCR_EMASK_BIT(P4_EVENT_FSB_DATA_ACTIVITY, DBSY_DRV) |
208 P4_ESCR_EMASK_BIT(P4_EVENT_FSB_DATA_ACTIVITY, DBSY_OWN) |
209 P4_ESCR_EMASK_BIT(P4_EVENT_FSB_DATA_ACTIVITY, DBSY_OTHER),
211 .cntr = { {0, -1, -1}, {2, -1, -1} },
213 [P4_EVENT_BSQ_ALLOCATION] = { /* shared ESCR, broken CCCR1 */
214 .opcode = P4_OPCODE(P4_EVENT_BSQ_ALLOCATION),
215 .escr_msr = { MSR_P4_BSU_ESCR0, MSR_P4_BSU_ESCR0 },
217 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, REQ_TYPE0) |
218 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, REQ_TYPE1) |
219 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, REQ_LEN0) |
220 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, REQ_LEN1) |
221 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, REQ_IO_TYPE) |
222 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, REQ_LOCK_TYPE) |
223 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, REQ_CACHE_TYPE) |
224 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, REQ_SPLIT_TYPE) |
225 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, REQ_DEM_TYPE) |
226 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, REQ_ORD_TYPE) |
227 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, MEM_TYPE0) |
228 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, MEM_TYPE1) |
229 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ALLOCATION, MEM_TYPE2),
230 .cntr = { {0, -1, -1}, {1, -1, -1} },
232 [P4_EVENT_BSQ_ACTIVE_ENTRIES] = { /* shared ESCR */
233 .opcode = P4_OPCODE(P4_EVENT_BSQ_ACTIVE_ENTRIES),
234 .escr_msr = { MSR_P4_BSU_ESCR1 , MSR_P4_BSU_ESCR1 },
236 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_TYPE0) |
237 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_TYPE1) |
238 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_LEN0) |
239 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_LEN1) |
240 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_IO_TYPE) |
241 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_LOCK_TYPE) |
242 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_CACHE_TYPE) |
243 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_SPLIT_TYPE) |
244 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_DEM_TYPE) |
245 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, REQ_ORD_TYPE) |
246 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, MEM_TYPE0) |
247 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, MEM_TYPE1) |
248 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_ACTIVE_ENTRIES, MEM_TYPE2),
249 .cntr = { {2, -1, -1}, {3, -1, -1} },
251 [P4_EVENT_SSE_INPUT_ASSIST] = {
252 .opcode = P4_OPCODE(P4_EVENT_SSE_INPUT_ASSIST),
253 .escr_msr = { MSR_P4_FIRM_ESCR0, MSR_P4_FIRM_ESCR1 },
255 P4_ESCR_EMASK_BIT(P4_EVENT_SSE_INPUT_ASSIST, ALL),
257 .cntr = { {8, 9, -1}, {10, 11, -1} },
259 [P4_EVENT_PACKED_SP_UOP] = {
260 .opcode = P4_OPCODE(P4_EVENT_PACKED_SP_UOP),
261 .escr_msr = { MSR_P4_FIRM_ESCR0, MSR_P4_FIRM_ESCR1 },
263 P4_ESCR_EMASK_BIT(P4_EVENT_PACKED_SP_UOP, ALL),
265 .cntr = { {8, 9, -1}, {10, 11, -1} },
267 [P4_EVENT_PACKED_DP_UOP] = {
268 .opcode = P4_OPCODE(P4_EVENT_PACKED_DP_UOP),
269 .escr_msr = { MSR_P4_FIRM_ESCR0, MSR_P4_FIRM_ESCR1 },
271 P4_ESCR_EMASK_BIT(P4_EVENT_PACKED_DP_UOP, ALL),
273 .cntr = { {8, 9, -1}, {10, 11, -1} },
275 [P4_EVENT_SCALAR_SP_UOP] = {
276 .opcode = P4_OPCODE(P4_EVENT_SCALAR_SP_UOP),
277 .escr_msr = { MSR_P4_FIRM_ESCR0, MSR_P4_FIRM_ESCR1 },
279 P4_ESCR_EMASK_BIT(P4_EVENT_SCALAR_SP_UOP, ALL),
281 .cntr = { {8, 9, -1}, {10, 11, -1} },
283 [P4_EVENT_SCALAR_DP_UOP] = {
284 .opcode = P4_OPCODE(P4_EVENT_SCALAR_DP_UOP),
285 .escr_msr = { MSR_P4_FIRM_ESCR0, MSR_P4_FIRM_ESCR1 },
287 P4_ESCR_EMASK_BIT(P4_EVENT_SCALAR_DP_UOP, ALL),
289 .cntr = { {8, 9, -1}, {10, 11, -1} },
291 [P4_EVENT_64BIT_MMX_UOP] = {
292 .opcode = P4_OPCODE(P4_EVENT_64BIT_MMX_UOP),
293 .escr_msr = { MSR_P4_FIRM_ESCR0, MSR_P4_FIRM_ESCR1 },
295 P4_ESCR_EMASK_BIT(P4_EVENT_64BIT_MMX_UOP, ALL),
297 .cntr = { {8, 9, -1}, {10, 11, -1} },
299 [P4_EVENT_128BIT_MMX_UOP] = {
300 .opcode = P4_OPCODE(P4_EVENT_128BIT_MMX_UOP),
301 .escr_msr = { MSR_P4_FIRM_ESCR0, MSR_P4_FIRM_ESCR1 },
303 P4_ESCR_EMASK_BIT(P4_EVENT_128BIT_MMX_UOP, ALL),
305 .cntr = { {8, 9, -1}, {10, 11, -1} },
307 [P4_EVENT_X87_FP_UOP] = {
308 .opcode = P4_OPCODE(P4_EVENT_X87_FP_UOP),
309 .escr_msr = { MSR_P4_FIRM_ESCR0, MSR_P4_FIRM_ESCR1 },
311 P4_ESCR_EMASK_BIT(P4_EVENT_X87_FP_UOP, ALL),
313 .cntr = { {8, 9, -1}, {10, 11, -1} },
315 [P4_EVENT_TC_MISC] = {
316 .opcode = P4_OPCODE(P4_EVENT_TC_MISC),
317 .escr_msr = { MSR_P4_TC_ESCR0, MSR_P4_TC_ESCR1 },
319 P4_ESCR_EMASK_BIT(P4_EVENT_TC_MISC, FLUSH),
320 .cntr = { {4, 5, -1}, {6, 7, -1} },
322 [P4_EVENT_GLOBAL_POWER_EVENTS] = {
323 .opcode = P4_OPCODE(P4_EVENT_GLOBAL_POWER_EVENTS),
324 .escr_msr = { MSR_P4_FSB_ESCR0, MSR_P4_FSB_ESCR1 },
326 P4_ESCR_EMASK_BIT(P4_EVENT_GLOBAL_POWER_EVENTS, RUNNING),
327 .cntr = { {0, -1, -1}, {2, -1, -1} },
329 [P4_EVENT_TC_MS_XFER] = {
330 .opcode = P4_OPCODE(P4_EVENT_TC_MS_XFER),
331 .escr_msr = { MSR_P4_MS_ESCR0, MSR_P4_MS_ESCR1 },
333 P4_ESCR_EMASK_BIT(P4_EVENT_TC_MS_XFER, CISC),
334 .cntr = { {4, 5, -1}, {6, 7, -1} },
336 [P4_EVENT_UOP_QUEUE_WRITES] = {
337 .opcode = P4_OPCODE(P4_EVENT_UOP_QUEUE_WRITES),
338 .escr_msr = { MSR_P4_MS_ESCR0, MSR_P4_MS_ESCR1 },
340 P4_ESCR_EMASK_BIT(P4_EVENT_UOP_QUEUE_WRITES, FROM_TC_BUILD) |
341 P4_ESCR_EMASK_BIT(P4_EVENT_UOP_QUEUE_WRITES, FROM_TC_DELIVER) |
342 P4_ESCR_EMASK_BIT(P4_EVENT_UOP_QUEUE_WRITES, FROM_ROM),
343 .cntr = { {4, 5, -1}, {6, 7, -1} },
345 [P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE] = {
346 .opcode = P4_OPCODE(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE),
347 .escr_msr = { MSR_P4_TBPU_ESCR0 , MSR_P4_TBPU_ESCR0 },
349 P4_ESCR_EMASK_BIT(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, CONDITIONAL) |
350 P4_ESCR_EMASK_BIT(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, CALL) |
351 P4_ESCR_EMASK_BIT(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, RETURN) |
352 P4_ESCR_EMASK_BIT(P4_EVENT_RETIRED_MISPRED_BRANCH_TYPE, INDIRECT),
353 .cntr = { {4, 5, -1}, {6, 7, -1} },
355 [P4_EVENT_RETIRED_BRANCH_TYPE] = {
356 .opcode = P4_OPCODE(P4_EVENT_RETIRED_BRANCH_TYPE),
357 .escr_msr = { MSR_P4_TBPU_ESCR0 , MSR_P4_TBPU_ESCR1 },
359 P4_ESCR_EMASK_BIT(P4_EVENT_RETIRED_BRANCH_TYPE, CONDITIONAL) |
360 P4_ESCR_EMASK_BIT(P4_EVENT_RETIRED_BRANCH_TYPE, CALL) |
361 P4_ESCR_EMASK_BIT(P4_EVENT_RETIRED_BRANCH_TYPE, RETURN) |
362 P4_ESCR_EMASK_BIT(P4_EVENT_RETIRED_BRANCH_TYPE, INDIRECT),
363 .cntr = { {4, 5, -1}, {6, 7, -1} },
365 [P4_EVENT_RESOURCE_STALL] = {
366 .opcode = P4_OPCODE(P4_EVENT_RESOURCE_STALL),
367 .escr_msr = { MSR_P4_ALF_ESCR0, MSR_P4_ALF_ESCR1 },
369 P4_ESCR_EMASK_BIT(P4_EVENT_RESOURCE_STALL, SBFULL),
370 .cntr = { {12, 13, 16}, {14, 15, 17} },
372 [P4_EVENT_WC_BUFFER] = {
373 .opcode = P4_OPCODE(P4_EVENT_WC_BUFFER),
374 .escr_msr = { MSR_P4_DAC_ESCR0, MSR_P4_DAC_ESCR1 },
376 P4_ESCR_EMASK_BIT(P4_EVENT_WC_BUFFER, WCB_EVICTS) |
377 P4_ESCR_EMASK_BIT(P4_EVENT_WC_BUFFER, WCB_FULL_EVICTS),
379 .cntr = { {8, 9, -1}, {10, 11, -1} },
381 [P4_EVENT_B2B_CYCLES] = {
382 .opcode = P4_OPCODE(P4_EVENT_B2B_CYCLES),
383 .escr_msr = { MSR_P4_FSB_ESCR0, MSR_P4_FSB_ESCR1 },
385 .cntr = { {0, -1, -1}, {2, -1, -1} },
388 .opcode = P4_OPCODE(P4_EVENT_BNR),
389 .escr_msr = { MSR_P4_FSB_ESCR0, MSR_P4_FSB_ESCR1 },
391 .cntr = { {0, -1, -1}, {2, -1, -1} },
394 .opcode = P4_OPCODE(P4_EVENT_SNOOP),
395 .escr_msr = { MSR_P4_FSB_ESCR0, MSR_P4_FSB_ESCR1 },
397 .cntr = { {0, -1, -1}, {2, -1, -1} },
399 [P4_EVENT_RESPONSE] = {
400 .opcode = P4_OPCODE(P4_EVENT_RESPONSE),
401 .escr_msr = { MSR_P4_FSB_ESCR0, MSR_P4_FSB_ESCR1 },
403 .cntr = { {0, -1, -1}, {2, -1, -1} },
405 [P4_EVENT_FRONT_END_EVENT] = {
406 .opcode = P4_OPCODE(P4_EVENT_FRONT_END_EVENT),
407 .escr_msr = { MSR_P4_CRU_ESCR2, MSR_P4_CRU_ESCR3 },
409 P4_ESCR_EMASK_BIT(P4_EVENT_FRONT_END_EVENT, NBOGUS) |
410 P4_ESCR_EMASK_BIT(P4_EVENT_FRONT_END_EVENT, BOGUS),
411 .cntr = { {12, 13, 16}, {14, 15, 17} },
413 [P4_EVENT_EXECUTION_EVENT] = {
414 .opcode = P4_OPCODE(P4_EVENT_EXECUTION_EVENT),
415 .escr_msr = { MSR_P4_CRU_ESCR2, MSR_P4_CRU_ESCR3 },
417 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, NBOGUS0) |
418 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, NBOGUS1) |
419 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, NBOGUS2) |
420 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, NBOGUS3) |
421 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, BOGUS0) |
422 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, BOGUS1) |
423 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, BOGUS2) |
424 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, BOGUS3),
425 .cntr = { {12, 13, 16}, {14, 15, 17} },
427 [P4_EVENT_REPLAY_EVENT] = {
428 .opcode = P4_OPCODE(P4_EVENT_REPLAY_EVENT),
429 .escr_msr = { MSR_P4_CRU_ESCR2, MSR_P4_CRU_ESCR3 },
431 P4_ESCR_EMASK_BIT(P4_EVENT_REPLAY_EVENT, NBOGUS) |
432 P4_ESCR_EMASK_BIT(P4_EVENT_REPLAY_EVENT, BOGUS),
433 .cntr = { {12, 13, 16}, {14, 15, 17} },
435 [P4_EVENT_INSTR_RETIRED] = {
436 .opcode = P4_OPCODE(P4_EVENT_INSTR_RETIRED),
437 .escr_msr = { MSR_P4_CRU_ESCR0, MSR_P4_CRU_ESCR1 },
439 P4_ESCR_EMASK_BIT(P4_EVENT_INSTR_RETIRED, NBOGUSNTAG) |
440 P4_ESCR_EMASK_BIT(P4_EVENT_INSTR_RETIRED, NBOGUSTAG) |
441 P4_ESCR_EMASK_BIT(P4_EVENT_INSTR_RETIRED, BOGUSNTAG) |
442 P4_ESCR_EMASK_BIT(P4_EVENT_INSTR_RETIRED, BOGUSTAG),
443 .cntr = { {12, 13, 16}, {14, 15, 17} },
445 [P4_EVENT_UOPS_RETIRED] = {
446 .opcode = P4_OPCODE(P4_EVENT_UOPS_RETIRED),
447 .escr_msr = { MSR_P4_CRU_ESCR0, MSR_P4_CRU_ESCR1 },
449 P4_ESCR_EMASK_BIT(P4_EVENT_UOPS_RETIRED, NBOGUS) |
450 P4_ESCR_EMASK_BIT(P4_EVENT_UOPS_RETIRED, BOGUS),
451 .cntr = { {12, 13, 16}, {14, 15, 17} },
453 [P4_EVENT_UOP_TYPE] = {
454 .opcode = P4_OPCODE(P4_EVENT_UOP_TYPE),
455 .escr_msr = { MSR_P4_RAT_ESCR0, MSR_P4_RAT_ESCR1 },
457 P4_ESCR_EMASK_BIT(P4_EVENT_UOP_TYPE, TAGLOADS) |
458 P4_ESCR_EMASK_BIT(P4_EVENT_UOP_TYPE, TAGSTORES),
459 .cntr = { {12, 13, 16}, {14, 15, 17} },
461 [P4_EVENT_BRANCH_RETIRED] = {
462 .opcode = P4_OPCODE(P4_EVENT_BRANCH_RETIRED),
463 .escr_msr = { MSR_P4_CRU_ESCR2, MSR_P4_CRU_ESCR3 },
465 P4_ESCR_EMASK_BIT(P4_EVENT_BRANCH_RETIRED, MMNP) |
466 P4_ESCR_EMASK_BIT(P4_EVENT_BRANCH_RETIRED, MMNM) |
467 P4_ESCR_EMASK_BIT(P4_EVENT_BRANCH_RETIRED, MMTP) |
468 P4_ESCR_EMASK_BIT(P4_EVENT_BRANCH_RETIRED, MMTM),
469 .cntr = { {12, 13, 16}, {14, 15, 17} },
471 [P4_EVENT_MISPRED_BRANCH_RETIRED] = {
472 .opcode = P4_OPCODE(P4_EVENT_MISPRED_BRANCH_RETIRED),
473 .escr_msr = { MSR_P4_CRU_ESCR0, MSR_P4_CRU_ESCR1 },
475 P4_ESCR_EMASK_BIT(P4_EVENT_MISPRED_BRANCH_RETIRED, NBOGUS),
476 .cntr = { {12, 13, 16}, {14, 15, 17} },
478 [P4_EVENT_X87_ASSIST] = {
479 .opcode = P4_OPCODE(P4_EVENT_X87_ASSIST),
480 .escr_msr = { MSR_P4_CRU_ESCR2, MSR_P4_CRU_ESCR3 },
482 P4_ESCR_EMASK_BIT(P4_EVENT_X87_ASSIST, FPSU) |
483 P4_ESCR_EMASK_BIT(P4_EVENT_X87_ASSIST, FPSO) |
484 P4_ESCR_EMASK_BIT(P4_EVENT_X87_ASSIST, POAO) |
485 P4_ESCR_EMASK_BIT(P4_EVENT_X87_ASSIST, POAU) |
486 P4_ESCR_EMASK_BIT(P4_EVENT_X87_ASSIST, PREA),
487 .cntr = { {12, 13, 16}, {14, 15, 17} },
489 [P4_EVENT_MACHINE_CLEAR] = {
490 .opcode = P4_OPCODE(P4_EVENT_MACHINE_CLEAR),
491 .escr_msr = { MSR_P4_CRU_ESCR2, MSR_P4_CRU_ESCR3 },
493 P4_ESCR_EMASK_BIT(P4_EVENT_MACHINE_CLEAR, CLEAR) |
494 P4_ESCR_EMASK_BIT(P4_EVENT_MACHINE_CLEAR, MOCLEAR) |
495 P4_ESCR_EMASK_BIT(P4_EVENT_MACHINE_CLEAR, SMCLEAR),
496 .cntr = { {12, 13, 16}, {14, 15, 17} },
498 [P4_EVENT_INSTR_COMPLETED] = {
499 .opcode = P4_OPCODE(P4_EVENT_INSTR_COMPLETED),
500 .escr_msr = { MSR_P4_CRU_ESCR0, MSR_P4_CRU_ESCR1 },
502 P4_ESCR_EMASK_BIT(P4_EVENT_INSTR_COMPLETED, NBOGUS) |
503 P4_ESCR_EMASK_BIT(P4_EVENT_INSTR_COMPLETED, BOGUS),
504 .cntr = { {12, 13, 16}, {14, 15, 17} },
508 #define P4_GEN_CACHE_EVENT(event, bit, metric) \
509 p4_config_pack_escr(P4_ESCR_EVENT(event) | \
510 P4_ESCR_EMASK_BIT(event, bit)) | \
511 p4_config_pack_cccr(metric | \
512 P4_CCCR_ESEL(P4_OPCODE_ESEL(P4_OPCODE(event))))
514 static __initconst const u64 p4_hw_cache_event_ids
515 [PERF_COUNT_HW_CACHE_MAX]
516 [PERF_COUNT_HW_CACHE_OP_MAX]
517 [PERF_COUNT_HW_CACHE_RESULT_MAX] =
521 [ C(RESULT_ACCESS) ] = 0x0,
522 [ C(RESULT_MISS) ] = P4_GEN_CACHE_EVENT(P4_EVENT_REPLAY_EVENT, NBOGUS,
523 P4_PEBS_METRIC__1stl_cache_load_miss_retired),
528 [ C(RESULT_ACCESS) ] = 0x0,
529 [ C(RESULT_MISS) ] = P4_GEN_CACHE_EVENT(P4_EVENT_REPLAY_EVENT, NBOGUS,
530 P4_PEBS_METRIC__2ndl_cache_load_miss_retired),
535 [ C(RESULT_ACCESS) ] = 0x0,
536 [ C(RESULT_MISS) ] = P4_GEN_CACHE_EVENT(P4_EVENT_REPLAY_EVENT, NBOGUS,
537 P4_PEBS_METRIC__dtlb_load_miss_retired),
540 [ C(RESULT_ACCESS) ] = 0x0,
541 [ C(RESULT_MISS) ] = P4_GEN_CACHE_EVENT(P4_EVENT_REPLAY_EVENT, NBOGUS,
542 P4_PEBS_METRIC__dtlb_store_miss_retired),
547 [ C(RESULT_ACCESS) ] = P4_GEN_CACHE_EVENT(P4_EVENT_ITLB_REFERENCE, HIT,
548 P4_PEBS_METRIC__none),
549 [ C(RESULT_MISS) ] = P4_GEN_CACHE_EVENT(P4_EVENT_ITLB_REFERENCE, MISS,
550 P4_PEBS_METRIC__none),
553 [ C(RESULT_ACCESS) ] = -1,
554 [ C(RESULT_MISS) ] = -1,
556 [ C(OP_PREFETCH) ] = {
557 [ C(RESULT_ACCESS) ] = -1,
558 [ C(RESULT_MISS) ] = -1,
563 [ C(RESULT_ACCESS) ] = -1,
564 [ C(RESULT_MISS) ] = -1,
567 [ C(RESULT_ACCESS) ] = -1,
568 [ C(RESULT_MISS) ] = -1,
570 [ C(OP_PREFETCH) ] = {
571 [ C(RESULT_ACCESS) ] = -1,
572 [ C(RESULT_MISS) ] = -1,
578 * Because of Netburst being quite restricted in how many
579 * identical events may run simultaneously, we introduce event aliases,
580 * ie the different events which have the same functionality but
581 * utilize non-intersected resources (ESCR/CCCR/counter registers).
583 * This allow us to relax restrictions a bit and run two or more
584 * identical events together.
586 * Never set any custom internal bits such as P4_CONFIG_HT,
587 * P4_CONFIG_ALIASABLE or bits for P4_PEBS_METRIC, they are
588 * either up to date automatically or not applicable at all.
590 struct p4_event_alias {
593 } p4_event_aliases[] = {
596 * Non-halted cycles can be substituted with non-sleeping cycles (see
597 * Intel SDM Vol3b for details). We need this alias to be able
598 * to run nmi-watchdog and 'perf top' (or any other user space tool
599 * which is interested in running PERF_COUNT_HW_CPU_CYCLES)
603 p4_config_pack_escr(P4_ESCR_EVENT(P4_EVENT_GLOBAL_POWER_EVENTS) |
604 P4_ESCR_EMASK_BIT(P4_EVENT_GLOBAL_POWER_EVENTS, RUNNING)),
606 p4_config_pack_escr(P4_ESCR_EVENT(P4_EVENT_EXECUTION_EVENT) |
607 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, NBOGUS0)|
608 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, NBOGUS1)|
609 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, NBOGUS2)|
610 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, NBOGUS3)|
611 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, BOGUS0) |
612 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, BOGUS1) |
613 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, BOGUS2) |
614 P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, BOGUS3))|
615 p4_config_pack_cccr(P4_CCCR_THRESHOLD(15) | P4_CCCR_COMPLEMENT |
620 static u64 p4_get_alias_event(u64 config)
626 * Only event with special mark is allowed,
627 * we're to be sure it didn't come as malformed
630 if (!(config & P4_CONFIG_ALIASABLE))
633 config_match = config & P4_CONFIG_EVENT_ALIAS_MASK;
635 for (i = 0; i < ARRAY_SIZE(p4_event_aliases); i++) {
636 if (config_match == p4_event_aliases[i].original) {
637 config_match = p4_event_aliases[i].alternative;
639 } else if (config_match == p4_event_aliases[i].alternative) {
640 config_match = p4_event_aliases[i].original;
645 if (i >= ARRAY_SIZE(p4_event_aliases))
648 return config_match | (config & P4_CONFIG_EVENT_ALIAS_IMMUTABLE_BITS);
651 static u64 p4_general_events[PERF_COUNT_HW_MAX] = {
652 /* non-halted CPU clocks */
653 [PERF_COUNT_HW_CPU_CYCLES] =
654 p4_config_pack_escr(P4_ESCR_EVENT(P4_EVENT_GLOBAL_POWER_EVENTS) |
655 P4_ESCR_EMASK_BIT(P4_EVENT_GLOBAL_POWER_EVENTS, RUNNING)) |
659 * retired instructions
660 * in a sake of simplicity we don't use the FSB tagging
662 [PERF_COUNT_HW_INSTRUCTIONS] =
663 p4_config_pack_escr(P4_ESCR_EVENT(P4_EVENT_INSTR_RETIRED) |
664 P4_ESCR_EMASK_BIT(P4_EVENT_INSTR_RETIRED, NBOGUSNTAG) |
665 P4_ESCR_EMASK_BIT(P4_EVENT_INSTR_RETIRED, BOGUSNTAG)),
668 [PERF_COUNT_HW_CACHE_REFERENCES] =
669 p4_config_pack_escr(P4_ESCR_EVENT(P4_EVENT_BSQ_CACHE_REFERENCE) |
670 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_HITS) |
671 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_HITE) |
672 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_HITM) |
673 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_HITS) |
674 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_HITE) |
675 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_HITM)),
678 [PERF_COUNT_HW_CACHE_MISSES] =
679 p4_config_pack_escr(P4_ESCR_EVENT(P4_EVENT_BSQ_CACHE_REFERENCE) |
680 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_2ndL_MISS) |
681 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, RD_3rdL_MISS) |
682 P4_ESCR_EMASK_BIT(P4_EVENT_BSQ_CACHE_REFERENCE, WR_2ndL_MISS)),
684 /* branch instructions retired */
685 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] =
686 p4_config_pack_escr(P4_ESCR_EVENT(P4_EVENT_RETIRED_BRANCH_TYPE) |
687 P4_ESCR_EMASK_BIT(P4_EVENT_RETIRED_BRANCH_TYPE, CONDITIONAL) |
688 P4_ESCR_EMASK_BIT(P4_EVENT_RETIRED_BRANCH_TYPE, CALL) |
689 P4_ESCR_EMASK_BIT(P4_EVENT_RETIRED_BRANCH_TYPE, RETURN) |
690 P4_ESCR_EMASK_BIT(P4_EVENT_RETIRED_BRANCH_TYPE, INDIRECT)),
692 /* mispredicted branches retired */
693 [PERF_COUNT_HW_BRANCH_MISSES] =
694 p4_config_pack_escr(P4_ESCR_EVENT(P4_EVENT_MISPRED_BRANCH_RETIRED) |
695 P4_ESCR_EMASK_BIT(P4_EVENT_MISPRED_BRANCH_RETIRED, NBOGUS)),
697 /* bus ready clocks (cpu is driving #DRDY_DRV\#DRDY_OWN): */
698 [PERF_COUNT_HW_BUS_CYCLES] =
699 p4_config_pack_escr(P4_ESCR_EVENT(P4_EVENT_FSB_DATA_ACTIVITY) |
700 P4_ESCR_EMASK_BIT(P4_EVENT_FSB_DATA_ACTIVITY, DRDY_DRV) |
701 P4_ESCR_EMASK_BIT(P4_EVENT_FSB_DATA_ACTIVITY, DRDY_OWN)) |
702 p4_config_pack_cccr(P4_CCCR_EDGE | P4_CCCR_COMPARE),
705 static struct p4_event_bind *p4_config_get_bind(u64 config)
707 unsigned int evnt = p4_config_unpack_event(config);
708 struct p4_event_bind *bind = NULL;
710 if (evnt < ARRAY_SIZE(p4_event_bind_map))
711 bind = &p4_event_bind_map[evnt];
716 static u64 p4_pmu_event_map(int hw_event)
718 struct p4_event_bind *bind;
722 config = p4_general_events[hw_event];
723 bind = p4_config_get_bind(config);
724 esel = P4_OPCODE_ESEL(bind->opcode);
725 config |= p4_config_pack_cccr(P4_CCCR_ESEL(esel));
730 /* check cpu model specifics */
731 static bool p4_event_match_cpu_model(unsigned int event_idx)
733 /* INSTR_COMPLETED event only exist for model 3, 4, 6 (Prescott) */
734 if (event_idx == P4_EVENT_INSTR_COMPLETED) {
735 if (boot_cpu_data.x86_model != 3 &&
736 boot_cpu_data.x86_model != 4 &&
737 boot_cpu_data.x86_model != 6)
743 * - IQ_ESCR0, IQ_ESCR1 only for models 1 and 2
749 static int p4_validate_raw_event(struct perf_event *event)
751 unsigned int v, emask;
753 /* User data may have out-of-bound event index */
754 v = p4_config_unpack_event(event->attr.config);
755 if (v >= ARRAY_SIZE(p4_event_bind_map))
758 /* It may be unsupported: */
759 if (!p4_event_match_cpu_model(v))
763 * NOTE: P4_CCCR_THREAD_ANY has not the same meaning as
764 * in Architectural Performance Monitoring, it means not
765 * on _which_ logical cpu to count but rather _when_, ie it
766 * depends on logical cpu state -- count event if one cpu active,
767 * none, both or any, so we just allow user to pass any value
770 * In turn we always set Tx_OS/Tx_USR bits bound to logical
771 * cpu without their propagation to another cpu
775 * if an event is shared across the logical threads
776 * the user needs special permissions to be able to use it
778 if (p4_ht_active() && p4_event_bind_map[v].shared) {
779 if (perf_paranoid_cpu() && !capable(CAP_SYS_ADMIN))
783 /* ESCR EventMask bits may be invalid */
784 emask = p4_config_unpack_escr(event->attr.config) & P4_ESCR_EVENTMASK_MASK;
785 if (emask & ~p4_event_bind_map[v].escr_emask)
789 * it may have some invalid PEBS bits
791 if (p4_config_pebs_has(event->attr.config, P4_PEBS_CONFIG_ENABLE))
794 v = p4_config_unpack_metric(event->attr.config);
795 if (v >= ARRAY_SIZE(p4_pebs_bind_map))
801 static int p4_hw_config(struct perf_event *event)
808 * the reason we use cpu that early is that: if we get scheduled
809 * first time on the same cpu -- we will not need swap thread
810 * specific flags in config (and will save some cpu cycles)
813 cccr = p4_default_cccr_conf(cpu);
814 escr = p4_default_escr_conf(cpu, event->attr.exclude_kernel,
815 event->attr.exclude_user);
816 event->hw.config = p4_config_pack_escr(escr) |
817 p4_config_pack_cccr(cccr);
819 if (p4_ht_active() && p4_ht_thread(cpu))
820 event->hw.config = p4_set_ht_bit(event->hw.config);
822 if (event->attr.type == PERF_TYPE_RAW) {
823 struct p4_event_bind *bind;
826 * Clear bits we reserve to be managed by kernel itself
827 * and never allowed from a user space
829 event->attr.config &= P4_CONFIG_MASK;
831 rc = p4_validate_raw_event(event);
836 * Note that for RAW events we allow user to use P4_CCCR_RESERVED
837 * bits since we keep additional info here (for cache events and etc)
839 event->hw.config |= event->attr.config;
840 bind = p4_config_get_bind(event->attr.config);
845 esel = P4_OPCODE_ESEL(bind->opcode);
846 event->hw.config |= p4_config_pack_cccr(P4_CCCR_ESEL(esel));
849 rc = x86_setup_perfctr(event);
855 static inline int p4_pmu_clear_cccr_ovf(struct hw_perf_event *hwc)
859 /* an official way for overflow indication */
860 rdmsrl(hwc->config_base, v);
861 if (v & P4_CCCR_OVF) {
862 wrmsrl(hwc->config_base, v & ~P4_CCCR_OVF);
867 * In some circumstances the overflow might issue an NMI but did
868 * not set P4_CCCR_OVF bit. Because a counter holds a negative value
869 * we simply check for high bit being set, if it's cleared it means
870 * the counter has reached zero value and continued counting before
871 * real NMI signal was received:
873 rdmsrl(hwc->event_base, v);
874 if (!(v & ARCH_P4_UNFLAGGED_BIT))
880 static void p4_pmu_disable_pebs(void)
885 * It's still allowed that two threads setup same cache
886 * events so we can't simply clear metrics until we knew
887 * no one is depending on us, so we need kind of counter
888 * for "ReplayEvent" users.
890 * What is more complex -- RAW events, if user (for some
891 * reason) will pass some cache event metric with improper
892 * event opcode -- it's fine from hardware point of view
893 * but completely nonsense from "meaning" of such action.
895 * So at moment let leave metrics turned on forever -- it's
896 * ok for now but need to be revisited!
898 * (void)wrmsrl_safe(MSR_IA32_PEBS_ENABLE, 0);
899 * (void)wrmsrl_safe(MSR_P4_PEBS_MATRIX_VERT, 0);
903 static inline void p4_pmu_disable_event(struct perf_event *event)
905 struct hw_perf_event *hwc = &event->hw;
908 * If event gets disabled while counter is in overflowed
909 * state we need to clear P4_CCCR_OVF, otherwise interrupt get
910 * asserted again and again
912 (void)wrmsrl_safe(hwc->config_base,
913 p4_config_unpack_cccr(hwc->config) & ~P4_CCCR_ENABLE & ~P4_CCCR_OVF & ~P4_CCCR_RESERVED);
916 static void p4_pmu_disable_all(void)
918 struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
921 for (idx = 0; idx < x86_pmu.num_counters; idx++) {
922 struct perf_event *event = cpuc->events[idx];
923 if (!test_bit(idx, cpuc->active_mask))
925 p4_pmu_disable_event(event);
928 p4_pmu_disable_pebs();
931 /* configuration must be valid */
932 static void p4_pmu_enable_pebs(u64 config)
934 struct p4_pebs_bind *bind;
937 BUILD_BUG_ON(P4_PEBS_METRIC__max > P4_PEBS_CONFIG_METRIC_MASK);
939 idx = p4_config_unpack_metric(config);
940 if (idx == P4_PEBS_METRIC__none)
943 bind = &p4_pebs_bind_map[idx];
945 (void)wrmsrl_safe(MSR_IA32_PEBS_ENABLE, (u64)bind->metric_pebs);
946 (void)wrmsrl_safe(MSR_P4_PEBS_MATRIX_VERT, (u64)bind->metric_vert);
949 static void p4_pmu_enable_event(struct perf_event *event)
951 struct hw_perf_event *hwc = &event->hw;
952 int thread = p4_ht_config_thread(hwc->config);
953 u64 escr_conf = p4_config_unpack_escr(p4_clear_ht_bit(hwc->config));
954 unsigned int idx = p4_config_unpack_event(hwc->config);
955 struct p4_event_bind *bind;
958 bind = &p4_event_bind_map[idx];
959 escr_addr = bind->escr_msr[thread];
962 * - we dont support cascaded counters yet
963 * - and counter 1 is broken (erratum)
965 WARN_ON_ONCE(p4_is_event_cascaded(hwc->config));
966 WARN_ON_ONCE(hwc->idx == 1);
968 /* we need a real Event value */
969 escr_conf &= ~P4_ESCR_EVENT_MASK;
970 escr_conf |= P4_ESCR_EVENT(P4_OPCODE_EVNT(bind->opcode));
972 cccr = p4_config_unpack_cccr(hwc->config);
975 * it could be Cache event so we need to write metrics
976 * into additional MSRs
978 p4_pmu_enable_pebs(hwc->config);
980 (void)wrmsrl_safe(escr_addr, escr_conf);
981 (void)wrmsrl_safe(hwc->config_base,
982 (cccr & ~P4_CCCR_RESERVED) | P4_CCCR_ENABLE);
985 static void p4_pmu_enable_all(int added)
987 struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
990 for (idx = 0; idx < x86_pmu.num_counters; idx++) {
991 struct perf_event *event = cpuc->events[idx];
992 if (!test_bit(idx, cpuc->active_mask))
994 p4_pmu_enable_event(event);
998 static int p4_pmu_handle_irq(struct pt_regs *regs)
1000 struct perf_sample_data data;
1001 struct cpu_hw_events *cpuc;
1002 struct perf_event *event;
1003 struct hw_perf_event *hwc;
1004 int idx, handled = 0;
1007 cpuc = &__get_cpu_var(cpu_hw_events);
1009 for (idx = 0; idx < x86_pmu.num_counters; idx++) {
1012 if (!test_bit(idx, cpuc->active_mask)) {
1013 /* catch in-flight IRQs */
1014 if (__test_and_clear_bit(idx, cpuc->running))
1019 event = cpuc->events[idx];
1022 WARN_ON_ONCE(hwc->idx != idx);
1024 /* it might be unflagged overflow */
1025 overflow = p4_pmu_clear_cccr_ovf(hwc);
1027 val = x86_perf_event_update(event);
1028 if (!overflow && (val & (1ULL << (x86_pmu.cntval_bits - 1))))
1031 handled += overflow;
1033 /* event overflow for sure */
1034 perf_sample_data_init(&data, 0, hwc->last_period);
1036 if (!x86_perf_event_set_period(event))
1040 if (perf_event_overflow(event, &data, regs))
1041 x86_pmu_stop(event, 0);
1045 inc_irq_stat(apic_perf_irqs);
1048 * When dealing with the unmasking of the LVTPC on P4 perf hw, it has
1049 * been observed that the OVF bit flag has to be cleared first _before_
1050 * the LVTPC can be unmasked.
1052 * The reason is the NMI line will continue to be asserted while the OVF
1053 * bit is set. This causes a second NMI to generate if the LVTPC is
1054 * unmasked before the OVF bit is cleared, leading to unknown NMI
1057 apic_write(APIC_LVTPC, APIC_DM_NMI);
1063 * swap thread specific fields according to a thread
1064 * we are going to run on
1066 static void p4_pmu_swap_config_ts(struct hw_perf_event *hwc, int cpu)
1071 * we either lucky and continue on same cpu or no HT support
1073 if (!p4_should_swap_ts(hwc->config, cpu))
1077 * the event is migrated from an another logical
1078 * cpu, so we need to swap thread specific flags
1081 escr = p4_config_unpack_escr(hwc->config);
1082 cccr = p4_config_unpack_cccr(hwc->config);
1084 if (p4_ht_thread(cpu)) {
1085 cccr &= ~P4_CCCR_OVF_PMI_T0;
1086 cccr |= P4_CCCR_OVF_PMI_T1;
1087 if (escr & P4_ESCR_T0_OS) {
1088 escr &= ~P4_ESCR_T0_OS;
1089 escr |= P4_ESCR_T1_OS;
1091 if (escr & P4_ESCR_T0_USR) {
1092 escr &= ~P4_ESCR_T0_USR;
1093 escr |= P4_ESCR_T1_USR;
1095 hwc->config = p4_config_pack_escr(escr);
1096 hwc->config |= p4_config_pack_cccr(cccr);
1097 hwc->config |= P4_CONFIG_HT;
1099 cccr &= ~P4_CCCR_OVF_PMI_T1;
1100 cccr |= P4_CCCR_OVF_PMI_T0;
1101 if (escr & P4_ESCR_T1_OS) {
1102 escr &= ~P4_ESCR_T1_OS;
1103 escr |= P4_ESCR_T0_OS;
1105 if (escr & P4_ESCR_T1_USR) {
1106 escr &= ~P4_ESCR_T1_USR;
1107 escr |= P4_ESCR_T0_USR;
1109 hwc->config = p4_config_pack_escr(escr);
1110 hwc->config |= p4_config_pack_cccr(cccr);
1111 hwc->config &= ~P4_CONFIG_HT;
1116 * ESCR address hashing is tricky, ESCRs are not sequential
1117 * in memory but all starts from MSR_P4_BSU_ESCR0 (0x03a0) and
1118 * the metric between any ESCRs is laid in range [0xa0,0xe1]
1120 * so we make ~70% filled hashtable
1123 #define P4_ESCR_MSR_BASE 0x000003a0
1124 #define P4_ESCR_MSR_MAX 0x000003e1
1125 #define P4_ESCR_MSR_TABLE_SIZE (P4_ESCR_MSR_MAX - P4_ESCR_MSR_BASE + 1)
1126 #define P4_ESCR_MSR_IDX(msr) (msr - P4_ESCR_MSR_BASE)
1127 #define P4_ESCR_MSR_TABLE_ENTRY(msr) [P4_ESCR_MSR_IDX(msr)] = msr
1129 static const unsigned int p4_escr_table[P4_ESCR_MSR_TABLE_SIZE] = {
1130 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_ALF_ESCR0),
1131 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_ALF_ESCR1),
1132 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_BPU_ESCR0),
1133 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_BPU_ESCR1),
1134 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_BSU_ESCR0),
1135 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_BSU_ESCR1),
1136 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_CRU_ESCR0),
1137 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_CRU_ESCR1),
1138 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_CRU_ESCR2),
1139 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_CRU_ESCR3),
1140 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_CRU_ESCR4),
1141 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_CRU_ESCR5),
1142 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_DAC_ESCR0),
1143 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_DAC_ESCR1),
1144 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_FIRM_ESCR0),
1145 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_FIRM_ESCR1),
1146 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_FLAME_ESCR0),
1147 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_FLAME_ESCR1),
1148 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_FSB_ESCR0),
1149 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_FSB_ESCR1),
1150 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_IQ_ESCR0),
1151 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_IQ_ESCR1),
1152 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_IS_ESCR0),
1153 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_IS_ESCR1),
1154 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_ITLB_ESCR0),
1155 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_ITLB_ESCR1),
1156 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_IX_ESCR0),
1157 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_IX_ESCR1),
1158 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_MOB_ESCR0),
1159 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_MOB_ESCR1),
1160 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_MS_ESCR0),
1161 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_MS_ESCR1),
1162 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_PMH_ESCR0),
1163 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_PMH_ESCR1),
1164 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_RAT_ESCR0),
1165 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_RAT_ESCR1),
1166 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_SAAT_ESCR0),
1167 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_SAAT_ESCR1),
1168 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_SSU_ESCR0),
1169 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_SSU_ESCR1),
1170 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_TBPU_ESCR0),
1171 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_TBPU_ESCR1),
1172 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_TC_ESCR0),
1173 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_TC_ESCR1),
1174 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_U2L_ESCR0),
1175 P4_ESCR_MSR_TABLE_ENTRY(MSR_P4_U2L_ESCR1),
1178 static int p4_get_escr_idx(unsigned int addr)
1180 unsigned int idx = P4_ESCR_MSR_IDX(addr);
1182 if (unlikely(idx >= P4_ESCR_MSR_TABLE_SIZE ||
1183 !p4_escr_table[idx] ||
1184 p4_escr_table[idx] != addr)) {
1185 WARN_ONCE(1, "P4 PMU: Wrong address passed: %x\n", addr);
1192 static int p4_next_cntr(int thread, unsigned long *used_mask,
1193 struct p4_event_bind *bind)
1197 for (i = 0; i < P4_CNTR_LIMIT; i++) {
1198 j = bind->cntr[thread][i];
1199 if (j != -1 && !test_bit(j, used_mask))
1206 static int p4_pmu_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign)
1208 unsigned long used_mask[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
1209 unsigned long escr_mask[BITS_TO_LONGS(P4_ESCR_MSR_TABLE_SIZE)];
1210 int cpu = smp_processor_id();
1211 struct hw_perf_event *hwc;
1212 struct p4_event_bind *bind;
1213 unsigned int i, thread, num;
1214 int cntr_idx, escr_idx;
1218 bitmap_zero(used_mask, X86_PMC_IDX_MAX);
1219 bitmap_zero(escr_mask, P4_ESCR_MSR_TABLE_SIZE);
1221 for (i = 0, num = n; i < n; i++, num--) {
1223 hwc = &cpuc->event_list[i]->hw;
1224 thread = p4_ht_thread(cpu);
1229 * It's possible to hit a circular lock
1230 * between original and alternative events
1231 * if both are scheduled already.
1236 bind = p4_config_get_bind(hwc->config);
1237 escr_idx = p4_get_escr_idx(bind->escr_msr[thread]);
1238 if (unlikely(escr_idx == -1))
1241 if (hwc->idx != -1 && !p4_should_swap_ts(hwc->config, cpu)) {
1242 cntr_idx = hwc->idx;
1244 assign[i] = hwc->idx;
1248 cntr_idx = p4_next_cntr(thread, used_mask, bind);
1249 if (cntr_idx == -1 || test_bit(escr_idx, escr_mask)) {
1251 * Check whether an event alias is still available.
1253 config_alias = p4_get_alias_event(hwc->config);
1256 hwc->config = config_alias;
1261 p4_pmu_swap_config_ts(hwc, cpu);
1263 assign[i] = cntr_idx;
1265 set_bit(cntr_idx, used_mask);
1266 set_bit(escr_idx, escr_mask);
1270 return num ? -EINVAL : 0;
1273 PMU_FORMAT_ATTR(cccr, "config:0-31" );
1274 PMU_FORMAT_ATTR(escr, "config:32-62");
1275 PMU_FORMAT_ATTR(ht, "config:63" );
1277 static struct attribute *intel_p4_formats_attr[] = {
1278 &format_attr_cccr.attr,
1279 &format_attr_escr.attr,
1280 &format_attr_ht.attr,
1284 static __initconst const struct x86_pmu p4_pmu = {
1285 .name = "Netburst P4/Xeon",
1286 .handle_irq = p4_pmu_handle_irq,
1287 .disable_all = p4_pmu_disable_all,
1288 .enable_all = p4_pmu_enable_all,
1289 .enable = p4_pmu_enable_event,
1290 .disable = p4_pmu_disable_event,
1291 .eventsel = MSR_P4_BPU_CCCR0,
1292 .perfctr = MSR_P4_BPU_PERFCTR0,
1293 .event_map = p4_pmu_event_map,
1294 .max_events = ARRAY_SIZE(p4_general_events),
1295 .get_event_constraints = x86_get_event_constraints,
1297 * IF HT disabled we may need to use all
1298 * ARCH_P4_MAX_CCCR counters simulaneously
1299 * though leave it restricted at moment assuming
1302 .num_counters = ARCH_P4_MAX_CCCR,
1304 .cntval_bits = ARCH_P4_CNTRVAL_BITS,
1305 .cntval_mask = ARCH_P4_CNTRVAL_MASK,
1306 .max_period = (1ULL << (ARCH_P4_CNTRVAL_BITS - 1)) - 1,
1307 .hw_config = p4_hw_config,
1308 .schedule_events = p4_pmu_schedule_events,
1310 * This handles erratum N15 in intel doc 249199-029,
1311 * the counter may not be updated correctly on write
1312 * so we need a second write operation to do the trick
1313 * (the official workaround didn't work)
1315 * the former idea is taken from OProfile code
1317 .perfctr_second_write = 1,
1319 .format_attrs = intel_p4_formats_attr,
1322 __init int p4_pmu_init(void)
1324 unsigned int low, high;
1326 /* If we get stripped -- indexing fails */
1327 BUILD_BUG_ON(ARCH_P4_MAX_CCCR > INTEL_PMC_MAX_GENERIC);
1329 rdmsr(MSR_IA32_MISC_ENABLE, low, high);
1330 if (!(low & (1 << 7))) {
1331 pr_cont("unsupported Netburst CPU model %d ",
1332 boot_cpu_data.x86_model);
1336 memcpy(hw_cache_event_ids, p4_hw_cache_event_ids,
1337 sizeof(hw_cache_event_ids));
1339 pr_cont("Netburst events, ");