1// SPDX-License-Identifier: GPL-2.0
2/* Nehalem-EX/Westmere-EX uncore support */
3#include "uncore.h"
4
5/* NHM-EX event control */
6#define NHMEX_PMON_CTL_EV_SEL_MASK 0x000000ff
7#define NHMEX_PMON_CTL_UMASK_MASK 0x0000ff00
8#define NHMEX_PMON_CTL_EN_BIT0 (1 << 0)
9#define NHMEX_PMON_CTL_EDGE_DET (1 << 18)
10#define NHMEX_PMON_CTL_PMI_EN (1 << 20)
11#define NHMEX_PMON_CTL_EN_BIT22 (1 << 22)
12#define NHMEX_PMON_CTL_INVERT (1 << 23)
13#define NHMEX_PMON_CTL_TRESH_MASK 0xff000000
14#define NHMEX_PMON_RAW_EVENT_MASK (NHMEX_PMON_CTL_EV_SEL_MASK | \
15 NHMEX_PMON_CTL_UMASK_MASK | \
16 NHMEX_PMON_CTL_EDGE_DET | \
17 NHMEX_PMON_CTL_INVERT | \
18 NHMEX_PMON_CTL_TRESH_MASK)
19
20/* NHM-EX Ubox */
21#define NHMEX_U_MSR_PMON_GLOBAL_CTL 0xc00
22#define NHMEX_U_MSR_PMON_CTR 0xc11
23#define NHMEX_U_MSR_PMON_EV_SEL 0xc10
24
25#define NHMEX_U_PMON_GLOBAL_EN (1 << 0)
26#define NHMEX_U_PMON_GLOBAL_PMI_CORE_SEL 0x0000001e
27#define NHMEX_U_PMON_GLOBAL_EN_ALL (1 << 28)
28#define NHMEX_U_PMON_GLOBAL_RST_ALL (1 << 29)
29#define NHMEX_U_PMON_GLOBAL_FRZ_ALL (1 << 31)
30
31#define NHMEX_U_PMON_RAW_EVENT_MASK \
32 (NHMEX_PMON_CTL_EV_SEL_MASK | \
33 NHMEX_PMON_CTL_EDGE_DET)
34
35/* NHM-EX Cbox */
36#define NHMEX_C0_MSR_PMON_GLOBAL_CTL 0xd00
37#define NHMEX_C0_MSR_PMON_CTR0 0xd11
38#define NHMEX_C0_MSR_PMON_EV_SEL0 0xd10
39#define NHMEX_C_MSR_OFFSET 0x20
40
41/* NHM-EX Bbox */
42#define NHMEX_B0_MSR_PMON_GLOBAL_CTL 0xc20
43#define NHMEX_B0_MSR_PMON_CTR0 0xc31
44#define NHMEX_B0_MSR_PMON_CTL0 0xc30
45#define NHMEX_B_MSR_OFFSET 0x40
46#define NHMEX_B0_MSR_MATCH 0xe45
47#define NHMEX_B0_MSR_MASK 0xe46
48#define NHMEX_B1_MSR_MATCH 0xe4d
49#define NHMEX_B1_MSR_MASK 0xe4e
50
51#define NHMEX_B_PMON_CTL_EN (1 << 0)
52#define NHMEX_B_PMON_CTL_EV_SEL_SHIFT 1
53#define NHMEX_B_PMON_CTL_EV_SEL_MASK \
54 (0x1f << NHMEX_B_PMON_CTL_EV_SEL_SHIFT)
55#define NHMEX_B_PMON_CTR_SHIFT 6
56#define NHMEX_B_PMON_CTR_MASK \
57 (0x3 << NHMEX_B_PMON_CTR_SHIFT)
58#define NHMEX_B_PMON_RAW_EVENT_MASK \
59 (NHMEX_B_PMON_CTL_EV_SEL_MASK | \
60 NHMEX_B_PMON_CTR_MASK)
61
62/* NHM-EX Sbox */
63#define NHMEX_S0_MSR_PMON_GLOBAL_CTL 0xc40
64#define NHMEX_S0_MSR_PMON_CTR0 0xc51
65#define NHMEX_S0_MSR_PMON_CTL0 0xc50
66#define NHMEX_S_MSR_OFFSET 0x80
67#define NHMEX_S0_MSR_MM_CFG 0xe48
68#define NHMEX_S0_MSR_MATCH 0xe49
69#define NHMEX_S0_MSR_MASK 0xe4a
70#define NHMEX_S1_MSR_MM_CFG 0xe58
71#define NHMEX_S1_MSR_MATCH 0xe59
72#define NHMEX_S1_MSR_MASK 0xe5a
73
74#define NHMEX_S_PMON_MM_CFG_EN (0x1ULL << 63)
75#define NHMEX_S_EVENT_TO_R_PROG_EV 0
76
77/* NHM-EX Mbox */
78#define NHMEX_M0_MSR_GLOBAL_CTL 0xca0
79#define NHMEX_M0_MSR_PMU_DSP 0xca5
80#define NHMEX_M0_MSR_PMU_ISS 0xca6
81#define NHMEX_M0_MSR_PMU_MAP 0xca7
82#define NHMEX_M0_MSR_PMU_MSC_THR 0xca8
83#define NHMEX_M0_MSR_PMU_PGT 0xca9
84#define NHMEX_M0_MSR_PMU_PLD 0xcaa
85#define NHMEX_M0_MSR_PMU_ZDP_CTL_FVC 0xcab
86#define NHMEX_M0_MSR_PMU_CTL0 0xcb0
87#define NHMEX_M0_MSR_PMU_CNT0 0xcb1
88#define NHMEX_M_MSR_OFFSET 0x40
89#define NHMEX_M0_MSR_PMU_MM_CFG 0xe54
90#define NHMEX_M1_MSR_PMU_MM_CFG 0xe5c
91
92#define NHMEX_M_PMON_MM_CFG_EN (1ULL << 63)
93#define NHMEX_M_PMON_ADDR_MATCH_MASK 0x3ffffffffULL
94#define NHMEX_M_PMON_ADDR_MASK_MASK 0x7ffffffULL
95#define NHMEX_M_PMON_ADDR_MASK_SHIFT 34
96
97#define NHMEX_M_PMON_CTL_EN (1 << 0)
98#define NHMEX_M_PMON_CTL_PMI_EN (1 << 1)
99#define NHMEX_M_PMON_CTL_COUNT_MODE_SHIFT 2
100#define NHMEX_M_PMON_CTL_COUNT_MODE_MASK \
101 (0x3 << NHMEX_M_PMON_CTL_COUNT_MODE_SHIFT)
102#define NHMEX_M_PMON_CTL_STORAGE_MODE_SHIFT 4
103#define NHMEX_M_PMON_CTL_STORAGE_MODE_MASK \
104 (0x3 << NHMEX_M_PMON_CTL_STORAGE_MODE_SHIFT)
105#define NHMEX_M_PMON_CTL_WRAP_MODE (1 << 6)
106#define NHMEX_M_PMON_CTL_FLAG_MODE (1 << 7)
107#define NHMEX_M_PMON_CTL_INC_SEL_SHIFT 9
108#define NHMEX_M_PMON_CTL_INC_SEL_MASK \
109 (0x1f << NHMEX_M_PMON_CTL_INC_SEL_SHIFT)
110#define NHMEX_M_PMON_CTL_SET_FLAG_SEL_SHIFT 19
111#define NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK \
112 (0x7 << NHMEX_M_PMON_CTL_SET_FLAG_SEL_SHIFT)
113#define NHMEX_M_PMON_RAW_EVENT_MASK \
114 (NHMEX_M_PMON_CTL_COUNT_MODE_MASK | \
115 NHMEX_M_PMON_CTL_STORAGE_MODE_MASK | \
116 NHMEX_M_PMON_CTL_WRAP_MODE | \
117 NHMEX_M_PMON_CTL_FLAG_MODE | \
118 NHMEX_M_PMON_CTL_INC_SEL_MASK | \
119 NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK)
120
121#define NHMEX_M_PMON_ZDP_CTL_FVC_MASK (((1 << 11) - 1) | (1 << 23))
122#define NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(n) (0x7ULL << (11 + 3 * (n)))
123
124#define WSMEX_M_PMON_ZDP_CTL_FVC_MASK (((1 << 12) - 1) | (1 << 24))
125#define WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(n) (0x7ULL << (12 + 3 * (n)))
126
127/*
128 * use the 9~13 bits to select event If the 7th bit is not set,
129 * otherwise use the 19~21 bits to select event.
130 */
131#define MBOX_INC_SEL(x) ((x) << NHMEX_M_PMON_CTL_INC_SEL_SHIFT)
132#define MBOX_SET_FLAG_SEL(x) (((x) << NHMEX_M_PMON_CTL_SET_FLAG_SEL_SHIFT) | \
133 NHMEX_M_PMON_CTL_FLAG_MODE)
134#define MBOX_INC_SEL_MASK (NHMEX_M_PMON_CTL_INC_SEL_MASK | \
135 NHMEX_M_PMON_CTL_FLAG_MODE)
136#define MBOX_SET_FLAG_SEL_MASK (NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK | \
137 NHMEX_M_PMON_CTL_FLAG_MODE)
138#define MBOX_INC_SEL_EXTAR_REG(c, r) \
139 EVENT_EXTRA_REG(MBOX_INC_SEL(c), NHMEX_M0_MSR_PMU_##r, \
140 MBOX_INC_SEL_MASK, (u64)-1, NHMEX_M_##r)
141#define MBOX_SET_FLAG_SEL_EXTRA_REG(c, r) \
142 EVENT_EXTRA_REG(MBOX_SET_FLAG_SEL(c), NHMEX_M0_MSR_PMU_##r, \
143 MBOX_SET_FLAG_SEL_MASK, \
144 (u64)-1, NHMEX_M_##r)
145
146/* NHM-EX Rbox */
147#define NHMEX_R_MSR_GLOBAL_CTL 0xe00
148#define NHMEX_R_MSR_PMON_CTL0 0xe10
149#define NHMEX_R_MSR_PMON_CNT0 0xe11
150#define NHMEX_R_MSR_OFFSET 0x20
151
152#define NHMEX_R_MSR_PORTN_QLX_CFG(n) \
153 ((n) < 4 ? (0xe0c + (n)) : (0xe2c + (n) - 4))
154#define NHMEX_R_MSR_PORTN_IPERF_CFG0(n) (0xe04 + (n))
155#define NHMEX_R_MSR_PORTN_IPERF_CFG1(n) (0xe24 + (n))
156#define NHMEX_R_MSR_PORTN_XBR_OFFSET(n) \
157 (((n) < 4 ? 0 : 0x10) + (n) * 4)
158#define NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(n) \
159 (0xe60 + NHMEX_R_MSR_PORTN_XBR_OFFSET(n))
160#define NHMEX_R_MSR_PORTN_XBR_SET1_MATCH(n) \
161 (NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(n) + 1)
162#define NHMEX_R_MSR_PORTN_XBR_SET1_MASK(n) \
163 (NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(n) + 2)
164#define NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(n) \
165 (0xe70 + NHMEX_R_MSR_PORTN_XBR_OFFSET(n))
166#define NHMEX_R_MSR_PORTN_XBR_SET2_MATCH(n) \
167 (NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(n) + 1)
168#define NHMEX_R_MSR_PORTN_XBR_SET2_MASK(n) \
169 (NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(n) + 2)
170
171#define NHMEX_R_PMON_CTL_EN (1 << 0)
172#define NHMEX_R_PMON_CTL_EV_SEL_SHIFT 1
173#define NHMEX_R_PMON_CTL_EV_SEL_MASK \
174 (0x1f << NHMEX_R_PMON_CTL_EV_SEL_SHIFT)
175#define NHMEX_R_PMON_CTL_PMI_EN (1 << 6)
176#define NHMEX_R_PMON_RAW_EVENT_MASK NHMEX_R_PMON_CTL_EV_SEL_MASK
177
178/* NHM-EX Wbox */
179#define NHMEX_W_MSR_GLOBAL_CTL 0xc80
180#define NHMEX_W_MSR_PMON_CNT0 0xc90
181#define NHMEX_W_MSR_PMON_EVT_SEL0 0xc91
182#define NHMEX_W_MSR_PMON_FIXED_CTR 0x394
183#define NHMEX_W_MSR_PMON_FIXED_CTL 0x395
184
185#define NHMEX_W_PMON_GLOBAL_FIXED_EN (1ULL << 31)
186
187#define __BITS_VALUE(x, i, n) ((typeof(x))(((x) >> ((i) * (n))) & \
188 ((1ULL << (n)) - 1)))
189
190DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
191DEFINE_UNCORE_FORMAT_ATTR(event5, event, "config:1-5");
192DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
193DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
194DEFINE_UNCORE_FORMAT_ATTR(inv, inv, "config:23");
195DEFINE_UNCORE_FORMAT_ATTR(thresh8, thresh, "config:24-31");
196DEFINE_UNCORE_FORMAT_ATTR(counter, counter, "config:6-7");
197DEFINE_UNCORE_FORMAT_ATTR(match, match, "config1:0-63");
198DEFINE_UNCORE_FORMAT_ATTR(mask, mask, "config2:0-63");
199
200static void nhmex_uncore_msr_init_box(struct intel_uncore_box *box)
201{
202 wrmsrl(NHMEX_U_MSR_PMON_GLOBAL_CTL, NHMEX_U_PMON_GLOBAL_EN_ALL);
203}
204
205static void nhmex_uncore_msr_exit_box(struct intel_uncore_box *box)
206{
207 wrmsrl(NHMEX_U_MSR_PMON_GLOBAL_CTL, val: 0);
208}
209
210static void nhmex_uncore_msr_disable_box(struct intel_uncore_box *box)
211{
212 unsigned msr = uncore_msr_box_ctl(box);
213 u64 config;
214
215 if (msr) {
216 rdmsrl(msr, config);
217 config &= ~((1ULL << uncore_num_counters(box)) - 1);
218 /* WBox has a fixed counter */
219 if (uncore_msr_fixed_ctl(box))
220 config &= ~NHMEX_W_PMON_GLOBAL_FIXED_EN;
221 wrmsrl(msr, val: config);
222 }
223}
224
225static void nhmex_uncore_msr_enable_box(struct intel_uncore_box *box)
226{
227 unsigned msr = uncore_msr_box_ctl(box);
228 u64 config;
229
230 if (msr) {
231 rdmsrl(msr, config);
232 config |= (1ULL << uncore_num_counters(box)) - 1;
233 /* WBox has a fixed counter */
234 if (uncore_msr_fixed_ctl(box))
235 config |= NHMEX_W_PMON_GLOBAL_FIXED_EN;
236 wrmsrl(msr, val: config);
237 }
238}
239
240static void nhmex_uncore_msr_disable_event(struct intel_uncore_box *box, struct perf_event *event)
241{
242 wrmsrl(msr: event->hw.config_base, val: 0);
243}
244
245static void nhmex_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
246{
247 struct hw_perf_event *hwc = &event->hw;
248
249 if (hwc->idx == UNCORE_PMC_IDX_FIXED)
250 wrmsrl(msr: hwc->config_base, NHMEX_PMON_CTL_EN_BIT0);
251 else if (box->pmu->type->event_mask & NHMEX_PMON_CTL_EN_BIT0)
252 wrmsrl(msr: hwc->config_base, val: hwc->config | NHMEX_PMON_CTL_EN_BIT22);
253 else
254 wrmsrl(msr: hwc->config_base, val: hwc->config | NHMEX_PMON_CTL_EN_BIT0);
255}
256
257#define NHMEX_UNCORE_OPS_COMMON_INIT() \
258 .init_box = nhmex_uncore_msr_init_box, \
259 .exit_box = nhmex_uncore_msr_exit_box, \
260 .disable_box = nhmex_uncore_msr_disable_box, \
261 .enable_box = nhmex_uncore_msr_enable_box, \
262 .disable_event = nhmex_uncore_msr_disable_event, \
263 .read_counter = uncore_msr_read_counter
264
265static struct intel_uncore_ops nhmex_uncore_ops = {
266 NHMEX_UNCORE_OPS_COMMON_INIT(),
267 .enable_event = nhmex_uncore_msr_enable_event,
268};
269
270static struct attribute *nhmex_uncore_ubox_formats_attr[] = {
271 &format_attr_event.attr,
272 &format_attr_edge.attr,
273 NULL,
274};
275
276static const struct attribute_group nhmex_uncore_ubox_format_group = {
277 .name = "format",
278 .attrs = nhmex_uncore_ubox_formats_attr,
279};
280
281static struct intel_uncore_type nhmex_uncore_ubox = {
282 .name = "ubox",
283 .num_counters = 1,
284 .num_boxes = 1,
285 .perf_ctr_bits = 48,
286 .event_ctl = NHMEX_U_MSR_PMON_EV_SEL,
287 .perf_ctr = NHMEX_U_MSR_PMON_CTR,
288 .event_mask = NHMEX_U_PMON_RAW_EVENT_MASK,
289 .box_ctl = NHMEX_U_MSR_PMON_GLOBAL_CTL,
290 .ops = &nhmex_uncore_ops,
291 .format_group = &nhmex_uncore_ubox_format_group
292};
293
294static struct attribute *nhmex_uncore_cbox_formats_attr[] = {
295 &format_attr_event.attr,
296 &format_attr_umask.attr,
297 &format_attr_edge.attr,
298 &format_attr_inv.attr,
299 &format_attr_thresh8.attr,
300 NULL,
301};
302
303static const struct attribute_group nhmex_uncore_cbox_format_group = {
304 .name = "format",
305 .attrs = nhmex_uncore_cbox_formats_attr,
306};
307
308/* msr offset for each instance of cbox */
309static u64 nhmex_cbox_msr_offsets[] = {
310 0x0, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x240, 0x2c0,
311};
312
313static struct intel_uncore_type nhmex_uncore_cbox = {
314 .name = "cbox",
315 .num_counters = 6,
316 .num_boxes = 10,
317 .perf_ctr_bits = 48,
318 .event_ctl = NHMEX_C0_MSR_PMON_EV_SEL0,
319 .perf_ctr = NHMEX_C0_MSR_PMON_CTR0,
320 .event_mask = NHMEX_PMON_RAW_EVENT_MASK,
321 .box_ctl = NHMEX_C0_MSR_PMON_GLOBAL_CTL,
322 .msr_offsets = nhmex_cbox_msr_offsets,
323 .pair_ctr_ctl = 1,
324 .ops = &nhmex_uncore_ops,
325 .format_group = &nhmex_uncore_cbox_format_group
326};
327
328static struct uncore_event_desc nhmex_uncore_wbox_events[] = {
329 INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0"),
330 { /* end: all zeroes */ },
331};
332
333static struct intel_uncore_type nhmex_uncore_wbox = {
334 .name = "wbox",
335 .num_counters = 4,
336 .num_boxes = 1,
337 .perf_ctr_bits = 48,
338 .event_ctl = NHMEX_W_MSR_PMON_CNT0,
339 .perf_ctr = NHMEX_W_MSR_PMON_EVT_SEL0,
340 .fixed_ctr = NHMEX_W_MSR_PMON_FIXED_CTR,
341 .fixed_ctl = NHMEX_W_MSR_PMON_FIXED_CTL,
342 .event_mask = NHMEX_PMON_RAW_EVENT_MASK,
343 .box_ctl = NHMEX_W_MSR_GLOBAL_CTL,
344 .pair_ctr_ctl = 1,
345 .event_descs = nhmex_uncore_wbox_events,
346 .ops = &nhmex_uncore_ops,
347 .format_group = &nhmex_uncore_cbox_format_group
348};
349
350static int nhmex_bbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
351{
352 struct hw_perf_event *hwc = &event->hw;
353 struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
354 struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
355 int ctr, ev_sel;
356
357 ctr = (hwc->config & NHMEX_B_PMON_CTR_MASK) >>
358 NHMEX_B_PMON_CTR_SHIFT;
359 ev_sel = (hwc->config & NHMEX_B_PMON_CTL_EV_SEL_MASK) >>
360 NHMEX_B_PMON_CTL_EV_SEL_SHIFT;
361
362 /* events that do not use the match/mask registers */
363 if ((ctr == 0 && ev_sel > 0x3) || (ctr == 1 && ev_sel > 0x6) ||
364 (ctr == 2 && ev_sel != 0x4) || ctr == 3)
365 return 0;
366
367 if (box->pmu->pmu_idx == 0)
368 reg1->reg = NHMEX_B0_MSR_MATCH;
369 else
370 reg1->reg = NHMEX_B1_MSR_MATCH;
371 reg1->idx = 0;
372 reg1->config = event->attr.config1;
373 reg2->config = event->attr.config2;
374 return 0;
375}
376
377static void nhmex_bbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
378{
379 struct hw_perf_event *hwc = &event->hw;
380 struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
381 struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
382
383 if (reg1->idx != EXTRA_REG_NONE) {
384 wrmsrl(msr: reg1->reg, val: reg1->config);
385 wrmsrl(msr: reg1->reg + 1, val: reg2->config);
386 }
387 wrmsrl(msr: hwc->config_base, NHMEX_PMON_CTL_EN_BIT0 |
388 (hwc->config & NHMEX_B_PMON_CTL_EV_SEL_MASK));
389}
390
391/*
392 * The Bbox has 4 counters, but each counter monitors different events.
393 * Use bits 6-7 in the event config to select counter.
394 */
395static struct event_constraint nhmex_uncore_bbox_constraints[] = {
396 EVENT_CONSTRAINT(0 , 1, 0xc0),
397 EVENT_CONSTRAINT(0x40, 2, 0xc0),
398 EVENT_CONSTRAINT(0x80, 4, 0xc0),
399 EVENT_CONSTRAINT(0xc0, 8, 0xc0),
400 EVENT_CONSTRAINT_END,
401};
402
403static struct attribute *nhmex_uncore_bbox_formats_attr[] = {
404 &format_attr_event5.attr,
405 &format_attr_counter.attr,
406 &format_attr_match.attr,
407 &format_attr_mask.attr,
408 NULL,
409};
410
411static const struct attribute_group nhmex_uncore_bbox_format_group = {
412 .name = "format",
413 .attrs = nhmex_uncore_bbox_formats_attr,
414};
415
416static struct intel_uncore_ops nhmex_uncore_bbox_ops = {
417 NHMEX_UNCORE_OPS_COMMON_INIT(),
418 .enable_event = nhmex_bbox_msr_enable_event,
419 .hw_config = nhmex_bbox_hw_config,
420 .get_constraint = uncore_get_constraint,
421 .put_constraint = uncore_put_constraint,
422};
423
424static struct intel_uncore_type nhmex_uncore_bbox = {
425 .name = "bbox",
426 .num_counters = 4,
427 .num_boxes = 2,
428 .perf_ctr_bits = 48,
429 .event_ctl = NHMEX_B0_MSR_PMON_CTL0,
430 .perf_ctr = NHMEX_B0_MSR_PMON_CTR0,
431 .event_mask = NHMEX_B_PMON_RAW_EVENT_MASK,
432 .box_ctl = NHMEX_B0_MSR_PMON_GLOBAL_CTL,
433 .msr_offset = NHMEX_B_MSR_OFFSET,
434 .pair_ctr_ctl = 1,
435 .num_shared_regs = 1,
436 .constraints = nhmex_uncore_bbox_constraints,
437 .ops = &nhmex_uncore_bbox_ops,
438 .format_group = &nhmex_uncore_bbox_format_group
439};
440
441static int nhmex_sbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
442{
443 struct hw_perf_event *hwc = &event->hw;
444 struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
445 struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
446
447 /* only TO_R_PROG_EV event uses the match/mask register */
448 if ((hwc->config & NHMEX_PMON_CTL_EV_SEL_MASK) !=
449 NHMEX_S_EVENT_TO_R_PROG_EV)
450 return 0;
451
452 if (box->pmu->pmu_idx == 0)
453 reg1->reg = NHMEX_S0_MSR_MM_CFG;
454 else
455 reg1->reg = NHMEX_S1_MSR_MM_CFG;
456 reg1->idx = 0;
457 reg1->config = event->attr.config1;
458 reg2->config = event->attr.config2;
459 return 0;
460}
461
462static void nhmex_sbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
463{
464 struct hw_perf_event *hwc = &event->hw;
465 struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
466 struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
467
468 if (reg1->idx != EXTRA_REG_NONE) {
469 wrmsrl(msr: reg1->reg, val: 0);
470 wrmsrl(msr: reg1->reg + 1, val: reg1->config);
471 wrmsrl(msr: reg1->reg + 2, val: reg2->config);
472 wrmsrl(msr: reg1->reg, NHMEX_S_PMON_MM_CFG_EN);
473 }
474 wrmsrl(msr: hwc->config_base, val: hwc->config | NHMEX_PMON_CTL_EN_BIT22);
475}
476
477static struct attribute *nhmex_uncore_sbox_formats_attr[] = {
478 &format_attr_event.attr,
479 &format_attr_umask.attr,
480 &format_attr_edge.attr,
481 &format_attr_inv.attr,
482 &format_attr_thresh8.attr,
483 &format_attr_match.attr,
484 &format_attr_mask.attr,
485 NULL,
486};
487
488static const struct attribute_group nhmex_uncore_sbox_format_group = {
489 .name = "format",
490 .attrs = nhmex_uncore_sbox_formats_attr,
491};
492
493static struct intel_uncore_ops nhmex_uncore_sbox_ops = {
494 NHMEX_UNCORE_OPS_COMMON_INIT(),
495 .enable_event = nhmex_sbox_msr_enable_event,
496 .hw_config = nhmex_sbox_hw_config,
497 .get_constraint = uncore_get_constraint,
498 .put_constraint = uncore_put_constraint,
499};
500
501static struct intel_uncore_type nhmex_uncore_sbox = {
502 .name = "sbox",
503 .num_counters = 4,
504 .num_boxes = 2,
505 .perf_ctr_bits = 48,
506 .event_ctl = NHMEX_S0_MSR_PMON_CTL0,
507 .perf_ctr = NHMEX_S0_MSR_PMON_CTR0,
508 .event_mask = NHMEX_PMON_RAW_EVENT_MASK,
509 .box_ctl = NHMEX_S0_MSR_PMON_GLOBAL_CTL,
510 .msr_offset = NHMEX_S_MSR_OFFSET,
511 .pair_ctr_ctl = 1,
512 .num_shared_regs = 1,
513 .ops = &nhmex_uncore_sbox_ops,
514 .format_group = &nhmex_uncore_sbox_format_group
515};
516
517enum {
518 EXTRA_REG_NHMEX_M_FILTER,
519 EXTRA_REG_NHMEX_M_DSP,
520 EXTRA_REG_NHMEX_M_ISS,
521 EXTRA_REG_NHMEX_M_MAP,
522 EXTRA_REG_NHMEX_M_MSC_THR,
523 EXTRA_REG_NHMEX_M_PGT,
524 EXTRA_REG_NHMEX_M_PLD,
525 EXTRA_REG_NHMEX_M_ZDP_CTL_FVC,
526};
527
528static struct extra_reg nhmex_uncore_mbox_extra_regs[] = {
529 MBOX_INC_SEL_EXTAR_REG(0x0, DSP),
530 MBOX_INC_SEL_EXTAR_REG(0x4, MSC_THR),
531 MBOX_INC_SEL_EXTAR_REG(0x5, MSC_THR),
532 MBOX_INC_SEL_EXTAR_REG(0x9, ISS),
533 /* event 0xa uses two extra registers */
534 MBOX_INC_SEL_EXTAR_REG(0xa, ISS),
535 MBOX_INC_SEL_EXTAR_REG(0xa, PLD),
536 MBOX_INC_SEL_EXTAR_REG(0xb, PLD),
537 /* events 0xd ~ 0x10 use the same extra register */
538 MBOX_INC_SEL_EXTAR_REG(0xd, ZDP_CTL_FVC),
539 MBOX_INC_SEL_EXTAR_REG(0xe, ZDP_CTL_FVC),
540 MBOX_INC_SEL_EXTAR_REG(0xf, ZDP_CTL_FVC),
541 MBOX_INC_SEL_EXTAR_REG(0x10, ZDP_CTL_FVC),
542 MBOX_INC_SEL_EXTAR_REG(0x16, PGT),
543 MBOX_SET_FLAG_SEL_EXTRA_REG(0x0, DSP),
544 MBOX_SET_FLAG_SEL_EXTRA_REG(0x1, ISS),
545 MBOX_SET_FLAG_SEL_EXTRA_REG(0x5, PGT),
546 MBOX_SET_FLAG_SEL_EXTRA_REG(0x6, MAP),
547 EVENT_EXTRA_END
548};
549
550/* Nehalem-EX or Westmere-EX ? */
551static bool uncore_nhmex;
552
553static bool nhmex_mbox_get_shared_reg(struct intel_uncore_box *box, int idx, u64 config)
554{
555 struct intel_uncore_extra_reg *er;
556 unsigned long flags;
557 bool ret = false;
558 u64 mask;
559
560 if (idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) {
561 er = &box->shared_regs[idx];
562 raw_spin_lock_irqsave(&er->lock, flags);
563 if (!atomic_read(v: &er->ref) || er->config == config) {
564 atomic_inc(v: &er->ref);
565 er->config = config;
566 ret = true;
567 }
568 raw_spin_unlock_irqrestore(&er->lock, flags);
569
570 return ret;
571 }
572 /*
573 * The ZDP_CTL_FVC MSR has 4 fields which are used to control
574 * events 0xd ~ 0x10. Besides these 4 fields, there are additional
575 * fields which are shared.
576 */
577 idx -= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
578 if (WARN_ON_ONCE(idx >= 4))
579 return false;
580
581 /* mask of the shared fields */
582 if (uncore_nhmex)
583 mask = NHMEX_M_PMON_ZDP_CTL_FVC_MASK;
584 else
585 mask = WSMEX_M_PMON_ZDP_CTL_FVC_MASK;
586 er = &box->shared_regs[EXTRA_REG_NHMEX_M_ZDP_CTL_FVC];
587
588 raw_spin_lock_irqsave(&er->lock, flags);
589 /* add mask of the non-shared field if it's in use */
590 if (__BITS_VALUE(atomic_read(&er->ref), idx, 8)) {
591 if (uncore_nhmex)
592 mask |= NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
593 else
594 mask |= WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
595 }
596
597 if (!atomic_read(v: &er->ref) || !((er->config ^ config) & mask)) {
598 atomic_add(i: 1 << (idx * 8), v: &er->ref);
599 if (uncore_nhmex)
600 mask = NHMEX_M_PMON_ZDP_CTL_FVC_MASK |
601 NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
602 else
603 mask = WSMEX_M_PMON_ZDP_CTL_FVC_MASK |
604 WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
605 er->config &= ~mask;
606 er->config |= (config & mask);
607 ret = true;
608 }
609 raw_spin_unlock_irqrestore(&er->lock, flags);
610
611 return ret;
612}
613
614static void nhmex_mbox_put_shared_reg(struct intel_uncore_box *box, int idx)
615{
616 struct intel_uncore_extra_reg *er;
617
618 if (idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) {
619 er = &box->shared_regs[idx];
620 atomic_dec(v: &er->ref);
621 return;
622 }
623
624 idx -= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
625 er = &box->shared_regs[EXTRA_REG_NHMEX_M_ZDP_CTL_FVC];
626 atomic_sub(i: 1 << (idx * 8), v: &er->ref);
627}
628
629static u64 nhmex_mbox_alter_er(struct perf_event *event, int new_idx, bool modify)
630{
631 struct hw_perf_event *hwc = &event->hw;
632 struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
633 u64 idx, orig_idx = __BITS_VALUE(reg1->idx, 0, 8);
634 u64 config = reg1->config;
635
636 /* get the non-shared control bits and shift them */
637 idx = orig_idx - EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
638 if (uncore_nhmex)
639 config &= NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
640 else
641 config &= WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
642 if (new_idx > orig_idx) {
643 idx = new_idx - orig_idx;
644 config <<= 3 * idx;
645 } else {
646 idx = orig_idx - new_idx;
647 config >>= 3 * idx;
648 }
649
650 /* add the shared control bits back */
651 if (uncore_nhmex)
652 config |= NHMEX_M_PMON_ZDP_CTL_FVC_MASK & reg1->config;
653 else
654 config |= WSMEX_M_PMON_ZDP_CTL_FVC_MASK & reg1->config;
655 config |= NHMEX_M_PMON_ZDP_CTL_FVC_MASK & reg1->config;
656 if (modify) {
657 /* adjust the main event selector */
658 if (new_idx > orig_idx)
659 hwc->config += idx << NHMEX_M_PMON_CTL_INC_SEL_SHIFT;
660 else
661 hwc->config -= idx << NHMEX_M_PMON_CTL_INC_SEL_SHIFT;
662 reg1->config = config;
663 reg1->idx = ~0xff | new_idx;
664 }
665 return config;
666}
667
668static struct event_constraint *
669nhmex_mbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
670{
671 struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
672 struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
673 int i, idx[2], alloc = 0;
674 u64 config1 = reg1->config;
675
676 idx[0] = __BITS_VALUE(reg1->idx, 0, 8);
677 idx[1] = __BITS_VALUE(reg1->idx, 1, 8);
678again:
679 for (i = 0; i < 2; i++) {
680 if (!uncore_box_is_fake(box) && (reg1->alloc & (0x1 << i)))
681 idx[i] = 0xff;
682
683 if (idx[i] == 0xff)
684 continue;
685
686 if (!nhmex_mbox_get_shared_reg(box, idx: idx[i],
687 __BITS_VALUE(config1, i, 32)))
688 goto fail;
689 alloc |= (0x1 << i);
690 }
691
692 /* for the match/mask registers */
693 if (reg2->idx != EXTRA_REG_NONE &&
694 (uncore_box_is_fake(box) || !reg2->alloc) &&
695 !nhmex_mbox_get_shared_reg(box, idx: reg2->idx, config: reg2->config))
696 goto fail;
697
698 /*
699 * If it's a fake box -- as per validate_{group,event}() we
700 * shouldn't touch event state and we can avoid doing so
701 * since both will only call get_event_constraints() once
702 * on each event, this avoids the need for reg->alloc.
703 */
704 if (!uncore_box_is_fake(box)) {
705 if (idx[0] != 0xff && idx[0] != __BITS_VALUE(reg1->idx, 0, 8))
706 nhmex_mbox_alter_er(event, new_idx: idx[0], modify: true);
707 reg1->alloc |= alloc;
708 if (reg2->idx != EXTRA_REG_NONE)
709 reg2->alloc = 1;
710 }
711 return NULL;
712fail:
713 if (idx[0] != 0xff && !(alloc & 0x1) &&
714 idx[0] >= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) {
715 /*
716 * events 0xd ~ 0x10 are functional identical, but are
717 * controlled by different fields in the ZDP_CTL_FVC
718 * register. If we failed to take one field, try the
719 * rest 3 choices.
720 */
721 BUG_ON(__BITS_VALUE(reg1->idx, 1, 8) != 0xff);
722 idx[0] -= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
723 idx[0] = (idx[0] + 1) % 4;
724 idx[0] += EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
725 if (idx[0] != __BITS_VALUE(reg1->idx, 0, 8)) {
726 config1 = nhmex_mbox_alter_er(event, new_idx: idx[0], modify: false);
727 goto again;
728 }
729 }
730
731 if (alloc & 0x1)
732 nhmex_mbox_put_shared_reg(box, idx: idx[0]);
733 if (alloc & 0x2)
734 nhmex_mbox_put_shared_reg(box, idx: idx[1]);
735 return &uncore_constraint_empty;
736}
737
738static void nhmex_mbox_put_constraint(struct intel_uncore_box *box, struct perf_event *event)
739{
740 struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
741 struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
742
743 if (uncore_box_is_fake(box))
744 return;
745
746 if (reg1->alloc & 0x1)
747 nhmex_mbox_put_shared_reg(box, __BITS_VALUE(reg1->idx, 0, 8));
748 if (reg1->alloc & 0x2)
749 nhmex_mbox_put_shared_reg(box, __BITS_VALUE(reg1->idx, 1, 8));
750 reg1->alloc = 0;
751
752 if (reg2->alloc) {
753 nhmex_mbox_put_shared_reg(box, idx: reg2->idx);
754 reg2->alloc = 0;
755 }
756}
757
758static int nhmex_mbox_extra_reg_idx(struct extra_reg *er)
759{
760 if (er->idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC)
761 return er->idx;
762 return er->idx + (er->event >> NHMEX_M_PMON_CTL_INC_SEL_SHIFT) - 0xd;
763}
764
765static int nhmex_mbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
766{
767 struct intel_uncore_type *type = box->pmu->type;
768 struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
769 struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
770 struct extra_reg *er;
771 unsigned msr;
772 int reg_idx = 0;
773 /*
774 * The mbox events may require 2 extra MSRs at the most. But only
775 * the lower 32 bits in these MSRs are significant, so we can use
776 * config1 to pass two MSRs' config.
777 */
778 for (er = nhmex_uncore_mbox_extra_regs; er->msr; er++) {
779 if (er->event != (event->hw.config & er->config_mask))
780 continue;
781 if (event->attr.config1 & ~er->valid_mask)
782 return -EINVAL;
783
784 msr = er->msr + type->msr_offset * box->pmu->pmu_idx;
785 if (WARN_ON_ONCE(msr >= 0xffff || er->idx >= 0xff))
786 return -EINVAL;
787
788 /* always use the 32~63 bits to pass the PLD config */
789 if (er->idx == EXTRA_REG_NHMEX_M_PLD)
790 reg_idx = 1;
791 else if (WARN_ON_ONCE(reg_idx > 0))
792 return -EINVAL;
793
794 reg1->idx &= ~(0xff << (reg_idx * 8));
795 reg1->reg &= ~(0xffff << (reg_idx * 16));
796 reg1->idx |= nhmex_mbox_extra_reg_idx(er) << (reg_idx * 8);
797 reg1->reg |= msr << (reg_idx * 16);
798 reg1->config = event->attr.config1;
799 reg_idx++;
800 }
801 /*
802 * The mbox only provides ability to perform address matching
803 * for the PLD events.
804 */
805 if (reg_idx == 2) {
806 reg2->idx = EXTRA_REG_NHMEX_M_FILTER;
807 if (event->attr.config2 & NHMEX_M_PMON_MM_CFG_EN)
808 reg2->config = event->attr.config2;
809 else
810 reg2->config = ~0ULL;
811 if (box->pmu->pmu_idx == 0)
812 reg2->reg = NHMEX_M0_MSR_PMU_MM_CFG;
813 else
814 reg2->reg = NHMEX_M1_MSR_PMU_MM_CFG;
815 }
816 return 0;
817}
818
819static u64 nhmex_mbox_shared_reg_config(struct intel_uncore_box *box, int idx)
820{
821 struct intel_uncore_extra_reg *er;
822 unsigned long flags;
823 u64 config;
824
825 if (idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC)
826 return box->shared_regs[idx].config;
827
828 er = &box->shared_regs[EXTRA_REG_NHMEX_M_ZDP_CTL_FVC];
829 raw_spin_lock_irqsave(&er->lock, flags);
830 config = er->config;
831 raw_spin_unlock_irqrestore(&er->lock, flags);
832 return config;
833}
834
835static void nhmex_mbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
836{
837 struct hw_perf_event *hwc = &event->hw;
838 struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
839 struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
840 int idx;
841
842 idx = __BITS_VALUE(reg1->idx, 0, 8);
843 if (idx != 0xff)
844 wrmsrl(__BITS_VALUE(reg1->reg, 0, 16),
845 val: nhmex_mbox_shared_reg_config(box, idx));
846 idx = __BITS_VALUE(reg1->idx, 1, 8);
847 if (idx != 0xff)
848 wrmsrl(__BITS_VALUE(reg1->reg, 1, 16),
849 val: nhmex_mbox_shared_reg_config(box, idx));
850
851 if (reg2->idx != EXTRA_REG_NONE) {
852 wrmsrl(msr: reg2->reg, val: 0);
853 if (reg2->config != ~0ULL) {
854 wrmsrl(msr: reg2->reg + 1,
855 val: reg2->config & NHMEX_M_PMON_ADDR_MATCH_MASK);
856 wrmsrl(msr: reg2->reg + 2, NHMEX_M_PMON_ADDR_MASK_MASK &
857 (reg2->config >> NHMEX_M_PMON_ADDR_MASK_SHIFT));
858 wrmsrl(msr: reg2->reg, NHMEX_M_PMON_MM_CFG_EN);
859 }
860 }
861
862 wrmsrl(msr: hwc->config_base, val: hwc->config | NHMEX_PMON_CTL_EN_BIT0);
863}
864
865DEFINE_UNCORE_FORMAT_ATTR(count_mode, count_mode, "config:2-3");
866DEFINE_UNCORE_FORMAT_ATTR(storage_mode, storage_mode, "config:4-5");
867DEFINE_UNCORE_FORMAT_ATTR(wrap_mode, wrap_mode, "config:6");
868DEFINE_UNCORE_FORMAT_ATTR(flag_mode, flag_mode, "config:7");
869DEFINE_UNCORE_FORMAT_ATTR(inc_sel, inc_sel, "config:9-13");
870DEFINE_UNCORE_FORMAT_ATTR(set_flag_sel, set_flag_sel, "config:19-21");
871DEFINE_UNCORE_FORMAT_ATTR(filter_cfg_en, filter_cfg_en, "config2:63");
872DEFINE_UNCORE_FORMAT_ATTR(filter_match, filter_match, "config2:0-33");
873DEFINE_UNCORE_FORMAT_ATTR(filter_mask, filter_mask, "config2:34-61");
874DEFINE_UNCORE_FORMAT_ATTR(dsp, dsp, "config1:0-31");
875DEFINE_UNCORE_FORMAT_ATTR(thr, thr, "config1:0-31");
876DEFINE_UNCORE_FORMAT_ATTR(fvc, fvc, "config1:0-31");
877DEFINE_UNCORE_FORMAT_ATTR(pgt, pgt, "config1:0-31");
878DEFINE_UNCORE_FORMAT_ATTR(map, map, "config1:0-31");
879DEFINE_UNCORE_FORMAT_ATTR(iss, iss, "config1:0-31");
880DEFINE_UNCORE_FORMAT_ATTR(pld, pld, "config1:32-63");
881
882static struct attribute *nhmex_uncore_mbox_formats_attr[] = {
883 &format_attr_count_mode.attr,
884 &format_attr_storage_mode.attr,
885 &format_attr_wrap_mode.attr,
886 &format_attr_flag_mode.attr,
887 &format_attr_inc_sel.attr,
888 &format_attr_set_flag_sel.attr,
889 &format_attr_filter_cfg_en.attr,
890 &format_attr_filter_match.attr,
891 &format_attr_filter_mask.attr,
892 &format_attr_dsp.attr,
893 &format_attr_thr.attr,
894 &format_attr_fvc.attr,
895 &format_attr_pgt.attr,
896 &format_attr_map.attr,
897 &format_attr_iss.attr,
898 &format_attr_pld.attr,
899 NULL,
900};
901
902static const struct attribute_group nhmex_uncore_mbox_format_group = {
903 .name = "format",
904 .attrs = nhmex_uncore_mbox_formats_attr,
905};
906
907static struct uncore_event_desc nhmex_uncore_mbox_events[] = {
908 INTEL_UNCORE_EVENT_DESC(bbox_cmds_read, "inc_sel=0xd,fvc=0x2800"),
909 INTEL_UNCORE_EVENT_DESC(bbox_cmds_write, "inc_sel=0xd,fvc=0x2820"),
910 { /* end: all zeroes */ },
911};
912
913static struct uncore_event_desc wsmex_uncore_mbox_events[] = {
914 INTEL_UNCORE_EVENT_DESC(bbox_cmds_read, "inc_sel=0xd,fvc=0x5000"),
915 INTEL_UNCORE_EVENT_DESC(bbox_cmds_write, "inc_sel=0xd,fvc=0x5040"),
916 { /* end: all zeroes */ },
917};
918
919static struct intel_uncore_ops nhmex_uncore_mbox_ops = {
920 NHMEX_UNCORE_OPS_COMMON_INIT(),
921 .enable_event = nhmex_mbox_msr_enable_event,
922 .hw_config = nhmex_mbox_hw_config,
923 .get_constraint = nhmex_mbox_get_constraint,
924 .put_constraint = nhmex_mbox_put_constraint,
925};
926
927static struct intel_uncore_type nhmex_uncore_mbox = {
928 .name = "mbox",
929 .num_counters = 6,
930 .num_boxes = 2,
931 .perf_ctr_bits = 48,
932 .event_ctl = NHMEX_M0_MSR_PMU_CTL0,
933 .perf_ctr = NHMEX_M0_MSR_PMU_CNT0,
934 .event_mask = NHMEX_M_PMON_RAW_EVENT_MASK,
935 .box_ctl = NHMEX_M0_MSR_GLOBAL_CTL,
936 .msr_offset = NHMEX_M_MSR_OFFSET,
937 .pair_ctr_ctl = 1,
938 .num_shared_regs = 8,
939 .event_descs = nhmex_uncore_mbox_events,
940 .ops = &nhmex_uncore_mbox_ops,
941 .format_group = &nhmex_uncore_mbox_format_group,
942};
943
944static void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event)
945{
946 struct hw_perf_event *hwc = &event->hw;
947 struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
948
949 /* adjust the main event selector and extra register index */
950 if (reg1->idx % 2) {
951 reg1->idx--;
952 hwc->config -= 1 << NHMEX_R_PMON_CTL_EV_SEL_SHIFT;
953 } else {
954 reg1->idx++;
955 hwc->config += 1 << NHMEX_R_PMON_CTL_EV_SEL_SHIFT;
956 }
957
958 /* adjust extra register config */
959 switch (reg1->idx % 6) {
960 case 2:
961 /* shift the 8~15 bits to the 0~7 bits */
962 reg1->config >>= 8;
963 break;
964 case 3:
965 /* shift the 0~7 bits to the 8~15 bits */
966 reg1->config <<= 8;
967 break;
968 }
969}
970
971/*
972 * Each rbox has 4 event set which monitor PQI port 0~3 or 4~7.
973 * An event set consists of 6 events, the 3rd and 4th events in
974 * an event set use the same extra register. So an event set uses
975 * 5 extra registers.
976 */
977static struct event_constraint *
978nhmex_rbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
979{
980 struct hw_perf_event *hwc = &event->hw;
981 struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
982 struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
983 struct intel_uncore_extra_reg *er;
984 unsigned long flags;
985 int idx, er_idx;
986 u64 config1;
987 bool ok = false;
988
989 if (!uncore_box_is_fake(box) && reg1->alloc)
990 return NULL;
991
992 idx = reg1->idx % 6;
993 config1 = reg1->config;
994again:
995 er_idx = idx;
996 /* the 3rd and 4th events use the same extra register */
997 if (er_idx > 2)
998 er_idx--;
999 er_idx += (reg1->idx / 6) * 5;
1000
1001 er = &box->shared_regs[er_idx];
1002 raw_spin_lock_irqsave(&er->lock, flags);
1003 if (idx < 2) {
1004 if (!atomic_read(v: &er->ref) || er->config == reg1->config) {
1005 atomic_inc(v: &er->ref);
1006 er->config = reg1->config;
1007 ok = true;
1008 }
1009 } else if (idx == 2 || idx == 3) {
1010 /*
1011 * these two events use different fields in a extra register,
1012 * the 0~7 bits and the 8~15 bits respectively.
1013 */
1014 u64 mask = 0xff << ((idx - 2) * 8);
1015 if (!__BITS_VALUE(atomic_read(&er->ref), idx - 2, 8) ||
1016 !((er->config ^ config1) & mask)) {
1017 atomic_add(i: 1 << ((idx - 2) * 8), v: &er->ref);
1018 er->config &= ~mask;
1019 er->config |= config1 & mask;
1020 ok = true;
1021 }
1022 } else {
1023 if (!atomic_read(v: &er->ref) ||
1024 (er->config == (hwc->config >> 32) &&
1025 er->config1 == reg1->config &&
1026 er->config2 == reg2->config)) {
1027 atomic_inc(v: &er->ref);
1028 er->config = (hwc->config >> 32);
1029 er->config1 = reg1->config;
1030 er->config2 = reg2->config;
1031 ok = true;
1032 }
1033 }
1034 raw_spin_unlock_irqrestore(&er->lock, flags);
1035
1036 if (!ok) {
1037 /*
1038 * The Rbox events are always in pairs. The paired
1039 * events are functional identical, but use different
1040 * extra registers. If we failed to take an extra
1041 * register, try the alternative.
1042 */
1043 idx ^= 1;
1044 if (idx != reg1->idx % 6) {
1045 if (idx == 2)
1046 config1 >>= 8;
1047 else if (idx == 3)
1048 config1 <<= 8;
1049 goto again;
1050 }
1051 } else {
1052 if (!uncore_box_is_fake(box)) {
1053 if (idx != reg1->idx % 6)
1054 nhmex_rbox_alter_er(box, event);
1055 reg1->alloc = 1;
1056 }
1057 return NULL;
1058 }
1059 return &uncore_constraint_empty;
1060}
1061
1062static void nhmex_rbox_put_constraint(struct intel_uncore_box *box, struct perf_event *event)
1063{
1064 struct intel_uncore_extra_reg *er;
1065 struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
1066 int idx, er_idx;
1067
1068 if (uncore_box_is_fake(box) || !reg1->alloc)
1069 return;
1070
1071 idx = reg1->idx % 6;
1072 er_idx = idx;
1073 if (er_idx > 2)
1074 er_idx--;
1075 er_idx += (reg1->idx / 6) * 5;
1076
1077 er = &box->shared_regs[er_idx];
1078 if (idx == 2 || idx == 3)
1079 atomic_sub(i: 1 << ((idx - 2) * 8), v: &er->ref);
1080 else
1081 atomic_dec(v: &er->ref);
1082
1083 reg1->alloc = 0;
1084}
1085
1086static int nhmex_rbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
1087{
1088 struct hw_perf_event *hwc = &event->hw;
1089 struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
1090 struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
1091 int idx;
1092
1093 idx = (event->hw.config & NHMEX_R_PMON_CTL_EV_SEL_MASK) >>
1094 NHMEX_R_PMON_CTL_EV_SEL_SHIFT;
1095 if (idx >= 0x18)
1096 return -EINVAL;
1097
1098 reg1->idx = idx;
1099 reg1->config = event->attr.config1;
1100
1101 switch (idx % 6) {
1102 case 4:
1103 case 5:
1104 hwc->config |= event->attr.config & (~0ULL << 32);
1105 reg2->config = event->attr.config2;
1106 break;
1107 }
1108 return 0;
1109}
1110
1111static void nhmex_rbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
1112{
1113 struct hw_perf_event *hwc = &event->hw;
1114 struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
1115 struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
1116 int idx, port;
1117
1118 idx = reg1->idx;
1119 port = idx / 6 + box->pmu->pmu_idx * 4;
1120
1121 switch (idx % 6) {
1122 case 0:
1123 wrmsrl(NHMEX_R_MSR_PORTN_IPERF_CFG0(port), val: reg1->config);
1124 break;
1125 case 1:
1126 wrmsrl(NHMEX_R_MSR_PORTN_IPERF_CFG1(port), val: reg1->config);
1127 break;
1128 case 2:
1129 case 3:
1130 wrmsrl(NHMEX_R_MSR_PORTN_QLX_CFG(port),
1131 val: uncore_shared_reg_config(box, idx: 2 + (idx / 6) * 5));
1132 break;
1133 case 4:
1134 wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(port),
1135 val: hwc->config >> 32);
1136 wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET1_MATCH(port), val: reg1->config);
1137 wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET1_MASK(port), val: reg2->config);
1138 break;
1139 case 5:
1140 wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(port),
1141 val: hwc->config >> 32);
1142 wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET2_MATCH(port), val: reg1->config);
1143 wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET2_MASK(port), val: reg2->config);
1144 break;
1145 }
1146
1147 wrmsrl(msr: hwc->config_base, NHMEX_PMON_CTL_EN_BIT0 |
1148 (hwc->config & NHMEX_R_PMON_CTL_EV_SEL_MASK));
1149}
1150
1151DEFINE_UNCORE_FORMAT_ATTR(xbr_mm_cfg, xbr_mm_cfg, "config:32-63");
1152DEFINE_UNCORE_FORMAT_ATTR(xbr_match, xbr_match, "config1:0-63");
1153DEFINE_UNCORE_FORMAT_ATTR(xbr_mask, xbr_mask, "config2:0-63");
1154DEFINE_UNCORE_FORMAT_ATTR(qlx_cfg, qlx_cfg, "config1:0-15");
1155DEFINE_UNCORE_FORMAT_ATTR(iperf_cfg, iperf_cfg, "config1:0-31");
1156
1157static struct attribute *nhmex_uncore_rbox_formats_attr[] = {
1158 &format_attr_event5.attr,
1159 &format_attr_xbr_mm_cfg.attr,
1160 &format_attr_xbr_match.attr,
1161 &format_attr_xbr_mask.attr,
1162 &format_attr_qlx_cfg.attr,
1163 &format_attr_iperf_cfg.attr,
1164 NULL,
1165};
1166
1167static const struct attribute_group nhmex_uncore_rbox_format_group = {
1168 .name = "format",
1169 .attrs = nhmex_uncore_rbox_formats_attr,
1170};
1171
1172static struct uncore_event_desc nhmex_uncore_rbox_events[] = {
1173 INTEL_UNCORE_EVENT_DESC(qpi0_flit_send, "event=0x0,iperf_cfg=0x80000000"),
1174 INTEL_UNCORE_EVENT_DESC(qpi1_filt_send, "event=0x6,iperf_cfg=0x80000000"),
1175 INTEL_UNCORE_EVENT_DESC(qpi0_idle_filt, "event=0x0,iperf_cfg=0x40000000"),
1176 INTEL_UNCORE_EVENT_DESC(qpi1_idle_filt, "event=0x6,iperf_cfg=0x40000000"),
1177 INTEL_UNCORE_EVENT_DESC(qpi0_date_response, "event=0x0,iperf_cfg=0xc4"),
1178 INTEL_UNCORE_EVENT_DESC(qpi1_date_response, "event=0x6,iperf_cfg=0xc4"),
1179 { /* end: all zeroes */ },
1180};
1181
1182static struct intel_uncore_ops nhmex_uncore_rbox_ops = {
1183 NHMEX_UNCORE_OPS_COMMON_INIT(),
1184 .enable_event = nhmex_rbox_msr_enable_event,
1185 .hw_config = nhmex_rbox_hw_config,
1186 .get_constraint = nhmex_rbox_get_constraint,
1187 .put_constraint = nhmex_rbox_put_constraint,
1188};
1189
1190static struct intel_uncore_type nhmex_uncore_rbox = {
1191 .name = "rbox",
1192 .num_counters = 8,
1193 .num_boxes = 2,
1194 .perf_ctr_bits = 48,
1195 .event_ctl = NHMEX_R_MSR_PMON_CTL0,
1196 .perf_ctr = NHMEX_R_MSR_PMON_CNT0,
1197 .event_mask = NHMEX_R_PMON_RAW_EVENT_MASK,
1198 .box_ctl = NHMEX_R_MSR_GLOBAL_CTL,
1199 .msr_offset = NHMEX_R_MSR_OFFSET,
1200 .pair_ctr_ctl = 1,
1201 .num_shared_regs = 20,
1202 .event_descs = nhmex_uncore_rbox_events,
1203 .ops = &nhmex_uncore_rbox_ops,
1204 .format_group = &nhmex_uncore_rbox_format_group
1205};
1206
1207static struct intel_uncore_type *nhmex_msr_uncores[] = {
1208 &nhmex_uncore_ubox,
1209 &nhmex_uncore_cbox,
1210 &nhmex_uncore_bbox,
1211 &nhmex_uncore_sbox,
1212 &nhmex_uncore_mbox,
1213 &nhmex_uncore_rbox,
1214 &nhmex_uncore_wbox,
1215 NULL,
1216};
1217
1218void nhmex_uncore_cpu_init(void)
1219{
1220 if (boot_cpu_data.x86_model == 46)
1221 uncore_nhmex = true;
1222 else
1223 nhmex_uncore_mbox.event_descs = wsmex_uncore_mbox_events;
1224 if (nhmex_uncore_cbox.num_boxes > topology_num_cores_per_package())
1225 nhmex_uncore_cbox.num_boxes = topology_num_cores_per_package();
1226 uncore_msr_uncores = nhmex_msr_uncores;
1227}
1228/* end of Nehalem-EX uncore support */
1229

source code of linux/arch/x86/events/intel/uncore_nhmex.c