xref: /linux/arch/x86/events/intel/uncore_snb.c (revision 17cfcb68af3bc7d5e8ae08779b1853310a2949f3)
1 // SPDX-License-Identifier: GPL-2.0
2 /* Nehalem/SandBridge/Haswell/Broadwell/Skylake uncore support */
3 #include "uncore.h"
4 
5 /* Uncore IMC PCI IDs */
6 #define PCI_DEVICE_ID_INTEL_SNB_IMC		0x0100
7 #define PCI_DEVICE_ID_INTEL_IVB_IMC		0x0154
8 #define PCI_DEVICE_ID_INTEL_IVB_E3_IMC		0x0150
9 #define PCI_DEVICE_ID_INTEL_HSW_IMC		0x0c00
10 #define PCI_DEVICE_ID_INTEL_HSW_U_IMC		0x0a04
11 #define PCI_DEVICE_ID_INTEL_BDW_IMC		0x1604
12 #define PCI_DEVICE_ID_INTEL_SKL_U_IMC		0x1904
13 #define PCI_DEVICE_ID_INTEL_SKL_Y_IMC		0x190c
14 #define PCI_DEVICE_ID_INTEL_SKL_HD_IMC		0x1900
15 #define PCI_DEVICE_ID_INTEL_SKL_HQ_IMC		0x1910
16 #define PCI_DEVICE_ID_INTEL_SKL_SD_IMC		0x190f
17 #define PCI_DEVICE_ID_INTEL_SKL_SQ_IMC		0x191f
18 #define PCI_DEVICE_ID_INTEL_KBL_Y_IMC		0x590c
19 #define PCI_DEVICE_ID_INTEL_KBL_U_IMC		0x5904
20 #define PCI_DEVICE_ID_INTEL_KBL_UQ_IMC		0x5914
21 #define PCI_DEVICE_ID_INTEL_KBL_SD_IMC		0x590f
22 #define PCI_DEVICE_ID_INTEL_KBL_SQ_IMC		0x591f
23 #define PCI_DEVICE_ID_INTEL_KBL_HQ_IMC		0x5910
24 #define PCI_DEVICE_ID_INTEL_KBL_WQ_IMC		0x5918
25 #define PCI_DEVICE_ID_INTEL_CFL_2U_IMC		0x3ecc
26 #define PCI_DEVICE_ID_INTEL_CFL_4U_IMC		0x3ed0
27 #define PCI_DEVICE_ID_INTEL_CFL_4H_IMC		0x3e10
28 #define PCI_DEVICE_ID_INTEL_CFL_6H_IMC		0x3ec4
29 #define PCI_DEVICE_ID_INTEL_CFL_2S_D_IMC	0x3e0f
30 #define PCI_DEVICE_ID_INTEL_CFL_4S_D_IMC	0x3e1f
31 #define PCI_DEVICE_ID_INTEL_CFL_6S_D_IMC	0x3ec2
32 #define PCI_DEVICE_ID_INTEL_CFL_8S_D_IMC	0x3e30
33 #define PCI_DEVICE_ID_INTEL_CFL_4S_W_IMC	0x3e18
34 #define PCI_DEVICE_ID_INTEL_CFL_6S_W_IMC	0x3ec6
35 #define PCI_DEVICE_ID_INTEL_CFL_8S_W_IMC	0x3e31
36 #define PCI_DEVICE_ID_INTEL_CFL_4S_S_IMC	0x3e33
37 #define PCI_DEVICE_ID_INTEL_CFL_6S_S_IMC	0x3eca
38 #define PCI_DEVICE_ID_INTEL_CFL_8S_S_IMC	0x3e32
39 #define PCI_DEVICE_ID_INTEL_AML_YD_IMC		0x590c
40 #define PCI_DEVICE_ID_INTEL_AML_YQ_IMC		0x590d
41 #define PCI_DEVICE_ID_INTEL_WHL_UQ_IMC		0x3ed0
42 #define PCI_DEVICE_ID_INTEL_WHL_4_UQ_IMC	0x3e34
43 #define PCI_DEVICE_ID_INTEL_WHL_UD_IMC		0x3e35
44 #define PCI_DEVICE_ID_INTEL_ICL_U_IMC		0x8a02
45 #define PCI_DEVICE_ID_INTEL_ICL_U2_IMC		0x8a12
46 
47 
48 /* SNB event control */
49 #define SNB_UNC_CTL_EV_SEL_MASK			0x000000ff
50 #define SNB_UNC_CTL_UMASK_MASK			0x0000ff00
51 #define SNB_UNC_CTL_EDGE_DET			(1 << 18)
52 #define SNB_UNC_CTL_EN				(1 << 22)
53 #define SNB_UNC_CTL_INVERT			(1 << 23)
54 #define SNB_UNC_CTL_CMASK_MASK			0x1f000000
55 #define NHM_UNC_CTL_CMASK_MASK			0xff000000
56 #define NHM_UNC_FIXED_CTR_CTL_EN		(1 << 0)
57 
58 #define SNB_UNC_RAW_EVENT_MASK			(SNB_UNC_CTL_EV_SEL_MASK | \
59 						 SNB_UNC_CTL_UMASK_MASK | \
60 						 SNB_UNC_CTL_EDGE_DET | \
61 						 SNB_UNC_CTL_INVERT | \
62 						 SNB_UNC_CTL_CMASK_MASK)
63 
64 #define NHM_UNC_RAW_EVENT_MASK			(SNB_UNC_CTL_EV_SEL_MASK | \
65 						 SNB_UNC_CTL_UMASK_MASK | \
66 						 SNB_UNC_CTL_EDGE_DET | \
67 						 SNB_UNC_CTL_INVERT | \
68 						 NHM_UNC_CTL_CMASK_MASK)
69 
70 /* SNB global control register */
71 #define SNB_UNC_PERF_GLOBAL_CTL                 0x391
72 #define SNB_UNC_FIXED_CTR_CTRL                  0x394
73 #define SNB_UNC_FIXED_CTR                       0x395
74 
75 /* SNB uncore global control */
76 #define SNB_UNC_GLOBAL_CTL_CORE_ALL             ((1 << 4) - 1)
77 #define SNB_UNC_GLOBAL_CTL_EN                   (1 << 29)
78 
79 /* SNB Cbo register */
80 #define SNB_UNC_CBO_0_PERFEVTSEL0               0x700
81 #define SNB_UNC_CBO_0_PER_CTR0                  0x706
82 #define SNB_UNC_CBO_MSR_OFFSET                  0x10
83 
84 /* SNB ARB register */
85 #define SNB_UNC_ARB_PER_CTR0			0x3b0
86 #define SNB_UNC_ARB_PERFEVTSEL0			0x3b2
87 #define SNB_UNC_ARB_MSR_OFFSET			0x10
88 
89 /* NHM global control register */
90 #define NHM_UNC_PERF_GLOBAL_CTL                 0x391
91 #define NHM_UNC_FIXED_CTR                       0x394
92 #define NHM_UNC_FIXED_CTR_CTRL                  0x395
93 
94 /* NHM uncore global control */
95 #define NHM_UNC_GLOBAL_CTL_EN_PC_ALL            ((1ULL << 8) - 1)
96 #define NHM_UNC_GLOBAL_CTL_EN_FC                (1ULL << 32)
97 
98 /* NHM uncore register */
99 #define NHM_UNC_PERFEVTSEL0                     0x3c0
100 #define NHM_UNC_UNCORE_PMC0                     0x3b0
101 
102 /* SKL uncore global control */
103 #define SKL_UNC_PERF_GLOBAL_CTL			0xe01
104 #define SKL_UNC_GLOBAL_CTL_CORE_ALL		((1 << 5) - 1)
105 
106 /* ICL Cbo register */
107 #define ICL_UNC_CBO_CONFIG			0x396
108 #define ICL_UNC_NUM_CBO_MASK			0xf
109 #define ICL_UNC_CBO_0_PER_CTR0			0x702
110 #define ICL_UNC_CBO_MSR_OFFSET			0x8
111 
112 DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
113 DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
114 DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
115 DEFINE_UNCORE_FORMAT_ATTR(inv, inv, "config:23");
116 DEFINE_UNCORE_FORMAT_ATTR(cmask5, cmask, "config:24-28");
117 DEFINE_UNCORE_FORMAT_ATTR(cmask8, cmask, "config:24-31");
118 
119 /* Sandy Bridge uncore support */
120 static void snb_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
121 {
122 	struct hw_perf_event *hwc = &event->hw;
123 
124 	if (hwc->idx < UNCORE_PMC_IDX_FIXED)
125 		wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN);
126 	else
127 		wrmsrl(hwc->config_base, SNB_UNC_CTL_EN);
128 }
129 
130 static void snb_uncore_msr_disable_event(struct intel_uncore_box *box, struct perf_event *event)
131 {
132 	wrmsrl(event->hw.config_base, 0);
133 }
134 
135 static void snb_uncore_msr_init_box(struct intel_uncore_box *box)
136 {
137 	if (box->pmu->pmu_idx == 0) {
138 		wrmsrl(SNB_UNC_PERF_GLOBAL_CTL,
139 			SNB_UNC_GLOBAL_CTL_EN | SNB_UNC_GLOBAL_CTL_CORE_ALL);
140 	}
141 }
142 
143 static void snb_uncore_msr_enable_box(struct intel_uncore_box *box)
144 {
145 	wrmsrl(SNB_UNC_PERF_GLOBAL_CTL,
146 		SNB_UNC_GLOBAL_CTL_EN | SNB_UNC_GLOBAL_CTL_CORE_ALL);
147 }
148 
149 static void snb_uncore_msr_exit_box(struct intel_uncore_box *box)
150 {
151 	if (box->pmu->pmu_idx == 0)
152 		wrmsrl(SNB_UNC_PERF_GLOBAL_CTL, 0);
153 }
154 
155 static struct uncore_event_desc snb_uncore_events[] = {
156 	INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0x00"),
157 	{ /* end: all zeroes */ },
158 };
159 
160 static struct attribute *snb_uncore_formats_attr[] = {
161 	&format_attr_event.attr,
162 	&format_attr_umask.attr,
163 	&format_attr_edge.attr,
164 	&format_attr_inv.attr,
165 	&format_attr_cmask5.attr,
166 	NULL,
167 };
168 
169 static const struct attribute_group snb_uncore_format_group = {
170 	.name		= "format",
171 	.attrs		= snb_uncore_formats_attr,
172 };
173 
174 static struct intel_uncore_ops snb_uncore_msr_ops = {
175 	.init_box	= snb_uncore_msr_init_box,
176 	.enable_box	= snb_uncore_msr_enable_box,
177 	.exit_box	= snb_uncore_msr_exit_box,
178 	.disable_event	= snb_uncore_msr_disable_event,
179 	.enable_event	= snb_uncore_msr_enable_event,
180 	.read_counter	= uncore_msr_read_counter,
181 };
182 
183 static struct event_constraint snb_uncore_arb_constraints[] = {
184 	UNCORE_EVENT_CONSTRAINT(0x80, 0x1),
185 	UNCORE_EVENT_CONSTRAINT(0x83, 0x1),
186 	EVENT_CONSTRAINT_END
187 };
188 
189 static struct intel_uncore_type snb_uncore_cbox = {
190 	.name		= "cbox",
191 	.num_counters   = 2,
192 	.num_boxes	= 4,
193 	.perf_ctr_bits	= 44,
194 	.fixed_ctr_bits	= 48,
195 	.perf_ctr	= SNB_UNC_CBO_0_PER_CTR0,
196 	.event_ctl	= SNB_UNC_CBO_0_PERFEVTSEL0,
197 	.fixed_ctr	= SNB_UNC_FIXED_CTR,
198 	.fixed_ctl	= SNB_UNC_FIXED_CTR_CTRL,
199 	.single_fixed	= 1,
200 	.event_mask	= SNB_UNC_RAW_EVENT_MASK,
201 	.msr_offset	= SNB_UNC_CBO_MSR_OFFSET,
202 	.ops		= &snb_uncore_msr_ops,
203 	.format_group	= &snb_uncore_format_group,
204 	.event_descs	= snb_uncore_events,
205 };
206 
207 static struct intel_uncore_type snb_uncore_arb = {
208 	.name		= "arb",
209 	.num_counters   = 2,
210 	.num_boxes	= 1,
211 	.perf_ctr_bits	= 44,
212 	.perf_ctr	= SNB_UNC_ARB_PER_CTR0,
213 	.event_ctl	= SNB_UNC_ARB_PERFEVTSEL0,
214 	.event_mask	= SNB_UNC_RAW_EVENT_MASK,
215 	.msr_offset	= SNB_UNC_ARB_MSR_OFFSET,
216 	.constraints	= snb_uncore_arb_constraints,
217 	.ops		= &snb_uncore_msr_ops,
218 	.format_group	= &snb_uncore_format_group,
219 };
220 
221 static struct intel_uncore_type *snb_msr_uncores[] = {
222 	&snb_uncore_cbox,
223 	&snb_uncore_arb,
224 	NULL,
225 };
226 
227 void snb_uncore_cpu_init(void)
228 {
229 	uncore_msr_uncores = snb_msr_uncores;
230 	if (snb_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
231 		snb_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
232 }
233 
234 static void skl_uncore_msr_init_box(struct intel_uncore_box *box)
235 {
236 	if (box->pmu->pmu_idx == 0) {
237 		wrmsrl(SKL_UNC_PERF_GLOBAL_CTL,
238 			SNB_UNC_GLOBAL_CTL_EN | SKL_UNC_GLOBAL_CTL_CORE_ALL);
239 	}
240 
241 	/* The 8th CBOX has different MSR space */
242 	if (box->pmu->pmu_idx == 7)
243 		__set_bit(UNCORE_BOX_FLAG_CFL8_CBOX_MSR_OFFS, &box->flags);
244 }
245 
246 static void skl_uncore_msr_enable_box(struct intel_uncore_box *box)
247 {
248 	wrmsrl(SKL_UNC_PERF_GLOBAL_CTL,
249 		SNB_UNC_GLOBAL_CTL_EN | SKL_UNC_GLOBAL_CTL_CORE_ALL);
250 }
251 
252 static void skl_uncore_msr_exit_box(struct intel_uncore_box *box)
253 {
254 	if (box->pmu->pmu_idx == 0)
255 		wrmsrl(SKL_UNC_PERF_GLOBAL_CTL, 0);
256 }
257 
258 static struct intel_uncore_ops skl_uncore_msr_ops = {
259 	.init_box	= skl_uncore_msr_init_box,
260 	.enable_box	= skl_uncore_msr_enable_box,
261 	.exit_box	= skl_uncore_msr_exit_box,
262 	.disable_event	= snb_uncore_msr_disable_event,
263 	.enable_event	= snb_uncore_msr_enable_event,
264 	.read_counter	= uncore_msr_read_counter,
265 };
266 
267 static struct intel_uncore_type skl_uncore_cbox = {
268 	.name		= "cbox",
269 	.num_counters   = 4,
270 	.num_boxes	= 8,
271 	.perf_ctr_bits	= 44,
272 	.fixed_ctr_bits	= 48,
273 	.perf_ctr	= SNB_UNC_CBO_0_PER_CTR0,
274 	.event_ctl	= SNB_UNC_CBO_0_PERFEVTSEL0,
275 	.fixed_ctr	= SNB_UNC_FIXED_CTR,
276 	.fixed_ctl	= SNB_UNC_FIXED_CTR_CTRL,
277 	.single_fixed	= 1,
278 	.event_mask	= SNB_UNC_RAW_EVENT_MASK,
279 	.msr_offset	= SNB_UNC_CBO_MSR_OFFSET,
280 	.ops		= &skl_uncore_msr_ops,
281 	.format_group	= &snb_uncore_format_group,
282 	.event_descs	= snb_uncore_events,
283 };
284 
285 static struct intel_uncore_type *skl_msr_uncores[] = {
286 	&skl_uncore_cbox,
287 	&snb_uncore_arb,
288 	NULL,
289 };
290 
291 void skl_uncore_cpu_init(void)
292 {
293 	uncore_msr_uncores = skl_msr_uncores;
294 	if (skl_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
295 		skl_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
296 	snb_uncore_arb.ops = &skl_uncore_msr_ops;
297 }
298 
299 static struct intel_uncore_type icl_uncore_cbox = {
300 	.name		= "cbox",
301 	.num_counters   = 4,
302 	.perf_ctr_bits	= 44,
303 	.perf_ctr	= ICL_UNC_CBO_0_PER_CTR0,
304 	.event_ctl	= SNB_UNC_CBO_0_PERFEVTSEL0,
305 	.event_mask	= SNB_UNC_RAW_EVENT_MASK,
306 	.msr_offset	= ICL_UNC_CBO_MSR_OFFSET,
307 	.ops		= &skl_uncore_msr_ops,
308 	.format_group	= &snb_uncore_format_group,
309 };
310 
311 static struct uncore_event_desc icl_uncore_events[] = {
312 	INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff"),
313 	{ /* end: all zeroes */ },
314 };
315 
316 static struct attribute *icl_uncore_clock_formats_attr[] = {
317 	&format_attr_event.attr,
318 	NULL,
319 };
320 
321 static struct attribute_group icl_uncore_clock_format_group = {
322 	.name = "format",
323 	.attrs = icl_uncore_clock_formats_attr,
324 };
325 
326 static struct intel_uncore_type icl_uncore_clockbox = {
327 	.name		= "clock",
328 	.num_counters	= 1,
329 	.num_boxes	= 1,
330 	.fixed_ctr_bits	= 48,
331 	.fixed_ctr	= SNB_UNC_FIXED_CTR,
332 	.fixed_ctl	= SNB_UNC_FIXED_CTR_CTRL,
333 	.single_fixed	= 1,
334 	.event_mask	= SNB_UNC_CTL_EV_SEL_MASK,
335 	.format_group	= &icl_uncore_clock_format_group,
336 	.ops		= &skl_uncore_msr_ops,
337 	.event_descs	= icl_uncore_events,
338 };
339 
340 static struct intel_uncore_type *icl_msr_uncores[] = {
341 	&icl_uncore_cbox,
342 	&snb_uncore_arb,
343 	&icl_uncore_clockbox,
344 	NULL,
345 };
346 
347 static int icl_get_cbox_num(void)
348 {
349 	u64 num_boxes;
350 
351 	rdmsrl(ICL_UNC_CBO_CONFIG, num_boxes);
352 
353 	return num_boxes & ICL_UNC_NUM_CBO_MASK;
354 }
355 
356 void icl_uncore_cpu_init(void)
357 {
358 	uncore_msr_uncores = icl_msr_uncores;
359 	icl_uncore_cbox.num_boxes = icl_get_cbox_num();
360 	snb_uncore_arb.ops = &skl_uncore_msr_ops;
361 }
362 
363 enum {
364 	SNB_PCI_UNCORE_IMC,
365 };
366 
367 static struct uncore_event_desc snb_uncore_imc_events[] = {
368 	INTEL_UNCORE_EVENT_DESC(data_reads,  "event=0x01"),
369 	INTEL_UNCORE_EVENT_DESC(data_reads.scale, "6.103515625e-5"),
370 	INTEL_UNCORE_EVENT_DESC(data_reads.unit, "MiB"),
371 
372 	INTEL_UNCORE_EVENT_DESC(data_writes, "event=0x02"),
373 	INTEL_UNCORE_EVENT_DESC(data_writes.scale, "6.103515625e-5"),
374 	INTEL_UNCORE_EVENT_DESC(data_writes.unit, "MiB"),
375 
376 	{ /* end: all zeroes */ },
377 };
378 
379 #define SNB_UNCORE_PCI_IMC_EVENT_MASK		0xff
380 #define SNB_UNCORE_PCI_IMC_BAR_OFFSET		0x48
381 
382 /* page size multiple covering all config regs */
383 #define SNB_UNCORE_PCI_IMC_MAP_SIZE		0x6000
384 
385 #define SNB_UNCORE_PCI_IMC_DATA_READS		0x1
386 #define SNB_UNCORE_PCI_IMC_DATA_READS_BASE	0x5050
387 #define SNB_UNCORE_PCI_IMC_DATA_WRITES		0x2
388 #define SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE	0x5054
389 #define SNB_UNCORE_PCI_IMC_CTR_BASE		SNB_UNCORE_PCI_IMC_DATA_READS_BASE
390 
391 enum perf_snb_uncore_imc_freerunning_types {
392 	SNB_PCI_UNCORE_IMC_DATA		= 0,
393 	SNB_PCI_UNCORE_IMC_FREERUNNING_TYPE_MAX,
394 };
395 
396 static struct freerunning_counters snb_uncore_imc_freerunning[] = {
397 	[SNB_PCI_UNCORE_IMC_DATA]     = { SNB_UNCORE_PCI_IMC_DATA_READS_BASE, 0x4, 0x0, 2, 32 },
398 };
399 
400 static struct attribute *snb_uncore_imc_formats_attr[] = {
401 	&format_attr_event.attr,
402 	NULL,
403 };
404 
405 static const struct attribute_group snb_uncore_imc_format_group = {
406 	.name = "format",
407 	.attrs = snb_uncore_imc_formats_attr,
408 };
409 
410 static void snb_uncore_imc_init_box(struct intel_uncore_box *box)
411 {
412 	struct pci_dev *pdev = box->pci_dev;
413 	int where = SNB_UNCORE_PCI_IMC_BAR_OFFSET;
414 	resource_size_t addr;
415 	u32 pci_dword;
416 
417 	pci_read_config_dword(pdev, where, &pci_dword);
418 	addr = pci_dword;
419 
420 #ifdef CONFIG_PHYS_ADDR_T_64BIT
421 	pci_read_config_dword(pdev, where + 4, &pci_dword);
422 	addr |= ((resource_size_t)pci_dword << 32);
423 #endif
424 
425 	addr &= ~(PAGE_SIZE - 1);
426 
427 	box->io_addr = ioremap(addr, SNB_UNCORE_PCI_IMC_MAP_SIZE);
428 	box->hrtimer_duration = UNCORE_SNB_IMC_HRTIMER_INTERVAL;
429 }
430 
431 static void snb_uncore_imc_enable_box(struct intel_uncore_box *box)
432 {}
433 
434 static void snb_uncore_imc_disable_box(struct intel_uncore_box *box)
435 {}
436 
437 static void snb_uncore_imc_enable_event(struct intel_uncore_box *box, struct perf_event *event)
438 {}
439 
440 static void snb_uncore_imc_disable_event(struct intel_uncore_box *box, struct perf_event *event)
441 {}
442 
443 /*
444  * Keep the custom event_init() function compatible with old event
445  * encoding for free running counters.
446  */
447 static int snb_uncore_imc_event_init(struct perf_event *event)
448 {
449 	struct intel_uncore_pmu *pmu;
450 	struct intel_uncore_box *box;
451 	struct hw_perf_event *hwc = &event->hw;
452 	u64 cfg = event->attr.config & SNB_UNCORE_PCI_IMC_EVENT_MASK;
453 	int idx, base;
454 
455 	if (event->attr.type != event->pmu->type)
456 		return -ENOENT;
457 
458 	pmu = uncore_event_to_pmu(event);
459 	/* no device found for this pmu */
460 	if (pmu->func_id < 0)
461 		return -ENOENT;
462 
463 	/* Sampling not supported yet */
464 	if (hwc->sample_period)
465 		return -EINVAL;
466 
467 	/* unsupported modes and filters */
468 	if (event->attr.sample_period) /* no sampling */
469 		return -EINVAL;
470 
471 	/*
472 	 * Place all uncore events for a particular physical package
473 	 * onto a single cpu
474 	 */
475 	if (event->cpu < 0)
476 		return -EINVAL;
477 
478 	/* check only supported bits are set */
479 	if (event->attr.config & ~SNB_UNCORE_PCI_IMC_EVENT_MASK)
480 		return -EINVAL;
481 
482 	box = uncore_pmu_to_box(pmu, event->cpu);
483 	if (!box || box->cpu < 0)
484 		return -EINVAL;
485 
486 	event->cpu = box->cpu;
487 	event->pmu_private = box;
488 
489 	event->event_caps |= PERF_EV_CAP_READ_ACTIVE_PKG;
490 
491 	event->hw.idx = -1;
492 	event->hw.last_tag = ~0ULL;
493 	event->hw.extra_reg.idx = EXTRA_REG_NONE;
494 	event->hw.branch_reg.idx = EXTRA_REG_NONE;
495 	/*
496 	 * check event is known (whitelist, determines counter)
497 	 */
498 	switch (cfg) {
499 	case SNB_UNCORE_PCI_IMC_DATA_READS:
500 		base = SNB_UNCORE_PCI_IMC_DATA_READS_BASE;
501 		idx = UNCORE_PMC_IDX_FREERUNNING;
502 		break;
503 	case SNB_UNCORE_PCI_IMC_DATA_WRITES:
504 		base = SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE;
505 		idx = UNCORE_PMC_IDX_FREERUNNING;
506 		break;
507 	default:
508 		return -EINVAL;
509 	}
510 
511 	/* must be done before validate_group */
512 	event->hw.event_base = base;
513 	event->hw.idx = idx;
514 
515 	/* Convert to standard encoding format for freerunning counters */
516 	event->hw.config = ((cfg - 1) << 8) | 0x10ff;
517 
518 	/* no group validation needed, we have free running counters */
519 
520 	return 0;
521 }
522 
523 static int snb_uncore_imc_hw_config(struct intel_uncore_box *box, struct perf_event *event)
524 {
525 	return 0;
526 }
527 
528 int snb_pci2phy_map_init(int devid)
529 {
530 	struct pci_dev *dev = NULL;
531 	struct pci2phy_map *map;
532 	int bus, segment;
533 
534 	dev = pci_get_device(PCI_VENDOR_ID_INTEL, devid, dev);
535 	if (!dev)
536 		return -ENOTTY;
537 
538 	bus = dev->bus->number;
539 	segment = pci_domain_nr(dev->bus);
540 
541 	raw_spin_lock(&pci2phy_map_lock);
542 	map = __find_pci2phy_map(segment);
543 	if (!map) {
544 		raw_spin_unlock(&pci2phy_map_lock);
545 		pci_dev_put(dev);
546 		return -ENOMEM;
547 	}
548 	map->pbus_to_physid[bus] = 0;
549 	raw_spin_unlock(&pci2phy_map_lock);
550 
551 	pci_dev_put(dev);
552 
553 	return 0;
554 }
555 
556 static struct pmu snb_uncore_imc_pmu = {
557 	.task_ctx_nr	= perf_invalid_context,
558 	.event_init	= snb_uncore_imc_event_init,
559 	.add		= uncore_pmu_event_add,
560 	.del		= uncore_pmu_event_del,
561 	.start		= uncore_pmu_event_start,
562 	.stop		= uncore_pmu_event_stop,
563 	.read		= uncore_pmu_event_read,
564 	.capabilities	= PERF_PMU_CAP_NO_EXCLUDE,
565 };
566 
567 static struct intel_uncore_ops snb_uncore_imc_ops = {
568 	.init_box	= snb_uncore_imc_init_box,
569 	.exit_box	= uncore_mmio_exit_box,
570 	.enable_box	= snb_uncore_imc_enable_box,
571 	.disable_box	= snb_uncore_imc_disable_box,
572 	.disable_event	= snb_uncore_imc_disable_event,
573 	.enable_event	= snb_uncore_imc_enable_event,
574 	.hw_config	= snb_uncore_imc_hw_config,
575 	.read_counter	= uncore_mmio_read_counter,
576 };
577 
578 static struct intel_uncore_type snb_uncore_imc = {
579 	.name		= "imc",
580 	.num_counters   = 2,
581 	.num_boxes	= 1,
582 	.num_freerunning_types	= SNB_PCI_UNCORE_IMC_FREERUNNING_TYPE_MAX,
583 	.freerunning	= snb_uncore_imc_freerunning,
584 	.event_descs	= snb_uncore_imc_events,
585 	.format_group	= &snb_uncore_imc_format_group,
586 	.ops		= &snb_uncore_imc_ops,
587 	.pmu		= &snb_uncore_imc_pmu,
588 };
589 
590 static struct intel_uncore_type *snb_pci_uncores[] = {
591 	[SNB_PCI_UNCORE_IMC]	= &snb_uncore_imc,
592 	NULL,
593 };
594 
595 static const struct pci_device_id snb_uncore_pci_ids[] = {
596 	{ /* IMC */
597 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SNB_IMC),
598 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
599 	},
600 	{ /* end: all zeroes */ },
601 };
602 
603 static const struct pci_device_id ivb_uncore_pci_ids[] = {
604 	{ /* IMC */
605 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_IMC),
606 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
607 	},
608 	{ /* IMC */
609 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_E3_IMC),
610 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
611 	},
612 	{ /* end: all zeroes */ },
613 };
614 
615 static const struct pci_device_id hsw_uncore_pci_ids[] = {
616 	{ /* IMC */
617 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HSW_IMC),
618 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
619 	},
620 	{ /* IMC */
621 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HSW_U_IMC),
622 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
623 	},
624 	{ /* end: all zeroes */ },
625 };
626 
627 static const struct pci_device_id bdw_uncore_pci_ids[] = {
628 	{ /* IMC */
629 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BDW_IMC),
630 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
631 	},
632 	{ /* end: all zeroes */ },
633 };
634 
635 static const struct pci_device_id skl_uncore_pci_ids[] = {
636 	{ /* IMC */
637 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_Y_IMC),
638 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
639 	},
640 	{ /* IMC */
641 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_U_IMC),
642 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
643 	},
644 	{ /* IMC */
645 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_HD_IMC),
646 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
647 	},
648 	{ /* IMC */
649 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_HQ_IMC),
650 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
651 	},
652 	{ /* IMC */
653 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_SD_IMC),
654 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
655 	},
656 	{ /* IMC */
657 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_SQ_IMC),
658 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
659 	},
660 	{ /* IMC */
661 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_Y_IMC),
662 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
663 	},
664 	{ /* IMC */
665 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_U_IMC),
666 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
667 	},
668 	{ /* IMC */
669 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_UQ_IMC),
670 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
671 	},
672 	{ /* IMC */
673 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_SD_IMC),
674 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
675 	},
676 	{ /* IMC */
677 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_SQ_IMC),
678 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
679 	},
680 	{ /* IMC */
681 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_HQ_IMC),
682 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
683 	},
684 	{ /* IMC */
685 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_WQ_IMC),
686 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
687 	},
688 	{ /* IMC */
689 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_2U_IMC),
690 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
691 	},
692 	{ /* IMC */
693 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_4U_IMC),
694 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
695 	},
696 	{ /* IMC */
697 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_4H_IMC),
698 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
699 	},
700 	{ /* IMC */
701 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_6H_IMC),
702 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
703 	},
704 	{ /* IMC */
705 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_2S_D_IMC),
706 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
707 	},
708 	{ /* IMC */
709 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_4S_D_IMC),
710 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
711 	},
712 	{ /* IMC */
713 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_6S_D_IMC),
714 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
715 	},
716 	{ /* IMC */
717 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_8S_D_IMC),
718 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
719 	},
720 	{ /* IMC */
721 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_4S_W_IMC),
722 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
723 	},
724 	{ /* IMC */
725 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_6S_W_IMC),
726 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
727 	},
728 	{ /* IMC */
729 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_8S_W_IMC),
730 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
731 	},
732 	{ /* IMC */
733 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_4S_S_IMC),
734 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
735 	},
736 	{ /* IMC */
737 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_6S_S_IMC),
738 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
739 	},
740 	{ /* IMC */
741 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_8S_S_IMC),
742 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
743 	},
744 	{ /* IMC */
745 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_AML_YD_IMC),
746 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
747 	},
748 	{ /* IMC */
749 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_AML_YQ_IMC),
750 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
751 	},
752 	{ /* IMC */
753 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WHL_UQ_IMC),
754 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
755 	},
756 	{ /* IMC */
757 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WHL_4_UQ_IMC),
758 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
759 	},
760 	{ /* IMC */
761 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WHL_UD_IMC),
762 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
763 	},
764 	{ /* end: all zeroes */ },
765 };
766 
767 static const struct pci_device_id icl_uncore_pci_ids[] = {
768 	{ /* IMC */
769 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICL_U_IMC),
770 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
771 	},
772 	{ /* IMC */
773 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICL_U2_IMC),
774 		.driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
775 	},
776 	{ /* end: all zeroes */ },
777 };
778 
779 static struct pci_driver snb_uncore_pci_driver = {
780 	.name		= "snb_uncore",
781 	.id_table	= snb_uncore_pci_ids,
782 };
783 
784 static struct pci_driver ivb_uncore_pci_driver = {
785 	.name		= "ivb_uncore",
786 	.id_table	= ivb_uncore_pci_ids,
787 };
788 
789 static struct pci_driver hsw_uncore_pci_driver = {
790 	.name		= "hsw_uncore",
791 	.id_table	= hsw_uncore_pci_ids,
792 };
793 
794 static struct pci_driver bdw_uncore_pci_driver = {
795 	.name		= "bdw_uncore",
796 	.id_table	= bdw_uncore_pci_ids,
797 };
798 
799 static struct pci_driver skl_uncore_pci_driver = {
800 	.name		= "skl_uncore",
801 	.id_table	= skl_uncore_pci_ids,
802 };
803 
804 static struct pci_driver icl_uncore_pci_driver = {
805 	.name		= "icl_uncore",
806 	.id_table	= icl_uncore_pci_ids,
807 };
808 
809 struct imc_uncore_pci_dev {
810 	__u32 pci_id;
811 	struct pci_driver *driver;
812 };
813 #define IMC_DEV(a, d) \
814 	{ .pci_id = PCI_DEVICE_ID_INTEL_##a, .driver = (d) }
815 
816 static const struct imc_uncore_pci_dev desktop_imc_pci_ids[] = {
817 	IMC_DEV(SNB_IMC, &snb_uncore_pci_driver),
818 	IMC_DEV(IVB_IMC, &ivb_uncore_pci_driver),    /* 3rd Gen Core processor */
819 	IMC_DEV(IVB_E3_IMC, &ivb_uncore_pci_driver), /* Xeon E3-1200 v2/3rd Gen Core processor */
820 	IMC_DEV(HSW_IMC, &hsw_uncore_pci_driver),    /* 4th Gen Core Processor */
821 	IMC_DEV(HSW_U_IMC, &hsw_uncore_pci_driver),  /* 4th Gen Core ULT Mobile Processor */
822 	IMC_DEV(BDW_IMC, &bdw_uncore_pci_driver),    /* 5th Gen Core U */
823 	IMC_DEV(SKL_Y_IMC, &skl_uncore_pci_driver),  /* 6th Gen Core Y */
824 	IMC_DEV(SKL_U_IMC, &skl_uncore_pci_driver),  /* 6th Gen Core U */
825 	IMC_DEV(SKL_HD_IMC, &skl_uncore_pci_driver),  /* 6th Gen Core H Dual Core */
826 	IMC_DEV(SKL_HQ_IMC, &skl_uncore_pci_driver),  /* 6th Gen Core H Quad Core */
827 	IMC_DEV(SKL_SD_IMC, &skl_uncore_pci_driver),  /* 6th Gen Core S Dual Core */
828 	IMC_DEV(SKL_SQ_IMC, &skl_uncore_pci_driver),  /* 6th Gen Core S Quad Core */
829 	IMC_DEV(KBL_Y_IMC, &skl_uncore_pci_driver),  /* 7th Gen Core Y */
830 	IMC_DEV(KBL_U_IMC, &skl_uncore_pci_driver),  /* 7th Gen Core U */
831 	IMC_DEV(KBL_UQ_IMC, &skl_uncore_pci_driver),  /* 7th Gen Core U Quad Core */
832 	IMC_DEV(KBL_SD_IMC, &skl_uncore_pci_driver),  /* 7th Gen Core S Dual Core */
833 	IMC_DEV(KBL_SQ_IMC, &skl_uncore_pci_driver),  /* 7th Gen Core S Quad Core */
834 	IMC_DEV(KBL_HQ_IMC, &skl_uncore_pci_driver),  /* 7th Gen Core H Quad Core */
835 	IMC_DEV(KBL_WQ_IMC, &skl_uncore_pci_driver),  /* 7th Gen Core S 4 cores Work Station */
836 	IMC_DEV(CFL_2U_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core U 2 Cores */
837 	IMC_DEV(CFL_4U_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core U 4 Cores */
838 	IMC_DEV(CFL_4H_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core H 4 Cores */
839 	IMC_DEV(CFL_6H_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core H 6 Cores */
840 	IMC_DEV(CFL_2S_D_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core S 2 Cores Desktop */
841 	IMC_DEV(CFL_4S_D_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core S 4 Cores Desktop */
842 	IMC_DEV(CFL_6S_D_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core S 6 Cores Desktop */
843 	IMC_DEV(CFL_8S_D_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core S 8 Cores Desktop */
844 	IMC_DEV(CFL_4S_W_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core S 4 Cores Work Station */
845 	IMC_DEV(CFL_6S_W_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core S 6 Cores Work Station */
846 	IMC_DEV(CFL_8S_W_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core S 8 Cores Work Station */
847 	IMC_DEV(CFL_4S_S_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core S 4 Cores Server */
848 	IMC_DEV(CFL_6S_S_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core S 6 Cores Server */
849 	IMC_DEV(CFL_8S_S_IMC, &skl_uncore_pci_driver),  /* 8th Gen Core S 8 Cores Server */
850 	IMC_DEV(AML_YD_IMC, &skl_uncore_pci_driver),	/* 8th Gen Core Y Mobile Dual Core */
851 	IMC_DEV(AML_YQ_IMC, &skl_uncore_pci_driver),	/* 8th Gen Core Y Mobile Quad Core */
852 	IMC_DEV(WHL_UQ_IMC, &skl_uncore_pci_driver),	/* 8th Gen Core U Mobile Quad Core */
853 	IMC_DEV(WHL_4_UQ_IMC, &skl_uncore_pci_driver),	/* 8th Gen Core U Mobile Quad Core */
854 	IMC_DEV(WHL_UD_IMC, &skl_uncore_pci_driver),	/* 8th Gen Core U Mobile Dual Core */
855 	IMC_DEV(ICL_U_IMC, &icl_uncore_pci_driver),	/* 10th Gen Core Mobile */
856 	IMC_DEV(ICL_U2_IMC, &icl_uncore_pci_driver),	/* 10th Gen Core Mobile */
857 	{  /* end marker */ }
858 };
859 
860 
861 #define for_each_imc_pci_id(x, t) \
862 	for (x = (t); (x)->pci_id; x++)
863 
864 static struct pci_driver *imc_uncore_find_dev(void)
865 {
866 	const struct imc_uncore_pci_dev *p;
867 	int ret;
868 
869 	for_each_imc_pci_id(p, desktop_imc_pci_ids) {
870 		ret = snb_pci2phy_map_init(p->pci_id);
871 		if (ret == 0)
872 			return p->driver;
873 	}
874 	return NULL;
875 }
876 
877 static int imc_uncore_pci_init(void)
878 {
879 	struct pci_driver *imc_drv = imc_uncore_find_dev();
880 
881 	if (!imc_drv)
882 		return -ENODEV;
883 
884 	uncore_pci_uncores = snb_pci_uncores;
885 	uncore_pci_driver = imc_drv;
886 
887 	return 0;
888 }
889 
890 int snb_uncore_pci_init(void)
891 {
892 	return imc_uncore_pci_init();
893 }
894 
895 int ivb_uncore_pci_init(void)
896 {
897 	return imc_uncore_pci_init();
898 }
899 int hsw_uncore_pci_init(void)
900 {
901 	return imc_uncore_pci_init();
902 }
903 
904 int bdw_uncore_pci_init(void)
905 {
906 	return imc_uncore_pci_init();
907 }
908 
909 int skl_uncore_pci_init(void)
910 {
911 	return imc_uncore_pci_init();
912 }
913 
914 /* end of Sandy Bridge uncore support */
915 
916 /* Nehalem uncore support */
917 static void nhm_uncore_msr_disable_box(struct intel_uncore_box *box)
918 {
919 	wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, 0);
920 }
921 
922 static void nhm_uncore_msr_enable_box(struct intel_uncore_box *box)
923 {
924 	wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, NHM_UNC_GLOBAL_CTL_EN_PC_ALL | NHM_UNC_GLOBAL_CTL_EN_FC);
925 }
926 
927 static void nhm_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
928 {
929 	struct hw_perf_event *hwc = &event->hw;
930 
931 	if (hwc->idx < UNCORE_PMC_IDX_FIXED)
932 		wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN);
933 	else
934 		wrmsrl(hwc->config_base, NHM_UNC_FIXED_CTR_CTL_EN);
935 }
936 
937 static struct attribute *nhm_uncore_formats_attr[] = {
938 	&format_attr_event.attr,
939 	&format_attr_umask.attr,
940 	&format_attr_edge.attr,
941 	&format_attr_inv.attr,
942 	&format_attr_cmask8.attr,
943 	NULL,
944 };
945 
946 static const struct attribute_group nhm_uncore_format_group = {
947 	.name = "format",
948 	.attrs = nhm_uncore_formats_attr,
949 };
950 
951 static struct uncore_event_desc nhm_uncore_events[] = {
952 	INTEL_UNCORE_EVENT_DESC(clockticks,                "event=0xff,umask=0x00"),
953 	INTEL_UNCORE_EVENT_DESC(qmc_writes_full_any,       "event=0x2f,umask=0x0f"),
954 	INTEL_UNCORE_EVENT_DESC(qmc_normal_reads_any,      "event=0x2c,umask=0x0f"),
955 	INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_reads,     "event=0x20,umask=0x01"),
956 	INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_writes,    "event=0x20,umask=0x02"),
957 	INTEL_UNCORE_EVENT_DESC(qhl_request_remote_reads,  "event=0x20,umask=0x04"),
958 	INTEL_UNCORE_EVENT_DESC(qhl_request_remote_writes, "event=0x20,umask=0x08"),
959 	INTEL_UNCORE_EVENT_DESC(qhl_request_local_reads,   "event=0x20,umask=0x10"),
960 	INTEL_UNCORE_EVENT_DESC(qhl_request_local_writes,  "event=0x20,umask=0x20"),
961 	{ /* end: all zeroes */ },
962 };
963 
964 static struct intel_uncore_ops nhm_uncore_msr_ops = {
965 	.disable_box	= nhm_uncore_msr_disable_box,
966 	.enable_box	= nhm_uncore_msr_enable_box,
967 	.disable_event	= snb_uncore_msr_disable_event,
968 	.enable_event	= nhm_uncore_msr_enable_event,
969 	.read_counter	= uncore_msr_read_counter,
970 };
971 
972 static struct intel_uncore_type nhm_uncore = {
973 	.name		= "",
974 	.num_counters   = 8,
975 	.num_boxes	= 1,
976 	.perf_ctr_bits	= 48,
977 	.fixed_ctr_bits	= 48,
978 	.event_ctl	= NHM_UNC_PERFEVTSEL0,
979 	.perf_ctr	= NHM_UNC_UNCORE_PMC0,
980 	.fixed_ctr	= NHM_UNC_FIXED_CTR,
981 	.fixed_ctl	= NHM_UNC_FIXED_CTR_CTRL,
982 	.event_mask	= NHM_UNC_RAW_EVENT_MASK,
983 	.event_descs	= nhm_uncore_events,
984 	.ops		= &nhm_uncore_msr_ops,
985 	.format_group	= &nhm_uncore_format_group,
986 };
987 
988 static struct intel_uncore_type *nhm_msr_uncores[] = {
989 	&nhm_uncore,
990 	NULL,
991 };
992 
993 void nhm_uncore_cpu_init(void)
994 {
995 	uncore_msr_uncores = nhm_msr_uncores;
996 }
997 
998 /* end of Nehalem uncore support */
999