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tprof_x86.c revision 1.8
      1 /*	$NetBSD: tprof_x86.c,v 1.8 2019/05/29 17:09:18 maxv Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2018-2019 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Maxime Villard.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #include <stdio.h>
     34 #include <stdlib.h>
     35 #include <stdbool.h>
     36 #include <string.h>
     37 #include <unistd.h>
     38 #include <err.h>
     39 #include <machine/specialreg.h>
     40 #include <dev/tprof/tprof_ioctl.h>
     41 #include "../tprof.h"
     42 
     43 int tprof_event_init(uint32_t);
     44 void tprof_event_list(void);
     45 void tprof_event_lookup(const char *, struct tprof_param *);
     46 
     47 struct name_to_event {
     48 	const char *name;
     49 	uint64_t event;
     50 	uint64_t unit;
     51 	bool enabled;
     52 };
     53 
     54 struct event_table {
     55 	const char *tablename;
     56 	struct name_to_event *names;
     57 	size_t nevents;
     58 	struct event_table *next;
     59 };
     60 
     61 static struct event_table *cpuevents = NULL;
     62 
     63 static void x86_cpuid(unsigned int *eax, unsigned int *ebx,
     64     unsigned int *ecx, unsigned int *edx)
     65 {
     66 	asm volatile("cpuid"
     67 	    : "=a" (*eax),
     68 	      "=b" (*ebx),
     69 	      "=c" (*ecx),
     70 	      "=d" (*edx)
     71 	    : "0" (*eax), "2" (*ecx));
     72 }
     73 
     74 /* -------------------------------------------------------------------------- */
     75 
     76 /*
     77  * Intel Architectural Version 1.
     78  */
     79 static struct name_to_event intel_arch1_names[] = {
     80 	/* Event Name - Event Select - UMask */
     81 	{ "unhalted-core-cycles",	0x3C, 0x00, true },
     82 	{ "instruction-retired",	0xC0, 0x00, true },
     83 	{ "unhalted-reference-cycles",	0x3C, 0x01, true },
     84 	{ "llc-reference",		0x2E, 0x4F, true },
     85 	{ "llc-misses",			0x2E, 0x41, true },
     86 	{ "branch-instruction-retired",	0xC4, 0x00, true },
     87 	{ "branch-misses-retired",	0xC5, 0x00, true },
     88 };
     89 
     90 static struct event_table intel_arch1 = {
     91 	.tablename = "Intel Architectural Version 1",
     92 	.names = intel_arch1_names,
     93 	.nevents = sizeof(intel_arch1_names) /
     94 	    sizeof(struct name_to_event),
     95 	.next = NULL
     96 };
     97 
     98 static struct event_table *
     99 init_intel_arch1(void)
    100 {
    101 	unsigned int eax, ebx, ecx, edx;
    102 	struct event_table *table;
    103 	size_t i;
    104 
    105 	eax = 0x0A;
    106 	ebx = 0;
    107 	ecx = 0;
    108 	edx = 0;
    109 	x86_cpuid(&eax, &ebx, &ecx, &edx);
    110 
    111 	table = &intel_arch1;
    112 	for (i = 0; i < table->nevents; i++) {
    113 		/* Disable the unsupported events. */
    114 		if ((ebx & (i << 1)) != 0)
    115 			table->names[i].enabled = false;
    116 	}
    117 
    118 	return table;
    119 }
    120 
    121 /*
    122  * Intel Silvermont/Airmont.
    123  */
    124 static struct name_to_event intel_silvermont_airmont_names[] = {
    125 	{ "REHABQ.LD_BLOCK_ST_FORWARD",		0x03, 0x01, true },
    126 	{ "REHABQ.LD_BLOCK_STD_NOTREADY",	0x03, 0x02, true },
    127 	{ "REHABQ.ST_SPLITS",			0x03, 0x04, true },
    128 	{ "REHABQ.LD_SPLITS",			0x03, 0x08, true },
    129 	{ "REHABQ.LOCK",			0x03, 0x10, true },
    130 	{ "REHABQ.STA_FULL",			0x03, 0x20, true },
    131 	{ "REHABQ.ANY_LD",			0x03, 0x40, true },
    132 	{ "REHABQ.ANY_ST",			0x03, 0x80, true },
    133 	{ "MEM_UOPS_RETIRED.L1_MISS_LOADS",	0x04, 0x01, true },
    134 	{ "MEM_UOPS_RETIRED.L2_HIT_LOADS",	0x04, 0x02, true },
    135 	{ "MEM_UOPS_RETIRED.L2_MISS_LOADS",	0x04, 0x04, true },
    136 	{ "MEM_UOPS_RETIRED.DTLB_MISS_LOADS",	0x04, 0x08, true },
    137 	{ "MEM_UOPS_RETIRED.UTLB_MISS",		0x04, 0x10, true },
    138 	{ "MEM_UOPS_RETIRED.HITM",		0x04, 0x20, true },
    139 	{ "MEM_UOPS_RETIRED.ALL_LOADS",		0x04, 0x40, true },
    140 	{ "MEM_UOP_RETIRED.ALL_STORES",		0x04, 0x80, true },
    141 	{ "PAGE_WALKS.D_SIDE_CYCLES",		0x05, 0x01, true },
    142 	{ "PAGE_WALKS.I_SIDE_CYCLES",		0x05, 0x02, true },
    143 	{ "PAGE_WALKS.WALKS",			0x05, 0x03, true },
    144 	{ "LONGEST_LAT_CACHE.MISS",		0x2E, 0x41, true },
    145 	{ "LONGEST_LAT_CACHE.REFERENCE",	0x2E, 0x4F, true },
    146 	{ "L2_REJECT_XQ.ALL",			0x30, 0x00, true },
    147 	{ "CORE_REJECT_L2Q.ALL",		0x31, 0x00, true },
    148 	{ "CPU_CLK_UNHALTED.CORE_P",		0x3C, 0x00, true },
    149 	{ "CPU_CLK_UNHALTED.REF_P",		0x3C, 0x01, true },
    150 	{ "ICACHE.HIT",				0x80, 0x01, true },
    151 	{ "ICACHE.MISSES",			0x80, 0x02, true },
    152 	{ "ICACHE.ACCESSES",			0x80, 0x03, true },
    153 	{ "OFFCORE_RESPONSE_0",			0xB7, 0x01, true },
    154 	{ "OFFCORE_RESPONSE_1",			0xB7, 0x02, true },
    155 	{ "INST_RETIRED.ANY_P",			0xC0, 0x00, true },
    156 	{ "UOPS_RETIRED.MS",			0xC2, 0x01, true },
    157 	{ "UOPS_RETIRED.ALL",			0xC2, 0x10, true },
    158 	{ "MACHINE_CLEARS.SMC",			0xC3, 0x01, true },
    159 	{ "MACHINE_CLEARS.MEMORY_ORDERING",	0xC3, 0x02, true },
    160 	{ "MACHINE_CLEARS.FP_ASSIST",		0xC3, 0x04, true },
    161 	{ "MACHINE_CLEARS.ALL",			0xC3, 0x08, true },
    162 	{ "BR_INST_RETIRED.ALL_BRANCHES",	0xC4, 0x00, true },
    163 	{ "BR_INST_RETIRED.JCC",		0xC4, 0x7E, true },
    164 	{ "BR_INST_RETIRED.FAR_BRANCH",		0xC4, 0xBF, true },
    165 	{ "BR_INST_RETIRED.NON_RETURN_IND",	0xC4, 0xEB, true },
    166 	{ "BR_INST_RETIRED.RETURN",		0xC4, 0xF7, true },
    167 	{ "BR_INST_RETIRED.CALL",		0xC4, 0xF9, true },
    168 	{ "BR_INST_RETIRED.IND_CALL",		0xC4, 0xFB, true },
    169 	{ "BR_INST_RETIRED.REL_CALL",		0xC4, 0xFD, true },
    170 	{ "BR_INST_RETIRED.TAKEN_JCC",		0xC4, 0xFE, true },
    171 	{ "BR_MISP_RETIRED.ALL_BRANCHES",	0xC5, 0x00, true },
    172 	{ "BR_MISP_RETIRED.JCC",		0xC5, 0x7E, true },
    173 	{ "BR_MISP_RETIRED.FAR",		0xC5, 0xBF, true },
    174 	{ "BR_MISP_RETIRED.NON_RETURN_IND",	0xC5, 0xEB, true },
    175 	{ "BR_MISP_RETIRED.RETURN",		0xC5, 0xF7, true },
    176 	{ "BR_MISP_RETIRED.CALL",		0xC5, 0xF9, true },
    177 	{ "BR_MISP_RETIRED.IND_CALL",		0xC5, 0xFB, true },
    178 	{ "BR_MISP_RETIRED.REL_CALL",		0xC5, 0xFD, true },
    179 	{ "BR_MISP_RETIRED.TAKEN_JCC",		0xC5, 0xFE, true },
    180 	{ "NO_ALLOC_CYCLES.ROB_FULL",		0xCA, 0x01, true },
    181 	{ "NO_ALLOC_CYCLES.RAT_STALL",		0xCA, 0x20, true },
    182 	{ "NO_ALLOC_CYCLES.ALL",		0xCA, 0x3F, true },
    183 	{ "NO_ALLOC_CYCLES.NOT_DELIVERED",	0xCA, 0x50, true },
    184 	{ "RS_FULL_STALL.MEC",			0xCB, 0x01, true },
    185 	{ "RS_FULL_STALL.ALL",			0xCB, 0x1F, true },
    186 	{ "CYCLES_DIV_BUSY.ANY",		0xCD, 0x01, true },
    187 	{ "BACLEARS.ALL",			0xE6, 0x01, true },
    188 	{ "BACLEARS.RETURN",			0xE6, 0x08, true },
    189 	{ "BACLEARS.COND",			0xE6, 0x10, true },
    190 	{ "MS_DECODED.MS_ENTRY",		0xE7, 0x01, true },
    191 };
    192 
    193 static struct event_table intel_silvermont_airmont = {
    194 	.tablename = "Intel Silvermont/Airmont",
    195 	.names = intel_silvermont_airmont_names,
    196 	.nevents = sizeof(intel_silvermont_airmont_names) /
    197 	    sizeof(struct name_to_event),
    198 	.next = NULL
    199 };
    200 
    201 static struct event_table *
    202 init_intel_silvermont_airmont(void)
    203 {
    204 
    205 	return &intel_silvermont_airmont;
    206 }
    207 
    208 /*
    209  * Intel Goldmont
    210  */
    211 static struct name_to_event intel_goldmont_names[] = {
    212 	{ "LD_BLOCKS.ALL_BLOCK",			0x03,	0x10, true },
    213 	{ "LD_BLOCKS.UTLB_MISS",			0x03,	0x08, true },
    214 	{ "LD_BLOCKS.STORE_FORWARD",			0x03,	0x02, true },
    215 	{ "LD_BLOCKS.DATA_UNKNOWN",			0x03,	0x01, true },
    216 	{ "LD_BLOCKS.4K_ALIAS",				0x03,	0x04, true },
    217 	{ "PAGE_WALKS.D_SIDE_CYCLES",			0x05,	0x01, true },
    218 	{ "PAGE_WALKS.I_SIDE_CYCLES",			0x05,	0x02, true },
    219 	{ "PAGE_WALKS.CYCLES",				0x05,	0x03, true },
    220 	{ "UOPS_ISSUED.ANY",				0x0E,	0x00, true },
    221 	{ "MISALIGN_MEM_REF.LOAD_PAGE_SPLIT",		0x13,	0x02, true },
    222 	{ "MISALIGN_MEM_REF.STORE_PAGE_SPLIT",		0x13,	0x04, true },
    223 	{ "LONGEST_LAT_CACHE.REFERENCE",		0x2E,	0x4F, true },
    224 	{ "LONGEST_LAT_CACHE.MISS",			0x2E,	0x41, true },
    225 	{ "L2_REJECT_XQ.ALL",				0x30,	0x00, true },
    226 	{ "CORE_REJECT_L2Q.ALL",			0x31,	0x00, true },
    227 	{ "CPU_CLK_UNHALTED.CORE_P",			0x3C,	0x00, true },
    228 	{ "CPU_CLK_UNHALTED.REF",			0x3C,	0x01, true },
    229 	{ "DL1.DIRTY_EVICTION",				0x51,	0x01, true },
    230 	{ "ICACHE.HIT",					0x80,	0x01, true },
    231 	{ "ICACHE.MISSES",				0x80,	0x02, true },
    232 	{ "ICACHE.ACCESSES",				0x80,	0x03, true },
    233 	{ "ITLB.MISS",					0x81,	0x04, true },
    234 	{ "FETCH_STALL.ALL",				0x86,	0x00, true },
    235 	{ "FETCH_STALL.ITLB_FILL_PENDING_CYCLES",	0x86,	0x01, true },
    236 	{ "FETCH_STALL.ICACHE_FILL_PENDING_CYCLES",	0x86,	0x02, true },
    237 	{ "UOPS_NOT_DELIVERED.ANY",			0x9C,	0x00, true },
    238 	{ "OFFCORE_RESPONSE.0",				0xB7,	0x01, true },
    239 	{ "OFFCORE_RESPONSE.1",				0xB7,	0x02, true },
    240 	{ "INST_RETIRED.ANY_P",				0xC0,	0x00, true },
    241 	{ "UOPS_RETIRED.ANY",				0xC2,	0x00, true },
    242 	{ "UOPS_RETIRED.MS",				0xC2,	0x01, true },
    243 	{ "UOPS_RETIRED.FPDIV",				0xC2,	0x08, true },
    244 	{ "UOPS_RETIRED.IDIV",				0xC2,	0x10, true },
    245 	{ "MACHINE_CLEARS.SMC",				0xC3,	0x01, true },
    246 	{ "MACHINE_CLEARS.MEMORY_ORDERING",		0xC3,	0x02, true },
    247 	{ "MACHINE_CLEARS.FP_ASSIST",			0xC3,	0x04, true },
    248 	{ "MACHINE_CLEARS.DISAMBIGUATION",		0xC3,	0x08, true },
    249 	{ "MACHINE_CLEARS.ALL",				0xC3,	0x00, true },
    250 	{ "BR_INST_RETIRED.ALL_BRANCHES",		0xC4,	0x00, true },
    251 	{ "BR_INST_RETIRED.JCC",			0xC4,	0x7E, true },
    252 	{ "BR_INST_RETIRED.ALL_TAKEN_BRANCHES",		0xC4,	0x80, true },
    253 	{ "BR_INST_RETIRED.TAKEN_JCC",			0xC4,	0xFE, true },
    254 	{ "BR_INST_RETIRED.CALL",			0xC4,	0xF9, true },
    255 	{ "BR_INST_RETIRED.REL_CALL",			0xC4,	0xFD, true },
    256 	{ "BR_INST_RETIRED.IND_CALL",			0xC4,	0xFB, true },
    257 	{ "BR_INST_RETIRED.RETURN",			0xC4,	0xF7, true },
    258 	{ "BR_INST_RETIRED.NON_RETURN_IND",		0xC4,	0xEB, true },
    259 	{ "BR_INST_RETIRED.FAR_BRANCH",			0xC4,	0xBF, true },
    260 	{ "BR_MISP_RETIRED.ALL_BRANCHES",		0xC5,	0x00, true },
    261 	{ "BR_MISP_RETIRED.JCC",			0xC5,	0x7E, true },
    262 	{ "BR_MISP_RETIRED.TAKEN_JCC",			0xC5,	0xFE, true },
    263 	{ "BR_MISP_RETIRED.IND_CALL",			0xC5,	0xFB, true },
    264 	{ "BR_MISP_RETIRED.RETURN",			0xC5,	0xF7, true },
    265 	{ "BR_MISP_RETIRED.NON_RETURN_IND",		0xC5,	0xEB, true },
    266 	{ "ISSUE_SLOTS_NOT_CONSUMED.RESOURCE_FULL",	0xCA,	0x01, true },
    267 	{ "ISSUE_SLOTS_NOT_CONSUMED.RECOVERY",		0xCA,	0x02, true },
    268 	{ "ISSUE_SLOTS_NOT_CONSUMED.ANY",		0xCA,	0x00, true },
    269 	{ "HW_INTERRUPTS.RECEIVED",			0xCB,	0x01, true },
    270 	{ "HW_INTERRUPTS.MASKED",			0xCB,	0x02, true },
    271 	{ "HW_INTERRUPTS.PENDING_AND_MASKED",		0xCB,	0x04, true },
    272 	{ "CYCLES_DIV_BUSY.ALL",			0xCD,	0x00, true },
    273 	{ "CYCLES_DIV_BUSY.IDIV",			0xCD,	0x01, true },
    274 	{ "CYCLES_DIV_BUSY.FPDIV",			0xCD,	0x02, true },
    275 	{ "MEM_UOPS_RETIRED.ALL_LOADS",			0xD0,	0x81, true },
    276 	{ "MEM_UOPS_RETIRED.ALL_STORES",		0xD0,	0x82, true },
    277 	{ "MEM_UOPS_RETIRED.ALL",			0xD0,	0x83, true },
    278 	{ "MEM_UOPS_RETIRED.DTLB_MISS_LOADS",		0xD0,	0x11, true },
    279 	{ "MEM_UOPS_RETIRED.DTLB_MISS_STORES",		0xD0,	0x12, true },
    280 	{ "MEM_UOPS_RETIRED.DTLB_MISS",			0xD0,	0x13, true },
    281 	{ "MEM_UOPS_RETIRED.LOCK_LOADS",		0xD0,	0x21, true },
    282 	{ "MEM_UOPS_RETIRED.SPLIT_LOADS",		0xD0,	0x41, true },
    283 	{ "MEM_UOPS_RETIRED.SPLIT_STORES",		0xD0,	0x42, true },
    284 	{ "MEM_UOPS_RETIRED.SPLIT",			0xD0,	0x43, true },
    285 	{ "MEM_LOAD_UOPS_RETIRED.L1_HIT",		0xD1,	0x01, true },
    286 	{ "MEM_LOAD_UOPS_RETIRED.L1_MISS",		0xD1,	0x08, true },
    287 	{ "MEM_LOAD_UOPS_RETIRED.L2_HIT",		0xD1,	0x02, true },
    288 	{ "MEM_LOAD_UOPS_RETIRED.L2_MISS",		0xD1,	0x10, true },
    289 	{ "MEM_LOAD_UOPS_RETIRED.HITM",			0xD1,	0x20, true },
    290 	{ "MEM_LOAD_UOPS_RETIRED.WCB_HIT",		0xD1,	0x40, true },
    291 	{ "MEM_LOAD_UOPS_RETIRED.DRAM_HIT",		0xD1,	0x80, true },
    292 	{ "BACLEARS.ALL",				0xE6,	0x01, true },
    293 	{ "BACLEARS.RETURN",				0xE6,	0x08, true },
    294 	{ "BACLEAR.CONDS",				0xE6,	0x10, true },
    295 	{ "MS_DECODED.MS_ENTRY",			0xE7,	0x01, true },
    296 	{ "DECODED_RESTRICTION.PREDECODE_WRONG",	0xE9,	0x01, true },
    297 };
    298 
    299 static struct event_table intel_goldmont = {
    300 	.tablename = "Intel Goldmont",
    301 	.names = intel_goldmont_names,
    302 	.nevents = sizeof(intel_goldmont_names) /
    303 	    sizeof(struct name_to_event),
    304 	.next = NULL
    305 };
    306 
    307 static struct event_table *
    308 init_intel_goldmont(void)
    309 {
    310 
    311 	return &intel_goldmont;
    312 }
    313 
    314 /*
    315  * Intel Goldmont Plus (Additions from Goldmont)
    316  */
    317 static struct name_to_event intel_goldmontplus_names[] = {
    318 	{ "INST_RETIRED.ANY",				0x00,	0x01, true },
    319 	{ "DTLB_LOAD_MISSES.WALK_COMPLETED_4K",		0x08,	0x02, true },
    320 	{ "DTLB_LOAD_MISSES.WALK_COMPLETED_2M_4M",	0x08,	0x04, true },
    321 	{ "DTLB_LOAD_MISSES.WALK_COMPLETED_1GB",	0x08,	0x08, true },
    322 	{ "DTLB_LOAD_MISSES.WALK_PENDING",		0x08,	0x10, true },
    323 	{ "DTLB_STORE_MISSES.WALK_COMPLETED_4K",	0x49,	0x02, true },
    324 	{ "DTLB_STORE_MISSES.WALK_COMPLETED_2M_4M",	0x49,	0x04, true },
    325 	{ "DTLB_STORE_MISSES.WALK_COMPLETED_1GB",	0x49,	0x08, true },
    326 	{ "DTLB_STORE_MISSES.WALK_PENDING",		0x49,	0x10, true },
    327 	{ "EPT.WALK_PENDING",				0x4F,	0x10, true },
    328 	{ "ITLB_MISSES.WALK_COMPLETED_4K",		0x85,	0x08, true },
    329 	{ "ITLB_MISSES.WALK_COMPLETED_2M_4M",		0x85,	0x04, true },
    330 	{ "ITLB_MISSES.WALK_COMPLETED_1GB",		0x85,	0x08, true },
    331 	{ "ITLB_MISSES.WALK_PENDING",			0x85,	0x10, true },
    332 	{ "TLB_FLUSHES.STLB_ANY",			0xBD,	0x20, true },
    333 	{ "MACHINE_CLEARS.PAGE_FAULT",			0xC3,	0x20, true },
    334 };
    335 
    336 static struct event_table intel_goldmontplus = {
    337 	.tablename = "Intel Goldmont Plus",
    338 	.names = intel_goldmontplus_names,
    339 	.nevents = sizeof(intel_goldmontplus_names) /
    340 	    sizeof(struct name_to_event),
    341 	.next = NULL
    342 };
    343 
    344 static struct event_table *
    345 init_intel_goldmontplus(void)
    346 {
    347 
    348 	intel_goldmont.next = &intel_goldmontplus;
    349 
    350 	return &intel_goldmont;
    351 }
    352 
    353 /*
    354  * Intel Skylake/Kabylake.
    355  *
    356  * The events that are not listed, because they are of little interest or
    357  * require extra configuration:
    358  *     TX_*
    359  *     FRONTEND_RETIRED.*
    360  *     FP_ARITH_INST_RETIRED.*
    361  *     HLE_RETIRED.*
    362  *     RTM_RETIRED.*
    363  *     MEM_TRANS_RETIRED.*
    364  *     UOPS_DISPATCHED_PORT.*
    365  */
    366 static struct name_to_event intel_skylake_kabylake_names[] = {
    367 	/* Event Name - Event Select - UMask */
    368 	{ "LD_BLOCKS.STORE_FORWARD",					0x03, 0x02, true },
    369 	{ "LD_BLOCKS.NO_SR",						0x03, 0x08, true },
    370 	{ "LD_BLOCKS_PARTIAL.ADDRESS_ALIAS",				0x07, 0x01, true },
    371 	{ "DTLB_LOAD_MISSES.MISS_CAUSES_A_WALK",			0x08, 0x01, true },
    372 	{ "DTLB_LOAD_MISSES.WALK_COMPLETED_4K",				0x08, 0x02, true },
    373 	{ "DTLB_LOAD_MISSES.WALK_COMPLETED_2M_4M",			0x08, 0x04, true },
    374 	{ "DTLB_LOAD_MISSES.WALK_COMPLETED_1G",				0x08, 0x08, true },
    375 	{ "DTLB_LOAD_MISSES.WALK_COMPLETED",				0x08, 0x0E, true },
    376 	{ "DTLB_LOAD_MISSES.WALK_PENDING",				0x08, 0x10, true },
    377 	{ "DTLB_LOAD_MISSES.STLB_HIT",					0x08, 0x20, true },
    378 	{ "INT_MISC.RECOVERY_CYCLES",					0x0D, 0x01, true },
    379 	{ "INT_MISC.CLEAR_RESTEER_CYCLES",				0x0D, 0x80, true },
    380 	{ "UOPS_ISSUED.ANY",						0x0E, 0x01, true },
    381 	{ "UOPS_ISSUED.VECTOR_WIDTH_MISMATCH",				0x0E, 0x02, true },
    382 	{ "UOPS_ISSUED.SLOW_LEA",					0x0E, 0x20, true },
    383 	{ "L2_RQSTS.DEMAND_DATA_RD_MISS",				0x24, 0x21, true },
    384 	{ "L2_RQSTS.RFO_MISS",						0x24, 0x22, true },
    385 	{ "L2_RQSTS.CODE_RD_MISS",					0x24, 0x24, true },
    386 	{ "L2_RQSTS.ALL_DEMAND_MISS",					0x24, 0x27, true },
    387 	{ "L2_RQSTS.PF_MISS",						0x24, 0x38, true },
    388 	{ "L2_RQSTS.MISS",						0x24, 0x3F, true },
    389 	{ "L2_RQSTS.DEMAND_DATA_RD_HIT",				0x24, 0x41, true },
    390 	{ "L2_RQSTS.RFO_HIT",						0x24, 0x42, true },
    391 	{ "L2_RQSTS.CODE_RD_HIT",					0x24, 0x44, true },
    392 	{ "L2_RQSTS.PF_HIT",						0x24, 0xD8, true },
    393 	{ "L2_RQSTS.ALL_DEMAND_DATA_RD",				0x24, 0xE1, true },
    394 	{ "L2_RQSTS.ALL_RFO",						0x24, 0xE2, true },
    395 	{ "L2_RQSTS.ALL_CODE_RD",					0x24, 0xE4, true },
    396 	{ "L2_RQSTS.ALL_DEMAND_REFERENCES",				0x24, 0xE7, true },
    397 	{ "L2_RQSTS.ALL_PF",						0x24, 0xF8, true },
    398 	{ "L2_RQSTS.REFERENCES",					0x24, 0xFF, true },
    399 	{ "SW_PREFETCH_ACCESS.NTA",					0x32, 0x01, true },
    400 	{ "SW_PREFETCH_ACCESS.T0",					0x32, 0x02, true },
    401 	{ "SW_PREFETCH_ACCESS.T1_T2",					0x32, 0x04, true },
    402 	{ "SW_PREFETCH_ACCESS.PREFETCHW",				0x32, 0x08, true },
    403 	{ "CPU_CLK_THREAD_UNHALTED.ONE_THREAD_ACTIVE",			0x3C, 0x02, true },
    404 	{ "CPU_CLK_UNHALTED.ONE_THREAD_ACTIVE",				0x3C, 0x02, true },
    405 	{ "L1D_PEND_MISS.PENDING",					0x48, 0x01, true },
    406 	{ "L1D_PEND_MISS.FB_FULL",					0x48, 0x02, true },
    407 	{ "DTLB_STORE_MISSES.MISS_CAUSES_A_WALK",			0x49, 0x01, true },
    408 	{ "DTLB_STORE_MISSES.WALK_COMPLETED_4K",			0x49, 0x02, true },
    409 	{ "DTLB_STORE_MISSES.WALK_COMPLETED_2M_4M",			0x49, 0x04, true },
    410 	{ "DTLB_STORE_MISSES.WALK_COMPLETED_1G",			0x49, 0x08, true },
    411 	{ "DTLB_STORE_MISSES.WALK_COMPLETED",				0x49, 0x0E, true },
    412 	{ "DTLB_STORE_MISSES.WALK_PENDING",				0x49, 0x10, true },
    413 	{ "DTLB_STORE_MISSES.STLB_HIT",					0x49, 0x20, true },
    414 	{ "LOAD_HIT_PRE.SW_PF",						0x4C, 0x01, true },
    415 	{ "EPT.WALK_PENDING",						0x4F, 0x10, true },
    416 	{ "L1D.REPLACEMENT",						0x51, 0x01, true },
    417 	{ "RS_EVENTS.EMPTY_CYCLES",					0x5E, 0x01, true },
    418 	{ "OFFCORE_REQUESTS_OUTSTANDING.DEMAND_DATA_RD",		0x60, 0x01, true },
    419 	{ "OFFCORE_REQUESTS_OUTSTANDING.DEMAND_CODE_RD",		0x60, 0x02, true },
    420 	{ "OFFCORE_REQUESTS_OUTSTANDING.DEMAND_RFO",			0x60, 0x04, true },
    421 	{ "OFFCORE_REQUESTS_OUTSTANDING.ALL_DATA_RD",			0x60, 0x08, true },
    422 	{ "OFFCORE_REQUESTS_OUTSTANDING.L3_MISS_DEMAND_DATA_RD",	0x60, 0x10, true },
    423 	{ "IDQ.MITE_UOPS",						0x79, 0x04, true },
    424 	{ "IDQ.DSB_UOPS",						0x79, 0x08, true },
    425 	{ "IDQ.MS_MITE_UOPS",						0x79, 0x20, true },
    426 	{ "IDQ.MS_UOPS",						0x79, 0x30, true },
    427 	{ "ICACHE_16B.IFDATA_STALL",					0x80, 0x04, true },
    428 	{ "ICACHE_64B.IFTAG_HIT",					0x83, 0x01, true },
    429 	{ "ICACHE_64B.IFTAG_MISS",					0x83, 0x02, true },
    430 	{ "ICACHE_64B.IFTAG_STALL",					0x83, 0x04, true },
    431 	{ "ITLB_MISSES.MISS_CAUSES_A_WALK",				0x85, 0x01, true },
    432 	{ "ITLB_MISSES.WALK_COMPLETED_4K",				0x85, 0x02, true },
    433 	{ "ITLB_MISSES.WALK_COMPLETED_2M_4M",				0x85, 0x04, true },
    434 	{ "ITLB_MISSES.WALK_COMPLETED_1G",				0x85, 0x08, true },
    435 	{ "ITLB_MISSES.WALK_COMPLETED",					0x85, 0x0E, true },
    436 	{ "ITLB_MISSES.WALK_PENDING",					0x85, 0x10, true },
    437 	{ "ITLB_MISSES.STLB_HIT",					0x85, 0x20, true },
    438 	{ "ILD_STALL.LCP",						0x87, 0x01, true },
    439 	{ "IDQ_UOPS_NOT_DELIVERED.CORE",				0x9C, 0x01, true },
    440 	{ "RESOURCE_STALLS.ANY",					0xA2, 0x01, true },
    441 	{ "RESOURCE_STALLS.SB",						0xA2, 0x08, true },
    442 	{ "EXE_ACTIVITY.EXE_BOUND_0_PORTS",				0xA6, 0x01, true },
    443 	{ "EXE_ACTIVITY.1_PORTS_UTIL",					0xA6, 0x02, true },
    444 	{ "EXE_ACTIVITY.2_PORTS_UTIL",					0xA6, 0x04, true },
    445 	{ "EXE_ACTIVITY.3_PORTS_UTIL",					0xA6, 0x08, true },
    446 	{ "EXE_ACTIVITY.4_PORTS_UTIL",					0xA6, 0x10, true },
    447 	{ "EXE_ACTIVITY.BOUND_ON_STORES",				0xA6, 0x40, true },
    448 	{ "LSD.UOPS",							0xA8, 0x01, true },
    449 	{ "DSB2MITE_SWITCHES.PENALTY_CYCLES",				0xAB, 0x02, true },
    450 	{ "ITLB.ITLB_FLUSH",						0xAE, 0x01, true },
    451 	{ "OFFCORE_REQUESTS.DEMAND_DATA_RD",				0xB0, 0x01, true },
    452 	{ "OFFCORE_REQUESTS.DEMAND_CODE_RD",				0xB0, 0x02, true },
    453 	{ "OFFCORE_REQUESTS.DEMAND_RFO",				0xB0, 0x04, true },
    454 	{ "OFFCORE_REQUESTS.ALL_DATA_RD",				0xB0, 0x08, true },
    455 	{ "OFFCORE_REQUESTS.L3_MISS_DEMAND_DATA_RD",			0xB0, 0x10, true },
    456 	{ "OFFCORE_REQUESTS.ALL_REQUESTS",				0xB0, 0x80, true },
    457 	{ "UOPS_EXECUTED.THREAD",					0xB1, 0x01, true },
    458 	{ "UOPS_EXECUTED.CORE",						0xB1, 0x02, true },
    459 	{ "UOPS_EXECUTED.X87",						0xB1, 0x10, true },
    460 	{ "OFFCORE_REQUESTS_BUFFER.SQ_FULL",				0xB2, 0x01, true },
    461 	{ "TLB_FLUSH.DTLB_THREAD",					0xBD, 0x01, true },
    462 	{ "TLB_FLUSH.STLB_ANY",						0xBD, 0x20, true },
    463 	{ "INST_RETIRED.PREC_DIST",					0xC0, 0x01, true },
    464 	{ "OTHER_ASSISTS.ANY",						0xC1, 0x3F, true },
    465 	{ "UOPS_RETIRED.RETIRE_SLOTS",					0xC2, 0x02, true },
    466 	{ "MACHINE_CLEARS.MEMORY_ORDERING",				0xC3, 0x02, true },
    467 	{ "MACHINE_CLEARS.SMC",						0xC3, 0x04, true },
    468 	{ "BR_INST_RETIRED.CONDITIONAL",				0xC4, 0x01, true },
    469 	{ "BR_INST_RETIRED.NEAR_CALL",					0xC4, 0x02, true },
    470 	{ "BR_INST_RETIRED.NEAR_RETURN",				0xC4, 0x08, true },
    471 	{ "BR_INST_RETIRED.NOT_TAKEN",					0xC4, 0x10, true },
    472 	{ "BR_INST_RETIRED.NEAR_TAKEN",					0xC4, 0x20, true },
    473 	{ "BR_INST_RETIRED.FAR_BRANCH",					0xC4, 0x40, true },
    474 	{ "BR_MISP_RETIRED.CONDITIONAL",				0xC5, 0x01, true },
    475 	{ "BR_MISP_RETIRED.NEAR_CALL",					0xC5, 0x02, true },
    476 	{ "BR_MISP_RETIRED.NEAR_TAKEN",					0xC5, 0x20, true },
    477 	{ "HW_INTERRUPTS.RECEIVED",					0xCB, 0x01, true },
    478 	{ "MEM_INST_RETIRED.STLB_MISS_LOADS",				0xD0, 0x11, true },
    479 	{ "MEM_INST_RETIRED.STLB_MISS_STORES",				0xD0, 0x12, true },
    480 	{ "MEM_INST_RETIRED.LOCK_LOADS",				0xD0, 0x21, true },
    481 	{ "MEM_INST_RETIRED.SPLIT_LOADS",				0xD0, 0x41, true },
    482 	{ "MEM_INST_RETIRED.SPLIT_STORES",				0xD0, 0x42, true },
    483 	{ "MEM_INST_RETIRED.ALL_LOADS",					0xD0, 0x81, true },
    484 	{ "MEM_INST_RETIRED.ALL_STORES",				0xD0, 0x82, true },
    485 	{ "MEM_LOAD_RETIRED.L1_HIT",					0xD1, 0x01, true },
    486 	{ "MEM_LOAD_RETIRED.L2_HIT",					0xD1, 0x02, true },
    487 	{ "MEM_LOAD_RETIRED.L3_HIT",					0xD1, 0x04, true },
    488 	{ "MEM_LOAD_RETIRED.L1_MISS",					0xD1, 0x08, true },
    489 	{ "MEM_LOAD_RETIRED.L2_MISS",					0xD1, 0x10, true },
    490 	{ "MEM_LOAD_RETIRED.L3_MISS",					0xD1, 0x20, true },
    491 	{ "MEM_LOAD_RETIRED.FB_HIT",					0xD1, 0x40, true },
    492 	{ "MEM_LOAD_L3_HIT_RETIRED.XSNP_MISS",				0xD2, 0x01, true },
    493 	{ "MEM_LOAD_L3_HIT_RETIRED.XSNP_HIT",				0xD2, 0x02, true },
    494 	{ "MEM_LOAD_L3_HIT_RETIRED.XSNP_HITM",				0xD2, 0x04, true },
    495 	{ "MEM_LOAD_L3_HIT_RETIRED.XSNP_NONE",				0xD2, 0x08, true },
    496 	{ "MEM_LOAD_MISC_RETIRED.UC",					0xD4, 0x04, true },
    497 	{ "BACLEARS.ANY",						0xE6, 0x01, true },
    498 	{ "L2_TRANS.L2_WB",						0xF0, 0x40, true },
    499 	{ "L2_LINES_IN.ALL",						0xF1, 0x1F, true },
    500 	{ "L2_LINES_OUT.SILENT",					0xF2, 0x01, true },
    501 	{ "L2_LINES_OUT.NON_SILENT",					0xF2, 0x02, true },
    502 	{ "L2_LINES_OUT.USELESS_HWPF",					0xF2, 0x04, true },
    503 	{ "SQ_MISC.SPLIT_LOCK",						0xF4, 0x10, true },
    504 };
    505 
    506 static struct event_table intel_skylake_kabylake = {
    507 	.tablename = "Intel Skylake/Kabylake",
    508 	.names = intel_skylake_kabylake_names,
    509 	.nevents = sizeof(intel_skylake_kabylake_names) /
    510 	    sizeof(struct name_to_event),
    511 	.next = NULL
    512 };
    513 
    514 static struct event_table *
    515 init_intel_skylake_kabylake(void)
    516 {
    517 	return &intel_skylake_kabylake;
    518 }
    519 
    520 static struct event_table *
    521 init_intel_generic(void)
    522 {
    523 	unsigned int eax, ebx, ecx, edx;
    524 	struct event_table *table;
    525 
    526 	/*
    527 	 * The kernel made sure the Architectural Version 1 PMCs were
    528 	 * present.
    529 	 */
    530 	table = init_intel_arch1();
    531 
    532 	/*
    533 	 * Now query the additional (non-architectural) events. They
    534 	 * depend on the CPU model.
    535 	 */
    536 	eax = 0x01;
    537 	ebx = 0;
    538 	ecx = 0;
    539 	edx = 0;
    540 	x86_cpuid(&eax, &ebx, &ecx, &edx);
    541 
    542 	if (CPUID_TO_FAMILY(eax) == 6) {
    543 		switch (CPUID_TO_MODEL(eax)) {
    544 		case 0x37: /* Silvermont (Bay Trail) */
    545 		case 0x4A: /* Silvermont (Tangier) */
    546 		case 0x4C: /* Airmont (Braswell, Cherry Trail) */
    547 		case 0x4D: /* Silvermont (Avoton, Rangeley) */
    548 		case 0x5A: /* Silvermont (Anniedale) */
    549 		case 0x5D: /* Silvermont (SoFIA) */
    550 			table->next = init_intel_silvermont_airmont();
    551 			break;
    552 		case 0x5C: /* Goldmont (Apollo Lake) */
    553 		case 0x5F: /* Goldmont (Denvertion) */
    554 			table->next = init_intel_goldmont();
    555 			break;
    556 		case 0x7A: /* Goldmont Plus (Gemini Lake) */
    557 			table->next = init_intel_goldmontplus();
    558 			break;
    559 		case 0x4E: /* Skylake */
    560 		case 0x5E: /* Skylake */
    561 		case 0x8E: /* Kabylake */
    562 		case 0x9E: /* Kabylake */
    563 			table->next = init_intel_skylake_kabylake();
    564 			break;
    565 		}
    566 	}
    567 
    568 	return table;
    569 }
    570 
    571 /* -------------------------------------------------------------------------- */
    572 
    573 /*
    574  * AMD Family 10h
    575  */
    576 static struct name_to_event amd_f10h_names[] = {
    577 	{ "seg-load-all",		0x20, 0x7f, true },
    578 	{ "seg-load-es",		0x20, 0x01, true },
    579 	{ "seg-load-cs",		0x20, 0x02, true },
    580 	{ "seg-load-ss",		0x20, 0x04, true },
    581 	{ "seg-load-ds",		0x20, 0x08, true },
    582 	{ "seg-load-fs",		0x20, 0x10, true },
    583 	{ "seg-load-gs",		0x20, 0x20, true },
    584 	{ "seg-load-hs",		0x20, 0x40, true },
    585 	{ "l1cache-access",		0x40, 0x00, true },
    586 	{ "l1cache-miss",		0x41, 0x00, true },
    587 	{ "l1cache-refill",		0x42, 0x1f, true },
    588 	{ "l1cache-refill-invalid",	0x42, 0x01, true },
    589 	{ "l1cache-refill-shared",	0x42, 0x02, true },
    590 	{ "l1cache-refill-exclusive",	0x42, 0x04, true },
    591 	{ "l1cache-refill-owner",	0x42, 0x08, true },
    592 	{ "l1cache-refill-modified",	0x42, 0x10, true },
    593 	{ "l1cache-load",		0x43, 0x1f, true },
    594 	{ "l1cache-load-invalid",	0x43, 0x01, true },
    595 	{ "l1cache-load-shared",	0x43, 0x02, true },
    596 	{ "l1cache-load-exclusive",	0x43, 0x04, true },
    597 	{ "l1cache-load-owner",		0x43, 0x08, true },
    598 	{ "l1cache-load-modified",	0x43, 0x10, true },
    599 	{ "l1cache-writeback",		0x44, 0x1f, true },
    600 	{ "l1cache-writeback-invalid",	0x44, 0x01, true },
    601 	{ "l1cache-writeback-shared",	0x44, 0x02, true },
    602 	{ "l1cache-writeback-exclusive",0x44, 0x04, true },
    603 	{ "l1cache-writeback-owner",	0x44, 0x08, true },
    604 	{ "l1cache-writeback-modified",	0x44, 0x10, true },
    605 	{ "l1DTLB-hit-all",		0x4D, 0x07, true },
    606 	{ "l1DTLB-hit-4Kpage",		0x4D, 0x01, true },
    607 	{ "l1DTLB-hit-2Mpage",		0x4D, 0x02, true },
    608 	{ "l1DTLB-hit-1Gpage",		0x4D, 0x04, true },
    609 	{ "l1DTLB-miss-all",		0x45, 0x07, true },
    610 	{ "l1DTLB-miss-4Kpage",		0x45, 0x01, true },
    611 	{ "l1DTLB-miss-2Mpage",		0x45, 0x02, true },
    612 	{ "l1DTLB-miss-1Gpage",		0x45, 0x04, true },
    613 	{ "l2DTLB-miss-all",		0x46, 0x03, true },
    614 	{ "l2DTLB-miss-4Kpage",		0x46, 0x01, true },
    615 	{ "l2DTLB-miss-2Mpage",		0x46, 0x02, true },
    616 	/* l2DTLB-miss-1Gpage: reserved on some revisions, so disabled */
    617 	{ "l1ITLB-miss",		0x84, 0x00, true },
    618 	{ "l2ITLB-miss-all",		0x85, 0x03, true },
    619 	{ "l2ITLB-miss-4Kpage",		0x85, 0x01, true },
    620 	{ "l2ITLB-miss-2Mpage",		0x85, 0x02, true },
    621 	{ "mem-misalign-ref",		0x47, 0x00, true },
    622 	{ "ins-fetch",			0x80, 0x00, true },
    623 	{ "ins-fetch-miss",		0x81, 0x00, true },
    624 	{ "ins-refill-l2",		0x82, 0x00, true },
    625 	{ "ins-refill-sys",		0x83, 0x00, true },
    626 	{ "ins-fetch-stall",		0x87, 0x00, true },
    627 	{ "ins-retired",		0xC0, 0x00, true },
    628 	{ "ins-empty",			0xD0, 0x00, true },
    629 	{ "ops-retired",		0xC1, 0x00, true },
    630 	{ "branch-retired",		0xC2, 0x00, true },
    631 	{ "branch-miss-retired",	0xC3, 0x00, true },
    632 	{ "branch-taken-retired",	0xC4, 0x00, true },
    633 	{ "branch-taken-miss-retired",	0xC5, 0x00, true },
    634 	{ "branch-far-retired",		0xC6, 0x00, true },
    635 	{ "branch-resync-retired",	0xC7, 0x00, true },
    636 	{ "branch-near-retired",	0xC8, 0x00, true },
    637 	{ "branch-near-miss-retired",	0xC9, 0x00, true },
    638 	{ "branch-indirect-miss-retired", 0xCA, 0x00, true },
    639 	{ "int-hw",			0xCF, 0x00, true },
    640 	{ "int-cycles-masked",		0xCD, 0x00, true },
    641 	{ "int-cycles-masked-pending",	0xCE, 0x00, true },
    642 	{ "fpu-exceptions",		0xDB, 0x00, true },
    643 	{ "break-match0",		0xDC, 0x00, true },
    644 	{ "break-match1",		0xDD, 0x00, true },
    645 	{ "break-match2",		0xDE, 0x00, true },
    646 	{ "break-match3",		0xDF, 0x00, true },
    647 };
    648 
    649 static struct event_table amd_f10h = {
    650 	.tablename = "AMD Family 10h",
    651 	.names = amd_f10h_names,
    652 	.nevents = sizeof(amd_f10h_names) /
    653 	    sizeof(struct name_to_event),
    654 	.next = NULL
    655 };
    656 
    657 /*
    658  * AMD Family 17h
    659  */
    660 static struct name_to_event amd_f17h_names[] = {
    661 	{ "FpRetx87FpOps",		0x02, __BITS(2,0), true },
    662 	{ "FpRetSseAvxOps",		0x03, __BITS(7,0), true },
    663 	{ "FpRetiredSerOps",		0x05, __BITS(3,0), true },
    664 	{ "LsL1DTlbMiss",		0x45, __BITS(7,0), true },
    665 	{ "LsTableWalker",		0x46, __BITS(3,0), true },
    666 	{ "LsMisalAccesses",		0x47, 0x00, true },
    667 	{ "LsInefSwPref",		0x52, __BITS(1,0), true },
    668 	{ "LsNotHaltedCyc",		0x76, 0x00, true },
    669 	{ "IcFw32",			0x80, 0x00, true },
    670 	{ "IcFw32Miss",			0x81, 0x00, true },
    671 	{ "IcCacheFillL2",		0x82, 0x00, true },
    672 	{ "IcCacheFillSys",		0x83, 0x00, true },
    673 	{ "IcFetchStall",		0x87, __BITS(2,0), true },
    674 	{ "IcCacheInval",		0x8C, __BITS(1,0), true },
    675 	{ "BpL1TlbMissL2Hit",		0x84, 0x00, true },
    676 	{ "BpL1TlbMissL2Miss",		0x85, 0x00, true },
    677 	{ "BpSnpReSync",		0x86, 0x00, true },
    678 	{ "BpL1BTBCorrect",		0x8A, 0x00, true },
    679 	{ "BpL2BTBCorrect",		0x8B, 0x00, true },
    680 	{ "BpTlbRel",			0x99, 0x00, true },
    681 	{ "ExRetInstr",			0xC0, 0x00, true },
    682 	{ "ExRetCops",			0xC1, 0x00, true },
    683 	{ "ExRetBrn",			0xC2, 0x00, true },
    684 	{ "ExRetBrnMisp",		0xC3, 0x00, true },
    685 	{ "ExRetBrnTkn",		0xC4, 0x00, true },
    686 	{ "ExRetBrnTknMisp",		0xC5, 0x00, true },
    687 	{ "ExRetBrnFar",		0xC6, 0x00, true },
    688 	{ "ExRetBrnResync",		0xC7, 0x00, true },
    689 	{ "ExRetBrnIndMisp",		0xCA, 0x00, true },
    690 	{ "ExRetNearRet",		0xC8, 0x00, true },
    691 	{ "ExRetNearRetMispred",	0xC9, 0x00, true },
    692 	{ "ExRetMmxFpInstr@X87",	0xCB, __BIT(0), true },
    693 	{ "ExRetMmxFpInstr@Mmx",	0xCB, __BIT(1), true },
    694 	{ "ExRetMmxFpInstr@Sse",	0xCB, __BIT(2), true },
    695 	{ "ExRetCond",			0xD1, 0x00, true },
    696 	{ "ExRetCondMisp",		0xD2, 0x00, true },
    697 	{ "ExDivBusy",			0xD3, 0x00, true },
    698 	{ "ExDivCount",			0xD4, 0x00, true },
    699 };
    700 
    701 static struct event_table amd_f17h = {
    702 	.tablename = "AMD Family 17h",
    703 	.names = amd_f17h_names,
    704 	.nevents = sizeof(amd_f17h_names) /
    705 	    sizeof(struct name_to_event),
    706 	.next = NULL
    707 };
    708 
    709 static struct event_table *
    710 init_amd_generic(void)
    711 {
    712 	unsigned int eax, ebx, ecx, edx;
    713 
    714 	eax = 0x01;
    715 	ebx = 0;
    716 	ecx = 0;
    717 	edx = 0;
    718 	x86_cpuid(&eax, &ebx, &ecx, &edx);
    719 
    720 	switch (CPUID_TO_FAMILY(eax)) {
    721 	case 0x10:
    722 		return &amd_f10h;
    723 	case 0x17:
    724 		return &amd_f17h;
    725 	}
    726 
    727 	return NULL;
    728 }
    729 
    730 /* -------------------------------------------------------------------------- */
    731 
    732 int
    733 tprof_event_init(uint32_t ident)
    734 {
    735 	switch (ident) {
    736 	case TPROF_IDENT_NONE:
    737 		return -1;
    738 	case TPROF_IDENT_INTEL_GENERIC:
    739 		cpuevents = init_intel_generic();
    740 		break;
    741 	case TPROF_IDENT_AMD_GENERIC:
    742 		cpuevents = init_amd_generic();
    743 		break;
    744 	}
    745 	return (cpuevents == NULL) ? -1 : 0;
    746 }
    747 
    748 static void
    749 recursive_event_list(struct event_table *table)
    750 {
    751 	size_t i;
    752 
    753 	printf("%s:\n", table->tablename);
    754 	for (i = 0; i < table->nevents; i++) {
    755 		if (!table->names[i].enabled)
    756 			continue;
    757 		printf("\t%s\n", table->names[i].name);
    758 	}
    759 
    760 	if (table->next != NULL) {
    761 		recursive_event_list(table->next);
    762 	}
    763 }
    764 
    765 void
    766 tprof_event_list(void)
    767 {
    768 	recursive_event_list(cpuevents);
    769 }
    770 
    771 static void
    772 recursive_event_lookup(struct event_table *table, const char *name,
    773     struct tprof_param *param)
    774 {
    775 	size_t i;
    776 
    777 	for (i = 0; i < table->nevents; i++) {
    778 		if (!table->names[i].enabled)
    779 			continue;
    780 		if (!strcmp(table->names[i].name, name)) {
    781 			param->p_event = table->names[i].event;
    782 			param->p_unit = table->names[i].unit;
    783 			return;
    784 		}
    785 	}
    786 
    787 	if (table->next != NULL) {
    788 		recursive_event_lookup(table->next, name, param);
    789 	} else {
    790 		errx(EXIT_FAILURE, "event '%s' unknown", name);
    791 	}
    792 }
    793 
    794 void
    795 tprof_event_lookup(const char *name, struct tprof_param *param)
    796 {
    797 	recursive_event_lookup(cpuevents, name, param);
    798 }
    799