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      1 /*
      2  * Copyright 2015 Advanced Micro Devices, Inc.
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     21  * SOFTWARE.
     22  *
     23  * Authors:
     24  *  Nicolai Hhnle <nicolai.haehnle (at) amd.com>
     25  *
     26  */
     27 
     28 #include "radeon/r600_cs.h"
     29 #include "radeon/r600_query.h"
     30 #include "util/u_memory.h"
     31 
     32 #include "si_pipe.h"
     33 #include "sid.h"
     34 
     35 enum si_pc_reg_layout {
     36 	/* All secondary selector dwords follow as one block after the primary
     37 	 * selector dwords for the counters that have secondary selectors.
     38 	 */
     39 	SI_PC_MULTI_BLOCK = 0,
     40 
     41 	/* Each secondary selector dword follows immediately afters the
     42 	 * corresponding primary.
     43 	 */
     44 	SI_PC_MULTI_ALTERNATE = 1,
     45 
     46 	/* All secondary selector dwords follow as one block after all primary
     47 	 * selector dwords.
     48 	 */
     49 	SI_PC_MULTI_TAIL = 2,
     50 
     51 	/* Free-form arrangement of selector registers. */
     52 	SI_PC_MULTI_CUSTOM = 3,
     53 
     54 	SI_PC_MULTI_MASK = 3,
     55 
     56 	/* Registers are laid out in decreasing rather than increasing order. */
     57 	SI_PC_REG_REVERSE = 4,
     58 
     59 	SI_PC_FAKE = 8,
     60 };
     61 
     62 struct si_pc_block_base {
     63 	const char *name;
     64 	unsigned num_counters;
     65 	unsigned flags;
     66 
     67 	unsigned select_or;
     68 	unsigned select0;
     69 	unsigned counter0_lo;
     70 	unsigned *select;
     71 	unsigned *counters;
     72 	unsigned num_multi;
     73 	unsigned num_prelude;
     74 	unsigned layout;
     75 };
     76 
     77 struct si_pc_block {
     78 	struct si_pc_block_base *b;
     79 	unsigned selectors;
     80 	unsigned instances;
     81 };
     82 
     83 /* The order is chosen to be compatible with GPUPerfStudio's hardcoding of
     84  * performance counter group IDs.
     85  */
     86 static const char * const si_pc_shader_type_suffixes[] = {
     87 	"", "_ES", "_GS", "_VS", "_PS", "_LS", "_HS", "_CS"
     88 };
     89 
     90 static const unsigned si_pc_shader_type_bits[] = {
     91 	0x7f,
     92 	S_036780_ES_EN(1),
     93 	S_036780_GS_EN(1),
     94 	S_036780_VS_EN(1),
     95 	S_036780_PS_EN(1),
     96 	S_036780_LS_EN(1),
     97 	S_036780_HS_EN(1),
     98 	S_036780_CS_EN(1),
     99 };
    100 
    101 static struct si_pc_block_base cik_CB = {
    102 	.name = "CB",
    103 	.num_counters = 4,
    104 	.flags = R600_PC_BLOCK_SE | R600_PC_BLOCK_INSTANCE_GROUPS,
    105 
    106 	.select0 = R_037000_CB_PERFCOUNTER_FILTER,
    107 	.counter0_lo = R_035018_CB_PERFCOUNTER0_LO,
    108 	.num_multi = 1,
    109 	.num_prelude = 1,
    110 	.layout = SI_PC_MULTI_ALTERNATE,
    111 };
    112 
    113 static unsigned cik_CPC_select[] = {
    114 	R_036024_CPC_PERFCOUNTER0_SELECT,
    115 	R_036010_CPC_PERFCOUNTER0_SELECT1,
    116 	R_03600C_CPC_PERFCOUNTER1_SELECT,
    117 };
    118 static struct si_pc_block_base cik_CPC = {
    119 	.name = "CPC",
    120 	.num_counters = 2,
    121 
    122 	.select = cik_CPC_select,
    123 	.counter0_lo = R_034018_CPC_PERFCOUNTER0_LO,
    124 	.num_multi = 1,
    125 	.layout = SI_PC_MULTI_CUSTOM | SI_PC_REG_REVERSE,
    126 };
    127 
    128 static struct si_pc_block_base cik_CPF = {
    129 	.name = "CPF",
    130 	.num_counters = 2,
    131 
    132 	.select0 = R_03601C_CPF_PERFCOUNTER0_SELECT,
    133 	.counter0_lo = R_034028_CPF_PERFCOUNTER0_LO,
    134 	.num_multi = 1,
    135 	.layout = SI_PC_MULTI_ALTERNATE | SI_PC_REG_REVERSE,
    136 };
    137 
    138 static struct si_pc_block_base cik_CPG = {
    139 	.name = "CPG",
    140 	.num_counters = 2,
    141 
    142 	.select0 = R_036008_CPG_PERFCOUNTER0_SELECT,
    143 	.counter0_lo = R_034008_CPG_PERFCOUNTER0_LO,
    144 	.num_multi = 1,
    145 	.layout = SI_PC_MULTI_ALTERNATE | SI_PC_REG_REVERSE,
    146 };
    147 
    148 static struct si_pc_block_base cik_DB = {
    149 	.name = "DB",
    150 	.num_counters = 4,
    151 	.flags = R600_PC_BLOCK_SE | R600_PC_BLOCK_INSTANCE_GROUPS,
    152 
    153 	.select0 = R_037100_DB_PERFCOUNTER0_SELECT,
    154 	.counter0_lo = R_035100_DB_PERFCOUNTER0_LO,
    155 	.num_multi = 3, // really only 2, but there's a gap between registers
    156 	.layout = SI_PC_MULTI_ALTERNATE,
    157 };
    158 
    159 static struct si_pc_block_base cik_GDS = {
    160 	.name = "GDS",
    161 	.num_counters = 4,
    162 
    163 	.select0 = R_036A00_GDS_PERFCOUNTER0_SELECT,
    164 	.counter0_lo = R_034A00_GDS_PERFCOUNTER0_LO,
    165 	.num_multi = 1,
    166 	.layout = SI_PC_MULTI_TAIL,
    167 };
    168 
    169 static unsigned cik_GRBM_counters[] = {
    170 	R_034100_GRBM_PERFCOUNTER0_LO,
    171 	R_03410C_GRBM_PERFCOUNTER1_LO,
    172 };
    173 static struct si_pc_block_base cik_GRBM = {
    174 	.name = "GRBM",
    175 	.num_counters = 2,
    176 
    177 	.select0 = R_036100_GRBM_PERFCOUNTER0_SELECT,
    178 	.counters = cik_GRBM_counters,
    179 };
    180 
    181 static struct si_pc_block_base cik_GRBMSE = {
    182 	.name = "GRBMSE",
    183 	.num_counters = 4,
    184 
    185 	.select0 = R_036108_GRBM_SE0_PERFCOUNTER_SELECT,
    186 	.counter0_lo = R_034114_GRBM_SE0_PERFCOUNTER_LO,
    187 };
    188 
    189 static struct si_pc_block_base cik_IA = {
    190 	.name = "IA",
    191 	.num_counters = 4,
    192 
    193 	.select0 = R_036210_IA_PERFCOUNTER0_SELECT,
    194 	.counter0_lo = R_034220_IA_PERFCOUNTER0_LO,
    195 	.num_multi = 1,
    196 	.layout = SI_PC_MULTI_TAIL,
    197 };
    198 
    199 static struct si_pc_block_base cik_PA_SC = {
    200 	.name = "PA_SC",
    201 	.num_counters = 8,
    202 	.flags = R600_PC_BLOCK_SE,
    203 
    204 	.select0 = R_036500_PA_SC_PERFCOUNTER0_SELECT,
    205 	.counter0_lo = R_034500_PA_SC_PERFCOUNTER0_LO,
    206 	.num_multi = 1,
    207 	.layout = SI_PC_MULTI_ALTERNATE,
    208 };
    209 
    210 /* According to docs, PA_SU counters are only 48 bits wide. */
    211 static struct si_pc_block_base cik_PA_SU = {
    212 	.name = "PA_SU",
    213 	.num_counters = 4,
    214 	.flags = R600_PC_BLOCK_SE,
    215 
    216 	.select0 = R_036400_PA_SU_PERFCOUNTER0_SELECT,
    217 	.counter0_lo = R_034400_PA_SU_PERFCOUNTER0_LO,
    218 	.num_multi = 2,
    219 	.layout = SI_PC_MULTI_ALTERNATE,
    220 };
    221 
    222 static struct si_pc_block_base cik_SPI = {
    223 	.name = "SPI",
    224 	.num_counters = 6,
    225 	.flags = R600_PC_BLOCK_SE,
    226 
    227 	.select0 = R_036600_SPI_PERFCOUNTER0_SELECT,
    228 	.counter0_lo = R_034604_SPI_PERFCOUNTER0_LO,
    229 	.num_multi = 4,
    230 	.layout = SI_PC_MULTI_BLOCK,
    231 };
    232 
    233 static struct si_pc_block_base cik_SQ = {
    234 	.name = "SQ",
    235 	.num_counters = 16,
    236 	.flags = R600_PC_BLOCK_SE | R600_PC_BLOCK_SHADER,
    237 
    238 	.select0 = R_036700_SQ_PERFCOUNTER0_SELECT,
    239 	.select_or = S_036700_SQC_BANK_MASK(15) |
    240 			S_036700_SQC_CLIENT_MASK(15) |
    241 			S_036700_SIMD_MASK(15),
    242 	.counter0_lo = R_034700_SQ_PERFCOUNTER0_LO,
    243 };
    244 
    245 static struct si_pc_block_base cik_SX = {
    246 	.name = "SX",
    247 	.num_counters = 4,
    248 	.flags = R600_PC_BLOCK_SE,
    249 
    250 	.select0 = R_036900_SX_PERFCOUNTER0_SELECT,
    251 	.counter0_lo = R_034900_SX_PERFCOUNTER0_LO,
    252 	.num_multi = 2,
    253 	.layout = SI_PC_MULTI_TAIL,
    254 };
    255 
    256 static struct si_pc_block_base cik_TA = {
    257 	.name = "TA",
    258 	.num_counters = 2,
    259 	.flags = R600_PC_BLOCK_SE | R600_PC_BLOCK_INSTANCE_GROUPS | R600_PC_BLOCK_SHADER_WINDOWED,
    260 
    261 	.select0 = R_036B00_TA_PERFCOUNTER0_SELECT,
    262 	.counter0_lo = R_034B00_TA_PERFCOUNTER0_LO,
    263 	.num_multi = 1,
    264 	.layout = SI_PC_MULTI_ALTERNATE,
    265 };
    266 
    267 static struct si_pc_block_base cik_TD = {
    268 	.name = "TD",
    269 	.num_counters = 2,
    270 	.flags = R600_PC_BLOCK_SE | R600_PC_BLOCK_INSTANCE_GROUPS | R600_PC_BLOCK_SHADER_WINDOWED,
    271 
    272 	.select0 = R_036C00_TD_PERFCOUNTER0_SELECT,
    273 	.counter0_lo = R_034C00_TD_PERFCOUNTER0_LO,
    274 	.num_multi = 1,
    275 	.layout = SI_PC_MULTI_ALTERNATE,
    276 };
    277 
    278 static struct si_pc_block_base cik_TCA = {
    279 	.name = "TCA",
    280 	.num_counters = 4,
    281 	.flags = R600_PC_BLOCK_INSTANCE_GROUPS,
    282 
    283 	.select0 = R_036E40_TCA_PERFCOUNTER0_SELECT,
    284 	.counter0_lo = R_034E40_TCA_PERFCOUNTER0_LO,
    285 	.num_multi = 2,
    286 	.layout = SI_PC_MULTI_ALTERNATE,
    287 };
    288 
    289 static struct si_pc_block_base cik_TCC = {
    290 	.name = "TCC",
    291 	.num_counters = 4,
    292 	.flags = R600_PC_BLOCK_INSTANCE_GROUPS,
    293 
    294 	.select0 = R_036E00_TCC_PERFCOUNTER0_SELECT,
    295 	.counter0_lo = R_034E00_TCC_PERFCOUNTER0_LO,
    296 	.num_multi = 2,
    297 	.layout = SI_PC_MULTI_ALTERNATE,
    298 };
    299 
    300 static struct si_pc_block_base cik_TCP = {
    301 	.name = "TCP",
    302 	.num_counters = 4,
    303 	.flags = R600_PC_BLOCK_SE | R600_PC_BLOCK_INSTANCE_GROUPS | R600_PC_BLOCK_SHADER_WINDOWED,
    304 
    305 	.select0 = R_036D00_TCP_PERFCOUNTER0_SELECT,
    306 	.counter0_lo = R_034D00_TCP_PERFCOUNTER0_LO,
    307 	.num_multi = 2,
    308 	.layout = SI_PC_MULTI_ALTERNATE,
    309 };
    310 
    311 static struct si_pc_block_base cik_VGT = {
    312 	.name = "VGT",
    313 	.num_counters = 4,
    314 	.flags = R600_PC_BLOCK_SE,
    315 
    316 	.select0 = R_036230_VGT_PERFCOUNTER0_SELECT,
    317 	.counter0_lo = R_034240_VGT_PERFCOUNTER0_LO,
    318 	.num_multi = 1,
    319 	.layout = SI_PC_MULTI_TAIL,
    320 };
    321 
    322 static struct si_pc_block_base cik_WD = {
    323 	.name = "WD",
    324 	.num_counters = 4,
    325 
    326 	.select0 = R_036200_WD_PERFCOUNTER0_SELECT,
    327 	.counter0_lo = R_034200_WD_PERFCOUNTER0_LO,
    328 };
    329 
    330 static struct si_pc_block_base cik_MC = {
    331 	.name = "MC",
    332 	.num_counters = 4,
    333 
    334 	.layout = SI_PC_FAKE,
    335 };
    336 
    337 static struct si_pc_block_base cik_SRBM = {
    338 	.name = "SRBM",
    339 	.num_counters = 2,
    340 
    341 	.layout = SI_PC_FAKE,
    342 };
    343 
    344 /* Both the number of instances and selectors varies between chips of the same
    345  * class. We only differentiate by class here and simply expose the maximum
    346  * number over all chips in a class.
    347  *
    348  * Unfortunately, GPUPerfStudio uses the order of performance counter groups
    349  * blindly once it believes it has identified the hardware, so the order of
    350  * blocks here matters.
    351  */
    352 static struct si_pc_block groups_CIK[] = {
    353 	{ &cik_CB, 226, 4 },
    354 	{ &cik_CPF, 17 },
    355 	{ &cik_DB, 257, 4 },
    356 	{ &cik_GRBM, 34 },
    357 	{ &cik_GRBMSE, 15 },
    358 	{ &cik_PA_SU, 153 },
    359 	{ &cik_PA_SC, 395 },
    360 	{ &cik_SPI, 186 },
    361 	{ &cik_SQ, 252 },
    362 	{ &cik_SX, 32 },
    363 	{ &cik_TA, 111, 11 },
    364 	{ &cik_TCA, 39, 2 },
    365 	{ &cik_TCC, 160, 16 },
    366 	{ &cik_TD, 55, 11 },
    367 	{ &cik_TCP, 154, 11 },
    368 	{ &cik_GDS, 121 },
    369 	{ &cik_VGT, 140 },
    370 	{ &cik_IA, 22 },
    371 	{ &cik_MC, 22 },
    372 	{ &cik_SRBM, 19 },
    373 	{ &cik_WD, 22 },
    374 	{ &cik_CPG, 46 },
    375 	{ &cik_CPC, 22 },
    376 
    377 };
    378 
    379 static struct si_pc_block groups_VI[] = {
    380 	{ &cik_CB, 396, 4 },
    381 	{ &cik_CPF, 19 },
    382 	{ &cik_DB, 257, 4 },
    383 	{ &cik_GRBM, 34 },
    384 	{ &cik_GRBMSE, 15 },
    385 	{ &cik_PA_SU, 153 },
    386 	{ &cik_PA_SC, 397 },
    387 	{ &cik_SPI, 197 },
    388 	{ &cik_SQ, 273 },
    389 	{ &cik_SX, 34 },
    390 	{ &cik_TA, 119, 16 },
    391 	{ &cik_TCA, 35, 2 },
    392 	{ &cik_TCC, 192, 16 },
    393 	{ &cik_TD, 55, 16 },
    394 	{ &cik_TCP, 180, 16 },
    395 	{ &cik_GDS, 121 },
    396 	{ &cik_VGT, 147 },
    397 	{ &cik_IA, 24 },
    398 	{ &cik_MC, 22 },
    399 	{ &cik_SRBM, 27 },
    400 	{ &cik_WD, 37 },
    401 	{ &cik_CPG, 48 },
    402 	{ &cik_CPC, 24 },
    403 
    404 };
    405 
    406 static void si_pc_get_size(struct r600_perfcounter_block *group,
    407 			unsigned count, unsigned *selectors,
    408 			unsigned *num_select_dw, unsigned *num_read_dw)
    409 {
    410 	struct si_pc_block *sigroup = (struct si_pc_block *)group->data;
    411 	struct si_pc_block_base *regs = sigroup->b;
    412 	unsigned layout_multi = regs->layout & SI_PC_MULTI_MASK;
    413 
    414 	if (regs->layout & SI_PC_FAKE) {
    415 		*num_select_dw = 0;
    416 	} else if (layout_multi == SI_PC_MULTI_BLOCK) {
    417 		if (count < regs->num_multi)
    418 			*num_select_dw = 2 * (count + 2) + regs->num_prelude;
    419 		else
    420 			*num_select_dw = 2 + count + regs->num_multi + regs->num_prelude;
    421 	} else if (layout_multi == SI_PC_MULTI_TAIL) {
    422 		*num_select_dw = 4 + count + MIN2(count, regs->num_multi) + regs->num_prelude;
    423 	} else if (layout_multi == SI_PC_MULTI_CUSTOM) {
    424 		assert(regs->num_prelude == 0);
    425 		*num_select_dw = 3 * (count + MIN2(count, regs->num_multi));
    426 	} else {
    427 		assert(layout_multi == SI_PC_MULTI_ALTERNATE);
    428 
    429 		*num_select_dw = 2 + count + MIN2(count, regs->num_multi) + regs->num_prelude;
    430 	}
    431 
    432 	*num_read_dw = 6 * count;
    433 }
    434 
    435 static void si_pc_emit_instance(struct r600_common_context *ctx,
    436 				int se, int instance)
    437 {
    438 	struct radeon_winsys_cs *cs = ctx->gfx.cs;
    439 	unsigned value = S_030800_SH_BROADCAST_WRITES(1);
    440 
    441 	if (se >= 0) {
    442 		value |= S_030800_SE_INDEX(se);
    443 	} else {
    444 		value |= S_030800_SE_BROADCAST_WRITES(1);
    445 	}
    446 
    447 	if (instance >= 0) {
    448 		value |= S_030800_INSTANCE_INDEX(instance);
    449 	} else {
    450 		value |= S_030800_INSTANCE_BROADCAST_WRITES(1);
    451 	}
    452 
    453 	radeon_set_uconfig_reg(cs, R_030800_GRBM_GFX_INDEX, value);
    454 }
    455 
    456 static void si_pc_emit_shaders(struct r600_common_context *ctx,
    457 			       unsigned shaders)
    458 {
    459 	struct radeon_winsys_cs *cs = ctx->gfx.cs;
    460 
    461 	radeon_set_uconfig_reg_seq(cs, R_036780_SQ_PERFCOUNTER_CTRL, 2);
    462 	radeon_emit(cs, shaders & 0x7f);
    463 	radeon_emit(cs, 0xffffffff);
    464 }
    465 
    466 static void si_pc_emit_select(struct r600_common_context *ctx,
    467 		        struct r600_perfcounter_block *group,
    468 		        unsigned count, unsigned *selectors)
    469 {
    470 	struct si_pc_block *sigroup = (struct si_pc_block *)group->data;
    471 	struct si_pc_block_base *regs = sigroup->b;
    472 	struct radeon_winsys_cs *cs = ctx->gfx.cs;
    473 	unsigned idx;
    474 	unsigned layout_multi = regs->layout & SI_PC_MULTI_MASK;
    475 	unsigned dw;
    476 
    477 	assert(count <= regs->num_counters);
    478 
    479 	if (regs->layout & SI_PC_FAKE)
    480 		return;
    481 
    482 	if (layout_multi == SI_PC_MULTI_BLOCK) {
    483 		assert(!(regs->layout & SI_PC_REG_REVERSE));
    484 
    485 		dw = count + regs->num_prelude;
    486 		if (count >= regs->num_multi)
    487 			dw += regs->num_multi;
    488 		radeon_set_uconfig_reg_seq(cs, regs->select0, dw);
    489 		for (idx = 0; idx < regs->num_prelude; ++idx)
    490 			radeon_emit(cs, 0);
    491 		for (idx = 0; idx < MIN2(count, regs->num_multi); ++idx)
    492 			radeon_emit(cs, selectors[idx] | regs->select_or);
    493 
    494 		if (count < regs->num_multi) {
    495 			unsigned select1 =
    496 				regs->select0 + 4 * regs->num_multi;
    497 			radeon_set_uconfig_reg_seq(cs, select1, count);
    498 		}
    499 
    500 		for (idx = 0; idx < MIN2(count, regs->num_multi); ++idx)
    501 			radeon_emit(cs, 0);
    502 
    503 		if (count > regs->num_multi) {
    504 			for (idx = regs->num_multi; idx < count; ++idx)
    505 				radeon_emit(cs, selectors[idx] | regs->select_or);
    506 		}
    507 	} else if (layout_multi == SI_PC_MULTI_TAIL) {
    508 		unsigned select1, select1_count;
    509 
    510 		assert(!(regs->layout & SI_PC_REG_REVERSE));
    511 
    512 		radeon_set_uconfig_reg_seq(cs, regs->select0, count + regs->num_prelude);
    513 		for (idx = 0; idx < regs->num_prelude; ++idx)
    514 			radeon_emit(cs, 0);
    515 		for (idx = 0; idx < count; ++idx)
    516 			radeon_emit(cs, selectors[idx] | regs->select_or);
    517 
    518 		select1 = regs->select0 + 4 * regs->num_counters;
    519 		select1_count = MIN2(count, regs->num_multi);
    520 		radeon_set_uconfig_reg_seq(cs, select1, select1_count);
    521 		for (idx = 0; idx < select1_count; ++idx)
    522 			radeon_emit(cs, 0);
    523 	} else if (layout_multi == SI_PC_MULTI_CUSTOM) {
    524 		unsigned *reg = regs->select;
    525 		for (idx = 0; idx < count; ++idx) {
    526 			radeon_set_uconfig_reg(cs, *reg++, selectors[idx] | regs->select_or);
    527 			if (idx < regs->num_multi)
    528 				radeon_set_uconfig_reg(cs, *reg++, 0);
    529 		}
    530 	} else {
    531 		assert(layout_multi == SI_PC_MULTI_ALTERNATE);
    532 
    533 		unsigned reg_base = regs->select0;
    534 		unsigned reg_count = count + MIN2(count, regs->num_multi);
    535 		reg_count += regs->num_prelude;
    536 
    537 		if (!(regs->layout & SI_PC_REG_REVERSE)) {
    538 			radeon_set_uconfig_reg_seq(cs, reg_base, reg_count);
    539 
    540 			for (idx = 0; idx < regs->num_prelude; ++idx)
    541 				radeon_emit(cs, 0);
    542 			for (idx = 0; idx < count; ++idx) {
    543 				radeon_emit(cs, selectors[idx] | regs->select_or);
    544 				if (idx < regs->num_multi)
    545 					radeon_emit(cs, 0);
    546 			}
    547 		} else {
    548 			reg_base -= (reg_count - 1) * 4;
    549 			radeon_set_uconfig_reg_seq(cs, reg_base, reg_count);
    550 
    551 			for (idx = count; idx > 0; --idx) {
    552 				if (idx <= regs->num_multi)
    553 					radeon_emit(cs, 0);
    554 				radeon_emit(cs, selectors[idx - 1] | regs->select_or);
    555 			}
    556 			for (idx = 0; idx < regs->num_prelude; ++idx)
    557 				radeon_emit(cs, 0);
    558 		}
    559 	}
    560 }
    561 
    562 static void si_pc_emit_start(struct r600_common_context *ctx,
    563 			     struct r600_resource *buffer, uint64_t va)
    564 {
    565 	struct radeon_winsys_cs *cs = ctx->gfx.cs;
    566 
    567 	radeon_add_to_buffer_list(ctx, &ctx->gfx, buffer,
    568 				  RADEON_USAGE_WRITE, RADEON_PRIO_QUERY);
    569 
    570 	radeon_emit(cs, PKT3(PKT3_COPY_DATA, 4, 0));
    571 	radeon_emit(cs, COPY_DATA_SRC_SEL(COPY_DATA_IMM) |
    572 			COPY_DATA_DST_SEL(COPY_DATA_MEM));
    573 	radeon_emit(cs, 1); /* immediate */
    574 	radeon_emit(cs, 0); /* unused */
    575 	radeon_emit(cs, va);
    576 	radeon_emit(cs, va >> 32);
    577 
    578 	radeon_set_uconfig_reg(cs, R_036020_CP_PERFMON_CNTL,
    579 			       S_036020_PERFMON_STATE(V_036020_DISABLE_AND_RESET));
    580 	radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
    581 	radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_PERFCOUNTER_START) | EVENT_INDEX(0));
    582 	radeon_set_uconfig_reg(cs, R_036020_CP_PERFMON_CNTL,
    583 			       S_036020_PERFMON_STATE(V_036020_START_COUNTING));
    584 }
    585 
    586 /* Note: The buffer was already added in si_pc_emit_start, so we don't have to
    587  * do it again in here. */
    588 static void si_pc_emit_stop(struct r600_common_context *ctx,
    589 			    struct r600_resource *buffer, uint64_t va)
    590 {
    591 	struct radeon_winsys_cs *cs = ctx->gfx.cs;
    592 
    593 	r600_gfx_write_event_eop(ctx, EVENT_TYPE_BOTTOM_OF_PIPE_TS, 0, 1,
    594 				 buffer, va, 1, 0);
    595 	r600_gfx_wait_fence(ctx, va, 0, 0xffffffff);
    596 
    597 	radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
    598 	radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_PERFCOUNTER_SAMPLE) | EVENT_INDEX(0));
    599 	radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0));
    600 	radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_PERFCOUNTER_STOP) | EVENT_INDEX(0));
    601 	radeon_set_uconfig_reg(cs, R_036020_CP_PERFMON_CNTL,
    602 			       S_036020_PERFMON_STATE(V_036020_STOP_COUNTING) |
    603 			       S_036020_PERFMON_SAMPLE_ENABLE(1));
    604 }
    605 
    606 static void si_pc_emit_read(struct r600_common_context *ctx,
    607 			    struct r600_perfcounter_block *group,
    608 			    unsigned count, unsigned *selectors,
    609 			    struct r600_resource *buffer, uint64_t va)
    610 {
    611 	struct si_pc_block *sigroup = (struct si_pc_block *)group->data;
    612 	struct si_pc_block_base *regs = sigroup->b;
    613 	struct radeon_winsys_cs *cs = ctx->gfx.cs;
    614 	unsigned idx;
    615 	unsigned reg = regs->counter0_lo;
    616 	unsigned reg_delta = 8;
    617 
    618 	if (!(regs->layout & SI_PC_FAKE)) {
    619 		if (regs->layout & SI_PC_REG_REVERSE)
    620 			reg_delta = -reg_delta;
    621 
    622 		for (idx = 0; idx < count; ++idx) {
    623 			if (regs->counters)
    624 				reg = regs->counters[idx];
    625 
    626 			radeon_emit(cs, PKT3(PKT3_COPY_DATA, 4, 0));
    627 			radeon_emit(cs, COPY_DATA_SRC_SEL(COPY_DATA_PERF) |
    628 					COPY_DATA_DST_SEL(COPY_DATA_MEM) |
    629 					COPY_DATA_COUNT_SEL); /* 64 bits */
    630 			radeon_emit(cs, reg >> 2);
    631 			radeon_emit(cs, 0); /* unused */
    632 			radeon_emit(cs, va);
    633 			radeon_emit(cs, va >> 32);
    634 			va += sizeof(uint64_t);
    635 			reg += reg_delta;
    636 		}
    637 	} else {
    638 		for (idx = 0; idx < count; ++idx) {
    639 			radeon_emit(cs, PKT3(PKT3_COPY_DATA, 4, 0));
    640 			radeon_emit(cs, COPY_DATA_SRC_SEL(COPY_DATA_IMM) |
    641 					COPY_DATA_DST_SEL(COPY_DATA_MEM) |
    642 					COPY_DATA_COUNT_SEL);
    643 			radeon_emit(cs, 0); /* immediate */
    644 			radeon_emit(cs, 0);
    645 			radeon_emit(cs, va);
    646 			radeon_emit(cs, va >> 32);
    647 			va += sizeof(uint64_t);
    648 		}
    649 	}
    650 }
    651 
    652 static void si_pc_cleanup(struct r600_common_screen *rscreen)
    653 {
    654 	r600_perfcounters_do_destroy(rscreen->perfcounters);
    655 	rscreen->perfcounters = NULL;
    656 }
    657 
    658 void si_init_perfcounters(struct si_screen *screen)
    659 {
    660 	struct r600_perfcounters *pc;
    661 	struct si_pc_block *blocks;
    662 	unsigned num_blocks;
    663 	unsigned i;
    664 
    665 	switch (screen->b.chip_class) {
    666 	case CIK:
    667 		blocks = groups_CIK;
    668 		num_blocks = ARRAY_SIZE(groups_CIK);
    669 		break;
    670 	case VI:
    671 		blocks = groups_VI;
    672 		num_blocks = ARRAY_SIZE(groups_VI);
    673 		break;
    674 	case SI:
    675 	default:
    676 		return; /* not implemented */
    677 	}
    678 
    679 	if (screen->b.info.max_sh_per_se != 1) {
    680 		/* This should not happen on non-SI chips. */
    681 		fprintf(stderr, "si_init_perfcounters: max_sh_per_se = %d not "
    682 			"supported (inaccurate performance counters)\n",
    683 			screen->b.info.max_sh_per_se);
    684 	}
    685 
    686 	pc = CALLOC_STRUCT(r600_perfcounters);
    687 	if (!pc)
    688 		return;
    689 
    690 	pc->num_start_cs_dwords = 14;
    691 	pc->num_stop_cs_dwords = 14 + r600_gfx_write_fence_dwords(&screen->b);
    692 	pc->num_instance_cs_dwords = 3;
    693 	pc->num_shaders_cs_dwords = 4;
    694 
    695 	pc->num_shader_types = ARRAY_SIZE(si_pc_shader_type_bits);
    696 	pc->shader_type_suffixes = si_pc_shader_type_suffixes;
    697 	pc->shader_type_bits = si_pc_shader_type_bits;
    698 
    699 	pc->get_size = si_pc_get_size;
    700 	pc->emit_instance = si_pc_emit_instance;
    701 	pc->emit_shaders = si_pc_emit_shaders;
    702 	pc->emit_select = si_pc_emit_select;
    703 	pc->emit_start = si_pc_emit_start;
    704 	pc->emit_stop = si_pc_emit_stop;
    705 	pc->emit_read = si_pc_emit_read;
    706 	pc->cleanup = si_pc_cleanup;
    707 
    708 	if (!r600_perfcounters_init(pc, num_blocks))
    709 		goto error;
    710 
    711 	for (i = 0; i < num_blocks; ++i) {
    712 		struct si_pc_block *block = &blocks[i];
    713 		unsigned instances = block->instances;
    714 
    715 		if (!strcmp(block->b->name, "IA")) {
    716 			if (screen->b.info.max_se > 2)
    717 				instances = 2;
    718 		}
    719 
    720 		r600_perfcounters_add_block(&screen->b, pc,
    721 					    block->b->name,
    722 					    block->b->flags,
    723 					    block->b->num_counters,
    724 					    block->selectors,
    725 					    instances,
    726 					    block);
    727 	}
    728 
    729 	screen->b.perfcounters = pc;
    730 	return;
    731 
    732 error:
    733 	r600_perfcounters_do_destroy(pc);
    734 }
    735