src/gallium/drivers/r600/eg_asm.c

   1 /*
   2  * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23 #include "r600_pipe.h"
  24 #include "r600_opcodes.h"
  25 #include "r600_shader.h"
  26
  27 #include "util/u_memory.h"
  28 #include "eg_sq.h"
  29 #include <errno.h>
  30
  31 int eg_bytecode_cf_build(struct r600_bytecode *bc, struct r600_bytecode_cf *cf)
  32 {
  33         unsigned id = cf->id;
  34
  35         if (cf->op == CF_NATIVE) {
  36                 bc->bytecode[id++] = cf->isa[0];
  37                 bc->bytecode[id++] = cf->isa[1];
  38         } else {
  39                 const struct cf_op_info *cfop = r600_isa_cf(cf->op);
  40                 unsigned opcode = r600_isa_cf_opcode(bc->isa->hw_class, cf->op);
  41                 if (cfop->flags & CF_ALU) { /* ALU clauses */
  42
  43                         /* prepend ALU_EXTENDED if we need more than 2 kcache sets */
  44                         if (cf->eg_alu_extended) {
  45                                 bc->bytecode[id++] =
  46                                                 S_SQ_CF_ALU_WORD0_EXT_KCACHE_BANK_INDEX_MODE0(cf->kcache[0].index_mode) |
  47                                                 S_SQ_CF_ALU_WORD0_EXT_KCACHE_BANK_INDEX_MODE1(cf->kcache[1].index_mode) |
  48                                                 S_SQ_CF_ALU_WORD0_EXT_KCACHE_BANK_INDEX_MODE2(cf->kcache[2].index_mode) |
  49                                                 S_SQ_CF_ALU_WORD0_EXT_KCACHE_BANK_INDEX_MODE3(cf->kcache[3].index_mode) |
  50                                                 S_SQ_CF_ALU_WORD0_EXT_KCACHE_BANK2(cf->kcache[2].bank) |
  51                                                 S_SQ_CF_ALU_WORD0_EXT_KCACHE_BANK3(cf->kcache[3].bank) |
  52                                                 S_SQ_CF_ALU_WORD0_EXT_KCACHE_MODE2(cf->kcache[2].mode);
  53                                 bc->bytecode[id++] =
  54                                                 S_SQ_CF_ALU_WORD1_EXT_CF_INST(
  55                                                         r600_isa_cf_opcode(bc->isa->hw_class, CF_OP_ALU_EXT)) |
  56                                                 S_SQ_CF_ALU_WORD1_EXT_KCACHE_MODE3(cf->kcache[3].mode) |
  57                                                 S_SQ_CF_ALU_WORD1_EXT_KCACHE_ADDR2(cf->kcache[2].addr) |
  58                                                 S_SQ_CF_ALU_WORD1_EXT_KCACHE_ADDR3(cf->kcache[3].addr) |
  59                                                 S_SQ_CF_ALU_WORD1_EXT_BARRIER(1);
  60                         }
  61                         bc->bytecode[id++] = S_SQ_CF_ALU_WORD0_ADDR(cf->addr >> 1) |
  62                                         S_SQ_CF_ALU_WORD0_KCACHE_MODE0(cf->kcache[0].mode) |
  63                                         S_SQ_CF_ALU_WORD0_KCACHE_BANK0(cf->kcache[0].bank) |
  64                                         S_SQ_CF_ALU_WORD0_KCACHE_BANK1(cf->kcache[1].bank);
  65                         bc->bytecode[id++] = S_SQ_CF_ALU_WORD1_CF_INST(opcode) |
  66                                         S_SQ_CF_ALU_WORD1_KCACHE_MODE1(cf->kcache[1].mode) |
  67                                         S_SQ_CF_ALU_WORD1_KCACHE_ADDR0(cf->kcache[0].addr) |
  68                                         S_SQ_CF_ALU_WORD1_KCACHE_ADDR1(cf->kcache[1].addr) |
  69                                         S_SQ_CF_ALU_WORD1_BARRIER(1) |
  70                                         S_SQ_CF_ALU_WORD1_COUNT((cf->ndw / 2) - 1);
  71                 } else if (cfop->flags & CF_CLAUSE) {
  72                         /* CF_TEX/VTX (CF_ALU already handled above) */
  73                         bc->bytecode[id++] = S_SQ_CF_WORD0_ADDR(cf->addr >> 1);
  74                         bc->bytecode[id++] = S_SQ_CF_WORD1_CF_INST(opcode) |
  75                                         S_SQ_CF_WORD1_BARRIER(1) |
  76                                         S_SQ_CF_WORD1_COUNT((cf->ndw / 4) - 1);
  77                 } else if (cfop->flags & CF_EXP) {
  78                         /* EXPORT instructions */
  79                         bc->bytecode[id++] = S_SQ_CF_ALLOC_EXPORT_WORD0_RW_GPR(cf->output.gpr) |
  80                                         S_SQ_CF_ALLOC_EXPORT_WORD0_ELEM_SIZE(cf->output.elem_size) |
  81                                         S_SQ_CF_ALLOC_EXPORT_WORD0_ARRAY_BASE(cf->output.array_base) |
  82                                         S_SQ_CF_ALLOC_EXPORT_WORD0_TYPE(cf->output.type) |
  83                                         S_SQ_CF_ALLOC_EXPORT_WORD0_INDEX_GPR(cf->output.index_gpr);
  84                         bc->bytecode[id] =
  85                                         S_SQ_CF_ALLOC_EXPORT_WORD1_BURST_COUNT(cf->output.burst_count - 1) |
  86                                         S_SQ_CF_ALLOC_EXPORT_WORD1_SWIZ_SEL_X(cf->output.swizzle_x) |
  87                                         S_SQ_CF_ALLOC_EXPORT_WORD1_SWIZ_SEL_Y(cf->output.swizzle_y) |
  88                                         S_SQ_CF_ALLOC_EXPORT_WORD1_SWIZ_SEL_Z(cf->output.swizzle_z) |
  89                                         S_SQ_CF_ALLOC_EXPORT_WORD1_SWIZ_SEL_W(cf->output.swizzle_w) |
  90                                         S_SQ_CF_ALLOC_EXPORT_WORD1_BARRIER(cf->barrier) |
  91                                         S_SQ_CF_ALLOC_EXPORT_WORD1_CF_INST(opcode);
  92
  93                         if (bc->chip_class == EVERGREEN) /* no EOP on cayman */
  94                                 bc->bytecode[id] |= S_SQ_CF_ALLOC_EXPORT_WORD1_END_OF_PROGRAM(cf->end_of_program);
  95                         id++;
  96                 } else if (cfop->flags & CF_MEM) {
  97                         /* MEM_STREAM, MEM_RING instructions */
  98                         bc->bytecode[id++] = S_SQ_CF_ALLOC_EXPORT_WORD0_RW_GPR(cf->output.gpr) |
  99                                         S_SQ_CF_ALLOC_EXPORT_WORD0_ELEM_SIZE(cf->output.elem_size) |
 100                                         S_SQ_CF_ALLOC_EXPORT_WORD0_ARRAY_BASE(cf->output.array_base) |
 101                                         S_SQ_CF_ALLOC_EXPORT_WORD0_TYPE(cf->output.type) |
 102                                         S_SQ_CF_ALLOC_EXPORT_WORD0_INDEX_GPR(cf->output.index_gpr);
 103                         bc->bytecode[id] = S_SQ_CF_ALLOC_EXPORT_WORD1_BURST_COUNT(cf->output.burst_count - 1) |
 104                                         S_SQ_CF_ALLOC_EXPORT_WORD1_BARRIER(cf->barrier) |
 105                                         S_SQ_CF_ALLOC_EXPORT_WORD1_CF_INST(opcode) |
 106                                         S_SQ_CF_ALLOC_EXPORT_WORD1_BUF_COMP_MASK(cf->output.comp_mask) |
 107                                         S_SQ_CF_ALLOC_EXPORT_WORD1_BUF_ARRAY_SIZE(cf->output.array_size);
 108                         if (bc->chip_class == EVERGREEN) /* no EOP on cayman */
 109                                 bc->bytecode[id] |= S_SQ_CF_ALLOC_EXPORT_WORD1_END_OF_PROGRAM(cf->end_of_program);
 110                         id++;
 111                 } else {
 112                         /* other instructions */
 113                         bc->bytecode[id++] = S_SQ_CF_WORD0_ADDR(cf->cf_addr >> 1);
 114                         bc->bytecode[id++] =  S_SQ_CF_WORD1_CF_INST(opcode)|
 115                                         S_SQ_CF_WORD1_BARRIER(1) |
 116                                         S_SQ_CF_WORD1_COND(cf->cond) |
 117                                         S_SQ_CF_WORD1_POP_COUNT(cf->pop_count) |
 118                                         S_SQ_CF_WORD1_COUNT(cf->count) |
 119                                         S_SQ_CF_WORD1_END_OF_PROGRAM(cf->end_of_program);
 120                 }
 121         }
 122         return 0;
 123 }
 124
 125 #if 0
 126 void eg_bytecode_export_read(struct r600_bytecode *bc,
 127                 struct r600_bytecode_output *output, uint32_t word0, uint32_t word1)
 128 {
 129         output->array_base = G_SQ_CF_ALLOC_EXPORT_WORD0_ARRAY_BASE(word0);
 130         output->type = G_SQ_CF_ALLOC_EXPORT_WORD0_TYPE(word0);
 131         output->gpr = G_SQ_CF_ALLOC_EXPORT_WORD0_RW_GPR(word0);
 132         output->elem_size = G_SQ_CF_ALLOC_EXPORT_WORD0_ELEM_SIZE(word0);
 133
 134         output->swizzle_x = G_SQ_CF_ALLOC_EXPORT_WORD1_SWIZ_SEL_X(word1);
 135         output->swizzle_y = G_SQ_CF_ALLOC_EXPORT_WORD1_SWIZ_SEL_Y(word1);
 136         output->swizzle_z = G_SQ_CF_ALLOC_EXPORT_WORD1_SWIZ_SEL_Z(word1);
 137         output->swizzle_w = G_SQ_CF_ALLOC_EXPORT_WORD1_SWIZ_SEL_W(word1);
 138         output->burst_count = G_SQ_CF_ALLOC_EXPORT_WORD1_BURST_COUNT(word1);
 139         output->end_of_program = G_SQ_CF_ALLOC_EXPORT_WORD1_END_OF_PROGRAM(word1);
 140         output->op = r600_isa_cf_by_opcode(bc->isa,
 141                         G_SQ_CF_ALLOC_EXPORT_WORD1_CF_INST(word1), /* is_cf_alu = */ 0 );
 142         output->barrier = G_SQ_CF_ALLOC_EXPORT_WORD1_BARRIER(word1);
 143         output->array_size = G_SQ_CF_ALLOC_EXPORT_WORD1_BUF_ARRAY_SIZE(word1);
 144         output->comp_mask = G_SQ_CF_ALLOC_EXPORT_WORD1_BUF_COMP_MASK(word1);
 145 }
 146 #endif
 147
 148 int egcm_load_index_reg(struct r600_bytecode *bc, unsigned id, bool inside_alu_clause)
 149 {
 150         struct r600_bytecode_alu alu;
 151         int r;
 152         unsigned type;
 153
 154         assert(id < 2);
 155         assert(bc->chip_class >= EVERGREEN);
 156
 157         if (bc->index_loaded[id])
 158                 return 0;
 159
 160         memset(&alu, 0, sizeof(alu));
 161         alu.op = ALU_OP1_MOVA_INT;
 162         alu.src[0].sel = bc->index_reg[id];
 163         alu.src[0].chan = 0;
 164         if (bc->chip_class == CAYMAN)
 165                 alu.dst.sel = id == 0 ? CM_V_SQ_MOVA_DST_CF_IDX0 : CM_V_SQ_MOVA_DST_CF_IDX1;
 166
 167         alu.last = 1;
 168         r = r600_bytecode_add_alu(bc, &alu);
 169         if (r)
 170                 return r;
 171
 172         bc->ar_loaded = 0; /* clobbered */
 173
 174         if (bc->chip_class == EVERGREEN) {
 175                 memset(&alu, 0, sizeof(alu));
 176                 alu.op = id == 0 ? ALU_OP0_SET_CF_IDX0 : ALU_OP0_SET_CF_IDX1;
 177                 alu.last = 1;
 178                 r = r600_bytecode_add_alu(bc, &alu);
 179                 if (r)
 180                         return r;
 181         }
 182
 183         /* Must split ALU group as index only applies to following group */
 184         if (inside_alu_clause) {
 185                 type = bc->cf_last->op;
 186                 if ((r = r600_bytecode_add_cf(bc))) {
 187                         return r;
 188                 }
 189                 bc->cf_last->op = type;
 190         }
 191
 192         bc->index_loaded[id] = 1;
 193
 194         return 0;
 195 }
 196
 197 int eg_bytecode_gds_build(struct r600_bytecode *bc, struct r600_bytecode_gds *gds, unsigned id)
 198 {
 199         unsigned opcode = r600_isa_fetch_opcode(bc->isa->hw_class, gds->op) >> 8;
 200         bc->bytecode[id++] = S_SQ_MEM_GDS_WORD0_MEM_INST(2) |
 201                 S_SQ_MEM_GDS_WORD0_MEM_OP(opcode) |
 202                 S_SQ_MEM_GDS_WORD0_SRC_GPR(gds->src_gpr) |
 203                 S_SQ_MEM_GDS_WORD0_SRC_REL(gds->src_rel) |
 204                 S_SQ_MEM_GDS_WORD0_SRC_SEL_X(gds->src_sel_x) |
 205                 S_SQ_MEM_GDS_WORD0_SRC_SEL_Y(gds->src_sel_y) |
 206                 S_SQ_MEM_GDS_WORD0_SRC_SEL_Z(gds->src_sel_z);
 207
 208         bc->bytecode[id++] = S_SQ_MEM_GDS_WORD1_DST_GPR(gds->dst_gpr) |
 209                 S_SQ_MEM_GDS_WORD1_DST_REL(gds->dst_rel) |
 210                 S_SQ_MEM_GDS_WORD1_GDS_OP(gds->gds_op) |
 211                 S_SQ_MEM_GDS_WORD1_SRC_GPR(gds->src_gpr2);
 212
 213         bc->bytecode[id++] = S_SQ_MEM_GDS_WORD2_DST_SEL_X(gds->dst_sel_x) |
 214                 S_SQ_MEM_GDS_WORD2_DST_SEL_Y(gds->dst_sel_y) |
 215                 S_SQ_MEM_GDS_WORD2_DST_SEL_Z(gds->dst_sel_z) |
 216                 S_SQ_MEM_GDS_WORD2_DST_SEL_W(gds->dst_sel_w);
 217         return 0;
 218 }
 219
 220 int eg_bytecode_alu_build(struct r600_bytecode *bc, struct r600_bytecode_alu *alu, unsigned id)
 221 {
 222         if (alu->is_lds_idx_op) {
 223                 assert(!alu->src[0].abs && !alu->src[1].abs && !alu->src[2].abs);
 224                 assert(!alu->src[0].neg && !alu->src[1].neg && !alu->src[2].neg);
 225                 bc->bytecode[id++] = S_SQ_ALU_WORD0_SRC0_SEL(alu->src[0].sel) |
 226                         S_SQ_ALU_WORD0_SRC0_REL(alu->src[0].rel) |
 227                         S_SQ_ALU_WORD0_SRC0_CHAN(alu->src[0].chan) |
 228                         S_SQ_ALU_WORD0_LDS_IDX_OP_IDX_OFFSET_4(alu->lds_idx >> 4) |
 229                         S_SQ_ALU_WORD0_SRC1_SEL(alu->src[1].sel) |
 230                         S_SQ_ALU_WORD0_SRC1_REL(alu->src[1].rel) |
 231                         S_SQ_ALU_WORD0_SRC1_CHAN(alu->src[1].chan) |
 232                         S_SQ_ALU_WORD0_LDS_IDX_OP_IDX_OFFSET_5(alu->lds_idx >> 5) |
 233                         S_SQ_ALU_WORD0_INDEX_MODE(alu->index_mode) |
 234                         S_SQ_ALU_WORD0_PRED_SEL(alu->pred_sel) |
 235                         S_SQ_ALU_WORD0_LAST(alu->last);
 236         } else {
 237                 bc->bytecode[id++] = S_SQ_ALU_WORD0_SRC0_SEL(alu->src[0].sel) |
 238                         S_SQ_ALU_WORD0_SRC0_REL(alu->src[0].rel) |
 239                         S_SQ_ALU_WORD0_SRC0_CHAN(alu->src[0].chan) |
 240                         S_SQ_ALU_WORD0_SRC0_NEG(alu->src[0].neg) |
 241                         S_SQ_ALU_WORD0_SRC1_SEL(alu->src[1].sel) |
 242                         S_SQ_ALU_WORD0_SRC1_REL(alu->src[1].rel) |
 243                         S_SQ_ALU_WORD0_SRC1_CHAN(alu->src[1].chan) |
 244                         S_SQ_ALU_WORD0_SRC1_NEG(alu->src[1].neg) |
 245                         S_SQ_ALU_WORD0_PRED_SEL(alu->pred_sel) |
 246                         S_SQ_ALU_WORD0_LAST(alu->last);
 247         }
 248
 249         /* don't replace gpr by pv or ps for destination register */
 250         if (alu->is_lds_idx_op) {
 251                 unsigned lds_op = r600_isa_alu_opcode(bc->isa->hw_class, alu->op);
 252                 bc->bytecode[id++] =
 253                         S_SQ_ALU_WORD1_OP3_SRC2_SEL(alu->src[2].sel) |
 254                         S_SQ_ALU_WORD1_OP3_SRC2_REL(alu->src[2].rel) |
 255                         S_SQ_ALU_WORD1_OP3_SRC2_CHAN(alu->src[2].chan) |
 256                         S_SQ_ALU_WORD1_LDS_IDX_OP_IDX_OFFSET_1(alu->lds_idx >> 1) |
 257
 258                         S_SQ_ALU_WORD1_OP3_ALU_INST(lds_op & 0xff) |
 259                         S_SQ_ALU_WORD1_BANK_SWIZZLE(alu->bank_swizzle) |
 260                         S_SQ_ALU_WORD1_LDS_IDX_OP_LDS_OP((lds_op >> 8) & 0xff) |
 261                         S_SQ_ALU_WORD1_LDS_IDX_OP_IDX_OFFSET_0(alu->lds_idx) |
 262                         S_SQ_ALU_WORD1_LDS_IDX_OP_IDX_OFFSET_2(alu->lds_idx >> 2) |
 263                         S_SQ_ALU_WORD1_DST_CHAN(alu->dst.chan) |
 264                         S_SQ_ALU_WORD1_LDS_IDX_OP_IDX_OFFSET_3(alu->lds_idx >> 3);
 265
 266         } else if (alu->is_op3) {
 267                 assert(!alu->src[0].abs && !alu->src[1].abs && !alu->src[2].abs);
 268                 bc->bytecode[id++] = S_SQ_ALU_WORD1_DST_GPR(alu->dst.sel) |
 269                                         S_SQ_ALU_WORD1_DST_CHAN(alu->dst.chan) |
 270                                         S_SQ_ALU_WORD1_DST_REL(alu->dst.rel) |
 271                                         S_SQ_ALU_WORD1_CLAMP(alu->dst.clamp) |
 272                                         S_SQ_ALU_WORD1_OP3_SRC2_SEL(alu->src[2].sel) |
 273                                         S_SQ_ALU_WORD1_OP3_SRC2_REL(alu->src[2].rel) |
 274                                         S_SQ_ALU_WORD1_OP3_SRC2_CHAN(alu->src[2].chan) |
 275                                         S_SQ_ALU_WORD1_OP3_SRC2_NEG(alu->src[2].neg) |
 276                                         S_SQ_ALU_WORD1_OP3_ALU_INST(r600_isa_alu_opcode(bc->isa->hw_class, alu->op)) |
 277                                         S_SQ_ALU_WORD1_BANK_SWIZZLE(alu->bank_swizzle);
 278         } else {
 279                 bc->bytecode[id++] = S_SQ_ALU_WORD1_DST_GPR(alu->dst.sel) |
 280                                         S_SQ_ALU_WORD1_DST_CHAN(alu->dst.chan) |
 281                                         S_SQ_ALU_WORD1_DST_REL(alu->dst.rel) |
 282                                         S_SQ_ALU_WORD1_CLAMP(alu->dst.clamp) |
 283                                         S_SQ_ALU_WORD1_OP2_SRC0_ABS(alu->src[0].abs) |
 284                                         S_SQ_ALU_WORD1_OP2_SRC1_ABS(alu->src[1].abs) |
 285                                         S_SQ_ALU_WORD1_OP2_WRITE_MASK(alu->dst.write) |
 286                                         S_SQ_ALU_WORD1_OP2_OMOD(alu->omod) |
 287                                         S_SQ_ALU_WORD1_OP2_ALU_INST(r600_isa_alu_opcode(bc->isa->hw_class, alu->op)) |
 288                                         S_SQ_ALU_WORD1_BANK_SWIZZLE(alu->bank_swizzle) |
 289                                         S_SQ_ALU_WORD1_OP2_UPDATE_EXECUTE_MASK(alu->execute_mask) |
 290                                         S_SQ_ALU_WORD1_OP2_UPDATE_PRED(alu->update_pred);
 291         }
 292         return 0;
 293 }