diff options
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/r600/r600_shader.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c index 7b79646ba89..175c09b9501 100644 --- a/src/gallium/drivers/r600/r600_shader.c +++ b/src/gallium/drivers/r600/r600_shader.c @@ -4191,6 +4191,172 @@ static int tgsi_ssg(struct r600_shader_ctx *ctx) return 0; } +static int tgsi_bfi(struct r600_shader_ctx *ctx) +{ + struct tgsi_full_instruction *inst = &ctx->parse.FullToken.FullInstruction; + struct r600_bytecode_alu alu; + int i, r, t1, t2; + + unsigned write_mask = inst->Dst[0].Register.WriteMask; + int last_inst = tgsi_last_instruction(write_mask); + + t1 = ctx->temp_reg; + + for (i = 0; i < 4; i++) { + if (!(write_mask & (1<<i))) + continue; + + /* create mask tmp */ + memset(&alu, 0, sizeof(struct r600_bytecode_alu)); + alu.op = ALU_OP2_BFM_INT; + alu.dst.sel = t1; + alu.dst.chan = i; + alu.dst.write = 1; + alu.last = i == last_inst; + + r600_bytecode_src(&alu.src[0], &ctx->src[3], i); + r600_bytecode_src(&alu.src[1], &ctx->src[2], i); + + r = r600_bytecode_add_alu(ctx->bc, &alu); + if (r) + return r; + } + + t2 = r600_get_temp(ctx); + + for (i = 0; i < 4; i++) { + if (!(write_mask & (1<<i))) + continue; + + /* shift insert left */ + memset(&alu, 0, sizeof(struct r600_bytecode_alu)); + alu.op = ALU_OP2_LSHL_INT; + alu.dst.sel = t2; + alu.dst.chan = i; + alu.dst.write = 1; + alu.last = i == last_inst; + + r600_bytecode_src(&alu.src[0], &ctx->src[1], i); + r600_bytecode_src(&alu.src[1], &ctx->src[2], i); + + r = r600_bytecode_add_alu(ctx->bc, &alu); + if (r) + return r; + } + + for (i = 0; i < 4; i++) { + if (!(write_mask & (1<<i))) + continue; + + /* actual bitfield insert */ + memset(&alu, 0, sizeof(struct r600_bytecode_alu)); + alu.op = ALU_OP3_BFI_INT; + alu.is_op3 = 1; + tgsi_dst(ctx, &inst->Dst[0], i, &alu.dst); + alu.dst.chan = i; + alu.dst.write = 1; + alu.last = i == last_inst; + + alu.src[0].sel = t1; + alu.src[0].chan = i; + alu.src[1].sel = t2; + alu.src[1].chan = i; + r600_bytecode_src(&alu.src[2], &ctx->src[0], i); + + r = r600_bytecode_add_alu(ctx->bc, &alu); + if (r) + return r; + } + + return 0; +} + +static int tgsi_msb(struct r600_shader_ctx *ctx) +{ + struct tgsi_full_instruction *inst = &ctx->parse.FullToken.FullInstruction; + struct r600_bytecode_alu alu; + int i, r, t1, t2; + + unsigned write_mask = inst->Dst[0].Register.WriteMask; + int last_inst = tgsi_last_instruction(write_mask); + + assert(ctx->inst_info->op == ALU_OP1_FFBH_INT || + ctx->inst_info->op == ALU_OP1_FFBH_UINT); + + t1 = ctx->temp_reg; + + /* bit position is indexed from lsb by TGSI, and from msb by the hardware */ + for (i = 0; i < 4; i++) { + if (!(write_mask & (1<<i))) + continue; + + /* t1 = FFBH_INT / FFBH_UINT */ + memset(&alu, 0, sizeof(struct r600_bytecode_alu)); + alu.op = ctx->inst_info->op; + alu.dst.sel = t1; + alu.dst.chan = i; + alu.dst.write = 1; + alu.last = i == last_inst; + + r600_bytecode_src(&alu.src[0], &ctx->src[0], i); + + r = r600_bytecode_add_alu(ctx->bc, &alu); + if (r) + return r; + } + + t2 = r600_get_temp(ctx); + + for (i = 0; i < 4; i++) { + if (!(write_mask & (1<<i))) + continue; + + /* t2 = 31 - t1 */ + memset(&alu, 0, sizeof(struct r600_bytecode_alu)); + alu.op = ALU_OP2_SUB_INT; + alu.dst.sel = t2; + alu.dst.chan = i; + alu.dst.write = 1; + alu.last = i == last_inst; + + alu.src[0].sel = V_SQ_ALU_SRC_LITERAL; + alu.src[0].value = 31; + alu.src[1].sel = t1; + alu.src[1].chan = i; + + r = r600_bytecode_add_alu(ctx->bc, &alu); + if (r) + return r; + } + + for (i = 0; i < 4; i++) { + if (!(write_mask & (1<<i))) + continue; + + /* result = t1 >= 0 ? t2 : t1 */ + memset(&alu, 0, sizeof(struct r600_bytecode_alu)); + alu.op = ALU_OP3_CNDGE_INT; + alu.is_op3 = 1; + tgsi_dst(ctx, &inst->Dst[0], i, &alu.dst); + alu.dst.chan = i; + alu.dst.write = 1; + alu.last = i == last_inst; + + alu.src[0].sel = t1; + alu.src[0].chan = i; + alu.src[1].sel = t2; + alu.src[1].chan = i; + alu.src[2].sel = t1; + alu.src[2].chan = i; + + r = r600_bytecode_add_alu(ctx->bc, &alu); + if (r) + return r; + } + + return 0; +} + static int tgsi_helper_copy(struct r600_shader_ctx *ctx, struct tgsi_full_instruction *inst) { struct r600_bytecode_alu alu; @@ -6675,6 +6841,14 @@ static struct r600_shader_tgsi_instruction r600_shader_tgsi_instruction[] = { {TGSI_OPCODE_UMUL_HI, 0, ALU_OP2_MULHI_UINT, tgsi_op2_trans}, {TGSI_OPCODE_TG4, 0, FETCH_OP_GATHER4, tgsi_unsupported}, {TGSI_OPCODE_LODQ, 0, FETCH_OP_GET_LOD, tgsi_unsupported}, + {TGSI_OPCODE_IBFE, 1, ALU_OP3_BFE_INT, tgsi_unsupported}, + {TGSI_OPCODE_UBFE, 1, ALU_OP3_BFE_UINT, tgsi_unsupported}, + {TGSI_OPCODE_BFI, 0, ALU_OP0_NOP, tgsi_unsupported}, + {TGSI_OPCODE_BREV, 0, ALU_OP1_BFREV_INT, tgsi_unsupported}, + {TGSI_OPCODE_POPC, 0, ALU_OP1_BCNT_INT, tgsi_unsupported}, + {TGSI_OPCODE_LSB, 0, ALU_OP1_FFBL_INT, tgsi_unsupported}, + {TGSI_OPCODE_IMSB, 0, ALU_OP1_FFBH_INT, tgsi_unsupported}, + {TGSI_OPCODE_UMSB, 0, ALU_OP1_FFBH_UINT, tgsi_unsupported}, {TGSI_OPCODE_LAST, 0, ALU_OP0_NOP, tgsi_unsupported}, }; @@ -6870,6 +7044,14 @@ static struct r600_shader_tgsi_instruction eg_shader_tgsi_instruction[] = { {TGSI_OPCODE_UMUL_HI, 0, ALU_OP2_MULHI_UINT, tgsi_op2_trans}, {TGSI_OPCODE_TG4, 0, FETCH_OP_GATHER4, tgsi_tex}, {TGSI_OPCODE_LODQ, 0, FETCH_OP_GET_LOD, tgsi_tex}, + {TGSI_OPCODE_IBFE, 1, ALU_OP3_BFE_INT, tgsi_op3}, + {TGSI_OPCODE_UBFE, 1, ALU_OP3_BFE_UINT, tgsi_op3}, + {TGSI_OPCODE_BFI, 0, ALU_OP0_NOP, tgsi_bfi}, + {TGSI_OPCODE_BREV, 0, ALU_OP1_BFREV_INT, tgsi_op2}, + {TGSI_OPCODE_POPC, 0, ALU_OP1_BCNT_INT, tgsi_op2}, + {TGSI_OPCODE_LSB, 0, ALU_OP1_FFBL_INT, tgsi_op2}, + {TGSI_OPCODE_IMSB, 0, ALU_OP1_FFBH_INT, tgsi_msb}, + {TGSI_OPCODE_UMSB, 0, ALU_OP1_FFBH_UINT, tgsi_msb}, {TGSI_OPCODE_LAST, 0, ALU_OP0_NOP, tgsi_unsupported}, }; @@ -7066,5 +7248,13 @@ static struct r600_shader_tgsi_instruction cm_shader_tgsi_instruction[] = { {TGSI_OPCODE_UMUL_HI, 0, ALU_OP2_MULHI_UINT, cayman_mul_int_instr}, {TGSI_OPCODE_TG4, 0, FETCH_OP_GATHER4, tgsi_tex}, {TGSI_OPCODE_LODQ, 0, FETCH_OP_GET_LOD, tgsi_tex}, + {TGSI_OPCODE_IBFE, 1, ALU_OP3_BFE_INT, tgsi_op3}, + {TGSI_OPCODE_UBFE, 1, ALU_OP3_BFE_UINT, tgsi_op3}, + {TGSI_OPCODE_BFI, 0, ALU_OP0_NOP, tgsi_bfi}, + {TGSI_OPCODE_BREV, 0, ALU_OP1_BFREV_INT, tgsi_op2}, + {TGSI_OPCODE_POPC, 0, ALU_OP1_BCNT_INT, tgsi_op2}, + {TGSI_OPCODE_LSB, 0, ALU_OP1_FFBL_INT, tgsi_op2}, + {TGSI_OPCODE_IMSB, 0, ALU_OP1_FFBH_INT, tgsi_msb}, + {TGSI_OPCODE_UMSB, 0, ALU_OP1_FFBH_UINT, tgsi_msb}, {TGSI_OPCODE_LAST, 0, ALU_OP0_NOP, tgsi_unsupported}, }; |