/* * Copyright © 2011 Intel Corporation * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. */ #include "brw_vec4.h" extern "C" { #include "brw_eu.h" #include "main/macros.h" #include "program/prog_print.h" #include "program/prog_parameter.h" }; namespace brw { gen8_vec4_generator::gen8_vec4_generator(struct brw_context *brw, struct gl_shader_program *shader_prog, struct gl_program *prog, struct brw_vec4_prog_data *prog_data, void *mem_ctx, bool debug_flag) : gen8_generator(brw, shader_prog, prog, mem_ctx), prog_data(prog_data), debug_flag(debug_flag) { } gen8_vec4_generator::~gen8_vec4_generator() { } void gen8_vec4_generator::mark_surface_used(unsigned surf_index) { assert(surf_index < BRW_MAX_SURFACES); prog_data->base.binding_table.size_bytes = MAX2(prog_data->base.binding_table.size_bytes, (surf_index + 1) * 4); } void gen8_vec4_generator::generate_tex(vec4_instruction *ir, struct brw_reg dst) { int msg_type = 0; switch (ir->opcode) { case SHADER_OPCODE_TEX: case SHADER_OPCODE_TXL: if (ir->shadow_compare) { msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LOD_COMPARE; } else { msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LOD; } break; case SHADER_OPCODE_TXD: if (ir->shadow_compare) { msg_type = HSW_SAMPLER_MESSAGE_SAMPLE_DERIV_COMPARE; } else { msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_DERIVS; } break; case SHADER_OPCODE_TXF: msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_LD; break; case SHADER_OPCODE_TXF_CMS: msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_LD2DMS; break; case SHADER_OPCODE_TXF_MCS: msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_LD_MCS; break; case SHADER_OPCODE_TXS: msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_RESINFO; break; case SHADER_OPCODE_TG4: if (ir->shadow_compare) { msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4_C; } else { msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4; } break; case SHADER_OPCODE_TG4_OFFSET: if (ir->shadow_compare) { msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4_PO_C; } else { msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4_PO; } break; default: assert(!"should not get here: invalid VS texture opcode"); break; } if (ir->header_present) { MOV_RAW(retype(brw_message_reg(ir->base_mrf), BRW_REGISTER_TYPE_UD), retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UD)); default_state.access_mode = BRW_ALIGN_1; if (ir->texture_offset) { /* Set the offset bits in DWord 2. */ MOV_RAW(retype(brw_vec1_reg(MRF, ir->base_mrf, 2), BRW_REGISTER_TYPE_UD), brw_imm_ud(ir->texture_offset)); } if (ir->sampler >= 16) { /* The "Sampler Index" field can only store values between 0 and 15. * However, we can add an offset to the "Sampler State Pointer" * field, effectively selecting a different set of 16 samplers. * * The "Sampler State Pointer" needs to be aligned to a 32-byte * offset, and each sampler state is only 16-bytes, so we can't * exclusively use the offset - we have to use both. */ gen8_instruction *add = ADD(get_element_ud(brw_message_reg(ir->base_mrf), 3), get_element_ud(brw_vec8_grf(0, 0), 3), brw_imm_ud(16 * (ir->sampler / 16) * sizeof(gen7_sampler_state))); gen8_set_mask_control(add, BRW_MASK_DISABLE); } default_state.access_mode = BRW_ALIGN_16; } uint32_t surf_index = prog_data->base.binding_table.texture_start + ir->sampler; gen8_instruction *inst = next_inst(BRW_OPCODE_SEND); gen8_set_dst(brw, inst, dst); gen8_set_src0(brw, inst, brw_message_reg(ir->base_mrf)); gen8_set_sampler_message(brw, inst, surf_index, ir->sampler % 16, msg_type, 1, ir->mlen, ir->header_present, BRW_SAMPLER_SIMD_MODE_SIMD4X2); mark_surface_used(surf_index); } void gen8_vec4_generator::generate_urb_write(vec4_instruction *ir, bool vs) { struct brw_reg header = brw_vec8_grf(GEN7_MRF_HACK_START + ir->base_mrf, 0); /* Copy g0. */ if (vs) MOV_RAW(header, brw_vec8_grf(0, 0)); gen8_instruction *inst; if (!(ir->urb_write_flags & BRW_URB_WRITE_USE_CHANNEL_MASKS)) { /* Enable Channel Masks in the URB_WRITE_OWORD message header */ default_state.access_mode = BRW_ALIGN_1; MOV_RAW(brw_vec1_grf(GEN7_MRF_HACK_START + ir->base_mrf, 5), brw_imm_ud(0xff00)); default_state.access_mode = BRW_ALIGN_16; } inst = next_inst(BRW_OPCODE_SEND); gen8_set_urb_message(brw, inst, ir->urb_write_flags, ir->mlen, 0, ir->offset, true); gen8_set_dst(brw, inst, brw_null_reg()); gen8_set_src0(brw, inst, header); } void gen8_vec4_generator::generate_gs_set_vertex_count(struct brw_reg eot_mrf_header, struct brw_reg src) { /* Move the vertex count into the second MRF for the EOT write. */ assert(eot_mrf_header.file == BRW_MESSAGE_REGISTER_FILE); int dst_nr = GEN7_MRF_HACK_START + eot_mrf_header.nr + 1; MOV(retype(brw_vec8_grf(dst_nr, 0), BRW_REGISTER_TYPE_UD), src); } void gen8_vec4_generator::generate_gs_thread_end(vec4_instruction *ir) { struct brw_reg src = brw_vec8_grf(GEN7_MRF_HACK_START + ir->base_mrf, 0); gen8_instruction *inst; /* Enable Channel Masks in the URB_WRITE_HWORD message header */ default_state.access_mode = BRW_ALIGN_1; inst = OR(retype(brw_vec1_grf(GEN7_MRF_HACK_START + ir->base_mrf, 5), BRW_REGISTER_TYPE_UD), retype(brw_vec1_grf(0, 5), BRW_REGISTER_TYPE_UD), brw_imm_ud(0xff00)); /* could be 0x1100 but shouldn't matter */ gen8_set_mask_control(inst, BRW_MASK_DISABLE); default_state.access_mode = BRW_ALIGN_16; /* mlen = 2: g0 header + vertex count */ inst = next_inst(BRW_OPCODE_SEND); gen8_set_urb_message(brw, inst, BRW_URB_WRITE_EOT, 2, 0, 0, true); gen8_set_dst(brw, inst, brw_null_reg()); gen8_set_src0(brw, inst, src); } void gen8_vec4_generator::generate_gs_set_write_offset(struct brw_reg dst, struct brw_reg src0, struct brw_reg src1) { /* From p22 of volume 4 part 2 of the Ivy Bridge PRM (2.4.3.1 Message * Header: M0.3): * * Slot 0 Offset. This field, after adding to the Global Offset field * in the message descriptor, specifies the offset (in 256-bit units) * from the start of the URB entry, as referenced by URB Handle 0, at * which the data will be accessed. * * Similar text describes DWORD M0.4, which is slot 1 offset. * * Therefore, we want to multiply DWORDs 0 and 4 of src0 (the x components * of the register for geometry shader invocations 0 and 1) by the * immediate value in src1, and store the result in DWORDs 3 and 4 of dst. * * We can do this with the following EU instruction: * * mul(2) dst.3<1>UD src0<8;2,4>UD src1 { Align1 WE_all } */ default_state.access_mode = BRW_ALIGN_1; gen8_instruction *inst = MUL(suboffset(stride(dst, 2, 2, 1), 3), stride(src0, 8, 2, 4), src1); gen8_set_mask_control(inst, BRW_MASK_DISABLE); default_state.access_mode = BRW_ALIGN_16; } void gen8_vec4_generator::generate_gs_set_dword_2_immed(struct brw_reg dst, struct brw_reg src) { assert(src.file == BRW_IMMEDIATE_VALUE); default_state.access_mode = BRW_ALIGN_1; gen8_instruction *inst = MOV(suboffset(vec1(dst), 2), src); gen8_set_mask_control(inst, BRW_MASK_DISABLE); default_state.access_mode = BRW_ALIGN_16; } void gen8_vec4_generator::generate_gs_prepare_channel_masks(struct brw_reg dst) { /* We want to left shift just DWORD 4 (the x component belonging to the * second geometry shader invocation) by 4 bits. So generate the * instruction: * * shl(1) dst.4<1>UD dst.4<0,1,0>UD 4UD { align1 WE_all } */ dst = suboffset(vec1(dst), 4); default_state.access_mode = BRW_ALIGN_1; gen8_instruction *inst = SHL(dst, dst, brw_imm_ud(4)); gen8_set_mask_control(inst, BRW_MASK_DISABLE); default_state.access_mode = BRW_ALIGN_16; } void gen8_vec4_generator::generate_gs_set_channel_masks(struct brw_reg dst, struct brw_reg src) { /* From p21 of volume 4 part 2 of the Ivy Bridge PRM (2.4.3.1 Message * Header: M0.5): * * 15 Vertex 1 DATA [3] / Vertex 0 DATA[7] Channel Mask * * When Swizzle Control = URB_INTERLEAVED this bit controls Vertex 1 * DATA[3], when Swizzle Control = URB_NOSWIZZLE this bit controls * Vertex 0 DATA[7]. This bit is ANDed with the corresponding * channel enable to determine the final channel enable. For the * URB_READ_OWORD & URB_READ_HWORD messages, when final channel * enable is 1 it indicates that Vertex 1 DATA [3] will be included * in the writeback message. For the URB_WRITE_OWORD & * URB_WRITE_HWORD messages, when final channel enable is 1 it * indicates that Vertex 1 DATA [3] will be written to the surface. * * 0: Vertex 1 DATA [3] / Vertex 0 DATA[7] channel not included * 1: Vertex DATA [3] / Vertex 0 DATA[7] channel included * * 14 Vertex 1 DATA [2] Channel Mask * 13 Vertex 1 DATA [1] Channel Mask * 12 Vertex 1 DATA [0] Channel Mask * 11 Vertex 0 DATA [3] Channel Mask * 10 Vertex 0 DATA [2] Channel Mask * 9 Vertex 0 DATA [1] Channel Mask * 8 Vertex 0 DATA [0] Channel Mask * * (This is from a section of the PRM that is agnostic to the particular * type of shader being executed, so "Vertex 0" and "Vertex 1" refer to * geometry shader invocations 0 and 1, respectively). Since we have the * enable flags for geometry shader invocation 0 in bits 3:0 of DWORD 0, * and the enable flags for geometry shader invocation 1 in bits 7:0 of * DWORD 4, we just need to OR them together and store the result in bits * 15:8 of DWORD 5. * * It's easier to get the EU to do this if we think of the src and dst * registers as composed of 32 bytes each; then, we want to pick up the * contents of bytes 0 and 16 from src, OR them together, and store them in * byte 21. * * We can do that by the following EU instruction: * * or(1) dst.21<1>UB src<0,1,0>UB src.16<0,1,0>UB { align1 WE_all } * * Note: this relies on the source register having zeros in (a) bits 7:4 of * DWORD 0 and (b) bits 3:0 of DWORD 4. We can rely on (b) because the * source register was prepared by GS_OPCODE_PREPARE_CHANNEL_MASKS (which * shifts DWORD 4 left by 4 bits), and we can rely on (a) because prior to * the execution of GS_OPCODE_PREPARE_CHANNEL_MASKS, DWORDs 0 and 4 need to * contain valid channel mask values (which are in the range 0x0-0xf). */ dst = retype(dst, BRW_REGISTER_TYPE_UB); src = retype(src, BRW_REGISTER_TYPE_UB); default_state.access_mode = BRW_ALIGN_1; gen8_instruction *inst = OR(suboffset(vec1(dst), 21), vec1(src), suboffset(vec1(src), 16)); gen8_set_mask_control(inst, BRW_MASK_DISABLE); default_state.access_mode = BRW_ALIGN_16; } void gen8_vec4_generator::generate_oword_dual_block_offsets(struct brw_reg m1, struct brw_reg index) { int second_vertex_offset = 1; m1 = retype(m1, BRW_REGISTER_TYPE_D); /* Set up M1 (message payload). Only the block offsets in M1.0 and * M1.4 are used, and the rest are ignored. */ struct brw_reg m1_0 = suboffset(vec1(m1), 0); struct brw_reg m1_4 = suboffset(vec1(m1), 4); struct brw_reg index_0 = suboffset(vec1(index), 0); struct brw_reg index_4 = suboffset(vec1(index), 4); default_state.mask_control = BRW_MASK_DISABLE; default_state.access_mode = BRW_ALIGN_1; MOV(m1_0, index_0); if (index.file == BRW_IMMEDIATE_VALUE) { index_4.dw1.ud += second_vertex_offset; MOV(m1_4, index_4); } else { ADD(m1_4, index_4, brw_imm_d(second_vertex_offset)); } default_state.mask_control = BRW_MASK_ENABLE; default_state.access_mode = BRW_ALIGN_16; } void gen8_vec4_generator::generate_scratch_read(vec4_instruction *ir, struct brw_reg dst, struct brw_reg index) { struct brw_reg header = brw_vec8_grf(GEN7_MRF_HACK_START + ir->base_mrf, 0); MOV_RAW(header, brw_vec8_grf(0, 0)); generate_oword_dual_block_offsets(brw_message_reg(ir->base_mrf + 1), index); /* Each of the 8 channel enables is considered for whether each * dword is written. */ gen8_instruction *send = next_inst(BRW_OPCODE_SEND); gen8_set_dst(brw, send, dst); gen8_set_src0(brw, send, header); gen8_set_dp_message(brw, send, GEN7_SFID_DATAPORT_DATA_CACHE, 255, /* binding table index: stateless access */ GEN6_DATAPORT_READ_MESSAGE_OWORD_DUAL_BLOCK_READ, BRW_DATAPORT_OWORD_DUAL_BLOCK_1OWORD, 2, /* mlen */ 1, /* rlen */ true, /* header present */ false); /* EOT */ } void gen8_vec4_generator::generate_scratch_write(vec4_instruction *ir, struct brw_reg dst, struct brw_reg src, struct brw_reg index) { struct brw_reg header = brw_vec8_grf(GEN7_MRF_HACK_START + ir->base_mrf, 0); MOV_RAW(header, brw_vec8_grf(0, 0)); generate_oword_dual_block_offsets(brw_message_reg(ir->base_mrf + 1), index); MOV(retype(brw_message_reg(ir->base_mrf + 2), BRW_REGISTER_TYPE_D), retype(src, BRW_REGISTER_TYPE_D)); /* Each of the 8 channel enables is considered for whether each * dword is written. */ gen8_instruction *send = next_inst(BRW_OPCODE_SEND); gen8_set_dst(brw, send, dst); gen8_set_src0(brw, send, header); gen8_set_pred_control(send, ir->predicate); gen8_set_dp_message(brw, send, GEN7_SFID_DATAPORT_DATA_CACHE, 255, /* binding table index: stateless access */ GEN7_DATAPORT_WRITE_MESSAGE_OWORD_DUAL_BLOCK_WRITE, BRW_DATAPORT_OWORD_DUAL_BLOCK_1OWORD, 3, /* mlen */ 0, /* rlen */ true, /* header present */ false); /* EOT */ } void gen8_vec4_generator::generate_pull_constant_load(vec4_instruction *inst, struct brw_reg dst, struct brw_reg index, struct brw_reg offset) { assert(index.file == BRW_IMMEDIATE_VALUE && index.type == BRW_REGISTER_TYPE_UD); uint32_t surf_index = index.dw1.ud; assert(offset.file == BRW_GENERAL_REGISTER_FILE); /* Each of the 8 channel enables is considered for whether each * dword is written. */ gen8_instruction *send = next_inst(BRW_OPCODE_SEND); gen8_set_dst(brw, send, dst); gen8_set_src0(brw, send, offset); gen8_set_dp_message(brw, send, GEN7_SFID_DATAPORT_DATA_CACHE, surf_index, GEN6_DATAPORT_READ_MESSAGE_OWORD_DUAL_BLOCK_READ, 0, /* message control */ 1, /* mlen */ 1, /* rlen */ false, /* no header */ false); /* EOT */ mark_surface_used(surf_index); } void gen8_vec4_generator::generate_vec4_instruction(vec4_instruction *instruction, struct brw_reg dst, struct brw_reg *src) { vec4_instruction *ir = (vec4_instruction *) instruction; if (dst.width == BRW_WIDTH_4) { /* This happens in attribute fixups for "dual instanced" geometry * shaders, since they use attributes that are vec4's. Since the exec * width is only 4, it's essential that the caller set * force_writemask_all in order to make sure the instruction is executed * regardless of which channels are enabled. */ assert(ir->force_writemask_all); /* Fix up any <8;8,1> or <0;4,1> source registers to <4;4,1> to satisfy * the following register region restrictions (from Graphics BSpec: * 3D-Media-GPGPU Engine > EU Overview > Registers and Register Regions * > Register Region Restrictions) * * 1. ExecSize must be greater than or equal to Width. * * 2. If ExecSize = Width and HorzStride != 0, VertStride must be set * to Width * HorzStride." */ for (int i = 0; i < 3; i++) { if (src[i].file == BRW_GENERAL_REGISTER_FILE) src[i] = stride(src[i], 4, 4, 1); } } switch (ir->opcode) { case BRW_OPCODE_MOV: MOV(dst, src[0]); break; case BRW_OPCODE_ADD: ADD(dst, src[0], src[1]); break; case BRW_OPCODE_MUL: MUL(dst, src[0], src[1]); break; case BRW_OPCODE_MACH: MACH(dst, src[0], src[1]); break; case BRW_OPCODE_MAD: MAD(dst, src[0], src[1], src[2]); break; case BRW_OPCODE_FRC: FRC(dst, src[0]); break; case BRW_OPCODE_RNDD: RNDD(dst, src[0]); break; case BRW_OPCODE_RNDE: RNDE(dst, src[0]); break; case BRW_OPCODE_RNDZ: RNDZ(dst, src[0]); break; case BRW_OPCODE_AND: AND(dst, src[0], src[1]); break; case BRW_OPCODE_OR: OR(dst, src[0], src[1]); break; case BRW_OPCODE_XOR: XOR(dst, src[0], src[1]); break; case BRW_OPCODE_NOT: NOT(dst, src[0]); break; case BRW_OPCODE_ASR: ASR(dst, src[0], src[1]); break; case BRW_OPCODE_SHR: SHR(dst, src[0], src[1]); break; case BRW_OPCODE_SHL: SHL(dst, src[0], src[1]); break; case BRW_OPCODE_CMP: CMP(dst, ir->conditional_mod, src[0], src[1]); break; case BRW_OPCODE_SEL: SEL(dst, src[0], src[1]); break; case BRW_OPCODE_DPH: DPH(dst, src[0], src[1]); break; case BRW_OPCODE_DP4: DP4(dst, src[0], src[1]); break; case BRW_OPCODE_DP3: DP3(dst, src[0], src[1]); break; case BRW_OPCODE_DP2: DP2(dst, src[0], src[1]); break; case BRW_OPCODE_F32TO16: /* Emulate the Gen7 zeroing bug. */ MOV(retype(dst, BRW_REGISTER_TYPE_UD), brw_imm_ud(0u)); MOV(retype(dst, BRW_REGISTER_TYPE_HF), src[0]); break; case BRW_OPCODE_F16TO32: MOV(dst, retype(src[0], BRW_REGISTER_TYPE_HF)); break; case BRW_OPCODE_LRP: LRP(dst, src[0], src[1], src[2]); break; case BRW_OPCODE_BFREV: /* BFREV only supports UD type for src and dst. */ BFREV(retype(dst, BRW_REGISTER_TYPE_UD), retype(src[0], BRW_REGISTER_TYPE_UD)); break; case BRW_OPCODE_FBH: /* FBH only supports UD type for dst. */ FBH(retype(dst, BRW_REGISTER_TYPE_UD), src[0]); break; case BRW_OPCODE_FBL: /* FBL only supports UD type for dst. */ FBL(retype(dst, BRW_REGISTER_TYPE_UD), src[0]); break; case BRW_OPCODE_CBIT: /* CBIT only supports UD type for dst. */ CBIT(retype(dst, BRW_REGISTER_TYPE_UD), src[0]); break; case BRW_OPCODE_ADDC: ADDC(dst, src[0], src[1]); break; case BRW_OPCODE_SUBB: SUBB(dst, src[0], src[1]); break; case BRW_OPCODE_BFE: BFE(dst, src[0], src[1], src[2]); break; case BRW_OPCODE_BFI1: BFI1(dst, src[0], src[1]); break; case BRW_OPCODE_BFI2: BFI2(dst, src[0], src[1], src[2]); break; case BRW_OPCODE_IF: IF(ir->predicate); break; case BRW_OPCODE_ELSE: ELSE(); break; case BRW_OPCODE_ENDIF: ENDIF(); break; case BRW_OPCODE_DO: DO(); break; case BRW_OPCODE_BREAK: BREAK(); break; case BRW_OPCODE_CONTINUE: CONTINUE(); break; case BRW_OPCODE_WHILE: WHILE(); break; case SHADER_OPCODE_RCP: MATH(BRW_MATH_FUNCTION_INV, dst, src[0]); break; case SHADER_OPCODE_RSQ: MATH(BRW_MATH_FUNCTION_RSQ, dst, src[0]); break; case SHADER_OPCODE_SQRT: MATH(BRW_MATH_FUNCTION_SQRT, dst, src[0]); break; case SHADER_OPCODE_EXP2: MATH(BRW_MATH_FUNCTION_EXP, dst, src[0]); break; case SHADER_OPCODE_LOG2: MATH(BRW_MATH_FUNCTION_LOG, dst, src[0]); break; case SHADER_OPCODE_SIN: MATH(BRW_MATH_FUNCTION_SIN, dst, src[0]); break; case SHADER_OPCODE_COS: MATH(BRW_MATH_FUNCTION_COS, dst, src[0]); break; case SHADER_OPCODE_POW: MATH(BRW_MATH_FUNCTION_POW, dst, src[0], src[1]); break; case SHADER_OPCODE_INT_QUOTIENT: MATH(BRW_MATH_FUNCTION_INT_DIV_QUOTIENT, dst, src[0], src[1]); break; case SHADER_OPCODE_INT_REMAINDER: MATH(BRW_MATH_FUNCTION_INT_DIV_REMAINDER, dst, src[0], src[1]); break; case SHADER_OPCODE_TEX: case SHADER_OPCODE_TXD: case SHADER_OPCODE_TXF: case SHADER_OPCODE_TXF_CMS: case SHADER_OPCODE_TXF_MCS: case SHADER_OPCODE_TXL: case SHADER_OPCODE_TXS: case SHADER_OPCODE_TG4: case SHADER_OPCODE_TG4_OFFSET: generate_tex(ir, dst); break; case VS_OPCODE_URB_WRITE: generate_urb_write(ir, true); break; case SHADER_OPCODE_GEN4_SCRATCH_READ: generate_scratch_read(ir, dst, src[0]); break; case SHADER_OPCODE_GEN4_SCRATCH_WRITE: generate_scratch_write(ir, dst, src[0], src[1]); break; case VS_OPCODE_PULL_CONSTANT_LOAD: case VS_OPCODE_PULL_CONSTANT_LOAD_GEN7: generate_pull_constant_load(ir, dst, src[0], src[1]); break; case GS_OPCODE_URB_WRITE: generate_urb_write(ir, false); break; case GS_OPCODE_THREAD_END: generate_gs_thread_end(ir); break; case GS_OPCODE_SET_WRITE_OFFSET: generate_gs_set_write_offset(dst, src[0], src[1]); break; case GS_OPCODE_SET_VERTEX_COUNT: generate_gs_set_vertex_count(dst, src[0]); break; case GS_OPCODE_SET_DWORD_2_IMMED: generate_gs_set_dword_2_immed(dst, src[0]); break; case GS_OPCODE_PREPARE_CHANNEL_MASKS: generate_gs_prepare_channel_masks(dst); break; case GS_OPCODE_SET_CHANNEL_MASKS: generate_gs_set_channel_masks(dst, src[0]); break; case SHADER_OPCODE_SHADER_TIME_ADD: assert(!"XXX: Missing Gen8 vec4 support for INTEL_DEBUG=shader_time"); break; case SHADER_OPCODE_UNTYPED_ATOMIC: assert(!"XXX: Missing Gen8 vec4 support for UNTYPED_ATOMIC"); break; case SHADER_OPCODE_UNTYPED_SURFACE_READ: assert(!"XXX: Missing Gen8 vec4 support for UNTYPED_SURFACE_READ"); break; case VS_OPCODE_UNPACK_FLAGS_SIMD4X2: assert(!"VS_OPCODE_UNPACK_FLAGS_SIMD4X2 should not be used on Gen8+."); break; default: if (ir->opcode < (int) ARRAY_SIZE(opcode_descs)) { _mesa_problem(ctx, "Unsupported opcode in `%s' in VS\n", opcode_descs[ir->opcode].name); } else { _mesa_problem(ctx, "Unsupported opcode %d in VS", ir->opcode); } abort(); } } void gen8_vec4_generator::generate_code(exec_list *instructions) { int last_native_inst_offset = 0; const char *last_annotation_string = NULL; const void *last_annotation_ir = NULL; if (unlikely(debug_flag)) { if (shader_prog) { fprintf(stderr, "Native code for %s vertex shader %d:\n", shader_prog->Label ? shader_prog->Label : "unnamed", shader_prog->Name); } else { fprintf(stderr, "Native code for vertex program %d:\n", prog->Id); } } foreach_list(node, instructions) { vec4_instruction *ir = (vec4_instruction *) node; struct brw_reg src[3], dst; if (unlikely(debug_flag)) { if (last_annotation_ir != ir->ir) { last_annotation_ir = ir->ir; if (last_annotation_ir) { fprintf(stderr, " "); if (shader_prog) { ((ir_instruction *) last_annotation_ir)->fprint(stderr); } else { const prog_instruction *vpi; vpi = (const prog_instruction *) ir->ir; fprintf(stderr, "%d: ", (int)(vpi - prog->Instructions)); _mesa_fprint_instruction_opt(stderr, vpi, 0, PROG_PRINT_DEBUG, NULL); } fprintf(stderr, "\n"); } } if (last_annotation_string != ir->annotation) { last_annotation_string = ir->annotation; if (last_annotation_string) fprintf(stderr, " %s\n", last_annotation_string); } } for (unsigned int i = 0; i < 3; i++) { src[i] = ir->get_src(prog_data, i); } dst = ir->get_dst(); default_state.conditional_mod = ir->conditional_mod; default_state.predicate = ir->predicate; default_state.predicate_inverse = ir->predicate_inverse; default_state.saturate = ir->saturate; const unsigned pre_emit_nr_inst = nr_inst; generate_vec4_instruction(ir, dst, src); if (ir->no_dd_clear || ir->no_dd_check) { assert(nr_inst == pre_emit_nr_inst + 1 || !"no_dd_check or no_dd_clear set for IR emitting more " "than 1 instruction"); gen8_instruction *last = &store[pre_emit_nr_inst]; gen8_set_no_dd_clear(last, ir->no_dd_clear); gen8_set_no_dd_check(last, ir->no_dd_check); } if (unlikely(debug_flag)) { disassemble(stderr, last_native_inst_offset, next_inst_offset); } last_native_inst_offset = next_inst_offset; } if (unlikely(debug_flag)) { fprintf(stderr, "\n"); } patch_jump_targets(); /* OK, while the INTEL_DEBUG=vs above is very nice for debugging VS * emit issues, it doesn't get the jump distances into the output, * which is often something we want to debug. So this is here in * case you're doing that. */ if (0 && unlikely(debug_flag)) { disassemble(stderr, 0, next_inst_offset); } } const unsigned * gen8_vec4_generator::generate_assembly(exec_list *instructions, unsigned *assembly_size) { default_state.access_mode = BRW_ALIGN_16; default_state.exec_size = BRW_EXECUTE_8; generate_code(instructions); *assembly_size = next_inst_offset; return (const unsigned *) store; } } /* namespace brw */