1 //===-- R600InstrFormats.td - R600 Instruction Encodings ------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // R600 Instruction format definitions.
12 //===----------------------------------------------------------------------===//
14 class InstR600 <dag outs, dag ins, string asm, list<dag> pattern,
16 : AMDGPUInst <outs, ins, asm, pattern> {
23 bits<2> FlagOperandIdx = 0;
26 bit HasNativeOperands = 0;
30 let Namespace = "AMDGPU";
31 let OutOperandList = outs;
32 let InOperandList = ins;
34 let Pattern = pattern;
37 let TSFlags{0} = TransOnly;
38 let TSFlags{4} = Trig;
41 // Vector instructions are instructions that must fill all slots in an
43 let TSFlags{6} = isVector;
44 let TSFlags{8-7} = FlagOperandIdx;
45 let TSFlags{9} = HasNativeOperands;
46 let TSFlags{10} = Op1;
47 let TSFlags{11} = Op2;
48 let TSFlags{12} = VTXInst;
49 let TSFlags{13} = TEXInst;
52 //===----------------------------------------------------------------------===//
54 //===----------------------------------------------------------------------===//
65 bits<3> index_mode = 0;
69 bits<9> src0_sel = src0{8-0};
70 bits<2> src0_chan = src0{10-9};
71 bits<9> src1_sel = src1{8-0};
72 bits<2> src1_chan = src1{10-9};
74 let Word0{8-0} = src0_sel;
75 let Word0{9} = src0_rel;
76 let Word0{11-10} = src0_chan;
77 let Word0{12} = src0_neg;
78 let Word0{21-13} = src1_sel;
79 let Word0{22} = src1_rel;
80 let Word0{24-23} = src1_chan;
81 let Word0{25} = src1_neg;
82 let Word0{28-26} = index_mode;
83 let Word0{30-29} = pred_sel;
95 bits<7> dst_sel = dst{6-0};
96 bits<2> dst_chan = dst{10-9};
98 let Word1{20-18} = bank_swizzle;
99 let Word1{27-21} = dst_sel;
100 let Word1{28} = dst_rel;
101 let Word1{30-29} = dst_chan;
102 let Word1{31} = clamp;
105 class R600ALU_Word1_OP2 <bits<11> alu_inst> : R600ALU_Word1{
109 bits<1> update_exec_mask;
114 let Word1{0} = src0_abs;
115 let Word1{1} = src1_abs;
116 let Word1{2} = update_exec_mask;
117 let Word1{3} = update_pred;
118 let Word1{4} = write;
119 let Word1{6-5} = omod;
120 let Word1{17-7} = alu_inst;
123 class R600ALU_Word1_OP3 <bits<5> alu_inst> : R600ALU_Word1{
129 bits<9> src2_sel = src2{8-0};
130 bits<2> src2_chan = src2{10-9};
132 let Word1{8-0} = src2_sel;
133 let Word1{9} = src2_rel;
134 let Word1{11-10} = src2_chan;
135 let Word1{12} = src2_neg;
136 let Word1{17-13} = alu_inst;
140 XXX: R600 subtarget uses a slightly different encoding than the other
141 subtargets. We currently handle this in R600MCCodeEmitter, but we may
142 want to use these instruction classes in the future.
144 class R600ALU_Word1_OP2_r600 : R600ALU_Word1_OP2 {
149 let Inst{37} = fog_merge;
150 let Inst{39-38} = omod;
151 let Inst{49-40} = alu_inst;
154 class R600ALU_Word1_OP2_r700 : R600ALU_Word1_OP2 {
158 let Inst{38-37} = omod;
159 let Inst{49-39} = alu_inst;
163 //===----------------------------------------------------------------------===//
164 // Vertex Fetch instructions
165 //===----------------------------------------------------------------------===//
168 field bits<32> Word0;
172 bits<1> FETCH_WHOLE_QUAD;
177 let Word0{4-0} = VC_INST;
178 let Word0{6-5} = FETCH_TYPE;
179 let Word0{7} = FETCH_WHOLE_QUAD;
180 let Word0{15-8} = BUFFER_ID;
181 let Word0{22-16} = src_gpr;
182 let Word0{23} = SRC_REL;
183 let Word0{25-24} = SRC_SEL_X;
186 class VTX_WORD0_eg : VTX_WORD0 {
188 bits<6> MEGA_FETCH_COUNT;
190 let Word0{31-26} = MEGA_FETCH_COUNT;
193 class VTX_WORD0_cm : VTX_WORD0 {
196 bits<2> STRUCTURED_READ;
198 bits<1> COALESCED_READ;
200 let Word0{27-26} = SRC_SEL_Y;
201 let Word0{29-28} = STRUCTURED_READ;
202 let Word0{30} = LDS_REQ;
203 let Word0{31} = COALESCED_READ;
206 class VTX_WORD1_GPR {
207 field bits<32> Word1;
214 bits<1> USE_CONST_FIELDS;
216 bits<2> NUM_FORMAT_ALL;
217 bits<1> FORMAT_COMP_ALL;
218 bits<1> SRF_MODE_ALL;
220 let Word1{6-0} = dst_gpr;
221 let Word1{7} = DST_REL;
222 let Word1{8} = 0; // Reserved
223 let Word1{11-9} = DST_SEL_X;
224 let Word1{14-12} = DST_SEL_Y;
225 let Word1{17-15} = DST_SEL_Z;
226 let Word1{20-18} = DST_SEL_W;
227 let Word1{21} = USE_CONST_FIELDS;
228 let Word1{27-22} = DATA_FORMAT;
229 let Word1{29-28} = NUM_FORMAT_ALL;
230 let Word1{30} = FORMAT_COMP_ALL;
231 let Word1{31} = SRF_MODE_ALL;
234 //===----------------------------------------------------------------------===//
235 // Texture fetch instructions
236 //===----------------------------------------------------------------------===//
239 field bits<32> Word0;
243 bits<1> FETCH_WHOLE_QUAD;
248 bits<2> RESOURCE_INDEX_MODE;
249 bits<2> SAMPLER_INDEX_MODE;
251 let Word0{4-0} = TEX_INST;
252 let Word0{6-5} = INST_MOD;
253 let Word0{7} = FETCH_WHOLE_QUAD;
254 let Word0{15-8} = RESOURCE_ID;
255 let Word0{22-16} = SRC_GPR;
256 let Word0{23} = SRC_REL;
257 let Word0{24} = ALT_CONST;
258 let Word0{26-25} = RESOURCE_INDEX_MODE;
259 let Word0{28-27} = SAMPLER_INDEX_MODE;
263 field bits<32> Word1;
272 bits<1> COORD_TYPE_X;
273 bits<1> COORD_TYPE_Y;
274 bits<1> COORD_TYPE_Z;
275 bits<1> COORD_TYPE_W;
277 let Word1{6-0} = DST_GPR;
278 let Word1{7} = DST_REL;
279 let Word1{11-9} = DST_SEL_X;
280 let Word1{14-12} = DST_SEL_Y;
281 let Word1{17-15} = DST_SEL_Z;
282 let Word1{20-18} = DST_SEL_W;
283 let Word1{27-21} = LOD_BIAS;
284 let Word1{28} = COORD_TYPE_X;
285 let Word1{29} = COORD_TYPE_Y;
286 let Word1{30} = COORD_TYPE_Z;
287 let Word1{31} = COORD_TYPE_W;
291 field bits<32> Word2;
302 let Word2{4-0} = OFFSET_X;
303 let Word2{9-5} = OFFSET_Y;
304 let Word2{14-10} = OFFSET_Z;
305 let Word2{19-15} = SAMPLER_ID;
306 let Word2{22-20} = SRC_SEL_X;
307 let Word2{25-23} = SRC_SEL_Y;
308 let Word2{28-26} = SRC_SEL_Z;
309 let Word2{31-29} = SRC_SEL_W;
312 //===----------------------------------------------------------------------===//
313 // Control Flow Instructions
314 //===----------------------------------------------------------------------===//
316 class CF_WORD1_R600 {
317 field bits<32> Word1;
325 bits<1> END_OF_PROGRAM;
326 bits<1> VALID_PIXEL_MODE;
328 bits<1> WHOLE_QUAD_MODE;
331 let Word1{2-0} = POP_COUNT;
332 let Word1{7-3} = CF_CONST;
333 let Word1{9-8} = COND;
334 let Word1{12-10} = COUNT;
335 let Word1{18-13} = CALL_COUNT;
336 let Word1{19} = COUNT_3;
337 let Word1{21} = END_OF_PROGRAM;
338 let Word1{22} = VALID_PIXEL_MODE;
339 let Word1{29-23} = CF_INST;
340 let Word1{30} = WHOLE_QUAD_MODE;
341 let Word1{31} = BARRIER;
345 field bits<32> Word0;
348 bits<3> JUMPTABLE_SEL;
350 let Word0{23-0} = ADDR;
351 let Word0{26-24} = JUMPTABLE_SEL;
355 field bits<32> Word1;
361 bits<1> VALID_PIXEL_MODE;
362 bits<1> END_OF_PROGRAM;
366 let Word1{2-0} = POP_COUNT;
367 let Word1{7-3} = CF_CONST;
368 let Word1{9-8} = COND;
369 let Word1{15-10} = COUNT;
370 let Word1{20} = VALID_PIXEL_MODE;
371 let Word1{21} = END_OF_PROGRAM;
372 let Word1{29-22} = CF_INST;
373 let Word1{31} = BARRIER;
377 field bits<32> Word0;
380 bits<4> KCACHE_BANK0;
381 bits<4> KCACHE_BANK1;
382 bits<2> KCACHE_MODE0;
384 let Word0{21-0} = ADDR;
385 let Word0{25-22} = KCACHE_BANK0;
386 let Word0{29-26} = KCACHE_BANK1;
387 let Word0{31-30} = KCACHE_MODE0;
391 field bits<32> Word1;
393 bits<2> KCACHE_MODE1;
394 bits<8> KCACHE_ADDR0;
395 bits<8> KCACHE_ADDR1;
399 bits<1> WHOLE_QUAD_MODE;
402 let Word1{1-0} = KCACHE_MODE1;
403 let Word1{9-2} = KCACHE_ADDR0;
404 let Word1{17-10} = KCACHE_ADDR1;
405 let Word1{24-18} = COUNT;
406 let Word1{25} = ALT_CONST;
407 let Word1{29-26} = CF_INST;
408 let Word1{30} = WHOLE_QUAD_MODE;
409 let Word1{31} = BARRIER;
412 class CF_ALLOC_EXPORT_WORD0_RAT {
413 field bits<32> Word0;
424 let Word0{3-0} = rat_id;
425 let Word0{9-4} = rat_inst;
426 let Word0{10} = 0; // Reserved
427 let Word0{12-11} = rim;
428 let Word0{14-13} = type;
429 let Word0{21-15} = rw_gpr;
430 let Word0{22} = rw_rel;
431 let Word0{29-23} = index_gpr;
432 let Word0{31-30} = elem_size;
435 class CF_ALLOC_EXPORT_WORD1_BUF {
436 field bits<32> Word1;
447 let Word1{11-0} = array_size;
448 let Word1{15-12} = comp_mask;
449 let Word1{19-16} = burst_count;
452 let Word1{29-22} = cf_inst;
453 let Word1{30} = mark;
454 let Word1{31} = barrier;