diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp index 1bd01a9a32f..92cc13d6118 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp @@ -978,6 +978,10 @@ static nv50_ir::operation translateOpcode(uint opcode) NV50_IR_OPCODE_CASE(VOTE_ANY, VOTE); NV50_IR_OPCODE_CASE(VOTE_EQ, VOTE); + NV50_IR_OPCODE_CASE(BALLOT, VOTE); + NV50_IR_OPCODE_CASE(READ_INVOC, SHFL); + NV50_IR_OPCODE_CASE(READ_FIRST, SHFL); + NV50_IR_OPCODE_CASE(END, EXIT); default: @@ -3431,6 +3435,33 @@ Converter::handleInstruction(const struct tgsi_full_instruction *insn) mkCvt(OP_CVT, TYPE_U32, dst0[c], TYPE_U8, val0); } break; + case TGSI_OPCODE_BALLOT: + if (!tgsi.getDst(0).isMasked(0)) { + val0 = new_LValue(func, FILE_PREDICATE); + mkCmp(OP_SET, CC_NE, TYPE_U32, val0, TYPE_U32, fetchSrc(0, 0), zero); + mkOp1(op, TYPE_U32, dst0[0], val0)->subOp = NV50_IR_SUBOP_VOTE_ANY; + } + if (!tgsi.getDst(0).isMasked(1)) + mkMov(dst0[1], zero, TYPE_U32); + break; + case TGSI_OPCODE_READ_FIRST: + // ReadFirstInvocationARB(src) is implemented as + // ReadInvocationARB(src, findLSB(ballot(true))) + val0 = getScratch(); + mkOp1(OP_VOTE, TYPE_U32, val0, mkImm(1))->subOp = NV50_IR_SUBOP_VOTE_ANY; + mkOp2(OP_EXTBF, TYPE_U32, val0, val0, mkImm(0x2000)) + ->subOp = NV50_IR_SUBOP_EXTBF_REV; + mkOp1(OP_BFIND, TYPE_U32, val0, val0)->subOp = NV50_IR_SUBOP_BFIND_SAMT; + src1 = val0; + /* fallthrough */ + case TGSI_OPCODE_READ_INVOC: + if (tgsi.getOpcode() == TGSI_OPCODE_READ_INVOC) + src1 = fetchSrc(1, 0); + FOR_EACH_DST_ENABLED_CHANNEL(0, c, tgsi) { + geni = mkOp3(op, dstTy, dst0[c], fetchSrc(0, c), src1, mkImm(0x1f)); + geni->subOp = NV50_IR_SUBOP_SHFL_IDX; + } + break; case TGSI_OPCODE_CLOCK: // Stick the 32-bit clock into the high dword of the logical result. if (!tgsi.getDst(0).isMasked(0)) |