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src/cpu/sparc/vm/stubGenerator_sparc.cpp

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*** 4784,4793 **** --- 4784,4917 ---- __ delayed()->stf(FloatRegisterImpl::D, F14, state, 0x38); return start; } + /* Single and multi-block ghash operations */ + address generate_ghash_processBlocks() { + __ align(CodeEntryAlignment); + Label L_ghash_loop, L_aligned, L_main; + StubCodeMark mark(this, "StubRoutines", "ghash_processBlocks"); + address start = __ pc(); + + Register state = I0; + Register subkeyH = I1; + Register data = I2; + Register len = I3; + + __ save_frame(0); + + __ ldx(state, 0, O0); + __ ldx(state, 8, O1); + + // Loop label for multiblock operations + __ BIND(L_ghash_loop); + + // Check if 'data' is unaligned + __ andcc(data, 7, G1); + __ br(Assembler::zero, false, Assembler::pt, L_aligned); + __ delayed()->nop(); + + Register left_shift = L1; + Register right_shift = L2; + Register data_ptr = L3; + + // Get left and right shift values in bits + __ sll(G1, LogBitsPerByte, left_shift); + __ mov(64, right_shift); + __ sub(right_shift, left_shift, right_shift); + + // Align to read 'data' + __ sub(data, G1, data_ptr); + + // Load first 8 bytes of 'data' + __ ldx(data_ptr, 0, O4); + __ sllx(O4, left_shift, O4); + __ ldx(data_ptr, 8, O5); + __ srlx(O5, right_shift, G4); + __ bset(G4, O4); + + // Load second 8 bytes of 'data' + __ sllx(O5, left_shift, O5); + __ ldx(data_ptr, 16, G4); + __ srlx(G4, right_shift, G4); + __ ba(L_main); + __ delayed()->bset(G4, O5); + + // If 'data' is aligned, load normally + __ BIND(L_aligned); + __ ldx(data, 0, O4); + __ ldx(data, 8, O5); + + __ BIND(L_main); + __ ldx(subkeyH, 0, O2); + __ ldx(subkeyH, 8, O3); + + __ xor3(O0, O4, O0); + __ xor3(O1, O5, O1); + + __ xmulxhi(O0, O3, G3); + __ xmulx(O0, O2, O5); + __ xmulxhi(O1, O2, G4); + __ xmulxhi(O1, O3, G5); + __ xmulx(O0, O3, G1); + __ xmulx(O1, O3, G2); + __ xmulx(O1, O2, O3); + __ xmulxhi(O0, O2, O4); + + __ mov(0xE1, O0); + __ sllx(O0, 56, O0); + + __ xor3(O5, G3, O5); + __ xor3(O5, G4, O5); + __ xor3(G5, G1, G1); + __ xor3(G1, O3, G1); + __ srlx(G2, 63, O1); + __ srlx(G1, 63, G3); + __ sllx(G2, 63, O3); + __ sllx(G2, 58, O2); + __ xor3(O3, O2, O2); + + __ sllx(G1, 1, G1); + __ or3(G1, O1, G1); + + __ xor3(G1, O2, G1); + + __ sllx(G2, 1, G2); + + __ xmulxhi(G1, O0, O1); + __ xmulx(G1, O0, O2); + __ xmulxhi(G2, O0, O3); + __ xmulx(G2, O0, G1); + + __ xor3(O4, O1, O4); + __ xor3(O5, O2, O5); + __ xor3(O5, O3, O5); + + __ sllx(O4, 1, O2); + __ srlx(O5, 63, O3); + + __ or3(O2, O3, O0); + + __ sllx(O5, 1, O1); + __ srlx(G1, 63, O2); + __ or3(O1, O2, O1); + __ xor3(O1, G3, O1); + + __ deccc(len); + __ br(Assembler::notZero, true, Assembler::pt, L_ghash_loop); + __ delayed()->add(data, 16, data); + + __ stx(O0, I0, 0); + __ stx(O1, I0, 8); + + __ ret(); + __ delayed()->restore(); + + return start; + } + void generate_initial() { // Generates all stubs and initializes the entry points //------------------------------------------------------------------------------------------------------------------------ // entry points that exist in all platforms
*** 4857,4866 **** --- 4981,4994 ---- StubRoutines::_aescrypt_encryptBlock = generate_aescrypt_encryptBlock(); StubRoutines::_aescrypt_decryptBlock = generate_aescrypt_decryptBlock(); StubRoutines::_cipherBlockChaining_encryptAESCrypt = generate_cipherBlockChaining_encryptAESCrypt(); StubRoutines::_cipherBlockChaining_decryptAESCrypt = generate_cipherBlockChaining_decryptAESCrypt_Parallel(); } + // generate GHASH intrinsics code + if (UseGHASHIntrinsics) { + StubRoutines::_ghash_processBlocks = generate_ghash_processBlocks(); + } // generate SHA1/SHA256/SHA512 intrinsics code if (UseSHA1Intrinsics) { StubRoutines::_sha1_implCompress = generate_sha1_implCompress(false, "sha1_implCompress"); StubRoutines::_sha1_implCompressMB = generate_sha1_implCompress(true, "sha1_implCompressMB");
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