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[51.195.37.164]) by smtp.gmail.com with ESMTPSA id f27sm8126432pfq.78.2021.09.17.23.28.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Sep 2021 23:28:51 -0700 (PDT) From: Eric Tang To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC 02/10] target/riscv: rvb: add carry-less multiply instructions Date: Sat, 18 Sep 2021 14:28:08 +0800 Message-Id: <20210918062816.7546-3-tangxingxin1008@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210918062816.7546-1-tangxingxin1008@gmail.com> References: <20210918062816.7546-1-tangxingxin1008@gmail.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::431; envelope-from=tangxingxin1008@gmail.com; helo=mail-pf1-x431.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Sat, 18 Sep 2021 04:20:50 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alistair.francis@wdc.com, bin.meng@windriver.com, palmer@dabbelt.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Eric Tang diff --git a/target/riscv/bitmanip_helper.c b/target/riscv/bitmanip_helper.c index 5b2f795d03..e31cf582ca 100644 --- a/target/riscv/bitmanip_helper.c +++ b/target/riscv/bitmanip_helper.c @@ -88,3 +88,38 @@ target_ulong HELPER(gorcw)(target_ulong rs1, target_ulong rs2) { return do_gorc(rs1, rs2, 32); } + +#define DO_CLMULA(NAME, NUM, BODY) \ +static target_ulong do_##NAME(target_ulong rs1, \ + target_ulong rs2, \ + int bits) \ +{ \ + target_ulong x = 0; \ + int i; \ + \ + for (i = NUM; i < bits; i++) { \ + if ((rs2 >> i) & 1) { \ + x ^= BODY; \ + } \ + } \ + return x; \ +} + +DO_CLMULA(clmul, 0, (rs1 << i)) +DO_CLMULA(clmulh, 1, (rs1 >> (bits - i))) +DO_CLMULA(clmulr, 0, (rs1 >> (bits - i - 1))) + +target_ulong HELPER(clmul)(target_ulong rs1, target_ulong rs2) +{ + return do_clmul(rs1, rs2, TARGET_LONG_BITS); +} + +target_ulong HELPER(clmulh)(target_ulong rs1, target_ulong rs2) +{ + return do_clmulh(rs1, rs2, TARGET_LONG_BITS); +} + +target_ulong HELPER(clmulr)(target_ulong rs1, target_ulong rs2) +{ + return do_clmulr(rs1, rs2, TARGET_LONG_BITS); +} diff --git a/target/riscv/helper.h b/target/riscv/helper.h index 460eee9988..7cbcee48e6 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -63,6 +63,9 @@ DEF_HELPER_FLAGS_2(grev, TCG_CALL_NO_RWG_SE, tl, tl, tl) DEF_HELPER_FLAGS_2(grevw, TCG_CALL_NO_RWG_SE, tl, tl, tl) DEF_HELPER_FLAGS_2(gorc, TCG_CALL_NO_RWG_SE, tl, tl, tl) DEF_HELPER_FLAGS_2(gorcw, TCG_CALL_NO_RWG_SE, tl, tl, tl) +DEF_HELPER_FLAGS_2(clmul, TCG_CALL_NO_RWG_SE, tl, tl, tl) +DEF_HELPER_FLAGS_2(clmulh, TCG_CALL_NO_RWG_SE, tl, tl, tl) +DEF_HELPER_FLAGS_2(clmulr, TCG_CALL_NO_RWG_SE, tl, tl, tl) /* Special functions */ DEF_HELPER_2(csrr, tl, env, int) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 2cd921d51c..9eff9d5f5c 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -690,6 +690,9 @@ gorc 0010100 .......... 101 ..... 0110011 @r sh1add 0010000 .......... 010 ..... 0110011 @r sh2add 0010000 .......... 100 ..... 0110011 @r sh3add 0010000 .......... 110 ..... 0110011 @r +clmul 0000101 .......... 001 ..... 0110011 @r +clmulh 0000101 .......... 011 ..... 0110011 @r +clmulr 0000101 .......... 010 ..... 0110011 @r bseti 00101. ........... 001 ..... 0010011 @sh bclri 01001. ........... 001 ..... 0010011 @sh diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_trans/trans_rvb.c.inc index 96b6fcb41d..1d999929de 100644 --- a/target/riscv/insn_trans/trans_rvb.c.inc +++ b/target/riscv/insn_trans/trans_rvb.c.inc @@ -321,6 +321,17 @@ static bool trans_gorci(DisasContext *ctx, arg_gorci *a) return gen_shift_imm_tl(ctx, a, EXT_ZERO, gen_helper_gorc); } +#define GEN_TRANS_CLMUL(NAME) \ +static bool trans_##NAME(DisasContext *ctx, arg_##NAME * a) \ +{ \ + REQUIRE_EXT(ctx, RVB); \ + return gen_arith(ctx, a, EXT_NONE, gen_helper_##NAME); \ +} + +GEN_TRANS_CLMUL(clmul) +GEN_TRANS_CLMUL(clmulh) +GEN_TRANS_CLMUL(clmulr) + #define GEN_SHADD(SHAMT) \ static void gen_sh##SHAMT##add(TCGv ret, TCGv arg1, TCGv arg2) \ { \ -- 2.17.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.90_1) id 1mRVbW-0002ee-HD for mharc-qemu-riscv@gnu.org; Sat, 18 Sep 2021 04:21:47 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48788) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mRTqJ-0002i6-4e; Sat, 18 Sep 2021 02:28:55 -0400 Received: from mail-pf1-x431.google.com ([2607:f8b0:4864:20::431]:40826) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mRTqH-0003Es-JQ; Sat, 18 Sep 2021 02:28:54 -0400 Received: by mail-pf1-x431.google.com with SMTP id y8so11205569pfa.7; 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[51.195.37.164]) by smtp.gmail.com with ESMTPSA id f27sm8126432pfq.78.2021.09.17.23.28.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Sep 2021 23:28:51 -0700 (PDT) From: Eric Tang To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Cc: palmer@dabbelt.com, alistair.francis@wdc.com, bin.meng@windriver.com Subject: [RFC 02/10] target/riscv: rvb: add carry-less multiply instructions Date: Sat, 18 Sep 2021 14:28:08 +0800 Message-Id: <20210918062816.7546-3-tangxingxin1008@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210918062816.7546-1-tangxingxin1008@gmail.com> References: <20210918062816.7546-1-tangxingxin1008@gmail.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::431; envelope-from=tangxingxin1008@gmail.com; helo=mail-pf1-x431.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Sat, 18 Sep 2021 04:21:44 -0400 X-BeenThere: qemu-riscv@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Sep 2021 06:28:55 -0000 Signed-off-by: Eric Tang diff --git a/target/riscv/bitmanip_helper.c b/target/riscv/bitmanip_helper.c index 5b2f795d03..e31cf582ca 100644 --- a/target/riscv/bitmanip_helper.c +++ b/target/riscv/bitmanip_helper.c @@ -88,3 +88,38 @@ target_ulong HELPER(gorcw)(target_ulong rs1, target_ulong rs2) { return do_gorc(rs1, rs2, 32); } + +#define DO_CLMULA(NAME, NUM, BODY) \ +static target_ulong do_##NAME(target_ulong rs1, \ + target_ulong rs2, \ + int bits) \ +{ \ + target_ulong x = 0; \ + int i; \ + \ + for (i = NUM; i < bits; i++) { \ + if ((rs2 >> i) & 1) { \ + x ^= BODY; \ + } \ + } \ + return x; \ +} + +DO_CLMULA(clmul, 0, (rs1 << i)) +DO_CLMULA(clmulh, 1, (rs1 >> (bits - i))) +DO_CLMULA(clmulr, 0, (rs1 >> (bits - i - 1))) + +target_ulong HELPER(clmul)(target_ulong rs1, target_ulong rs2) +{ + return do_clmul(rs1, rs2, TARGET_LONG_BITS); +} + +target_ulong HELPER(clmulh)(target_ulong rs1, target_ulong rs2) +{ + return do_clmulh(rs1, rs2, TARGET_LONG_BITS); +} + +target_ulong HELPER(clmulr)(target_ulong rs1, target_ulong rs2) +{ + return do_clmulr(rs1, rs2, TARGET_LONG_BITS); +} diff --git a/target/riscv/helper.h b/target/riscv/helper.h index 460eee9988..7cbcee48e6 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -63,6 +63,9 @@ DEF_HELPER_FLAGS_2(grev, TCG_CALL_NO_RWG_SE, tl, tl, tl) DEF_HELPER_FLAGS_2(grevw, TCG_CALL_NO_RWG_SE, tl, tl, tl) DEF_HELPER_FLAGS_2(gorc, TCG_CALL_NO_RWG_SE, tl, tl, tl) DEF_HELPER_FLAGS_2(gorcw, TCG_CALL_NO_RWG_SE, tl, tl, tl) +DEF_HELPER_FLAGS_2(clmul, TCG_CALL_NO_RWG_SE, tl, tl, tl) +DEF_HELPER_FLAGS_2(clmulh, TCG_CALL_NO_RWG_SE, tl, tl, tl) +DEF_HELPER_FLAGS_2(clmulr, TCG_CALL_NO_RWG_SE, tl, tl, tl) /* Special functions */ DEF_HELPER_2(csrr, tl, env, int) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 2cd921d51c..9eff9d5f5c 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -690,6 +690,9 @@ gorc 0010100 .......... 101 ..... 0110011 @r sh1add 0010000 .......... 010 ..... 0110011 @r sh2add 0010000 .......... 100 ..... 0110011 @r sh3add 0010000 .......... 110 ..... 0110011 @r +clmul 0000101 .......... 001 ..... 0110011 @r +clmulh 0000101 .......... 011 ..... 0110011 @r +clmulr 0000101 .......... 010 ..... 0110011 @r bseti 00101. ........... 001 ..... 0010011 @sh bclri 01001. ........... 001 ..... 0010011 @sh diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_trans/trans_rvb.c.inc index 96b6fcb41d..1d999929de 100644 --- a/target/riscv/insn_trans/trans_rvb.c.inc +++ b/target/riscv/insn_trans/trans_rvb.c.inc @@ -321,6 +321,17 @@ static bool trans_gorci(DisasContext *ctx, arg_gorci *a) return gen_shift_imm_tl(ctx, a, EXT_ZERO, gen_helper_gorc); } +#define GEN_TRANS_CLMUL(NAME) \ +static bool trans_##NAME(DisasContext *ctx, arg_##NAME * a) \ +{ \ + REQUIRE_EXT(ctx, RVB); \ + return gen_arith(ctx, a, EXT_NONE, gen_helper_##NAME); \ +} + +GEN_TRANS_CLMUL(clmul) +GEN_TRANS_CLMUL(clmulh) +GEN_TRANS_CLMUL(clmulr) + #define GEN_SHADD(SHAMT) \ static void gen_sh##SHAMT##add(TCGv ret, TCGv arg1, TCGv arg2) \ { \ -- 2.17.1