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Wed, 25 Aug 2021 09:59:42 -0700 (PDT) Received: from localhost.localdomain ([2a01:4f9:3a:1e26::2]) by smtp.gmail.com with ESMTPSA id r2sm59619ljj.14.2021.08.25.09.59.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Aug 2021 09:59:42 -0700 (PDT) From: Philipp Tomsich To: qemu-devel@nongnu.org Subject: [PATCH v6 02/14] target/riscv: Reassign instructions to the Zba-extension Date: Wed, 25 Aug 2021 18:58:55 +0200 Message-Id: <20210825165907.34026-3-philipp.tomsich@vrull.eu> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210825165907.34026-1-philipp.tomsich@vrull.eu> References: <20210825165907.34026-1-philipp.tomsich@vrull.eu> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::12e; envelope-from=philipp.tomsich@vrull.eu; helo=mail-lf1-x12e.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, 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-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 , Kito Cheng , Richard Henderson , Philipp Tomsich Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The following instructions are part of Zba: - add.uw (RV64 only) - sh[123]add (RV32 and RV64) - sh[123]add.uw (RV64-only) - slli.uw (RV64-only) Signed-off-by: Philipp Tomsich Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis --- (no changes since v3) Changes in v3: - The changes to the Zba instructions (i.e. the REQUIRE_ZBA macro and its use for qualifying the Zba instructions) are moved into a separate commit. target/riscv/insn32.decode | 20 ++++++++++++-------- target/riscv/insn_trans/trans_rvb.c.inc | 17 ++++++++++++----- 2 files changed, 24 insertions(+), 13 deletions(-) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index f09f8d5faf..68b163b72d 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -659,6 +659,18 @@ vamomaxd_v 10100 . . ..... ..... 111 ..... 0101111 @r_wdvm vamominud_v 11000 . . ..... ..... 111 ..... 0101111 @r_wdvm vamomaxud_v 11100 . . ..... ..... 111 ..... 0101111 @r_wdvm +# *** RV32 Zba Standard Extension *** +sh1add 0010000 .......... 010 ..... 0110011 @r +sh2add 0010000 .......... 100 ..... 0110011 @r +sh3add 0010000 .......... 110 ..... 0110011 @r + +# *** RV64 Zba Standard Extension (in addition to RV32 Zba) *** +add_uw 0000100 .......... 000 ..... 0111011 @r +sh1add_uw 0010000 .......... 010 ..... 0111011 @r +sh2add_uw 0010000 .......... 100 ..... 0111011 @r +sh3add_uw 0010000 .......... 110 ..... 0111011 @r +slli_uw 00001 ............ 001 ..... 0011011 @sh + # *** RV32B Standard Extension *** clz 011000 000000 ..... 001 ..... 0010011 @r2 ctz 011000 000001 ..... 001 ..... 0010011 @r2 @@ -686,9 +698,6 @@ ror 0110000 .......... 101 ..... 0110011 @r rol 0110000 .......... 001 ..... 0110011 @r grev 0110100 .......... 101 ..... 0110011 @r gorc 0010100 .......... 101 ..... 0110011 @r -sh1add 0010000 .......... 010 ..... 0110011 @r -sh2add 0010000 .......... 100 ..... 0110011 @r -sh3add 0010000 .......... 110 ..... 0110011 @r bseti 00101. ........... 001 ..... 0010011 @sh bclri 01001. ........... 001 ..... 0010011 @sh @@ -717,10 +726,6 @@ rorw 0110000 .......... 101 ..... 0111011 @r rolw 0110000 .......... 001 ..... 0111011 @r grevw 0110100 .......... 101 ..... 0111011 @r gorcw 0010100 .......... 101 ..... 0111011 @r -sh1add_uw 0010000 .......... 010 ..... 0111011 @r -sh2add_uw 0010000 .......... 100 ..... 0111011 @r -sh3add_uw 0010000 .......... 110 ..... 0111011 @r -add_uw 0000100 .......... 000 ..... 0111011 @r bsetiw 0010100 .......... 001 ..... 0011011 @sh5 bclriw 0100100 .......... 001 ..... 0011011 @sh5 @@ -731,4 +736,3 @@ roriw 0110000 .......... 101 ..... 0011011 @sh5 greviw 0110100 .......... 101 ..... 0011011 @sh5 gorciw 0010100 .......... 101 ..... 0011011 @sh5 -slli_uw 00001. ........... 001 ..... 0011011 @sh diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_trans/trans_rvb.c.inc index 9e81f6e3de..3cdd70a2b9 100644 --- a/target/riscv/insn_trans/trans_rvb.c.inc +++ b/target/riscv/insn_trans/trans_rvb.c.inc @@ -1,8 +1,9 @@ /* - * RISC-V translation routines for the RVB Standard Extension. + * RISC-V translation routines for the RVB draft and Zba Standard Extension. * * Copyright (c) 2020 Kito Cheng, kito.cheng@sifive.com * Copyright (c) 2020 Frank Chang, frank.chang@sifive.com + * Copyright (c) 2021 Philipp Tomsich, philipp.tomsich@vrull.eu * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -17,6 +18,12 @@ * this program. If not, see . */ +#define REQUIRE_ZBA(ctx) do { \ + if (!RISCV_CPU(ctx->cs)->cfg.ext_zba) { \ + return false; \ + } \ +} while (0) + static bool trans_clz(DisasContext *ctx, arg_clz *a) { REQUIRE_EXT(ctx, RVB); @@ -229,7 +236,7 @@ static bool trans_gorci(DisasContext *ctx, arg_gorci *a) #define GEN_TRANS_SHADD(SHAMT) \ static bool trans_sh##SHAMT##add(DisasContext *ctx, arg_sh##SHAMT##add *a) \ { \ - REQUIRE_EXT(ctx, RVB); \ + REQUIRE_ZBA(ctx); \ return gen_arith(ctx, a, gen_sh##SHAMT##add); \ } @@ -403,7 +410,7 @@ static bool trans_sh##SHAMT##add_uw(DisasContext *ctx, \ arg_sh##SHAMT##add_uw *a) \ { \ REQUIRE_64BIT(ctx); \ - REQUIRE_EXT(ctx, RVB); \ + REQUIRE_ZBA(ctx); \ return gen_arith(ctx, a, gen_sh##SHAMT##add_uw); \ } @@ -414,14 +421,14 @@ GEN_TRANS_SHADD_UW(3) static bool trans_add_uw(DisasContext *ctx, arg_add_uw *a) { REQUIRE_64BIT(ctx); - REQUIRE_EXT(ctx, RVB); + REQUIRE_ZBA(ctx); return gen_arith(ctx, a, gen_add_uw); } static bool trans_slli_uw(DisasContext *ctx, arg_slli_uw *a) { REQUIRE_64BIT(ctx); - REQUIRE_EXT(ctx, RVB); + REQUIRE_ZBA(ctx); TCGv source1 = tcg_temp_new(); gen_get_gpr(source1, a->rs1);