From patchwork Tue May 31 03:07:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Weiwei Li X-Patchwork-Id: 12865043 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2B0EFC433F5 for ; Tue, 31 May 2022 03:09:08 +0000 (UTC) Received: from localhost ([::1]:50784 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nvsFn-0001fJ-74 for qemu-devel@archiver.kernel.org; Mon, 30 May 2022 23:09:07 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44486) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nvsEj-00080S-Dt; Mon, 30 May 2022 23:08:01 -0400 Received: from smtp21.cstnet.cn ([159.226.251.21]:56356 helo=cstnet.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nvsEg-0002rz-2z; Mon, 30 May 2022 23:08:00 -0400 Received: from localhost.localdomain (unknown [180.156.147.178]) by APP-01 (Coremail) with SMTP id qwCowAAnfxZ_hpViZA+2Cw--.44836S2; Tue, 31 May 2022 11:07:44 +0800 (CST) From: Weiwei Li To: palmer@dabbelt.com, alistair.francis@wdc.com, bin.meng@windriver.com, qemu-riscv@nongnu.org, qemu-devel@nongnu.org Cc: wangjunqiang@iscas.ac.cn, lazyparser@gmail.com, Weiwei Li Subject: [PATCH v3] target/riscv: add support for zmmul extension v0.1 Date: Tue, 31 May 2022 11:07:32 +0800 Message-Id: <20220531030732.3850-1-liweiwei@iscas.ac.cn> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-CM-TRANSID: qwCowAAnfxZ_hpViZA+2Cw--.44836S2 X-Coremail-Antispam: 1UD129KBjvJXoWxCr1ruryDZF4kGr1kKw4UArb_yoWruFWUpr W8WFW7JFWDtFyfAayfJFn0qF1xGan3K3y7t39avws5GFWfCrZ8WF1DK3yakr15JFWkZF13 C3WUAr98Jw40qa7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUyE14x267AKxVW8JVW5JwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26r4j6ryUM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4j 6F4UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gr 1j6F4UJwAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv 7VC0I7IYx2IY67AKxVWUGVWUXwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r 1j6r4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwCF04k20xvY0x0E wIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E74 80Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0 I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Jr0_Gr1lIxAIcVCF04 k26cxKx2IYs7xG6rWUJVWrZr1UMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIE c7CjxVAFwI0_Jr0_GrUvcSsGvfC2KfnxnUUI43ZEXa7VU1a9aPUUUUU== X-Originating-IP: [180.156.147.178] X-CM-SenderInfo: 5olzvxxzhlqxpvfd2hldfou0/ Received-SPF: pass client-ip=159.226.251.21; envelope-from=liweiwei@iscas.ac.cn; helo=cstnet.cn X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" - includes all multiplication operations for M extension Signed-off-by: Weiwei Li Signed-off-by: Junqiang Wang Reviewed-by: Víctor Colombo Reviewed-by: Alistair Francis v2: * disable M when both M and Zmmul are enabled v3: * add reviewed-by info, rebase to upstream/master --- target/riscv/cpu.c | 7 +++++++ target/riscv/cpu.h | 1 + target/riscv/insn_trans/trans_rvm.c.inc | 18 ++++++++++++------ 3 files changed, 20 insertions(+), 6 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index a91253d4bd..bcbba3fbd5 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -600,6 +600,11 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp) cpu->cfg.ext_ifencei = true; } + if (cpu->cfg.ext_m && cpu->cfg.ext_zmmul) { + warn_report("Zmmul will override M"); + cpu->cfg.ext_m = false; + } + if (cpu->cfg.ext_i && cpu->cfg.ext_e) { error_setg(errp, "I and E extensions are incompatible"); @@ -905,6 +910,7 @@ static Property riscv_cpu_properties[] = { /* These are experimental so mark with 'x-' */ DEFINE_PROP_BOOL("x-j", RISCVCPU, cfg.ext_j, false), + DEFINE_PROP_BOOL("x-zmmul", RISCVCPU, cfg.ext_zmmul, false), /* ePMP 0.9.3 */ DEFINE_PROP_BOOL("x-epmp", RISCVCPU, cfg.epmp, false), DEFINE_PROP_BOOL("x-aia", RISCVCPU, cfg.aia, false), @@ -1031,6 +1037,7 @@ static void riscv_isa_string_ext(RISCVCPU *cpu, char **isa_str, int max_str_len) struct isa_ext_data isa_edata_arr[] = { ISA_EDATA_ENTRY(zicsr, ext_icsr), ISA_EDATA_ENTRY(zifencei, ext_ifencei), + ISA_EDATA_ENTRY(zmmul, ext_zmmul), ISA_EDATA_ENTRY(zfh, ext_zfh), ISA_EDATA_ENTRY(zfhmin, ext_zfhmin), ISA_EDATA_ENTRY(zfinx, ext_zfinx), diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index f08c3e8813..890d33cebb 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -411,6 +411,7 @@ struct RISCVCPUConfig { bool ext_zhinxmin; bool ext_zve32f; bool ext_zve64f; + bool ext_zmmul; uint32_t mvendorid; uint64_t marchid; diff --git a/target/riscv/insn_trans/trans_rvm.c.inc b/target/riscv/insn_trans/trans_rvm.c.inc index 16b029edf0..ec7f705aab 100644 --- a/target/riscv/insn_trans/trans_rvm.c.inc +++ b/target/riscv/insn_trans/trans_rvm.c.inc @@ -18,6 +18,12 @@ * this program. If not, see . */ +#define REQUIRE_M_OR_ZMMUL(ctx) do { \ + if (!ctx->cfg_ptr->ext_zmmul && !has_ext(ctx, RVM)) { \ + return false; \ + } \ +} while (0) + static void gen_mulhu_i128(TCGv r2, TCGv r3, TCGv al, TCGv ah, TCGv bl, TCGv bh) { TCGv tmpl = tcg_temp_new(); @@ -65,7 +71,7 @@ static void gen_mul_i128(TCGv rl, TCGv rh, static bool trans_mul(DisasContext *ctx, arg_mul *a) { - REQUIRE_EXT(ctx, RVM); + REQUIRE_M_OR_ZMMUL(ctx); return gen_arith(ctx, a, EXT_NONE, tcg_gen_mul_tl, gen_mul_i128); } @@ -109,7 +115,7 @@ static void gen_mulh_w(TCGv ret, TCGv s1, TCGv s2) static bool trans_mulh(DisasContext *ctx, arg_mulh *a) { - REQUIRE_EXT(ctx, RVM); + REQUIRE_M_OR_ZMMUL(ctx); return gen_arith_per_ol(ctx, a, EXT_SIGN, gen_mulh, gen_mulh_w, gen_mulh_i128); } @@ -161,7 +167,7 @@ static void gen_mulhsu_w(TCGv ret, TCGv arg1, TCGv arg2) static bool trans_mulhsu(DisasContext *ctx, arg_mulhsu *a) { - REQUIRE_EXT(ctx, RVM); + REQUIRE_M_OR_ZMMUL(ctx); return gen_arith_per_ol(ctx, a, EXT_NONE, gen_mulhsu, gen_mulhsu_w, gen_mulhsu_i128); } @@ -176,7 +182,7 @@ static void gen_mulhu(TCGv ret, TCGv s1, TCGv s2) static bool trans_mulhu(DisasContext *ctx, arg_mulhu *a) { - REQUIRE_EXT(ctx, RVM); + REQUIRE_M_OR_ZMMUL(ctx); /* gen_mulh_w works for either sign as input. */ return gen_arith_per_ol(ctx, a, EXT_ZERO, gen_mulhu, gen_mulh_w, gen_mulhu_i128); @@ -349,7 +355,7 @@ static bool trans_remu(DisasContext *ctx, arg_remu *a) static bool trans_mulw(DisasContext *ctx, arg_mulw *a) { REQUIRE_64_OR_128BIT(ctx); - REQUIRE_EXT(ctx, RVM); + REQUIRE_M_OR_ZMMUL(ctx); ctx->ol = MXL_RV32; return gen_arith(ctx, a, EXT_NONE, tcg_gen_mul_tl, NULL); } @@ -389,7 +395,7 @@ static bool trans_remuw(DisasContext *ctx, arg_remuw *a) static bool trans_muld(DisasContext *ctx, arg_muld *a) { REQUIRE_128BIT(ctx); - REQUIRE_EXT(ctx, RVM); + REQUIRE_M_OR_ZMMUL(ctx); ctx->ol = MXL_RV64; return gen_arith(ctx, a, EXT_SIGN, tcg_gen_mul_tl, NULL); }