From patchwork Wed Aug 25 16:59:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philipp Tomsich X-Patchwork-Id: 1520890 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=vrull-eu.20150623.gappssmtp.com header.i=@vrull-eu.20150623.gappssmtp.com header.a=rsa-sha256 header.s=20150623 header.b=urw05wuU; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 4Gvt1n0yQBz9sSs for ; Thu, 26 Aug 2021 03:16:45 +1000 (AEST) Received: from localhost ([::1]:53650 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mIwW2-0002FP-U2 for incoming@patchwork.ozlabs.org; Wed, 25 Aug 2021 13:16:42 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45284) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mIwFm-0004xC-Je for qemu-devel@nongnu.org; Wed, 25 Aug 2021 12:59:54 -0400 Received: from mail-lf1-x12f.google.com ([2a00:1450:4864:20::12f]:35633) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mIwFk-0000fV-5P for qemu-devel@nongnu.org; Wed, 25 Aug 2021 12:59:54 -0400 Received: by mail-lf1-x12f.google.com with SMTP id i28so407724lfl.2 for ; Wed, 25 Aug 2021 09:59:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vrull-eu.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=c1rr82jxN5+jzKNI4EU4MahzmM6uD7w3fmff1rpM7zc=; b=urw05wuUQPQwIUoN8fVAMdqepfhsSc6JQdhPQ1rmbN77205gLvO6gHygNqioBKvflz GHyBhUjh24snL4vIdmcWjTCkXEAJOR7lxQjkDDa/qzeDq7Aqw8iZ+0SSokXR0QysjaWi B+ob0nuIXOBPNzEi0xTeXUgWuRHSkAtc9F2ch12UKBsyBBIYn16vJ2f+ANw84UH9y6L0 AfBjJmxO2+1TO+NUpcLBBbU4fSK6JyGCxdXTo0rW+AVQ+exHz+TYkDA/BI8ESQblVZvl Y6/22MRu5oU0V85+JXtnh+yEwTNGMCD1AI9jiRC0xjPEGrjeLkn6oLdykcWnyGRV+rvl cCxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=c1rr82jxN5+jzKNI4EU4MahzmM6uD7w3fmff1rpM7zc=; b=M0G6gTCHbE2OK8SmaxANFwzeK6JQeT3zOEMmKVfHQzo5tiot0GBf9G26eVtpC4/vfr zz8XY2AwV5UtGSlbYOE3GV/6Eu6291uOSAYEym+IeDiRFUaljME/pJ4wkIkEZrNat2rw TzWj47/b+0hi+CEZJhjxtr/X5AT8ISsC9VAWw+XwdOOqK8DiYhGyaWFOsT/yJeEgLXoq QR2+bg2dQeQbWKfZTuZr/z7YcWuoIAYgnm7wxdBTa8PaMBsI+nQANrejtOmidZmlcGGw 9YQtT37ecHBFeEBNTOlxuCTdeRmJufQ6Tdxn5YBttQ1AuL1q2nHbV/92aKGN3ujRhh9d Ru1Q== X-Gm-Message-State: AOAM533EHIgiPwxz+tH+a3BCFKy/pyt8hXegfMUx9JlKGA9EeGXutYBy +/O8tJC25wa7KOq6OviIPHk5he2haKMYd3a8 X-Google-Smtp-Source: ABdhPJxkoalunC1LT3GzXpMsIDgzy26XXm8zycXgaXnvv0G9IQp1H/HG0jMuTZF6ElDntXDTRmOiHg== X-Received: by 2002:a05:6512:b20:: with SMTP id w32mr14477887lfu.508.1629910790376; Wed, 25 Aug 2021 09:59:50 -0700 (PDT) Received: from localhost.localdomain ([2a01:4f9:3a:1e26::2]) by smtp.gmail.com with ESMTPSA id r2sm59619ljj.14.2021.08.25.09.59.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Aug 2021 09:59:50 -0700 (PDT) From: Philipp Tomsich To: qemu-devel@nongnu.org Subject: [PATCH v6 13/14] target/riscv: Remove RVB (replaced by Zb[abcs] Date: Wed, 25 Aug 2021 18:59:06 +0200 Message-Id: <20210825165907.34026-14-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::12f; envelope-from=philipp.tomsich@vrull.eu; helo=mail-lf1-x12f.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" With everything classified as Zb[abcs] and pre-0.93 draft-B instructions that are not part of Zb[abcs] removed, we can remove the remaining support code for RVB. Note that RVB has been retired for good and misa.B will neither mean 'some' or 'all of' Zb*: https://lists.riscv.org/g/tech-bitmanip/message/532 Signed-off-by: Philipp Tomsich Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis --- (no changes since v3) Changes in v3: - Removing RVB moved into a separate commit at the tail-end of the series. target/riscv/cpu.c | 27 --------------------------- target/riscv/cpu.h | 3 --- target/riscv/insn32.decode | 4 ---- 3 files changed, 34 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index c7bc1f9f44..93bd8f7802 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -127,11 +127,6 @@ static void set_priv_version(CPURISCVState *env, int priv_ver) env->priv_ver = priv_ver; } -static void set_bext_version(CPURISCVState *env, int bext_ver) -{ - env->bext_ver = bext_ver; -} - static void set_vext_version(CPURISCVState *env, int vext_ver) { env->vext_ver = vext_ver; @@ -393,7 +388,6 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp) CPURISCVState *env = &cpu->env; RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(dev); int priv_version = PRIV_VERSION_1_11_0; - int bext_version = BEXT_VERSION_0_93_0; int vext_version = VEXT_VERSION_0_07_1; target_ulong target_misa = env->misa; Error *local_err = NULL; @@ -418,7 +412,6 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp) } set_priv_version(env, priv_version); - set_bext_version(env, bext_version); set_vext_version(env, vext_version); if (cpu->cfg.mmu) { @@ -496,24 +489,6 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp) if (cpu->cfg.ext_h) { target_misa |= RVH; } - if (cpu->cfg.ext_b) { - target_misa |= RVB; - - if (cpu->cfg.bext_spec) { - if (!g_strcmp0(cpu->cfg.bext_spec, "v0.93")) { - bext_version = BEXT_VERSION_0_93_0; - } else { - error_setg(errp, - "Unsupported bitmanip spec version '%s'", - cpu->cfg.bext_spec); - return; - } - } else { - qemu_log("bitmanip version is not specified, " - "use the default value v0.93\n"); - } - set_bext_version(env, bext_version); - } if (cpu->cfg.ext_v) { target_misa |= RVV; if (!is_power_of_2(cpu->cfg.vlen)) { @@ -584,7 +559,6 @@ static Property riscv_cpu_properties[] = { DEFINE_PROP_BOOL("s", RISCVCPU, cfg.ext_s, true), DEFINE_PROP_BOOL("u", RISCVCPU, cfg.ext_u, true), /* This is experimental so mark with 'x-' */ - DEFINE_PROP_BOOL("x-b", RISCVCPU, cfg.ext_b, false), DEFINE_PROP_BOOL("x-zba", RISCVCPU, cfg.ext_zba, false), DEFINE_PROP_BOOL("x-zbb", RISCVCPU, cfg.ext_zbb, false), DEFINE_PROP_BOOL("x-zbc", RISCVCPU, cfg.ext_zbc, false), @@ -595,7 +569,6 @@ static Property riscv_cpu_properties[] = { DEFINE_PROP_BOOL("Zifencei", RISCVCPU, cfg.ext_ifencei, true), DEFINE_PROP_BOOL("Zicsr", RISCVCPU, cfg.ext_icsr, true), DEFINE_PROP_STRING("priv_spec", RISCVCPU, cfg.priv_spec), - DEFINE_PROP_STRING("bext_spec", RISCVCPU, cfg.bext_spec), DEFINE_PROP_STRING("vext_spec", RISCVCPU, cfg.vext_spec), DEFINE_PROP_UINT16("vlen", RISCVCPU, cfg.vlen, 128), DEFINE_PROP_UINT16("elen", RISCVCPU, cfg.elen, 64), diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index 7c4cd8ea89..77e8b06106 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -67,7 +67,6 @@ #define RVS RV('S') #define RVU RV('U') #define RVH RV('H') -#define RVB RV('B') /* S extension denotes that Supervisor mode exists, however it is possible to have a core that support S mode but does not have an MMU and there @@ -83,7 +82,6 @@ enum { #define PRIV_VERSION_1_10_0 0x00011000 #define PRIV_VERSION_1_11_0 0x00011100 -#define BEXT_VERSION_0_93_0 0x00009300 #define VEXT_VERSION_0_07_1 0x00000701 enum { @@ -288,7 +286,6 @@ struct RISCVCPU { bool ext_f; bool ext_d; bool ext_c; - bool ext_b; bool ext_s; bool ext_u; bool ext_h; diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index abf794095a..0f6020ccb1 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -711,10 +711,6 @@ rorw 0110000 .......... 101 ..... 0111011 @r # instruction, so we use different handler functions to differentiate. zext_h_64 0000100 00000 ..... 100 ..... 0111011 @r2 -# *** RV32B Standard Extension *** - -# *** RV64B Standard Extension (in addition to RV32B) *** - # *** RV32 Zbc Standard Extension *** clmul 0000101 .......... 001 ..... 0110011 @r clmulh 0000101 .......... 011 ..... 0110011 @r