From mboxrd@z Thu Jan 1 00:00:00 1970 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 5790EC54745 for ; Tue, 27 Aug 2024 23:23:46 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sj5Tq-0005gi-UZ; Tue, 27 Aug 2024 19:20:07 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sj5TQ-00041W-W6 for qemu-riscv@nongnu.org; Tue, 27 Aug 2024 19:19:42 -0400 Received: from mail-pl1-x636.google.com ([2607:f8b0:4864:20::636]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sj5TP-0000wa-0C for qemu-riscv@nongnu.org; Tue, 27 Aug 2024 19:19:40 -0400 Received: by mail-pl1-x636.google.com with SMTP id d9443c01a7336-202089e57d8so339625ad.0 for ; Tue, 27 Aug 2024 16:19:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1724800775; x=1725405575; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=SjZWcB+IcGQyCSoIg5tycoGHZJtgwFG54PQXYRnVDCY=; b=shDtd8JlTdXPDd+hBgbRK+37zd8aquTb4t23uwQR8zqbU36BTxF5DP4J9JFLC3rN6H azTRueDTwJRlrFCXQy3R7QjnWj+Kta9+wwilr5efpQ2tbpikAA5nTZdW+yiELKuv+HDp ofo8PkVsEqcimVX6eT6vv/Nj0q5Yz1mjB4WSZ0WZHtdORhSyzGr7hk4vUcHwhlZvUhrP vgAM1ICzY5aawuB62fQQNkqPT6HRMgDwJRnC8/+J7Ykvrl2UEkU3sTyVb2NavsEyxj2n UdMiKrKik8FyFYBSIM1tiptO7eYfGDhZw+dMwfIYZSlr5oauYsCiSvdKdFHjP6morObn 0TZA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724800775; x=1725405575; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=SjZWcB+IcGQyCSoIg5tycoGHZJtgwFG54PQXYRnVDCY=; b=qkeAjH+rZrpPEdkKeR+Wa2zmGyH4jLnA0/3TK5Cft/OWkjBXX2OdA2dKUu3U2XPAYB 9vV4lXCu4BhFG0UqgPf7zdx5LiZ+QUCf/i8k49VE1aGRCYss/v8XwnBbpidGePpEviHf oWADQ5FdUipFeqe2VK4mQTbce7B1xUgPCB2fSbRYEBJi3a67RhkkHD7iE7TBEjwqpiUx MV2Z9toqzLbAoj6LPPCNtKRIdG6KIZ2W9MI/Lkqm35VX7h5NSTTaS73YW8BZo8NjypIS /wj71iLnICi8IUOv+JDouQAmS3tUHO1+kTlrfs/hLn3M2nBF7u17/mwW1C1jKztabmRS ZaDg== X-Gm-Message-State: AOJu0YySL0qQlOVhP0yGxhOaOPtG2HMoXrq/f86WwdhSELvO88bOWo/+ woEDJsutAzRp8/PKCWswKPFI9gZaV2JFYHNcEcvLB+A0GGyjUp2P8Py3WMiVzWILILwy/xDWqAc p X-Google-Smtp-Source: AGHT+IGLDQAEioHQ7MD5BtwRUT1ZniIFtwyi5QTVAl6jj47DFW23R6MzrdaRfVbStl9hkydFdJpyOw== X-Received: by 2002:a17:902:e808:b0:1fd:6581:93c5 with SMTP id d9443c01a7336-204f9ca442dmr4359745ad.27.1724800775406; Tue, 27 Aug 2024 16:19:35 -0700 (PDT) Received: from debug.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-203b0ee6179sm57785155ad.92.2024.08.27.16.19.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Aug 2024 16:19:35 -0700 (PDT) From: Deepak Gupta To: qemu-riscv@nongnu.org, qemu-devel@nongnu.org Cc: palmer@dabbelt.com, Alistair.Francis@wdc.com, laurent@vivier.eu, bmeng.cn@gmail.com, liwei1518@gmail.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, jim.shu@sifive.com, andy.chiu@sifive.com, kito.cheng@sifive.com, Deepak Gupta Subject: [PATCH v10 20/21] disas/riscv: enable disassembly for compressed sspush/sspopchk Date: Tue, 27 Aug 2024 16:19:04 -0700 Message-ID: <20240827231906.553327-21-debug@rivosinc.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240827231906.553327-1-debug@rivosinc.com> References: <20240827231906.553327-1-debug@rivosinc.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::636; envelope-from=debug@rivosinc.com; helo=mail-pl1-x636.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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-riscv@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-riscv-bounces+qemu-riscv=archiver.kernel.org@nongnu.org Sender: qemu-riscv-bounces+qemu-riscv=archiver.kernel.org@nongnu.org sspush and sspopchk have equivalent compressed encoding taken from zcmop. cmop.1 is sspush x1 while cmop.5 is sspopchk x5. Due to unusual encoding for both rs1 and rs2 from space bitfield, this required a new codec. Signed-off-by: Deepak Gupta --- disas/riscv.c | 19 ++++++++++++++++++- disas/riscv.h | 1 + 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/disas/riscv.c b/disas/riscv.c index 5eafb7f7f3..6e9ba42edd 100644 --- a/disas/riscv.c +++ b/disas/riscv.c @@ -980,6 +980,8 @@ typedef enum { rv_op_ssrdp = 949, rv_op_ssamoswap_w = 950, rv_op_ssamoswap_d = 951, + rv_op_c_sspush = 952, + rv_op_c_sspopchk = 953, } rv_op; /* register names */ @@ -2244,6 +2246,10 @@ const rv_opcode_data rvi_opcode_data[] = { { "ssrdp", rv_codec_r, rv_fmt_rd, NULL, 0, 0, 0 }, { "ssamoswap.w", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, { "ssamoswap.d", rv_codec_r_a, rv_fmt_aqrl_rd_rs2_rs1, NULL, 0, 0, 0 }, + { "c.sspush", rv_codec_cmop_ss, rv_fmt_rs2, NULL, rv_op_sspush, + rv_op_sspush, 0 }, + { "c.sspopchk", rv_codec_cmop_ss, rv_fmt_rs1, NULL, rv_op_sspopchk, + rv_op_sspopchk, 0 }, }; /* CSR names */ @@ -2604,7 +2610,13 @@ static void decode_inst_opcode(rv_decode *dec, rv_isa isa) if (dec->cfg->ext_zcmop) { if ((((inst >> 2) & 0b111111) == 0b100000) && (((inst >> 11) & 0b11) == 0b0)) { - op = rv_c_mop_1 + ((inst >> 8) & 0b111); + unsigned int cmop_code = 0; + cmop_code = ((inst >> 8) & 0b111); + op = rv_c_mop_1 + cmop_code; + if (dec->cfg->ext_zicfiss) { + op = (cmop_code == 0) ? rv_op_c_sspush : op; + op = (cmop_code == 2) ? rv_op_c_sspopchk : op; + } break; } } @@ -4923,6 +4935,11 @@ static void decode_inst_operands(rv_decode *dec, rv_isa isa) case rv_codec_lp: dec->imm = operand_lpl(inst); break; + case rv_codec_cmop_ss: + dec->rd = rv_ireg_zero; + dec->rs1 = dec->rs2 = operand_crs1(inst); + dec->imm = 0; + break; }; } diff --git a/disas/riscv.h b/disas/riscv.h index 4895c5a301..6a3b371cd3 100644 --- a/disas/riscv.h +++ b/disas/riscv.h @@ -167,6 +167,7 @@ typedef enum { rv_codec_r2_imm2_imm5, rv_codec_fli, rv_codec_lp, + rv_codec_cmop_ss, } rv_codec; /* structures */ -- 2.44.0