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 E7F94C5321D for ; Mon, 26 Aug 2024 15:32:22 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sibgK-0002K4-KD; Mon, 26 Aug 2024 11:31:00 -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 1sibg1-0000yH-Ko for qemu-riscv@nongnu.org; Mon, 26 Aug 2024 11:30:42 -0400 Received: from mail-pf1-x42f.google.com ([2607:f8b0:4864:20::42f]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sibfu-0003gq-8O for qemu-riscv@nongnu.org; Mon, 26 Aug 2024 11:30:41 -0400 Received: by mail-pf1-x42f.google.com with SMTP id d2e1a72fcca58-7141b04e7a3so3642813b3a.3 for ; Mon, 26 Aug 2024 08:30:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1724686232; x=1725291032; 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=iaBot+4rInrNl+2sKxCKrSzLdPFG5sWCrI6PYLyhiIXnwX0nTlNgUabX8nk+8JDAEa QNdxzNA4MMkmUQm5hEjLTwISL1ztiCd+irjcQbSsF/B5hbqB0QnvWqKwWLN0EvtV5kYy OnyAplc4zWqz9402MVXYJ0VgubsVq2jktN2eR80ikXVIgR3V3/WfwSSY5acb0zTETim4 fgu8ek89irQMqKXdlbd5eYgYFE2AzuA6UMdJBpg8HcC5ZoPBntgmM04yH/o2NA8X0eF9 3I7ba4HQrDswnfsoVtmMEnoLL0/YLmjCRW693Fas2bktgfesfWyiZSWbMyUIOBKjiOA0 /tsA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724686232; x=1725291032; 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=cHWB2cU14Z3Qh5rRlp+2KtkHl8ppi4u9CFsmF4UuRLWQRKpqT5OWNwJCYvTPFnW3HR xlIoByoKvNR4V0nEjgVcC0hfGji11vyjWDXvMScv1L6Yc2r51yic1LNAoN7rfp4seEkE A6poCn2U5BQEgP7uJuU4BN4sEX/7DGlPEbwBhHJfEEmNtUlSgZwHQTKOKXE4YOFudezV rqeeb2YngBMoZghL20y2/Pvi3A4OSUJELhIndoUehRq2B298CTRALXljlkccFvpUsIs1 qizLqbh5+EWlcEKLOVFkJbez/q+ZQYNjGGQB/AVovdxHkJqPrTnGItpz4NSbfBgUIJR5 dOzQ== X-Gm-Message-State: AOJu0YzTkINFEdk/zK4rMnJR3URokno6JRshx93lxob6qt6HG7CM3lzo r3jpYX8srAyg0F5kWE96M50YRUW1v9qfb2+LniDwzCDdgh0upCBDjOfXrXwCbY8dLGWvgSeX14n I X-Google-Smtp-Source: AGHT+IGnExbwGp8sDMFL9jO1C8jeoxGNOm6sbUQeq5mTwBeMglnMQQCEnZVUS3wlSuOen1Nb2o3ODg== X-Received: by 2002:a05:6a20:e608:b0:1c2:a0b2:e69 with SMTP id adf61e73a8af0-1cc89ee5ebfmr11053654637.33.1724686231500; Mon, 26 Aug 2024 08:30:31 -0700 (PDT) Received: from debug.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7143422eaabsm7396525b3a.12.2024.08.26.08.30.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Aug 2024 08:30:31 -0700 (PDT) From: Deepak Gupta To: qemu-riscv@nongnu.org, qemu-devel@nongnu.org Cc: palmer@dabbelt.com, Alistair.Francis@wdc.com, bmeng.cn@gmail.com, liwei1518@gmail.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, jim.shu@sifive.com, andy.chiu@sifive.com, richard.henderson@linaro.org, kito.cheng@sifive.com, Deepak Gupta Subject: [PATCH v9 17/17] disas/riscv: enable disassembly for compressed sspush/sspopchk Date: Mon, 26 Aug 2024 08:29:49 -0700 Message-ID: <20240826152949.294506-18-debug@rivosinc.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240826152949.294506-1-debug@rivosinc.com> References: <20240826152949.294506-1-debug@rivosinc.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::42f; envelope-from=debug@rivosinc.com; helo=mail-pf1-x42f.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