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 X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E787C33CA2 for ; Thu, 9 Jan 2020 16:07:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 15EEA2075D for ; Thu, 9 Jan 2020 16:07:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="CShM5qhW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733210AbgAIQHs (ORCPT ); Thu, 9 Jan 2020 11:07:48 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:48927 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1733185AbgAIQHm (ORCPT ); Thu, 9 Jan 2020 11:07:42 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1578586062; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=6MXSkudn70UtEbMzCHfdquKWnGc9F4q7hjxMMx1IdM8=; b=CShM5qhWDv4fjOvzDZXcm36Owsv2bC89vqMJYVrCBAHMqF/nArpV0Qa0SCCCa8yn63ztpI PUtB4PmwVnoaG82aBap9LjSzk723Th+Hj79/RUVUgnmLB6ooLeo8hG9PR04k5PtLoT8Gto r/fYab2F2cUhZJ8nxX4yIr4cI132LYg= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-181-SE8psibPO9O46Lmu0mPugA-1; Thu, 09 Jan 2020 11:07:41 -0500 X-MC-Unique: SE8psibPO9O46Lmu0mPugA-1 Received: by mail-wm1-f70.google.com with SMTP id q26so619992wmq.8 for ; Thu, 09 Jan 2020 08:07:41 -0800 (PST) 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=6MXSkudn70UtEbMzCHfdquKWnGc9F4q7hjxMMx1IdM8=; b=USqt5jnTmx9Hvcvjv68h2iVYHLiVuRUa9vF/CgpLFleG7ix6lL2fqQpeWyjpCxfru/ nIO3RH37JmjK947/x/15PvDl25ah8cnkIrsMVdhbMjTNoklXK2qgYKo+g4eO4YkBL8ax IRJdg33t6Tx0l+5t4dhpdqUoglBomPiKCDkjYwXle6SBqSSvoIsmZceMf0c0mm9dvJIX vH0AKf6oPzFZG1tbj3zESsMJsbPV/ulEpA+GJ0IUfAYQNPPMWmOziCOJLO20o84PYbxv GMFZi+i1LPs+PRxEhvA9GO/cB1Yrr7/HuaAMKyMSGg3i0169T32kk4IiePqpjBiyMqVi oq4A== X-Gm-Message-State: APjAAAUlWTOz2ae9MrbpBFrYLPPm+rxv4+My6QKIgJvyQ5/HjcL44sj4 V0D/DjND3iJ5NoQd7rtyM65o9s3o/bWNkNtvKioPmPG6d+PjNKYM3K1VqqyW2UGf6qyLcVyOVsH 7z2Y0vUq8oLEOP6XULD3xp6ro X-Received: by 2002:a1c:7d92:: with SMTP id y140mr5326759wmc.145.1578586059940; Thu, 09 Jan 2020 08:07:39 -0800 (PST) X-Google-Smtp-Source: APXvYqwO98wUDEIRDRIYLKdIbYyjOEf2GJMH63VpDj9P6FrGkNnf7bEr0cdtCq9CGHTRBKqwcrGGfw== X-Received: by 2002:a1c:7d92:: with SMTP id y140mr5326736wmc.145.1578586059741; Thu, 09 Jan 2020 08:07:39 -0800 (PST) Received: from redfedo.redhat.com (host81-140-166-164.range81-140.btcentralplus.com. [81.140.166.164]) by smtp.gmail.com with ESMTPSA id h2sm8591413wrv.66.2020.01.09.08.07.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jan 2020 08:07:39 -0800 (PST) From: Julien Thierry To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: jpoimboe@redhat.com, peterz@infradead.org, raphael.gault@arm.com, catalin.marinas@arm.com, will@kernel.org, Julien Thierry Subject: [RFC v5 37/57] objtool: arm64: Decode load acquire/store release Date: Thu, 9 Jan 2020 16:02:40 +0000 Message-Id: <20200109160300.26150-38-jthierry@redhat.com> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200109160300.26150-1-jthierry@redhat.com> References: <20200109160300.26150-1-jthierry@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Decode load/store instructions provided by the v8.4 RCPC architecture extension. Suggested-by: Raphael Gault Signed-off-by: Julien Thierry --- tools/objtool/arch/arm64/decode.c | 68 +++++++++++++++++++ .../objtool/arch/arm64/include/insn_decode.h | 3 + 2 files changed, 71 insertions(+) diff --git a/tools/objtool/arch/arm64/decode.c b/tools/objtool/arch/arm64/decode.c index 0bbbacd74e48..becc563345dd 100644 --- a/tools/objtool/arch/arm64/decode.c +++ b/tools/objtool/arch/arm64/decode.c @@ -835,6 +835,11 @@ static struct aarch64_insn_decoder ld_st_decoder[] = { .value = 0b000000000000000, .decode_func = arm_decode_ld_st_exclusive, }, + { + .mask = 0b001111010000011, + .value = 0b000101000000000, + .decode_func = arm_decode_ldapr_stlr_unsc_imm, + }, { .mask = 0b001101100000000, .value = 0b001000000000000, @@ -2032,3 +2037,66 @@ int arm_decode_ld_st_regs_pac(u32 instr, enum insn_type *type, return 0; } + +int arm_decode_ldapr_stlr_unsc_imm(u32 instr, enum insn_type *type, + unsigned long *immediate, + struct list_head *ops_list) +{ + u32 imm9 = 0; + unsigned char size = 0, opc = 0, rn = 0, rt = 0, decode_field = 0; + struct stack_op *op; + + imm9 = (instr >> 12) & ONES(9); + size = (instr >> 30) & ONES(2); + opc = (instr >> 22) & ONES(2); + rn = (instr >> 5) & ONES(5); + rt = instr & ONES(5); + + decode_field = (size << 2) | opc; + if (decode_field == 0xB || + decode_field == 0xE || + decode_field == 0xF) { + return arm_decode_unknown(instr, type, immediate, ops_list); + } + + if (!stack_related_reg(rn)) { + *type = INSN_OTHER; + return 0; + } + *type = INSN_STACK; + *immediate = imm9; + + op = calloc(1, sizeof(*op)); + list_add_tail(&op->list, ops_list); + + switch (decode_field) { + case 1: + case 2: + case 3: + case 5: + case 6: + case 7: + case 9: + case 10: + case 13: + /* load */ + op->src.type = OP_SRC_REG_INDIRECT; + op->src.reg = rn; + op->src.offset = SIGN_EXTEND(imm9, 9); + op->dest.type = OP_DEST_REG; + op->dest.reg = rt; + op->dest.offset = 0; + break; + default: + /* store */ + op->dest.type = OP_SRC_REG_INDIRECT; + op->dest.reg = rn; + op->dest.offset = SIGN_EXTEND(imm9, 9); + op->src.type = OP_SRC_REG; + op->src.reg = rt; + op->src.offset = 0; + break; + } + + return 0; +} diff --git a/tools/objtool/arch/arm64/include/insn_decode.h b/tools/objtool/arch/arm64/include/insn_decode.h index d819d2e795a3..1721d9c487d0 100644 --- a/tools/objtool/arch/arm64/include/insn_decode.h +++ b/tools/objtool/arch/arm64/include/insn_decode.h @@ -106,6 +106,9 @@ int arm_decode_adv_simd_single(u32 instr, enum insn_type *type, int arm_decode_adv_simd_single_post(u32 instr, enum insn_type *type, unsigned long *immediate, struct list_head *ops_list); +int arm_decode_ldapr_stlr_unsc_imm(u32 instr, enum insn_type *type, + unsigned long *immediate, + struct list_head *ops_list); int arm_decode_ld_st_noalloc_pair_off(u32 instr, enum insn_type *type, unsigned long *immediate, struct list_head *ops_list); -- 2.21.0