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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 610A6C4320A for ; Wed, 28 Jul 2021 17:05:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4EF1860FED for ; Wed, 28 Jul 2021 17:05:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230054AbhG1RFq (ORCPT ); Wed, 28 Jul 2021 13:05:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47568 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231151AbhG1RFm (ORCPT ); Wed, 28 Jul 2021 13:05:42 -0400 Received: from mail-ed1-x52c.google.com (mail-ed1-x52c.google.com [IPv6:2a00:1450:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8DE89C061796 for ; Wed, 28 Jul 2021 10:05:38 -0700 (PDT) Received: by mail-ed1-x52c.google.com with SMTP id r16so4192656edt.7 for ; Wed, 28 Jul 2021 10:05:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=anyfinetworks-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Pe63UuYeIyMU5x24QHHmiSesESIJt/GDpBcNT8fOBl8=; b=WGtY+++TLY6T/IMgDHaKgIFx1Aw7rqwzXPSjDHr9+r5RpefXYxU+un+luzXZRrO4EH EIFM9rDBvrLLi9xXrNKg78dF5idiiAOPg2Cz3aJKgMjXU7/FmGE7Eal1BunqjSrV0Mt8 e/uQq1HiZiZl/La7bIv5ACs6LOrSBQWMNJ6MkX3xV65X1j3L3kTXxckppz5YFNTpE6Gx ws1NMvik6/BN888cnmITvbRV0JFk9s35sCMPVw4MX0Dlz4Ys264+7fiip+/3XPoID4Mn lTSKTCjcdhQo2wiQhSmw8yc4QddeQX6b07voZRjenB9zr9PggXVPyO+gIp8o+8Et7vxp jLZA== 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=Pe63UuYeIyMU5x24QHHmiSesESIJt/GDpBcNT8fOBl8=; b=Oy/y3Qh1bq9Ctn/q7e+9xQpMaa+RW+8z7Zgoum5pSDDGmiUBQdtFFNcEoShCbWpJpv nzRaVFcpjZmnFqgxG5MrWWcKXW3b5H4Ye0zpRvbbga3nqgwmeiSYaA/4KHt4d58HhxwR 7nBCG2+tQcw/jSXkdRhPQY21Xw6ubiiTmwLDoHvRSBcSYfGlPr4ORoA4YlET0R0XvFVb 8eolqzFAfExdheHkYj8f40hVrJ4DkkFBq9wu/ovaVKaZjYW733e9WJxvQSNf9rXee09M US0uICmqQM7mnvO2hjoMXw6ALVlCqiAY/wSbMa5QrmrK6Dt5JviDohb9flYymsZR+h96 HQnw== X-Gm-Message-State: AOAM533Prow0GaZtnPqwkCNFED1sfJdbMfiFoDXBcYe460UNqtDWVcvl 285pnn4cdlW6JvjaCkK2Gsp6oQ== X-Google-Smtp-Source: ABdhPJw2eyzsO92f9niYPFPLfLvBxvF1Dy0y1ScBOfA9gO7bDCKXU4v3/kzRKGX/DXHdRv1U1zdk0g== X-Received: by 2002:a05:6402:2074:: with SMTP id bd20mr981974edb.123.1627491937197; Wed, 28 Jul 2021 10:05:37 -0700 (PDT) Received: from anpc2.lan (static-213-115-136-2.sme.telenor.se. [213.115.136.2]) by smtp.gmail.com with ESMTPSA id bd24sm139349edb.56.2021.07.28.10.05.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Jul 2021 10:05:36 -0700 (PDT) From: Johan Almbladh To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org Cc: kafai@fb.com, songliubraving@fb.com, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, Tony.Ambardar@gmail.com, netdev@vger.kernel.org, bpf@vger.kernel.org, Johan Almbladh Subject: [PATCH 07/14] bpf/tests: Add more ALU64 BPF_MUL tests Date: Wed, 28 Jul 2021 19:04:55 +0200 Message-Id: <20210728170502.351010-8-johan.almbladh@anyfinetworks.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210728170502.351010-1-johan.almbladh@anyfinetworks.com> References: <20210728170502.351010-1-johan.almbladh@anyfinetworks.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org This patch adds BPF_MUL tests for 64x32 and 64x64 multiply. Mainly testing 32-bit JITs that implement ALU64 operations with two 32-bit CPU registers per operand. Signed-off-by: Johan Almbladh --- lib/test_bpf.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/lib/test_bpf.c b/lib/test_bpf.c index b930fa35b9ef..eb61088a674f 100644 --- a/lib/test_bpf.c +++ b/lib/test_bpf.c @@ -3051,6 +3051,31 @@ static struct bpf_test tests[] = { { }, { { 0, 2147483647 } }, }, + { + "ALU64_MUL_X: 64x64 multiply, low word", + .u.insns_int = { + BPF_LD_IMM64(R0, 0x0fedcba987654321LL), + BPF_LD_IMM64(R1, 0x123456789abcdef0LL), + BPF_ALU64_REG(BPF_MUL, R0, R1), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 0xe5618cf0 } } + }, + { + "ALU64_MUL_X: 64x64 multiply, high word", + .u.insns_int = { + BPF_LD_IMM64(R0, 0x0fedcba987654321LL), + BPF_LD_IMM64(R1, 0x123456789abcdef0LL), + BPF_ALU64_REG(BPF_MUL, R0, R1), + BPF_ALU64_IMM(BPF_RSH, R0, 32), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 0x2236d88f } } + }, /* BPF_ALU | BPF_MUL | BPF_K */ { "ALU_MUL_K: 2 * 3 = 6", @@ -3161,6 +3186,29 @@ static struct bpf_test tests[] = { { }, { { 0, 0x1 } }, }, + { + "ALU64_MUL_K: 64x32 multiply, low word", + .u.insns_int = { + BPF_LD_IMM64(R0, 0x0123456789abcdefLL), + BPF_ALU64_IMM(BPF_MUL, R0, 0x12345678), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 0xe242d208 } } + }, + { + "ALU64_MUL_K: 64x32 multiply, high word", + .u.insns_int = { + BPF_LD_IMM64(R0, 0x0123456789abcdefLL), + BPF_ALU64_IMM(BPF_MUL, R0, 0x12345678), + BPF_ALU64_IMM(BPF_RSH, R0, 32), + BPF_EXIT_INSN(), + }, + INTERNAL, + { }, + { { 0, 0xc28f5c28 } } + }, /* BPF_ALU | BPF_DIV | BPF_X */ { "ALU_DIV_X: 6 / 2 = 3", -- 2.25.1