From patchwork Mon Aug 9 09:18:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Almbladh X-Patchwork-Id: 494272 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=unavailable 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 D0BC6C19F39 for ; Mon, 9 Aug 2021 09:19:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B5D8560EE7 for ; Mon, 9 Aug 2021 09:19:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234247AbhHIJTc (ORCPT ); Mon, 9 Aug 2021 05:19:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58118 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234350AbhHIJTK (ORCPT ); Mon, 9 Aug 2021 05:19:10 -0400 Received: from mail-ej1-x631.google.com (mail-ej1-x631.google.com [IPv6:2a00:1450:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 331B7C061799 for ; Mon, 9 Aug 2021 02:18:50 -0700 (PDT) Received: by mail-ej1-x631.google.com with SMTP id u3so27781335ejz.1 for ; Mon, 09 Aug 2021 02:18:50 -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=gLIKNyHzrBewFnJ7SQG7VgJD3e9wDbcV4oYlNStNwLU=; b=JtFHbvYWp5+Eq0Gc5l/rELtoIbiBrzfKrFZ9ZcArZ+mRhMjfXu565OzTtJ5XT0y0GP PmiBbo5gwaOq+l52ogHz9mtiaN2Ie0ZOdv9MAe+kZnjqnuVJc/x1EEGUUeXKefDkOsqu /hdEyniJT5+LYRUIC5cQQkKEIWU5Cwh8zWZX2OOwcU9VH0Ub/UFW1C/ngomz2Evp6Alp IKpf2Wx1VJHKRwmd9YmX186R5EMTxWKsAkuNpuJPZr+ZatmvOQurPLPU4Oc10PwXYG8o 0AhmlqUJBbYHy/vfDBt0INiRlzqLGWg0TsAWN0d9nt3Q1EHIMh6bQjhm3aSvO1Okkj46 U5gA== 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=gLIKNyHzrBewFnJ7SQG7VgJD3e9wDbcV4oYlNStNwLU=; b=o8zQgOekV+3VQU4KiVvTf8EuRE1rGT3m8L7eatEZLBEXRnLY3Kh48YoYVdbG5nrNtb 7UbhYi9u0ipYM7uLXD5b+lsNOQejmM9EgLePXyBjQklx3LAFwZeRAqyhXRxcGckHr5ek LpYB+2WFE03cqtUNnWtlpcRFpFdn6NPeXe+tF9TcBU9+AORuiLithWkB3vC6DyE2B/iA kCDTo/bXuA6Qqwp08mYHr3WOH3I2IqkJD1LY8mdSNN0FhTqhqF9ToDvGLvFum6WYyWhw BjQtLmJwpQPRS894ZBYjr1M94zUZkJb/9bdUAMuLbcGNLwtCsn0wSDSyv7i7IEGXiz+y CC+g== X-Gm-Message-State: AOAM531ld+xuudqAlXO7unFw9e+my19bqucdBgoze1q5aA8M+LFTcOzs GLfff3463a3iEtf0Dpcwa80LqA== X-Google-Smtp-Source: ABdhPJyGBb2tgCfXQAcbX4LRHU5CG4zU3dhF1mSqMYJwHhm7reoYQZPlUsr9dLhV9LxihIB2X1ELuw== X-Received: by 2002:a17:906:43c9:: with SMTP id j9mr21442861ejn.57.1628500728838; Mon, 09 Aug 2021 02:18:48 -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 dg24sm1234250edb.6.2021.08.09.02.18.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Aug 2021 02:18:48 -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 bpf-next v2 07/14] bpf/tests: Add more ALU64 BPF_MUL tests Date: Mon, 9 Aug 2021 11:18:22 +0200 Message-Id: <20210809091829.810076-8-johan.almbladh@anyfinetworks.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210809091829.810076-1-johan.almbladh@anyfinetworks.com> References: <20210809091829.810076-1-johan.almbladh@anyfinetworks.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@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 b95bed03ab1b..072f9c51bd9b 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",