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[34.140.232.180]) by smtp.gmail.com with ESMTPSA id d10-20020a5d4f8a000000b0034cc78572f0sm1193183wru.102.2024.04.27.15.33.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 27 Apr 2024 15:33:58 -0700 (PDT) Date: Sat, 27 Apr 2024 22:33:55 +0000 From: Mostafa Saleh To: Jason Gunthorpe Cc: iommu@lists.linux.dev, Joerg Roedel , linux-arm-kernel@lists.infradead.org, Robin Murphy , Will Deacon , Eric Auger , Moritz Fischer , Moritz Fischer , Michael Shavit , Nicolin Chen , patches@lists.linux.dev, Shameerali Kolothum Thodi Subject: Re: [PATCH v7 9/9] iommu/arm-smmu-v3: Add unit tests for arm_smmu_write_entry Message-ID: References: <0-v7-cb149db3a320+3b5-smmuv3_newapi_p2_jgg@nvidia.com> <9-v7-cb149db3a320+3b5-smmuv3_newapi_p2_jgg@nvidia.com> <20240422142429.GE49823@nvidia.com> Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20240422142429.GE49823@nvidia.com> On Mon, Apr 22, 2024 at 11:24:29AM -0300, Jason Gunthorpe wrote: > On Fri, Apr 19, 2024 at 09:24:52PM +0000, Mostafa Saleh wrote: > > > +static void arm_smmu_test_make_sva_release_cd(struct arm_smmu_cd *cd, > > > + unsigned int asid) > > > +{ > > > + struct arm_smmu_master master = { > > > + .smmu = &smmu, > > > + }; > > > + > > > + arm_smmu_make_sva_cd(cd, &master, NULL, asid); > > > +} > > > + > > > > The test doesn’t build with SVA disabled, it fails with: > > aarch64-linux-gnu-ld: Unexpected GOT/PLT entries detected! > > aarch64-linux-gnu-ld: Unexpected run-time procedure linkages detected! > > aarch64-linux-gnu-ld: drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-test.o: in function `arm_smmu_test_make_sva_release_cd': > > .../linux/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-test.c:409:(.text+0x17c): undefined reference to `arm_smmu_make_sva_cd' > > aarch64-linux-gnu-ld: drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-test.o: in function `arm_smmu_test_make_sva_cd': > > .../linux/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-test.c:399:(.text+0x230): undefined reference to `arm_smmu_make_sva_cd' > > > > I belive this check should be guarded under SVA. > > Ugh yes, 0-day just hit this too. > > I'm just going to do this: > > config ARM_SMMU_V3_KUNIT_TEST > bool "KUnit tests for arm-smmu-v3 driver" if !KUNIT_ALL_TESTS > depends on KUNIT > + depends on ARM_SMMU_V3_SVA > default KUNIT_ALL_TESTS > help > Enable this option to unit-test arm-smmu-v3 driver functions. > > > Instead of adding #ifdefs. No reason not to test the whole driver? > Sounds good, I guess that option will be only used for development. Thanks, Mostafa > > > @@ -980,7 +968,7 @@ void arm_smmu_tlb_inv_asid(struct arm_smmu_device *smmu, u16 asid) > > > * would be nice if this was complete according to the spec, but minimally it > > > * has to capture the bits this driver uses. > > > */ > > > -static void arm_smmu_get_ste_used(const __le64 *ent, __le64 *used_bits) > > > +void arm_smmu_get_ste_used(const __le64 *ent, __le64 *used_bits) > > > > IMO we should not export all these low level functions unconditionally. > > KUNIT already defines “VISIBLE_IF_KUNIT” which sets symbols to be static > > if CONFIG_KUNIT is not enabled. Or maybe even guard it for this test > > like what btrfs does with “EXPORT_FOR_TESTS” > > Sure, that doesn't look like too much trouble long term. > > Thanks, > Jason 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 EE716C4345F for ; Sat, 27 Apr 2024 22:34:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=exNTtrGhDPldbE+83UdTEA/vyjkrha7n3yYSuQ8fvrk=; b=da6o+MfcGcr3iL zVdGi+ATkUhOtRnnNruDdFB3vzJP+6duK6S8xl/L1u926riefkyWVA7ivh4efxp20VMEQ2us2/pxu +z9hjy1AiZNQiuBlR0S7PLGuuYANncJRAz1TjsAhwuRWwds54vDlHJq1Tqi6jM6TalvuZEjTNFF/w UsK1ajVnjqkr2zfJYDBklbLL2UDpgBZRjU98TAQJFA8GhoxT5eJDhAJCA+CHCgNYXbTdGEUDP0K3+ F9gGfWR/yhK/3P2/e4r5hVbYk6XoOgZzDK1zxvZialwO9vZXMOo0s3AHM4HKHh2Hl9AaesYMK/kZa Mj5V66oKVGL0ZUZUmAeQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s0qcP-0000000GLkU-2gDQ; Sat, 27 Apr 2024 22:34:05 +0000 Received: from mail-wm1-x32d.google.com ([2a00:1450:4864:20::32d]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s0qcL-0000000GLk0-3hGh for linux-arm-kernel@lists.infradead.org; Sat, 27 Apr 2024 22:34:03 +0000 Received: by mail-wm1-x32d.google.com with SMTP id 5b1f17b1804b1-418820e6effso32205e9.0 for ; Sat, 27 Apr 2024 15:34:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1714257239; x=1714862039; darn=lists.infradead.org; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date:from:to :cc:subject:date:message-id:reply-to; bh=V/i8u7CaJgG+Eq6v0eYBH4Z15Kbb3B5gzHjqYZDCiHg=; b=ducBt32t7JaJDmlf1FAaAg36IfMa+K/wX+LY0a99XlaGUDCjmz3sivX4CfcgtmwUF/ PNV3WBTFmIDCTuqpcocdB09/v06+PrfGB1lvPp1t9BZYJ5+HCVgSCbQ1bo1P7zX4gEO3 v10upocuRDazy1OTc0IHhsZ+7tJrEv7io2E/WJ1+fpVDNcLtEcJtlobFV/kwq2r00sC/ W43kl2xcGQ7uoOAK6cYLBb4laFgSgv6HmDoDU7bLmBuEiUJsYb4LOSxiykDXaCG9cR+2 VSOSx0az66hrezM/lWzLqMK0BnAqxMaHoBHIQ7rpMrS/UnmdHjXWgdtcfmu1m3dXQsft VTaQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714257239; x=1714862039; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=V/i8u7CaJgG+Eq6v0eYBH4Z15Kbb3B5gzHjqYZDCiHg=; b=m4Cug0cGOQYi9RDPsDi27l55dFyRpwbT4kv72Zz+P1ybYEwcGBc9KTfKuNiSd21Wwf tVSkX3Q3DqoDS+5xNLcstO1l25ue74hHIkodhyBhk+phsqTfjkAIp0AH3pIqGNrWijJG 9MmROs3wetoOjjabtf4QrIGySjp5+eFvwNANy3ZLClfOI4X5J0QKKujsjaf41+3pJno/ qq1pF80ehMVvzjVy2ruRyo1UfVj1M1d5X57PzBdU57i7P0nhbj5OVsVpZJctxlNEf1KA uXwKdkdOVGD07FoIaOcgMF+cJvB66uNlaRV53lC7Y1BLdVAUxX7ybzCp3kzF5pA5rKup xgfg== X-Forwarded-Encrypted: i=1; AJvYcCUQX2oiUbOBR/XGFcttMH9hYvmO4umqrrmkOTbbeqRoIS3iwFUD7C4HyrZeipgT+m4xmT3YkdYxXulH3wU/6A/PAHNNZyd6MnLtdCVyf1GefoO+vG8= X-Gm-Message-State: AOJu0Yzj4I22BZ2KWQiZQeesCUC2RMbqMGmLZc+PV3OXHWokpTnZTIoK NnoZu77uhLFDV3SdIxXtecl5LAcRbJ9+E+mnnrir/lpRtX6m3U92eHOKWQvN4g== X-Google-Smtp-Source: AGHT+IEipR/v+Af76x/mX+4qD42v1PKzqBQ4TbxCJAuxAMJx1QDtSRh/JXJyyC1j2l74SUgrGFb+8w== X-Received: by 2002:a05:600c:470a:b0:41b:ff4e:c8a4 with SMTP id v10-20020a05600c470a00b0041bff4ec8a4mr46926wmo.0.1714257239313; Sat, 27 Apr 2024 15:33:59 -0700 (PDT) Received: from google.com (180.232.140.34.bc.googleusercontent.com. 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