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 8EB7AC5AD49 for ; Mon, 26 May 2025 10:47:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=dqxj/eepLmz0SworevJOv47dbEIhrDyW3LDmDGWSlk0=; b=3Yzhpz1upC5S4vnBqgrJ0/9MxZ qJwCyj1FNGbfl428N1Nukgl4U61MkoT8Fnm52ppMYQRIx4GNzUpkgfhRP7Vh2t2lNR5oA6tJ7Ixc3 xJes3aA7cXoFd/29UoQ3Uh7+m69HevISgIDFSyjG5rR8NZMqFscrMYqd0whMqJ2ZJz42RvNKEHI/z j+GJzwKu2iGYihKl6Yvuht3KOiIJMtcE6JUx4VZG8JH+7YEnOS+XyOvM5Ej5cOZBZf+HGcfAFfICu RDFgq5r4ZzF5d2sQUIdTq9Gtb5Q8Y2AwlADDLdOxa6i/a68Pdn1PA1q8VgZUNtnTLwQ9BUBEOIIPb DjhiJYIw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uJVMC-00000008e5e-1l1e; Mon, 26 May 2025 10:47:00 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uJVK2-00000008dp7-3EBf for linux-arm-kernel@lists.infradead.org; Mon, 26 May 2025 10:44:47 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D39991007; Mon, 26 May 2025 03:44:28 -0700 (PDT) Received: from J2N7QTR9R3 (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id DFD693F5A1; Mon, 26 May 2025 03:44:42 -0700 (PDT) Date: Mon, 26 May 2025 11:44:40 +0100 From: Mark Rutland To: Mark Brown Cc: Catalin Marinas , Will Deacon , Shuah Khan , Shuah Khan , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/3] kselftest/arm64: Fix test for streaming FPSIMD write in sve-ptrace Message-ID: References: <20250523-kselftest-arm64-ssve-fixups-v1-0-65069a263b21@kernel.org> <20250523-kselftest-arm64-ssve-fixups-v1-2-65069a263b21@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250523-kselftest-arm64-ssve-fixups-v1-2-65069a263b21@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250526_034446_861116_6BCC5C37 X-CRM114-Status: GOOD ( 18.09 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, May 23, 2025 at 04:27:13PM +0100, Mark Brown wrote: > Since f916dd32a943 ("arm64/fpsimd: ptrace: Mandate SVE payload for > streaming-mode state") we do not support writing FPSIMD payload data when > writing NT_ARM_SSVE but the sve-ptrace test has an explicit test for > this being supported which was not updated to reflect the new behaviour. > Fix the test to expect a failure when writing FPSIMD data to the > streaming mode register set. > > Signed-off-by: Mark Brown Acked-by: Mark Rutland Mark. > --- > tools/testing/selftests/arm64/fp/sve-ptrace.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/arm64/fp/sve-ptrace.c b/tools/testing/selftests/arm64/fp/sve-ptrace.c > index c499d5789dd5..7e259907805b 100644 > --- a/tools/testing/selftests/arm64/fp/sve-ptrace.c > +++ b/tools/testing/selftests/arm64/fp/sve-ptrace.c > @@ -301,8 +301,10 @@ static void ptrace_sve_fpsimd(pid_t child, const struct vec_type *type) > p[j] = j; > } > > + /* This should only succeed for SVE */ > ret = set_sve(child, type, sve); > - ksft_test_result(ret == 0, "%s FPSIMD set via SVE: %d\n", > + ksft_test_result((type->regset == NT_ARM_SVE) == (ret == 0), > + "%s FPSIMD set via SVE: %d\n", > type->name, ret); > if (ret) > goto out; > > -- > 2.39.5 >