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 9B3C0C433F5 for ; Wed, 23 Feb 2022 15:44:20 +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=2Jvl4cnGwOgHii7XBl3DC3kksMkG3C1bOaL0I2JOuWM=; b=xHfliX9wP3lAzD 9t2JOblgps+mLwJPMiRPGsc3mA9NibKaF0kLuR3VhUZmK/veyyd66/l1V/xAUf5UEZgHLuqsdLetc uQ9Xb0zGdpcyV1j0sttSquR3EXHGbmoJygUcq1In92eflvAY4PW+gT6cZU2tvZGPk8QphXuvTRtbc 5tZG2/rVw2MDDT8cjkO+PcR17vs68Bv0f1GIZVmVdNmg1rWmtm17nX6MHjyfthJ68I9AB3aCkxGxA 6V1r7hyBzyt5GNOj8lydKoBJUc16VGFGcJ6Df44i2LRBN7D8zENdmdm2ow511u5046Vp5FCyN1gNU 0dgH1TeDuXhmjmXnDSLw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nMtnL-00F6Ce-39; Wed, 23 Feb 2022 15:43:11 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nMtnG-00F6Ar-NB for linux-arm-kernel@lists.infradead.org; Wed, 23 Feb 2022 15:43:08 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 44B24618A8; Wed, 23 Feb 2022 15:43:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A6418C340E7; Wed, 23 Feb 2022 15:43:02 +0000 (UTC) Date: Wed, 23 Feb 2022 15:42:58 +0000 From: Catalin Marinas To: Mark Brown Cc: Will Deacon , Marc Zyngier , Shuah Khan , Shuah Khan , Alan Hayward , Luis Machado , Salil Akerkar , Basant Kumar Dwivedi , Szabolcs Nagy , James Morse , Alexandru Elisei , Suzuki K Poulose , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, kvmarm@lists.cs.columbia.edu Subject: Re: [PATCH v11 32/40] kselftest/arm64: Add tests for TPIDR2 Message-ID: References: <20220207152109.197566-1-broonie@kernel.org> <20220207152109.197566-33-broonie@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220207152109.197566-33-broonie@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220223_074306_815953_EC00D7C9 X-CRM114-Status: GOOD ( 18.32 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Feb 07, 2022 at 03:21:01PM +0000, Mark Brown wrote: > The Scalable Matrix Extension adds a new system register TPIDR2 intended to > be used by libc for its own thread specific use, add some kselftests which > exercise the ABI for it. > > Since this test should with some adjustment work for TPIDR and any other > similar registers added in future add tests for it in a separate > directory rather than placing it with the other floating point tests, > nothing existing looked suitable so I created a new test directory > called "abi". > > Since this feature is intended to be used by libc the test is built as > freestanding code using nolibc so we don't end up with the test program > and libc both trying to manage the register simultaneously and > distrupting each other. As a result of being written using nolibc rather > than using hwcaps to identify if SME is available in the system we check > for the default SME vector length configuration in proc, adding hwcap > support to nolibc seems like disproportionate effort and didn't feel > entirely idiomatic for what nolibc is trying to do. > > Signed-off-by: Mark Brown Acked-by: Catalin Marinas _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel