From patchwork Mon Aug 29 15:44:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 12958053 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37731ECAAD5 for ; Mon, 29 Aug 2022 15:45:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229798AbiH2PpT (ORCPT ); Mon, 29 Aug 2022 11:45:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45788 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229566AbiH2PpS (ORCPT ); Mon, 29 Aug 2022 11:45:18 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D7C12B199 for ; Mon, 29 Aug 2022 08:45:17 -0700 (PDT) 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 ams.source.kernel.org (Postfix) with ESMTPS id 9C6DCB81106 for ; Mon, 29 Aug 2022 15:45:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 379DBC433C1; Mon, 29 Aug 2022 15:45:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1661787915; bh=fBxL1nzlY8qeFhnm7QsFfEvtJ4Mb/hUggbozRGaqApM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CQidzeZH43tP5nLkoGlHQDK41L+EJc8IM4s+F8lt4yy/IlXrpzLrBidJ8L/ii9JWC 1NlpPx2tglLbE+DmNb8G4ylUIo6zT7U5ExvfNcKM85wvlFGD+dDxCo+2SDNfokJlpK ap8/Pe9mzkTmr298g49bmurt74EB6XxeaPqrivdn/uO2GQJGcAVHPwSDuJ4pL5Qqoy 4BMuCsTHLXid/3Ot2VdJyvgUX9Z4LN6qEOQPD6m7RRZf9YFvkJCO1zyomYw2KIycr2 AS7oFjqo7Sn720pMTGDTj8H+Y5sCwTc6KwuzK2yKTsWMU06xQK3ccmKHhbV6JU3VwN yEzVebUcB2bag== From: Mark Brown To: Catalin Marinas , Will Deacon , Shuah Khan , Shuah Khan Cc: linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, Mark Brown Subject: [PATCH v2 1/4] kselftest/arm64: Always encourage preemption for za-test Date: Mon, 29 Aug 2022 16:44:49 +0100 Message-Id: <20220829154452.824870-2-broonie@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220829154452.824870-1-broonie@kernel.org> References: <20220829154452.824870-1-broonie@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=916; i=broonie@kernel.org; h=from:subject; bh=fBxL1nzlY8qeFhnm7QsFfEvtJ4Mb/hUggbozRGaqApM=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBjDN7x88WNfyOa5FHhYX6WLftaPWxS0aXpEVmXAFKj 1ozMyeaJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCYwze8QAKCRAk1otyXVSH0IKbB/ 9J2Ke+yDKi+kgQur1HTAKNtlZa0690GRTraoZCG0GE0DCWUShtOYQ9Fiz7Wfzg+1fA6kEgLiSZfva3 J8cM8Ah5v6EkG8CfLZDsvfJ6YV5p1+TxvQFQDtTxWtYUW+F8oP9ypPdpM7klRcj1W5eSgPLuFW3IiT 3mDHF+1atEtD7xCNI7jSabQI78IWiINjQ8IVAZ74wIVAM2A6eKROGHiKyskaos15HzTRDCTUqP0QNA A5jU00rPiz5dJkr8F+kaUr1IkHK/Mu+gxJi0elCbp9hLQBwvpax0yFcOCe50FfSNKR4MYhgIyEYbbQ FPTkuXXSpguSRo0Cn+CgklhdkzAlDZ X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Since we now have an explicit test for the syscall ABI there is no need for za-test to cover getpid() so just unconditionally do sched_yield() like we do in fpsimd-test. Signed-off-by: Mark Brown --- tools/testing/selftests/arm64/fp/za-test.S | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/tools/testing/selftests/arm64/fp/za-test.S b/tools/testing/selftests/arm64/fp/za-test.S index 9ab6f9cd9623..2dd358f9edf2 100644 --- a/tools/testing/selftests/arm64/fp/za-test.S +++ b/tools/testing/selftests/arm64/fp/za-test.S @@ -287,12 +287,7 @@ _start: subs x21, x21, #1 b.ne 0b - and x8, x22, #127 // Every 128 interations... - cbz x8, 0f - mov x8, #__NR_getpid // (otherwise minimal syscall) - b 1f -0: - mov x8, #__NR_sched_yield // ...encourage preemption + mov x8, #__NR_sched_yield // encourage preemption 1: svc #0