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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B797CC433F5 for ; Mon, 20 Dec 2021 14:01:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233298AbhLTOBw (ORCPT ); Mon, 20 Dec 2021 09:01:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50984 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231355AbhLTOBv (ORCPT ); Mon, 20 Dec 2021 09:01:51 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5238AC061574 for ; Mon, 20 Dec 2021 06:01:51 -0800 (PST) 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 DA2E761155 for ; Mon, 20 Dec 2021 14:01:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D6F6AC36AE8; Mon, 20 Dec 2021 14:01:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1640008910; bh=AkghpouVEQBWq+J5J3/TJlgBCWrju8lEwOVB020GmJw=; h=From:To:Cc:Subject:Date:From; b=nwQMEza4O4dXlSzxdu1qqviTQwoVG86HJibZr1dlzn1FUVL894BSAiQNDUfReap26 CxMHJaQ4fL6snInAEoeARgbKHd0LBy6zhlf3UQoKCMHOiSGZpF0bGuT5QXqJ71xcNM 0LNTHYfRtVc5OdPfWWgmT62BNNKKMQq7ZRTQX9GHSo2HGXdC8dOi0T9nCExLN/9VcV aLq98j+DDldtXLY7utOcm/TBHMOwvzPIMCWPi0n1ZSZXqcf9fUYdmlAPyDMM/FSwWE n+Hleqa7ubbOnImzEPIP84S1TiY/UQngVNT4qirLzyVitdtEdzdlgEJHlzThNx9cML 9BZ3spKTxLxsQ== From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , Steven Rostedt , Peter Zijlstra , Ard Biesheuvel , Kees Cook , James Morse , David Laight , Sami Tolvanen , Josh Poimboeuf , Andy Lutomirski , Quentin Perret , Catalin Marinas , Will Deacon , Mark Rutland Subject: [GIT PULL] arm64: Support dynamic preemption v3 Date: Mon, 20 Dec 2021 15:01:37 +0100 Message-Id: <20211220140142.922323-1-frederic@kernel.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, I haven't seen much comments on the static key based version from Mark so I don't know which direction we'll eventually take. I still hope we can focus on a unified static call based implementation, considering there are other users waiting on arm64 static calls. So here is a rebase against the latest tip:sched/core and arm64 static call proposal. git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git preempt/arm-v4 HEAD: 6fc1c7e3d83c4e06b019b041894d9bb25f37ac6c Thanks, Frederic --- Frederic Weisbecker (3): sched/preempt: Prepare for supporting !CONFIG_GENERIC_ENTRY dynamic preemption arm64: Implement IRQ exit preemption static call for dynamic preemption arm64: Implement HAVE_PREEMPT_DYNAMIC Ard Biesheuvel (2): static_call: Use non-function types to refer to the trampolines arm64: implement support for static call trampolines arch/Kconfig | 1 - arch/arm64/Kconfig | 3 ++ arch/arm64/include/asm/preempt.h | 23 ++++++++++- arch/arm64/include/asm/static_call.h | 40 +++++++++++++++++++ arch/arm64/kernel/entry-common.c | 15 +++++-- arch/arm64/kernel/patching.c | 77 ++++++++++++++++++++++++++++++++++-- arch/arm64/kernel/vmlinux.lds.S | 1 + include/linux/entry-common.h | 3 +- include/linux/static_call.h | 4 +- include/linux/static_call_types.h | 11 ++++-- kernel/sched/core.c | 6 ++- 11 files changed, 168 insertions(+), 16 deletions(-)