From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 67DF223DEBB; Tue, 10 Dec 2024 16:06:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733846799; cv=none; b=lQdjBTgAc1Emc6yl7ZIkYH5FJHEcai55culflI5rjofkbxJpEpmSkZoAaa/ABw9ZozbDol+Rw2ZjjfXkvsRIZUupTgMm1ZSfP1SyhbvI0rjLmZy+Y2mNbTbsxOXXBq5uRnFZ6dgS5MWBIiG++IZFhWD6zpDwzxgodOIn/vW3JEs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733846799; c=relaxed/simple; bh=/EJLCV9Nbr8z/O96b+uztb1OOD40c2eM9YQphH3+pAU=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=RwN3ILYT01M8D5pG6LsHKeZvkAJGNbVSuNDLqMIBHezCxXWmko0XHOOXJJL0xdpPw/yrbEL8b5vXBj9OUWIlHKtESOIoE2/wIg46jWMB8OzDJWry94m+dXqykVIopunV5zVfhXasVJx3cy8rX8BbjaKKmc917YM1I+8RsNaKhWw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rRU3ftX+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="rRU3ftX+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 34108C4CEEA; Tue, 10 Dec 2024 16:06:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1733846798; bh=/EJLCV9Nbr8z/O96b+uztb1OOD40c2eM9YQphH3+pAU=; h=From:To:Cc:Subject:Date:From; b=rRU3ftX+twlXWaN+79xv665kO8GTDnwM12ZBEdFR6MfSY6RLbhue+timW9PEJLzVH beh+aeK1Pi58eY9T5GdG9lKtRCsf8OCIgBxKZ/z8u+iHn6wOjoUvVsSj1wTiX2P8AK Gg94zwt7HgC0V48enoGeycNlp0PCke484gZQy4qy9aufpc/byk2ZXYv3lpNFUnGj/q ak+wSlWuHE9MCMOJLnrHzuSUEQ3l7NFw2vXA2zmMOggcrNHirXuiVKVKuzvhna/wH/ VMx4h09I3WzjCYDp+3jyz1J7H4FNGENzbpjMxf6CtTPspUPDtg858zwaCd7tYj/fdB Awv+i++19po7g== From: Arnd Bergmann To: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, Arnd Bergmann , linux-mm@kvack.org, linux-rt-devel@lists.linux.dev, Ard Biesheuvel , Clark Williams , Jason Baron , Josh Poimboeuf , Linus Walleij , Mark Rutland , Matthew Wilcox , Peter Zijlstra , Russell King , Sebastian Andrzej Siewior , Steven Rostedt Subject: [PATCH 0/4] ARM: towards 32-bit preempt-rt support Date: Tue, 10 Dec 2024 17:05:52 +0100 Message-Id: <20241210160556.2341497-1-arnd@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Arnd Bergmann Linux-6.13 contains a few patches required as preparation for CONFIG_PREEMPT_RT, there are three more left, out of which I have reworked two slightly: - The jump-label patch from Thomas get a little more background information, and an improvement for non-SMP kernels - The HIGHPTE patch from Sebastian now has the reverse dependency, turning HIGHPTE off instead of PREEMPT_RT. As Matthew Wilcox noted, we can probably remove HIGHPTE support entirely, so I include two more patches for review here that do just that, with linux-mm added to Cc. The final RT patch for the entry path is not included here as I'm waiting on some work from Linus Walleij. Hopefully it will no longer be needed after then next version of his generic entry series, see https://lore.kernel.org/lkml/20241029-arm-generic-entry-v2-0-573519abef38@linaro.org/ Arnd Arnd Bergmann (2): ARM: drop CONFIG_HIGHPTE support mm: drop HIGHPTE support altogether Sebastian Andrzej Siewior (1): ARM: Disable HIGHPTE on PREEMPT_RT kernels Thomas Gleixner (1): ARM: Disable jump-label on PREEMPT_RT arch/arm/Kconfig | 13 +------------ arch/arm/include/asm/pgalloc.h | 8 +------- include/linux/hugetlb.h | 5 +---- include/linux/mm.h | 1 - include/linux/pgtable.h | 9 --------- 5 files changed, 3 insertions(+), 33 deletions(-) -- 2.39.5 Cc: linux-mm@kvack.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rt-devel@lists.linux.dev Cc: Ard Biesheuvel Cc: Clark Williams Cc: Jason Baron Cc: Josh Poimboeuf Cc: Linus Walleij Cc: Mark Rutland Cc: Matthew Wilcox Cc: Peter Zijlstra Cc: Russell King Cc: Sebastian Andrzej Siewior Cc: Steven Rostedt