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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5F3A3CE8D6B for ; Mon, 17 Nov 2025 10:51:16 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id BFCEE8E0028; Mon, 17 Nov 2025 05:51:15 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id BD46F8E0002; Mon, 17 Nov 2025 05:51:15 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AEA6E8E0028; Mon, 17 Nov 2025 05:51:15 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 9CB398E0002 for ; Mon, 17 Nov 2025 05:51:15 -0500 (EST) Received: from smtpin28.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 6A25D12F7AC for ; Mon, 17 Nov 2025 10:51:15 +0000 (UTC) X-FDA: 84119782110.28.A0ED8C0 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by imf24.hostedemail.com (Postfix) with ESMTP id 9675C18000E for ; Mon, 17 Nov 2025 10:51:13 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf24.hostedemail.com: domain of jonathan.cameron@huawei.com designates 185.176.79.56 as permitted sender) smtp.mailfrom=jonathan.cameron@huawei.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1763376673; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=OEtX665z2JlcdgBBbipKuUMwN9cWh1oLTf7JBBzxWic=; b=IoT1UJIFr/IfkENS5hltdmFc5x3HKhBEL+LTMXHOM24dXKDgYei+n795XID/Y5yJNb0pTR Mrjxkb8TQ7rrBy6WdFAsPpe3VZ0toOPriX7mtK0V+UcJoOO2sUrwjIR2aaJMstQ9wRerEf JXULGaJi9W8+bqh2g8mYRGdjmJrQAo4= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1763376673; a=rsa-sha256; cv=none; b=3ENk/OnIdDYFJCnF5oTEdNTZ/8uFn9NpAuMfeSYg5hA5mUxcCqAs9369BXOz6rNb3T+873 /WRSK3xoaCPamhLTm2waODxhUy9/Ie5nVZ0BhBt9KB665uQSQgY6kmoB2hG033U7PMDEtR gp3XsFUjRJgIkzfy0frqpIZI6XCOZ0M= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf24.hostedemail.com: domain of jonathan.cameron@huawei.com designates 185.176.79.56 as permitted sender) smtp.mailfrom=jonathan.cameron@huawei.com Received: from mail.maildlp.com (unknown [172.18.186.31]) by frasgout.his.huawei.com (SkyGuard) with ESMTPS id 4d94K32LZZzJ46dd; Mon, 17 Nov 2025 18:50:31 +0800 (CST) Received: from dubpeml100005.china.huawei.com (unknown [7.214.146.113]) by mail.maildlp.com (Postfix) with ESMTPS id C455E14011A; Mon, 17 Nov 2025 18:51:11 +0800 (CST) Received: from SecurePC-101-06.huawei.com (10.122.19.247) by dubpeml100005.china.huawei.com (7.214.146.113) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.36; Mon, 17 Nov 2025 10:51:10 +0000 From: Jonathan Cameron To: Conor Dooley , Catalin Marinas , , , , , Dan Williams , "H . Peter Anvin" , Peter Zijlstra , Andrew Morton , Arnd Bergmann , Drew Fustini , Linus Walleij , Alexandre Belloni , Krzysztof Kozlowski CC: , Will Deacon , Davidlohr Bueso , , Yushan Wang , Lorenzo Pieralisi , Mark Rutland , Dave Hansen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , , Andy Lutomirski , Dave Jiang Subject: [PATCH v6 6/7] cache: Make top level Kconfig menu a boolean dependent on RISCV Date: Mon, 17 Nov 2025 10:47:59 +0000 Message-ID: <20251117104800.2041329-7-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20251117104800.2041329-1-Jonathan.Cameron@huawei.com> References: <20251117104800.2041329-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.122.19.247] X-ClientProxiedBy: lhrpeml100012.china.huawei.com (7.191.174.184) To dubpeml100005.china.huawei.com (7.214.146.113) X-Stat-Signature: exjqd8f6kuxedokr89gk5hcpa738mpg3 X-Rspam-User: X-Rspamd-Queue-Id: 9675C18000E X-Rspamd-Server: rspam10 X-HE-Tag: 1763376673-95884 X-HE-Meta: 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: The next patch will add a new type of cache maintenance driver responsible for flushing deeper than is necessary for non coherent DMA (current use case of drivers/cache drivers), as needed when performing operations such as memory hotplug and security unlocking of persistent memory. The two types of operation are similar enough to share a drivers/cache directory and MAINTAINERS but are otherwise currently unrelated. To avoid confusion have two separate menus. Each has dependencies that are implemented by making them boolean symbols, here CACHEMAINT_FOR_DMA which is dependent on RISCV as all driver are currently for platforms of that architecture. Set new symbol default to y to avoid breaking existing configs. This has no affect on actual code built, just visibility of the menu. Suggested-by: Arnd Bergmann Signed-off-by: Jonathan Cameron --- v6: New patch as suggested by Arnd. --- drivers/cache/Kconfig | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/cache/Kconfig b/drivers/cache/Kconfig index db51386c663a..59a79df4c0ce 100644 --- a/drivers/cache/Kconfig +++ b/drivers/cache/Kconfig @@ -1,9 +1,17 @@ # SPDX-License-Identifier: GPL-2.0 -menu "Cache Drivers" + +menuconfig CACHEMAINT_FOR_DMA + bool "Cache management for noncoherent DMA" + depends on RISCV + default y + help + These drivers implement support for noncoherent DMA master devices + on platforms that lack the standard CPU interfaces for this. + +if CACHEMAINT_FOR_DMA config AX45MP_L2_CACHE bool "Andes Technology AX45MP L2 Cache controller" - depends on RISCV select RISCV_NONSTANDARD_CACHE_OPS help Support for the L2 cache controller on Andes Technology AX45MP platforms. @@ -16,7 +24,6 @@ config SIFIVE_CCACHE config STARFIVE_STARLINK_CACHE bool "StarFive StarLink Cache controller" - depends on RISCV depends on ARCH_STARFIVE depends on 64BIT select RISCV_DMA_NONCOHERENT @@ -24,4 +31,4 @@ config STARFIVE_STARLINK_CACHE help Support for the StarLink cache controller IP from StarFive. -endmenu +endif #CACHEMAINT_FOR_DMA -- 2.48.1