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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 v5 4/6] arm64: Select GENERIC_CPU_CACHE_MAINTENANCE Date: Fri, 31 Oct 2025 11:17:07 +0000 Message-ID: <20251031111709.1783347-5-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20251031111709.1783347-1-Jonathan.Cameron@huawei.com> References: <20251031111709.1783347-1-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: lhrpeml500010.china.huawei.com (7.191.174.240) To dubpeml100005.china.huawei.com (7.214.146.113) X-Rspamd-Queue-Id: E174520016 X-Rspamd-Server: rspam11 X-Rspam-User: X-Stat-Signature: y8wagsq9auieirkux1a641n13ma46m1a X-HE-Tag: 1761909569-717078 X-HE-Meta: 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 rN1VNPMg 6cCtgoHv3iDqjs48Sr68b6qiTBU0rzBUbJpQbtwG/ZOIDBkQcabBBLF2HRUy+qri1E68gDQMcye3jy/5+AILjfNtPdiDm1SZwqAlaOetD0MmiVElFUtltGm/7EgInKYSvltyLWR850GwJtvtCaR1vGJojp2oFbZL5OdrBJTu+kRzmMfi6lVF4/AAlydn06tBADJG9ToLPx+IuCTXmvgBk3/mDbbvdvlcmKZgoHfrkk8ubyOQDN0pwhzDvfGhfpmS9OISahwPazAihGj/vx5X5dC3H91UGXltC09ET 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 generic CPU cache maintenance framework provides a way to register drivers for devices implementing the underlying support for cpu_cache_has_invalidate_memregion(). Enable it for arm64 by selecting GENERIC_CPU_CACHE_MAINTENANCE which provides the implementation for, and in turn selects, ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION. Signed-off-by: Jonathan Cameron Acked-by: Catalin Marinas --- v5: No change. v4: Drop select ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION as that is now selected by GENERIC_CPU_CACHE_MAINTENANCE (Catalin Marinas) Picked up tag from Catalin. (thanks!) --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 6663ffd23f25..893e0af0bc51 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -149,6 +149,7 @@ config ARM64 select GENERIC_ARCH_TOPOLOGY select GENERIC_CLOCKEVENTS_BROADCAST select GENERIC_CPU_AUTOPROBE + select GENERIC_CPU_CACHE_MAINTENANCE select GENERIC_CPU_DEVICES select GENERIC_CPU_VULNERABILITIES select GENERIC_EARLY_IOREMAP -- 2.48.1