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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 v6 4/7] arm64: Select GENERIC_CPU_CACHE_MAINTENANCE Date: Mon, 17 Nov 2025 10:47:57 +0000 Message-ID: <20251117104800.2041329-5-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-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 89B53A0014 X-Stat-Signature: ii6173hwwea7ppin58c9thhk4p15fj64 X-HE-Tag: 1763376610-281217 X-HE-Meta: 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 MZx8T72T QyAdGjr7uaMWzc6OEshoKpYtGjKZdc/6WkdDy4OxmcrPKfsdcBbbBzOsDp1K8biQA+/c/QKJse879fJjldTIXTvBmNa4kOWUv1sbJiGKjUF9CDQAysKLzIEeYckumNsDzmCbw7ghg3SeZQxQERecBdu30z6w7yKJxPUgxt0lyJaTsM1mVY/l0Cql4OUbmkonPAxrINtydglNLVOJ6Uiq+75c3h3QGvRy0RXX10uoczmWZ9d4Kh3Noo09+wb/s0dcKIdXsh1V9qm/S8mEpL6xzeu86dsFz8LGjI4ed 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 --- v6: No change. 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