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Date: Wed, 3 Sep 2025 17:25:02 +0100
From: Catalin Marinas <catalin.marinas@arm.com>
To: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: james.morse@arm.com, linux-cxl@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org,
	linux-arch@vger.kernel.org, linux-mm@kvack.org,
	Will Deacon <will@kernel.org>,
	Dan Williams <dan.j.williams@intel.com>,
	Davidlohr Bueso <dave@stgolabs.net>,
	"H . Peter Anvin" <hpa@zytor.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Yicong Yang <yangyicong@huawei.com>, linuxarm@huawei.com,
	Yushan Wang <wangyushan12@huawei.com>,
	Lorenzo Pieralisi <lpieralisi@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	x86@kernel.org, Andy Lutomirski <luto@kernel.org>
Subject: Re: [PATCH v3 3/8] lib: Support
 ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION
Message-ID: <aLhr3v4z_YIYaq9Z@arm.com>
References: <20250820102950.175065-1-Jonathan.Cameron@huawei.com>
 <20250820102950.175065-4-Jonathan.Cameron@huawei.com>
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In-Reply-To: <20250820102950.175065-4-Jonathan.Cameron@huawei.com>

On Wed, Aug 20, 2025 at 11:29:45AM +0100, Jonathan Cameron wrote:
> diff --git a/lib/Kconfig b/lib/Kconfig
> index c483951b624f..cd8e5844f9bb 100644
> --- a/lib/Kconfig
> +++ b/lib/Kconfig
> @@ -543,6 +543,9 @@ config MEMREGION
>  config ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION
>  	bool
>  
> +config GENERIC_CPU_CACHE_MAINTENANCE
> +	bool

Nit: you could select ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION here since
the interface is now provided by the generic implementation.

-- 
Catalin