linux-kernel - Re: [PATCH v2 01/13] arm64: mm: Re-implement the __tlbi

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Message-ID: <20260127111242.00007fcd@huawei.com>
Date: Tue, 27 Jan 2026 11:12:42 +0000
From: Jonathan Cameron <jonathan.cameron@...wei.com>
To: Ryan Roberts <ryan.roberts@....com>
CC: Will Deacon <will@...nel.org>, Ard Biesheuvel <ardb@...nel.org>, Catalin
 Marinas <catalin.marinas@....com>, Mark Rutland <mark.rutland@....com>, Linus
 Torvalds <torvalds@...ux-foundation.org>, Oliver Upton
	<oliver.upton@...ux.dev>, Marc Zyngier <maz@...nel.org>, "Dev Jain"
	<dev.jain@....com>, Linu Cherian <Linu.Cherian@....com>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 01/13] arm64: mm: Re-implement the __tlbi_level macro
 as a C function

On Mon, 19 Jan 2026 17:21:48 +0000
Ryan Roberts <ryan.roberts@....com> wrote:

> As part of efforts to reduce our reliance on complex preprocessor macros
> for TLB invalidation routines, convert the __tlbi_level macro to a C
> function for by-level TLB invalidation.
> 
> Each specific tlbi level op is implemented as a C function and the
> appropriate function pointer is passed to __tlbi_level(). Since
> everything is declared inline and is statically resolvable, the compiler
> will convert the indirect function call to a direct inline execution.
> 
> Suggested-by: Linus Torvalds <torvalds@...ux-foundation.org>
> Signed-off-by: Ryan Roberts <ryan.roberts@....com>

Does what it says on the tin.

Reviewed-by: Jonathan Cameron <jonathan.cameron@...wei.com>