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h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=vm2kSx94I5qkogPVURWrrhH7aXHNfLmUGrxjiD+wnWosJeMfjbh5y2H7ia0qhyyQG ugqsgzAcfZSIg2Dw6IILnixHWf73Cv9uOSh+8NxrMK4tlJxUtvIMoprfHWx+JwX8Fr iXiG6LVFDVIPWd/sjZBPtJitP/i+ldzWRllI02oY= Message-ID: Date: Mon, 1 Jun 2026 11:06:22 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC V2 13/14] arm64/mm: Add an abstraction level for tlbi_op To: Linu Cherian , Ryan Roberts Cc: linux-arm-kernel@lists.infradead.org, Catalin Marinas , Will Deacon , Mark Rutland , Lorenzo Stoakes , Andrew Morton , David Hildenbrand , Mike Rapoport , Usama Arif , linux-kernel@vger.kernel.org, linux-mm@kvack.org References: <20260513044547.4128549-1-anshuman.khandual@arm.com> <20260513044547.4128549-14-anshuman.khandual@arm.com> <37917d56-ae26-4789-ac4c-15f8ee12398b@arm.com> Content-Language: en-US From: Anshuman Khandual In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam11 X-Stat-Signature: qzhgny7geu3x9rnoj5o6eat3sosdze7o X-Rspamd-Queue-Id: 3B690180003 X-Rspam-User: X-HE-Tag: 1780292190-558942 X-HE-Meta: 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 5JYGNwaj neqjZ8BRjA6cnoQ6GC8uSX5SdBXNZKplMP48MlEs3VXh96mF3lTDSp75e5S/xfnI073ZWt2KCCKpKG5yRwiku4C7hlcxMK1apPG8xOQSAe/yAL6j/w1f4iotu3OjTsBWZISBzqe7Q/FDFxb2IjtlH84lhk28gQPF25dpjvUi22tbolYzHJKKjCMlcHp3sFIqqqofu8wMHluWoXZDf0XTVhzLyLgB9Z2n7vkHQHd9IZ9ZDWxMAwNk4pj2VfUKbZC31FK0qLOQAZvaebq3Ii9/h6FKYZgLJkPr97y96T/OwvZK0DDHSSh/6Gf6gT3U3oPvNJUhu+qsQjLXOtca0RgiwNYSDhg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 29/05/26 9:32 AM, Linu Cherian wrote: > Hi Ryan, > > On Wed, May 27, 2026 at 03:50:10PM +0100, Ryan Roberts wrote: >> On 13/05/2026 05:45, Anshuman Khandual wrote: >>> From: Linu Cherian >>> >>> With FEAT_D128, a new instruction aka TLBIP is being introduced for the TLB >>> range operations which has an argument size of 128 bit. >> >> nit: TLB range operations -> TLBI-by-range operations ? > > Ack. > >> >>> >>> Add an abstraction level to void (*tlbi_op)(u64 arg) helpers to support the >>> D128 variations when applicable. >>> >>> No functional changes are introduced with this patch. >>> >>> Signed-off-by: Linu Cherian >>> Signed-off-by: Anshuman Khandual >>> --- >>> arch/arm64/include/asm/tlbflush.h | 70 ++++++++++++++++--------------- >>> 1 file changed, 37 insertions(+), 33 deletions(-) >>> >>> diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h >>> index c0bf5b398041..361d74ef8016 100644 >>> --- a/arch/arm64/include/asm/tlbflush.h >>> +++ b/arch/arm64/include/asm/tlbflush.h >>> @@ -162,49 +162,53 @@ static inline void sme_dvmsync_batch(struct arch_tlbflush_unmap_batch *batch) >>> >>> #define TLBI_TTL_UNKNOWN INT_MAX >>> >>> -typedef void (*tlbi_op)(u64 arg); >>> +typedef u64 tlbi_args_t; >> >> nit: tlbi_args_t -> tlbi_arg_t ? > > Ack. Accommodated both the changes.