From: Jonathan Cameron <jonathan.cameron@huawei.com>
To: Ryan Roberts <ryan.roberts@arm.com>
Cc: Will Deacon <will@kernel.org>, Ard Biesheuvel <ardb@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Oliver Upton <oliver.upton@linux.dev>,
Marc Zyngier <maz@kernel.org>, "Dev Jain" <dev.jain@arm.com>,
Linu Cherian <Linu.Cherian@arm.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 12/13] arm64: mm: Wrap flush_tlb_page() around __do_flush_tlb_range()
Date: Tue, 3 Mar 2026 09:59:13 +0000 [thread overview]
Message-ID: <20260303095913.0000684c@huawei.com> (raw)
In-Reply-To: <20260302135602.3716920-13-ryan.roberts@arm.com>
On Mon, 2 Mar 2026 13:55:59 +0000
Ryan Roberts <ryan.roberts@arm.com> wrote:
> Flushing a page from the tlb is just a special case of flushing a range.
> So let's rework flush_tlb_page() so that it simply wraps
> __do_flush_tlb_range(). While at it, let's also update the API to take
> the same flags that we use when flushing a range. This allows us to
> delete all the ugly "_nosync", "_local" and "_nonotify" variants.
>
> Thanks to constant folding, all of the complex looping and tlbi-by-range
> options get eliminated so that the generated code for flush_tlb_page()
> looks very similar to the previous version.
>
> Reviewed-by: Linu Cherian <linu.cherian@arm.com>
> Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
next prev parent reply other threads:[~2026-03-03 10:16 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-02 13:55 [PATCH v3 00/13] arm64: Refactor TLB invalidation API and implementation Ryan Roberts
2026-03-02 13:55 ` [PATCH v3 01/13] arm64: mm: Re-implement the __tlbi_level macro as a C function Ryan Roberts
2026-03-02 13:55 ` [PATCH v3 02/13] arm64: mm: Introduce a C wrapper for by-range TLB invalidation Ryan Roberts
2026-03-02 13:55 ` [PATCH v3 03/13] arm64: mm: Implicitly invalidate user ASID based on TLBI operation Ryan Roberts
2026-03-02 13:55 ` [PATCH v3 04/13] arm64: mm: Push __TLBI_VADDR() into __tlbi_level() Ryan Roberts
2026-03-02 13:55 ` [PATCH v3 05/13] arm64: mm: Inline __TLBI_VADDR_RANGE() into __tlbi_range() Ryan Roberts
2026-03-02 13:55 ` [PATCH v3 06/13] arm64: mm: Re-implement the __flush_tlb_range_op macro in C Ryan Roberts
2026-03-02 13:55 ` [PATCH v3 07/13] arm64: mm: Simplify __TLBI_RANGE_NUM() macro Ryan Roberts
2026-03-02 13:55 ` [PATCH v3 08/13] arm64: mm: Simplify __flush_tlb_range_limit_excess() Ryan Roberts
2026-03-02 13:55 ` [PATCH v3 09/13] arm64: mm: Refactor flush_tlb_page() to use __tlbi_level_asid() Ryan Roberts
2026-03-02 13:55 ` [PATCH v3 10/13] arm64: mm: Refactor __flush_tlb_range() to take flags Ryan Roberts
2026-03-02 13:55 ` [PATCH v3 11/13] arm64: mm: More flags for __flush_tlb_range() Ryan Roberts
2026-03-03 9:57 ` Jonathan Cameron
2026-03-03 13:54 ` Ryan Roberts
2026-03-03 17:34 ` Jonathan Cameron
2026-03-02 13:55 ` [PATCH v3 12/13] arm64: mm: Wrap flush_tlb_page() around __do_flush_tlb_range() Ryan Roberts
2026-03-03 9:59 ` Jonathan Cameron [this message]
2026-03-02 13:56 ` [PATCH v3 13/13] arm64: mm: Provide level hint for flush_tlb_page() Ryan Roberts
2026-03-02 14:42 ` Mark Rutland
2026-03-02 17:39 ` Ryan Roberts
2026-03-02 17:56 ` Mark Rutland
2026-03-13 19:43 ` [PATCH v3 00/13] arm64: Refactor TLB invalidation API and implementation Catalin Marinas
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