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From: Catalin Marinas <catalin.marinas@arm.com>
To: Chintan Pandya <cpandya@codeaurora.org>
Cc: will.deacon@arm.com, mark.rutland@arm.com, toshi.kani@hpe.com,
linux-arch@vger.kernel.org, arnd@arndb.de,
ard.biesheuvel@linaro.org, marc.zyngier@arm.com,
gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
kristina.martsenko@arm.com, takahiro.akashi@linaro.org,
james.morse@arm.com, tglx@linutronix.de,
akpm@linux-foundation.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v8 2/4] arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable
Date: Fri, 27 Apr 2018 11:29:01 +0100 [thread overview]
Message-ID: <20180427102900.4e63lo4eksk23vtn@armageddon.cambridge.arm.com> (raw)
In-Reply-To: <1522742446-5084-3-git-send-email-cpandya@codeaurora.org>
On Tue, Apr 03, 2018 at 01:30:44PM +0530, Chintan Pandya wrote:
> Add an interface to invalidate intermediate page tables
> from TLB for kernel.
>
> Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>
> ---
> arch/arm64/include/asm/tlbflush.h | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h
> index 9e82dd7..6a4816d 100644
> --- a/arch/arm64/include/asm/tlbflush.h
> +++ b/arch/arm64/include/asm/tlbflush.h
> @@ -209,6 +209,12 @@ static inline void __flush_tlb_pgtable(struct mm_struct *mm,
> dsb(ish);
> }
>
> +static inline void __flush_tlb_kernel_pgtable(unsigned long addr)
> +{
> + addr >>= 12;
> + __tlbi(vaae1is, addr);
> + dsb(ish);
> +}
> #endif
Please use __TLBI_VADDR here as it does some additional masking.
--
Catalin
next prev parent reply other threads:[~2018-04-27 10:29 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-03 8:00 [PATCH v8 0/4] Fix issues with huge mapping in ioremap for ARM64 Chintan Pandya
2018-04-03 8:00 ` [PATCH v8 1/4] ioremap: Update pgtable free interfaces with addr Chintan Pandya
2018-04-03 8:00 ` [PATCH v8 2/4] arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable Chintan Pandya
2018-04-27 10:29 ` Catalin Marinas [this message]
2018-04-27 12:30 ` Chintan Pandya
2018-04-03 8:00 ` [PATCH v8 3/4] arm64: Implement page table free interfaces Chintan Pandya
2018-04-03 8:00 ` [PATCH v8 4/4] Revert "arm64: Enforce BBM for huge IO/VMAP mappings" Chintan Pandya
2018-04-03 8:43 ` [PATCH v8 0/4] Fix issues with huge mapping in ioremap for ARM64 Marc Zyngier
2018-04-03 11:55 ` Chintan Pandya
2018-04-05 9:09 ` Chintan Pandya
2018-04-17 10:25 ` Chintan Pandya
2018-04-27 10:27 ` Catalin Marinas
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