From: Catalin Marinas <catalin.marinas@arm•com>
To: Jia He <justin.he@arm•com>
Cc: "Mark Rutland" <mark.rutland@arm•com>,
"Kaly Xin" <Kaly.Xin@arm•com>,
"Ralph Campbell" <rcampbell@nvidia•com>,
"Andrew Morton" <akpm@linux-foundation•org>,
"Suzuki Poulose" <Suzuki.Poulose@arm•com>,
"Marc Zyngier" <maz@kernel•org>,
"Anshuman Khandual" <anshuman.khandual@arm•com>,
linux-kernel@vger•kernel.org,
"Matthew Wilcox" <willy@infradead•org>,
linux-mm@kvack•org, "Jérôme Glisse" <jglisse@redhat•com>,
"James Morse" <james.morse@arm•com>,
linux-arm-kernel@lists•infradead.org,
"Punit Agrawal" <punitagrawal@gmail•com>,
hejianet@gmail•com, "Thomas Gleixner" <tglx@linutronix•de>,
nd@arm•com, "Will Deacon" <will@kernel•org>,
"Alex Van Brunt" <avanbrunt@nvidia•com>,
"Kirill A. Shutemov" <kirill.shutemov@linux•intel.com>,
"Robin Murphy" <robin.murphy@arm•com>
Subject: Re: [PATCH v9 1/3] arm64: cpufeature: introduce helper cpu_has_hw_af()
Date: Wed, 25 Sep 2019 15:38:20 +0100 [thread overview]
Message-ID: <20190925143820.GF7042@arrakis.emea.arm.com> (raw)
In-Reply-To: <20190925025922.176362-2-justin.he@arm.com>
On Wed, Sep 25, 2019 at 10:59:20AM +0800, Jia He wrote:
> We unconditionally set the HW_AFDBM capability and only enable it on
> CPUs which really have the feature. But sometimes we need to know
> whether this cpu has the capability of HW AF. So decouple AF from
> DBM by new helper cpu_has_hw_af().
>
> Signed-off-by: Jia He <justin.he@arm•com>
> Suggested-by: Suzuki Poulose <Suzuki.Poulose@arm•com>
> Reported-by: kbuild test robot <lkp@intel•com>
Which bug did the kbuild robot actually report? I'd drop this line.
--
Catalin
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next prev parent reply other threads:[~2019-09-25 14:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-25 2:59 [PATCH v9 0/3] fix double page fault on arm64 Jia He
2019-09-25 2:59 ` [PATCH v9 1/3] arm64: cpufeature: introduce helper cpu_has_hw_af() Jia He
2019-09-25 14:38 ` Catalin Marinas [this message]
2019-09-26 9:23 ` Justin He (Arm Technology China)
2019-09-25 2:59 ` [PATCH v9 2/3] arm64: mm: implement arch_faults_on_old_pte() on arm64 Jia He
2019-09-25 2:59 ` [PATCH v9 3/3] mm: fix double page fault on arm64 if PTE_AF is cleared Jia He
2019-09-25 3:03 ` Justin He (Arm Technology China)
2019-09-25 14:42 ` Catalin Marinas
2019-09-26 10:25 ` Kirill A. Shutemov
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