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From: Peter Zijlstra <peterz@infradead.org>
To: Zhenyu Ye <yezhenyu2@huawei.com>
Cc: will@kernel.org, mark.rutland@arm.com, catalin.marinas@arm.com,
	aneesh.kumar@linux.ibm.com, akpm@linux-foundation.org,
	npiggin@gmail.com, arnd@arndb.de, rostedt@goodmis.org,
	maz@kernel.org, suzuki.poulose@arm.com, tglx@linutronix.de,
	yuzhao@google.com, Dave.Martin@arm.com, steven.price@arm.com,
	broonie@kernel.org, guohanjun@huawei.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
	linux-mm@kvack.org, arm@kernel.org, xiexiangyou@huawei.com,
	prime.zeng@hisilicon.com, zhangshaokun@hisilicon.com
Subject: Re: [RFC PATCH v4 0/6] arm64: tlb: add support for TTL feature
Date: Tue, 24 Mar 2020 16:01:55 +0100	[thread overview]
Message-ID: <20200324150155.GH20713@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20200324134534.1570-1-yezhenyu2@huawei.com>

On Tue, Mar 24, 2020 at 09:45:28PM +0800, Zhenyu Ye wrote:
> In order to reduce the cost of TLB invalidation, the ARMv8.4 TTL
> feature allows TLBs to be issued with a level allowing for quicker
> invalidation.  This series provide support for this feature. 
> 
> Patch 1 and Patch 2 was provided by Marc on his NV series[1] patches,
> which detect the TTL feature and add __tlbi_level interface.

I realy hate how it makes vma->vm_flags more important for tlbi.


  parent reply	other threads:[~2020-03-24 15:02 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-24 13:45 [RFC PATCH v4 0/6] arm64: tlb: add support for TTL feature Zhenyu Ye
2020-03-24 13:45 ` [RFC PATCH v4 1/6] arm64: Detect the ARMv8.4 " Zhenyu Ye
2020-03-24 13:45 ` [RFC PATCH v4 2/6] arm64: Add level-hinted TLB invalidation helper Zhenyu Ye
2020-03-24 13:45 ` [RFC PATCH v4 3/6] arm64: Add level-hinted TLB invalidation helper to tlbi_user Zhenyu Ye
2020-03-24 14:19   ` Marc Zyngier
2020-03-25  2:47     ` Zhenyu Ye
2020-03-24 13:45 ` [RFC PATCH v4 4/6] mm: Add page table level flags to vm_flags Zhenyu Ye
2020-03-24 18:44   ` Steven Rostedt
2020-03-25  2:10     ` yezhenyu (A)
2020-03-24 13:45 ` [RFC PATCH v4 5/6] arm64: tlb: Use translation level hint in vm_flags Zhenyu Ye
2020-03-24 14:45   ` Marc Zyngier
2020-03-25  8:00     ` Zhenyu Ye
2020-03-25 14:13       ` Marc Zyngier
2020-03-26  7:11         ` Zhenyu Ye
2020-03-24 13:45 ` [RFC PATCH v4 6/6] mm: Set VM_LEVEL flags in some tlb_flush functions Zhenyu Ye
2020-03-24 15:01 ` Peter Zijlstra [this message]
2020-03-25  4:49   ` Re: [RFC PATCH v4 0/6] arm64: tlb: add support for TTL feature Zhenyu Ye
2020-03-25 13:32     ` Peter Zijlstra
2020-03-26  7:15       ` Zhenyu Ye
2020-03-25 16:15 ` James Morse
2020-03-25 16:41   ` Peter Zijlstra
2020-03-26  6:45   ` Zhenyu Ye

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