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From: Zhenyu Ye <yezhenyu2@huawei.com>
To: <will@kernel.org>, <mark.rutland@arm.com>,
	<catalin.marinas@arm.com>, <aneesh.kumar@linux.ibm.com>,
	<akpm@linux-foundation.org>, <npiggin@gmail.com>,
	<peterz@infradead.org>, <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>
Cc: linux-arch@vger.kernel.org, yezhenyu2@huawei.com,
	linux-kernel@vger.kernel.org, xiexiangyou@huawei.com,
	zhangshaokun@hisilicon.com, linux-mm@kvack.org, arm@kernel.org,
	prime.zeng@hisilicon.com, linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH v4 0/6] arm64: tlb: add support for TTL feature
Date: Tue, 24 Mar 2020 21:45:28 +0800	[thread overview]
Message-ID: <20200324134534.1570-1-yezhenyu2@huawei.com> (raw)

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.

See patches for details, Thanks.

[1] https://lore.kernel.org/linux-arm-kernel/20200211174938.27809-1-maz@kernel.org/


ChangeList:
v1:
add support for TTL feature in arm64.

v2:
build the patch on Marc's NV series[1].

v3:
use vma->vm_flags to replace mm->context.flags.

v4:
add Marc's patches into my series.


Marc Zyngier (2):
  arm64: Detect the ARMv8.4 TTL feature
  arm64: Add level-hinted TLB invalidation helper

Zhenyu Ye (4):
  arm64: Add level-hinted TLB invalidation helper to tlbi_user
  mm: Add page table level flags to vm_flags
  arm64: tlb: Use translation level hint in vm_flags
  mm: Set VM_LEVEL flags in some tlb_flush functions

 arch/arm64/include/asm/cpucaps.h  |  3 +-
 arch/arm64/include/asm/mmu.h      |  2 +
 arch/arm64/include/asm/sysreg.h   |  1 +
 arch/arm64/include/asm/tlb.h      | 12 +++++
 arch/arm64/include/asm/tlbflush.h | 74 ++++++++++++++++++++++++++++---
 arch/arm64/kernel/cpufeature.c    | 11 +++++
 arch/arm64/mm/hugetlbpage.c       |  4 +-
 arch/arm64/mm/mmu.c               | 14 ++++++
 include/asm-generic/pgtable.h     | 16 ++++++-
 include/linux/mm.h                | 10 +++++
 include/trace/events/mmflags.h    | 15 ++++++-
 mm/huge_memory.c                  |  8 +++-
 12 files changed, 157 insertions(+), 13 deletions(-)

-- 
2.19.1



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             reply	other threads:[~2020-03-24 13:47 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-24 13:45 Zhenyu Ye [this message]
2020-03-24 13:45 ` [RFC PATCH v4 1/6] arm64: Detect the ARMv8.4 TTL feature 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 ` [RFC PATCH v4 0/6] arm64: tlb: add support for TTL feature Peter Zijlstra
2020-03-25  4:49   ` 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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