linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
* [RFC PATCH v4 0/6] arm64: tlb: add support for TTL feature
@ 2020-03-24 13:45 Zhenyu Ye
  2020-03-24 13:45 ` [RFC PATCH v4 1/6] arm64: Detect the ARMv8.4 " Zhenyu Ye
                   ` (7 more replies)
  0 siblings, 8 replies; 22+ messages in thread
From: Zhenyu Ye @ 2020-03-24 13:45 UTC (permalink / raw)
  To: will, mark.rutland, catalin.marinas, aneesh.kumar, akpm, npiggin,
	peterz, arnd, rostedt, maz, suzuki.poulose, tglx, yuzhao,
	Dave.Martin, steven.price, broonie, guohanjun
  Cc: linux-arch, yezhenyu2, linux-kernel, xiexiangyou, zhangshaokun,
	linux-mm, arm, prime.zeng, linux-arm-kernel

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



_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 22+ messages in thread

end of thread, other threads:[~2020-03-26  7:15 UTC | newest]

Thread overview: 22+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
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 ` [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

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).