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From: ddaney.cavm@gmail.com (David Daney)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/3] arm64, mm: Use IPIs for TLB invalidation.
Date: Sat, 11 Jul 2015 13:25:20 -0700	[thread overview]
Message-ID: <1436646323-10527-1-git-send-email-ddaney.cavm@gmail.com> (raw)

From: David Daney <david.daney@cavium.com>

This patch set (or something like it) is needed for the Cavium
ThunderX, but its performance improvements may make it compelling on
its own merits.

Summery: On ThunerX we cannot use broadcast TLB invalidation, so we
use IPIs where necessary.  The funny thing is that it also happens to
make workloads similar to kernel builds much faster.

David Daney (3):
  arm64, mm: Add flush_tlb_all_local() function.
  arm64, mm: Use flush_tlb_all_local() in flush_context().
  arm64, mm: Use IPIs for TLB invalidation.

 arch/arm64/include/asm/tlbflush.h | 64 ++++++++-------------------------------
 arch/arm64/mm/context.c           |  2 +-
 arch/arm64/mm/flush.c             | 46 ++++++++++++++++++++++++++++
 3 files changed, 59 insertions(+), 53 deletions(-)

-- 
1.9.1

             reply	other threads:[~2015-07-11 20:25 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-11 20:25 David Daney [this message]
2015-07-11 20:25 ` [PATCH 1/3] arm64, mm: Add flush_tlb_all_local() function David Daney
2015-07-11 20:25 ` [PATCH 2/3] arm64, mm: Use flush_tlb_all_local() in flush_context() David Daney
2015-07-11 20:25 ` [PATCH 3/3] arm64, mm: Use IPIs for TLB invalidation David Daney
2015-07-11 22:06   ` Sergei Shtylyov
2015-07-12 21:58   ` Catalin Marinas
2015-07-13 18:17   ` Will Deacon
2015-07-13 18:58     ` David Daney
2015-07-14 11:13       ` Catalin Marinas
2015-07-14 11:40         ` Will Deacon
2015-07-14 13:09           ` Catalin Marinas

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