From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH v2 0/2] Add POWER9 DD2.0 feature, remove idle workarounds in DD2.1
Date: Thu, 2 Nov 2017 12:55:33 +1100 [thread overview]
Message-ID: <20171102015535.30843-1-npiggin@gmail.com> (raw)
Chnages since v1:
- Change unnecessarily 'inverted else' conditions for the DD2.0
feature workarounds, noted by mpe.
- One of the cases was incorrect, removing the code in for DD2.0 and
leaving it in for 2.1. Performance is further slightly improved with
this case fixed.
Nicholas Piggin (2):
powerpc: add POWER9_DD20 feature
powerpc/64s: idle skip POWER9 DD1 and DD2.0 specific workarounds on
DD2.1
arch/powerpc/include/asm/cputable.h | 5 ++++-
arch/powerpc/kernel/cputable.c | 20 ++++++++++++++++++++
arch/powerpc/kernel/dt_cpu_ftrs.c | 2 ++
arch/powerpc/kernel/idle_book3s.S | 31 ++++++++++++++++++++-----------
4 files changed, 46 insertions(+), 12 deletions(-)
--
2.15.0
next reply other threads:[~2017-11-02 1:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-02 1:55 Nicholas Piggin [this message]
2017-11-02 1:55 ` [PATCH v2 1/2] powerpc: add POWER9_DD20 feature Nicholas Piggin
2017-11-02 1:55 ` [PATCH v2 2/2] powerpc/64s: idle skip POWER9 DD1 and DD2.0 specific workarounds on DD2.1 Nicholas Piggin
2017-11-03 1:13 ` Michael Neuling
2017-11-03 4:22 ` Nicholas Piggin
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