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From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>
Cc: Dave Martin <Dave.Martin@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	Mark Brown <broonie@kernel.org>
Subject: [PATCH v3 0/3] arm64/sve: Trivial optimisation for 128 bit SVE vectors
Date: Wed, 12 May 2021 16:11:28 +0100	[thread overview]
Message-ID: <20210512151131.27877-1-broonie@kernel.org> (raw)

This series is a combination of factoring out some duplicated code and a
very minor optimisation to the performance of handling converting FPSIMD
state to SVE in the live registers for 128 bit SVE vectors.

v3:
 - Tweak comment.
v2:
 - Combine P and FFR flushing into a single macro.

Mark Brown (3):
  arm64/sve: Split _sve_flush macro into separate Z and predicate
    flushes
  arm64/sve: Use the sve_flush macros in sve_load_from_fpsimd_state()
  arm64/sve: Skip flushing Z registers with 128 bit vectors

 arch/arm64/include/asm/fpsimd.h       |  2 +-
 arch/arm64/include/asm/fpsimdmacros.h |  4 +++-
 arch/arm64/kernel/entry-fpsimd.S      | 22 +++++++++++++++-------
 arch/arm64/kernel/fpsimd.c            |  6 ++++--
 4 files changed, 23 insertions(+), 11 deletions(-)


base-commit: 6efb943b8616ec53a5e444193dccf1af9ad627b5
-- 
2.20.1


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             reply	other threads:[~2021-05-12 15:21 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-12 15:11 Mark Brown [this message]
2021-05-12 15:11 ` [PATCH v3 1/3] arm64/sve: Split _sve_flush macro into separate Z and predicate flushes Mark Brown
2021-05-12 15:11 ` [PATCH v3 2/3] arm64/sve: Use the sve_flush macros in sve_load_from_fpsimd_state() Mark Brown
2021-05-12 15:11 ` [PATCH v3 3/3] arm64/sve: Skip flushing Z registers with 128 bit vectors Mark Brown
2021-05-14 11:03 ` [PATCH v3 0/3] arm64/sve: Trivial optimisation for 128 bit SVE vectors Catalin Marinas
2021-05-26 22:15 ` Will Deacon

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