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From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH 0/3] improve recoverability of OPAL calls
Date: Mon, 23 Oct 2017 17:08:12 +1000	[thread overview]
Message-ID: <20171023070815.19803-1-npiggin@gmail.com> (raw)

Here's a few patches to improve recoverability for FIXUP_ENDIAN
on powernv. We should try to minimise SRR[01] (and MSR[RI]=0) usage
as much as possible. Whether that's by using HSRR or mtmsrd, it
usually results in faster and smaller code too.

There's a few other places we can improve, but I've had these
patches around for a while.

Thanks,
Nick


Nicholas Piggin (3):
  powerpc/book3s: use label for FIXUP_ENDIAN macro branch
  powerpc/book3s: Add an HV variant of FIXUP_ENDIAN that is recoverable
  powerpc/powernv: Use FIXUP_ENDIAN_HV in OPAL return

 arch/powerpc/include/asm/ppc_asm.h             | 27 ++++++++++++++++++++++++--
 arch/powerpc/platforms/powernv/opal-wrappers.S |  4 ++--
 2 files changed, 27 insertions(+), 4 deletions(-)

-- 
2.13.3

             reply	other threads:[~2017-10-23  7:08 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-23  7:08 Nicholas Piggin [this message]
2017-10-23  7:08 ` [PATCH 1/3] powerpc/book3s: use label for FIXUP_ENDIAN macro branch Nicholas Piggin
2017-11-07 23:30   ` [1/3] " Michael Ellerman
2017-10-23  7:08 ` [PATCH 2/3] powerpc/book3s: Add an HV variant of FIXUP_ENDIAN that is recoverable Nicholas Piggin
2017-10-23  7:08 ` [PATCH 3/3] powerpc/powernv: Use FIXUP_ENDIAN_HV in OPAL return Nicholas Piggin

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