From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Nicholas Piggin <npiggin@gmail.com>, linuxppc-dev@lists.ozlabs.org
Cc: benh@ozlabs.au.ibm.com, tuliom@linux.vnet.ibm.com,
Steve Munroe <sjmunroe@us.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>,
Bill Schmidt <wschmidt@us.ibm.com>,
Peter Bergner <bergner@us.ibm.com>,
Michael Neuling <michael.neuling@au1.ibm.com>
Subject: Re: powerpc: add PPC_FEATURE userspace bits for SCV and DARN instructions
Date: Thu, 25 May 2017 23:22:30 +1000 (AEST) [thread overview]
Message-ID: <3wYVLH13PDz9s8Y@ozlabs.org> (raw)
In-Reply-To: <20170520042949.29359-1-npiggin@gmail.com>
On Sat, 2017-05-20 at 04:29:49 UTC, Nicholas Piggin wrote:
> Providing "scv" support to userspace requires kernel support, so it
> must be advertised as independently to the base ISA 3 instruction set.
>
> The darn instruction relies on firmware enablement, so it has been
> decided to split this out from the core ISA 3 feature as well.
>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Applied to powerpc fixes, thanks.
https://git.kernel.org/powerpc/c/a4700a26107241cc7b9ac8528b2c67
cheers
prev parent reply other threads:[~2017-05-25 13:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-20 4:29 [PATCH] powerpc: add PPC_FEATURE userspace bits for SCV and DARN instructions Nicholas Piggin
2017-05-21 22:14 ` Benjamin Herrenschmidt
2017-05-25 13:22 ` Michael Ellerman [this message]
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