From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [103.22.144.67]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3wYVLH2GmczDqjF for ; Thu, 25 May 2017 23:22:31 +1000 (AEST) In-Reply-To: <20170520042949.29359-1-npiggin@gmail.com> To: Nicholas Piggin , linuxppc-dev@lists.ozlabs.org From: Michael Ellerman Cc: benh@ozlabs.au.ibm.com, tuliom@linux.vnet.ibm.com, Steve Munroe , Nicholas Piggin , Bill Schmidt , Peter Bergner , Michael Neuling Subject: Re: powerpc: add PPC_FEATURE userspace bits for SCV and DARN instructions Message-Id: <3wYVLH13PDz9s8Y@ozlabs.org> Date: Thu, 25 May 2017 23:22:30 +1000 (AEST) List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 > Acked-by: Benjamin Herrenschmidt Applied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/a4700a26107241cc7b9ac8528b2c67 cheers