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 AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3qwfF00mjnzDqB4 for ; Fri, 29 Apr 2016 00:23:00 +1000 (AEST) In-Reply-To: <20160426002844.GA9198@x1.distroguy.com> To: Chris Smart , linuxppc-dev@lists.ozlabs.org From: Michael Ellerman Subject: Re: powerpc: Add support for userspace P9 copy paste Message-Id: <3qwfDz4HKbz9t7W@ozlabs.org> Date: Fri, 29 Apr 2016 00:22:59 +1000 (AEST) List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 2016-26-04 at 00:28:50 UTC, Chris Smart wrote: > The copy paste facility introduced in POWER9 provides an optimised > mechanism for a userspace application to copy a cacheline. This is > provided by a pair of instructions, copy and paste, while a third, > cp_abort (copy paste abort), provides a clean up of the state in case of > a failure. ... > Signed-off-by: Chris Smart > Reviewed-by: Cyril Bur Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/8a649045e75a4b9091ea9d041f cheers