Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755472AbaJGXES (ORCPT ); Tue, 7 Oct 2014 19:04:18 -0400 Received: from ozlabs.org ([103.22.144.67]:37120 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752794AbaJGXER (ORCPT ); Tue, 7 Oct 2014 19:04:17 -0400 In-Reply-To: <1412678902-18672-13-git-send-email-mikey@neuling.org> To: Michael Neuling , greg@kroah.com, arnd@arndb.de, benh@kernel.crashing.org From: Michael Ellerman Cc: cbe-oss-dev@lists.ozlabs.org, mikey@neuling.org, "Aneesh Kumar K.V" , imunsie@au.ibm.com, linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org, jk@ozlabs.org, anton@samba.org Subject: Re: [v3,12/16] cxl: Add base builtin support Message-Id: <20141007230416.2040C14011E@ozlabs.org> Date: Wed, 8 Oct 2014 10:04:15 +1100 (EST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2014-07-10 at 10:48:18 UTC, Michael Neuling wrote: > From: Ian Munsie > > This adds the base cxl support that needs to be build into the kernel to use > cxl as a module. This is needed so that the cxl call backs from the core > powerpc mm code always exist irrespective of if the cxl module is loaded or > not. This is similar to how cell works with CONFIG_SPU_BASE. > > This adds a cxl_slbia() call (similar to spu_flush_all_slbs()) which checks for > the cxl module being loaded. If the modules is not loaded we return, otherwise > we call into the cxl SLB invalidation code. > > This also adds the cxl_ctx_in_use() function for use in the mm code to see if > any cxl contexts are currently in use. This is used by the tlbie() to > determine if it can do local TLB invalidations or not. This also adds get/put > calls for the cxl driver module to refcount the active cxl contexts. This last paragraph is no longer true. cheers -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/