From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Date: Thu, 19 Mar 2015 02:25:17 +0000 Subject: Generic IOMMU pooled allocator Message-Id: <20150318.222517.1444725543017433108.davem@davemloft.net> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linuxppc-dev@lists.ozlabs.org Cc: sparclinux@vger.kernel.org, paulus@samba.org, sowmini.varadhan@oracle.com PowerPC folks, we're trying to kill the locking contention in our IOMMU allocators and noticed that you guys have a nice solution to this in your IOMMU code. Sowmini put together a patch series that tries to extract out the generic parts of your code and place it in lib/iommu-common.c so that both Sparc and PowerPC can make use of it. The real test is if powerpc can be converted to use it. So if you guys could please take a look at the current version of this series at: http://patchwork.ozlabs.org/patch/449712/ http://patchwork.ozlabs.org/patch/449713/ http://patchwork.ozlabs.org/patch/449715/ and give us some feedback that would be great. After we sort out making this work properly for both architectures we can figure out who merges which parts via what tree(s). Thanks! From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from shards.monkeyblade.net (shards.monkeyblade.net [IPv6:2001:4f8:3:36:211:85ff:fe63:a549]) by lists.ozlabs.org (Postfix) with ESMTP id 917911A013C for ; Thu, 19 Mar 2015 13:25:20 +1100 (AEDT) Date: Wed, 18 Mar 2015 22:25:17 -0400 (EDT) Message-Id: <20150318.222517.1444725543017433108.davem@davemloft.net> To: linuxppc-dev@lists.ozlabs.org Subject: Generic IOMMU pooled allocator From: David Miller Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Cc: sparclinux@vger.kernel.org, paulus@samba.org, sowmini.varadhan@oracle.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , PowerPC folks, we're trying to kill the locking contention in our IOMMU allocators and noticed that you guys have a nice solution to this in your IOMMU code. Sowmini put together a patch series that tries to extract out the generic parts of your code and place it in lib/iommu-common.c so that both Sparc and PowerPC can make use of it. The real test is if powerpc can be converted to use it. So if you guys could please take a look at the current version of this series at: http://patchwork.ozlabs.org/patch/449712/ http://patchwork.ozlabs.org/patch/449713/ http://patchwork.ozlabs.org/patch/449715/ and give us some feedback that would be great. After we sort out making this work properly for both architectures we can figure out who merges which parts via what tree(s). Thanks!