From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757746Ab2GKNo2 (ORCPT ); Wed, 11 Jul 2012 09:44:28 -0400 Received: from ch1ehsobe004.messaging.microsoft.com ([216.32.181.184]:14519 "EHLO ch1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757631Ab2GKNjW (ORCPT ); Wed, 11 Jul 2012 09:39:22 -0400 X-Forefront-Antispam-Report: CIP:163.181.249.109;KIP:(null);UIP:(null);IPV:NLI;H:ausb3twp02.amd.com;RD:none;EFVD:NLI X-SpamScore: 0 X-BigFish: VPS0(zzzz1202hzz8275bhz2dh668h839hd24he5bhf0ah) X-WSS-ID: 0M700LF-02-1PD-02 X-M-MSG: From: Joerg Roedel To: CC: , Joerg Roedel Subject: [PATCH 10/27] iommu/amd: Introduce amd_iommu_init_dma routine Date: Wed, 11 Jul 2012 15:38:55 +0200 Message-ID: <1342013952-10174-11-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1342013952-10174-1-git-send-email-joerg.roedel@amd.com> References: <1342013952-10174-1-git-send-email-joerg.roedel@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-OriginatorOrg: amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This function will initialize everthing necessary so that devices can do DMA. This includes dma_ops and iommu_ops. Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu_init.c | 27 ++++++++++++++++++++------- 1 file changed, 20 insertions(+), 7 deletions(-) diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 514556c..5311a88 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -1627,8 +1627,6 @@ int __init amd_iommu_init_hardware(void) enable_iommus(); - amd_iommu_init_notifier(); - register_syscore_ops(&amd_iommu_syscore_ops); return ret; @@ -1669,6 +1667,25 @@ static bool detect_ivrs(void) return true; } +static int amd_iommu_init_dma(void) +{ + int ret; + + if (iommu_pass_through) + ret = amd_iommu_init_passthrough(); + else + ret = amd_iommu_init_dma_ops(); + + if (ret) + return ret; + + amd_iommu_init_api(); + + amd_iommu_init_notifier(); + + return 0; +} + /* * This is the core init function for AMD IOMMU hardware in the system. * This function is called from the generic x86 DMA layer initialization @@ -1690,11 +1707,7 @@ static int __init amd_iommu_init(void) if (ret) goto free; - if (iommu_pass_through) - ret = amd_iommu_init_passthrough(); - else - ret = amd_iommu_init_dma_ops(); - + ret = amd_iommu_init_dma(); if (ret) goto free; -- 1.7.9.5 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: [PATCH 10/27] iommu/amd: Introduce amd_iommu_init_dma routine Date: Wed, 11 Jul 2012 15:38:55 +0200 Message-ID: <1342013952-10174-11-git-send-email-joerg.roedel@amd.com> References: <1342013952-10174-1-git-send-email-joerg.roedel@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1342013952-10174-1-git-send-email-joerg.roedel-5C7GfCeVMHo@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: iommu@lists.linux-foundation.org This function will initialize everthing necessary so that devices can do DMA. This includes dma_ops and iommu_ops. Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu_init.c | 27 ++++++++++++++++++++------- 1 file changed, 20 insertions(+), 7 deletions(-) diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 514556c..5311a88 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -1627,8 +1627,6 @@ int __init amd_iommu_init_hardware(void) enable_iommus(); - amd_iommu_init_notifier(); - register_syscore_ops(&amd_iommu_syscore_ops); return ret; @@ -1669,6 +1667,25 @@ static bool detect_ivrs(void) return true; } +static int amd_iommu_init_dma(void) +{ + int ret; + + if (iommu_pass_through) + ret = amd_iommu_init_passthrough(); + else + ret = amd_iommu_init_dma_ops(); + + if (ret) + return ret; + + amd_iommu_init_api(); + + amd_iommu_init_notifier(); + + return 0; +} + /* * This is the core init function for AMD IOMMU hardware in the system. * This function is called from the generic x86 DMA layer initialization @@ -1690,11 +1707,7 @@ static int __init amd_iommu_init(void) if (ret) goto free; - if (iommu_pass_through) - ret = amd_iommu_init_passthrough(); - else - ret = amd_iommu_init_dma_ops(); - + ret = amd_iommu_init_dma(); if (ret) goto free; -- 1.7.9.5