From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: [PATCH 12/22] iommu: Add function to query the default domain of a group Date: Thu, 28 May 2015 18:41:35 +0200 Message-ID: <1432831305-11126-13-git-send-email-joro@8bytes.org> References: <1432831305-11126-1-git-send-email-joro@8bytes.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1432831305-11126-1-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@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: jroedel-l3A5Bk7waGM@public.gmane.org, Laurent Pinchart , Heiko Stuebner , Will Deacon , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Thierry Reding , Kukjin Kim , David Woodhouse List-Id: iommu@lists.linux-foundation.org From: Joerg Roedel This will be used to handle unity mappings in the iommu drivers. Signed-off-by: Joerg Roedel --- drivers/iommu/iommu.c | 5 +++++ include/linux/iommu.h | 1 + 2 files changed, 6 insertions(+) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index ffad1ea..224c6dd 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -837,6 +837,11 @@ struct iommu_group *iommu_group_get_for_dev(struct device *dev) return group; } +struct iommu_domain *iommu_group_default_domain(struct iommu_group *group) +{ + return group->default_domain; +} + static int add_iommu_group(struct device *dev, void *data) { struct iommu_callback_data *cb = data; diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 6894999..b944b2b 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -249,6 +249,7 @@ extern int iommu_group_unregister_notifier(struct iommu_group *group, struct notifier_block *nb); extern int iommu_group_id(struct iommu_group *group); extern struct iommu_group *iommu_group_get_for_dev(struct device *dev); +extern struct iommu_domain *iommu_group_default_domain(struct iommu_group *); extern int iommu_domain_get_attr(struct iommu_domain *domain, enum iommu_attr, void *data); -- 1.9.1