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From: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Cc: Alexandre Courbot
	<gnurou-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Heiko Stuebner <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>,
	Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
	Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>,
	Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	Kukjin Kim <kgene-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	Thierry Reding
	<thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	jroedel-l3A5Bk7waGM@public.gmane.org,
	linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: [PATCH 02/15] iommu: Introduce iommu domain types
Date: Tue, 27 Jan 2015 00:51:32 +0100	[thread overview]
Message-ID: <1422316305-19216-3-git-send-email-joro@8bytes.org> (raw)
In-Reply-To: <1422316305-19216-1-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>

From: Joerg Roedel <jroedel-l3A5Bk7waGM@public.gmane.org>

This allows to handle domains differently based on their
type in the future. An IOMMU driver can implement certain
optimizations for DMA-API domains for example.

Signed-off-by: Joerg Roedel <jroedel-l3A5Bk7waGM@public.gmane.org>
---
 drivers/iommu/iommu.c |  5 +++--
 include/linux/iommu.h | 11 ++++++++++-
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 684efc0..ab24d77 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -909,14 +909,15 @@ struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
 	ops = bus->iommu_ops;
 
 	if (ops->domain_alloc)
-		domain = ops->domain_alloc();
+		domain = ops->domain_alloc(IOMMU_DOMAIN_UNMANAGED);
 	else
 		domain = kzalloc(sizeof(*domain), GFP_KERNEL);
 
 	if (!domain)
 		return NULL;
 
-	domain->ops = bus->iommu_ops;
+	domain->ops  = bus->iommu_ops;
+	domain->type = IOMMU_DOMAIN_UNMANAGED;
 
 	if (ops->domain_init && domain->ops->domain_init(domain))
 		goto out_free;
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 69d1d12..0b67f65 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -51,7 +51,16 @@ struct iommu_domain_geometry {
 	bool force_aperture;       /* DMA only allowed in mappable range? */
 };
 
+/* This are the possible domain-types */
+enum iommu_domain_type {
+	IOMMU_DOMAIN_DMA,	/* Domain used for DMA-API */
+	IOMMU_DOMAIN_IDENTITY,	/* Identity mapped domain  */
+	IOMMU_DOMAIN_UNMANAGED, /* Domain mappings are managed by a third party
+				   user (like KVM or VFIO) */
+};
+
 struct iommu_domain {
+	enum iommu_domain_type type;
 	const struct iommu_ops *ops;
 	void *priv;
 	iommu_fault_handler_t handler;
@@ -117,7 +126,7 @@ struct iommu_ops {
 	void (*domain_destroy)(struct iommu_domain *domain);
 
 	/* Domain allocation and freeing by the iommu driver */
-	struct iommu_domain *(*domain_alloc)(void);
+	struct iommu_domain *(*domain_alloc)(enum iommu_domain_type);
 	void (*domain_free)(struct iommu_domain *);
 
 	int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
-- 
1.8.4.5

WARNING: multiple messages have this Message-ID
From: Joerg Roedel <joro@8bytes.org>
To: iommu@lists.linux-foundation.org
Cc: Will Deacon <will.deacon@arm.com>, Kukjin Kim <kgene@kernel.org>,
	David Woodhouse <dwmw2@infradead.org>,
	Heiko Stuebner <heiko@sntech.de>, Hiroshi Doyu <hdoyu@nvidia.com>,
	Stephen Warren <swarren@wwwdotorg.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	Alexandre Courbot <gnurou@gmail.com>,
	Alex Williamson <alex.williamson@redhat.com>,
	Arnd Bergmann <arnd@arndb.de>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org,
	linux-rockchip@lists.infradead.org, linux-tegra@vger.kernel.org,
	Joerg Roedel <joro@8bytes.org>,
	jroedel@suse.de
Subject: [PATCH 02/15] iommu: Introduce iommu domain types
Date: Tue, 27 Jan 2015 00:51:32 +0100	[thread overview]
Message-ID: <1422316305-19216-3-git-send-email-joro@8bytes.org> (raw)
In-Reply-To: <1422316305-19216-1-git-send-email-joro@8bytes.org>

From: Joerg Roedel <jroedel@suse.de>

This allows to handle domains differently based on their
type in the future. An IOMMU driver can implement certain
optimizations for DMA-API domains for example.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
 drivers/iommu/iommu.c |  5 +++--
 include/linux/iommu.h | 11 ++++++++++-
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 684efc0..ab24d77 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -909,14 +909,15 @@ struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
 	ops = bus->iommu_ops;
 
 	if (ops->domain_alloc)
-		domain = ops->domain_alloc();
+		domain = ops->domain_alloc(IOMMU_DOMAIN_UNMANAGED);
 	else
 		domain = kzalloc(sizeof(*domain), GFP_KERNEL);
 
 	if (!domain)
 		return NULL;
 
-	domain->ops = bus->iommu_ops;
+	domain->ops  = bus->iommu_ops;
+	domain->type = IOMMU_DOMAIN_UNMANAGED;
 
 	if (ops->domain_init && domain->ops->domain_init(domain))
 		goto out_free;
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 69d1d12..0b67f65 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -51,7 +51,16 @@ struct iommu_domain_geometry {
 	bool force_aperture;       /* DMA only allowed in mappable range? */
 };
 
+/* This are the possible domain-types */
+enum iommu_domain_type {
+	IOMMU_DOMAIN_DMA,	/* Domain used for DMA-API */
+	IOMMU_DOMAIN_IDENTITY,	/* Identity mapped domain  */
+	IOMMU_DOMAIN_UNMANAGED, /* Domain mappings are managed by a third party
+				   user (like KVM or VFIO) */
+};
+
 struct iommu_domain {
+	enum iommu_domain_type type;
 	const struct iommu_ops *ops;
 	void *priv;
 	iommu_fault_handler_t handler;
@@ -117,7 +126,7 @@ struct iommu_ops {
 	void (*domain_destroy)(struct iommu_domain *domain);
 
 	/* Domain allocation and freeing by the iommu driver */
-	struct iommu_domain *(*domain_alloc)(void);
+	struct iommu_domain *(*domain_alloc)(enum iommu_domain_type);
 	void (*domain_free)(struct iommu_domain *);
 
 	int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
-- 
1.8.4.5


WARNING: multiple messages have this Message-ID
From: joro@8bytes.org (Joerg Roedel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 02/15] iommu: Introduce iommu domain types
Date: Tue, 27 Jan 2015 00:51:32 +0100	[thread overview]
Message-ID: <1422316305-19216-3-git-send-email-joro@8bytes.org> (raw)
In-Reply-To: <1422316305-19216-1-git-send-email-joro@8bytes.org>

From: Joerg Roedel <jroedel@suse.de>

This allows to handle domains differently based on their
type in the future. An IOMMU driver can implement certain
optimizations for DMA-API domains for example.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
 drivers/iommu/iommu.c |  5 +++--
 include/linux/iommu.h | 11 ++++++++++-
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 684efc0..ab24d77 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -909,14 +909,15 @@ struct iommu_domain *iommu_domain_alloc(struct bus_type *bus)
 	ops = bus->iommu_ops;
 
 	if (ops->domain_alloc)
-		domain = ops->domain_alloc();
+		domain = ops->domain_alloc(IOMMU_DOMAIN_UNMANAGED);
 	else
 		domain = kzalloc(sizeof(*domain), GFP_KERNEL);
 
 	if (!domain)
 		return NULL;
 
-	domain->ops = bus->iommu_ops;
+	domain->ops  = bus->iommu_ops;
+	domain->type = IOMMU_DOMAIN_UNMANAGED;
 
 	if (ops->domain_init && domain->ops->domain_init(domain))
 		goto out_free;
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 69d1d12..0b67f65 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -51,7 +51,16 @@ struct iommu_domain_geometry {
 	bool force_aperture;       /* DMA only allowed in mappable range? */
 };
 
+/* This are the possible domain-types */
+enum iommu_domain_type {
+	IOMMU_DOMAIN_DMA,	/* Domain used for DMA-API */
+	IOMMU_DOMAIN_IDENTITY,	/* Identity mapped domain  */
+	IOMMU_DOMAIN_UNMANAGED, /* Domain mappings are managed by a third party
+				   user (like KVM or VFIO) */
+};
+
 struct iommu_domain {
+	enum iommu_domain_type type;
 	const struct iommu_ops *ops;
 	void *priv;
 	iommu_fault_handler_t handler;
@@ -117,7 +126,7 @@ struct iommu_ops {
 	void (*domain_destroy)(struct iommu_domain *domain);
 
 	/* Domain allocation and freeing by the iommu driver */
-	struct iommu_domain *(*domain_alloc)(void);
+	struct iommu_domain *(*domain_alloc)(enum iommu_domain_type);
 	void (*domain_free)(struct iommu_domain *);
 
 	int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
-- 
1.8.4.5

  parent reply	other threads:[~2015-01-26 23:51 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-26 23:51 [PATCH 00/15] iommu: Move domain allocation into drivers Joerg Roedel
2015-01-26 23:51 ` Joerg Roedel
2015-01-26 23:51 ` Joerg Roedel
     [not found] ` <1422316305-19216-1-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2015-01-26 23:51   ` [PATCH 01/15] iommu: Introduce domain_alloc and domain_free iommu_ops Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` Joerg Roedel [this message]
2015-01-26 23:51     ` [PATCH 02/15] iommu: Introduce iommu domain types Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
     [not found]     ` <1422316305-19216-3-git-send-email-joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2015-01-28 14:19       ` Will Deacon
2015-01-28 14:19         ` Will Deacon
2015-01-28 14:19         ` Will Deacon
     [not found]         ` <20150128141934.GP1569-5wv7dgnIgG8@public.gmane.org>
2015-01-30 12:22           ` Joerg Roedel
2015-01-30 12:22             ` Joerg Roedel
2015-01-30 12:22             ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 03/15] iommu/amd: Make use of domain_alloc and domain_free Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 04/15] iommu/vt-d: " Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 05/15] iommu/omap: " Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 06/15] iommu/arm-smmu: " Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 07/15] iommu/exynos: " Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 08/15] iommu/tegra-smmu: " Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 09/15] iommu/tegra-gart: " Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 10/15] iommu/msm: " Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 11/15] iommu/shmobile: " Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 12/15] iommu/ipmmu-vmsa: " Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 13/15] iommu/rockchip: " Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 14/15] iommu/fsl: " Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51   ` [PATCH 15/15] iommu: Remove domain_init and domain_free iommu_ops Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-01-26 23:51     ` Joerg Roedel
2015-03-20  9:24 ` [PATCH 00/15] iommu: Move domain allocation into drivers Yingjoe Chen
2015-03-20  9:24   ` Yingjoe Chen
2015-03-23 11:49   ` Joerg Roedel
2015-03-23 11:49     ` Joerg Roedel
2015-03-23 11:49     ` Joerg Roedel
     [not found]     ` <20150323114921.GM4441-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2015-03-23 13:35       ` Yingjoe Chen
2015-03-23 13:35         ` Yingjoe Chen
2015-03-23 13:35         ` Yingjoe Chen

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