From: Varun Sethi <Varun.Sethi@freescale.com>
To: <joro@8bytes.org>, <stuart.yoder@freescale.com>,
<scottwood@freescale.com>, <iommu@lists.linux-foundation.org>,
<linuxppc-dev@lists.ozlabs.org>, <linux-kernel@vger.kernel.org>,
<galak@kernel.crashing.org>, <benh@kernel.crashing.org>
Cc: Varun Sethi <Varun.Sethi@freescale.com>
Subject: [PATCH 3/5 v11] iommu/fsl: Add the window permission flag as a parameter to iommu_window_enable API.
Date: Fri, 29 Mar 2013 01:24:00 +0530 [thread overview]
Message-ID: <1364500442-20927-4-git-send-email-Varun.Sethi@freescale.com> (raw)
In-Reply-To: <1364500442-20927-1-git-send-email-Varun.Sethi@freescale.com>
Each iommu window can have access permissions associated with it. Extended the
window_enable API to incorporate window access permissions.
In case of PAMU each window can have its specific set of permissions.
Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
---
- no change in v11.
- no change in v10.
drivers/iommu/iommu.c | 5 +++--
include/linux/iommu.h | 7 ++++---
2 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index f730ed9..1d72b4f 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -853,12 +853,13 @@ EXPORT_SYMBOL_GPL(iommu_unmap);
int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,
- phys_addr_t paddr, u64 size)
+ phys_addr_t paddr, u64 size, int prot)
{
if (unlikely(domain->ops->domain_window_enable == NULL))
return -ENODEV;
- return domain->ops->domain_window_enable(domain, wnd_nr, paddr, size);
+ return domain->ops->domain_window_enable(domain, wnd_nr, paddr, size,
+ prot);
}
EXPORT_SYMBOL_GPL(iommu_domain_window_enable);
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index bb0a0fc..2727810 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -104,7 +104,7 @@ struct iommu_ops {
/* Window handling functions */
int (*domain_window_enable)(struct iommu_domain *domain, u32 wnd_nr,
- phys_addr_t paddr, u64 size);
+ phys_addr_t paddr, u64 size, int prot);
void (*domain_window_disable)(struct iommu_domain *domain, u32 wnd_nr);
/* Set the numer of window per domain */
int (*domain_set_windows)(struct iommu_domain *domain, u32 w_count);
@@ -169,7 +169,8 @@ extern int iommu_domain_set_attr(struct iommu_domain *domain, enum iommu_attr,
/* Window handling function prototypes */
extern int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,
- phys_addr_t offset, u64 size);
+ phys_addr_t offset, u64 size,
+ int prot);
extern void iommu_domain_window_disable(struct iommu_domain *domain, u32 wnd_nr);
/**
* report_iommu_fault() - report about an IOMMU fault to the IOMMU framework
@@ -255,7 +256,7 @@ static inline int iommu_unmap(struct iommu_domain *domain, unsigned long iova,
static inline int iommu_domain_window_enable(struct iommu_domain *domain,
u32 wnd_nr, phys_addr_t paddr,
- u64 size)
+ u64 size, int prot)
{
return -ENODEV;
}
--
1.7.4.1
next prev parent reply other threads:[~2013-03-28 20:02 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-28 19:53 [PATCH 0/5 v11] iommu/fsl: Freescale PAMU driver and IOMMU API implementation Varun Sethi
2013-03-28 19:53 ` [PATCH 1/5 v11] iommu/fsl: Make iova dma_addr_t in the iommu_iova_to_phys API Varun Sethi
2013-03-28 19:53 ` [PATCH 2/5 v11] powerpc: Add iommu domain pointer to device archdata Varun Sethi
2013-04-02 15:08 ` Joerg Roedel
2013-04-03 5:17 ` Sethi Varun-B16395
2013-04-11 18:16 ` Kumar Gala
2013-06-20 14:29 ` Sethi Varun-B16395
2013-06-20 14:41 ` joro
2013-03-28 19:54 ` Varun Sethi [this message]
2013-03-28 19:54 ` [PATCH 4/5 v11] iommu/fsl: Add additional iommu attributes required by the PAMU driver Varun Sethi
2013-04-02 15:10 ` Joerg Roedel
2013-04-03 5:21 ` Sethi Varun-B16395
2013-04-03 8:08 ` Joerg Roedel
2013-03-28 19:54 ` [PATCH 5/5 v11] iommu/fsl: Freescale PAMU driver and iommu implementation Varun Sethi
2013-04-02 15:29 ` Yoder Stuart-B08248
2013-04-02 16:18 ` Joerg Roedel
2013-04-03 1:35 ` Timur Tabi
2013-04-03 1:52 ` Scott Wood
2013-04-03 5:12 ` Sethi Varun-B16395
2013-04-03 15:55 ` Yoder Stuart-B08248
2013-04-03 7:01 ` Sethi Varun-B16395
2013-04-03 18:01 ` Alex Williamson
2013-04-04 13:00 ` Sethi Varun-B16395
2013-04-04 15:22 ` Alex Williamson
2013-04-04 16:35 ` Sethi Varun-B16395
2013-04-04 16:43 ` Alex Williamson
2013-04-05 0:01 ` Sethi Varun-B16395
2013-04-04 16:43 ` Yoder Stuart-B08248
2013-04-02 16:23 ` [PATCH 0/5 v11] iommu/fsl: Freescale PAMU driver and IOMMU API implementation Joerg Roedel
2013-04-02 17:50 ` Sethi Varun-B16395
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