From: Joerg Roedel <joro@8bytes.org>
To: iommu@lists.linux-foundation.org
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Hanjun Guo <hanjun.guo@linaro.org>,
Sudeep Holla <sudeep.holla@arm.com>,
Will Deacon <will.deacon@arm.com>,
Robin Murphy <robin.murphy@arm.com>,
Joerg Roedel <joro@8bytes.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Rob Clark <robdclark@gmail.com>,
Thierry Reding <thierry.reding@gmail.com>,
linux-kernel@vger.kernel.org, Joerg Roedel <jroedel@suse.de>
Subject: [PATCH 2/9] ACPI/IORT: Use helper functions to access dev->iommu_fwspec
Date: Tue, 11 Dec 2018 13:19:03 +0100 [thread overview]
Message-ID: <20181211121910.5604-3-joro@8bytes.org> (raw)
In-Reply-To: <20181211121910.5604-1-joro@8bytes.org>
From: Joerg Roedel <jroedel@suse.de>
Use the new helpers dev_iommu_fwspec_get()/set() to access
the dev->iommu_fwspec pointer. This makes it easier to move
that pointer later into another struct.
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
drivers/acpi/arm64/iort.c | 19 ++++++++++---------
1 file changed, 10 insertions(+), 9 deletions(-)
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index 70f4e80b9246..736381673638 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -779,7 +779,7 @@ static inline bool iort_iommu_driver_enabled(u8 type)
static struct acpi_iort_node *iort_get_msi_resv_iommu(struct device *dev)
{
struct acpi_iort_node *iommu;
- struct iommu_fwspec *fwspec = dev->iommu_fwspec;
+ struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
iommu = iort_get_iort_node(fwspec->iommu_fwnode);
@@ -794,9 +794,10 @@ static struct acpi_iort_node *iort_get_msi_resv_iommu(struct device *dev)
return NULL;
}
-static inline const struct iommu_ops *iort_fwspec_iommu_ops(
- struct iommu_fwspec *fwspec)
+static inline const struct iommu_ops *iort_fwspec_iommu_ops(struct device *dev)
{
+ struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
+
return (fwspec && fwspec->ops) ? fwspec->ops : NULL;
}
@@ -824,6 +825,7 @@ static inline int iort_add_device_replay(const struct iommu_ops *ops,
*/
int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head)
{
+ struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
struct acpi_iort_its_group *its;
struct acpi_iort_node *iommu_node, *its_node = NULL;
int i, resv = 0;
@@ -841,9 +843,9 @@ int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head)
* a given PCI or named component may map IDs to.
*/
- for (i = 0; i < dev->iommu_fwspec->num_ids; i++) {
+ for (i = 0; i < fwspec->num_ids; i++) {
its_node = iort_node_map_id(iommu_node,
- dev->iommu_fwspec->ids[i],
+ fwspec->ids[i],
NULL, IORT_MSI_TYPE);
if (its_node)
break;
@@ -874,8 +876,7 @@ int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head)
return (resv == its->its_count) ? resv : -ENODEV;
}
#else
-static inline const struct iommu_ops *iort_fwspec_iommu_ops(
- struct iommu_fwspec *fwspec)
+static inline const struct iommu_ops *iort_fwspec_iommu_ops(struct device *dev);
{ return NULL; }
static inline int iort_add_device_replay(const struct iommu_ops *ops,
struct device *dev)
@@ -1045,7 +1046,7 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev)
* If we already translated the fwspec there
* is nothing left to do, return the iommu_ops.
*/
- ops = iort_fwspec_iommu_ops(dev->iommu_fwspec);
+ ops = iort_fwspec_iommu_ops(dev);
if (ops)
return ops;
@@ -1084,7 +1085,7 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev)
* add_device callback for dev, replay it to get things in order.
*/
if (!err) {
- ops = iort_fwspec_iommu_ops(dev->iommu_fwspec);
+ ops = iort_fwspec_iommu_ops(dev);
err = iort_add_device_replay(ops, dev);
}
--
2.17.1
next prev parent reply other threads:[~2018-12-11 12:19 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-11 12:19 [PATCH 0/9 v2] Access dev->iommu_fwspec through functions Joerg Roedel
2018-12-11 12:19 ` [PATCH 1/9] iommu: Introduce wrappers around dev->iommu_fwspec Joerg Roedel
2018-12-11 12:19 ` Joerg Roedel [this message]
2018-12-17 9:17 ` [PATCH 2/9] ACPI/IORT: Use helper functions to access dev->iommu_fwspec Hanjun Guo
2018-12-11 12:19 ` [PATCH 3/9] iommu/arm-smmu: " Joerg Roedel
2018-12-11 12:19 ` [PATCH 4/9] iommu/dma: " Joerg Roedel
2018-12-11 12:19 ` [PATCH 5/9] iommu/ipmmu-vmsa: " Joerg Roedel
2018-12-11 12:19 ` [PATCH 6/9] iommu/mediatek: " Joerg Roedel
2018-12-12 13:40 ` Yong Wu
2018-12-11 12:19 ` [PATCH 7/9] iommu/of: " Joerg Roedel
2018-12-11 12:19 ` [PATCH 8/9] iommu/qcom: " Joerg Roedel
2018-12-11 12:19 ` [PATCH 9/9] iommu/tegra: " Joerg Roedel
2018-12-12 9:53 ` Thierry Reding
-- strict thread matches above, loose matches on Subject: below --
2018-12-04 16:29 [PATCH 0/9] Access dev->iommu_fwspec through functions Joerg Roedel
2018-12-04 16:29 ` [PATCH 2/9] ACPI/IORT: Use helper functions to access dev->iommu_fwspec Joerg Roedel
2018-12-05 17:50 ` Robin Murphy
2018-12-06 13:53 ` Joerg Roedel
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