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ACPI/IORT: Use helper functions to access dev->iommu_fwspec

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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.

Acked-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Joerg Roedel 2018-11-29 14:01:00 +01:00
parent b4ef725eeb
commit 8097e53eab
1 changed files with 10 additions and 9 deletions
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19
drivers/acpi/arm64/iort.c
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@ -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);
}