linux-4.4.1/of_iommu_configure()
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開始行:
*参照元 [#u3ee02e4]
#backlinks
*説明 [#qa8f99a1]
-パス: [[linux-4.4.1/drivers/iommu/of_iommu.c]]
-FIXME: これは何？
--説明
**引数 [#s54a04c5]
-struct device *dev
--
--[[linux-4.4.1/device]]
-struct device_node *master_np
--
--[[linux-4.4.1/device_node]]
**返り値 [#eddf5b07]
-struct iommu_ops *
--
--[[linux-4.4.1/iommu_ops]]
**参考 [#a0e34340]
*実装 [#xb0adf40]
struct iommu_ops *of_iommu_configure(struct device *dev,
struct device_node *master_np)
{
struct of_phandle_args iommu_spec;
struct device_node *np;
struct iommu_ops *ops = NULL;
int idx = 0;
-
--[[linux-4.4.1/of_phandle_args]]
/*
* We can't do much for PCI devices without knowing how
* device IDs are wired up from the PCI bus to the IOMMU.
*/
if (dev_is_pci(dev))
return NULL;
-
--[[linux-4.4.1/dev_is_pci()]]
/*
* We don't currently walk up the tree looking for a pa...
* See the `Notes:' section of
* Documentation/devicetree/bindings/iommu/iommu.txt
*/
while (!of_parse_phandle_with_args(master_np, "iommus",
"#iommu-cells", idx,
&iommu_spec)) {
-
--[[linux-4.4.1/of_parse_phandle_with_args()]]
np = iommu_spec.np;
ops = of_iommu_get_ops(np);
-
--[[linux-4.4.1/of_iommu_get_ops()]]
if (!ops || !ops->of_xlate || ops->of_xlate(dev, &iomm...
goto err_put_node;
of_node_put(np);
idx++;
-
--[[linux-4.4.1/of_node_put()]]
}
return ops;
err_put_node:
of_node_put(np);
return NULL;
}
*コメント [#c98896ea]
終了行:
*参照元 [#u3ee02e4]
#backlinks
*説明 [#qa8f99a1]
-パス: [[linux-4.4.1/drivers/iommu/of_iommu.c]]
-FIXME: これは何？
--説明
**引数 [#s54a04c5]
-struct device *dev
--
--[[linux-4.4.1/device]]
-struct device_node *master_np
--
--[[linux-4.4.1/device_node]]
**返り値 [#eddf5b07]
-struct iommu_ops *
--
--[[linux-4.4.1/iommu_ops]]
**参考 [#a0e34340]
*実装 [#xb0adf40]
struct iommu_ops *of_iommu_configure(struct device *dev,
struct device_node *master_np)
{
struct of_phandle_args iommu_spec;
struct device_node *np;
struct iommu_ops *ops = NULL;
int idx = 0;
-
--[[linux-4.4.1/of_phandle_args]]
/*
* We can't do much for PCI devices without knowing how
* device IDs are wired up from the PCI bus to the IOMMU.
*/
if (dev_is_pci(dev))
return NULL;
-
--[[linux-4.4.1/dev_is_pci()]]
/*
* We don't currently walk up the tree looking for a pa...
* See the `Notes:' section of
* Documentation/devicetree/bindings/iommu/iommu.txt
*/
while (!of_parse_phandle_with_args(master_np, "iommus",
"#iommu-cells", idx,
&iommu_spec)) {
-
--[[linux-4.4.1/of_parse_phandle_with_args()]]
np = iommu_spec.np;
ops = of_iommu_get_ops(np);
-
--[[linux-4.4.1/of_iommu_get_ops()]]
if (!ops || !ops->of_xlate || ops->of_xlate(dev, &iomm...
goto err_put_node;
of_node_put(np);
idx++;
-
--[[linux-4.4.1/of_node_put()]]
}
return ops;
err_put_node:
of_node_put(np);
return NULL;
}
*コメント [#c98896ea]
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