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-rw-r--r--include/acpi/acpi_bus.h2
-rw-r--r--include/asm-generic/vmlinux.lds.h1
-rw-r--r--include/linux/acpi.h26
-rw-r--r--include/linux/acpi_iort.h16
-rw-r--r--include/linux/dma-iommu.h4
-rw-r--r--include/linux/fwnode.h3
-rw-r--r--include/linux/iommu.h15
-rw-r--r--include/linux/of_iommu.h12
8 files changed, 76 insertions, 3 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index c1a524de67c5..4242c31ffaee 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -573,6 +573,8 @@ struct acpi_pci_root {
bool acpi_dma_supported(struct acpi_device *adev);
enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev);
+void acpi_dma_configure(struct device *dev, enum dev_dma_attr attr);
+void acpi_dma_deconfigure(struct device *dev);
struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
u64 address, bool check_children);
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 31e1d639abed..9e3aa34341f4 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -566,6 +566,7 @@
IRQCHIP_OF_MATCH_TABLE() \
ACPI_PROBE_TABLE(irqchip) \
ACPI_PROBE_TABLE(clksrc) \
+ ACPI_PROBE_TABLE(iort) \
EARLYCON_TABLE()
#define INIT_TEXT \
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 43b28f04a1f5..d5f017448a89 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -56,6 +56,27 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
acpi_fwnode_handle(adev) : NULL)
#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
+static inline struct fwnode_handle *acpi_alloc_fwnode_static(void)
+{
+ struct fwnode_handle *fwnode;
+
+ fwnode = kzalloc(sizeof(struct fwnode_handle), GFP_KERNEL);
+ if (!fwnode)
+ return NULL;
+
+ fwnode->type = FWNODE_ACPI_STATIC;
+
+ return fwnode;
+}
+
+static inline void acpi_free_fwnode_static(struct fwnode_handle *fwnode)
+{
+ if (WARN_ON(!fwnode || fwnode->type != FWNODE_ACPI_STATIC))
+ return;
+
+ kfree(fwnode);
+}
+
/**
* ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
* the PCI-defined class-code information
@@ -741,6 +762,11 @@ static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
return DEV_DMA_NOT_SUPPORTED;
}
+static inline void acpi_dma_configure(struct device *dev,
+ enum dev_dma_attr attr) { }
+
+static inline void acpi_dma_deconfigure(struct device *dev) { }
+
#define ACPI_PTR(_ptr) (NULL)
static inline void acpi_device_set_enumerated(struct acpi_device *adev)
diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h
index 0e32dac8fd03..77e08099e554 100644
--- a/include/linux/acpi_iort.h
+++ b/include/linux/acpi_iort.h
@@ -23,20 +23,36 @@
#include <linux/fwnode.h>
#include <linux/irqdomain.h>
+#define IORT_IRQ_MASK(irq) (irq & 0xffffffffULL)
+#define IORT_IRQ_TRIGGER_MASK(irq) ((irq >> 32) & 0xffffffffULL)
+
int iort_register_domain_token(int trans_id, struct fwnode_handle *fw_node);
void iort_deregister_domain_token(int trans_id);
struct fwnode_handle *iort_find_domain_token(int trans_id);
#ifdef CONFIG_ACPI_IORT
void acpi_iort_init(void);
+bool iort_node_match(u8 type);
u32 iort_msi_map_rid(struct device *dev, u32 req_id);
struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id);
+/* IOMMU interface */
+void iort_set_dma_mask(struct device *dev);
+const struct iommu_ops *iort_iommu_configure(struct device *dev);
#else
static inline void acpi_iort_init(void) { }
+static inline bool iort_node_match(u8 type) { return false; }
static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id)
{ return req_id; }
static inline struct irq_domain *iort_get_device_domain(struct device *dev,
u32 req_id)
{ return NULL; }
+/* IOMMU interface */
+static inline void iort_set_dma_mask(struct device *dev) { }
+static inline
+const struct iommu_ops *iort_iommu_configure(struct device *dev)
+{ return NULL; }
#endif
+#define IORT_ACPI_DECLARE(name, table_id, fn) \
+ ACPI_DECLARE_PROBE_ENTRY(iort, name, table_id, 0, NULL, 0, fn)
+
#endif /* __ACPI_IORT_H__ */
diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h
index 32c589062bd9..7f7e9a7e3839 100644
--- a/include/linux/dma-iommu.h
+++ b/include/linux/dma-iommu.h
@@ -61,6 +61,10 @@ void iommu_dma_unmap_page(struct device *dev, dma_addr_t handle, size_t size,
enum dma_data_direction dir, unsigned long attrs);
void iommu_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction dir, unsigned long attrs);
+dma_addr_t iommu_dma_map_resource(struct device *dev, phys_addr_t phys,
+ size_t size, enum dma_data_direction dir, unsigned long attrs);
+void iommu_dma_unmap_resource(struct device *dev, dma_addr_t handle,
+ size_t size, enum dma_data_direction dir, unsigned long attrs);
int iommu_dma_supported(struct device *dev, u64 mask);
int iommu_dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index 851671742790..8bd28ce6d76e 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -17,8 +17,9 @@ enum fwnode_type {
FWNODE_OF,
FWNODE_ACPI,
FWNODE_ACPI_DATA,
+ FWNODE_ACPI_STATIC,
FWNODE_PDATA,
- FWNODE_IRQCHIP,
+ FWNODE_IRQCHIP
};
struct fwnode_handle {
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 436dc21318af..0ff5111f6959 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -253,6 +253,7 @@ extern void iommu_group_remove_device(struct device *dev);
extern int iommu_group_for_each_dev(struct iommu_group *group, void *data,
int (*fn)(struct device *, void *));
extern struct iommu_group *iommu_group_get(struct device *dev);
+extern struct iommu_group *iommu_group_ref_get(struct iommu_group *group);
extern void iommu_group_put(struct iommu_group *group);
extern int iommu_group_register_notifier(struct iommu_group *group,
struct notifier_block *nb);
@@ -351,6 +352,9 @@ int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode,
const struct iommu_ops *ops);
void iommu_fwspec_free(struct device *dev);
int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids);
+void iommu_register_instance(struct fwnode_handle *fwnode,
+ const struct iommu_ops *ops);
+const struct iommu_ops *iommu_get_instance(struct fwnode_handle *fwnode);
#else /* CONFIG_IOMMU_API */
@@ -580,6 +584,17 @@ static inline int iommu_fwspec_add_ids(struct device *dev, u32 *ids,
return -ENODEV;
}
+static inline void iommu_register_instance(struct fwnode_handle *fwnode,
+ const struct iommu_ops *ops)
+{
+}
+
+static inline
+const struct iommu_ops *iommu_get_instance(struct fwnode_handle *fwnode)
+{
+ return NULL;
+}
+
#endif /* CONFIG_IOMMU_API */
#endif /* __LINUX_IOMMU_H */
diff --git a/include/linux/of_iommu.h b/include/linux/of_iommu.h
index e80b9c762a03..6a7fc5051099 100644
--- a/include/linux/of_iommu.h
+++ b/include/linux/of_iommu.h
@@ -31,8 +31,16 @@ static inline const struct iommu_ops *of_iommu_configure(struct device *dev,
#endif /* CONFIG_OF_IOMMU */
-void of_iommu_set_ops(struct device_node *np, const struct iommu_ops *ops);
-const struct iommu_ops *of_iommu_get_ops(struct device_node *np);
+static inline void of_iommu_set_ops(struct device_node *np,
+ const struct iommu_ops *ops)
+{
+ iommu_register_instance(&np->fwnode, ops);
+}
+
+static inline const struct iommu_ops *of_iommu_get_ops(struct device_node *np)
+{
+ return iommu_get_instance(&np->fwnode);
+}
extern struct of_device_id __iommu_of_table;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-18 17:23:09 +0300