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-rw-r--r--drivers/rapidio/rio.c50
-rw-r--r--include/linux/rio.h5
-rw-r--r--include/linux/rio_drv.h4
3 files changed, 59 insertions, 0 deletions
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index 17973d3caa88..0dcaa660cba1 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -700,6 +700,56 @@ void rio_unmap_inb_region(struct rio_mport *mport, dma_addr_t lstart)
EXPORT_SYMBOL_GPL(rio_unmap_inb_region);
/**
+ * rio_map_outb_region -- Map outbound memory region.
+ * @mport: Master port.
+ * @destid: destination id window points to
+ * @rbase: RIO base address window translates to
+ * @size: Size of the memory region
+ * @rflags: Flags for mapping.
+ * @local: physical address of memory region mapped
+ *
+ * Return: 0 -- Success.
+ *
+ * This function will create the mapping from RIO space to local memory.
+ */
+int rio_map_outb_region(struct rio_mport *mport, u16 destid, u64 rbase,
+ u32 size, u32 rflags, dma_addr_t *local)
+{
+ int rc = 0;
+ unsigned long flags;
+
+ if (!mport->ops->map_outb)
+ return -ENODEV;
+
+ spin_lock_irqsave(&rio_mmap_lock, flags);
+ rc = mport->ops->map_outb(mport, destid, rbase, size,
+ rflags, local);
+ spin_unlock_irqrestore(&rio_mmap_lock, flags);
+
+ return rc;
+}
+EXPORT_SYMBOL_GPL(rio_map_outb_region);
+
+/**
+ * rio_unmap_inb_region -- Unmap the inbound memory region
+ * @mport: Master port
+ * @destid: destination id mapping points to
+ * @rstart: RIO base address window translates to
+ */
+void rio_unmap_outb_region(struct rio_mport *mport, u16 destid, u64 rstart)
+{
+ unsigned long flags;
+
+ if (!mport->ops->unmap_outb)
+ return;
+
+ spin_lock_irqsave(&rio_mmap_lock, flags);
+ mport->ops->unmap_outb(mport, destid, rstart);
+ spin_unlock_irqrestore(&rio_mmap_lock, flags);
+}
+EXPORT_SYMBOL_GPL(rio_unmap_outb_region);
+
+/**
* rio_mport_get_physefb - Helper function that returns register offset
* for Physical Layer Extended Features Block.
* @port: Master port to issue transaction
diff --git a/include/linux/rio.h b/include/linux/rio.h
index 44f3da512c15..aa2323893e8d 100644
--- a/include/linux/rio.h
+++ b/include/linux/rio.h
@@ -400,6 +400,8 @@ struct rio_mport_attr {
* @map_inb: Callback to map RapidIO address region into local memory space.
* @unmap_inb: Callback to unmap RapidIO address region mapped with map_inb().
* @query_mport: Callback to query mport device attributes.
+ * @map_outb: Callback to map outbound address region into local memory space.
+ * @unmap_outb: Callback to unmap outbound RapidIO address region.
*/
struct rio_ops {
int (*lcread) (struct rio_mport *mport, int index, u32 offset, int len,
@@ -427,6 +429,9 @@ struct rio_ops {
void (*unmap_inb)(struct rio_mport *mport, dma_addr_t lstart);
int (*query_mport)(struct rio_mport *mport,
struct rio_mport_attr *attr);
+ int (*map_outb)(struct rio_mport *mport, u16 destid, u64 rstart,
+ u32 size, u32 flags, dma_addr_t *laddr);
+ void (*unmap_outb)(struct rio_mport *mport, u16 destid, u64 rstart);
};
#define RIO_RESOURCE_MEM 0x00000100
diff --git a/include/linux/rio_drv.h b/include/linux/rio_drv.h
index 5dff9a4cb675..0834264fb7f2 100644
--- a/include/linux/rio_drv.h
+++ b/include/linux/rio_drv.h
@@ -369,6 +369,10 @@ void rio_release_region(struct rio_dev *, int);
extern int rio_map_inb_region(struct rio_mport *mport, dma_addr_t local,
u64 rbase, u32 size, u32 rflags);
extern void rio_unmap_inb_region(struct rio_mport *mport, dma_addr_t lstart);
+extern int rio_map_outb_region(struct rio_mport *mport, u16 destid, u64 rbase,
+ u32 size, u32 rflags, dma_addr_t *local);
+extern void rio_unmap_outb_region(struct rio_mport *mport,
+ u16 destid, u64 rstart);
/* Port-Write management */
extern int rio_request_inb_pwrite(struct rio_dev *,