rapidio: add memory mapping driver to RapidIO

diff -puN arch/powerpc/sysdev/fsl_rio.c~rapidio-add-memory-mapping-driver-to-rapidio arch/powerpc/sysdev/fsl_rio.c
@@ -1058,6 +1058,7 @@ int fsl_rio_setup(struct of_device *dev)
 	port = kzalloc(sizeof(struct rio_mport), GFP_KERNEL);
 	port->id = 0;
 	port->index = 0;
+	port->dev = &dev->dev;
 
 	priv = kzalloc(sizeof(struct rio_priv), GFP_KERNEL);
 	if (!priv) {

@@ -1068,8 +1069,9 @@ int fsl_rio_setup(struct of_device *dev)
 
 	INIT_LIST_HEAD(&port->dbells);
 	port->iores.start = law_start;
-	port->iores.end = law_start + law_size;
+	port->iores.end = law_start + law_size - 1;
 	port->iores.flags = IORESOURCE_MEM;
+	port->iores.name = "rio_io_win";
 
 	priv->bellirq = irq_of_parse_and_map(dev->node, 2);
 	priv->txirq = irq_of_parse_and_map(dev->node, 3);

387 lines not on this page · raw message

diff -puN include/linux/rio.h~rapidio-add-memory-mapping-driver-to-rapidio include/linux/rio.h
@@ -176,6 +176,7 @@ struct rio_mport {
 	struct rio_msg outb_msg[RIO_MAX_MBOX];
 	int host_deviceid;	/* Host device ID */
 	struct rio_ops *ops;	/* maintenance transaction functions */
+	struct rio_mem_ops *mops; /* Memory functions */
 	unsigned char id;	/* port ID, unique among all ports */
 	unsigned char index;	/* port index, unique among all port
 				   interfaces of the same type */

@@ -185,6 +186,7 @@ struct rio_mport {
 				 */
 	enum rio_phy_type phy_type;	/* RapidIO phy type */
 	unsigned char name[40];
+	struct device *dev;
 	void *priv;		/* Master port private data */
 };
 

@@ -319,6 +321,43 @@ struct rio_route_ops {
 			 u16 table, u16 route_destid, u8 * route_port);
 };
 
+/**
+ * Struct for RIO memory definition.
+ * @node: Node in list of memories
+ * @virt: The virtual address for mapped memory accessing.
+ * @owner: The owner id of this memory.
+ * @size: The size of memory space, it should same to iores and riores.
+ * @iores: The resource of local IO region for mapping.
+ * @riores: The resource of mapped RapidIO space region.
+ */
+struct rio_mem {
+	struct list_head node;
+	void *virt;
+	u32 owner;
+	struct rio_dev *dev;
+	resource_size_t size;
+	struct resource iores;
+	struct resource riores;
+};
+
+/**
+ * Struct for RIO memory definition.
+ * @map_inb: The function for mapping inbound memory window.
+ * @map_outb: The function for mapping outbound memory window.
+ * @unmap_inb: The function for unmapping inbound memory window.
+ * @unmap_outb: The function for unmapping outbound memory window.
+ */
+struct rio_mem_ops {
+	int (*map_inb) (struct rio_mport *, resource_size_t lstart,
+			resource_size_t rstart,
+			resource_size_t size, u32 flags);
+	int (*map_outb) (struct rio_mport *, resource_size_t lstart,
+			resource_size_t rstart,
+			resource_size_t size, u16 tid, u32 flags);
+	void (*unmap_inb) (struct rio_mport *, resource_size_t lstart);
+	void (*unmap_outb) (struct rio_mport *, resource_size_t lstart);
+};
+
 /* Architecture and hardware-specific functions */
 extern int rio_init_mports(void);
 extern void rio_register_mport(struct rio_mport *);

61 lines not on this page · raw message