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Commit 6312236f authored by Stephen Rothwell's avatar Stephen Rothwell Committed by Paul Mackerras
Browse files

[PATCH] ppc64: make the bus matching function platform specific 



This patch allows us to have a different bus if matching function for
each platform.

Signed-off-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 8c65b5c9

arch/ppc64/kernel/iSeries_vio.c

+11 −1
Original line number Diff line number Diff line
@@ -114,6 +114,16 @@ void __init probe_bus_iseries(void) 
		vio_register_device_iseries("viotape", i);

}



/**

 * vio_match_device_iseries: - Tell if a iSeries VIO device matches a

 *	vio_device_id

 */

static int vio_match_device_iseries(const struct vio_device_id *id,

		const struct vio_dev *dev)

{

	return strncmp(dev->type, id->type, strlen(id->type)) == 0;

}



/**

 * vio_bus_init_iseries: - Initialize the iSeries virtual IO bus

 */
@@ -121,7 +131,7 @@ static int __init vio_bus_init_iseries(void) 
{

	int err;



	err = vio_bus_init();

	err = vio_bus_init(vio_match_device_iseries);

	if (err == 0) {

		iommu_vio_init();

		vio_bus_device.iommu_table = &vio_iommu_table;

arch/ppc64/kernel/vio.c

+19 −9
Original line number Diff line number Diff line
@@ -44,11 +44,8 @@ struct vio_dev vio_bus_device = { /* fake "parent" device */ 
	.dev.bus = &vio_bus_type,

};



#ifdef CONFIG_PPC_ISERIES



#define device_is_compatible(a, b)	1



#endif

static int (*is_match)(const struct vio_device_id *id,

		const struct vio_dev *dev);



/* convert from struct device to struct vio_dev and pass to driver.

 * dev->driver has already been set by generic code because vio_bus_match
@@ -133,8 +130,7 @@ static const struct vio_device_id * vio_match_device(const struct vio_device_id 
	DBGENTER();



	while (ids->type) {

		if ((strncmp(dev->type, ids->type, strlen(ids->type)) == 0) &&

			device_is_compatible(dev->dev.platform_data, ids->compat))

		if (is_match(ids, dev))

			return ids;

		ids++;

	}
@@ -168,10 +164,13 @@ static void probe_bus_pseries(void) 
/**

 * vio_bus_init: - Initialize the virtual IO bus

 */

int __init vio_bus_init(void)

int __init vio_bus_init(int (*match_func)(const struct vio_device_id *id,

			const struct vio_dev *dev))

{

	int err;



	is_match = match_func;



	err = bus_register(&vio_bus_type);

	if (err) {

		printk(KERN_ERR "failed to register VIO bus\n");
@@ -192,6 +191,17 @@ int __init vio_bus_init(void) 
}



#ifdef CONFIG_PPC_PSERIES

/**

 * vio_match_device_pseries: - Tell if a pSeries VIO device matches a

 *	vio_device_id

 */

static int vio_match_device_pseries(const struct vio_device_id *id,

		const struct vio_dev *dev)

{

	return (strncmp(dev->type, id->type, strlen(id->type)) == 0) &&

			device_is_compatible(dev->dev.platform_data, id->compat);

}



/**

 * vio_bus_init_pseries: - Initialize the pSeries virtual IO bus

 */
@@ -199,7 +209,7 @@ static int __init vio_bus_init_pseries(void) 
{

	int err;



	err = vio_bus_init();

	err = vio_bus_init(vio_match_device_pseries);

	if (err == 0)

		probe_bus_pseries();

	return err;

include/asm-ppc64/vio.h

+2 −1
Original line number Diff line number Diff line
@@ -105,6 +105,7 @@ static inline struct vio_dev *to_vio_dev(struct device *dev) 
	return container_of(dev, struct vio_dev, dev);

}



extern int vio_bus_init(void);

extern int vio_bus_init(int (*is_match)(const struct vio_device_id *id,

			const struct vio_dev *dev));



#endif /* _ASM_VIO_H */