Commit 3e494c80 authored by Stephen Rothwell's avatar Stephen Rothwell Committed by Paul Mackerras
Browse files

[PATCH] ppc64: split iSeries specific parts out of vio.c 



This patch splits the iSeries specific parts out of vio.c.

Signed-off-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 60201644

arch/ppc64/kernel/Makefile

+3 −1
Original line number Diff line number Diff line
@@ -50,7 +50,9 @@ obj-$(CONFIG_LPARCFG) += lparcfg.o 
obj-$(CONFIG_HVC_CONSOLE)	+= hvconsole.o

obj-$(CONFIG_BOOTX_TEXT)	+= btext.o

obj-$(CONFIG_HVCS)		+= hvcserver.o

obj-$(CONFIG_IBMVIO)		+= vio.o



vio-obj-$(CONFIG_PPC_ISERIES)	+= iSeries_vio.o

obj-$(CONFIG_IBMVIO)		+= vio.o $(vio-obj-y)

obj-$(CONFIG_XICS)		+= xics.o

obj-$(CONFIG_MPIC)		+= mpic.o

arch/ppc64/kernel/iSeries_vio.c

0 → 100644
+133 −0
Original line number Diff line number Diff line 
/*

 * IBM PowerPC iSeries Virtual I/O Infrastructure Support.

 *

 *    Copyright (c) 2005 Stephen Rothwell, IBM Corp.

 *

 *      This program is free software; you can redistribute it and/or

 *      modify it under the terms of the GNU General Public License

 *      as published by the Free Software Foundation; either version

 *      2 of the License, or (at your option) any later version.

 */

#include <linux/types.h>

#include <linux/device.h>

#include <linux/init.h>



#include <asm/vio.h>

#include <asm/iommu.h>

#include <asm/abs_addr.h>

#include <asm/page.h>

#include <asm/iSeries/vio.h>

#include <asm/iSeries/HvTypes.h>

#include <asm/iSeries/HvLpConfig.h>

#include <asm/iSeries/HvCallXm.h>



struct device *iSeries_vio_dev = &vio_bus_device.dev;

EXPORT_SYMBOL(iSeries_vio_dev);



static struct iommu_table veth_iommu_table;

static struct iommu_table vio_iommu_table;



void __init iommu_vio_init(void)

{

	struct iommu_table *t;

	struct iommu_table_cb cb;

	unsigned long cbp;

	unsigned long itc_entries;



	cb.itc_busno = 255;    /* Bus 255 is the virtual bus */

	cb.itc_virtbus = 0xff; /* Ask for virtual bus */



	cbp = virt_to_abs(&cb);

	HvCallXm_getTceTableParms(cbp);



	itc_entries = cb.itc_size * PAGE_SIZE / sizeof(union tce_entry);

	veth_iommu_table.it_size        = itc_entries / 2;

	veth_iommu_table.it_busno       = cb.itc_busno;

	veth_iommu_table.it_offset      = cb.itc_offset;

	veth_iommu_table.it_index       = cb.itc_index;

	veth_iommu_table.it_type        = TCE_VB;

	veth_iommu_table.it_blocksize	= 1;



	t = iommu_init_table(&veth_iommu_table);



	if (!t)

		printk("Virtual Bus VETH TCE table failed.\n");



	vio_iommu_table.it_size         = itc_entries - veth_iommu_table.it_size;

	vio_iommu_table.it_busno        = cb.itc_busno;

	vio_iommu_table.it_offset       = cb.itc_offset +

					  veth_iommu_table.it_size;

	vio_iommu_table.it_index        = cb.itc_index;

	vio_iommu_table.it_type         = TCE_VB;

	vio_iommu_table.it_blocksize	= 1;



	t = iommu_init_table(&vio_iommu_table);



	if (!t)

		printk("Virtual Bus VIO TCE table failed.\n");

}



/**

 * vio_register_device: - Register a new vio device.

 * @voidev:	The device to register.

 */

static struct vio_dev *__init vio_register_device_iseries(char *type,

		uint32_t unit_num)

{

	struct vio_dev *viodev;



	/* allocate a vio_dev for this node */

	viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL);

	if (!viodev)

		return NULL;

	memset(viodev, 0, sizeof(struct vio_dev));



	snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%s%d", type, unit_num);



	return vio_register_device_common(viodev, viodev->dev.bus_id, type,

			unit_num, &vio_iommu_table);

}



void __init probe_bus_iseries(void)

{

	HvLpIndexMap vlan_map;

	struct vio_dev *viodev;

	int i;



	/* there is only one of each of these */

	vio_register_device_iseries("viocons", 0);

	vio_register_device_iseries("vscsi", 0);



	vlan_map = HvLpConfig_getVirtualLanIndexMap();

	for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) {

		if ((vlan_map & (0x8000 >> i)) == 0)

			continue;

		viodev = vio_register_device_iseries("vlan", i);

		/* veth is special and has it own iommu_table */

		viodev->iommu_table = &veth_iommu_table;

	}

	for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++)

		vio_register_device_iseries("viodasd", i);

	for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++)

		vio_register_device_iseries("viocd", i);

	for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++)

		vio_register_device_iseries("viotape", i);

}



/**

 * vio_bus_init_iseries: - Initialize the iSeries virtual IO bus

 */

static int __init vio_bus_init_iseries(void)

{

	int err;



	err = vio_bus_init();

	if (err == 0) {

		vio_bus_device.iommu_table = &vio_iommu_table;

		iSeries_vio_dev = &vio_bus_device.dev;

		probe_bus_iseries();

	}

	return err;

}



__initcall(vio_bus_init_iseries);

arch/ppc64/kernel/vio.c

+23 −124
Original line number Diff line number Diff line
@@ -25,10 +25,6 @@ 
#include <asm/ppcdebug.h>

#include <asm/vio.h>

#include <asm/hvcall.h>

#include <asm/iSeries/vio.h>

#include <asm/iSeries/HvTypes.h>

#include <asm/iSeries/HvCallXm.h>

#include <asm/iSeries/HvLpConfig.h>



#define DBGENTER() pr_debug("%s entered\n", __FUNCTION__)
@@ -41,26 +37,14 @@ static const struct vio_device_id *vio_match_device( 
static struct iommu_table *vio_build_iommu_table(struct vio_dev *);

static int vio_num_address_cells;

#endif

#ifdef CONFIG_PPC_ISERIES

static struct iommu_table veth_iommu_table;

static struct iommu_table vio_iommu_table;

#endif

static struct vio_dev vio_bus_device  = { /* fake "parent" device */

struct vio_dev vio_bus_device  = { /* fake "parent" device */

	.name = vio_bus_device.dev.bus_id,

	.type = "",

#ifdef CONFIG_PPC_ISERIES

	.iommu_table = &vio_iommu_table,

#endif

	.dev.bus_id = "vio",

	.dev.bus = &vio_bus_type,

};



#ifdef CONFIG_PPC_ISERIES

static struct vio_dev *__init vio_register_device_iseries(char *type,

		uint32_t unit_num);



struct device *iSeries_vio_dev = &vio_bus_device.dev;

EXPORT_SYMBOL(iSeries_vio_dev);



#define device_is_compatible(a, b)	1
@@ -157,48 +141,6 @@ static const struct vio_device_id * vio_match_device(const struct vio_device_id 
	return NULL;

}



#ifdef CONFIG_PPC_ISERIES

void __init iommu_vio_init(void)

{

	struct iommu_table *t;

	struct iommu_table_cb cb;

	unsigned long cbp;

	unsigned long itc_entries;



	cb.itc_busno = 255;    /* Bus 255 is the virtual bus */

	cb.itc_virtbus = 0xff; /* Ask for virtual bus */



	cbp = virt_to_abs(&cb);

	HvCallXm_getTceTableParms(cbp);



	itc_entries = cb.itc_size * PAGE_SIZE / sizeof(union tce_entry);

	veth_iommu_table.it_size        = itc_entries / 2;

	veth_iommu_table.it_busno       = cb.itc_busno;

	veth_iommu_table.it_offset      = cb.itc_offset;

	veth_iommu_table.it_index       = cb.itc_index;

	veth_iommu_table.it_type        = TCE_VB;

	veth_iommu_table.it_blocksize	= 1;



	t = iommu_init_table(&veth_iommu_table);



	if (!t)

		printk("Virtual Bus VETH TCE table failed.\n");



	vio_iommu_table.it_size         = itc_entries - veth_iommu_table.it_size;

	vio_iommu_table.it_busno        = cb.itc_busno;

	vio_iommu_table.it_offset       = cb.itc_offset +

					  veth_iommu_table.it_size;

	vio_iommu_table.it_index        = cb.itc_index;

	vio_iommu_table.it_type         = TCE_VB;

	vio_iommu_table.it_blocksize	= 1;



	t = iommu_init_table(&vio_iommu_table);



	if (!t)

		printk("Virtual Bus VIO TCE table failed.\n");

}

#endif



#ifdef CONFIG_PPC_PSERIES

static void probe_bus_pseries(void)

{
@@ -223,38 +165,10 @@ static void probe_bus_pseries(void) 
}

#endif



#ifdef CONFIG_PPC_ISERIES

static void probe_bus_iseries(void)

{

	HvLpIndexMap vlan_map = HvLpConfig_getVirtualLanIndexMap();

	struct vio_dev *viodev;

	int i;



	/* there is only one of each of these */

	vio_register_device_iseries("viocons", 0);

	vio_register_device_iseries("vscsi", 0);



	vlan_map = HvLpConfig_getVirtualLanIndexMap();

	for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) {

		if ((vlan_map & (0x8000 >> i)) == 0)

			continue;

		viodev = vio_register_device_iseries("vlan", i);

		/* veth is special and has it own iommu_table */

		viodev->iommu_table = &veth_iommu_table;

	}

	for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++)

		vio_register_device_iseries("viodasd", i);

	for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++)

		vio_register_device_iseries("viocd", i);

	for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++)

		vio_register_device_iseries("viotape", i);

}

#endif



/**

 * vio_bus_init: - Initialize the virtual IO bus

 */

static int __init vio_bus_init(void)

int __init vio_bus_init(void)

{

	int err;
@@ -264,25 +178,35 @@ static int __init vio_bus_init(void) 
		return err;

	}



	/* the fake parent of all vio devices, just to give us a nice directory */

	/* the fake parent of all vio devices, just to give us

	 * a nice directory

	 */

	err = device_register(&vio_bus_device.dev);

	if (err) {

		printk(KERN_WARNING "%s: device_register returned %i\n", __FUNCTION__,

			err);

		printk(KERN_WARNING "%s: device_register returned %i\n",

				__FUNCTION__, err);

		return err;

	}



	return 0;

}



#ifdef CONFIG_PPC_PSERIES

	probe_bus_pseries();

#endif

#ifdef CONFIG_PPC_ISERIES

	probe_bus_iseries();

#endif

/**

 * vio_bus_init_pseries: - Initialize the pSeries virtual IO bus

 */

static int __init vio_bus_init_pseries(void)

{

	int err;



	return 0;

	err = vio_bus_init();

	if (err == 0)

		probe_bus_pseries();

	return err;

}



__initcall(vio_bus_init);

__initcall(vio_bus_init_pseries);

#endif



/* vio_dev refcount hit 0 */

static void __devinit vio_dev_release(struct device *dev)
@@ -312,7 +236,7 @@ static ssize_t viodev_show_name(struct device *dev, struct device_attribute *att 
}

DEVICE_ATTR(name, S_IRUSR | S_IRGRP | S_IROTH, viodev_show_name, NULL);



static struct vio_dev * __devinit vio_register_device_common(

struct vio_dev * __devinit vio_register_device_common(

		struct vio_dev *viodev, char *name, char *type,

		uint32_t unit_address, struct iommu_table *iommu_table)

{
@@ -408,31 +332,6 @@ struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node) 
EXPORT_SYMBOL(vio_register_device_node);

#endif



#ifdef CONFIG_PPC_ISERIES

/**

 * vio_register_device: - Register a new vio device.

 * @voidev:	The device to register.

 */

static struct vio_dev *__init vio_register_device_iseries(char *type,

		uint32_t unit_num)

{

	struct vio_dev *viodev;



	DBGENTER();



	/* allocate a vio_dev for this node */

	viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL);

	if (!viodev)

		return NULL;

	memset(viodev, 0, sizeof(struct vio_dev));



	snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%s%d", type, unit_num);



	return vio_register_device_common(viodev, viodev->dev.bus_id, type,

			unit_num, &vio_iommu_table);

}

#endif



void __devinit vio_unregister_device(struct vio_dev *viodev)

{

	DBGENTER();

include/asm-ppc64/vio.h

+7 −0
Original line number Diff line number Diff line
@@ -56,6 +56,9 @@ const void * vio_get_attribute(struct vio_dev *vdev, void* which, int* length); 
int vio_get_irq(struct vio_dev *dev);

int vio_enable_interrupts(struct vio_dev *dev);

int vio_disable_interrupts(struct vio_dev *dev);

extern struct vio_dev * __devinit vio_register_device_common(

		struct vio_dev *viodev, char *name, char *type,

		uint32_t unit_address, struct iommu_table *iommu_table);



extern struct dma_mapping_ops vio_dma_ops;
@@ -95,9 +98,13 @@ struct vio_dev { 
	struct device dev;

};



extern struct vio_dev vio_bus_device;



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);



#endif /* _ASM_VIO_H */

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