linux-imx

/*

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file "COPYING" in the main directory of this archive

 * for more details.

 *

 * Copyright (c) 2004-2008 Silicon Graphics, Inc.  All Rights Reserved.

 */

​

/*

 * Cross Partition (XP) base.

 *

 *  XP provides a base from which its users can interact

 *  with XPC, yet not be dependent on XPC.

 *

 */

​

#include <linux/module.h>

#include <linux/device.h>

#include "xp.h"

​

/* define the XP debug device structures to be used with dev_dbg() et al */

​

struct device_driver xp_dbg_name = {

    .name = "xp"

};

​

struct device xp_dbg_subname = {

    .init_name = "",        /* set to "" */

    .driver = &xp_dbg_name

};

​

struct device *xp = &xp_dbg_subname;

​

/* max #of partitions possible */

short xp_max_npartitions;

EXPORT_SYMBOL_GPL(xp_max_npartitions);

​

short xp_partition_id;

EXPORT_SYMBOL_GPL(xp_partition_id);

​

u8 xp_region_size;

EXPORT_SYMBOL_GPL(xp_region_size);

​

unsigned long (*xp_pa) (void *addr);

EXPORT_SYMBOL_GPL(xp_pa);

​

unsigned long (*xp_socket_pa) (unsigned long gpa);

EXPORT_SYMBOL_GPL(xp_socket_pa);

​

enum xp_retval (*xp_remote_memcpy) (unsigned long dst_gpa,

                    const unsigned long src_gpa, size_t len);

EXPORT_SYMBOL_GPL(xp_remote_memcpy);

​

int (*xp_cpu_to_nasid) (int cpuid);

EXPORT_SYMBOL_GPL(xp_cpu_to_nasid);

​

enum xp_retval (*xp_expand_memprotect) (unsigned long phys_addr,

                    unsigned long size);

EXPORT_SYMBOL_GPL(xp_expand_memprotect);

enum xp_retval (*xp_restrict_memprotect) (unsigned long phys_addr,

                      unsigned long size);

EXPORT_SYMBOL_GPL(xp_restrict_memprotect);

​

/*

 * xpc_registrations[] keeps track of xpc_connect()'s done by the kernel-level

 * users of XPC.

 */

struct xpc_registration xpc_registrations[XPC_MAX_NCHANNELS];

EXPORT_SYMBOL_GPL(xpc_registrations);

​

/*

 * Initialize the XPC interface to NULL to indicate that XPC isn't loaded.

 */

struct xpc_interface xpc_interface = { };

EXPORT_SYMBOL_GPL(xpc_interface);

​

/*

 * XPC calls this when it (the XPC module) has been loaded.

 */

void

xpc_set_interface(void (*connect) (int),

          void (*disconnect) (int),

          enum xp_retval (*send) (short, int, u32, void *, u16),

          enum xp_retval (*send_notify) (short, int, u32, void *, u16,

                          xpc_notify_func, void *),

          void (*received) (short, int, void *),

          enum xp_retval (*partid_to_nasids) (short, void *))

{

    xpc_interface.connect = connect;

    xpc_interface.disconnect = disconnect;

    xpc_interface.send = send;

    xpc_interface.send_notify = send_notify;