* Copyright (c) 2004-2008 Silicon Graphics, Inc. All Rights Reserved.
*/
-
/*
* Cross Partition (XP) base.
*
*
*/
-
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <asm/sn/sn_sal.h>
#include "xp.h"
-
/*
- * Target of nofault PIO read.
+ * The export of xp_nofault_PIOR needs to happen here since it is defined
+ * in drivers/misc/sgi-xp/xp_nofault.S. The target of the nofault read is
+ * defined here.
*/
-u64 xp_nofault_PIOR_target;
+EXPORT_SYMBOL_GPL(xp_nofault_PIOR);
+u64 xp_nofault_PIOR_target;
+EXPORT_SYMBOL_GPL(xp_nofault_PIOR_target);
/*
* xpc_registrations[] keeps track of xpc_connect()'s done by the kernel-level
* users of XPC.
*/
struct xpc_registration xpc_registrations[XPC_NCHANNELS];
-
+EXPORT_SYMBOL_GPL(xpc_registrations);
/*
* Initialize the XPC interface to indicate that XPC isn't loaded.
*/
-static enum xpc_retval xpc_notloaded(void) { return xpcNotLoaded; }
+static enum xp_retval
+xpc_notloaded(void)
+{
+ return xpNotLoaded;
+}
struct xpc_interface xpc_interface = {
- (void (*)(int)) xpc_notloaded,
- (void (*)(int)) xpc_notloaded,
- (enum xpc_retval (*)(partid_t, int, u32, void **)) xpc_notloaded,
- (enum xpc_retval (*)(partid_t, int, void *)) xpc_notloaded,
- (enum xpc_retval (*)(partid_t, int, void *, xpc_notify_func, void *))
- xpc_notloaded,
- (void (*)(partid_t, int, void *)) xpc_notloaded,
- (enum xpc_retval (*)(partid_t, void *)) xpc_notloaded
+ (void (*)(int))xpc_notloaded,
+ (void (*)(int))xpc_notloaded,
+ (enum xp_retval(*)(short, int, u32, void **))xpc_notloaded,
+ (enum xp_retval(*)(short, int, void *))xpc_notloaded,
+ (enum xp_retval(*)(short, int, void *, xpc_notify_func, void *))
+ xpc_notloaded,
+ (void (*)(short, int, void *))xpc_notloaded,
+ (enum xp_retval(*)(short, void *))xpc_notloaded
};
-
+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 xpc_retval (*allocate)(partid_t, int, u32, void **),
- enum xpc_retval (*send)(partid_t, int, void *),
- enum xpc_retval (*send_notify)(partid_t, int, void *,
- xpc_notify_func, void *),
- void (*received)(partid_t, int, void *),
- enum xpc_retval (*partid_to_nasids)(partid_t, void *))
+xpc_set_interface(void (*connect) (int),
+ void (*disconnect) (int),
+ enum xp_retval (*allocate) (short, int, u32, void **),
+ enum xp_retval (*send) (short, int, void *),
+ enum xp_retval (*send_notify) (short, int, void *,
+ 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.received = received;
xpc_interface.partid_to_nasids = partid_to_nasids;
}
-
+EXPORT_SYMBOL_GPL(xpc_set_interface);
/*
* XPC calls this when it (the XPC module) is being unloaded.
void
xpc_clear_interface(void)
{
- xpc_interface.connect = (void (*)(int)) xpc_notloaded;
- xpc_interface.disconnect = (void (*)(int)) xpc_notloaded;
- xpc_interface.allocate = (enum xpc_retval (*)(partid_t, int, u32,
- void **)) xpc_notloaded;
- xpc_interface.send = (enum xpc_retval (*)(partid_t, int, void *))
- xpc_notloaded;
- xpc_interface.send_notify = (enum xpc_retval (*)(partid_t, int, void *,
- xpc_notify_func, void *)) xpc_notloaded;
- xpc_interface.received = (void (*)(partid_t, int, void *))
- xpc_notloaded;
- xpc_interface.partid_to_nasids = (enum xpc_retval (*)(partid_t, void *))
- xpc_notloaded;
+ xpc_interface.connect = (void (*)(int))xpc_notloaded;
+ xpc_interface.disconnect = (void (*)(int))xpc_notloaded;
+ xpc_interface.allocate = (enum xp_retval(*)(short, int, u32,
+ void **))xpc_notloaded;
+ xpc_interface.send = (enum xp_retval(*)(short, int, void *))
+ xpc_notloaded;
+ xpc_interface.send_notify = (enum xp_retval(*)(short, int, void *,
+ xpc_notify_func,
+ void *))xpc_notloaded;
+ xpc_interface.received = (void (*)(short, int, void *))
+ xpc_notloaded;
+ xpc_interface.partid_to_nasids = (enum xp_retval(*)(short, void *))
+ xpc_notloaded;
}
-
+EXPORT_SYMBOL_GPL(xpc_clear_interface);
/*
* Register for automatic establishment of a channel connection whenever
* nentries - max #of XPC message entries a message queue can contain.
* The actual number, which is determined when a connection
* is established and may be less then requested, will be
- * passed to the user via the xpcConnected callout.
+ * passed to the user via the xpConnected callout.
* assigned_limit - max number of kthreads allowed to be processing
* messages (per connection) at any given instant.
* idle_limit - max number of kthreads allowed to be idle at any given
* instant.
*/
-enum xpc_retval
+enum xp_retval
xpc_connect(int ch_number, xpc_channel_func func, void *key, u16 payload_size,
- u16 nentries, u32 assigned_limit, u32 idle_limit)
+ u16 nentries, u32 assigned_limit, u32 idle_limit)
{
struct xpc_registration *registration;
-
DBUG_ON(ch_number < 0 || ch_number >= XPC_NCHANNELS);
DBUG_ON(payload_size == 0 || nentries == 0);
DBUG_ON(func == NULL);
registration = &xpc_registrations[ch_number];
- if (mutex_lock_interruptible(®istration->mutex) != 0) {
- return xpcInterrupted;
- }
+ if (mutex_lock_interruptible(®istration->mutex) != 0)
+ return xpInterrupted;
/* if XPC_CHANNEL_REGISTERED(ch_number) */
if (registration->func != NULL) {
mutex_unlock(®istration->mutex);
- return xpcAlreadyRegistered;
+ return xpAlreadyRegistered;
}
/* register the channel for connection */
xpc_interface.connect(ch_number);
- return xpcSuccess;
+ return xpSuccess;
}
-
+EXPORT_SYMBOL_GPL(xpc_connect);
/*
* Remove the registration for automatic connection of the specified channel
{
struct xpc_registration *registration;
-
DBUG_ON(ch_number < 0 || ch_number >= XPC_NCHANNELS);
registration = &xpc_registrations[ch_number];
return;
}
-
+EXPORT_SYMBOL_GPL(xpc_disconnect);
int __init
xp_init(void)
{
int ret, ch_number;
- u64 func_addr = *(u64 *) xp_nofault_PIOR;
- u64 err_func_addr = *(u64 *) xp_error_PIOR;
+ u64 func_addr = *(u64 *)xp_nofault_PIOR;
+ u64 err_func_addr = *(u64 *)xp_error_PIOR;
-
- if (!ia64_platform_is("sn2")) {
+ if (!ia64_platform_is("sn2"))
return -ENODEV;
- }
/*
* Register a nofault code region which performs a cross-partition
* least some CPUs on Shubs <= v1.2, which unfortunately we have to
* work around).
*/
- if ((ret = sn_register_nofault_code(func_addr, err_func_addr,
- err_func_addr, 1, 1)) != 0) {
+ ret = sn_register_nofault_code(func_addr, err_func_addr, err_func_addr,
+ 1, 1);
+ if (ret != 0) {
printk(KERN_ERR "XP: can't register nofault code, error=%d\n",
- ret);
+ ret);
}
/*
* Setup the nofault PIO read target. (There is no special reason why
* SH_IPI_ACCESS was selected.)
*/
- if (is_shub2()) {
+ if (is_shub2())
xp_nofault_PIOR_target = SH2_IPI_ACCESS0;
- } else {
+ else
xp_nofault_PIOR_target = SH1_IPI_ACCESS;
- }
/* initialize the connection registration mutex */
- for (ch_number = 0; ch_number < XPC_NCHANNELS; ch_number++) {
+ for (ch_number = 0; ch_number < XPC_NCHANNELS; ch_number++)
mutex_init(&xpc_registrations[ch_number].mutex);
- }
return 0;
}
-module_init(xp_init);
+module_init(xp_init);
void __exit
xp_exit(void)
{
- u64 func_addr = *(u64 *) xp_nofault_PIOR;
- u64 err_func_addr = *(u64 *) xp_error_PIOR;
-
+ u64 func_addr = *(u64 *)xp_nofault_PIOR;
+ u64 err_func_addr = *(u64 *)xp_error_PIOR;
/* unregister the PIO read nofault code region */
- (void) sn_register_nofault_code(func_addr, err_func_addr,
- err_func_addr, 1, 0);
+ (void)sn_register_nofault_code(func_addr, err_func_addr,
+ err_func_addr, 1, 0);
}
-module_exit(xp_exit);
+module_exit(xp_exit);
MODULE_AUTHOR("Silicon Graphics, Inc.");
MODULE_DESCRIPTION("Cross Partition (XP) base");
MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(xp_nofault_PIOR);
-EXPORT_SYMBOL(xp_nofault_PIOR_target);
-EXPORT_SYMBOL(xpc_registrations);
-EXPORT_SYMBOL(xpc_interface);
-EXPORT_SYMBOL(xpc_clear_interface);
-EXPORT_SYMBOL(xpc_set_interface);
-EXPORT_SYMBOL(xpc_connect);
-EXPORT_SYMBOL(xpc_disconnect);
-
projects / linux-2.6 / blobdiff