sgi-xp: enable building of XPC/XPNET on x86_64
Get XPC/XPNET to build on x86_64. Trying to modprobe them up on a non-UV
or sn2 system will result in a -ENODEV.
Signed-off-by: Dean Nelson <dcn@sgi.com>
Cc: Jack Steiner <steiner@sgi.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
index e7ff9e1..f7478cc 100644
--- a/drivers/misc/sgi-xp/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -43,19 +43,13 @@
*
*/
-#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/cache.h>
-#include <linux/interrupt.h>
+#include <linux/sysctl.h>
+#include <linux/device.h>
#include <linux/delay.h>
#include <linux/reboot.h>
-#include <linux/completion.h>
#include <linux/kdebug.h>
#include <linux/kthread.h>
-#include <linux/uaccess.h>
-#include <asm/sn/intr.h>
-#include <asm/sn/sn_sal.h>
#include "xpc.h"
/* define two XPC debug device structures to be used with dev_dbg() et al */
@@ -175,6 +169,8 @@
.notifier_call = xpc_system_die,
};
+enum xp_retval (*xpc_get_partition_rsvd_page_pa) (u64 buf, u64 *cookie,
+ u64 *paddr, size_t *len);
enum xp_retval (*xpc_rsvd_page_init) (struct xpc_rsvd_page *rp);
void (*xpc_heartbeat_init) (void);
void (*xpc_heartbeat_exit) (void);
@@ -920,7 +916,8 @@
struct xpc_partition *part;
short partid;
int any_engaged;
- long time, printmsg_time, disengage_timeout;
+ long keep_waiting;
+ long wait_to_print;
/* keep xpc_hb_checker thread from doing anything (just in case) */
xpc_exiting = 1;
@@ -937,16 +934,17 @@
}
}
- time = rtc_time();
- printmsg_time = time +
- (XPC_DEACTIVATE_PRINTMSG_INTERVAL * sn_rtc_cycles_per_second);
- disengage_timeout = time +
- (xpc_disengage_timelimit * sn_rtc_cycles_per_second);
-
/*
* Though we requested that all other partitions deactivate from us,
- * we only wait until they've all disengaged.
+ * we only wait until they've all disengaged or we've reached the
+ * defined timelimit.
+ *
+ * Given that one iteration through the following while-loop takes
+ * approximately 200 microseconds, calculate the #of loops to take
+ * before bailing and the #of loops before printing a waiting message.
*/
+ keep_waiting = xpc_disengage_timelimit * 1000 * 5;
+ wait_to_print = XPC_DEACTIVATE_PRINTMSG_INTERVAL * 1000 * 5;
while (1) {
any_engaged = xpc_any_partition_engaged();
@@ -955,8 +953,7 @@
break;
}
- time = rtc_time();
- if (time >= disengage_timeout) {
+ if (!keep_waiting--) {
for (partid = 0; partid < xp_max_npartitions;
partid++) {
if (xpc_partition_engaged(partid)) {
@@ -968,15 +965,15 @@
break;
}
- if (time >= printmsg_time) {
+ if (!wait_to_print--) {
dev_info(xpc_part, "waiting for remote partitions to "
"deactivate, timeout in %ld seconds\n",
- (disengage_timeout - time) /
- sn_rtc_cycles_per_second);
- printmsg_time = time +
- (XPC_DEACTIVATE_PRINTMSG_INTERVAL *
- sn_rtc_cycles_per_second);
+ keep_waiting / (1000 * 5));
+ wait_to_print = XPC_DEACTIVATE_PRINTMSG_INTERVAL *
+ 1000 * 5;
}
+
+ udelay(200);
}
}
@@ -991,6 +988,7 @@
static int
xpc_system_die(struct notifier_block *nb, unsigned long event, void *unused)
{
+#ifdef CONFIG_IA64 /* !!! temporary kludge */
switch (event) {
case DIE_MACHINE_RESTART:
case DIE_MACHINE_HALT:
@@ -1019,6 +1017,9 @@
xpc_online_heartbeat();
break;
}
+#else
+ xpc_die_deactivate();
+#endif
return NOTIFY_DONE;
}