diff options
Diffstat (limited to 'drivers/misc/sgi-xp/xpc_main.c')
| -rw-r--r-- | drivers/misc/sgi-xp/xpc_main.c | 49 |
1 files changed, 25 insertions, 24 deletions
diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c index e7ff9e1670f6..f7478cc3572d 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 @@ static struct notifier_block xpc_die_notifier = { .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 @@ xpc_die_deactivate(void) 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 @@ xpc_die_deactivate(void) } } - 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 @@ xpc_die_deactivate(void) 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 @@ xpc_die_deactivate(void) 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 @@ xpc_die_deactivate(void) 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_system_die(struct notifier_block *nb, unsigned long event, void *unused) xpc_online_heartbeat(); break; } +#else + xpc_die_deactivate(); +#endif return NOTIFY_DONE; } |