Commit 1a245866 authored by Corey Minyard's avatar Corey Minyard Committed by Linus Torvalds
Browse files

[PATCH] IPMI: remove high res timer code



There was some old high-res-timer code in the IPMI driver that is dead.
Remove it.
Signed-off-by: default avatarCorey Minyard <minyard@acm.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 409035e0
......@@ -55,23 +55,6 @@
#include <linux/mutex.h>
#include <linux/kthread.h>
#include <asm/irq.h>
#ifdef CONFIG_HIGH_RES_TIMERS
#include <linux/hrtime.h>
# if defined(schedule_next_int)
/* Old high-res timer code, do translations. */
# define get_arch_cycles(a) quick_update_jiffies_sub(a)
# define arch_cycles_per_jiffy cycles_per_jiffies
# endif
static inline void add_usec_to_timer(struct timer_list *t, long v)
{
t->arch_cycle_expires += nsec_to_arch_cycle(v * 1000);
while (t->arch_cycle_expires >= arch_cycles_per_jiffy)
{
t->expires++;
t->arch_cycle_expires -= arch_cycles_per_jiffy;
}
}
#endif
#include <linux/interrupt.h>
#include <linux/rcupdate.h>
#include <linux/ipmi_smi.h>
......@@ -243,8 +226,6 @@ static int register_xaction_notifier(struct notifier_block * nb)
return atomic_notifier_chain_register(&xaction_notifier_list, nb);
}
static void si_restart_short_timer(struct smi_info *smi_info);
static void deliver_recv_msg(struct smi_info *smi_info,
struct ipmi_smi_msg *msg)
{
......@@ -768,7 +749,6 @@ static void sender(void *send_info,
&& (smi_info->curr_msg == NULL))
{
start_next_msg(smi_info);
si_restart_short_timer(smi_info);
}
spin_unlock_irqrestore(&(smi_info->si_lock), flags);
}
......@@ -833,37 +813,6 @@ static void request_events(void *send_info)
static int initialized = 0;
/* Must be called with interrupts off and with the si_lock held. */
static void si_restart_short_timer(struct smi_info *smi_info)
{
#if defined(CONFIG_HIGH_RES_TIMERS)
unsigned long flags;
unsigned long jiffies_now;
unsigned long seq;
if (del_timer(&(smi_info->si_timer))) {
/* If we don't delete the timer, then it will go off
immediately, anyway. So we only process if we
actually delete the timer. */
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
jiffies_now = jiffies;
smi_info->si_timer.expires = jiffies_now;
smi_info->si_timer.arch_cycle_expires
= get_arch_cycles(jiffies_now);
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
add_usec_to_timer(&smi_info->si_timer, SI_SHORT_TIMEOUT_USEC);
add_timer(&(smi_info->si_timer));
spin_lock_irqsave(&smi_info->count_lock, flags);
smi_info->timeout_restarts++;
spin_unlock_irqrestore(&smi_info->count_lock, flags);
}
#endif
}
static void smi_timeout(unsigned long data)
{
struct smi_info *smi_info = (struct smi_info *) data;
......@@ -904,31 +853,15 @@ static void smi_timeout(unsigned long data)
/* If the state machine asks for a short delay, then shorten
the timer timeout. */
if (smi_result == SI_SM_CALL_WITH_DELAY) {
#if defined(CONFIG_HIGH_RES_TIMERS)
unsigned long seq;
#endif
spin_lock_irqsave(&smi_info->count_lock, flags);
smi_info->short_timeouts++;
spin_unlock_irqrestore(&smi_info->count_lock, flags);
#if defined(CONFIG_HIGH_RES_TIMERS)
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
smi_info->si_timer.expires = jiffies;
smi_info->si_timer.arch_cycle_expires
= get_arch_cycles(smi_info->si_timer.expires);
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
add_usec_to_timer(&smi_info->si_timer, SI_SHORT_TIMEOUT_USEC);
#else
smi_info->si_timer.expires = jiffies + 1;
#endif
} else {
spin_lock_irqsave(&smi_info->count_lock, flags);
smi_info->long_timeouts++;
spin_unlock_irqrestore(&smi_info->count_lock, flags);
smi_info->si_timer.expires = jiffies + SI_TIMEOUT_JIFFIES;
#if defined(CONFIG_HIGH_RES_TIMERS)
smi_info->si_timer.arch_cycle_expires = 0;
#endif
}
do_add_timer:
......
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