x86: UV: raw_spinlock conversion
Shrug. Lots of hobbyists have a beast in their basement, right? Cc: stable-rt@vger.kernel.org Signed-off-by: Mike Galbraith <mgalbraith@suse.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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@ -611,9 +611,9 @@ struct bau_control {
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cycles_t send_message;
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cycles_t period_end;
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cycles_t period_time;
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spinlock_t uvhub_lock;
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spinlock_t queue_lock;
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spinlock_t disable_lock;
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raw_spinlock_t uvhub_lock;
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raw_spinlock_t queue_lock;
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raw_spinlock_t disable_lock;
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/* tunables */
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int max_concurr;
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int max_concurr_const;
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@ -773,15 +773,15 @@ static inline int atom_asr(short i, struct atomic_short *v)
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* to be lowered below the current 'v'. atomic_add_unless can only stop
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* on equal.
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*/
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static inline int atomic_inc_unless_ge(spinlock_t *lock, atomic_t *v, int u)
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static inline int atomic_inc_unless_ge(raw_spinlock_t *lock, atomic_t *v, int u)
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{
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spin_lock(lock);
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raw_spin_lock(lock);
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if (atomic_read(v) >= u) {
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spin_unlock(lock);
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raw_spin_unlock(lock);
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return 0;
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}
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atomic_inc(v);
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spin_unlock(lock);
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raw_spin_unlock(lock);
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return 1;
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}
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@ -502,7 +502,7 @@ struct uv_blade_info {
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unsigned short nr_online_cpus;
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unsigned short pnode;
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short memory_nid;
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spinlock_t nmi_lock; /* obsolete, see uv_hub_nmi */
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raw_spinlock_t nmi_lock; /* obsolete, see uv_hub_nmi */
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unsigned long nmi_count; /* obsolete, see uv_hub_nmi */
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};
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extern struct uv_blade_info *uv_blade_info;
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@ -911,7 +911,7 @@ void __init uv_system_init(void)
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uv_blade_info[blade].pnode = pnode;
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uv_blade_info[blade].nr_possible_cpus = 0;
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uv_blade_info[blade].nr_online_cpus = 0;
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spin_lock_init(&uv_blade_info[blade].nmi_lock);
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raw_spin_lock_init(&uv_blade_info[blade].nmi_lock);
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min_pnode = min(pnode, min_pnode);
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max_pnode = max(pnode, max_pnode);
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blade++;
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@ -719,9 +719,9 @@ static void destination_plugged(struct bau_desc *bau_desc,
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quiesce_local_uvhub(hmaster);
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spin_lock(&hmaster->queue_lock);
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raw_spin_lock(&hmaster->queue_lock);
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reset_with_ipi(&bau_desc->distribution, bcp);
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spin_unlock(&hmaster->queue_lock);
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raw_spin_unlock(&hmaster->queue_lock);
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end_uvhub_quiesce(hmaster);
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@ -741,9 +741,9 @@ static void destination_timeout(struct bau_desc *bau_desc,
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quiesce_local_uvhub(hmaster);
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spin_lock(&hmaster->queue_lock);
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raw_spin_lock(&hmaster->queue_lock);
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reset_with_ipi(&bau_desc->distribution, bcp);
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spin_unlock(&hmaster->queue_lock);
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raw_spin_unlock(&hmaster->queue_lock);
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end_uvhub_quiesce(hmaster);
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@ -764,7 +764,7 @@ static void disable_for_period(struct bau_control *bcp, struct ptc_stats *stat)
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cycles_t tm1;
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hmaster = bcp->uvhub_master;
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spin_lock(&hmaster->disable_lock);
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raw_spin_lock(&hmaster->disable_lock);
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if (!bcp->baudisabled) {
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stat->s_bau_disabled++;
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tm1 = get_cycles();
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@ -777,7 +777,7 @@ static void disable_for_period(struct bau_control *bcp, struct ptc_stats *stat)
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}
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}
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}
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spin_unlock(&hmaster->disable_lock);
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raw_spin_unlock(&hmaster->disable_lock);
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}
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static void count_max_concurr(int stat, struct bau_control *bcp,
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@ -840,7 +840,7 @@ static void record_send_stats(cycles_t time1, cycles_t time2,
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*/
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static void uv1_throttle(struct bau_control *hmaster, struct ptc_stats *stat)
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{
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spinlock_t *lock = &hmaster->uvhub_lock;
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raw_spinlock_t *lock = &hmaster->uvhub_lock;
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atomic_t *v;
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v = &hmaster->active_descriptor_count;
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@ -972,7 +972,7 @@ static int check_enable(struct bau_control *bcp, struct ptc_stats *stat)
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struct bau_control *hmaster;
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hmaster = bcp->uvhub_master;
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spin_lock(&hmaster->disable_lock);
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raw_spin_lock(&hmaster->disable_lock);
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if (bcp->baudisabled && (get_cycles() >= bcp->set_bau_on_time)) {
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stat->s_bau_reenabled++;
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for_each_present_cpu(tcpu) {
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@ -984,10 +984,10 @@ static int check_enable(struct bau_control *bcp, struct ptc_stats *stat)
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tbcp->period_giveups = 0;
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}
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}
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spin_unlock(&hmaster->disable_lock);
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raw_spin_unlock(&hmaster->disable_lock);
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return 0;
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}
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spin_unlock(&hmaster->disable_lock);
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raw_spin_unlock(&hmaster->disable_lock);
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return -1;
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}
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@ -1895,9 +1895,9 @@ static void __init init_per_cpu_tunables(void)
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bcp->cong_reps = congested_reps;
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bcp->disabled_period = sec_2_cycles(disabled_period);
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bcp->giveup_limit = giveup_limit;
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spin_lock_init(&bcp->queue_lock);
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spin_lock_init(&bcp->uvhub_lock);
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spin_lock_init(&bcp->disable_lock);
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raw_spin_lock_init(&bcp->queue_lock);
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raw_spin_lock_init(&bcp->uvhub_lock);
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raw_spin_lock_init(&bcp->disable_lock);
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}
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}
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@ -58,7 +58,7 @@ static DEFINE_PER_CPU(struct clock_event_device, cpu_ced);
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/* There is one of these allocated per node */
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struct uv_rtc_timer_head {
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spinlock_t lock;
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raw_spinlock_t lock;
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/* next cpu waiting for timer, local node relative: */
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int next_cpu;
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/* number of cpus on this node: */
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@ -178,7 +178,7 @@ static __init int uv_rtc_allocate_timers(void)
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uv_rtc_deallocate_timers();
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return -ENOMEM;
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}
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spin_lock_init(&head->lock);
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raw_spin_lock_init(&head->lock);
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head->ncpus = uv_blade_nr_possible_cpus(bid);
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head->next_cpu = -1;
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blade_info[bid] = head;
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@ -232,7 +232,7 @@ static int uv_rtc_set_timer(int cpu, u64 expires)
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unsigned long flags;
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int next_cpu;
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spin_lock_irqsave(&head->lock, flags);
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raw_spin_lock_irqsave(&head->lock, flags);
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next_cpu = head->next_cpu;
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*t = expires;
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@ -244,12 +244,12 @@ static int uv_rtc_set_timer(int cpu, u64 expires)
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if (uv_setup_intr(cpu, expires)) {
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*t = ULLONG_MAX;
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uv_rtc_find_next_timer(head, pnode);
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spin_unlock_irqrestore(&head->lock, flags);
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raw_spin_unlock_irqrestore(&head->lock, flags);
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return -ETIME;
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}
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}
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spin_unlock_irqrestore(&head->lock, flags);
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raw_spin_unlock_irqrestore(&head->lock, flags);
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return 0;
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}
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@ -268,7 +268,7 @@ static int uv_rtc_unset_timer(int cpu, int force)
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unsigned long flags;
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int rc = 0;
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spin_lock_irqsave(&head->lock, flags);
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raw_spin_lock_irqsave(&head->lock, flags);
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if ((head->next_cpu == bcpu && uv_read_rtc(NULL) >= *t) || force)
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rc = 1;
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@ -280,7 +280,7 @@ static int uv_rtc_unset_timer(int cpu, int force)
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uv_rtc_find_next_timer(head, pnode);
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}
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spin_unlock_irqrestore(&head->lock, flags);
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raw_spin_unlock_irqrestore(&head->lock, flags);
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return rc;
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}
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@ -300,13 +300,18 @@ static int uv_rtc_unset_timer(int cpu, int force)
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static cycle_t uv_read_rtc(struct clocksource *cs)
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{
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unsigned long offset;
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cycle_t cycles;
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preempt_disable();
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if (uv_get_min_hub_revision_id() == 1)
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offset = 0;
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else
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offset = (uv_blade_processor_id() * L1_CACHE_BYTES) % PAGE_SIZE;
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return (cycle_t)uv_read_local_mmr(UVH_RTC | offset);
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cycles = (cycle_t)uv_read_local_mmr(UVH_RTC | offset);
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preempt_enable();
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return cycles;
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}
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/*
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