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-rw-r--r--arch/ia64/Kconfig5
-rw-r--r--arch/ia64/kernel/irq.c39
2 files changed, 6 insertions, 38 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 3deced637f07..17b5dbf8c311 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -434,6 +434,11 @@ config GENERIC_IRQ_PROBE
434 bool 434 bool
435 default y 435 default y
436 436
437config GENERIC_PENDING_IRQ
438 bool
439 depends on GENERIC_HARDIRQS && SMP
440 default y
441
437source "arch/ia64/hp/sim/Kconfig" 442source "arch/ia64/hp/sim/Kconfig"
438 443
439source "arch/ia64/oprofile/Kconfig" 444source "arch/ia64/oprofile/Kconfig"
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index 28f2aadc38d0..205d98028261 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -91,23 +91,8 @@ skip:
91} 91}
92 92
93#ifdef CONFIG_SMP 93#ifdef CONFIG_SMP
94/*
95 * This is updated when the user sets irq affinity via /proc
96 */
97static cpumask_t __cacheline_aligned pending_irq_cpumask[NR_IRQS];
98static unsigned long pending_irq_redir[BITS_TO_LONGS(NR_IRQS)];
99
100static char irq_redir [NR_IRQS]; // = { [0 ... NR_IRQS-1] = 1 }; 94static char irq_redir [NR_IRQS]; // = { [0 ... NR_IRQS-1] = 1 };
101 95
102/*
103 * Arch specific routine for deferred write to iosapic rte to reprogram
104 * intr destination.
105 */
106void proc_set_irq_affinity(unsigned int irq, cpumask_t mask_val)
107{
108 pending_irq_cpumask[irq] = mask_val;
109}
110
111void set_irq_affinity_info (unsigned int irq, int hwid, int redir) 96void set_irq_affinity_info (unsigned int irq, int hwid, int redir)
112{ 97{
113 cpumask_t mask = CPU_MASK_NONE; 98 cpumask_t mask = CPU_MASK_NONE;
@@ -116,32 +101,10 @@ void set_irq_affinity_info (unsigned int irq, int hwid, int redir)
116 101
117 if (irq < NR_IRQS) { 102 if (irq < NR_IRQS) {
118 irq_affinity[irq] = mask; 103 irq_affinity[irq] = mask;
104 set_irq_info(irq, mask);
119 irq_redir[irq] = (char) (redir & 0xff); 105 irq_redir[irq] = (char) (redir & 0xff);
120 } 106 }
121} 107}
122
123
124void move_irq(int irq)
125{
126 /* note - we hold desc->lock */
127 cpumask_t tmp;
128 irq_desc_t *desc = irq_descp(irq);
129 int redir = test_bit(irq, pending_irq_redir);
130
131 if (unlikely(!desc->handler->set_affinity))
132 return;
133
134 if (!cpus_empty(pending_irq_cpumask[irq])) {
135 cpus_and(tmp, pending_irq_cpumask[irq], cpu_online_map);
136 if (unlikely(!cpus_empty(tmp))) {
137 desc->handler->set_affinity(irq | (redir ? IA64_IRQ_REDIRECTED : 0),
138 pending_irq_cpumask[irq]);
139 }
140 cpus_clear(pending_irq_cpumask[irq]);
141 }
142}
143
144
145#endif /* CONFIG_SMP */ 108#endif /* CONFIG_SMP */
146 109
147#ifdef CONFIG_HOTPLUG_CPU 110#ifdef CONFIG_HOTPLUG_CPU