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[linux-2.6.git] / arch / ppc / syslib / open_pic.c
index a19f8c2..e39c88f 100644 (file)
@@ -64,14 +64,14 @@ static irqreturn_t openpic_ipi_action(int cpl, void *dev_id, struct pt_regs *);
 
 /* Timer Interrupts */
 static void openpic_inittimer(u_int timer, u_int pri, u_int vector);
-static void openpic_maptimer(u_int timer, cpumask_t cpumask);
+static void openpic_maptimer(u_int timer, u_int cpumask);
 
 /* Interrupt Sources */
 static void openpic_enable_irq(u_int irq);
 static void openpic_disable_irq(u_int irq);
 static void openpic_initirq(u_int irq, u_int pri, u_int vector, int polarity,
                            int is_level);
-static void openpic_mapirq(u_int irq, cpumask_t cpumask, cpumask_t keepmask);
+static void openpic_mapirq(u_int irq, u_int cpumask, u_int keepmask);
 
 /*
  * These functions are not used but the code is kept here
@@ -89,15 +89,17 @@ static void openpic_set_sense(u_int irq, int sense);
  */
 static void openpic_end_irq(unsigned int irq_nr);
 static void openpic_ack_irq(unsigned int irq_nr);
-static void openpic_set_affinity(unsigned int irq_nr, cpumask_t cpumask);
+static void openpic_set_affinity(unsigned int irq_nr, unsigned long cpumask);
 
 struct hw_interrupt_type open_pic = {
-       .typename       = " OpenPIC  ",
-       .enable         = openpic_enable_irq,
-       .disable        = openpic_disable_irq,
-       .ack            = openpic_ack_irq,
-       .end            = openpic_end_irq,
-       .set_affinity   = openpic_set_affinity,
+       " OpenPIC  ",
+       NULL,
+       NULL,
+       openpic_enable_irq,
+       openpic_disable_irq,
+       openpic_ack_irq,
+       openpic_end_irq,
+       openpic_set_affinity
 };
 
 #ifdef CONFIG_SMP
@@ -107,11 +109,14 @@ static void openpic_enable_ipi(unsigned int irq_nr);
 static void openpic_disable_ipi(unsigned int irq_nr);
 
 struct hw_interrupt_type open_pic_ipi = {
-       .typename       = " OpenPIC  ",
-       .enable         = openpic_enable_ipi,
-       .disable        = openpic_disable_ipi,
-       .ack            = openpic_ack_ipi,
-       .end            = openpic_end_ipi,
+       " OpenPIC  ",
+       NULL,
+       NULL,
+       openpic_enable_ipi,
+       openpic_disable_ipi,
+       openpic_ack_ipi,
+       openpic_end_ipi,
+       0
 };
 #endif /* CONFIG_SMP */
 
@@ -363,7 +368,7 @@ void __init openpic_init(int offset)
                /* Disabled, Priority 0 */
                openpic_inittimer(i, 0, OPENPIC_VEC_TIMER+i+offset);
                /* No processor */
-               openpic_maptimer(i, CPU_MASK_NONE);
+               openpic_maptimer(i, 0);
        }
 
 #ifdef CONFIG_SMP
@@ -403,7 +408,7 @@ void __init openpic_init(int offset)
                openpic_initirq(i, 8, i+offset, (sense & IRQ_POLARITY_MASK),
                                (sense & IRQ_SENSE_MASK));
                /* Processor 0 */
-               openpic_mapirq(i, CPU_MASK_CPU0, CPU_MASK_NONE);
+               openpic_mapirq(i, 1<<0, 0);
        }
 
        /* Init descriptors */
@@ -504,17 +509,14 @@ static void openpic_set_spurious(u_int vec)
 /*
  * Convert a cpu mask from logical to physical cpu numbers.
  */
-static inline cpumask_t physmask(cpumask_t cpumask)
+static inline u32 physmask(u32 cpumask)
 {
        int i;
-       cpumask_t mask = CPU_MASK_NONE;
-
-       cpus_and(cpumask, cpu_online_map, cpumask);
-
-       for (i = 0; i < NR_CPUS; i++)
-               if (cpu_isset(i, cpumask))
-                       cpu_set(smp_hw_index[i], mask);
+       u32 mask = 0;
 
+       for (i = 0; i < NR_CPUS; ++i, cpumask >>= 1)
+               if (cpu_online(i))
+                       mask |= (cpumask & 1) << smp_hw_index[i];
        return mask;
 }
 #else
@@ -554,16 +556,14 @@ static void __init openpic_initipi(u_int ipi, u_int pri, u_int vec)
  *  Externally called, however, it takes an IPI number (0...OPENPIC_NUM_IPI)
  *  and not a system-wide interrupt number
  */
-void openpic_cause_IPI(u_int ipi, cpumask_t cpumask)
+void openpic_cause_IPI(u_int ipi, u_int cpumask)
 {
-       cpumask_t phys;
        DECL_THIS_CPU;
 
        CHECK_THIS_CPU;
        check_arg_ipi(ipi);
-       phys = physmask(cpumask);
        openpic_write(&OpenPIC->THIS_CPU.IPI_Dispatch(ipi),
-                     cpus_addr(physmask(cpumask))[0]);
+                     physmask(cpumask));
 }
 
 void openpic_request_IPIs(void)
@@ -581,16 +581,16 @@ void openpic_request_IPIs(void)
        /* IPIs are marked SA_INTERRUPT as they must run with irqs disabled */
        request_irq(OPENPIC_VEC_IPI+open_pic_irq_offset,
                    openpic_ipi_action, SA_INTERRUPT,
-                   "IPI0 (call function)", NULL);
+                   "IPI0 (call function)", 0);
        request_irq(OPENPIC_VEC_IPI+open_pic_irq_offset+1,
                    openpic_ipi_action, SA_INTERRUPT,
-                   "IPI1 (reschedule)", NULL);
+                   "IPI1 (reschedule)", 0);
        request_irq(OPENPIC_VEC_IPI+open_pic_irq_offset+2,
                    openpic_ipi_action, SA_INTERRUPT,
-                   "IPI2 (invalidate tlb)", NULL);
+                   "IPI2 (invalidate tlb)", 0);
        request_irq(OPENPIC_VEC_IPI+open_pic_irq_offset+3,
                    openpic_ipi_action, SA_INTERRUPT,
-                   "IPI3 (xmon break)", NULL);
+                   "IPI3 (xmon break)", 0);
 
        for ( i = 0; i < OPENPIC_NUM_IPI ; i++ )
                openpic_enable_ipi(OPENPIC_VEC_IPI+open_pic_irq_offset+i);
@@ -607,12 +607,12 @@ void __devinit do_openpic_setup_cpu(void)
 {
 #ifdef CONFIG_IRQ_ALL_CPUS
        int i;
-       cpumask_t msk = CPU_MASK_NONE;
+       u32 msk;
 #endif
        spin_lock(&openpic_setup_lock);
 
 #ifdef CONFIG_IRQ_ALL_CPUS
-       cpu_set(smp_hw_index[smp_processor_id()], msk);
+       msk = 1 << smp_hw_index[smp_processor_id()];
 
        /* let the openpic know we want intrs. default affinity
         * is 0xffffffff until changed via /proc
@@ -621,7 +621,7 @@ void __devinit do_openpic_setup_cpu(void)
         * in irq.c.
         */
        for (i = 0; i < NumSources; i++)
-               openpic_mapirq(i, msk, CPU_MASK_ALL);
+               openpic_mapirq(i, msk, ~0U);
 #endif /* CONFIG_IRQ_ALL_CPUS */
        openpic_set_priority(0);
 
@@ -649,12 +649,11 @@ static void __init openpic_inittimer(u_int timer, u_int pri, u_int vec)
 /*
  *  Map a timer interrupt to one or more CPUs
  */
-static void __init openpic_maptimer(u_int timer, cpumask_t cpumask)
+static void __init openpic_maptimer(u_int timer, u_int cpumask)
 {
-       cpumask_t phys = physmask(cpumask);
        check_arg_timer(timer);
        openpic_write(&OpenPIC->Global.Timer[timer].Destination,
-                     cpus_addr(phys)[0]);
+                     physmask(cpumask));
 }
 
 /*
@@ -771,16 +770,13 @@ openpic_initirq(u_int irq, u_int pri, u_int vec, int pol, int sense)
 /*
  *  Map an interrupt source to one or more CPUs
  */
-static void openpic_mapirq(u_int irq, cpumask_t physmask, cpumask_t keepmask)
+static void openpic_mapirq(u_int irq, u_int physmask, u_int keepmask)
 {
        if (ISR[irq] == 0)
                return;
-       if (!cpus_empty(keepmask)) {
-               cpumask_t irqdest = { .bits[0] = openpic_read(&ISR[irq]->Destination) };
-               cpus_and(irqdest, irqdest, keepmask);
-               cpus_or(physmask, physmask, irqdest);
-       }
-       openpic_write(&ISR[irq]->Destination, cpus_addr(physmask)[0]);
+       if (keepmask != 0)
+               physmask |= openpic_read(&ISR[irq]->Destination) & keepmask;
+       openpic_write(&ISR[irq]->Destination, physmask);
 }
 
 #ifdef notused
@@ -824,9 +820,9 @@ static void openpic_end_irq(unsigned int irq_nr)
 #endif
 }
 
-static void openpic_set_affinity(unsigned int irq_nr, cpumask_t cpumask)
+static void openpic_set_affinity(unsigned int irq_nr, unsigned long cpumask)
 {
-       openpic_mapirq(irq_nr - open_pic_irq_offset, physmask(cpumask), CPU_MASK_NONE);
+       openpic_mapirq(irq_nr - open_pic_irq_offset, physmask(cpumask), 0);
 }
 
 #ifdef CONFIG_SMP
@@ -874,7 +870,6 @@ openpic_get_irq(struct pt_regs *regs)
 void
 smp_openpic_message_pass(int target, int msg, unsigned long data, int wait)
 {
-       cpumask_t mask = CPU_MASK_ALL;
        /* make sure we're sending something that translates to an IPI */
        if (msg > 0x3) {
                printk("SMP %d: smp_message_pass: unknown msg %d\n",
@@ -883,14 +878,14 @@ smp_openpic_message_pass(int target, int msg, unsigned long data, int wait)
        }
        switch (target) {
        case MSG_ALL:
-               openpic_cause_IPI(msg, mask);
+               openpic_cause_IPI(msg, 0xffffffff);
                break;
        case MSG_ALL_BUT_SELF:
-               cpu_clear(smp_processor_id(), mask);
-               openpic_cause_IPI(msg, mask);
+               openpic_cause_IPI(msg,
+                                 0xffffffff & ~(1 << smp_processor_id()));
                break;
        default:
-               openpic_cause_IPI(msg, cpumask_of_cpu(target));
+               openpic_cause_IPI(msg, 1<<target);
                break;
        }
 }