#include <linux/module.h>
#include <linux/string.h>
#include <linux/bootmem.h>
+#include <linux/slab.h>
#include <asm/ptrace.h>
#include <asm/irq.h>
static DEFINE_SPINLOCK(irq_mapping_update_lock);
/* IRQ <-> VIRQ mapping. */
-static DEFINE_PER_CPU(int, virq_to_irq[NR_VIRQS]) = {[0 ... NR_VIRQS-1] = -1};
+static DEFINE_PER_CPU(int [NR_VIRQS], virq_to_irq) = {[0 ... NR_VIRQS-1] = -1};
/* IRQ <-> IPI mapping */
-static DEFINE_PER_CPU(int, ipi_to_irq[XEN_NR_IPIS]) = {[0 ... XEN_NR_IPIS-1] = -1};
+static DEFINE_PER_CPU(int [XEN_NR_IPIS], ipi_to_irq) = {[0 ... XEN_NR_IPIS-1] = -1};
/* Interrupt types. */
enum xen_irq_type {
bind_evtchn_to_cpu(evtchn, 0);
evtchn_to_irq[evtchn] = -1;
+ }
+
+ if (irq_info[irq].type != IRQT_UNBOUND) {
irq_info[irq] = mk_unbound_info();
dynamic_irq_cleanup(irq);
return IRQ_HANDLED;
}
+static DEFINE_PER_CPU(unsigned, xed_nesting_count);
+
/*
* Search the CPUs pending events bitmasks. For each one found, map
* the event number to an irq, and feed it into do_IRQ() for
struct pt_regs *old_regs = set_irq_regs(regs);
struct shared_info *s = HYPERVISOR_shared_info;
struct vcpu_info *vcpu_info = __get_cpu_var(xen_vcpu);
- static DEFINE_PER_CPU(unsigned, nesting_count);
unsigned count;
exit_idle();
vcpu_info->evtchn_upcall_pending = 0;
- if (__get_cpu_var(nesting_count)++)
+ if (__get_cpu_var(xed_nesting_count)++)
goto out;
#ifndef CONFIG_X86 /* No need for a barrier -- XCHG is a barrier on x86. */
int bit_idx = __ffs(pending_bits);
int port = (word_idx * BITS_PER_LONG) + bit_idx;
int irq = evtchn_to_irq[port];
+ struct irq_desc *desc;
- if (irq != -1)
- handle_irq(irq, regs);
+ if (irq != -1) {
+ desc = irq_to_desc(irq);
+ if (desc)
+ generic_handle_irq_desc(irq, desc);
+ }
}
}
BUG_ON(!irqs_disabled());
- count = __get_cpu_var(nesting_count);
- __get_cpu_var(nesting_count) = 0;
+ count = __get_cpu_var(xed_nesting_count);
+ __get_cpu_var(xed_nesting_count) = 0;
} while(count != 1);
out:
void __init xen_init_IRQ(void)
{
int i;
- size_t size = nr_cpu_ids * sizeof(struct cpu_evtchn_s);
- cpu_evtchn_mask_p = alloc_bootmem(size);
+ cpu_evtchn_mask_p = kcalloc(nr_cpu_ids, sizeof(struct cpu_evtchn_s),
+ GFP_KERNEL);
BUG_ON(cpu_evtchn_mask_p == NULL);
init_evtchn_cpu_bindings();