[08/12] Remove timer.c

Commit Message

Chris Lalancette Dec. 1, 2009, 2:36 p.m. UTC

None

Patch

diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
index 31a7035..8d9adf6 100644
--- a/arch/x86/kvm/Makefile
+++ b/arch/x86/kvm/Makefile
@@ -10,8 +10,7 @@  kvm-y			+= $(addprefix ../../../virt/kvm/, kvm_main.o ioapic.o \
 				assigned-dev.o)
 kvm-$(CONFIG_IOMMU_API)	+= $(addprefix ../../../virt/kvm/, iommu.o)
 
-kvm-y			+= x86.o mmu.o emulate.o i8259.o irq.o lapic.o \
-			   i8254.o timer.o
+kvm-y			+= x86.o mmu.o emulate.o i8259.o irq.o lapic.o i8254.o
 kvm-intel-y		+= vmx.o
 kvm-amd-y		+= svm.o
 
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index fab7440..dc6eff4 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -277,6 +277,30 @@  static struct kvm_timer_ops kpit_ops = {
 	.is_periodic = kpit_is_periodic,
 };
 
+static enum hrtimer_restart pit_timer_fn(struct hrtimer *data)
+{
+	struct kvm_timer *ktimer = container_of(data, struct kvm_timer, timer);
+	struct kvm *kvm = ktimer->kvm;
+
+	/*
+	 * There is a race window between reading and incrementing, but we do
+	 * not care about potentially losing timer events in the !reinject
+	 * case anyway.
+	 */
+	if (ktimer->reinject || !atomic_read(&ktimer->pending))
+		atomic_inc(&ktimer->pending);
+
+	if (waitqueue_active(&kvm->bsp_vcpu->wq))
+		wake_up_interruptible(&kvm->bsp_vcpu->wq);
+
+	if (ktimer->t_ops->is_periodic(ktimer)) {
+		hrtimer_add_expires_ns(&ktimer->timer, ktimer->period);
+		return HRTIMER_RESTART;
+	}
+	else
+		return HRTIMER_NORESTART;
+}
+
 static void create_pit_timer(struct kvm_kpit_state *ps, u32 val, int is_period)
 {
 	struct kvm_timer *pt = &ps->pit_timer;
@@ -291,10 +315,9 @@  static void create_pit_timer(struct kvm_kpit_state *ps, u32 val, int is_period)
 	pt->period = interval;
 	ps->is_periodic = is_period;
 
-	pt->timer.function = kvm_timer_fn;
+	pt->timer.function = pit_timer_fn;
 	pt->t_ops = &kpit_ops;
 	pt->kvm = ps->pit->kvm;
-	pt->vcpu = pt->kvm->bsp_vcpu;
 
 	atomic_set(&pt->pending, 0);
 	ps->irq_ack = 1;
diff --git a/arch/x86/kvm/kvm_timer.h b/arch/x86/kvm/kvm_timer.h
index 55c7524..fbd4acb 100644
--- a/arch/x86/kvm/kvm_timer.h
+++ b/arch/x86/kvm/kvm_timer.h
@@ -1,3 +1,5 @@ 
+#ifndef __KVM_TIMER_H
+#define __KVM_TIMER_H
 
 struct kvm_timer {
 	struct hrtimer timer;
@@ -13,6 +15,5 @@  struct kvm_timer_ops {
         bool (*is_periodic)(struct kvm_timer *);
 };
 
-
-enum hrtimer_restart kvm_timer_fn(struct hrtimer *data);
+#endif
 
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 44acf7c..0005409 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1040,6 +1040,37 @@  static const struct kvm_io_device_ops apic_mmio_ops = {
 	.write    = apic_mmio_write,
 };
 
+static enum hrtimer_restart lapic_timer_fn(struct hrtimer *data)
+{
+	struct kvm_timer *ktimer = container_of(data, struct kvm_timer, timer);
+	struct kvm_vcpu *vcpu;
+	struct kvm_lapic *lapic;
+
+	vcpu = ktimer->vcpu;
+	if (!vcpu)
+		return HRTIMER_NORESTART;
+
+	lapic = vcpu->arch.apic;
+
+	/*
+	 * There is a race window between reading and incrementing, but we do
+	 * not care about potentially losing timer events in the !reinject
+	 * case anyway.
+	 */
+	if (ktimer->reinject || !atomic_read(&ktimer->pending))
+		atomic_inc(&ktimer->pending);
+
+	if (waitqueue_active(&vcpu->wq))
+		wake_up_interruptible(&vcpu->wq);
+
+	if (ktimer->t_ops->is_periodic(ktimer)) {
+		hrtimer_add_expires_ns(&ktimer->timer, ktimer->period);
+		return HRTIMER_RESTART;
+	}
+	else
+		return HRTIMER_NORESTART;
+}
+
 int kvm_create_lapic(struct kvm_vcpu *vcpu)
 {
 	struct kvm_lapic *apic;
@@ -1065,7 +1096,7 @@  int kvm_create_lapic(struct kvm_vcpu *vcpu)
 
 	hrtimer_init(&apic->lapic_timer.timer, CLOCK_MONOTONIC,
 		     HRTIMER_MODE_ABS);
-	apic->lapic_timer.timer.function = kvm_timer_fn;
+	apic->lapic_timer.timer.function = lapic_timer_fn;
 	apic->lapic_timer.t_ops = &lapic_timer_ops;
 	apic->lapic_timer.kvm = vcpu->kvm;
 	apic->lapic_timer.vcpu = vcpu;
diff --git a/arch/x86/kvm/timer.c b/arch/x86/kvm/timer.c
deleted file mode 100644
index 72b5144..0000000
--- a/arch/x86/kvm/timer.c
+++ /dev/null
@@ -1,47 +0,0 @@ 
-#include <linux/kvm_host.h>
-#include <linux/kvm.h>
-#include <linux/hrtimer.h>
-#include <asm/atomic.h>
-#include "kvm_timer.h"
-
-static int __kvm_timer_fn(struct kvm_vcpu *vcpu, struct kvm_timer *ktimer)
-{
-	int restart_timer = 0;
-	wait_queue_head_t *q = &vcpu->wq;
-
-	/*
-	 * There is a race window between reading and incrementing, but we do
-	 * not care about potentially loosing timer events in the !reinject
-	 * case anyway.
-	 */
-	if (ktimer->reinject || !atomic_read(&ktimer->pending))
-		atomic_inc(&ktimer->pending);
-
-	if (waitqueue_active(q))
-		wake_up_interruptible(q);
-
-	if (ktimer->t_ops->is_periodic(ktimer)) {
-		hrtimer_add_expires_ns(&ktimer->timer, ktimer->period);
-		restart_timer = 1;
-	}
-
-	return restart_timer;
-}
-
-enum hrtimer_restart kvm_timer_fn(struct hrtimer *data)
-{
-	int restart_timer;
-	struct kvm_vcpu *vcpu;
-	struct kvm_timer *ktimer = container_of(data, struct kvm_timer, timer);
-
-	vcpu = ktimer->vcpu;
-	if (!vcpu)
-		return HRTIMER_NORESTART;
-
-	restart_timer = __kvm_timer_fn(vcpu, ktimer);
-	if (restart_timer)
-		return HRTIMER_RESTART;
-	else
-		return HRTIMER_NORESTART;
-}
-