1 files changed, 0 insertions, 133 deletions
diff --git a/ANDROID_3.4.5/arch/x86/xen/irq.c b/ANDROID_3.4.5/arch/x86/xen/irq.c
deleted file mode 100644
index 15733765..00000000
--- a/ANDROID_3.4.5/arch/x86/xen/irq.c
+++ /dev/null
@@ -1,133 +0,0 @@
-#include <linux/hardirq.h>
-
-#include <asm/x86_init.h>
-
-#include <xen/interface/xen.h>
-#include <xen/interface/sched.h>
-#include <xen/interface/vcpu.h>
-
-#include <asm/xen/hypercall.h>
-#include <asm/xen/hypervisor.h>
-
-#include "xen-ops.h"
-
-/*
- * Force a proper event-channel callback from Xen after clearing the
- * callback mask. We do this in a very simple manner, by making a call
- * down into Xen. The pending flag will be checked by Xen on return.
- */
-void xen_force_evtchn_callback(void)
-{
-	(void)HYPERVISOR_xen_version(0, NULL);
-}
-
-static unsigned long xen_save_fl(void)
-{
-	struct vcpu_info *vcpu;
-	unsigned long flags;
-
-	vcpu = this_cpu_read(xen_vcpu);
-
-	/* flag has opposite sense of mask */
-	flags = !vcpu->evtchn_upcall_mask;
-
-	/* convert to IF type flag
-	   -0 -> 0x00000000
-	   -1 -> 0xffffffff
-	*/
-	return (-flags) & X86_EFLAGS_IF;
-}
-PV_CALLEE_SAVE_REGS_THUNK(xen_save_fl);
-
-static void xen_restore_fl(unsigned long flags)
-{
-	struct vcpu_info *vcpu;
-
-	/* convert from IF type flag */
-	flags = !(flags & X86_EFLAGS_IF);
-
-	/* There's a one instruction preempt window here.  We need to
-	   make sure we're don't switch CPUs between getting the vcpu
-	   pointer and updating the mask. */
-	preempt_disable();
-	vcpu = this_cpu_read(xen_vcpu);
-	vcpu->evtchn_upcall_mask = flags;
-	preempt_enable_no_resched();
-
-	/* Doesn't matter if we get preempted here, because any
-	   pending event will get dealt with anyway. */
-
-	if (flags == 0) {
-		preempt_check_resched();
-		barrier(); /* unmask then check (avoid races) */
-		if (unlikely(vcpu->evtchn_upcall_pending))
-			xen_force_evtchn_callback();
-	}
-}
-PV_CALLEE_SAVE_REGS_THUNK(xen_restore_fl);
-
-static void xen_irq_disable(void)
-{
-	/* There's a one instruction preempt window here.  We need to
-	   make sure we're don't switch CPUs between getting the vcpu
-	   pointer and updating the mask. */
-	preempt_disable();
-	this_cpu_read(xen_vcpu)->evtchn_upcall_mask = 1;
-	preempt_enable_no_resched();
-}
-PV_CALLEE_SAVE_REGS_THUNK(xen_irq_disable);
-
-static void xen_irq_enable(void)
-{
-	struct vcpu_info *vcpu;
-
-	/* We don't need to worry about being preempted here, since
-	   either a) interrupts are disabled, so no preemption, or b)
-	   the caller is confused and is trying to re-enable interrupts
-	   on an indeterminate processor. */
-
-	vcpu = this_cpu_read(xen_vcpu);
-	vcpu->evtchn_upcall_mask = 0;
-
-	/* Doesn't matter if we get preempted here, because any
-	   pending event will get dealt with anyway. */
-
-	barrier(); /* unmask then check (avoid races) */
-	if (unlikely(vcpu->evtchn_upcall_pending))
-		xen_force_evtchn_callback();
-}
-PV_CALLEE_SAVE_REGS_THUNK(xen_irq_enable);
-
-static void xen_safe_halt(void)
-{
-	/* Blocking includes an implicit local_irq_enable(). */
-	if (HYPERVISOR_sched_op(SCHEDOP_block, NULL) != 0)
-		BUG();
-}
-
-static void xen_halt(void)
-{
-	if (irqs_disabled())
-		HYPERVISOR_vcpu_op(VCPUOP_down, smp_processor_id(), NULL);
-	else
-		xen_safe_halt();
-}
-
-static const struct pv_irq_ops xen_irq_ops __initconst = {
-	.save_fl = PV_CALLEE_SAVE(xen_save_fl),
-	.restore_fl = PV_CALLEE_SAVE(xen_restore_fl),
-	.irq_disable = PV_CALLEE_SAVE(xen_irq_disable),
-	.irq_enable = PV_CALLEE_SAVE(xen_irq_enable),
-
-	.safe_halt = xen_safe_halt,
-	.halt = xen_halt,
-#ifdef CONFIG_X86_64
-	.adjust_exception_frame = xen_adjust_exception_frame,
-#endif
-};
-
-void __init xen_init_irq_ops(void)
-{
-	pv_irq_ops = xen_irq_ops;
-	x86_init.irqs.intr_init = xen_init_IRQ;
-}