1 files changed, 0 insertions, 110 deletions
diff --git a/ANDROID_3.4.5/arch/x86/kernel/irq_64.c b/ANDROID_3.4.5/arch/x86/kernel/irq_64.c
deleted file mode 100644
index d04d3ecd..00000000
--- a/ANDROID_3.4.5/arch/x86/kernel/irq_64.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- *	Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar
- *
- * This file contains the lowest level x86_64-specific interrupt
- * entry and irq statistics code. All the remaining irq logic is
- * done by the generic kernel/irq/ code and in the
- * x86_64-specific irq controller code. (e.g. i8259.c and
- * io_apic.c.)
- */
-
-#include <linux/kernel_stat.h>
-#include <linux/interrupt.h>
-#include <linux/seq_file.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/ftrace.h>
-#include <linux/uaccess.h>
-#include <linux/smp.h>
-#include <asm/io_apic.h>
-#include <asm/idle.h>
-#include <asm/apic.h>
-
-DEFINE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
-EXPORT_PER_CPU_SYMBOL(irq_stat);
-
-DEFINE_PER_CPU(struct pt_regs *, irq_regs);
-EXPORT_PER_CPU_SYMBOL(irq_regs);
-
-int sysctl_panic_on_stackoverflow;
-
-/*
- * Probabilistic stack overflow check:
- *
- * Only check the stack in process context, because everything else
- * runs on the big interrupt stacks. Checking reliably is too expensive,
- * so we just check from interrupts.
- */
-static inline void stack_overflow_check(struct pt_regs *regs)
-{
-#ifdef CONFIG_DEBUG_STACKOVERFLOW
-#define STACK_TOP_MARGIN	128
-	struct orig_ist *oist;
-	u64 irq_stack_top, irq_stack_bottom;
-	u64 estack_top, estack_bottom;
-	u64 curbase = (u64)task_stack_page(current);
-
-	if (user_mode_vm(regs))
-		return;
-
-	if (regs->sp >= curbase + sizeof(struct thread_info) +
-				  sizeof(struct pt_regs) + STACK_TOP_MARGIN &&
-	    regs->sp <= curbase + THREAD_SIZE)
-		return;
-
-	irq_stack_top = (u64)__get_cpu_var(irq_stack_union.irq_stack) +
-			STACK_TOP_MARGIN;
-	irq_stack_bottom = (u64)__get_cpu_var(irq_stack_ptr);
-	if (regs->sp >= irq_stack_top && regs->sp <= irq_stack_bottom)
-		return;
-
-	oist = &__get_cpu_var(orig_ist);
-	estack_top = (u64)oist->ist[0] - EXCEPTION_STKSZ + STACK_TOP_MARGIN;
-	estack_bottom = (u64)oist->ist[N_EXCEPTION_STACKS - 1];
-	if (regs->sp >= estack_top && regs->sp <= estack_bottom)
-		return;
-
-	WARN_ONCE(1, "do_IRQ(): %s has overflown the kernel stack (cur:%Lx,sp:%lx,irq stk top-bottom:%Lx-%Lx,exception stk top-bottom:%Lx-%Lx)\n",
-		current->comm, curbase, regs->sp,
-		irq_stack_top, irq_stack_bottom,
-		estack_top, estack_bottom);
-
-	if (sysctl_panic_on_stackoverflow)
-		panic("low stack detected by irq handler - check messages\n");
-#endif
-}
-
-bool handle_irq(unsigned irq, struct pt_regs *regs)
-{
-	struct irq_desc *desc;
-
-	stack_overflow_check(regs);
-
-	desc = irq_to_desc(irq);
-	if (unlikely(!desc))
-		return false;
-
-	generic_handle_irq_desc(irq, desc);
-	return true;
-}
-
-
-extern void call_softirq(void);
-
-asmlinkage void do_softirq(void)
-{
-	__u32 pending;
-	unsigned long flags;
-
-	if (in_interrupt())
-		return;
-
-	local_irq_save(flags);
-	pending = local_softirq_pending();
-	/* Switch to interrupt stack */
-	if (pending) {
-		call_softirq();
-		WARN_ON_ONCE(softirq_count());
-	}
-	local_irq_restore(flags);
-}