i386: move oprofile

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

13 files changed, 2 insertions, 1926 deletions

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 0f6186f0303..2d85e4b8730 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -1240,7 +1240,7 @@ menuconfig INSTRUMENTATION
 
 if INSTRUMENTATION
 
-source "arch/i386/oprofile/Kconfig"
+source "arch/x86/oprofile/Kconfig"
 
 config KPROBES
 	bool "Kprobes"
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index e03c47e56c7..4d1c0015e44 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -109,7 +109,7 @@ core-y					+= arch/i386/kernel/ \
 drivers-$(CONFIG_MATH_EMULATION)	+= arch/x86/math-emu/
 drivers-$(CONFIG_PCI)			+= arch/x86/pci/
 # must be linked after kernel/
-drivers-$(CONFIG_OPROFILE)		+= arch/i386/oprofile/
+drivers-$(CONFIG_OPROFILE)		+= arch/x86/oprofile/
 drivers-$(CONFIG_PM)			+= arch/x86/power/
 drivers-$(CONFIG_FB)                    += arch/i386/video/
 
diff --git a/arch/i386/oprofile/Kconfig b/arch/i386/oprofile/Kconfig
deleted file mode 100644
index d8a84088471..00000000000
--- a/arch/i386/oprofile/Kconfig
+++ /dev/null
@@ -1,17 +0,0 @@
-config PROFILING
-	bool "Profiling support (EXPERIMENTAL)"
-	help
-	  Say Y here to enable the extended profiling support mechanisms used
-	  by profilers such as OProfile.
-	  
-
-config OPROFILE
-	tristate "OProfile system profiling (EXPERIMENTAL)"
-	depends on PROFILING
-	help
-	  OProfile is a profiling system capable of profiling the
-	  whole system, include the kernel, kernel modules, libraries,
-	  and applications.
-
-	  If unsure, say N.
-
diff --git a/arch/i386/oprofile/Makefile b/arch/i386/oprofile/Makefile
deleted file mode 100644
index 30f3eb36666..00000000000
--- a/arch/i386/oprofile/Makefile
+++ /dev/null
@@ -1,12 +0,0 @@
-obj-$(CONFIG_OPROFILE) += oprofile.o
-
-DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
-		oprof.o cpu_buffer.o buffer_sync.o \
-		event_buffer.o oprofile_files.o \
-		oprofilefs.o oprofile_stats.o  \
-		timer_int.o )
-
-oprofile-y				:= $(DRIVER_OBJS) init.o backtrace.o
-oprofile-$(CONFIG_X86_LOCAL_APIC) 	+= nmi_int.o op_model_athlon.o \
-					   op_model_ppro.o op_model_p4.o
-oprofile-$(CONFIG_X86_IO_APIC)		+= nmi_timer_int.o
diff --git a/arch/i386/oprofile/backtrace.c b/arch/i386/oprofile/backtrace.c
deleted file mode 100644
index c049ce414f0..00000000000
--- a/arch/i386/oprofile/backtrace.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/**
- * @file backtrace.c
- *
- * @remark Copyright 2002 OProfile authors
- * @remark Read the file COPYING
- *
- * @author John Levon
- * @author David Smith
- */
-
-#include <linux/oprofile.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <asm/ptrace.h>
-#include <asm/uaccess.h>
-
-struct frame_head {
-	struct frame_head * ebp;
-	unsigned long ret;
-} __attribute__((packed));
-
-static struct frame_head *
-dump_kernel_backtrace(struct frame_head * head)
-{
-	oprofile_add_trace(head->ret);
-
-	/* frame pointers should strictly progress back up the stack
-	 * (towards higher addresses) */
-	if (head >= head->ebp)
-		return NULL;
-
-	return head->ebp;
-}
-
-static struct frame_head *
-dump_user_backtrace(struct frame_head * head)
-{
-	struct frame_head bufhead[2];
-
-	/* Also check accessibility of one struct frame_head beyond */
-	if (!access_ok(VERIFY_READ, head, sizeof(bufhead)))
-		return NULL;
-	if (__copy_from_user_inatomic(bufhead, head, sizeof(bufhead)))
-		return NULL;
-
-	oprofile_add_trace(bufhead[0].ret);
-
-	/* frame pointers should strictly progress back up the stack
-	 * (towards higher addresses) */
-	if (head >= bufhead[0].ebp)
-		return NULL;
-
-	return bufhead[0].ebp;
-}
-
-/*
- * |             | /\ Higher addresses
- * |             |
- * --------------- stack base (address of current_thread_info)
- * | thread info |
- * .             .
- * |    stack    |
- * --------------- saved regs->ebp value if valid (frame_head address)
- * .             .
- * --------------- saved regs->rsp value if x86_64
- * |             |
- * --------------- struct pt_regs * stored on stack if 32-bit
- * |             |
- * .             .
- * |             |
- * --------------- %esp
- * |             |
- * |             | \/ Lower addresses
- *
- * Thus, regs (or regs->rsp for x86_64) <-> stack base restricts the
- * valid(ish) ebp values. Note: (1) for x86_64, NMI and several other
- * exceptions use special stacks, maintained by the interrupt stack table
- * (IST). These stacks are set up in trap_init() in
- * arch/x86_64/kernel/traps.c. Thus, for x86_64, regs now does not point
- * to the kernel stack; instead, it points to some location on the NMI
- * stack. On the other hand, regs->rsp is the stack pointer saved when the
- * NMI occurred. (2) For 32-bit, regs->esp is not valid because the
- * processor does not save %esp on the kernel stack when interrupts occur
- * in the kernel mode.
- */
-#ifdef CONFIG_FRAME_POINTER
-static int valid_kernel_stack(struct frame_head * head, struct pt_regs * regs)
-{
-	unsigned long headaddr = (unsigned long)head;
-#ifdef CONFIG_X86_64
-	unsigned long stack = (unsigned long)regs->rsp;
-#else
-	unsigned long stack = (unsigned long)regs;
-#endif
-	unsigned long stack_base = (stack & ~(THREAD_SIZE - 1)) + THREAD_SIZE;
-
-	return headaddr > stack && headaddr < stack_base;
-}
-#else
-/* without fp, it's just junk */
-static int valid_kernel_stack(struct frame_head * head, struct pt_regs * regs)
-{
-	return 0;
-}
-#endif
-
-
-void
-x86_backtrace(struct pt_regs * const regs, unsigned int depth)
-{
-	struct frame_head *head;
-
-#ifdef CONFIG_X86_64
-	head = (struct frame_head *)regs->rbp;
-#else
-	head = (struct frame_head *)regs->ebp;
-#endif
-
-	if (!user_mode_vm(regs)) {
-		while (depth-- && valid_kernel_stack(head, regs))
-			head = dump_kernel_backtrace(head);
-		return;
-	}
-
-	while (depth-- && head)
-		head = dump_user_backtrace(head);
-}
diff --git a/arch/i386/oprofile/init.c b/arch/i386/oprofile/init.c
deleted file mode 100644
index 5341d481d92..00000000000
--- a/arch/i386/oprofile/init.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/**
- * @file init.c
- *
- * @remark Copyright 2002 OProfile authors
- * @remark Read the file COPYING
- *
- * @author John Levon <levon@movementarian.org>
- */
-
-#include <linux/oprofile.h>
-#include <linux/init.h>
-#include <linux/errno.h>
- 
-/* We support CPUs that have performance counters like the Pentium Pro
- * with the NMI mode driver.
- */
- 
-extern int op_nmi_init(struct oprofile_operations * ops);
-extern int op_nmi_timer_init(struct oprofile_operations * ops);
-extern void op_nmi_exit(void);
-extern void x86_backtrace(struct pt_regs * const regs, unsigned int depth);
-
-
-int __init oprofile_arch_init(struct oprofile_operations * ops)
-{
-	int ret;
-
-	ret = -ENODEV;
-
-#ifdef CONFIG_X86_LOCAL_APIC
-	ret = op_nmi_init(ops);
-#endif
-#ifdef CONFIG_X86_IO_APIC
-	if (ret < 0)
-		ret = op_nmi_timer_init(ops);
-#endif
-	ops->backtrace = x86_backtrace;
-
-	return ret;
-}
-
-
-void oprofile_arch_exit(void)
-{
-#ifdef CONFIG_X86_LOCAL_APIC
-	op_nmi_exit();
-#endif
-}
diff --git a/arch/i386/oprofile/nmi_int.c b/arch/i386/oprofile/nmi_int.c
deleted file mode 100644
index 11b7a51566a..00000000000
--- a/arch/i386/oprofile/nmi_int.c
+++ /dev/null
@@ -1,477 +0,0 @@
-/**
- * @file nmi_int.c
- *
- * @remark Copyright 2002 OProfile authors
- * @remark Read the file COPYING
- *
- * @author John Levon <levon@movementarian.org>
- */
-
-#include <linux/init.h>
-#include <linux/notifier.h>
-#include <linux/smp.h>
-#include <linux/oprofile.h>
-#include <linux/sysdev.h>
-#include <linux/slab.h>
-#include <linux/moduleparam.h>
-#include <linux/kdebug.h>
-#include <asm/nmi.h>
-#include <asm/msr.h>
-#include <asm/apic.h>
- 
-#include "op_counter.h"
-#include "op_x86_model.h"
-
-static struct op_x86_model_spec const * model;
-static struct op_msrs cpu_msrs[NR_CPUS];
-static unsigned long saved_lvtpc[NR_CPUS];
-
-static int nmi_start(void);
-static void nmi_stop(void);
-
-/* 0 == registered but off, 1 == registered and on */
-static int nmi_enabled = 0;
-
-#ifdef CONFIG_PM
-
-static int nmi_suspend(struct sys_device *dev, pm_message_t state)
-{
-	if (nmi_enabled == 1)
-		nmi_stop();
-	return 0;
-}
-
-
-static int nmi_resume(struct sys_device *dev)
-{
-	if (nmi_enabled == 1)
-		nmi_start();
-	return 0;
-}
-
-
-static struct sysdev_class oprofile_sysclass = {
-	set_kset_name("oprofile"),
-	.resume		= nmi_resume,
-	.suspend	= nmi_suspend,
-};
-
-
-static struct sys_device device_oprofile = {
-	.id	= 0,
-	.cls	= &oprofile_sysclass,
-};
-
-
-static int __init init_sysfs(void)
-{
-	int error;
-	if (!(error = sysdev_class_register(&oprofile_sysclass)))
-		error = sysdev_register(&device_oprofile);
-	return error;
-}
-
-
-static void exit_sysfs(void)
-{
-	sysdev_unregister(&device_oprofile);
-	sysdev_class_unregister(&oprofile_sysclass);
-}
-
-#else
-#define init_sysfs() do { } while (0)
-#define exit_sysfs() do { } while (0)
-#endif /* CONFIG_PM */
-
-static int profile_exceptions_notify(struct notifier_block *self,
-				     unsigned long val, void *data)
-{
-	struct die_args *args = (struct die_args *)data;
-	int ret = NOTIFY_DONE;
-	int cpu = smp_processor_id();
-
-	switch(val) {
-	case DIE_NMI:
-		if (model->check_ctrs(args->regs, &cpu_msrs[cpu]))
-			ret = NOTIFY_STOP;
-		break;
-	default:
-		break;
-	}
-	return ret;
-}
-
-static void nmi_cpu_save_registers(struct op_msrs * msrs)
-{
-	unsigned int const nr_ctrs = model->num_counters;
-	unsigned int const nr_ctrls = model->num_controls; 
-	struct op_msr * counters = msrs->counters;
-	struct op_msr * controls = msrs->controls;
-	unsigned int i;
-
-	for (i = 0; i < nr_ctrs; ++i) {
-		if (counters[i].addr){
-			rdmsr(counters[i].addr,
-				counters[i].saved.low,
-				counters[i].saved.high);
-		}
-	}
- 
-	for (i = 0; i < nr_ctrls; ++i) {
-		if (controls[i].addr){
-			rdmsr(controls[i].addr,
-				controls[i].saved.low,
-				controls[i].saved.high);
-		}
-	}
-}
-
-
-static void nmi_save_registers(void * dummy)
-{
-	int cpu = smp_processor_id();
-	struct op_msrs * msrs = &cpu_msrs[cpu];
-	nmi_cpu_save_registers(msrs);
-}
-
-
-static void free_msrs(void)
-{
-	int i;
-	for_each_possible_cpu(i) {
-		kfree(cpu_msrs[i].counters);
-		cpu_msrs[i].counters = NULL;
-		kfree(cpu_msrs[i].controls);
-		cpu_msrs[i].controls = NULL;
-	}
-}
-
-
-static int allocate_msrs(void)
-{
-	int success = 1;
-	size_t controls_size = sizeof(struct op_msr) * model->num_controls;
-	size_t counters_size = sizeof(struct op_msr) * model->num_counters;
-
-	int i;
-	for_each_possible_cpu(i) {
-		cpu_msrs[i].counters = kmalloc(counters_size, GFP_KERNEL);
-		if (!cpu_msrs[i].counters) {
-			success = 0;
-			break;
-		}
-		cpu_msrs[i].controls = kmalloc(controls_size, GFP_KERNEL);
-		if (!cpu_msrs[i].controls) {
-			success = 0;
-			break;
-		}
-	}
-
-	if (!success)
-		free_msrs();
-
-	return success;
-}
-
-
-static void nmi_cpu_setup(void * dummy)
-{
-	int cpu = smp_processor_id();
-	struct op_msrs * msrs = &cpu_msrs[cpu];
-	spin_lock(&oprofilefs_lock);
-	model->setup_ctrs(msrs);
-	spin_unlock(&oprofilefs_lock);
-	saved_lvtpc[cpu] = apic_read(APIC_LVTPC);
-	apic_write(APIC_LVTPC, APIC_DM_NMI);
-}
-
-static struct notifier_block profile_exceptions_nb = {
-	.notifier_call = profile_exceptions_notify,
-	.next = NULL,
-	.priority = 0
-};
-
-static int nmi_setup(void)
-{
-	int err=0;
-	int cpu;
-
-	if (!allocate_msrs())
-		return -ENOMEM;
-
-	if ((err = register_die_notifier(&profile_exceptions_nb))){
-		free_msrs();
-		return err;
-	}
-
-	/* We need to serialize save and setup for HT because the subset
-	 * of msrs are distinct for save and setup operations
-	 */
-
-	/* Assume saved/restored counters are the same on all CPUs */
-	model->fill_in_addresses(&cpu_msrs[0]);
-	for_each_possible_cpu (cpu) {
-		if (cpu != 0) {
-			memcpy(cpu_msrs[cpu].counters, cpu_msrs[0].counters,
-				sizeof(struct op_msr) * model->num_counters);
-
-			memcpy(cpu_msrs[cpu].controls, cpu_msrs[0].controls,
-				sizeof(struct op_msr) * model->num_controls);
-		}
-
-	}
-	on_each_cpu(nmi_save_registers, NULL, 0, 1);
-	on_each_cpu(nmi_cpu_setup, NULL, 0, 1);
-	nmi_enabled = 1;
-	return 0;
-}
-
-
-static void nmi_restore_registers(struct op_msrs * msrs)
-{
-	unsigned int const nr_ctrs = model->num_counters;
-	unsigned int const nr_ctrls = model->num_controls; 
-	struct op_msr * counters = msrs->counters;
-	struct op_msr * controls = msrs->controls;
-	unsigned int i;
-
-	for (i = 0; i < nr_ctrls; ++i) {
-		if (controls[i].addr){
-			wrmsr(controls[i].addr,
-				controls[i].saved.low,
-				controls[i].saved.high);
-		}
-	}
- 
-	for (i = 0; i < nr_ctrs; ++i) {
-		if (counters[i].addr){
-			wrmsr(counters[i].addr,
-				counters[i].saved.low,
-				counters[i].saved.high);
-		}
-	}
-}
- 
-
-static void nmi_cpu_shutdown(void * dummy)
-{
-	unsigned int v;
-	int cpu = smp_processor_id();
-	struct op_msrs * msrs = &cpu_msrs[cpu];
- 
-	/* restoring APIC_LVTPC can trigger an apic error because the delivery
-	 * mode and vector nr combination can be illegal. That's by design: on
-	 * power on apic lvt contain a zero vector nr which are legal only for
-	 * NMI delivery mode. So inhibit apic err before restoring lvtpc
-	 */
-	v = apic_read(APIC_LVTERR);
-	apic_write(APIC_LVTERR, v | APIC_LVT_MASKED);
-	apic_write(APIC_LVTPC, saved_lvtpc[cpu]);
-	apic_write(APIC_LVTERR, v);
-	nmi_restore_registers(msrs);
-	model->shutdown(msrs);
-}
-
- 
-static void nmi_shutdown(void)
-{
-	nmi_enabled = 0;
-	on_each_cpu(nmi_cpu_shutdown, NULL, 0, 1);
-	unregister_die_notifier(&profile_exceptions_nb);
-	free_msrs();
-}
-
- 
-static void nmi_cpu_start(void * dummy)
-{
-	struct op_msrs const * msrs = &cpu_msrs[smp_processor_id()];
-	model->start(msrs);
-}
- 
-
-static int nmi_start(void)
-{
-	on_each_cpu(nmi_cpu_start, NULL, 0, 1);
-	return 0;
-}
- 
- 
-static void nmi_cpu_stop(void * dummy)
-{
-	struct op_msrs const * msrs = &cpu_msrs[smp_processor_id()];
-	model->stop(msrs);
-}
- 
- 
-static void nmi_stop(void)
-{
-	on_each_cpu(nmi_cpu_stop, NULL, 0, 1);
-}
-
-
-struct op_counter_config counter_config[OP_MAX_COUNTER];
-
-static int nmi_create_files(struct super_block * sb, struct dentry * root)
-{
-	unsigned int i;
-
-	for (i = 0; i < model->num_counters; ++i) {
-		struct dentry * dir;
-		char buf[4];
- 
- 		/* quick little hack to _not_ expose a counter if it is not
-		 * available for use.  This should protect userspace app.
-		 * NOTE:  assumes 1:1 mapping here (that counters are organized
-		 *        sequentially in their struct assignment).
-		 */
-		if (unlikely(!avail_to_resrv_perfctr_nmi_bit(i)))
-			continue;
-
-		snprintf(buf,  sizeof(buf), "%d", i);
-		dir = oprofilefs_mkdir(sb, root, buf);
-		oprofilefs_create_ulong(sb, dir, "enabled", &counter_config[i].enabled); 
-		oprofilefs_create_ulong(sb, dir, "event", &counter_config[i].event); 
-		oprofilefs_create_ulong(sb, dir, "count", &counter_config[i].count); 
-		oprofilefs_create_ulong(sb, dir, "unit_mask", &counter_config[i].unit_mask); 
-		oprofilefs_create_ulong(sb, dir, "kernel", &counter_config[i].kernel); 
-		oprofilefs_create_ulong(sb, dir, "user", &counter_config[i].user); 
-	}
-
-	return 0;
-}
- 
-static int p4force;
-module_param(p4force, int, 0);
- 
-static int __init p4_init(char ** cpu_type)
-{
-	__u8 cpu_model = boot_cpu_data.x86_model;
-
-	if (!p4force && (cpu_model > 6 || cpu_model == 5))
-		return 0;
-
-#ifndef CONFIG_SMP
-	*cpu_type = "i386/p4";
-	model = &op_p4_spec;
-	return 1;
-#else
-	switch (smp_num_siblings) {
-		case 1:
-			*cpu_type = "i386/p4";
-			model = &op_p4_spec;
-			return 1;
-
-		case 2:
-			*cpu_type = "i386/p4-ht";
-			model = &op_p4_ht2_spec;
-			return 1;
-	}
-#endif
-
-	printk(KERN_INFO "oprofile: P4 HyperThreading detected with > 2 threads\n");
-	printk(KERN_INFO "oprofile: Reverting to timer mode.\n");
-	return 0;
-}
-
-
-static int __init ppro_init(char ** cpu_type)
-{
-	__u8 cpu_model = boot_cpu_data.x86_model;
-
-	if (cpu_model == 14)
-		*cpu_type = "i386/core";
-	else if (cpu_model == 15)
-		*cpu_type = "i386/core_2";
-	else if (cpu_model > 0xd)
-		return 0;
-	else if (cpu_model == 9) {
-		*cpu_type = "i386/p6_mobile";
-	} else if (cpu_model > 5) {
-		*cpu_type = "i386/piii";
-	} else if (cpu_model > 2) {
-		*cpu_type = "i386/pii";
-	} else {
-		*cpu_type = "i386/ppro";
-	}
-
-	model = &op_ppro_spec;
-	return 1;
-}
-
-/* in order to get sysfs right */
-static int using_nmi;
-
-int __init op_nmi_init(struct oprofile_operations *ops)
-{
-	__u8 vendor = boot_cpu_data.x86_vendor;
-	__u8 family = boot_cpu_data.x86;
-	char *cpu_type;
-
-	if (!cpu_has_apic)
-		return -ENODEV;
- 
-	switch (vendor) {
-		case X86_VENDOR_AMD:
-			/* Needs to be at least an Athlon (or hammer in 32bit mode) */
-
-			switch (family) {
-			default:
-				return -ENODEV;
-			case 6:
-				model = &op_athlon_spec;
-				cpu_type = "i386/athlon";
-				break;
-			case 0xf:
-				model = &op_athlon_spec;
-				/* Actually it could be i386/hammer too, but give
-				   user space an consistent name. */
-				cpu_type = "x86-64/hammer";
-				break;
-			case 0x10:
-				model = &op_athlon_spec;
-				cpu_type = "x86-64/family10";
-				break;
-			}
-			break;
- 
-		case X86_VENDOR_INTEL:
-			switch (family) {
-				/* Pentium IV */
-				case 0xf:
-					if (!p4_init(&cpu_type))
-						return -ENODEV;
-					break;
-
-				/* A P6-class processor */
-				case 6:
-					if (!ppro_init(&cpu_type))
-						return -ENODEV;
-					break;
-
-				default:
-					return -ENODEV;
-			}
-			break;
-
-		default:
-			return -ENODEV;
-	}
-
-	init_sysfs();
-	using_nmi = 1;
-	ops->create_files = nmi_create_files;
-	ops->setup = nmi_setup;
-	ops->shutdown = nmi_shutdown;
-	ops->start = nmi_start;
-	ops->stop = nmi_stop;
-	ops->cpu_type = cpu_type;
-	printk(KERN_INFO "oprofile: using NMI interrupt.\n");
-	return 0;
-}
-
-
-void op_nmi_exit(void)
-{
-	if (using_nmi)
-		exit_sysfs();
-}
diff --git a/arch/i386/oprofile/nmi_timer_int.c b/arch/i386/oprofile/nmi_timer_int.c
deleted file mode 100644
index 1418e36ae7a..00000000000
--- a/arch/i386/oprofile/nmi_timer_int.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/**
- * @file nmi_timer_int.c
- *
- * @remark Copyright 2003 OProfile authors
- * @remark Read the file COPYING
- *
- * @author Zwane Mwaikambo <zwane@linuxpower.ca>
- */
-
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/errno.h>
-#include <linux/oprofile.h>
-#include <linux/rcupdate.h>
-#include <linux/kdebug.h>
-
-#include <asm/nmi.h>
-#include <asm/apic.h>
-#include <asm/ptrace.h>
- 
-static int profile_timer_exceptions_notify(struct notifier_block *self,
-					   unsigned long val, void *data)
-{
-	struct die_args *args = (struct die_args *)data;
-	int ret = NOTIFY_DONE;
-
-	switch(val) {
-	case DIE_NMI:
-		oprofile_add_sample(args->regs, 0);
-		ret = NOTIFY_STOP;
-		break;
-	default:
-		break;
-	}
-	return ret;
-}
-
-static struct notifier_block profile_timer_exceptions_nb = {
-	.notifier_call = profile_timer_exceptions_notify,
-	.next = NULL,
-	.priority = 0
-};
-
-static int timer_start(void)
-{
-	if (register_die_notifier(&profile_timer_exceptions_nb))
-		return 1;
-	return 0;
-}
-
-
-static void timer_stop(void)
-{
-	unregister_die_notifier(&profile_timer_exceptions_nb);
-	synchronize_sched();  /* Allow already-started NMIs to complete. */
-}
-
-
-int __init op_nmi_timer_init(struct oprofile_operations * ops)
-{
-	if ((nmi_watchdog != NMI_IO_APIC) || (atomic_read(&nmi_active) <= 0))
-		return -ENODEV;
-
-	ops->start = timer_start;
-	ops->stop = timer_stop;
-	ops->cpu_type = "timer";
-	printk(KERN_INFO "oprofile: using NMI timer interrupt.\n");
-	return 0;
-}
diff --git a/arch/i386/oprofile/op_counter.h b/arch/i386/oprofile/op_counter.h
deleted file mode 100644
index 2880b15c467..00000000000
--- a/arch/i386/oprofile/op_counter.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/**
- * @file op_counter.h
- *
- * @remark Copyright 2002 OProfile authors
- * @remark Read the file COPYING
- *
- * @author John Levon
- */
- 
-#ifndef OP_COUNTER_H
-#define OP_COUNTER_H
- 
-#define OP_MAX_COUNTER 8
- 
-/* Per-perfctr configuration as set via
- * oprofilefs.
- */
-struct op_counter_config {
-        unsigned long count;
-        unsigned long enabled;
-        unsigned long event;
-        unsigned long kernel;
-        unsigned long user;
-        unsigned long unit_mask;
-};
-
-extern struct op_counter_config counter_config[];
-
-#endif /* OP_COUNTER_H */
diff --git a/arch/i386/oprofile/op_model_athlon.c b/arch/i386/oprofile/op_model_athlon.c
deleted file mode 100644
index 3057a19e464..00000000000
--- a/arch/i386/oprofile/op_model_athlon.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/**
- * @file op_model_athlon.h
- * athlon / K7 model-specific MSR operations
- *
- * @remark Copyright 2002 OProfile authors
- * @remark Read the file COPYING
- *
- * @author John Levon
- * @author Philippe Elie
- * @author Graydon Hoare
- */
-
-#include <linux/oprofile.h>
-#include <asm/ptrace.h>
-#include <asm/msr.h>
-#include <asm/nmi.h>
- 
-#include "op_x86_model.h"
-#include "op_counter.h"
-
-#define NUM_COUNTERS 4
-#define NUM_CONTROLS 4
-
-#define CTR_IS_RESERVED(msrs,c) (msrs->counters[(c)].addr ? 1 : 0)
-#define CTR_READ(l,h,msrs,c) do {rdmsr(msrs->counters[(c)].addr, (l), (h));} while (0)
-#define CTR_WRITE(l,msrs,c) do {wrmsr(msrs->counters[(c)].addr, -(unsigned int)(l), -1);} while (0)
-#define CTR_OVERFLOWED(n) (!((n) & (1U<<31)))
-
-#define CTRL_IS_RESERVED(msrs,c) (msrs->controls[(c)].addr ? 1 : 0)
-#define CTRL_READ(l,h,msrs,c) do {rdmsr(msrs->controls[(c)].addr, (l), (h));} while (0)
-#define CTRL_WRITE(l,h,msrs,c) do {wrmsr(msrs->controls[(c)].addr, (l), (h));} while (0)
-#define CTRL_SET_ACTIVE(n) (n |= (1<<22))
-#define CTRL_SET_INACTIVE(n) (n &= ~(1<<22))
-#define CTRL_CLEAR(x) (x &= (1<<21))
-#define CTRL_SET_ENABLE(val) (val |= 1<<20)
-#define CTRL_SET_USR(val,u) (val |= ((u & 1) << 16))
-#define CTRL_SET_KERN(val,k) (val |= ((k & 1) << 17))
-#define CTRL_SET_UM(val, m) (val |= (m << 8))
-#define CTRL_SET_EVENT(val, e) (val |= e)
-
-static unsigned long reset_value[NUM_COUNTERS];
- 
-static void athlon_fill_in_addresses(struct op_msrs * const msrs)
-{
-	int i;
-
-	for (i=0; i < NUM_COUNTERS; i++) {
-		if (reserve_perfctr_nmi(MSR_K7_PERFCTR0 + i))
-			msrs->counters[i].addr = MSR_K7_PERFCTR0 + i;
-		else
-			msrs->counters[i].addr = 0;
-	}
-
-	for (i=0; i < NUM_CONTROLS; i++) {
-		if (reserve_evntsel_nmi(MSR_K7_EVNTSEL0 + i))
-			msrs->controls[i].addr = MSR_K7_EVNTSEL0 + i;
-		else
-			msrs->controls[i].addr = 0;
-	}
-}
-
- 
-static void athlon_setup_ctrs(struct op_msrs const * const msrs)
-{
-	unsigned int low, high;
-	int i;
- 
-	/* clear all counters */
-	for (i = 0 ; i < NUM_CONTROLS; ++i) {
-		if (unlikely(!CTRL_IS_RESERVED(msrs,i)))
-			continue;
-		CTRL_READ(low, high, msrs, i);
-		CTRL_CLEAR(low);
-		CTRL_WRITE(low, high, msrs, i);
-	}
-
-	/* avoid a false detection of ctr overflows in NMI handler */
-	for (i = 0; i < NUM_COUNTERS; ++i) {
-		if (unlikely(!CTR_IS_RESERVED(msrs,i)))
-			continue;
-		CTR_WRITE(1, msrs, i);
-	}
-
-	/* enable active counters */
-	for (i = 0; i < NUM_COUNTERS; ++i) {
-		if ((counter_config[i].enabled) && (CTR_IS_RESERVED(msrs,i))) {
-			reset_value[i] = counter_config[i].count;
-
-			CTR_WRITE(counter_config[i].count, msrs, i);
-
-			CTRL_READ(low, high, msrs, i);
-			CTRL_CLEAR(low);
-			CTRL_SET_ENABLE(low);
-			CTRL_SET_USR(low, counter_config[i].user);
-			CTRL_SET_KERN(low, counter_config[i].kernel);
-			CTRL_SET_UM(low, counter_config[i].unit_mask);
-			CTRL_SET_EVENT(low, counter_config[i].event);
-			CTRL_WRITE(low, high, msrs, i);
-		} else {
-			reset_value[i] = 0;
-		}
-	}
-}
-
- 
-static int athlon_check_ctrs(struct pt_regs * const regs,
-			     struct op_msrs const * const msrs)
-{
-	unsigned int low, high;
-	int i;
-
-	for (i = 0 ; i < NUM_COUNTERS; ++i) {
-		if (!reset_value[i])
-			continue;
-		CTR_READ(low, high, msrs, i);
-		if (CTR_OVERFLOWED(low)) {
-			oprofile_add_sample(regs, i);
-			CTR_WRITE(reset_value[i], msrs, i);
-		}
-	}
-
-	/* See op_model_ppro.c */
-	return 1;
-}
-
- 
-static void athlon_start(struct op_msrs const * const msrs)
-{
-	unsigned int low, high;
-	int i;
-	for (i = 0 ; i < NUM_COUNTERS ; ++i) {
-		if (reset_value[i]) {
-			CTRL_READ(low, high, msrs, i);
-			CTRL_SET_ACTIVE(low);
-			CTRL_WRITE(low, high, msrs, i);
-		}
-	}
-}
-
-
-static void athlon_stop(struct op_msrs const * const msrs)
-{
-	unsigned int low,high;
-	int i;
-
-	/* Subtle: stop on all counters to avoid race with
-	 * setting our pm callback */
-	for (i = 0 ; i < NUM_COUNTERS ; ++i) {
-		if (!reset_value[i])
-			continue;
-		CTRL_READ(low, high, msrs, i);
-		CTRL_SET_INACTIVE(low);
-		CTRL_WRITE(low, high, msrs, i);
-	}
-}
-
-static void athlon_shutdown(struct op_msrs const * const msrs)
-{
-	int i;
-
-	for (i = 0 ; i < NUM_COUNTERS ; ++i) {
-		if (CTR_IS_RESERVED(msrs,i))
-			release_perfctr_nmi(MSR_K7_PERFCTR0 + i);
-	}
-	for (i = 0 ; i < NUM_CONTROLS ; ++i) {
-		if (CTRL_IS_RESERVED(msrs,i))
-			release_evntsel_nmi(MSR_K7_EVNTSEL0 + i);
-	}
-}
-
-struct op_x86_model_spec const op_athlon_spec = {
-	.num_counters = NUM_COUNTERS,
-	.num_controls = NUM_CONTROLS,
-	.fill_in_addresses = &athlon_fill_in_addresses,
-	.setup_ctrs = &athlon_setup_ctrs,
-	.check_ctrs = &athlon_check_ctrs,
-	.start = &athlon_start,
-	.stop = &athlon_stop,
-	.shutdown = &athlon_shutdown
-};
diff --git a/arch/i386/oprofile/op_model_p4.c b/arch/i386/oprofile/op_model_p4.c
deleted file mode 100644
index 47925927b12..00000000000
--- a/arch/i386/oprofile/op_model_p4.c
+++ /dev/null
@@ -1,722 +0,0 @@
-/**
- * @file op_model_p4.c
- * P4 model-specific MSR operations
- *
- * @remark Copyright 2002 OProfile authors
- * @remark Read the file COPYING
- *
- * @author Graydon Hoare
- */
-
-#include <linux/oprofile.h>
-#include <linux/smp.h>
-#include <asm/msr.h>
-#include <asm/ptrace.h>
-#include <asm/fixmap.h>
-#include <asm/apic.h>
-#include <asm/nmi.h>
-
-#include "op_x86_model.h"
-#include "op_counter.h"
-
-#define NUM_EVENTS 39
-
-#define NUM_COUNTERS_NON_HT 8
-#define NUM_ESCRS_NON_HT 45
-#define NUM_CCCRS_NON_HT 18
-#define NUM_CONTROLS_NON_HT (NUM_ESCRS_NON_HT + NUM_CCCRS_NON_HT)
-
-#define NUM_COUNTERS_HT2 4
-#define NUM_ESCRS_HT2 23
-#define NUM_CCCRS_HT2 9
-#define NUM_CONTROLS_HT2 (NUM_ESCRS_HT2 + NUM_CCCRS_HT2)
-
-static unsigned int num_counters = NUM_COUNTERS_NON_HT;
-static unsigned int num_controls = NUM_CONTROLS_NON_HT;
-
-/* this has to be checked dynamically since the
-   hyper-threadedness of a chip is discovered at
-   kernel boot-time. */
-static inline void setup_num_counters(void)
-{
-#ifdef CONFIG_SMP
-	if (smp_num_siblings == 2){
-		num_counters = NUM_COUNTERS_HT2;
-		num_controls = NUM_CONTROLS_HT2;
-	}
-#endif
-}
-
-static int inline addr_increment(void)
-{
-#ifdef CONFIG_SMP
-	return smp_num_siblings == 2 ? 2 : 1;
-#else
-	return 1;
-#endif
-}
-
-
-/* tables to simulate simplified hardware view of p4 registers */
-struct p4_counter_binding {
-	int virt_counter;
-	int counter_address;
-	int cccr_address;
-};
-
-struct p4_event_binding {
-	int escr_select;  /* value to put in CCCR */
-	int event_select; /* value to put in ESCR */
-	struct {
-		int virt_counter; /* for this counter... */
-		int escr_address; /* use this ESCR       */
-	} bindings[2];
-};
-
-/* nb: these CTR_* defines are a duplicate of defines in
-   event/i386.p4*events. */
-
-
-#define CTR_BPU_0      (1 << 0)
-#define CTR_MS_0       (1 << 1)
-#define CTR_FLAME_0    (1 << 2)
-#define CTR_IQ_4       (1 << 3)
-#define CTR_BPU_2      (1 << 4)
-#define CTR_MS_2       (1 << 5)
-#define CTR_FLAME_2    (1 << 6)
-#define CTR_IQ_5       (1 << 7)
-
-static struct p4_counter_binding p4_counters [NUM_COUNTERS_NON_HT] = {
-	{ CTR_BPU_0,   MSR_P4_BPU_PERFCTR0,   MSR_P4_BPU_CCCR0 },
-	{ CTR_MS_0,    MSR_P4_MS_PERFCTR0,    MSR_P4_MS_CCCR0 },