Merge tag 'oprofile-removal-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux

Pull oprofile and dcookies removal from Viresh Kumar:
 "Remove oprofile and dcookies support

  The 'oprofile' user-space tools don't use the kernel OPROFILE support
  any more, and haven't in a long time. User-space has been converted to
  the perf interfaces.

  The dcookies stuff is only used by the oprofile code. Now that
  oprofile's support is getting removed from the kernel, there is no
  need for dcookies as well.

  Remove kernel's old oprofile and dcookies support"

* tag 'oprofile-removal-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux:
  fs: Remove dcookies support
  drivers: Remove CONFIG_OPROFILE support
  arch: xtensa: Remove CONFIG_OPROFILE support
  arch: x86: Remove CONFIG_OPROFILE support
  arch: sparc: Remove CONFIG_OPROFILE support
  arch: sh: Remove CONFIG_OPROFILE support
  arch: s390: Remove CONFIG_OPROFILE support
  arch: powerpc: Remove oprofile
  arch: powerpc: Stop building and using oprofile
  arch: parisc: Remove CONFIG_OPROFILE support
  arch: mips: Remove CONFIG_OPROFILE support
  arch: microblaze: Remove CONFIG_OPROFILE support
  arch: ia64: Remove rest of perfmon support
  arch: ia64: Remove CONFIG_OPROFILE support
  arch: hexagon: Don't select HAVE_OPROFILE
  arch: arc: Remove CONFIG_OPROFILE support
  arch: arm: Remove CONFIG_OPROFILE support
  arch: alpha: Remove CONFIG_OPROFILE support

7 files changed, 0 insertions, 1236 deletions

diff --git a/arch/mips/oprofile/Makefile b/arch/mips/oprofile/Makefile
deleted file mode 100644
index e10f216d0422..000000000000
--- a/arch/mips/oprofile/Makefile
+++ /dev/null
@@ -1,18 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-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				:= $(DRIVER_OBJS) common.o backtrace.o
-
-oprofile-$(CONFIG_CPU_MIPS32)		+= op_model_mipsxx.o
-oprofile-$(CONFIG_CPU_MIPS64)		+= op_model_mipsxx.o
-oprofile-$(CONFIG_CPU_R10000)		+= op_model_mipsxx.o
-oprofile-$(CONFIG_CPU_SB1)		+= op_model_mipsxx.o
-oprofile-$(CONFIG_CPU_XLR)		+= op_model_mipsxx.o
-oprofile-$(CONFIG_CPU_LOONGSON2EF)	+= op_model_loongson2.o
-oprofile-$(CONFIG_CPU_LOONGSON64)	+= op_model_loongson3.o
diff --git a/arch/mips/oprofile/backtrace.c b/arch/mips/oprofile/backtrace.c
deleted file mode 100644
index 07d98ba7f49e..000000000000
--- a/arch/mips/oprofile/backtrace.c
+++ /dev/null
@@ -1,177 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/oprofile.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/uaccess.h>
-#include <asm/ptrace.h>
-#include <asm/stacktrace.h>
-#include <linux/stacktrace.h>
-#include <linux/kernel.h>
-#include <asm/sections.h>
-#include <asm/inst.h>
-
-struct stackframe {
-	unsigned long sp;
-	unsigned long pc;
-	unsigned long ra;
-};
-
-static inline int get_mem(unsigned long addr, unsigned long *result)
-{
-	unsigned long *address = (unsigned long *) addr;
-	if (!access_ok(address, sizeof(unsigned long)))
-		return -1;
-	if (__copy_from_user_inatomic(result, address, sizeof(unsigned long)))
-		return -3;
-	return 0;
-}
-
-/*
- * These two instruction helpers were taken from process.c
- */
-static inline int is_ra_save_ins(union mips_instruction *ip)
-{
-	/* sw / sd $ra, offset($sp) */
-	return (ip->i_format.opcode == sw_op || ip->i_format.opcode == sd_op)
-		&& ip->i_format.rs == 29 && ip->i_format.rt == 31;
-}
-
-static inline int is_sp_move_ins(union mips_instruction *ip)
-{
-	/* addiu/daddiu sp,sp,-imm */
-	if (ip->i_format.rs != 29 || ip->i_format.rt != 29)
-		return 0;
-	if (ip->i_format.opcode == addiu_op || ip->i_format.opcode == daddiu_op)
-		return 1;
-	return 0;
-}
-
-/*
- * Looks for specific instructions that mark the end of a function.
- * This usually means we ran into the code area of the previous function.
- */
-static inline int is_end_of_function_marker(union mips_instruction *ip)
-{
-	/* jr ra */
-	if (ip->r_format.func == jr_op && ip->r_format.rs == 31)
-		return 1;
-	/* lui gp */
-	if (ip->i_format.opcode == lui_op && ip->i_format.rt == 28)
-		return 1;
-	return 0;
-}
-
-/*
- * TODO for userspace stack unwinding:
- * - handle cases where the stack is adjusted inside a function
- *     (generally doesn't happen)
- * - find optimal value for max_instr_check
- * - try to find a better way to handle leaf functions
- */
-
-static inline int unwind_user_frame(struct stackframe *old_frame,
-				    const unsigned int max_instr_check)
-{
-	struct stackframe new_frame = *old_frame;
-	off_t ra_offset = 0;
-	size_t stack_size = 0;
-	unsigned long addr;
-
-	if (old_frame->pc == 0 || old_frame->sp == 0 || old_frame->ra == 0)
-		return -9;
-
-	for (addr = new_frame.pc; (addr + max_instr_check > new_frame.pc)
-		&& (!ra_offset || !stack_size); --addr) {
-		union mips_instruction ip;
-
-		if (get_mem(addr, (unsigned long *) &ip))
-			return -11;
-
-		if (is_sp_move_ins(&ip)) {
-			int stack_adjustment = ip.i_format.simmediate;
-			if (stack_adjustment > 0)
-				/* This marks the end of the previous function,
-				   which means we overran. */
-				break;
-			stack_size = (unsigned long) stack_adjustment;
-		} else if (is_ra_save_ins(&ip)) {
-			int ra_slot = ip.i_format.simmediate;
-			if (ra_slot < 0)
-				/* This shouldn't happen. */
-				break;
-			ra_offset = ra_slot;
-		} else if (is_end_of_function_marker(&ip))
-			break;
-	}
-
-	if (!ra_offset || !stack_size)
-		goto done;
-
-	if (ra_offset) {
-		new_frame.ra = old_frame->sp + ra_offset;
-		if (get_mem(new_frame.ra, &(new_frame.ra)))
-			return -13;
-	}
-
-	if (stack_size) {
-		new_frame.sp = old_frame->sp + stack_size;
-		if (get_mem(new_frame.sp, &(new_frame.sp)))
-			return -14;
-	}
-
-	if (new_frame.sp > old_frame->sp)
-		return -2;
-
-done:
-	new_frame.pc = old_frame->ra;
-	*old_frame = new_frame;
-
-	return 0;
-}
-
-static inline void do_user_backtrace(unsigned long low_addr,
-				     struct stackframe *frame,
-				     unsigned int depth)
-{
-	const unsigned int max_instr_check = 512;
-	const unsigned long high_addr = low_addr + THREAD_SIZE;
-
-	while (depth-- && !unwind_user_frame(frame, max_instr_check)) {
-		oprofile_add_trace(frame->ra);
-		if (frame->sp < low_addr || frame->sp > high_addr)
-			break;
-	}
-}
-
-#ifndef CONFIG_KALLSYMS
-static inline void do_kernel_backtrace(unsigned long low_addr,
-				       struct stackframe *frame,
-				       unsigned int depth) { }
-#else
-static inline void do_kernel_backtrace(unsigned long low_addr,
-				       struct stackframe *frame,
-				       unsigned int depth)
-{
-	while (depth-- && frame->pc) {
-		frame->pc = unwind_stack_by_address(low_addr,
-						    &(frame->sp),
-						    frame->pc,
-						    &(frame->ra));
-		oprofile_add_trace(frame->ra);
-	}
-}
-#endif
-
-void notrace op_mips_backtrace(struct pt_regs *const regs, unsigned int depth)
-{
-	struct stackframe frame = { .sp = regs->regs[29],
-				    .pc = regs->cp0_epc,
-				    .ra = regs->regs[31] };
-	const int userspace = user_mode(regs);
-	const unsigned long low_addr = ALIGN(frame.sp, THREAD_SIZE);
-
-	if (userspace)
-		do_user_backtrace(low_addr, &frame, depth);
-	else
-		do_kernel_backtrace(low_addr, &frame, depth);
-}
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
deleted file mode 100644
index d3996c4c6440..000000000000
--- a/arch/mips/oprofile/common.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2004, 2005 Ralf Baechle
- * Copyright (C) 2005 MIPS Technologies, Inc.
- */
-#include <linux/compiler.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/oprofile.h>
-#include <linux/smp.h>
-#include <asm/cpu-info.h>
-#include <asm/cpu-type.h>
-
-#include "op_impl.h"
-
-extern struct op_mips_model op_model_mipsxx_ops __weak;
-extern struct op_mips_model op_model_loongson2_ops __weak;
-extern struct op_mips_model op_model_loongson3_ops __weak;
-
-static struct op_mips_model *model;
-
-static struct op_counter_config ctr[20];
-
-static int op_mips_setup(void)
-{
-	/* Pre-compute the values to stuff in the hardware registers.  */
-	model->reg_setup(ctr);
-
-	/* Configure the registers on all cpus.	 */
-	on_each_cpu(model->cpu_setup, NULL, 1);
-
-	return 0;
-}
-
-static int op_mips_create_files(struct dentry *root)
-{
-	int i;
-
-	for (i = 0; i < model->num_counters; ++i) {
-		struct dentry *dir;
-		char buf[4];
-
-		snprintf(buf, sizeof buf, "%d", i);
-		dir = oprofilefs_mkdir(root, buf);
-
-		oprofilefs_create_ulong(dir, "enabled", &ctr[i].enabled);
-		oprofilefs_create_ulong(dir, "event", &ctr[i].event);
-		oprofilefs_create_ulong(dir, "count", &ctr[i].count);
-		oprofilefs_create_ulong(dir, "kernel", &ctr[i].kernel);
-		oprofilefs_create_ulong(dir, "user", &ctr[i].user);
-		oprofilefs_create_ulong(dir, "exl", &ctr[i].exl);
-		/* Dummy.  */
-		oprofilefs_create_ulong(dir, "unit_mask", &ctr[i].unit_mask);
-	}
-
-	return 0;
-}
-
-static int op_mips_start(void)
-{
-	on_each_cpu(model->cpu_start, NULL, 1);
-
-	return 0;
-}
-
-static void op_mips_stop(void)
-{
-	/* Disable performance monitoring for all counters.  */
-	on_each_cpu(model->cpu_stop, NULL, 1);
-}
-
-int __init oprofile_arch_init(struct oprofile_operations *ops)
-{
-	struct op_mips_model *lmodel = NULL;
-	int res;
-
-	switch (boot_cpu_type()) {
-	case CPU_5KC:
-	case CPU_M14KC:
-	case CPU_M14KEC:
-	case CPU_20KC:
-	case CPU_24K:
-	case CPU_25KF:
-	case CPU_34K:
-	case CPU_1004K:
-	case CPU_74K:
-	case CPU_1074K:
-	case CPU_INTERAPTIV:
-	case CPU_PROAPTIV:
-	case CPU_P5600:
-	case CPU_I6400:
-	case CPU_M5150:
-	case CPU_LOONGSON32:
-	case CPU_SB1:
-	case CPU_SB1A:
-	case CPU_R10000:
-	case CPU_R12000:
-	case CPU_R14000:
-	case CPU_R16000:
-	case CPU_XLR:
-		lmodel = &op_model_mipsxx_ops;
-		break;
-
-	case CPU_LOONGSON2EF:
-		lmodel = &op_model_loongson2_ops;
-		break;
-	case CPU_LOONGSON64:
-		lmodel = &op_model_loongson3_ops;
-		break;
-	}
-
-	/*
-	 * Always set the backtrace. This allows unsupported CPU types to still
-	 * use timer-based oprofile.
-	 */
-	ops->backtrace = op_mips_backtrace;
-
-	if (!lmodel)
-		return -ENODEV;
-
-	res = lmodel->init();
-	if (res)
-		return res;
-
-	model = lmodel;
-
-	ops->create_files	= op_mips_create_files;
-	ops->setup		= op_mips_setup;
-	//ops->shutdown		= op_mips_shutdown;
-	ops->start		= op_mips_start;
-	ops->stop		= op_mips_stop;
-	ops->cpu_type		= lmodel->cpu_type;
-
-	printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
-	       lmodel->cpu_type);
-
-	return 0;
-}
-
-void oprofile_arch_exit(void)
-{
-	if (model)
-		model->exit();
-}
diff --git a/arch/mips/oprofile/op_impl.h b/arch/mips/oprofile/op_impl.h
deleted file mode 100644
index a4e758a39af4..000000000000
--- a/arch/mips/oprofile/op_impl.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/**
- * @file arch/alpha/oprofile/op_impl.h
- *
- * @remark Copyright 2002 OProfile authors
- * @remark Read the file COPYING
- *
- * @author Richard Henderson <rth@twiddle.net>
- */
-
-#ifndef OP_IMPL_H
-#define OP_IMPL_H 1
-
-extern int (*perf_irq)(void);
-
-/* Per-counter configuration as set via oprofilefs.  */
-struct op_counter_config {
-	unsigned long enabled;
-	unsigned long event;
-	unsigned long count;
-	/* Dummies because I am too lazy to hack the userspace tools.  */
-	unsigned long kernel;
-	unsigned long user;
-	unsigned long exl;
-	unsigned long unit_mask;
-};
-
-/* Per-architecture configure and hooks.  */
-struct op_mips_model {
-	void (*reg_setup) (struct op_counter_config *);
-	void (*cpu_setup) (void *dummy);
-	int (*init)(void);
-	void (*exit)(void);
-	void (*cpu_start)(void *args);
-	void (*cpu_stop)(void *args);
-	char *cpu_type;
-	unsigned char num_counters;
-};
-
-void op_mips_backtrace(struct pt_regs * const regs, unsigned int depth);
-
-#endif
diff --git a/arch/mips/oprofile/op_model_loongson2.c b/arch/mips/oprofile/op_model_loongson2.c
deleted file mode 100644
index b249ec0bebb2..000000000000
--- a/arch/mips/oprofile/op_model_loongson2.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * Loongson2 performance counter driver for oprofile
- *
- * Copyright (C) 2009 Lemote Inc.
- * Author: Yanhua <yanh@lemote.com>
- * Author: Wu Zhangjin <wuzhangjin@gmail.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <linux/oprofile.h>
-#include <linux/interrupt.h>
-
-#include <loongson.h>			/* LOONGSON2_PERFCNT_IRQ */
-#include "op_impl.h"
-
-#define LOONGSON2_CPU_TYPE	"mips/loongson2"
-
-#define LOONGSON2_PERFCNT_OVERFLOW		(1ULL	<< 31)
-
-#define LOONGSON2_PERFCTRL_EXL			(1UL	<<  0)
-#define LOONGSON2_PERFCTRL_KERNEL		(1UL	<<  1)
-#define LOONGSON2_PERFCTRL_SUPERVISOR		(1UL	<<  2)
-#define LOONGSON2_PERFCTRL_USER			(1UL	<<  3)
-#define LOONGSON2_PERFCTRL_ENABLE		(1UL	<<  4)
-#define LOONGSON2_PERFCTRL_EVENT(idx, event) \
-	(((event) & 0x0f) << ((idx) ? 9 : 5))
-
-#define read_c0_perfctrl() __read_64bit_c0_register($24, 0)
-#define write_c0_perfctrl(val) __write_64bit_c0_register($24, 0, val)
-#define read_c0_perfcnt() __read_64bit_c0_register($25, 0)
-#define write_c0_perfcnt(val) __write_64bit_c0_register($25, 0, val)
-
-static struct loongson2_register_config {
-	unsigned int ctrl;
-	unsigned long long reset_counter1;
-	unsigned long long reset_counter2;
-	int cnt1_enabled, cnt2_enabled;
-} reg;
-
-static char *oprofid = "LoongsonPerf";
-static irqreturn_t loongson2_perfcount_handler(int irq, void *dev_id);
-
-static void reset_counters(void *arg)
-{
-	write_c0_perfctrl(0);
-	write_c0_perfcnt(0);
-}
-
-static void loongson2_reg_setup(struct op_counter_config *cfg)
-{
-	unsigned int ctrl = 0;
-
-	reg.reset_counter1 = 0;
-	reg.reset_counter2 = 0;
-
-	/*
-	 * Compute the performance counter ctrl word.
-	 * For now, count kernel and user mode.
-	 */
-	if (cfg[0].enabled) {
-		ctrl |= LOONGSON2_PERFCTRL_EVENT(0, cfg[0].event);
-		reg.reset_counter1 = 0x80000000ULL - cfg[0].count;
-	}
-
-	if (cfg[1].enabled) {
-		ctrl |= LOONGSON2_PERFCTRL_EVENT(1, cfg[1].event);
-		reg.reset_counter2 = 0x80000000ULL - cfg[1].count;
-	}
-
-	if (cfg[0].enabled || cfg[1].enabled) {
-		ctrl |= LOONGSON2_PERFCTRL_EXL | LOONGSON2_PERFCTRL_ENABLE;
-		if (cfg[0].kernel || cfg[1].kernel)
-			ctrl |= LOONGSON2_PERFCTRL_KERNEL;
-		if (cfg[0].user || cfg[1].user)
-			ctrl |= LOONGSON2_PERFCTRL_USER;
-	}
-
-	reg.ctrl = ctrl;
-
-	reg.cnt1_enabled = cfg[0].enabled;
-	reg.cnt2_enabled = cfg[1].enabled;
-}
-
-static void loongson2_cpu_setup(void *args)
-{
-	write_c0_perfcnt((reg.reset_counter2 << 32) | reg.reset_counter1);
-}
-
-static void loongson2_cpu_start(void *args)
-{
-	/* Start all counters on current CPU */
-	if (reg.cnt1_enabled || reg.cnt2_enabled)
-		write_c0_perfctrl(reg.ctrl);
-}
-
-static void loongson2_cpu_stop(void *args)
-{
-	/* Stop all counters on current CPU */
-	write_c0_perfctrl(0);
-	memset(&reg, 0, sizeof(reg));
-}
-
-static irqreturn_t loongson2_perfcount_handler(int irq, void *dev_id)
-{
-	uint64_t counter, counter1, counter2;
-	struct pt_regs *regs = get_irq_regs();
-	int enabled;
-
-	/* Check whether the irq belongs to me */
-	enabled = read_c0_perfctrl() & LOONGSON2_PERFCTRL_ENABLE;
-	if (!enabled)
-		return IRQ_NONE;
-	enabled = reg.cnt1_enabled | reg.cnt2_enabled;
-	if (!enabled)
-		return IRQ_NONE;
-
-	counter = read_c0_perfcnt();
-	counter1 = counter & 0xffffffff;
-	counter2 = counter >> 32;
-
-	if (counter1 & LOONGSON2_PERFCNT_OVERFLOW) {
-		if (reg.cnt1_enabled)
-			oprofile_add_sample(regs, 0);
-		counter1 = reg.reset_counter1;
-	}
-	if (counter2 & LOONGSON2_PERFCNT_OVERFLOW) {
-		if (reg.cnt2_enabled)
-			oprofile_add_sample(regs, 1);
-		counter2 = reg.reset_counter2;
-	}
-
-	write_c0_perfcnt((counter2 << 32) | counter1);
-
-	return IRQ_HANDLED;
-}
-
-static int __init loongson2_init(void)
-{
-	return request_irq(LOONGSON2_PERFCNT_IRQ, loongson2_perfcount_handler,
-			   IRQF_SHARED, "Perfcounter", oprofid);
-}
-
-static void loongson2_exit(void)
-{
-	reset_counters(NULL);
-	free_irq(LOONGSON2_PERFCNT_IRQ, oprofid);
-}
-
-struct op_mips_model op_model_loongson2_ops = {
-	.reg_setup = loongson2_reg_setup,
-	.cpu_setup = loongson2_cpu_setup,
-	.init = loongson2_init,
-	.exit = loongson2_exit,
-	.cpu_start = loongson2_cpu_start,
-	.cpu_stop = loongson2_cpu_stop,
-	.cpu_type = LOONGSON2_CPU_TYPE,
-	.num_counters = 2
-};
diff --git a/arch/mips/oprofile/op_model_loongson3.c b/arch/mips/oprofile/op_model_loongson3.c
deleted file mode 100644
index 436b1fc99f2c..000000000000
--- a/arch/mips/oprofile/op_model_loongson3.c
+++ /dev/null
@@ -1,213 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-#include <linux/init.h>
-#include <linux/cpu.h>
-#include <linux/smp.h>
-#include <linux/proc_fs.h>
-#include <linux/oprofile.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/uaccess.h>
-#include <irq.h>
-#include <loongson.h>
-#include "op_impl.h"
-
-#define LOONGSON3_PERFCNT_OVERFLOW	(1ULL << 63)
-
-#define LOONGSON3_PERFCTRL_EXL		(1UL << 0)
-#define LOONGSON3_PERFCTRL_KERNEL	(1UL << 1)
-#define LOONGSON3_PERFCTRL_SUPERVISOR	(1UL << 2)
-#define LOONGSON3_PERFCTRL_USER		(1UL << 3)
-#define LOONGSON3_PERFCTRL_ENABLE	(1UL << 4)
-#define LOONGSON3_PERFCTRL_W		(1UL << 30)
-#define LOONGSON3_PERFCTRL_M		(1UL << 31)
-#define LOONGSON3_PERFCTRL_EVENT(idx, event) \
-	(((event) & (idx ? 0x0f : 0x3f)) << 5)
-
-/* Loongson-3 PerfCount performance counter1 register */
-#define read_c0_perflo1() __read_64bit_c0_register($25, 0)
-#define write_c0_perflo1(val) __write_64bit_c0_register($25, 0, val)
-#define read_c0_perfhi1() __read_64bit_c0_register($25, 1)
-#define write_c0_perfhi1(val) __write_64bit_c0_register($25, 1, val)
-
-/* Loongson-3 PerfCount performance counter2 register */
-#define read_c0_perflo2() __read_64bit_c0_register($25, 2)
-#define write_c0_perflo2(val) __write_64bit_c0_register($25, 2, val)
-#define read_c0_perfhi2() __read_64bit_c0_register($25, 3)
-#define write_c0_perfhi2(val) __write_64bit_c0_register($25, 3, val)
-
-static int (*save_perf_irq)(void);
-
-static struct loongson3_register_config {
-	unsigned int control1;
-	unsigned int control2;
-	unsigned long long reset_counter1;
-	unsigned long long reset_counter2;
-	int ctr1_enable, ctr2_enable;
-} reg;
-
-static void reset_counters(void *arg)
-{
-	write_c0_perfhi1(0);
-	write_c0_perfhi2(0);
-	write_c0_perflo1(0xc0000000);
-	write_c0_perflo2(0x40000000);
-}
-
-/* Compute all of the registers in preparation for enabling profiling. */
-static void loongson3_reg_setup(struct op_counter_config *ctr)
-{
-	unsigned int control1 = 0;
-	unsigned int control2 = 0;
-
-	reg.reset_counter1 = 0;
-	reg.reset_counter2 = 0;
-	/* Compute the performance counter control word. */
-	/* For now count kernel and user mode */
-	if (ctr[0].enabled) {
-		control1 |= LOONGSON3_PERFCTRL_EVENT(0, ctr[0].event) |
-					LOONGSON3_PERFCTRL_ENABLE;
-		if (ctr[0].kernel)
-			control1 |= LOONGSON3_PERFCTRL_KERNEL;
-		if (ctr[0].user)
-			control1 |= LOONGSON3_PERFCTRL_USER;
-		reg.reset_counter1 = 0x8000000000000000ULL - ctr[0].count;
-	}
-
-	if (ctr[1].enabled) {
-		control2 |= LOONGSON3_PERFCTRL_EVENT(1, ctr[1].event) |
-					LOONGSON3_PERFCTRL_ENABLE;
-		if (ctr[1].kernel)
-			control2 |= LOONGSON3_PERFCTRL_KERNEL;
-		if (ctr[1].user)
-			control2 |= LOONGSON3_PERFCTRL_USER;
-		reg.reset_counter2 = 0x8000000000000000ULL - ctr[1].count;
-	}
-
-	if (ctr[0].enabled)
-		control1 |= LOONGSON3_PERFCTRL_EXL;
-	if (ctr[1].enabled)
-		control2 |= LOONGSON3_PERFCTRL_EXL;
-
-	reg.control1 = control1;
-	reg.control2 = control2;
-	reg.ctr1_enable = ctr[0].enabled;
-	reg.ctr2_enable = ctr[1].enabled;
-}
-
-/* Program all of the registers in preparation for enabling profiling. */
-static void loongson3_cpu_setup(void *args)
-{
-	uint64_t perfcount1, perfcount2;
-
-	perfcount1 = reg.reset_counter1;
-	perfcount2 = reg.reset_counter2;
-	write_c0_perfhi1(perfcount1);
-	write_c0_perfhi2(perfcount2);
-}
-
-static void loongson3_cpu_start(void *args)
-{
-	/* Start all counters on current CPU */
-	reg.control1 |= (LOONGSON3_PERFCTRL_W|LOONGSON3_PERFCTRL_M);
-	reg.control2 |= (LOONGSON3_PERFCTRL_W|LOONGSON3_PERFCTRL_M);
-
-	if (reg.ctr1_enable)
-		write_c0_perflo1(reg.control1);
-	if (reg.ctr2_enable)
-		write_c0_perflo2(reg.control2);
-}
-
-static void loongson3_cpu_stop(void *args)
-{
-	/* Stop all counters on current CPU */
-	write_c0_perflo1(0xc0000000);
-	write_c0_perflo2(0x40000000);
-	memset(&reg, 0, sizeof(reg));
-}
-
-static int loongson3_perfcount_handler(void)
-{
-	unsigned long flags;
-	uint64_t counter1, counter2;
-	uint32_t cause, handled = IRQ_NONE;
-	struct pt_regs *regs = get_irq_regs();
-
-	cause = read_c0_cause();
-	if (!(cause & CAUSEF_PCI))
-		return handled;
-
-	counter1 = read_c0_perfhi1();
-	counter2 = read_c0_perfhi2();
-
-	local_irq_save(flags);
-
-	if (counter1 & LOONGSON3_PERFCNT_OVERFLOW) {
-		if (reg.ctr1_enable)
-			oprofile_add_sample(regs, 0);
-		counter1 = reg.reset_counter1;
-	}
-	if (counter2 & LOONGSON3_PERFCNT_OVERFLOW) {
-		if (reg.ctr2_enable)
-			oprofile_add_sample(regs, 1);
-		counter2 = reg.reset_counter2;
-	}
-
-	local_irq_restore(flags);
-
-	write_c0_perfhi1(counter1);
-	write_c0_perfhi2(counter2);
-
-	if (!(cause & CAUSEF_TI))
-		handled = IRQ_HANDLED;
-
-	return handled;
-}
-
-static int loongson3_starting_cpu(unsigned int cpu)
-{
-	write_c0_perflo1(reg.control1);
-	write_c0_perflo2(reg.control2);
-	return 0;
-}
-
-static int loongson3_dying_cpu(unsigned int cpu)
-{
-	write_c0_perflo1(0xc0000000);
-	write_c0_perflo2(0x40000000);
-	return 0;
-}
-
-static int __init loongson3_init(void)
-{
-	on_each_cpu(reset_counters, NULL, 1);
-	cpuhp_setup_state_nocalls(CPUHP_AP_MIPS_OP_LOONGSON3_STARTING,
-				  "mips/oprofile/loongson3:starting",
-				  loongson3_starting_cpu, loongson3_dying_cpu);
-	save_perf_irq = perf_irq;
-	perf_irq = loongson3_perfcount_handler;
-
-	return 0;
-}
-
-static void loongson3_exit(void)
-{
-	on_each_cpu(reset_counters, NULL, 1);
-	cpuhp_remove_state_nocalls(CPUHP_AP_MIPS_OP_LOONGSON3_STARTING);
-	perf_irq = save_perf_irq;
-}
-
-struct op_mips_model op_model_loongson3_ops = {
-	.reg_setup	= loongson3_reg_setup,
-	.cpu_setup	= loongson3_cpu_setup,
-	.init		= loongson3_init,
-	.exit		= loongson3_exit,
-	.cpu_start	= loongson3_cpu_start,
-	.cpu_stop	= loongson3_cpu_stop,
-	.cpu_type	= "mips/loongson3",
-	.num_counters	= 2
-};
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
deleted file mode 100644
index 55d7b7fd18b6..000000000000
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ /dev/null
@@ -1,479 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2004, 05, 06 by Ralf Baechle
- * Copyright (C) 2005 by MIPS Technologies, Inc.
- */
-#include <linux/cpumask.h>
-#include <linux/oprofile.h>
-#include <linux/interrupt.h>
-#include <linux/smp.h>
-#include <asm/irq_regs.h>
-#include <asm/time.h>
-
-#include "op_impl.h"
-
-#define M_PERFCTL_EVENT(event)		(((event) << MIPS_PERFCTRL_EVENT_S) & \
-					 MIPS_PERFCTRL_EVENT)
-#define M_PERFCTL_VPEID(vpe)		((vpe)	  << MIPS_PERFCTRL_VPEID_S)
-
-#define M_COUNTER_OVERFLOW		(1UL	  << 31)
-
-static int (*save_perf_irq)(void);
-static int perfcount_irq;
-
-/*
- * XLR has only one set of counters per core. Designate the
- * first hardware thread in the core for setup and init.
- * Skip CPUs with non-zero hardware thread id (4 hwt per core)
- */
-#if defined(CONFIG_CPU_XLR) && defined(CONFIG_SMP)
-#define oprofile_skip_cpu(c)	((cpu_logical_map(c) & 0x3) != 0)
-#else
-#define oprofile_skip_cpu(c)	0
-#endif
-
-#ifdef CONFIG_MIPS_MT_SMP
-#define WHAT		(MIPS_PERFCTRL_MT_EN_VPE | \
-			 M_PERFCTL_VPEID(cpu_vpe_id(&current_cpu_data)))
-#define vpe_id()	(cpu_has_mipsmt_pertccounters ? \
-			0 : cpu_vpe_id(&current_cpu_data))
-
-/*
- * The number of bits to shift to convert between counters per core and
- * counters per VPE.  There is no reasonable interface atm to obtain the
- * number of VPEs used by Linux and in the 34K this number is fixed to two
- * anyways so we hardcore a few things here for the moment.  The way it's
- * done here will ensure that oprofile VSMP kernel will run right on a lesser
- * core like a 24K also or with maxcpus=1.
- */
-static inline unsigned int vpe_shift(void)
-{
-	if (num_possible_cpus() > 1)
-		return 1;
-
-	return 0;
-}
-
-#else
-
-#define WHAT		0
-#define vpe_id()	0
-
-static inline unsigned int vpe_shift(void)
-{
-	return 0;
-}
-
-#endif
-
-static inline unsigned int counters_total_to_per_cpu(unsigned int counters)
-{
-	return counters >> vpe_shift();
-}
-
-static inline unsigned int counters_per_cpu_to_total(unsigned int counters)
-{
-	return counters << vpe_shift();
-}
-
-#define __define_perf_accessors(r, n, np)				\
-									\
-static inline unsigned int r_c0_ ## r ## n(void)			\
-{									\
-	unsigned int cpu = vpe_id();					\
-									\
-	switch (cpu) {							\
-	case 0:								\
-		return read_c0_ ## r ## n();				\
-	case 1:								\
-		return read_c0_ ## r ## np();				\
-	default:							\
-		BUG();							\
-	}								\
-	return 0;							\
-}									\
-									\
-static inline void w_c0_ ## r ## n(unsigned int value)			\
-{									\
-	unsigned int cpu = vpe_id();					\
-									\
-	switch (cpu) {							\
-	case 0:								\
-		write_c0_ ## r ## n(value);				\
-		return;							\
-	case 1:								\
-		write_c0_ ## r ## np(value);				\
-		return;							\
-	default:							\
-		BUG();							\
-	}								\
-	return;								\
-}									\
-
-__define_perf_accessors(perfcntr, 0, 2)
-__define_perf_accessors(perfcntr, 1, 3)
-__define_perf_accessors(perfcntr, 2, 0)
-__define_perf_accessors(perfcntr, 3, 1)
-
-__define_perf_accessors(perfctrl, 0, 2)
-__define_perf_accessors(perfctrl, 1, 3)
-__define_perf_accessors(perfctrl, 2, 0)
-__define_perf_accessors(perfctrl, 3, 1)
-
-struct op_mips_model op_model_mipsxx_ops;
-
-static struct mipsxx_register_config {
-	unsigned int control[4];
-	unsigned int counter[4];
-} reg;
-
-/* Compute all of the registers in preparation for enabling profiling.	*/
-
-static void mipsxx_reg_setup(struct op_counter_config *ctr)
-{
-	unsigned int counters = op_model_mipsxx_ops.num_counters;
-	int i;
-
-	/* Compute the performance counter control word.  */
-	for (i = 0; i < counters; i++) {
-		reg.control[i] = 0;
-		reg.counter[i] = 0;
-
-		if (!ctr[i].enabled)
-			continue;
-
-		reg.control[i] = M_PERFCTL_EVENT(ctr[i].event) |
-				 MIPS_PERFCTRL_IE;
-		if (ctr[i].kernel)
-			reg.control[i] |= MIPS_PERFCTRL_K;
-		if (ctr[i].user)
-			reg.control[i] |= MIPS_PERFCTRL_U;
-		if (ctr[i].exl)
-			reg.control[i] |= MIPS_PERFCTRL_EXL;
-		if (boot_cpu_type() == CPU_XLR)
-			reg.control[i] |= XLR_PERFCTRL_ALLTHREADS;
-		reg.counter[i] = 0x80000000 - ctr[i].count;
-	}
-}
-
-/* Program all of the registers in preparation for enabling profiling.	*/
-
-static void mipsxx_cpu_setup(void *args)
-{
-	unsigned int counters = op_model_mipsxx_ops.num_counters;
-
-	if (oprofile_skip_cpu(smp_processor_id()))
-		return;
-
-	switch (counters) {
-	case 4:
-		w_c0_perfctrl3(0);
-		w_c0_perfcntr3(reg.counter[3]);
-		fallthrough;
-	case 3:
-		w_c0_perfctrl2(0);
-		w_c0_perfcntr2(reg.counter[2]);
-		fallthrough;
-	case 2:
-		w_c0_perfctrl1(0);
-		w_c0_perfcntr1(reg.counter[1]);
-		fallthrough;
-	case 1:
-		w_c0_perfctrl0(0);
-		w_c0_perfcntr0(reg.counter[0]);
-	}
-}
-
-/* Start all counters on current CPU */
-static void mipsxx_cpu_start(void *args)
-{
-	unsigned int counters = op_model_mipsxx_ops.num_counters;
-
-	if (oprofile_skip_cpu(smp_processor_id()))
-		return;
-
-	switch (counters) {
-	case 4:
-		w_c0_perfctrl3(WHAT | reg.control[3]);
-		fallthrough;
-	case 3:
-		w_c0_perfctrl2(WHAT | reg.control[2]);
-		fallthrough;
-	case 2:
-		w_c0_perfctrl1(WHAT | reg.control[1]);
-		fallthrough;
-	case 1:
-		w_c0_perfctrl0(WHAT | reg.control[0]);
-	}
-}
-
-/* Stop all counters on current CPU */
-static void mipsxx_cpu_stop(void *args)
-{
-	unsigned int counters = op_model_mipsxx_ops.num_counters;
-
-	if (oprofile_skip_cpu(smp_processor_id()))
-		return;
-
-	switch (counters) {
-	case 4:
-		w_c0_perfctrl3(0);
-		fallthrough;
-	case 3:
-		w_c0_perfctrl2(0);
-		fallthrough;
-	case 2:
-		w_c0_perfctrl1(0);
-		fallthrough;
-	case 1:
-		w_c0_perfctrl0(0);
-	}
-}
-
-static int mipsxx_perfcount_handler(void)
-{
-	unsigned int counters = op_model_mipsxx_ops.num_counters;
-	unsigned int control;
-	unsigned int counter;
-	int handled = IRQ_NONE;
-
-	if (cpu_has_mips_r2 && !(read_c0_cause() & CAUSEF_PCI))
-		return handled;
-
-	switch (counters) {
-#define HANDLE_COUNTER(n)						\
-	case n + 1:							\
-		control = r_c0_perfctrl ## n();				\
-		counter = r_c0_perfcntr ## n();				\
-		if ((control & MIPS_PERFCTRL_IE) &&			\
-		    (counter & M_COUNTER_OVERFLOW)) {			\
-			oprofile_add_sample(get_irq_regs(), n);		\
-			w_c0_perfcntr ## n(reg.counter[n]);		\
-			handled = IRQ_HANDLED;				\
-		}
-	HANDLE_COUNTER(3)
-	fallthrough;
-	HANDLE_COUNTER(2)
-	fallthrough;
-	HANDLE_COUNTER(1)
-	fallthrough;
-	HANDLE_COUNTER(0)
-	}
-
-	return handled;
-}
-
-static inline int __n_counters(void)
-{
-	if (!cpu_has_perf)
-		return 0;
-	if (!(read_c0_perfctrl0() & MIPS_PERFCTRL_M))
-		return 1;
-	if (!(read_c0_perfctrl1() & MIPS_PERFCTRL_M))
-		return 2;
-	if (!(read_c0_perfctrl2() & MIPS_PERFCTRL_M))
-		return 3;
-
-	return 4;
-}
-
-static inline int n_counters(void)
-{
-	int counters;
-
-	switch (current_cpu_type()) {
-	case CPU_R10000:
-		counters = 2;
-		break;
-
-	case CPU_R12000:
-	case CPU_R14000:
-	case CPU_R16000:
-		counters = 4;
-		break;
-
-	default:
-		counters = __n_counters();
-	}
-
-	return counters;
-}
-
-static void reset_counters(void *arg)
-{
-	int counters = (int)(long)arg;
-	switch (counters) {
-	case 4:
-		w_c0_perfctrl3(0);
-		w_c0_perfcntr3(0);
-		fallthrough;
-	case 3:
-		w_c0_perfctrl2(0);
-		w_c0_perfcntr2(0);
-		fallthrough;
-	case 2:
-		w_c0_perfctrl1(0);
-		w_c0_perfcntr1(0);
-		fallthrough;
-	case 1:
-		w_c0_perfctrl0(0);
-		w_c0_perfcntr0(0);
-	}
-}
-
-static irqreturn_t mipsxx_perfcount_int(int irq, void *dev_id)
-{
-	return mipsxx_perfcount_handler();
-}
-
-static int __init mipsxx_init(void)
-{
-	int counters;
-
-	counters = n_counters();
-	if (counters == 0) {
-		printk(KERN_ERR "Oprofile: CPU has no performance counters\n");
-		return -ENODEV;
-	}
-
-#ifdef CONFIG_MIPS_MT_SMP
-	if (!cpu_has_mipsmt_pertccounters)
-		counters = counters_total_to_per_cpu(counters);
-#endif
-	on_each_cpu(reset_counters, (void *)(long)counters, 1);
-
-	op_model_mipsxx_ops.num_counters = counters;
-	switch (current_cpu_type()) {
-	case CPU_M14KC:
-		op_model_mipsxx_ops.cpu_type = "mips/M14Kc";
-		break;
-
-	case CPU_M14KEC:
-		op_model_mipsxx_ops.cpu_type = "mips/M14KEc";
-		break;
-
-	case CPU_20KC:
-		op_model_mipsxx_ops.cpu_type = "mips/20K";
-		break;
-
-	case CPU_24K:
-		op_model_mipsxx_ops.cpu_type = "mips/24K";
-		break;
-
-	case CPU_25KF:
-		op_model_mipsxx_ops.cpu_type = "mips/25K";
-		break;
-
-	case CPU_1004K:
-	case CPU_34K:
-		op_model_mipsxx_ops.cpu_type = "mips/34K";
-		break;
-
-	case CPU_1074K:
-	case CPU_74K:
-		op_model_mipsxx_ops.cpu_type = "mips/74K";
-		break;
-
-	case CPU_INTERAPTIV:
-		op_model_mipsxx_ops.cpu_type = "mips/interAptiv";
-		break;
-
-	case CPU_PROAPTIV:
-		op_model_mipsxx_ops.cpu_type = "mips/proAptiv";
-		break;
-
-	case CPU_P5600:
-		op_model_mipsxx_ops.cpu_type = "mips/P5600";
-		break;
-
-	case CPU_I6400:
-		op_model_mipsxx_ops.cpu_type = "mips/I6400";
-		break;
-
-	case CPU_M5150:
-		op_model_mipsxx_ops.cpu_type = "mips/M5150";
-		break;
-
-	case CPU_5KC:
-		op_model_mipsxx_ops.cpu_type = "mips/5K";
-		break;
-
-	case CPU_R10000:
-		if ((current_cpu_data.processor_id & 0xff) == 0x20)
-			op_model_mipsxx_ops.cpu_type = "mips/r10000-v2.x";
-		else
-			op_model_mipsxx_ops.cpu_type = "mips/r10000";
-		break;
-
-	case CPU_R12000:
-	case CPU_R14000:
-		op_model_mipsxx_ops.cpu_type = "mips/r12000";
-		break;
-
-	case CPU_R16000:
-		op_model_mipsxx_ops.cpu_type = "mips/r16000";
-		break;
-
-	case CPU_SB1:
-	case CPU_SB1A:
-		op_model_mipsxx_ops.cpu_type = "mips/sb1";
-		break;
-
-	case CPU_LOONGSON32:
-		op_model_mipsxx_ops.cpu_type = "mips/loongson1";
-		break;
-
-	case CPU_XLR:
-		op_model_mipsxx_ops.cpu_type = "mips/xlr";
-		break;
-
-	default:
-		printk(KERN_ERR "Profiling unsupported for this CPU\n");
-
-		return -ENODEV;
-	}
-
-	save_perf_irq = perf_irq;
-	perf_irq = mipsxx_perfcount_handler;
-
-	if (get_c0_perfcount_int)
-		perfcount_irq = get_c0_perfcount_int();
-	else if (cp0_perfcount_irq >= 0)
-		perfcount_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
-	else
-		perfcount_irq = -1;
-
-	if (perfcount_irq >= 0)
-		return request_irq(perfcount_irq, mipsxx_perfcount_int,
-				   IRQF_PERCPU | IRQF_NOBALANCING |
-				   IRQF_NO_THREAD | IRQF_NO_SUSPEND |
-				   IRQF_SHARED,
-				   "Perfcounter", save_perf_irq);
-
-	return 0;
-}
-
-static void mipsxx_exit(void)
-{
-	int counters = op_model_mipsxx_ops.num_counters;
-
-	if (perfcount_irq >= 0)
-		free_irq(perfcount_irq, save_perf_irq);
-
-	counters = counters_per_cpu_to_total(counters);
-	on_each_cpu(reset_counters, (void *)(long)counters, 1);
-
-	perf_irq = save_perf_irq;
-}
-
-struct op_mips_model op_model_mipsxx_ops = {
-	.reg_setup	= mipsxx_reg_setup,
-	.cpu_setup	= mipsxx_cpu_setup,
-	.init		= mipsxx_init,
-	.exit		= mipsxx_exit,
-	.cpu_start	= mipsxx_cpu_start,
-	.cpu_stop	= mipsxx_cpu_stop,
-};