arch: remove m32r port

The Mitsubishi/Renesas m32r architecture has been around for many years,
but the Linux port has been obsolete for a very long time as well, with
the last significant updates done for linux-2.6.14.

While some m32r microcontrollers are still being marketed by Renesas,
those are apparently no longer possible to support, mainly due to the
lack of an external memory interface.

Hirokazu Takata was the maintainer until the architecture got marked
Orphaned in 2014.

Link: http://www.linux-m32r.org/
Link: https://www.renesas.com/en-eu/products/microcontrollers-microprocessors/m32r.html
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 836 deletions

diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
deleted file mode 100644
index 564052e3d3a0..000000000000
--- a/arch/m32r/kernel/smp.c
+++ /dev/null
@@ -1,836 +0,0 @@
-/*
- *  linux/arch/m32r/kernel/smp.c
- *
- *  M32R SMP support routines.
- *
- *  Copyright (c) 2001, 2002  Hitoshi Yamamoto
- *
- *  Taken from i386 version.
- *    (c) 1995 Alan Cox, Building #3 <alan@redhat.com>
- *    (c) 1998-99, 2000 Ingo Molnar <mingo@redhat.com>
- *
- *  This code is released under the GNU General Public License version 2 or
- *  later.
- */
-
-#undef DEBUG_SMP
-
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/profile.h>
-#include <linux/cpu.h>
-
-#include <asm/cacheflush.h>
-#include <asm/pgalloc.h>
-#include <linux/atomic.h>
-#include <asm/io.h>
-#include <asm/mmu_context.h>
-#include <asm/m32r.h>
-#include <asm/tlbflush.h>
-
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-/* Data structures and variables                                             */
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-
-/*
- * For flush_cache_all()
- */
-static DEFINE_SPINLOCK(flushcache_lock);
-static volatile unsigned long flushcache_cpumask = 0;
-
-/*
- * For flush_tlb_others()
- */
-static cpumask_t flush_cpumask;
-static struct mm_struct *flush_mm;
-static struct vm_area_struct *flush_vma;
-static volatile unsigned long flush_va;
-static DEFINE_SPINLOCK(tlbstate_lock);
-#define FLUSH_ALL 0xffffffff
-
-DECLARE_PER_CPU(int, prof_multiplier);
-DECLARE_PER_CPU(int, prof_old_multiplier);
-DECLARE_PER_CPU(int, prof_counter);
-
-extern spinlock_t ipi_lock[];
-
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-/* Function Prototypes                                                       */
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-
-void smp_reschedule_interrupt(void);
-void smp_flush_cache_all_interrupt(void);
-
-static void flush_tlb_all_ipi(void *);
-static void flush_tlb_others(cpumask_t, struct mm_struct *,
-	struct vm_area_struct *, unsigned long);
-
-void smp_invalidate_interrupt(void);
-
-static void stop_this_cpu(void *);
-
-void smp_ipi_timer_interrupt(struct pt_regs *);
-void smp_local_timer_interrupt(void);
-
-static void send_IPI_allbutself(int, int);
-static void send_IPI_mask(const struct cpumask *, int, int);
-
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-/* Rescheduling request Routines                                             */
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-
-/*==========================================================================*
- * Name:         smp_send_reschedule
- *
- * Description:  This routine requests other CPU to execute rescheduling.
- *               1.Send 'RESCHEDULE_IPI' to other CPU.
- *                 Request other CPU to execute 'smp_reschedule_interrupt()'.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    cpu_id - Target CPU ID
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-void smp_send_reschedule(int cpu_id)
-{
-	WARN_ON(cpu_is_offline(cpu_id));
-	send_IPI_mask(cpumask_of(cpu_id), RESCHEDULE_IPI, 1);
-}
-
-/*==========================================================================*
- * Name:         smp_reschedule_interrupt
- *
- * Description:  This routine executes on CPU which received
- *               'RESCHEDULE_IPI'.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    NONE
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-void smp_reschedule_interrupt(void)
-{
-	scheduler_ipi();
-}
-
-/*==========================================================================*
- * Name:         smp_flush_cache_all
- *
- * Description:  This routine sends a 'INVALIDATE_CACHE_IPI' to all other
- *               CPUs in the system.
- *
- * Born on Date: 2003-05-28
- *
- * Arguments:    NONE
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-void smp_flush_cache_all(void)
-{
-	cpumask_t cpumask;
-	unsigned long *mask;
-
-	preempt_disable();
-	cpumask_copy(&cpumask, cpu_online_mask);
-	cpumask_clear_cpu(smp_processor_id(), &cpumask);
-	spin_lock(&flushcache_lock);
-	mask=cpumask_bits(&cpumask);
-	atomic_or(*mask, (atomic_t *)&flushcache_cpumask);
-	send_IPI_mask(&cpumask, INVALIDATE_CACHE_IPI, 0);
-	_flush_cache_copyback_all();
-	while (flushcache_cpumask)
-		mb();
-	spin_unlock(&flushcache_lock);
-	preempt_enable();
-}
-EXPORT_SYMBOL(smp_flush_cache_all);
-
-void smp_flush_cache_all_interrupt(void)
-{
-	_flush_cache_copyback_all();
-	clear_bit(smp_processor_id(), &flushcache_cpumask);
-}
-
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-/* TLB flush request Routines                                                */
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-
-/*==========================================================================*
- * Name:         smp_flush_tlb_all
- *
- * Description:  This routine flushes all processes TLBs.
- *               1.Request other CPU to execute 'flush_tlb_all_ipi()'.
- *               2.Execute 'do_flush_tlb_all_local()'.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    NONE
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-void smp_flush_tlb_all(void)
-{
-	unsigned long flags;
-
-	preempt_disable();
-	local_irq_save(flags);
-	__flush_tlb_all();
-	local_irq_restore(flags);
-	smp_call_function(flush_tlb_all_ipi, NULL, 1);
-	preempt_enable();
-}
-
-/*==========================================================================*
- * Name:         flush_tlb_all_ipi
- *
- * Description:  This routine flushes all local TLBs.
- *               1.Execute 'do_flush_tlb_all_local()'.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    *info - not used
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-static void flush_tlb_all_ipi(void *info)
-{
-	__flush_tlb_all();
-}
-
-/*==========================================================================*
- * Name:         smp_flush_tlb_mm
- *
- * Description:  This routine flushes the specified mm context TLB's.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    *mm - a pointer to the mm struct for flush TLB
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-void smp_flush_tlb_mm(struct mm_struct *mm)
-{
-	int cpu_id;
-	cpumask_t cpu_mask;
-	unsigned long *mmc;
-	unsigned long flags;
-
-	preempt_disable();
-	cpu_id = smp_processor_id();
-	mmc = &mm->context[cpu_id];
-	cpumask_copy(&cpu_mask, mm_cpumask(mm));
-	cpumask_clear_cpu(cpu_id, &cpu_mask);
-
-	if (*mmc != NO_CONTEXT) {
-		local_irq_save(flags);
-		*mmc = NO_CONTEXT;
-		if (mm == current->mm)
-			activate_context(mm);
-		else
-			cpumask_clear_cpu(cpu_id, mm_cpumask(mm));
-		local_irq_restore(flags);
-	}
-	if (!cpumask_empty(&cpu_mask))
-		flush_tlb_others(cpu_mask, mm, NULL, FLUSH_ALL);
-
-	preempt_enable();
-}
-
-/*==========================================================================*
- * Name:         smp_flush_tlb_range
- *
- * Description:  This routine flushes a range of pages.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    *mm - a pointer to the mm struct for flush TLB
- *               start - not used
- *               end - not used
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-void smp_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
-	unsigned long end)
-{
-	smp_flush_tlb_mm(vma->vm_mm);
-}
-
-/*==========================================================================*
- * Name:         smp_flush_tlb_page
- *
- * Description:  This routine flushes one page.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    *vma - a pointer to the vma struct include va
- *               va - virtual address for flush TLB
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long va)
-{
-	struct mm_struct *mm = vma->vm_mm;
-	int cpu_id;
-	cpumask_t cpu_mask;
-	unsigned long *mmc;
-	unsigned long flags;
-
-	preempt_disable();
-	cpu_id = smp_processor_id();
-	mmc = &mm->context[cpu_id];
-	cpumask_copy(&cpu_mask, mm_cpumask(mm));
-	cpumask_clear_cpu(cpu_id, &cpu_mask);
-
-#ifdef DEBUG_SMP
-	if (!mm)
-		BUG();
-#endif
-
-	if (*mmc != NO_CONTEXT) {
-		local_irq_save(flags);
-		va &= PAGE_MASK;
-		va |= (*mmc & MMU_CONTEXT_ASID_MASK);
-		__flush_tlb_page(va);
-		local_irq_restore(flags);
-	}
-	if (!cpumask_empty(&cpu_mask))
-		flush_tlb_others(cpu_mask, mm, vma, va);
-
-	preempt_enable();
-}
-
-/*==========================================================================*
- * Name:         flush_tlb_others
- *
- * Description:  This routine requests other CPU to execute flush TLB.
- *               1.Setup parameters.
- *               2.Send 'INVALIDATE_TLB_IPI' to other CPU.
- *                 Request other CPU to execute 'smp_invalidate_interrupt()'.
- *               3.Wait for other CPUs operation finished.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    cpumask - bitmap of target CPUs
- *               *mm -  a pointer to the mm struct for flush TLB
- *               *vma -  a pointer to the vma struct include va
- *               va - virtual address for flush TLB
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
-	struct vm_area_struct *vma, unsigned long va)
-{
-	unsigned long *mask;
-#ifdef DEBUG_SMP
-	unsigned long flags;
-	__save_flags(flags);
-	if (!(flags & 0x0040))	/* Interrupt Disable NONONO */
-		BUG();
-#endif /* DEBUG_SMP */
-
-	/*
-	 * A couple of (to be removed) sanity checks:
-	 *
-	 * - we do not send IPIs to not-yet booted CPUs.
-	 * - current CPU must not be in mask
-	 * - mask must exist :)
-	 */
-	BUG_ON(cpumask_empty(&cpumask));
-
-	BUG_ON(cpumask_test_cpu(smp_processor_id(), &cpumask));
-	BUG_ON(!mm);
-
-	/* If a CPU which we ran on has gone down, OK. */
-	cpumask_and(&cpumask, &cpumask, cpu_online_mask);
-	if (cpumask_empty(&cpumask))
-		return;
-
-	/*
-	 * i'm not happy about this global shared spinlock in the
-	 * MM hot path, but we'll see how contended it is.
-	 * Temporarily this turns IRQs off, so that lockups are
-	 * detected by the NMI watchdog.
-	 */
-	spin_lock(&tlbstate_lock);
-
-	flush_mm = mm;
-	flush_vma = vma;
-	flush_va = va;
-	mask=cpumask_bits(&cpumask);
-	atomic_or(*mask, (atomic_t *)&flush_cpumask);
-
-	/*
-	 * We have to send the IPI only to
-	 * CPUs affected.
-	 */
-	send_IPI_mask(&cpumask, INVALIDATE_TLB_IPI, 0);
-
-	while (!cpumask_empty(&flush_cpumask)) {
-		/* nothing. lockup detection does not belong here */
-		mb();
-	}
-
-	flush_mm = NULL;
-	flush_vma = NULL;
-	flush_va = 0;
-	spin_unlock(&tlbstate_lock);
-}
-
-/*==========================================================================*
- * Name:         smp_invalidate_interrupt
- *
- * Description:  This routine executes on CPU which received
- *               'INVALIDATE_TLB_IPI'.
- *               1.Flush local TLB.
- *               2.Report flush TLB process was finished.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    NONE
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-void smp_invalidate_interrupt(void)
-{
-	int cpu_id = smp_processor_id();
-	unsigned long *mmc = &flush_mm->context[cpu_id];
-
-	if (!cpumask_test_cpu(cpu_id, &flush_cpumask))
-		return;
-
-	if (flush_va == FLUSH_ALL) {
-		*mmc = NO_CONTEXT;
-		if (flush_mm == current->active_mm)
-			activate_context(flush_mm);
-		else
-			cpumask_clear_cpu(cpu_id, mm_cpumask(flush_mm));
-	} else {
-		unsigned long va = flush_va;
-
-		if (*mmc != NO_CONTEXT) {
-			va &= PAGE_MASK;
-			va |= (*mmc & MMU_CONTEXT_ASID_MASK);
-			__flush_tlb_page(va);
-		}
-	}
-	cpumask_clear_cpu(cpu_id, &flush_cpumask);
-}
-
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-/* Stop CPU request Routines                                                 */
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-
-/*==========================================================================*
- * Name:         smp_send_stop
- *
- * Description:  This routine requests stop all CPUs.
- *               1.Request other CPU to execute 'stop_this_cpu()'.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    NONE
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-void smp_send_stop(void)
-{
-	smp_call_function(stop_this_cpu, NULL, 0);
-}
-
-/*==========================================================================*
- * Name:         stop_this_cpu
- *
- * Description:  This routine halt CPU.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    NONE
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-static void stop_this_cpu(void *dummy)
-{
-	int cpu_id = smp_processor_id();
-
-	/*
-	 * Remove this CPU:
-	 */
-	set_cpu_online(cpu_id, false);
-
-	/*
-	 * PSW IE = 1;
-	 * IMASK = 0;
-	 * goto SLEEP
-	 */
-	local_irq_disable();
-	outl(0, M32R_ICU_IMASK_PORTL);
-	inl(M32R_ICU_IMASK_PORTL);	/* dummy read */
-	local_irq_enable();
-
-	for ( ; ; );
-}
-
-void arch_send_call_function_ipi_mask(const struct cpumask *mask)
-{
-	send_IPI_mask(mask, CALL_FUNCTION_IPI, 0);
-}
-
-void arch_send_call_function_single_ipi(int cpu)
-{
-	send_IPI_mask(cpumask_of(cpu), CALL_FUNC_SINGLE_IPI, 0);
-}
-
-/*==========================================================================*
- * Name:         smp_call_function_interrupt
- *
- * Description:  This routine executes on CPU which received
- *               'CALL_FUNCTION_IPI'.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    NONE
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-void smp_call_function_interrupt(void)
-{
-	irq_enter();
-	generic_smp_call_function_interrupt();
-	irq_exit();
-}
-
-void smp_call_function_single_interrupt(void)
-{
-	irq_enter();
-	generic_smp_call_function_single_interrupt();
-	irq_exit();
-}
-
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-/* Timer Routines                                                            */
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-
-/*==========================================================================*
- * Name:         smp_send_timer
- *
- * Description:  This routine sends a 'LOCAL_TIMER_IPI' to all other CPUs
- *               in the system.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    NONE
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-void smp_send_timer(void)
-{
-	send_IPI_allbutself(LOCAL_TIMER_IPI, 1);
-}
-
-/*==========================================================================*
- * Name:         smp_send_timer
- *
- * Description:  This routine executes on CPU which received
- *               'LOCAL_TIMER_IPI'.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    *regs - a pointer to the saved regster info
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-void smp_ipi_timer_interrupt(struct pt_regs *regs)
-{
-	struct pt_regs *old_regs;
-	old_regs = set_irq_regs(regs);
-	irq_enter();
-	smp_local_timer_interrupt();
-	irq_exit();
-	set_irq_regs(old_regs);
-}
-
-/*==========================================================================*
- * Name:         smp_local_timer_interrupt
- *
- * Description:  Local timer interrupt handler. It does both profiling and
- *               process statistics/rescheduling.
- *               We do profiling in every local tick, statistics/rescheduling
- *               happen only every 'profiling multiplier' ticks. The default
- *               multiplier is 1 and it can be changed by writing the new
- *               multiplier value into /proc/profile.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    *regs - a pointer to the saved regster info
- *
- * Returns:      void (cannot fail)
- *
- * Original:     arch/i386/kernel/apic.c
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- * 2003-06-24 hy  use per_cpu structure.
- *==========================================================================*/
-void smp_local_timer_interrupt(void)
-{
-	int user = user_mode(get_irq_regs());
-	int cpu_id = smp_processor_id();
-
-	/*
-	 * The profiling function is SMP safe. (nothing can mess
-	 * around with "current", and the profiling counters are
-	 * updated with atomic operations). This is especially
-	 * useful with a profiling multiplier != 1
-	 */
-
-	profile_tick(CPU_PROFILING);
-
-	if (--per_cpu(prof_counter, cpu_id) <= 0) {
-		/*
-		 * The multiplier may have changed since the last time we got
-		 * to this point as a result of the user writing to
-		 * /proc/profile. In this case we need to adjust the APIC
-		 * timer accordingly.
-		 *
-		 * Interrupts are already masked off at this point.
-		 */
-		per_cpu(prof_counter, cpu_id)
-			= per_cpu(prof_multiplier, cpu_id);
-		if (per_cpu(prof_counter, cpu_id)
-			!= per_cpu(prof_old_multiplier, cpu_id))
-		{
-			per_cpu(prof_old_multiplier, cpu_id)
-				= per_cpu(prof_counter, cpu_id);
-		}
-
-		update_process_times(user);
-	}
-}
-
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-/* Send IPI Routines                                                         */
-/*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/
-
-/*==========================================================================*
- * Name:         send_IPI_allbutself
- *
- * Description:  This routine sends a IPI to all other CPUs in the system.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    ipi_num - Number of IPI
- *               try -  0 : Send IPI certainly.
- *                     !0 : The following IPI is not sent when Target CPU
- *                          has not received the before IPI.
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-static void send_IPI_allbutself(int ipi_num, int try)
-{
-	cpumask_t cpumask;
-
-	cpumask_copy(&cpumask, cpu_online_mask);
-	cpumask_clear_cpu(smp_processor_id(), &cpumask);
-
-	send_IPI_mask(&cpumask, ipi_num, try);
-}
-
-/*==========================================================================*
- * Name:         send_IPI_mask
- *
- * Description:  This routine sends a IPI to CPUs in the system.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    cpu_mask - Bitmap of target CPUs logical ID
- *               ipi_num - Number of IPI
- *               try -  0 : Send IPI certainly.
- *                     !0 : The following IPI is not sent when Target CPU
- *                          has not received the before IPI.
- *
- * Returns:      void (cannot fail)
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-static void send_IPI_mask(const struct cpumask *cpumask, int ipi_num, int try)
-{
-	cpumask_t physid_mask, tmp;
-	int cpu_id, phys_id;
-	int num_cpus = num_online_cpus();
-
-	if (num_cpus <= 1)	/* NO MP */
-		return;
-
-	cpumask_and(&tmp, cpumask, cpu_online_mask);
-	BUG_ON(!cpumask_equal(cpumask, &tmp));
-
-	cpumask_clear(&physid_mask);
-	for_each_cpu(cpu_id, cpumask) {
-		if ((phys_id = cpu_to_physid(cpu_id)) != -1)
-			cpumask_set_cpu(phys_id, &physid_mask);
-	}
-
-	send_IPI_mask_phys(&physid_mask, ipi_num, try);
-}
-
-/*==========================================================================*
- * Name:         send_IPI_mask_phys
- *
- * Description:  This routine sends a IPI to other CPUs in the system.
- *
- * Born on Date: 2002.02.05
- *
- * Arguments:    cpu_mask - Bitmap of target CPUs physical ID
- *               ipi_num - Number of IPI
- *               try -  0 : Send IPI certainly.
- *                     !0 : The following IPI is not sent when Target CPU
- *                          has not received the before IPI.
- *
- * Returns:      IPICRi regster value.
- *
- * Modification log:
- * Date       Who Description
- * ---------- --- --------------------------------------------------------
- *
- *==========================================================================*/
-unsigned long send_IPI_mask_phys(const cpumask_t *physid_mask, int ipi_num,
-	int try)
-{
-	spinlock_t *ipilock;
-	volatile unsigned long *ipicr_addr;
-	unsigned long ipicr_val;
-	unsigned long my_physid_mask;
-	unsigned long mask = cpumask_bits(physid_mask)[0];
-
-
-	if (mask & ~physids_coerce(phys_cpu_present_map))
-		BUG();
-	if (ipi_num >= NR_IPIS || ipi_num < 0)
-		BUG();
-
-	mask <<= IPI_SHIFT;
-	ipilock = &ipi_lock[ipi_num];
-	ipicr_addr = (volatile unsigned long *)(M32R_ICU_IPICR_ADDR
-		+ (ipi_num << 2));
-	my_physid_mask = ~(1 << smp_processor_id());
-
-	/*
-	 * lock ipi_lock[i]
-	 * check IPICRi == 0
-	 * write IPICRi (send IPIi)
-	 * unlock ipi_lock[i]
-	 */
-	spin_lock(ipilock);
-	__asm__ __volatile__ (
-		";; CHECK IPICRi == 0		\n\t"
-		".fillinsn			\n"
-		"1:				\n\t"
-		"ld	%0, @%1			\n\t"
-		"and	%0, %4			\n\t"
-		"beqz	%0, 2f			\n\t"
-		"bnez	%3, 3f			\n\t"
-		"bra	1b			\n\t"
-		";; WRITE IPICRi (send IPIi)	\n\t"
-		".fillinsn			\n"
-		"2:				\n\t"
-		"st	%2, @%1			\n\t"
-		".fillinsn			\n"
-		"3:				\n\t"
-		: "=&r"(ipicr_val)
-		: "r"(ipicr_addr), "r"(mask), "r"(try), "r"(my_physid_mask)
-		: "memory"
-	);
-	spin_unlock(ipilock);
-
-	return ipicr_val;
-}