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, 134 deletions

diff --git a/arch/m32r/mm/fault-nommu.c b/arch/m32r/mm/fault-nommu.c
deleted file mode 100644
index 240e00067d5e..000000000000
--- a/arch/m32r/mm/fault-nommu.c
+++ /dev/null
@@ -1,134 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *  linux/arch/m32r/mm/fault.c
- *
- *  Copyright (c) 2001, 2002  Hitoshi Yamamoto, and H. Kondo
- *
- *  Some code taken from i386 version.
- *    Copyright (C) 1995  Linus Torvalds
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/vt_kern.h>              /* For unblank_screen() */
-
-#include <asm/m32r.h>
-#include <linux/uaccess.h>
-#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
-#include <asm/hardirq.h>
-#include <asm/mmu_context.h>
-
-extern void die(const char *, struct pt_regs *, long);
-
-#ifndef CONFIG_SMP
-asmlinkage unsigned int tlb_entry_i_dat;
-asmlinkage unsigned int tlb_entry_d_dat;
-#define tlb_entry_i tlb_entry_i_dat
-#define tlb_entry_d tlb_entry_d_dat
-#else
-unsigned int tlb_entry_i_dat[NR_CPUS];
-unsigned int tlb_entry_d_dat[NR_CPUS];
-#define tlb_entry_i tlb_entry_i_dat[smp_processor_id()]
-#define tlb_entry_d tlb_entry_d_dat[smp_processor_id()]
-#endif
-
-void do_BUG(const char *file, int line)
-{
-        bust_spinlocks(1);
-        printk("kernel BUG at %s:%d!\n", file, line);
-}
-
-/*======================================================================*
- * do_page_fault()
- *======================================================================*
- * This routine handles page faults.  It determines the address,
- * and the problem, and then passes it off to one of the appropriate
- * routines.
- *
- * ARGUMENT:
- *  regs       : M32R SP reg.
- *  error_code : See below
- *  address    : M32R MMU MDEVA reg. (Operand ACE)
- *             : M32R BPC reg. (Instruction ACE)
- *
- * error_code :
- *  bit 0 == 0 means no page found, 1 means protection fault
- *  bit 1 == 0 means read, 1 means write
- *  bit 2 == 0 means kernel, 1 means user-mode
- *======================================================================*/
-asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
-  unsigned long address)
-{
-
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- */
-
-        bust_spinlocks(1);
-
-        if (address < PAGE_SIZE)
-                printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
-        else
-                printk(KERN_ALERT "Unable to handle kernel paging request");
-        printk(" at virtual address %08lx\n",address);
-        printk(" printing bpc:\n");
-        printk(KERN_ALERT "bpc = %08lx\n", regs->bpc);
-
-        die("Oops", regs, error_code);
-        bust_spinlocks(0);
-        do_exit(SIGKILL);
-}
-
-/*======================================================================*
- * update_mmu_cache()
- *======================================================================*/
-void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr,
-        pte_t *ptep)
-{
-        BUG();
-}
-
-/*======================================================================*
- * flush_tlb_page() : flushes one page
- *======================================================================*/
-void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
-        BUG();
-}
-
-/*======================================================================*
- * flush_tlb_range() : flushes a range of pages
- *======================================================================*/
-void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
-        unsigned long end)
-{
-        BUG();
-}
-
-/*======================================================================*
- * flush_tlb_mm() : flushes the specified mm context TLB's
- *======================================================================*/
-void local_flush_tlb_mm(struct mm_struct *mm)
-{
-        BUG();
-}
-
-/*======================================================================*
- * flush_tlb_all() : flushes all processes TLBs
- *======================================================================*/
-void local_flush_tlb_all(void)
-{
-        BUG();
-}