arch: remove frv port

The Fujitsu FRV kernel port has been around for a long time, but has not
seen regular updates in several years and instead was marked 'Orphaned'
in 2016 by long-time maintainer David Howells.

The SoC product line apparently is apparently still around in the form
of the Socionext Milbeaut image processor, but this one no longer uses
the FRV CPU cores.

This removes all FRV specific files from the kernel.

Link: http://www.socionext.com/en/products/assp/milbeaut/
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

13 files changed, 0 insertions, 2215 deletions

diff --git a/arch/frv/mm/Makefile b/arch/frv/mm/Makefile
deleted file mode 100644
index 1bca5ab8a6ab..000000000000
--- a/arch/frv/mm/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# Makefile for the arch-specific parts of the memory manager.
-#
-
-obj-y := init.o kmap.o
-
-obj-$(CONFIG_MMU) += \
-	pgalloc.o highmem.o fault.o extable.o cache-page.o tlb-flush.o tlb-miss.o \
-	mmu-context.o dma-alloc.o elf-fdpic.o
diff --git a/arch/frv/mm/cache-page.c b/arch/frv/mm/cache-page.c
deleted file mode 100644
index 8e09dae0ec3f..000000000000
--- a/arch/frv/mm/cache-page.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/* cache-page.c: whole-page cache wrangling functions for MMU linux
- *
- * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/highmem.h>
-#include <linux/module.h>
-#include <asm/pgalloc.h>
-
-/*****************************************************************************/
-/*
- * DCF takes a virtual address and the page may not currently have one
- * - temporarily hijack a kmap_atomic() slot and attach the page to it
- */
-void flush_dcache_page(struct page *page)
-{
-	unsigned long dampr2;
-	void *vaddr;
-
-	dampr2 = __get_DAMPR(2);
-
-	vaddr = kmap_atomic_primary(page);
-
-	frv_dcache_writeback((unsigned long) vaddr, (unsigned long) vaddr + PAGE_SIZE);
-
-	kunmap_atomic_primary(vaddr);
-
-	if (dampr2) {
-		__set_DAMPR(2, dampr2);
-		__set_IAMPR(2, dampr2);
-	}
-
-} /* end flush_dcache_page() */
-
-EXPORT_SYMBOL(flush_dcache_page);
-
-/*****************************************************************************/
-/*
- * ICI takes a virtual address and the page may not currently have one
- * - so we temporarily attach the page to a bit of virtual space so that is can be flushed
- */
-void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
-			     unsigned long start, unsigned long len)
-{
-	unsigned long dampr2;
-	void *vaddr;
-
-	dampr2 = __get_DAMPR(2);
-
-	vaddr = kmap_atomic_primary(page);
-
-	start = (start & ~PAGE_MASK) | (unsigned long) vaddr;
-	frv_cache_wback_inv(start, start + len);
-
-	kunmap_atomic_primary(vaddr);
-
-	if (dampr2) {
-		__set_DAMPR(2, dampr2);
-		__set_IAMPR(2, dampr2);
-	}
-
-} /* end flush_icache_user_range() */
-
-EXPORT_SYMBOL(flush_icache_user_range);
diff --git a/arch/frv/mm/dma-alloc.c b/arch/frv/mm/dma-alloc.c
deleted file mode 100644
index e701aa9e6a14..000000000000
--- a/arch/frv/mm/dma-alloc.c
+++ /dev/null
@@ -1,183 +0,0 @@
-/* dma-alloc.c: consistent DMA memory allocation
- *
- * Derived from arch/ppc/mm/cachemap.c
- *
- *  PowerPC version derived from arch/arm/mm/consistent.c
- *    Copyright (C) 2001 Dan Malek (dmalek@jlc.net)
- *
- *  linux/arch/arm/mm/consistent.c
- *
- *  Copyright (C) 2000 Russell King
- *
- * Consistent memory allocators.  Used for DMA devices that want to
- * share uncached memory with the processor core.  The function return
- * is the virtual address and 'dma_handle' is the physical address.
- * Mostly stolen from the ARM port, with some changes for PowerPC.
- *						-- Dan
- * Modified for 36-bit support.  -Matt
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#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/swap.h>
-#include <linux/stddef.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/hardirq.h>
-#include <linux/gfp.h>
-
-#include <asm/pgalloc.h>
-#include <asm/io.h>
-#include <asm/mmu_context.h>
-#include <asm/pgtable.h>
-#include <asm/mmu.h>
-#include <linux/uaccess.h>
-#include <asm/smp.h>
-
-static int map_page(unsigned long va, unsigned long pa, pgprot_t prot)
-{
-	pgd_t *pge;
-	pud_t *pue;
-	pmd_t *pme;
-	pte_t *pte;
-	int err = -ENOMEM;
-
-	/* Use upper 10 bits of VA to index the first level map */
-	pge = pgd_offset_k(va);
-	pue = pud_offset(pge, va);
-	pme = pmd_offset(pue, va);
-
-	/* Use middle 10 bits of VA to index the second-level map */
-	pte = pte_alloc_kernel(pme, va);
-	if (pte != 0) {
-		err = 0;
-		set_pte(pte, mk_pte_phys(pa & PAGE_MASK, prot));
-	}
-
-	return err;
-}
-
-/*
- * This function will allocate the requested contiguous pages and
- * map them into the kernel's vmalloc() space.  This is done so we
- * get unique mapping for these pages, outside of the kernel's 1:1
- * virtual:physical mapping.  This is necessary so we can cover large
- * portions of the kernel with single large page TLB entries, and
- * still get unique uncached pages for consistent DMA.
- */
-void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle)
-{
-	struct vm_struct *area;
-	unsigned long page, va, pa;
-	void *ret;
-	int order, err, i;
-
-	if (in_interrupt())
-		BUG();
-
-	/* only allocate page size areas */
-	size = PAGE_ALIGN(size);
-	order = get_order(size);
-
-	page = __get_free_pages(gfp, order);
-	if (!page) {
-		BUG();
-		return NULL;
-	}
-
-	/* allocate some common virtual space to map the new pages */
-	area = get_vm_area(size, VM_ALLOC);
-	if (area == 0) {
-		free_pages(page, order);
-		return NULL;
-	}
-	va = VMALLOC_VMADDR(area->addr);
-	ret = (void *) va;
-
-	/* this gives us the real physical address of the first page */
-	*dma_handle = pa = virt_to_bus((void *) page);
-
-	/* set refcount=1 on all pages in an order>0 allocation so that vfree() will actually free
-	 * all pages that were allocated.
-	 */
-	if (order > 0) {
-		struct page *rpage = virt_to_page(page);
-		split_page(rpage, order);
-	}
-
-	err = 0;
-	for (i = 0; i < size && err == 0; i += PAGE_SIZE)
-		err = map_page(va + i, pa + i, PAGE_KERNEL_NOCACHE);
-
-	if (err) {
-		vfree((void *) va);
-		return NULL;
-	}
-
-	/* we need to ensure that there are no cachelines in use, or worse dirty in this area
-	 * - can't do until after virtual address mappings are created
-	 */
-	frv_cache_invalidate(va, va + size);
-
-	return ret;
-}
-
-/*
- * free page(s) as defined by the above mapping.
- */
-void consistent_free(void *vaddr)
-{
-	if (in_interrupt())
-		BUG();
-	vfree(vaddr);
-}
-
-/*
- * make an area consistent.
- */
-void consistent_sync(void *vaddr, size_t size, int direction)
-{
-	unsigned long start = (unsigned long) vaddr;
-	unsigned long end   = start + size;
-
-	switch (direction) {
-	case PCI_DMA_NONE:
-		BUG();
-	case PCI_DMA_FROMDEVICE:	/* invalidate only */
-		frv_cache_invalidate(start, end);
-		break;
-	case PCI_DMA_TODEVICE:		/* writeback only */
-		frv_dcache_writeback(start, end);
-		break;
-	case PCI_DMA_BIDIRECTIONAL:	/* writeback and invalidate */
-		frv_dcache_writeback(start, end);
-		break;
-	}
-}
-
-/*
- * consistent_sync_page make a page are consistent. identical
- * to consistent_sync, but takes a struct page instead of a virtual address
- */
-
-void consistent_sync_page(struct page *page, unsigned long offset,
-			  size_t size, int direction)
-{
-	void *start;
-
-	start = page_address(page) + offset;
-	consistent_sync(start, size, direction);
-}
diff --git a/arch/frv/mm/elf-fdpic.c b/arch/frv/mm/elf-fdpic.c
deleted file mode 100644
index 46aa289c5102..000000000000
--- a/arch/frv/mm/elf-fdpic.c
+++ /dev/null
@@ -1,114 +0,0 @@
-/* elf-fdpic.c: ELF FDPIC memory layout management
- *
- * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/sched.h>
-#include <linux/sched/mm.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/elf-fdpic.h>
-#include <asm/mman.h>
-
-/*****************************************************************************/
-/*
- * lay out the userspace VM according to our grand design
- */
-#ifdef CONFIG_MMU
-void elf_fdpic_arch_lay_out_mm(struct elf_fdpic_params *exec_params,
-			       struct elf_fdpic_params *interp_params,
-			       unsigned long *start_stack,
-			       unsigned long *start_brk)
-{
-	*start_stack = 0x02200000UL;
-
-	/* if the only executable is a shared object, assume that it is an interpreter rather than
-	 * a true executable, and map it such that "ld.so --list" comes out right
-	 */
-	if (!(interp_params->flags & ELF_FDPIC_FLAG_PRESENT) &&
-	    exec_params->hdr.e_type != ET_EXEC
-	    ) {
-		exec_params->load_addr = PAGE_SIZE;
-
-		*start_brk = 0x80000000UL;
-	}
-	else {
-		exec_params->load_addr = 0x02200000UL;
-
-		if ((exec_params->flags & ELF_FDPIC_FLAG_ARRANGEMENT) ==
-		    ELF_FDPIC_FLAG_INDEPENDENT
-		    ) {
-			exec_params->flags &= ~ELF_FDPIC_FLAG_ARRANGEMENT;
-			exec_params->flags |= ELF_FDPIC_FLAG_CONSTDISP;
-		}
-	}
-
-} /* end elf_fdpic_arch_lay_out_mm() */
-#endif
-
-/*****************************************************************************/
-/*
- * place non-fixed mmaps firstly in the bottom part of memory, working up, and then in the top part
- * of memory, working down
- */
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len,
-				     unsigned long pgoff, unsigned long flags)
-{
-	struct vm_area_struct *vma;
-	struct vm_unmapped_area_info info;
-
-	if (len > TASK_SIZE)
-		return -ENOMEM;
-
-	/* handle MAP_FIXED */
-	if (flags & MAP_FIXED)
-		return addr;
-
-	/* only honour a hint if we're not going to clobber something doing so */
-	if (addr) {
-		addr = PAGE_ALIGN(addr);
-		vma = find_vma(current->mm, addr);
-		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vm_start_gap(vma)))
-			goto success;
-	}
-
-	/* search between the bottom of user VM and the stack grow area */
-	info.flags = 0;
-	info.length = len;
-	info.low_limit = PAGE_SIZE;
-	info.high_limit = (current->mm->start_stack - 0x00200000);
-	info.align_mask = 0;
-	info.align_offset = 0;
-	addr = vm_unmapped_area(&info);
-	if (!(addr & ~PAGE_MASK))
-		goto success;
-	VM_BUG_ON(addr != -ENOMEM);
-
-	/* search from just above the WorkRAM area to the top of memory */
-	info.low_limit = PAGE_ALIGN(0x80000000);
-	info.high_limit = TASK_SIZE;
-	addr = vm_unmapped_area(&info);
-	if (!(addr & ~PAGE_MASK))
-		goto success;
-	VM_BUG_ON(addr != -ENOMEM);
-
-#if 0
-	printk("[area] l=%lx (ENOMEM) f='%s'\n",
-	       len, filp ? filp->f_path.dentry->d_name.name : "");
-#endif
-	return -ENOMEM;
-
- success:
-#if 0
-	printk("[area] l=%lx ad=%lx f='%s'\n",
-	       len, addr, filp ? filp->f_path.dentry->d_name.name : "");
-#endif
-	return addr;
-} /* end arch_get_unmapped_area() */
diff --git a/arch/frv/mm/extable.c b/arch/frv/mm/extable.c
deleted file mode 100644
index 77c0c5ba88bc..000000000000
--- a/arch/frv/mm/extable.c
+++ /dev/null
@@ -1,49 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * linux/arch/frv/mm/extable.c
- */
-
-#include <linux/extable.h>
-#include <linux/spinlock.h>
-#include <linux/uaccess.h>
-
-extern const void __memset_end, __memset_user_error_lr, __memset_user_error_handler;
-extern const void __memcpy_end, __memcpy_user_error_lr, __memcpy_user_error_handler;
-extern spinlock_t modlist_lock;
-
-int fixup_exception(struct pt_regs *regs)
-{
-	const struct exception_table_entry *extab;
-	unsigned long pc = regs->pc;
-
-	/* determine if the fault lay during a memcpy_user or a memset_user */
-	if (regs->lr == (unsigned long) &__memset_user_error_lr &&
-	    (unsigned long) &memset <= pc && pc < (unsigned long) &__memset_end
-	    ) {
-		/* the fault occurred in a protected memset
-		 * - we search for the return address (in LR) instead of the program counter
-		 * - it was probably during a clear_user()
-		 */
-		regs->pc = (unsigned long) &__memset_user_error_handler;
-		return 1;
-	}
-
-	if (regs->lr == (unsigned long) &__memcpy_user_error_lr &&
-	    (unsigned long) &memcpy <= pc && pc < (unsigned long) &__memcpy_end
-	    ) {
-		/* the fault occurred in a protected memset
-		 * - we search for the return address (in LR) instead of the program counter
-		 * - it was probably during a copy_to/from_user()
-		 */
-		regs->pc = (unsigned long) &__memcpy_user_error_handler;
-		return 1;
-	}
-
-	extab = search_exception_tables(pc);
-	if (extab) {
-		regs->pc = extab->fixup;
-		return 1;
-	}
-
-	return 0;
-}
diff --git a/arch/frv/mm/fault.c b/arch/frv/mm/fault.c
deleted file mode 100644
index cbe7aec863e3..000000000000
--- a/arch/frv/mm/fault.c
+++ /dev/null
@@ -1,328 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *  linux/arch/frv/mm/fault.c
- *
- * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
- * - Written by David Howells (dhowells@redhat.com)
- * - Derived from arch/m68knommu/mm/fault.c
- *   - Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>,
- *   - Copyright (C) 2000  Lineo, Inc.  (www.lineo.com)
- *
- *  Based on:
- *
- *  linux/arch/m68k/mm/fault.c
- *
- *  Copyright (C) 1995  Hamish Macdonald
- */
-
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/kernel.h>
-#include <linux/ptrace.h>
-#include <linux/hardirq.h>
-#include <linux/uaccess.h>
-
-#include <asm/pgtable.h>
-#include <asm/gdb-stub.h>
-
-/*****************************************************************************/
-/*
- * This routine handles page faults.  It determines the problem, and
- * then passes it off to one of the appropriate routines.
- */
-asmlinkage void do_page_fault(int datammu, unsigned long esr0, unsigned long ear0)
-{
-	struct vm_area_struct *vma;
-	struct mm_struct *mm;
-	unsigned long _pme, lrai, lrad;
-	unsigned long flags = 0;
-	siginfo_t info;
-	pgd_t *pge;
-	pud_t *pue;
-	pte_t *pte;
-	int fault;
-
-#if 0
-	const char *atxc[16] = {
-		[0x0] = "mmu-miss", [0x8] = "multi-dat", [0x9] = "multi-sat",
-		[0xa] = "tlb-miss", [0xc] = "privilege", [0xd] = "write-prot",
-	};
-
-	printk("do_page_fault(%d,%lx [%s],%lx)\n",
-	       datammu, esr0, atxc[esr0 >> 20 & 0xf], ear0);
-#endif
-
-	mm = current->mm;
-
-	/*
-	 * We fault-in kernel-space virtual memory on-demand. The
-	 * 'reference' page table is init_mm.pgd.
-	 *
-	 * NOTE! We MUST NOT take any locks for this case. We may
-	 * be in an interrupt or a critical region, and should
-	 * only copy the information from the master page table,
-	 * nothing more.
-	 *
-	 * This verifies that the fault happens in kernel space
-	 * and that the fault was a page not present (invalid) error
-	 */
-	if (!user_mode(__frame) && (esr0 & ESR0_ATXC) == ESR0_ATXC_AMRTLB_MISS) {
-		if (ear0 >= VMALLOC_START && ear0 < VMALLOC_END)
-			goto kernel_pte_fault;
-		if (ear0 >= PKMAP_BASE && ear0 < PKMAP_END)
-			goto kernel_pte_fault;
-	}
-
-	info.si_code = SEGV_MAPERR;
-
-	/*
-	 * If we're in an interrupt or have no user
-	 * context, we must not take the fault..
-	 */
-	if (faulthandler_disabled() || !mm)
-		goto no_context;
-
-	if (user_mode(__frame))
-		flags |= FAULT_FLAG_USER;
-
-	down_read(&mm->mmap_sem);
-
-	vma = find_vma(mm, ear0);
-	if (!vma)
-		goto bad_area;
-	if (vma->vm_start <= ear0)
-		goto good_area;
-	if (!(vma->vm_flags & VM_GROWSDOWN))
-		goto bad_area;
-
-	if (user_mode(__frame)) {
-		/*
-		 * accessing the stack below %esp is always a bug.
-		 * The "+ 32" is there due to some instructions (like
-		 * pusha) doing post-decrement on the stack and that
-		 * doesn't show up until later..
-		 */
-		if ((ear0 & PAGE_MASK) + 2 * PAGE_SIZE < __frame->sp) {
-#if 0
-			printk("[%d] ### Access below stack @%lx (sp=%lx)\n",
-			       current->pid, ear0, __frame->sp);
-			show_registers(__frame);
-			printk("[%d] ### Code: [%08lx] %02x %02x %02x %02x %02x %02x %02x %02x\n",
-			       current->pid,
-			       __frame->pc,
-			       ((u8*)__frame->pc)[0],
-			       ((u8*)__frame->pc)[1],
-			       ((u8*)__frame->pc)[2],
-			       ((u8*)__frame->pc)[3],
-			       ((u8*)__frame->pc)[4],
-			       ((u8*)__frame->pc)[5],
-			       ((u8*)__frame->pc)[6],
-			       ((u8*)__frame->pc)[7]
-			       );
-#endif
-			goto bad_area;
-		}
-	}
-
-	if (expand_stack(vma, ear0))
-		goto bad_area;
-
-/*
- * Ok, we have a good vm_area for this memory access, so
- * we can handle it..
- */
- good_area:
-	info.si_code = SEGV_ACCERR;
-	switch (esr0 & ESR0_ATXC) {
-	default:
-		/* handle write to write protected page */
-	case ESR0_ATXC_WP_EXCEP:
-#ifdef TEST_VERIFY_AREA
-		if (!(user_mode(__frame)))
-			printk("WP fault at %08lx\n", __frame->pc);
-#endif
-		if (!(vma->vm_flags & VM_WRITE))
-			goto bad_area;
-		flags |= FAULT_FLAG_WRITE;
-		break;
-
-		 /* handle read from protected page */
-	case ESR0_ATXC_PRIV_EXCEP:
-		goto bad_area;
-
-		 /* handle read, write or exec on absent page
-		  * - can't support write without permitting read
-		  * - don't support execute without permitting read and vice-versa
-		  */
-	case ESR0_ATXC_AMRTLB_MISS:
-		if (!(vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)))
-			goto bad_area;
-		break;
-	}
-
-	/*
-	 * If for any reason at all we couldn't handle the fault,
-	 * make sure we exit gracefully rather than endlessly redo
-	 * the fault.
-	 */
-	fault = handle_mm_fault(vma, ear0, flags);
-	if (unlikely(fault & VM_FAULT_ERROR)) {
-		if (fault & VM_FAULT_OOM)
-			goto out_of_memory;
-		else if (fault & VM_FAULT_SIGSEGV)
-			goto bad_area;
-		else if (fault & VM_FAULT_SIGBUS)
-			goto do_sigbus;
-		BUG();
-	}
-	if (fault & VM_FAULT_MAJOR)
-		current->maj_flt++;
-	else
-		current->min_flt++;
-
-	up_read(&mm->mmap_sem);
-	return;
-
-/*
- * Something tried to access memory that isn't in our memory map..
- * Fix it, but check if it's kernel or user first..
- */
- bad_area:
-	up_read(&mm->mmap_sem);
-
-	/* User mode accesses just cause a SIGSEGV */
-	if (user_mode(__frame)) {
-		info.si_signo = SIGSEGV;
-		info.si_errno = 0;
-		/* info.si_code has been set above */
-		info.si_addr = (void *) ear0;
-		force_sig_info(SIGSEGV, &info, current);
-		return;
-	}
-
- no_context:
-	/* are we prepared to handle this kernel fault? */
-	if (fixup_exception(__frame))
-		return;
-
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- */
-
-	bust_spinlocks(1);
-
-	if (ear0 < 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 addr %08lx\n", ear0);
-	printk("  PC  : %08lx\n", __frame->pc);
-	printk("  EXC : esr0=%08lx ear0=%08lx\n", esr0, ear0);
-
-	asm("lrai %1,%0,#1,#0,#0" : "=&r"(lrai) : "r"(ear0));
-	asm("lrad %1,%0,#1,#0,#0" : "=&r"(lrad) : "r"(ear0));
-
-	printk(KERN_ALERT "  LRAI: %08lx\n", lrai);
-	printk(KERN_ALERT "  LRAD: %08lx\n", lrad);
-
-	__break_hijack_kernel_event();
-
-	pge = pgd_offset(current->mm, ear0);
-	pue = pud_offset(pge, ear0);
-	_pme = pue->pue[0].ste[0];
-
-	printk(KERN_ALERT "  PGE : %8p { PME %08lx }\n", pge, _pme);
-
-	if (_pme & xAMPRx_V) {
-		unsigned long dampr, damlr, val;
-
-		asm volatile("movsg dampr2,%0 ! movgs %2,dampr2 ! movsg damlr2,%1"
-			     : "=&r"(dampr), "=r"(damlr)
-			     : "r" (_pme | xAMPRx_L|xAMPRx_SS_16Kb|xAMPRx_S|xAMPRx_C|xAMPRx_V)
-			     );
-
-		pte = (pte_t *) damlr + __pte_index(ear0);
-		val = pte_val(*pte);
-
-		asm volatile("movgs %0,dampr2" :: "r" (dampr));
-
-		printk(KERN_ALERT "  PTE : %8p { %08lx }\n", pte, val);
-	}
-
-	die_if_kernel("Oops\n");
-	do_exit(SIGKILL);
-
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
- out_of_memory:
-	up_read(&mm->mmap_sem);
-	if (!user_mode(__frame))
-		goto no_context;
-	pagefault_out_of_memory();
-	return;
-
- do_sigbus:
-	up_read(&mm->mmap_sem);
-
-	/*
-	 * Send a sigbus, regardless of whether we were in kernel
-	 * or user mode.
-	 */
-	info.si_signo = SIGBUS;
-	info.si_errno = 0;
-	info.si_code = BUS_ADRERR;
-	info.si_addr = (void *) ear0;
-	force_sig_info(SIGBUS, &info, current);
-
-	/* Kernel mode? Handle exceptions or die */
-	if (!user_mode(__frame))
-		goto no_context;
-	return;
-
-/*
- * The fault was caused by a kernel PTE (such as installed by vmalloc or kmap)
- */
- kernel_pte_fault:
-	{
-		/*
-		 * Synchronize this task's top level page-table
-		 * with the 'reference' page table.
-		 *
-		 * Do _not_ use "tsk" here. We might be inside
-		 * an interrupt in the middle of a task switch..
-		 */
-		int index = pgd_index(ear0);
-		pgd_t *pgd, *pgd_k;
-		pud_t *pud, *pud_k;
-		pmd_t *pmd, *pmd_k;
-		pte_t *pte_k;
-
-		pgd = (pgd_t *) __get_TTBR();
-		pgd = (pgd_t *)__va(pgd) + index;
-		pgd_k = ((pgd_t *)(init_mm.pgd)) + index;
-
-		if (!pgd_present(*pgd_k))
-			goto no_context;
-		//set_pgd(pgd, *pgd_k); /////// gcc ICE's on this line
-
-		pud_k = pud_offset(pgd_k, ear0);
-		if (!pud_present(*pud_k))
-			goto no_context;
-
-		pmd_k = pmd_offset(pud_k, ear0);
-		if (!pmd_present(*pmd_k))
-			goto no_context;
-
-		pud = pud_offset(pgd, ear0);
-		pmd = pmd_offset(pud, ear0);
-		set_pmd(pmd, *pmd_k);
-
-		pte_k = pte_offset_kernel(pmd_k, ear0);
-		if (!pte_present(*pte_k))
-			goto no_context;
-		return;
-	}
-} /* end do_page_fault() */
diff --git a/arch/frv/mm/highmem.c b/arch/frv/mm/highmem.c
deleted file mode 100644
index 45750fb65c49..000000000000
--- a/arch/frv/mm/highmem.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/* highmem.c: arch-specific highmem stuff
- *
- * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/highmem.h>
-#include <linux/module.h>
-
-void *kmap(struct page *page)
-{
-	might_sleep();
-	if (!PageHighMem(page))
-		return page_address(page);
-	return kmap_high(page);
-}
-
-EXPORT_SYMBOL(kmap);
-
-void kunmap(struct page *page)
-{
-	if (in_interrupt())
-		BUG();
-	if (!PageHighMem(page))
-		return;
-	kunmap_high(page);
-}
-
-EXPORT_SYMBOL(kunmap);
-
-void *kmap_atomic(struct page *page)
-{
-	unsigned long paddr;
-	int type;
-
-	preempt_disable();
-	pagefault_disable();
-	type = kmap_atomic_idx_push();
-	paddr = page_to_phys(page);
-
-	switch (type) {
-	/*
-	 * The first 4 primary maps are reserved for architecture code
-	 */
-	case 0:		return __kmap_atomic_primary(0, paddr, 6);
-	case 1:		return __kmap_atomic_primary(0, paddr, 7);
-	case 2:		return __kmap_atomic_primary(0, paddr, 8);
-	case 3:		return __kmap_atomic_primary(0, paddr, 9);
-	case 4:		return __kmap_atomic_primary(0, paddr, 10);
-
-	case 5 ... 5 + NR_TLB_LINES - 1:
-		return __kmap_atomic_secondary(type - 5, paddr);
-
-	default:
-		BUG();
-		return NULL;
-	}
-}
-EXPORT_SYMBOL(kmap_atomic);
-
-void __kunmap_atomic(void *kvaddr)
-{
-	int type = kmap_atomic_idx();
-	switch (type) {
-	case 0:		__kunmap_atomic_primary(0, 6);	break;
-	case 1:		__kunmap_atomic_primary(0, 7);	break;
-	case 2:		__kunmap_atomic_primary(0, 8);	break;
-	case 3:		__kunmap_atomic_primary(0, 9);	break;
-	case 4:		__kunmap_atomic_primary(0, 10);	break;
-
-	case 5 ... 5 + NR_TLB_LINES - 1:
-		__kunmap_atomic_secondary(type - 5, kvaddr);
-		break;
-
-	default:
-		BUG();
-	}
-	kmap_atomic_idx_pop();
-	pagefault_enable();
-	preempt_enable();
-}
-EXPORT_SYMBOL(__kunmap_atomic);
diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c
deleted file mode 100644
index cf464100e838..000000000000
--- a/arch/frv/mm/init.c
+++ /dev/null
@@ -1,144 +0,0 @@
-/* init.c: memory initialisation for FRV
- *
- * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Derived from:
- *  - linux/arch/m68knommu/mm/init.c
- *    - Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>, Kenneth Albanowski <kjahds@kjahds.com>,
- *    - Copyright (C) 2000  Lineo, Inc.  (www.lineo.com)
- *  - linux/arch/m68k/mm/init.c
- *    - Copyright (C) 1995  Hamish Macdonald
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/sched/task.h>
-#include <linux/pagemap.h>
-#include <linux/gfp.h>
-#include <linux/swap.h>
-#include <linux/mm.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/bootmem.h>
-#include <linux/highmem.h>
-#include <linux/module.h>
-
-#include <asm/setup.h>
-#include <asm/segment.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/mmu_context.h>
-#include <asm/virtconvert.h>
-#include <asm/sections.h>
-#include <asm/tlb.h>
-
-#undef DEBUG
-
-/*
- * ZERO_PAGE is a special page that is used for zero-initialized
- * data and COW.
- */
-unsigned long empty_zero_page;
-EXPORT_SYMBOL(empty_zero_page);
-
-/*****************************************************************************/
-/*
- * paging_init() continues the virtual memory environment setup which
- * was begun by the code in arch/head.S.
- * The parameters are pointers to where to stick the starting and ending
- * addresses  of available kernel virtual memory.
- */
-void __init paging_init(void)
-{
-	unsigned long zones_size[MAX_NR_ZONES] = {0, };
-
-	/* allocate some pages for kernel housekeeping tasks */
-	empty_zero_page		= (unsigned long) alloc_bootmem_pages(PAGE_SIZE);
-
-	memset((void *) empty_zero_page, 0, PAGE_SIZE);
-
-#ifdef CONFIG_HIGHMEM
-	if (get_num_physpages() - num_mappedpages) {
-		pgd_t *pge;
-		pud_t *pue;
-		pmd_t *pme;
-
-		pkmap_page_table = alloc_bootmem_pages(PAGE_SIZE);
-
-		pge = swapper_pg_dir + pgd_index_k(PKMAP_BASE);
-		pue = pud_offset(pge, PKMAP_BASE);
-		pme = pmd_offset(pue, PKMAP_BASE);
-		__set_pmd(pme, virt_to_phys(pkmap_page_table) | _PAGE_TABLE);
-	}
-#endif
-
-	/* distribute the allocatable pages across the various zones and pass them to the allocator
-	 */
-	zones_size[ZONE_NORMAL]  = max_low_pfn - min_low_pfn;
-#ifdef CONFIG_HIGHMEM
-	zones_size[ZONE_HIGHMEM] = get_num_physpages() - num_mappedpages;
-#endif
-
-	free_area_init(zones_size);
-
-#ifdef CONFIG_MMU
-	/* initialise init's MMU context */
-	init_new_context(&init_task, &init_mm);
-#endif
-
-} /* end paging_init() */
-
-/*****************************************************************************/
-/*
- *
- */
-void __init mem_init(void)
-{
-	unsigned long code_size = _etext - _stext;
-
-	/* this will put all low memory onto the freelists */
-	free_all_bootmem();
-#if defined(CONFIG_MMU) && defined(CONFIG_HIGHMEM)
-	{
-		unsigned long pfn;
-
-		for (pfn = get_num_physpages() - 1;
-		     pfn >= num_mappedpages; pfn--)
-			free_highmem_page(&mem_map[pfn]);
-	}
-#endif
-
-	mem_init_print_info(NULL);
-	if (rom_length > 0 && rom_length >= code_size)
-		printk("Memory available:  %luKiB/%luKiB ROM\n",
-			(rom_length - code_size) >> 10, rom_length >> 10);
-} /* end mem_init() */
-
-/*****************************************************************************/
-/*
- * free the memory that was only required for initialisation
- */
-void free_initmem(void)
-{
-#if defined(CONFIG_RAMKERNEL) && !defined(CONFIG_PROTECT_KERNEL)
-	free_initmem_default(-1);
-#endif
-} /* end free_initmem() */
-
-/*****************************************************************************/
-/*
- * free the initial ramdisk memory
- */
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-} /* end free_initrd_mem() */
-#endif
diff --git a/arch/frv/mm/kmap.c b/arch/frv/mm/kmap.c
deleted file mode 100644
index e9217e605aa8..000000000000
--- a/arch/frv/mm/kmap.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/* kmap.c: ioremapping handlers
- *
- * Copyright (C) 2003-5 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- * - Derived from arch/m68k/mm/kmap.c
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Found