diff options
author | Christoph Hellwig <hch@lst.de> | 2022-02-23 08:47:20 +0100 |
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committer | Christoph Hellwig <hch@lst.de> | 2022-02-23 08:52:50 +0100 |
commit | 1c4b5ecb7ea190fa3e9f9d6891e6c90b60e04f24 (patch) | |
tree | a9444a92909dc4929e0d1e42301e1d3dbd16c35c /arch/h8300/mm | |
parent | 5c1ee569660d4a205dced9cb4d0306b907fb7599 (diff) |
remove the h8300 architecture
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'arch/h8300/mm')
-rw-r--r-- | arch/h8300/mm/Makefile | 6 | ||||
-rw-r--r-- | arch/h8300/mm/fault.c | 57 | ||||
-rw-r--r-- | arch/h8300/mm/init.c | 101 | ||||
-rw-r--r-- | arch/h8300/mm/memory.c | 53 |
4 files changed, 0 insertions, 217 deletions
diff --git a/arch/h8300/mm/Makefile b/arch/h8300/mm/Makefile deleted file mode 100644 index e85b5c91f5bc..000000000000 --- a/arch/h8300/mm/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# -# Makefile for the linux h8300-specific parts of the memory manager. -# - -obj-y := init.o fault.o memory.o diff --git a/arch/h8300/mm/fault.c b/arch/h8300/mm/fault.c deleted file mode 100644 index b465441f490d..000000000000 --- a/arch/h8300/mm/fault.c +++ /dev/null @@ -1,57 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * linux/arch/h8300/mm/fault.c - * - * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, - * Copyright (C) 2000 Lineo, Inc. (www.lineo.com) - * - * Based on: - * - * linux/arch/m68knommu/mm/fault.c - * 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> - - -void die(const char *str, struct pt_regs *fp, unsigned long err); - -/* - * This routine handles page faults. It determines the problem, and - * then passes it off to one of the appropriate routines. - * - * error_code: - * bit 0 == 0 means no page found, 1 means protection fault - * bit 1 == 0 means read, 1 means write - * - * If this routine detects a bad access, it returns 1, otherwise it - * returns 0. - */ -asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address, - unsigned long error_code) -{ -#ifdef DEBUG - pr_debug("regs->sr=%#x, regs->pc=%#lx, address=%#lx, %ld\n", - regs->sr, regs->pc, address, error_code); -#endif - -/* - * Oops. The kernel tried to access some bad page. We'll have to - * terminate things with extreme prejudice. - */ - if ((unsigned long) address < PAGE_SIZE) - pr_alert("Unable to handle kernel NULL pointer dereference"); - else - pr_alert("Unable to handle kernel access"); - printk(" at virtual address %08lx\n", address); - if (!user_mode(regs)) - die("Oops", regs, error_code); - make_task_dead(SIGKILL); - - return 1; -} diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c deleted file mode 100644 index f7bf4693e3b2..000000000000 --- a/arch/h8300/mm/init.c +++ /dev/null @@ -1,101 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * linux/arch/h8300/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) - * - * Based on: - * - * linux/arch/m68knommu/mm/init.c - * linux/arch/m68k/mm/init.c - * - * Copyright (C) 1995 Hamish Macdonald - * - * JAN/1999 -- hacked to support ColdFire (gerg@snapgear.com) - * DEC/2000 -- linux 2.4 support <davidm@snapgear.com> - */ - -#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/init.h> -#include <linux/highmem.h> -#include <linux/pagemap.h> -#include <linux/memblock.h> -#include <linux/gfp.h> - -#include <asm/setup.h> -#include <asm/segment.h> -#include <asm/page.h> -#include <asm/sections.h> - -/* - * ZERO_PAGE is a special page that is used for zero-initialized - * data and COW. - */ -unsigned long 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) -{ - /* - * Make sure start_mem is page aligned, otherwise bootmem and - * page_alloc get different views og the world. - */ - unsigned long start_mem = PAGE_ALIGN(memory_start); - unsigned long end_mem = memory_end & PAGE_MASK; - - pr_debug("start_mem is %#lx\nvirtual_end is %#lx\n", - start_mem, end_mem); - - /* - * Initialize the bad page table and bad page to point - * to a couple of allocated pages. - */ - empty_zero_page = (unsigned long)memblock_alloc(PAGE_SIZE, PAGE_SIZE); - if (!empty_zero_page) - panic("%s: Failed to allocate %lu bytes align=0x%lx\n", - __func__, PAGE_SIZE, PAGE_SIZE); - - /* - * Set up SFC/DFC registers (user data space). - */ - set_fs(USER_DS); - - pr_debug("before free_area_init\n"); - - pr_debug("free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n", - start_mem, end_mem); - - { - unsigned long max_zone_pfn[MAX_NR_ZONES] = {0, }; - - max_zone_pfn[ZONE_NORMAL] = end_mem >> PAGE_SHIFT; - free_area_init(max_zone_pfn); - } -} - -void __init mem_init(void) -{ - pr_devel("Mem_init: start=%lx, end=%lx\n", memory_start, memory_end); - - high_memory = (void *) (memory_end & PAGE_MASK); - max_mapnr = MAP_NR(high_memory); - - /* this will put all low memory onto the freelists */ - memblock_free_all(); -} diff --git a/arch/h8300/mm/memory.c b/arch/h8300/mm/memory.c deleted file mode 100644 index 4a60e2b5eb96..000000000000 --- a/arch/h8300/mm/memory.c +++ /dev/null @@ -1,53 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * linux/arch/h8300/mm/memory.c - * - * Copyright (C) 2002 Yoshinori Sato <ysato@users.sourceforge.jp>, - * - * Based on: - * - * linux/arch/m68knommu/mm/memory.c - * - * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>, - * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) - * - * Based on: - * - * linux/arch/m68k/mm/memory.c - * - * Copyright (C) 1995 Hamish Macdonald - */ - -#include <linux/mm.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/types.h> - -#include <asm/setup.h> -#include <asm/segment.h> -#include <asm/page.h> -#include <asm/traps.h> -#include <asm/io.h> - -void cache_clear(unsigned long paddr, int len) -{ -} - - -void cache_push(unsigned long paddr, int len) -{ -} - -void cache_push_v(unsigned long vaddr, int len) -{ -} - -/* - * Map some physical address range into the kernel address space. - */ - -unsigned long kernel_map(unsigned long paddr, unsigned long size, - int nocacheflag, unsigned long *memavailp) -{ - return paddr; -} |