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authorChristoph Hellwig <hch@lst.de>2022-02-23 08:47:20 +0100
committerChristoph Hellwig <hch@lst.de>2022-02-23 08:52:50 +0100
commit1c4b5ecb7ea190fa3e9f9d6891e6c90b60e04f24 (patch)
treea9444a92909dc4929e0d1e42301e1d3dbd16c35c /arch/h8300/mm
parent5c1ee569660d4a205dced9cb4d0306b907fb7599 (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/Makefile6
-rw-r--r--arch/h8300/mm/fault.c57
-rw-r--r--arch/h8300/mm/init.c101
-rw-r--r--arch/h8300/mm/memory.c53
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;
-}