kernel_optimize_test/arch/m68k/mm/init.c
Geert Uytterhoeven 31833332f7 m68k/mm: Stop printing the virtual memory layout
Since commit ad67b74d24 ("printk: hash addresses printed with
%p"), the virtual memory layout printed during boot up contains "ptrval"
instead of actual addresses:

    Memory: 268040K/276480K available (2979K kernel code, 310K rwdata, 784K rodata, 144K init, 172K bss, 8440K reserved, 0K cma-reserved)
    Virtual kernel memory layout:
	vector  : 0x003d2e74 - 0x003d3274   (   1 KiB)
	kmap    : 0xd0000000 - 0xf0000000   ( 512 MiB)
	vmalloc : 0x11800000 - 0xd0000000   (3048 MiB)
	lowmem  : 0x00000000 - 0x11000000   ( 272 MiB)
	  .init : 0x(ptrval) - 0x(ptrval)   ( 144 KiB)
	  .text : 0x(ptrval) - 0x(ptrval)   (2980 KiB)
	  .data : 0x(ptrval) - 0x(ptrval)   (1095 KiB)
	  .bss  : 0x(ptrval) - 0x(ptrval)   ( 173 KiB)

Instead of changing the printing to "%px", and leaking virtual memory
layout information again, just remove the printing completely, cfr. e.g.
commit 071929dbdd ("arm64: Stop printing the virtual memory
layout").

All interesting information (actual section sizes) is already printed by
mem_init_print_info() just above anyway.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2018-03-19 10:22:59 +01:00

155 lines
3.6 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* linux/arch/m68k/mm/init.c
*
* Copyright (C) 1995 Hamish Macdonald
*
* Contains common initialization routines, specific init code moved
* to motorola.c and sun3mmu.c
*/
#include <linux/module.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/gfp.h>
#include <asm/setup.h>
#include <linux/uaccess.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/io.h>
#ifdef CONFIG_ATARI
#include <asm/atari_stram.h>
#endif
#include <asm/sections.h>
#include <asm/tlb.h>
/*
* ZERO_PAGE is a special page that is used for zero-initialized
* data and COW.
*/
void *empty_zero_page;
EXPORT_SYMBOL(empty_zero_page);
#if !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE)
extern void init_pointer_table(unsigned long ptable);
extern pmd_t *zero_pgtable;
#endif
#ifdef CONFIG_MMU
pg_data_t pg_data_map[MAX_NUMNODES];
EXPORT_SYMBOL(pg_data_map);
int m68k_virt_to_node_shift;
#ifndef CONFIG_SINGLE_MEMORY_CHUNK
pg_data_t *pg_data_table[65];
EXPORT_SYMBOL(pg_data_table);
#endif
void __init m68k_setup_node(int node)
{
#ifndef CONFIG_SINGLE_MEMORY_CHUNK
struct m68k_mem_info *info = m68k_memory + node;
int i, end;
i = (unsigned long)phys_to_virt(info->addr) >> __virt_to_node_shift();
end = (unsigned long)phys_to_virt(info->addr + info->size - 1) >> __virt_to_node_shift();
for (; i <= end; i++) {
if (pg_data_table[i])
pr_warn("overlap at %u for chunk %u\n", i, node);
pg_data_table[i] = pg_data_map + node;
}
#endif
pg_data_map[node].bdata = bootmem_node_data + node;
node_set_online(node);
}
#else /* CONFIG_MMU */
/*
* 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 of the world.
*/
unsigned long end_mem = memory_end & PAGE_MASK;
unsigned long zones_size[MAX_NR_ZONES] = { 0, };
high_memory = (void *) end_mem;
empty_zero_page = alloc_bootmem_pages(PAGE_SIZE);
/*
* Set up SFC/DFC registers (user data space).
*/
set_fs (USER_DS);
zones_size[ZONE_DMA] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT;
free_area_init(zones_size);
}
#endif /* CONFIG_MMU */
void free_initmem(void)
{
#ifndef CONFIG_MMU_SUN3
free_initmem_default(-1);
#endif /* CONFIG_MMU_SUN3 */
}
#if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE)
#define VECTORS &vectors[0]
#else
#define VECTORS _ramvec
#endif
static inline void init_pointer_tables(void)
{
#if defined(CONFIG_MMU) && !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE)
int i;
/* insert pointer tables allocated so far into the tablelist */
init_pointer_table((unsigned long)kernel_pg_dir);
for (i = 0; i < PTRS_PER_PGD; i++) {
if (pgd_present(kernel_pg_dir[i]))
init_pointer_table(__pgd_page(kernel_pg_dir[i]));
}
/* insert also pointer table that we used to unmap the zero page */
if (zero_pgtable)
init_pointer_table((unsigned long)zero_pgtable);
#endif
}
void __init mem_init(void)
{
/* this will put all memory onto the freelists */
free_all_bootmem();
init_pointer_tables();
mem_init_print_info(NULL);
}
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
free_reserved_area((void *)start, (void *)end, -1, "initrd");
}
#endif