void __init mem_init(void)
{
unsigned long codesize, reservedpages, datasize, initsize;
max_mapnr = num_physpages = max_low_pfn;
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
/* Setup guest page hinting */
cmma_init();
/* this will put all low memory onto the freelists */
totalram_pages += free_all_bootmem();
setup_zero_pages(); /* Setup zeroed pages. */
reservedpages = 0;
codesize = (unsigned long) &_etext - (unsigned long) &_text;
datasize = (unsigned long) &_edata - (unsigned long) &_etext;
initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
printk("Memory: %luk/%luk available (%ldk kernel code, %ldk reserved, %ldk data, %ldk init)\n",
nr_free_pages() << (PAGE_SHIFT-10),
max_mapnr << (PAGE_SHIFT-10),
codesize >> 10,
reservedpages << (PAGE_SHIFT-10),
datasize >>10,
initsize >> 10);
printk("Write protected kernel read-only data: %#lx - %#lx\n",
(unsigned long)&_stext,
PFN_ALIGN((unsigned long)&_eshared) - 1);
}
void __init mem_init(void)
{
cpumask_set_cpu(0, &init_mm.context.cpu_attach_mask);
cpumask_set_cpu(0, mm_cpumask(&init_mm));
set_max_mapnr(max_low_pfn);
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
/* Setup guest page hinting */
cmma_init();
/* this will put all low memory onto the freelists */
free_all_bootmem();
setup_zero_pages(); /* Setup zeroed pages. */
cmma_init_nodat();
mem_init_print_info(NULL);
}
void __init mem_init(void)
{
if (MACHINE_HAS_TLB_LC)
cpumask_set_cpu(0, &init_mm.context.cpu_attach_mask);
cpumask_set_cpu(0, mm_cpumask(&init_mm));
atomic_set(&init_mm.context.attach_count, 1);
max_mapnr = max_low_pfn;
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
/* Setup guest page hinting */
cmma_init();
/* this will put all low memory onto the freelists */
free_all_bootmem();
setup_zero_pages(); /* Setup zeroed pages. */
mem_init_print_info(NULL);
printk("Write protected kernel read-only data: %#lx - %#lx\n",
(unsigned long)&_stext,
PFN_ALIGN((unsigned long)&_eshared) - 1);
}
__initfunc(void mem_init(unsigned long start_mem, unsigned long end_mem))
{
int codepages = 0;
int datapages = 0;
unsigned long tmp;
extern int _etext, _ftext;
#ifdef CONFIG_MIPS_JAZZ
if (mips_machgroup == MACH_GROUP_JAZZ)
start_mem = vdma_init(start_mem, end_mem);
#endif
end_mem &= PAGE_MASK;
max_mapnr = MAP_NR(end_mem);
high_memory = (void *)end_mem;
num_physpages = 0;
/* mark usable pages in the mem_map[] */
start_mem = PAGE_ALIGN(start_mem);
for(tmp = MAP_NR(start_mem);tmp < max_mapnr;tmp++)
clear_bit(PG_reserved, &mem_map[tmp].flags);
prom_fixup_mem_map(start_mem, (unsigned long)high_memory);
for (tmp = PAGE_OFFSET; tmp < end_mem; tmp += PAGE_SIZE) {
/*
* This is only for PC-style DMA. The onboard DMA
* of Jazz and Tyne machines is completely different and
* not handled via a flag in mem_map_t.
*/
if (tmp >= MAX_DMA_ADDRESS)
clear_bit(PG_DMA, &mem_map[MAP_NR(tmp)].flags);
if (PageReserved(mem_map+MAP_NR(tmp))) {
if ((tmp < (unsigned long) &_etext) &&
(tmp >= (unsigned long) &_ftext))
codepages++;
else if ((tmp < start_mem) &&
(tmp > (unsigned long) &_etext))
datapages++;
continue;
}
num_physpages++;
atomic_set(&mem_map[MAP_NR(tmp)].count, 1);
#ifdef CONFIG_BLK_DEV_INITRD
if (!initrd_start || (tmp < initrd_start || tmp >=
initrd_end))
#endif
free_page(tmp);
}
tmp = nr_free_pages << PAGE_SHIFT;
/* Setup zeroed pages. */
tmp -= setup_zero_pages();
printk("Memory: %luk/%luk available (%dk kernel code, %dk data)\n",
tmp >> 10,
max_mapnr << (PAGE_SHIFT-10),
codepages << (PAGE_SHIFT-10),
datapages << (PAGE_SHIFT-10));
}
