/* User can over-ride above with "mem=nnn[KkMm]" in cmdline */
static int __init setup_mem_sz(char *str)
{
low_mem_sz = memparse(str, NULL) & PAGE_MASK;
/* early console might not be setup yet - it will show up later */
pr_info("\"mem=%s\": mem sz set to %ldM\n", str, TO_MB(low_mem_sz));
return 0;
}
static void print_section_info(struct section *s)
{
printf("section: ");
printf_bin(s->name, SECTION_NAME_MAXLEN);
printf("\n");
printf("Mem addr: 0x%.8x\n", ntohl(s->memaddr));
printf("Index: 0x%.8x\n", ntohl(s->index));
printf("Base addr: 0x%.8x\n", ntohl(s->baseaddr));
printf("Entry addr: 0x%.8x\n", ntohl(s->entryaddr));
printf("Data size: %u bytes (KB = %.1f) (MB = %.1f)\n",
ntohl(s->data_size),
(float)TO_KB(ntohl(s->data_size)),
(float)TO_MB(ntohl(s->data_size)));
printf("Part size: %u bytes (KB = %.1f) (MB = %.1f)\n",
ntohl(s->part_size),
(float)TO_KB(ntohl(s->part_size)),
(float)TO_MB(ntohl(s->part_size)));
}
void __init early_init_dt_add_memory_arch(u64 base, u64 size)
{
int in_use = 0;
if (!low_mem_sz) {
BUG_ON(base != low_mem_start);
low_mem_sz = size;
in_use = 1;
} else {
#ifdef CONFIG_HIGHMEM
high_mem_start = base;
high_mem_sz = size;
in_use = 1;
#endif
}
pr_info("Memory @ %llx [%lldM] %s\n",
base, TO_MB(size), !in_use ? "Not used":"");
}
/*
* mem_init - initializes memory
*
* Frees up bootmem
* Calculates and displays memory available/used
*/
void __init mem_init(void)
{
int codesize, datasize, initsize, reserved_pages, free_pages;
int tmp;
high_memory = (void *)(CONFIG_LINUX_LINK_BASE + arc_mem_sz);
free_all_bootmem();
/* count all reserved pages [kernel code/data/mem_map..] */
reserved_pages = 0;
for (tmp = 0; tmp < max_mapnr; tmp++)
if (PageReserved(mem_map + tmp))
reserved_pages++;
/* XXX: nr_free_pages() is equivalent */
free_pages = max_mapnr - reserved_pages;
/*
* For the purpose of display below, split the "reserve mem"
* kernel code/data is already shown explicitly,
* Show any other reservations (mem_map[ ] et al)
*/
reserved_pages -= (((unsigned int)_end - CONFIG_LINUX_LINK_BASE) >>
PAGE_SHIFT);
codesize = _etext - _text;
datasize = _end - _etext;
initsize = __init_end - __init_begin;
pr_info("Memory Available: %dM / %ldM (%dK code, %dK data, %dK init, %dK reserv)\n",
PAGES_TO_MB(free_pages),
TO_MB(arc_mem_sz),
TO_KB(codesize), TO_KB(datasize), TO_KB(initsize),
PAGES_TO_KB(reserved_pages));
}
void __init early_init_dt_add_memory_arch(u64 base, u64 size)
{
arc_mem_sz = size & PAGE_MASK;
pr_info("Memory size set via devicetree %ldM\n", TO_MB(arc_mem_sz));
}