#include "mm.h"
-extern void _text, _etext, __data_start, _end, __init_begin, __init_end;
-extern unsigned long phys_initrd_start;
-extern unsigned long phys_initrd_size;
+static unsigned long phys_initrd_start __initdata = 0;
+static unsigned long phys_initrd_size __initdata = 0;
+
+static void __init early_initrd(char **p)
+{
+ unsigned long start, size;
+
+ start = memparse(*p, p);
+ if (**p == ',') {
+ size = memparse((*p) + 1, p);
+
+ phys_initrd_start = start;
+ phys_initrd_size = size;
+ }
+}
+__early_param("initrd=", early_initrd);
+
+static int __init parse_tag_initrd(const struct tag *tag)
+{
+ printk(KERN_WARNING "ATAG_INITRD is deprecated; "
+ "please update your bootloader.\n");
+ phys_initrd_start = __virt_to_phys(tag->u.initrd.start);
+ phys_initrd_size = tag->u.initrd.size;
+ return 0;
+}
+
+__tagtable(ATAG_INITRD, parse_tag_initrd);
+
+static int __init parse_tag_initrd2(const struct tag *tag)
+{
+ phys_initrd_start = tag->u.initrd.start;
+ phys_initrd_size = tag->u.initrd.size;
+ return 0;
+}
+
+__tagtable(ATAG_INITRD2, parse_tag_initrd2);
/*
* This is used to pass memory configuration data from paging_init
*/
static struct meminfo meminfo = { 0, };
-#define for_each_nodebank(iter,mi,no) \
- for (iter = 0; iter < mi->nr_banks; iter++) \
- if (mi->bank[iter].node == no)
-
void show_mem(void)
{
int free = 0, total = 0, reserved = 0;
show_free_areas();
for_each_online_node(node) {
pg_data_t *n = NODE_DATA(node);
- struct page *map = n->node_mem_map - n->node_start_pfn;
+ struct page *map = pgdat_page_nr(n, 0) - n->node_start_pfn;
for_each_nodebank (i,mi,node) {
+ struct membank *bank = &mi->bank[i];
unsigned int pfn1, pfn2;
struct page *page, *end;
- pfn1 = __phys_to_pfn(mi->bank[i].start);
- pfn2 = __phys_to_pfn(mi->bank[i].size + mi->bank[i].start);
+ pfn1 = bank_pfn_start(bank);
+ pfn2 = bank_pfn_end(bank);
page = map + pfn1;
end = map + pfn2;
static unsigned int __init
find_bootmap_pfn(int node, struct meminfo *mi, unsigned int bootmap_pages)
{
- unsigned int start_pfn, bank, bootmap_pfn;
+ unsigned int start_pfn, i, bootmap_pfn;
start_pfn = PAGE_ALIGN(__pa(&_end)) >> PAGE_SHIFT;
bootmap_pfn = 0;
- for_each_nodebank(bank, mi, node) {
+ for_each_nodebank(i, mi, node) {
+ struct membank *bank = &mi->bank[i];
unsigned int start, end;
- start = mi->bank[bank].start >> PAGE_SHIFT;
- end = (mi->bank[bank].size +
- mi->bank[bank].start) >> PAGE_SHIFT;
+ start = bank_pfn_start(bank);
+ end = bank_pfn_end(bank);
if (end < start_pfn)
continue;
initrd_node = -1;
for (i = 0; i < mi->nr_banks; i++) {
- unsigned long bank_end;
-
- bank_end = mi->bank[i].start + mi->bank[i].size;
-
- if (mi->bank[i].start <= phys_initrd_start &&
- end <= bank_end)
- initrd_node = mi->bank[i].node;
+ struct membank *bank = &mi->bank[i];
+ if (bank_phys_start(bank) <= phys_initrd_start &&
+ end <= bank_phys_end(bank))
+ initrd_node = bank->node;
}
}
#ifdef CONFIG_MMU
struct map_desc map;
- map.pfn = __phys_to_pfn(bank->start);
- map.virtual = __phys_to_virt(bank->start);
- map.length = bank->size;
+ map.pfn = bank_pfn_start(bank);
+ map.virtual = __phys_to_virt(bank_phys_start(bank));
+ map.length = bank_phys_size(bank);
map.type = MT_MEMORY;
create_mapping(&map);
#endif
}
-static unsigned long __init
-bootmem_init_node(int node, int initrd_node, struct meminfo *mi)
+static unsigned long __init bootmem_init_node(int node, struct meminfo *mi)
{
- unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES];
unsigned long start_pfn, end_pfn, boot_pfn;
unsigned int boot_pages;
pg_data_t *pgdat;
struct membank *bank = &mi->bank[i];
unsigned long start, end;
- start = bank->start >> PAGE_SHIFT;
- end = (bank->start + bank->size) >> PAGE_SHIFT;
+ start = bank_pfn_start(bank);
+ end = bank_pfn_end(bank);
if (start_pfn > start)
start_pfn = start;
pgdat = NODE_DATA(node);
init_bootmem_node(pgdat, boot_pfn, start_pfn, end_pfn);
- for_each_nodebank(i, mi, node)
- free_bootmem_node(pgdat, mi->bank[i].start, mi->bank[i].size);
+ for_each_nodebank(i, mi, node) {
+ struct membank *bank = &mi->bank[i];
+ free_bootmem_node(pgdat, bank_phys_start(bank), bank_phys_size(bank));
+ memory_present(node, bank_pfn_start(bank), bank_pfn_end(bank));
+ }
/*
* Reserve the bootmem bitmap for this node.
reserve_bootmem_node(pgdat, boot_pfn << PAGE_SHIFT,
boot_pages << PAGE_SHIFT, BOOTMEM_DEFAULT);
- /*
- * Reserve any special node zero regions.
- */
- if (node == 0)
- reserve_node_zero(pgdat);
+ return end_pfn;
+}
+static void __init bootmem_reserve_initrd(int node)
+{
#ifdef CONFIG_BLK_DEV_INITRD
- /*
- * If the initrd is in this node, reserve its memory.
- */
- if (node == initrd_node) {
- int res = reserve_bootmem_node(pgdat, phys_initrd_start,
- phys_initrd_size, BOOTMEM_EXCLUSIVE);
-
- if (res == 0) {
- initrd_start = __phys_to_virt(phys_initrd_start);
- initrd_end = initrd_start + phys_initrd_size;
- } else {
- printk(KERN_ERR
- "INITRD: 0x%08lx+0x%08lx overlaps in-use "
- "memory region - disabling initrd\n",
- phys_initrd_start, phys_initrd_size);
- }
+ pg_data_t *pgdat = NODE_DATA(node);
+ int res;
+
+ res = reserve_bootmem_node(pgdat, phys_initrd_start,
+ phys_initrd_size, BOOTMEM_EXCLUSIVE);
+
+ if (res == 0) {
+ initrd_start = __phys_to_virt(phys_initrd_start);
+ initrd_end = initrd_start + phys_initrd_size;
+ } else {
+ printk(KERN_ERR
+ "INITRD: 0x%08lx+0x%08lx overlaps in-use "
+ "memory region - disabling initrd\n",
+ phys_initrd_start, phys_initrd_size);
}
#endif
+}
+
+static void __init bootmem_free_node(int node, struct meminfo *mi)
+{
+ unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES];
+ unsigned long start_pfn, end_pfn;
+ pg_data_t *pgdat = NODE_DATA(node);
+ int i;
+
+ start_pfn = pgdat->bdata->node_min_pfn;
+ end_pfn = pgdat->bdata->node_low_pfn;
/*
* initialise the zones within this node.
*/
zhole_size[0] = zone_size[0];
for_each_nodebank(i, mi, node)
- zhole_size[0] -= mi->bank[i].size >> PAGE_SHIFT;
+ zhole_size[0] -= bank_pfn_size(&mi->bank[i]);
/*
* Adjust the sizes according to any special requirements for
arch_adjust_zones(node, zone_size, zhole_size);
free_area_init_node(node, zone_size, start_pfn, zhole_size);
-
- return end_pfn;
}
void __init bootmem_init(struct meminfo *mi)
{
unsigned long memend_pfn = 0;
- int node, initrd_node, i;
-
- /*
- * Invalidate the node number for empty or invalid memory banks
- */
- for (i = 0; i < mi->nr_banks; i++)
- if (mi->bank[i].size == 0 || mi->bank[i].node >= MAX_NUMNODES)
- mi->bank[i].node = -1;
+ int node, initrd_node;
memcpy(&meminfo, mi, sizeof(meminfo));
* Run through each node initialising the bootmem allocator.
*/
for_each_node(node) {
- unsigned long end_pfn;
+ unsigned long end_pfn = bootmem_init_node(node, mi);
- end_pfn = bootmem_init_node(node, initrd_node, mi);
+ /*
+ * Reserve any special node zero regions.
+ */
+ if (node == 0)
+ reserve_node_zero(NODE_DATA(node));
+
+ /*
+ * If the initrd is in this node, reserve its memory.
+ */
+ if (node == initrd_node)
+ bootmem_reserve_initrd(node);
/*
* Remember the highest memory PFN.
memend_pfn = end_pfn;
}
+ /*
+ * sparse_init() needs the bootmem allocator up and running.
+ */
+ sparse_init();
+
+ /*
+ * Now free memory in each node - free_area_init_node needs
+ * the sparse mem_map arrays initialized by sparse_init()
+ * for memmap_init_zone(), otherwise all PFNs are invalid.
+ */
+ for_each_node(node)
+ bootmem_free_node(node, mi);
+
high_memory = __va(memend_pfn << PAGE_SHIFT);
/*
* information on the command line.
*/
for_each_nodebank(i, mi, node) {
- bank_start = mi->bank[i].start >> PAGE_SHIFT;
+ struct membank *bank = &mi->bank[i];
+
+ bank_start = bank_pfn_start(bank);
if (bank_start < prev_bank_end) {
printk(KERN_ERR "MEM: unordered memory banks. "
"Not freeing memmap.\n");
if (prev_bank_end && prev_bank_end != bank_start)
free_memmap(node, prev_bank_end, bank_start);
- prev_bank_end = (mi->bank[i].start +
- mi->bank[i].size) >> PAGE_SHIFT;
+ prev_bank_end = bank_pfn_end(bank);
}
}
num_physpages = 0;
for (i = 0; i < meminfo.nr_banks; i++) {
- num_physpages += meminfo.bank[i].size >> PAGE_SHIFT;
- printk(" %ldMB", meminfo.bank[i].size >> 20);
+ num_physpages += bank_pfn_size(&meminfo.bank[i]);
+ printk(" %ldMB", bank_phys_size(&meminfo.bank[i]) >> 20);
}
printk(" = %luMB total\n", num_physpages >> (20 - PAGE_SHIFT));
projects / linux-2.6-omap-h63xx.git / blobdiff