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Diffstat (limited to 'arch/mips/sgi-ip27/ip27-memory.c')
-rw-r--r--arch/mips/sgi-ip27/ip27-memory.c117
1 files changed, 22 insertions, 95 deletions
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
index bf438d02366..42cd1095630 100644
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -33,10 +33,6 @@
#define SLOT_PFNSHIFT (SLOT_SHIFT - PAGE_SHIFT)
#define PFN_NASIDSHFT (NASID_SHFT - PAGE_SHIFT)
-#define SLOT_IGNORED 0xffff
-
-static short __initdata slot_lastfilled_cache[MAX_COMPACT_NODES];
-static unsigned short __initdata slot_psize_cache[MAX_COMPACT_NODES][MAX_MEM_SLOTS];
static struct bootmem_data __initdata plat_node_bdata[MAX_COMPACT_NODES];
struct node_data *__node_data[MAX_COMPACT_NODES];
@@ -267,51 +263,6 @@ static pfn_t __init slot_getbasepfn(cnodeid_t cnode, int slot)
return ((pfn_t)nasid << PFN_NASIDSHFT) | (slot << SLOT_PFNSHIFT);
}
-/*
- * Return the number of pages of memory provided by the given slot
- * on the specified node.
- */
-static pfn_t __init slot_getsize(cnodeid_t node, int slot)
-{
- return (pfn_t) slot_psize_cache[node][slot];
-}
-
-/*
- * Return highest slot filled
- */
-static int __init node_getlastslot(cnodeid_t node)
-{
- return (int) slot_lastfilled_cache[node];
-}
-
-/*
- * Return the pfn of the last free page of memory on a node.
- */
-static pfn_t __init node_getmaxclick(cnodeid_t node)
-{
- pfn_t slot_psize;
- int slot;
-
- /*
- * Start at the top slot. When we find a slot with memory in it,
- * that's the winner.
- */
- for (slot = (MAX_MEM_SLOTS - 1); slot >= 0; slot--) {
- if ((slot_psize = slot_getsize(node, slot))) {
- if (slot_psize == SLOT_IGNORED)
- continue;
- /* Return the basepfn + the slot size, minus 1. */
- return slot_getbasepfn(node, slot) + slot_psize - 1;
- }
- }
-
- /*
- * If there's no memory on the node, return 0. This is likely
- * to cause problems.
- */
- return 0;
-}
-
static pfn_t __init slot_psize_compute(cnodeid_t node, int slot)
{
nasid_t nasid;
@@ -404,13 +355,13 @@ static void __init mlreset(void)
static void __init szmem(void)
{
pfn_t slot_psize, slot0sz = 0, nodebytes; /* Hack to detect problem configs */
- int slot, ignore;
+ int slot;
cnodeid_t node;
num_physpages = 0;
for_each_online_node(node) {
- ignore = nodebytes = 0;
+ nodebytes = 0;
for (slot = 0; slot < MAX_MEM_SLOTS; slot++) {
slot_psize = slot_psize_compute(node, slot);
if (slot == 0)
@@ -420,21 +371,20 @@ static void __init szmem(void)
* kernel text.
*/
nodebytes += (1LL << SLOT_SHIFT);
+
+ if (!slot_psize)
+ continue;
+
if ((nodebytes >> PAGE_SHIFT) * (sizeof(struct page)) >
- (slot0sz << PAGE_SHIFT))
- ignore = 1;
- if (ignore && slot_psize) {
+ (slot0sz << PAGE_SHIFT)) {
printk("Ignoring slot %d onwards on node %d\n",
slot, node);
- slot_psize_cache[node][slot] = SLOT_IGNORED;
slot = MAX_MEM_SLOTS;
continue;
}
num_physpages += slot_psize;
- slot_psize_cache[node][slot] =
- (unsigned short) slot_psize;
- if (slot_psize)
- slot_lastfilled_cache[node] = slot;
+ add_active_range(node, slot_getbasepfn(node, slot),
+ slot_getbasepfn(node, slot) + slot_psize);
}
}
}
@@ -442,18 +392,20 @@ static void __init szmem(void)
static void __init node_mem_init(cnodeid_t node)
{
pfn_t slot_firstpfn = slot_getbasepfn(node, 0);
- pfn_t slot_lastpfn = slot_firstpfn + slot_getsize(node, 0);
pfn_t slot_freepfn = node_getfirstfree(node);
- struct pglist_data *pd;
unsigned long bootmap_size;
+ pfn_t start_pfn, end_pfn;
+
+ get_pfn_range_for_nid(node, &start_pfn, &end_pfn);
/*
* Allocate the node data structures on the node first.
*/
__node_data[node] = __va(slot_freepfn << PAGE_SHIFT);
- pd = NODE_DATA(node);
- pd->bdata = &plat_node_bdata[node];
+ NODE_DATA(node)->bdata = &plat_node_bdata[node];
+ NODE_DATA(node)->node_start_pfn = start_pfn;
+ NODE_DATA(node)->node_spanned_pages = end_pfn - start_pfn;
cpus_clear(hub_data(node)->h_cpus);
@@ -461,12 +413,12 @@ static void __init node_mem_init(cnodeid_t node)
sizeof(struct hub_data));
bootmap_size = init_bootmem_node(NODE_DATA(node), slot_freepfn,
- slot_firstpfn, slot_lastpfn);
- free_bootmem_node(NODE_DATA(node), slot_firstpfn << PAGE_SHIFT,
- (slot_lastpfn - slot_firstpfn) << PAGE_SHIFT);
+ start_pfn, end_pfn);
+ free_bootmem_with_active_regions(node, end_pfn);
reserve_bootmem_node(NODE_DATA(node), slot_firstpfn << PAGE_SHIFT,
((slot_freepfn - slot_firstpfn) << PAGE_SHIFT) + bootmap_size,
BOOTMEM_DEFAULT);
+ sparse_memory_present_with_active_regions(node);
}
/*
@@ -515,16 +467,15 @@ void __init paging_init(void)
pagetable_init();
for_each_online_node(node) {
- pfn_t start_pfn = slot_getbasepfn(node, 0);
- pfn_t end_pfn = node_getmaxclick(node) + 1;
+ pfn_t start_pfn, end_pfn;
- zones_size[ZONE_NORMAL] = end_pfn - start_pfn;
- free_area_init_node(node, NODE_DATA(node),
- zones_size, start_pfn, NULL);
+ get_pfn_range_for_nid(node, &start_pfn, &end_pfn);
if (end_pfn > max_low_pfn)
max_low_pfn = end_pfn;
}
+ zones_size[ZONE_NORMAL] = max_low_pfn;
+ free_area_init_nodes(zones_size);
}
void __init mem_init(void)
@@ -535,34 +486,10 @@ void __init mem_init(void)
high_memory = (void *) __va(num_physpages << PAGE_SHIFT);
for_each_online_node(node) {
- unsigned slot, numslots;
- struct page *end, *p;
-
/*
* This will free up the bootmem, ie, slot 0 memory.
*/
totalram_pages += free_all_bootmem_node(NODE_DATA(node));
-
- /*
- * We need to manually do the other slots.
- */
- numslots = node_getlastslot(node);
- for (slot = 1; slot <= numslots; slot++) {
- p = nid_page_nr(node, slot_getbasepfn(node, slot) -
- slot_getbasepfn(node, 0));
-
- /*
- * Free valid memory in current slot.
- */
- for (end = p + slot_getsize(node, slot); p < end; p++) {
- /* if (!page_is_ram(pgnr)) continue; */
- /* commented out until page_is_ram works */
- ClearPageReserved(p);
- init_page_count(p);
- __free_page(p);
- totalram_pages++;
- }
- }
}
totalram_pages -= setup_zero_pages(); /* This comes from node 0 */
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 02:11:32 +0000