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-rw-r--r--arch/ia64/mm/contig.c58
-rw-r--r--arch/ia64/mm/discontig.c44
-rw-r--r--arch/ia64/mm/init.c14
-rw-r--r--arch/ia64/mm/numa.c30
4 files changed, 49 insertions, 97 deletions
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index e30e360beef8..bfc4ecd0a2ab 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -19,15 +19,12 @@
#include <linux/mm.h>
#include <linux/nmi.h>
#include <linux/swap.h>
+#include <linux/sizes.h>
#include <asm/meminit.h>
#include <asm/sections.h>
#include <asm/mca.h>
-#ifdef CONFIG_VIRTUAL_MEM_MAP
-static unsigned long max_gap;
-#endif
-
/* physical address where the bootmem map is located */
unsigned long bootmap_start;
@@ -166,6 +163,32 @@ find_memory (void)
alloc_per_cpu_data();
}
+static int __init find_largest_hole(u64 start, u64 end, void *arg)
+{
+ u64 *max_gap = arg;
+
+ static u64 last_end = PAGE_OFFSET;
+
+ /* NOTE: this algorithm assumes efi memmap table is ordered */
+
+ if (*max_gap < (start - last_end))
+ *max_gap = start - last_end;
+ last_end = end;
+ return 0;
+}
+
+static void __init verify_gap_absence(void)
+{
+ unsigned long max_gap;
+
+ /* Forbid FLATMEM if hole is > than 1G */
+ efi_memmap_walk(find_largest_hole, (u64 *)&max_gap);
+ if (max_gap >= SZ_1G)
+ panic("Cannot use FLATMEM with %ldMB hole\n"
+ "Please switch over to SPARSEMEM\n",
+ (max_gap >> 20));
+}
+
/*
* Set up the page tables.
*/
@@ -177,37 +200,12 @@ paging_init (void)
unsigned long max_zone_pfns[MAX_NR_ZONES];
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
-#ifdef CONFIG_ZONE_DMA32
max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
max_zone_pfns[ZONE_DMA32] = max_dma;
-#endif
max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
-#ifdef CONFIG_VIRTUAL_MEM_MAP
- efi_memmap_walk(find_largest_hole, (u64 *)&max_gap);
- if (max_gap < LARGE_GAP) {
- vmem_map = (struct page *) 0;
- } else {
- unsigned long map_size;
-
- /* allocate virtual_mem_map */
+ verify_gap_absence();
- map_size = PAGE_ALIGN(ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) *
- sizeof(struct page));
- VMALLOC_END -= map_size;
- vmem_map = (struct page *) VMALLOC_END;
- efi_memmap_walk(create_mem_map_page_table, NULL);
-
- /*
- * alloc_node_mem_map makes an adjustment for mem_map
- * which isn't compatible with vmem_map.
- */
- NODE_DATA(0)->node_mem_map = vmem_map +
- find_min_pfn_with_active_regions();
-
- printk("Virtual mem_map starts at 0x%p\n", mem_map);
- }
-#endif /* !CONFIG_VIRTUAL_MEM_MAP */
free_area_init(max_zone_pfns);
zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
}
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index dbe829fc5298..c7311131156e 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -584,6 +584,25 @@ void call_pernode_memory(unsigned long start, unsigned long len, void *arg)
}
}
+static void __init virtual_map_init(void)
+{
+#ifdef CONFIG_VIRTUAL_MEM_MAP
+ int node;
+
+ VMALLOC_END -= PAGE_ALIGN(ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) *
+ sizeof(struct page));
+ vmem_map = (struct page *) VMALLOC_END;
+ efi_memmap_walk(create_mem_map_page_table, NULL);
+ printk("Virtual mem_map starts at 0x%p\n", vmem_map);
+
+ for_each_online_node(node) {
+ unsigned long pfn_offset = mem_data[node].min_pfn;
+
+ NODE_DATA(node)->node_mem_map = vmem_map + pfn_offset;
+ }
+#endif
+}
+
/**
* paging_init - setup page tables
*
@@ -593,38 +612,17 @@ void call_pernode_memory(unsigned long start, unsigned long len, void *arg)
void __init paging_init(void)
{
unsigned long max_dma;
- unsigned long pfn_offset = 0;
- unsigned long max_pfn = 0;
- int node;
unsigned long max_zone_pfns[MAX_NR_ZONES];
max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
sparse_init();
-#ifdef CONFIG_VIRTUAL_MEM_MAP
- VMALLOC_END -= PAGE_ALIGN(ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) *
- sizeof(struct page));
- vmem_map = (struct page *) VMALLOC_END;
- efi_memmap_walk(create_mem_map_page_table, NULL);
- printk("Virtual mem_map starts at 0x%p\n", vmem_map);
-#endif
-
- for_each_online_node(node) {
- pfn_offset = mem_data[node].min_pfn;
-
-#ifdef CONFIG_VIRTUAL_MEM_MAP
- NODE_DATA(node)->node_mem_map = vmem_map + pfn_offset;
-#endif
- if (mem_data[node].max_pfn > max_pfn)
- max_pfn = mem_data[node].max_pfn;
- }
+ virtual_map_init();
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
-#ifdef CONFIG_ZONE_DMA32
max_zone_pfns[ZONE_DMA32] = max_dma;
-#endif
- max_zone_pfns[ZONE_NORMAL] = max_pfn;
+ max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
free_area_init(max_zone_pfns);
zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index ef12e097f318..9b5acf8fb092 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -574,20 +574,6 @@ ia64_pfn_valid (unsigned long pfn)
}
EXPORT_SYMBOL(ia64_pfn_valid);
-int __init find_largest_hole(u64 start, u64 end, void *arg)
-{
- u64 *max_gap = arg;
-
- static u64 last_end = PAGE_OFFSET;
-
- /* NOTE: this algorithm assumes efi memmap table is ordered */
-
- if (*max_gap < (start - last_end))
- *max_gap = start - last_end;
- last_end = end;
- return 0;
-}
-
#endif /* CONFIG_VIRTUAL_MEM_MAP */
int __init register_active_ranges(u64 start, u64 len, int nid)
diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c
index f34964271101..46b6e5f3a40f 100644
--- a/arch/ia64/mm/numa.c
+++ b/arch/ia64/mm/numa.c
@@ -58,36 +58,6 @@ paddr_to_nid(unsigned long paddr)
EXPORT_SYMBOL(paddr_to_nid);
#if defined(CONFIG_SPARSEMEM) && defined(CONFIG_NUMA)
-/*
- * Because of holes evaluate on section limits.
- * If the section of memory exists, then return the node where the section
- * resides. Otherwise return node 0 as the default. This is used by
- * SPARSEMEM to allocate the SPARSEMEM sectionmap on the NUMA node where
- * the section resides.
- */
-int __meminit __early_pfn_to_nid(unsigned long pfn,
- struct mminit_pfnnid_cache *state)
-{
- int i, section = pfn >> PFN_SECTION_SHIFT, ssec, esec;
-
- if (section >= state->last_start && section < state->last_end)
- return state->last_nid;
-
- for (i = 0; i < num_node_memblks; i++) {
- ssec = node_memblk[i].start_paddr >> PA_SECTION_SHIFT;
- esec = (node_memblk[i].start_paddr + node_memblk[i].size +
- ((1L << PA_SECTION_SHIFT) - 1)) >> PA_SECTION_SHIFT;
- if (section >= ssec && section < esec) {
- state->last_start = ssec;
- state->last_end = esec;
- state->last_nid = node_memblk[i].nid;
- return node_memblk[i].nid;
- }
- }
-
- return -1;
-}
-
void numa_clear_node(int cpu)
{
unmap_cpu_from_node(cpu, NUMA_NO_NODE);
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-26 22:30:56 +0300