1 files changed, 126 insertions, 119 deletions

diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index daf977ff292..52715a71aed 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -16,7 +16,9 @@
  */
 #include <linux/bootmem.h>
 #include <linux/efi.h>
+#include <linux/memblock.h>
 #include <linux/mm.h>
+#include <linux/nmi.h>
 #include <linux/swap.h>
 
 #include <asm/meminit.h>
@@ -29,72 +31,10 @@
 static unsigned long max_gap;
 #endif
 
-/**
- * show_mem - display a memory statistics summary
- *
- * Just walks the pages in the system and describes where they're allocated.
- */
-void
-show_mem (void)
-{
-	int i, total = 0, reserved = 0;
-	int shared = 0, cached = 0;
-
-	printk(KERN_INFO "Mem-info:\n");
-	show_free_areas();
-
-	printk(KERN_INFO "Free swap:       %6ldkB\n",
-	       nr_swap_pages<<(PAGE_SHIFT-10));
-	i = max_mapnr;
-	for (i = 0; i < max_mapnr; i++) {
-		if (!pfn_valid(i)) {
-#ifdef CONFIG_VIRTUAL_MEM_MAP
-			if (max_gap < LARGE_GAP)
-				continue;
-			i = vmemmap_find_next_valid_pfn(0, i) - 1;
-#endif
-			continue;
-		}
-		total++;
-		if (PageReserved(mem_map+i))
-			reserved++;
-		else if (PageSwapCache(mem_map+i))
-			cached++;
-		else if (page_count(mem_map + i))
-			shared += page_count(mem_map + i) - 1;
-	}
-	printk(KERN_INFO "%d pages of RAM\n", total);
-	printk(KERN_INFO "%d reserved pages\n", reserved);
-	printk(KERN_INFO "%d pages shared\n", shared);
-	printk(KERN_INFO "%d pages swap cached\n", cached);
-	printk(KERN_INFO "%ld pages in page table cache\n",
-	       pgtable_quicklist_total_size());
-}
-
 /* physical address where the bootmem map is located */
 unsigned long bootmap_start;
 
 /**
- * find_max_pfn - adjust the maximum page number callback
- * @start: start of range
- * @end: end of range
- * @arg: address of pointer to global max_pfn variable
- *
- * Passed as a callback function to efi_memmap_walk() to determine the highest
- * available page frame number in the system.
- */
-int
-find_max_pfn (unsigned long start, unsigned long end, void *arg)
-{
-	unsigned long *max_pfnp = arg, pfn;
-
-	pfn = (PAGE_ALIGN(end - 1) - PAGE_OFFSET) >> PAGE_SHIFT;
-	if (pfn > *max_pfnp)
-		*max_pfnp = pfn;
-	return 0;
-}
-
-/**
  * find_bootmap_location - callback to find a memory area for the bootmap
  * @start: start of region
  * @end: end of region
@@ -104,10 +44,10 @@ find_max_pfn (unsigned long start, unsigned long end, void *arg)
  * bootmap_start.  This address must be page-aligned.
  */
 static int __init
-find_bootmap_location (unsigned long start, unsigned long end, void *arg)
+find_bootmap_location (u64 start, u64 end, void *arg)
 {
-	unsigned long needed = *(unsigned long *)arg;
-	unsigned long range_start, range_end, free_start;
+	u64 needed = *(unsigned long *)arg;
+	u64 range_start, range_end, free_start;
 	int i;
 
 #if IGNORE_PFN0
@@ -141,6 +81,112 @@ find_bootmap_location (unsigned long start, unsigned long end, void *arg)
 	return 0;
 }
 
+#ifdef CONFIG_SMP
+static void *cpu_data;
+/**
+ * per_cpu_init - setup per-cpu variables
+ *
+ * Allocate and setup per-cpu data areas.
+ */
+void *per_cpu_init(void)
+{
+	static bool first_time = true;
+	void *cpu0_data = __cpu0_per_cpu;
+	unsigned int cpu;
+
+	if (!first_time)
+		goto skip;
+	first_time = false;
+
+	/*
+	 * get_free_pages() cannot be used before cpu_init() done.
+	 * BSP allocates PERCPU_PAGE_SIZE bytes for all possible CPUs
+	 * to avoid that AP calls get_zeroed_page().
+	 */
+	for_each_possible_cpu(cpu) {
+		void *src = cpu == 0 ? cpu0_data : __phys_per_cpu_start;
+
+		memcpy(cpu_data, src, __per_cpu_end - __per_cpu_start);
+		__per_cpu_offset[cpu] = (char *)cpu_data - __per_cpu_start;
+		per_cpu(local_per_cpu_offset, cpu) = __per_cpu_offset[cpu];
+
+		/*
+		 * percpu area for cpu0 is moved from the __init area
+		 * which is setup by head.S and used till this point.
+		 * Update ar.k3.  This move is ensures that percpu
+		 * area for cpu0 is on the correct node and its
+		 * virtual address isn't insanely far from other
+		 * percpu areas which is important for congruent
+		 * percpu allocator.
+		 */
+		if (cpu == 0)
+			ia64_set_kr(IA64_KR_PER_CPU_DATA, __pa(cpu_data) -
+				    (unsigned long)__per_cpu_start);
+
+		cpu_data += PERCPU_PAGE_SIZE;
+	}
+skip:
+	return __per_cpu_start + __per_cpu_offset[smp_processor_id()];
+}
+
+static inline void
+alloc_per_cpu_data(void)
+{
+	cpu_data = __alloc_bootmem(PERCPU_PAGE_SIZE * num_possible_cpus(),
+				   PERCPU_PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
+}
+
+/**
+ * setup_per_cpu_areas - setup percpu areas
+ *
+ * Arch code has already allocated and initialized percpu areas.  All
+ * this function has to do is to teach the determined layout to the
+ * dynamic percpu allocator, which happens to be more complex than
+ * creating whole new ones using helpers.
+ */
+void __init
+setup_per_cpu_areas(void)
+{
+	struct pcpu_alloc_info *ai;
+	struct pcpu_group_info *gi;
+	unsigned int cpu;
+	ssize_t static_size, reserved_size, dyn_size;
+	int rc;
+
+	ai = pcpu_alloc_alloc_info(1, num_possible_cpus());
+	if (!ai)
+		panic("failed to allocate pcpu_alloc_info");
+	gi = &ai->groups[0];
+
+	/* units are assigned consecutively to possible cpus */
+	for_each_possible_cpu(cpu)
+		gi->cpu_map[gi->nr_units++] = cpu;
+
+	/* set parameters */
+	static_size = __per_cpu_end - __per_cpu_start;
+	reserved_size = PERCPU_MODULE_RESERVE;
+	dyn_size = PERCPU_PAGE_SIZE - static_size - reserved_size;
+	if (dyn_size < 0)
+		panic("percpu area overflow static=%zd reserved=%zd\n",
+		      static_size, reserved_size);
+
+	ai->static_size		= static_size;
+	ai->reserved_size	= reserved_size;
+	ai->dyn_size		= dyn_size;
+	ai->unit_size		= PERCPU_PAGE_SIZE;
+	ai->atom_size		= PAGE_SIZE;
+	ai->alloc_size		= PERCPU_PAGE_SIZE;
+
+	rc = pcpu_setup_first_chunk(ai, __per_cpu_start + __per_cpu_offset[0]);
+	if (rc)
+		panic("failed to setup percpu area (err=%d)", rc);
+
+	pcpu_free_alloc_info(ai);
+}
+#else
+#define alloc_per_cpu_data() do { } while (0)
+#endif /* CONFIG_SMP */
+
 /**
  * find_memory - setup memory map
  *
@@ -155,9 +201,10 @@ find_memory (void)
 	reserve_memory();
 
 	/* first find highest page frame number */
-	max_pfn = 0;
-	efi_memmap_walk(find_max_pfn, &max_pfn);
-
+	min_low_pfn = ~0UL;
+	max_low_pfn = 0;
+	efi_memmap_walk(find_max_min_low_pfn, NULL);
+	max_pfn = max_low_pfn;
 	/* how many bytes to cover all the pages */
 	bootmap_size = bootmem_bootmap_pages(max_pfn) << PAGE_SHIFT;
 
@@ -167,55 +214,16 @@ find_memory (void)
 	if (bootmap_start == ~0UL)
 		panic("Cannot find %ld bytes for bootmap\n", bootmap_size);
 
-	bootmap_size = init_bootmem(bootmap_start >> PAGE_SHIFT, max_pfn);
+	bootmap_size = init_bootmem_node(NODE_DATA(0),
+			(bootmap_start >> PAGE_SHIFT), 0, max_pfn);
 
 	/* Free all available memory, then mark bootmem-map as being in use. */
 	efi_memmap_walk(filter_rsvd_memory, free_bootmem);
-	reserve_bootmem(bootmap_start, bootmap_size);
+	reserve_bootmem(bootmap_start, bootmap_size, BOOTMEM_DEFAULT);
 
 	find_initrd();
-}
 
-#ifdef CONFIG_SMP
-/**
- * per_cpu_init - setup per-cpu variables
- *
- * Allocate and setup per-cpu data areas.
- */
-void * __cpuinit
-per_cpu_init (void)
-{
-	void *cpu_data;
-	int cpu;
-	static int first_time=1;
-
-	/*
-	 * get_free_pages() cannot be used before cpu_init() done.  BSP
-	 * allocates "NR_CPUS" pages for all CPUs to avoid that AP calls
-	 * get_zeroed_page().
-	 */
-	if (first_time) {
-		first_time=0;
-		cpu_data = __alloc_bootmem(PERCPU_PAGE_SIZE * NR_CPUS,
-					   PERCPU_PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
-		for (cpu = 0; cpu < NR_CPUS; cpu++) {
-			memcpy(cpu_data, __phys_per_cpu_start, __per_cpu_end - __per_cpu_start);
-			__per_cpu_offset[cpu] = (char *) cpu_data - __per_cpu_start;
-			cpu_data += PERCPU_PAGE_SIZE;
-			per_cpu(local_per_cpu_offset, cpu) = __per_cpu_offset[cpu];
-		}
-	}
-	return __per_cpu_start + __per_cpu_offset[smp_processor_id()];
-}
-#endif /* CONFIG_SMP */
-
-static int
-count_pages (u64 start, u64 end, void *arg)
-{
-	unsigned long *count = arg;
-
-	*count += (end - start) >> PAGE_SHIFT;
-	return 0;
+	alloc_per_cpu_data();
 }
 
 /*
@@ -226,18 +234,17 @@ void __init
 paging_init (void)
 {
 	unsigned long max_dma;
-	unsigned long nid = 0;
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
 
-	num_physpages = 0;
-	efi_memmap_walk(count_pages, &num_physpages);
-
+	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
+#ifdef CONFIG_ZONE_DMA
 	max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
 	max_zone_pfns[ZONE_DMA] = max_dma;
+#endif
 	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
 
 #ifdef CONFIG_VIRTUAL_MEM_MAP
-	efi_memmap_walk(register_active_ranges, &nid);
+	efi_memmap_walk(filter_memory, register_active_ranges);
 	efi_memmap_walk(find_largest_hole, (u64 *)&max_gap);
 	if (max_gap < LARGE_GAP) {
 		vmem_map = (struct page *) 0;
@@ -249,8 +256,8 @@ paging_init (void)
 
 		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;
+		VMALLOC_END -= map_size;
+		vmem_map = (struct page *) VMALLOC_END;
 		efi_memmap_walk(create_mem_map_page_table, NULL);
 
 		/*
@@ -264,7 +271,7 @@ paging_init (void)
 		printk("Virtual mem_map starts at 0x%p\n", mem_map);
 	}
 #else /* !CONFIG_VIRTUAL_MEM_MAP */
-	add_active_range(0, 0, max_low_pfn);
+	memblock_add_node(0, PFN_PHYS(max_low_pfn), 0);
 	free_area_init_nodes(max_zone_pfns);
 #endif /* !CONFIG_VIRTUAL_MEM_MAP */
 	zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));