1 files changed, 0 insertions, 161 deletions

diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index 534255a36b6b..73a6d7395bd3 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -73,167 +73,6 @@ unsigned long node_memmap_size_bytes(int nid, unsigned long start_pfn,
 
 extern unsigned long highend_pfn, highstart_pfn;
 
-#define LARGE_PAGE_BYTES (PTRS_PER_PTE * PAGE_SIZE)
-
-static void *node_remap_start_vaddr[MAX_NUMNODES];
-void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags);
-
-/*
- * Remap memory allocator
- */
-static unsigned long node_remap_start_pfn[MAX_NUMNODES];
-static void *node_remap_end_vaddr[MAX_NUMNODES];
-static void *node_remap_alloc_vaddr[MAX_NUMNODES];
-
-/**
- * alloc_remap - Allocate remapped memory
- * @nid: NUMA node to allocate memory from
- * @size: The size of allocation
- *
- * Allocate @size bytes from the remap area of NUMA node @nid.  The
- * size of the remap area is predetermined by init_alloc_remap() and
- * only the callers considered there should call this function.  For
- * more info, please read the comment on top of init_alloc_remap().
- *
- * The caller must be ready to handle allocation failure from this
- * function and fall back to regular memory allocator in such cases.
- *
- * CONTEXT:
- * Single CPU early boot context.
- *
- * RETURNS:
- * Pointer to the allocated memory on success, %NULL on failure.
- */
-void *alloc_remap(int nid, unsigned long size)
-{
-        void *allocation = node_remap_alloc_vaddr[nid];
-
-        size = ALIGN(size, L1_CACHE_BYTES);
-
-        if (!allocation || (allocation + size) > node_remap_end_vaddr[nid])
-                return NULL;
-
-        node_remap_alloc_vaddr[nid] += size;
-        memset(allocation, 0, size);
-
-        return allocation;
-}
-
-#ifdef CONFIG_HIBERNATION
-/**
- * resume_map_numa_kva - add KVA mapping to the temporary page tables created
- *                       during resume from hibernation
- * @pgd_base - temporary resume page directory
- */
-void resume_map_numa_kva(pgd_t *pgd_base)
-{
-        int node;
-
-        for_each_online_node(node) {
-                unsigned long start_va, start_pfn, nr_pages, pfn;
-
-                start_va = (unsigned long)node_remap_start_vaddr[node];
-                start_pfn = node_remap_start_pfn[node];
-                nr_pages = (node_remap_end_vaddr[node] -
-                            node_remap_start_vaddr[node]) >> PAGE_SHIFT;
-
-                printk(KERN_DEBUG "%s: node %d\n", __func__, node);
-
-                for (pfn = 0; pfn < nr_pages; pfn += PTRS_PER_PTE) {
-                        unsigned long vaddr = start_va + (pfn << PAGE_SHIFT);
-                        pgd_t *pgd = pgd_base + pgd_index(vaddr);
-                        pud_t *pud = pud_offset(pgd, vaddr);
-                        pmd_t *pmd = pmd_offset(pud, vaddr);
-
-                        set_pmd(pmd, pfn_pmd(start_pfn + pfn,
-                                                PAGE_KERNEL_LARGE_EXEC));
-
-                        printk(KERN_DEBUG "%s: %08lx -> pfn %08lx\n",
-                                __func__, vaddr, start_pfn + pfn);
-                }
-        }
-}
-#endif
-
-/**
- * init_alloc_remap - Initialize remap allocator for a NUMA node
- * @nid: NUMA node to initizlie remap allocator for
- *
- * NUMA nodes may end up without any lowmem.  As allocating pgdat and
- * memmap on a different node with lowmem is inefficient, a special
- * remap allocator is implemented which can be used by alloc_remap().
- *
- * For each node, the amount of memory which will be necessary for
- * pgdat and memmap is calculated and two memory areas of the size are
- * allocated - one in the node and the other in lowmem; then, the area
- * in the node is remapped to the lowmem area.
- *
- * As pgdat and memmap must be allocated in lowmem anyway, this
- * doesn't waste lowmem address space; however, the actual lowmem
- * which gets remapped over is wasted.  The amount shouldn't be
- * problematic on machines this feature will be used.
- *
- * Initialization failure isn't fatal.  alloc_remap() is used
- * opportunistically and the callers will fall back to other memory
- * allocation mechanisms on failure.
- */
-void __init init_alloc_remap(int nid, u64 start, u64 end)
-{
-        unsigned long start_pfn = start >> PAGE_SHIFT;
-        unsigned long end_pfn = end >> PAGE_SHIFT;
-        unsigned long size, pfn;
-        u64 node_pa, remap_pa;
-        void *remap_va;
-
-        /*
-         * The acpi/srat node info can show hot-add memroy zones where
-         * memory could be added but not currently present.
-         */
-        printk(KERN_DEBUG "node %d pfn: [%lx - %lx]\n",
-               nid, start_pfn, end_pfn);
-
-        /* calculate the necessary space aligned to large page size */
-        size = node_memmap_size_bytes(nid, start_pfn, end_pfn);
-        size += ALIGN(sizeof(pg_data_t), PAGE_SIZE);
-        size = ALIGN(size, LARGE_PAGE_BYTES);
-
-        /* allocate node memory and the lowmem remap area */
-        node_pa = memblock_find_in_range(start, end, size, LARGE_PAGE_BYTES);
-        if (!node_pa) {
-                pr_warning("remap_alloc: failed to allocate %lu bytes for node %d\n",
-                           size, nid);
-                return;
-        }
-        memblock_reserve(node_pa, size);
-
-        remap_pa = memblock_find_in_range(min_low_pfn << PAGE_SHIFT,
-                                          max_low_pfn << PAGE_SHIFT,
-                                          size, LARGE_PAGE_BYTES);
-        if (!remap_pa) {
-                pr_warning("remap_alloc: failed to allocate %lu bytes remap area for node %d\n",
-                           size, nid);
-                memblock_free(node_pa, size);
-                return;
-        }
-        memblock_reserve(remap_pa, size);
-        remap_va = phys_to_virt(remap_pa);
-
-        /* perform actual remap */
-        for (pfn = 0; pfn < size >> PAGE_SHIFT; pfn += PTRS_PER_PTE)
-                set_pmd_pfn((unsigned long)remap_va + (pfn << PAGE_SHIFT),
-                            (node_pa >> PAGE_SHIFT) + pfn,
-                            PAGE_KERNEL_LARGE);
-
-        /* initialize remap allocator parameters */
-        node_remap_start_pfn[nid] = node_pa >> PAGE_SHIFT;
-        node_remap_start_vaddr[nid] = remap_va;
-        node_remap_end_vaddr[nid] = remap_va + size;
-        node_remap_alloc_vaddr[nid] = remap_va;
-
-        printk(KERN_DEBUG "remap_alloc: node %d [%08llx-%08llx) -> [%p-%p)\n",
-               nid, node_pa, node_pa + size, remap_va, remap_va + size);
-}
-
 void __init initmem_init(void)
 {
         x86_numa_init();