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-rw-r--r--arch/powerpc/mm/mem.c77
1 files changed, 15 insertions, 62 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 8ebaac75c940..b7285a5870f8 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -35,6 +35,7 @@
#include <linux/memblock.h>
#include <linux/hugetlb.h>
#include <linux/slab.h>
+#include <linux/vmalloc.h>
#include <asm/pgalloc.h>
#include <asm/prom.h>
@@ -60,7 +61,6 @@
#define CPU_FTR_NOEXECUTE 0
#endif
-int init_bootmem_done;
int mem_init_done;
unsigned long long memory_limit;
@@ -144,8 +144,17 @@ int arch_remove_memory(u64 start, u64 size)
zone = page_zone(pfn_to_page(start_pfn));
ret = __remove_pages(zone, start_pfn, nr_pages);
- if (!ret && (ppc_md.remove_memory))
- ret = ppc_md.remove_memory(start, size);
+ if (ret)
+ return ret;
+
+ /* Remove htab bolted mappings for this section of memory */
+ start = (unsigned long)__va(start);
+ ret = remove_section_mapping(start, start + size);
+
+ /* Ensure all vmalloc mappings are flushed in case they also
+ * hit that section of memory
+ */
+ vm_unmap_aliases();
return ret;
}
@@ -180,70 +189,23 @@ walk_system_ram_range(unsigned long start_pfn, unsigned long nr_pages,
}
EXPORT_SYMBOL_GPL(walk_system_ram_range);
-/*
- * Initialize the bootmem system and give it all the memory we
- * have available. If we are using highmem, we only put the
- * lowmem into the bootmem system.
- */
#ifndef CONFIG_NEED_MULTIPLE_NODES
-void __init do_init_bootmem(void)
+void __init initmem_init(void)
{
- unsigned long start, bootmap_pages;
- unsigned long total_pages;
- struct memblock_region *reg;
- int boot_mapsize;
-
max_low_pfn = max_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT;
- total_pages = (memblock_end_of_DRAM() - memstart_addr) >> PAGE_SHIFT;
+ min_low_pfn = MEMORY_START >> PAGE_SHIFT;
#ifdef CONFIG_HIGHMEM
- total_pages = total_lowmem >> PAGE_SHIFT;
max_low_pfn = lowmem_end_addr >> PAGE_SHIFT;
#endif
- /*
- * Find an area to use for the bootmem bitmap. Calculate the size of
- * bitmap required as (Total Memory) / PAGE_SIZE / BITS_PER_BYTE.
- * Add 1 additional page in case the address isn't page-aligned.
- */
- bootmap_pages = bootmem_bootmap_pages(total_pages);
-
- start = memblock_alloc(bootmap_pages << PAGE_SHIFT, PAGE_SIZE);
-
- min_low_pfn = MEMORY_START >> PAGE_SHIFT;
- boot_mapsize = init_bootmem_node(NODE_DATA(0), start >> PAGE_SHIFT, min_low_pfn, max_low_pfn);
-
/* Place all memblock_regions in the same node and merge contiguous
* memblock_regions
*/
memblock_set_node(0, (phys_addr_t)ULLONG_MAX, &memblock.memory, 0);
- /* Add all physical memory to the bootmem map, mark each area
- * present.
- */
-#ifdef CONFIG_HIGHMEM
- free_bootmem_with_active_regions(0, lowmem_end_addr >> PAGE_SHIFT);
-
- /* reserve the sections we're already using */
- for_each_memblock(reserved, reg) {
- unsigned long top = reg->base + reg->size - 1;
- if (top < lowmem_end_addr)
- reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT);
- else if (reg->base < lowmem_end_addr) {
- unsigned long trunc_size = lowmem_end_addr - reg->base;
- reserve_bootmem(reg->base, trunc_size, BOOTMEM_DEFAULT);
- }
- }
-#else
- free_bootmem_with_active_regions(0, max_pfn);
-
- /* reserve the sections we're already using */
- for_each_memblock(reserved, reg)
- reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT);
-#endif
/* XXX need to clip this if using highmem? */
sparse_memory_present_with_active_regions(0);
-
- init_bootmem_done = 1;
+ sparse_init();
}
/* mark pages that don't exist as nosave */
@@ -359,14 +321,6 @@ void __init paging_init(void)
mark_nonram_nosave();
}
-static void __init register_page_bootmem_info(void)
-{
- int i;
-
- for_each_online_node(i)
- register_page_bootmem_info_node(NODE_DATA(i));
-}
-
void __init mem_init(void)
{
/*
@@ -379,7 +333,6 @@ void __init mem_init(void)
swiotlb_init(0);
#endif
- register_page_bootmem_info();
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
set_max_mapnr(max_pfn);
free_all_bootmem();