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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-03-25 18:56:05 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-05-15 15:03:49 +0100
commita2227120eead4ea7d2ea04d8ce0947f1dd23dedf (patch)
tree42b8ef27585c8f4cac294594659f52833037a577 /arch/arm
parentceb683d3bc36f213aeef0c5d79e6fbb1e16bd459 (diff)
downloadlinux-a2227120eead4ea7d2ea04d8ce0947f1dd23dedf.tar.gz
ARM: Move memory mapping into mmu.c
Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mm/init.c24
-rw-r--r--arch/arm/mm/mm.h3
-rw-r--r--arch/arm/mm/mmu.c29
3 files changed, 28 insertions, 28 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 8bbb9a972e7..105d1d4f420 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -225,20 +225,6 @@ static int __init check_initrd(struct meminfo *mi)
return initrd_node;
}
-static inline void map_memory_bank(struct membank *bank)
-{
-#ifdef CONFIG_MMU
- struct map_desc map;
-
- map.pfn = bank_pfn_start(bank);
- map.virtual = __phys_to_virt(bank_phys_start(bank));
- map.length = bank_phys_size(bank);
- map.type = MT_MEMORY;
-
- create_mapping(&map);
-#endif
-}
-
static void __init bootmem_init_node(int node, struct meminfo *mi,
unsigned long start_pfn, unsigned long end_pfn)
{
@@ -248,16 +234,6 @@ static void __init bootmem_init_node(int node, struct meminfo *mi,
int i;
/*
- * Map the memory banks for this node.
- */
- for_each_nodebank(i, mi, node) {
- struct membank *bank = &mi->bank[i];
-
- if (!bank->highmem)
- map_memory_bank(bank);
- }
-
- /*
* Allocate the bootmem bitmap page.
*/
boot_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h
index a888363398f..815d08eecbb 100644
--- a/arch/arm/mm/mm.h
+++ b/arch/arm/mm/mm.h
@@ -28,10 +28,7 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page
#endif
-struct map_desc;
-struct meminfo;
struct pglist_data;
-void __init create_mapping(struct map_desc *md);
void __init bootmem_init(void);
void reserve_node_zero(struct pglist_data *pgdat);
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 91547196915..69852003675 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -600,7 +600,7 @@ static void __init create_36bit_mapping(struct map_desc *md,
* offsets, and we take full advantage of sections and
* supersections.
*/
-void __init create_mapping(struct map_desc *md)
+static void __init create_mapping(struct map_desc *md)
{
unsigned long phys, addr, length, end;
const struct mem_type *type;
@@ -1014,6 +1014,32 @@ static void __init kmap_init(void)
#endif
}
+static inline void map_memory_bank(struct membank *bank)
+{
+ struct map_desc map;
+
+ map.pfn = bank_pfn_start(bank);
+ map.virtual = __phys_to_virt(bank_phys_start(bank));
+ map.length = bank_phys_size(bank);
+ map.type = MT_MEMORY;
+
+ create_mapping(&map);
+}
+
+static void __init map_lowmem(void)
+{
+ struct meminfo *mi = &meminfo;
+ int i;
+
+ /* Map all the lowmem memory banks. */
+ for (i = 0; i < mi->nr_banks; i++) {
+ struct membank *bank = &mi->bank[i];
+
+ if (!bank->highmem)
+ map_memory_bank(bank);
+ }
+}
+
static int __init meminfo_cmp(const void *_a, const void *_b)
{
const struct membank *a = _a, *b = _b;
@@ -1034,6 +1060,7 @@ void __init paging_init(struct machine_desc *mdesc)
build_mem_type_table();
sanity_check_meminfo();
prepare_page_table();
+ map_lowmem();
bootmem_init();
devicemaps_init(mdesc);
kmap_init();